diff options
Diffstat (limited to 'drivers/acpi')
128 files changed, 4403 insertions, 3700 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index c24652d31bf9..610d2cc02cf8 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -10,9 +10,8 @@ menu "ACPI (Advanced Configuration and Power Interface) Support" config ACPI bool "ACPI Support" depends on IA64 || X86 + depends on PCI select PM - select PCI - default y ---help--- Advanced Configuration and Power Interface (ACPI) support for @@ -162,7 +161,7 @@ config ACPI_THERMAL config ACPI_NUMA bool "NUMA support" depends on NUMA - depends on (IA64 || X86_64) + depends on (X86 || IA64) default y if IA64_GENERIC || IA64_SGI_SN2 config ACPI_ASUS @@ -329,7 +328,7 @@ config ACPI_CONTAINER config ACPI_HOTPLUG_MEMORY tristate "Memory Hotplug" depends on ACPI - depends on MEMORY_HOTPLUG || X86_64 + depends on MEMORY_HOTPLUG default n help This driver adds supports for ACPI Memory Hotplug. This driver diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index d882bf87fa96..1012284ff4f7 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -57,6 +57,7 @@ MODULE_LICENSE("GPL"); static int acpi_memory_device_add(struct acpi_device *device); static int acpi_memory_device_remove(struct acpi_device *device, int type); +static int acpi_memory_device_start(struct acpi_device *device); static struct acpi_driver acpi_memory_device_driver = { .name = ACPI_MEMORY_DEVICE_DRIVER_NAME, @@ -65,49 +66,79 @@ static struct acpi_driver acpi_memory_device_driver = { .ops = { .add = acpi_memory_device_add, .remove = acpi_memory_device_remove, + .start = acpi_memory_device_start, }, }; +struct acpi_memory_info { + struct list_head list; + u64 start_addr; /* Memory Range start physical addr */ + u64 length; /* Memory Range length */ + unsigned short caching; /* memory cache attribute */ + unsigned short write_protect; /* memory read/write attribute */ + unsigned int enabled:1; +}; + struct acpi_memory_device { acpi_handle handle; unsigned int state; /* State of the memory device */ - unsigned short caching; /* memory cache attribute */ - unsigned short write_protect; /* memory read/write attribute */ - u64 start_addr; /* Memory Range start physical addr */ - u64 end_addr; /* Memory Range end physical addr */ + struct list_head res_list; }; +static acpi_status +acpi_memory_get_resource(struct acpi_resource *resource, void *context) +{ + struct acpi_memory_device *mem_device = context; + struct acpi_resource_address64 address64; + struct acpi_memory_info *info, *new; + acpi_status status; + + status = acpi_resource_to_address64(resource, &address64); + if (ACPI_FAILURE(status) || + (address64.resource_type != ACPI_MEMORY_RANGE)) + return AE_OK; + + list_for_each_entry(info, &mem_device->res_list, list) { + /* Can we combine the resource range information? */ + if ((info->caching == address64.info.mem.caching) && + (info->write_protect == address64.info.mem.write_protect) && + (info->start_addr + info->length == address64.minimum)) { + info->length += address64.address_length; + return AE_OK; + } + } + + new = kzalloc(sizeof(struct acpi_memory_info), GFP_KERNEL); + if (!new) + return AE_ERROR; + + INIT_LIST_HEAD(&new->list); + new->caching = address64.info.mem.caching; + new->write_protect = address64.info.mem.write_protect; + new->start_addr = address64.minimum; + new->length = address64.address_length; + list_add_tail(&new->list, &mem_device->res_list); + + return AE_OK; +} + static int acpi_memory_get_device_resources(struct acpi_memory_device *mem_device) { acpi_status status; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - struct acpi_resource *resource = NULL; - struct acpi_resource_address64 address64; + struct acpi_memory_info *info, *n; ACPI_FUNCTION_TRACE("acpi_memory_get_device_resources"); - /* Get the range from the _CRS */ - status = acpi_get_current_resources(mem_device->handle, &buffer); - if (ACPI_FAILURE(status)) - return_VALUE(-EINVAL); - - resource = (struct acpi_resource *)buffer.pointer; - status = acpi_resource_to_address64(resource, &address64); - if (ACPI_SUCCESS(status)) { - if (address64.resource_type == ACPI_MEMORY_RANGE) { - /* Populate the structure */ - mem_device->caching = - address64.info.mem.caching; - mem_device->write_protect = - address64.info.mem.write_protect; - mem_device->start_addr = address64.minimum; - mem_device->end_addr = address64.maximum; - } + status = acpi_walk_resources(mem_device->handle, METHOD_NAME__CRS, + acpi_memory_get_resource, mem_device); + if (ACPI_FAILURE(status)) { + list_for_each_entry_safe(info, n, &mem_device->res_list, list) + kfree(info); + return -EINVAL; } - acpi_os_free(buffer.pointer); - return_VALUE(0); + return 0; } static int @@ -182,7 +213,9 @@ static int acpi_memory_check_device(struct acpi_memory_device *mem_device) static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) { - int result; + int result, num_enabled = 0; + struct acpi_memory_info *info; + int node; ACPI_FUNCTION_TRACE("acpi_memory_enable_device"); @@ -195,16 +228,35 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) return result; } + node = acpi_get_node(mem_device->handle); /* * Tell the VM there is more memory here... * Note: Assume that this function returns zero on success + * We don't have memory-hot-add rollback function,now. + * (i.e. memory-hot-remove function) */ - result = add_memory(mem_device->start_addr, - (mem_device->end_addr - mem_device->start_addr) + 1); - if (result) { + list_for_each_entry(info, &mem_device->res_list, list) { + u64 start_pfn, end_pfn; + + start_pfn = info->start_addr >> PAGE_SHIFT; + end_pfn = (info->start_addr + info->length - 1) >> PAGE_SHIFT; + + if (pfn_valid(start_pfn) || pfn_valid(end_pfn)) { + /* already enabled. try next area */ + num_enabled++; + continue; + } + + result = add_memory(node, info->start_addr, info->length); + if (result) + continue; + info->enabled = 1; + num_enabled++; + } + if (!num_enabled) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "\nadd_memory failed\n")); mem_device->state = MEMORY_INVALID_STATE; - return result; + return -EINVAL; } return result; @@ -248,8 +300,7 @@ static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device) static int acpi_memory_disable_device(struct acpi_memory_device *mem_device) { int result; - u64 start = mem_device->start_addr; - u64 len = mem_device->end_addr - start + 1; + struct acpi_memory_info *info, *n; ACPI_FUNCTION_TRACE("acpi_memory_disable_device"); @@ -257,10 +308,13 @@ static int acpi_memory_disable_device(struct acpi_memory_device *mem_device) * Ask the VM to offline this memory range. * Note: Assume that this function returns zero on success */ - result = remove_memory(start, len); - if (result) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Hot-Remove failed.\n")); - return_VALUE(result); + list_for_each_entry_safe(info, n, &mem_device->res_list, list) { + if (info->enabled) { + result = remove_memory(info->start_addr, info->length); + if (result) + return result; + } + kfree(info); } /* Power-off and eject the device */ @@ -358,6 +412,7 @@ static int acpi_memory_device_add(struct acpi_device *device) return_VALUE(-ENOMEM); memset(mem_device, 0, sizeof(struct acpi_memory_device)); + INIT_LIST_HEAD(&mem_device->res_list); mem_device->handle = device->handle; sprintf(acpi_device_name(device), "%s", ACPI_MEMORY_DEVICE_NAME); sprintf(acpi_device_class(device), "%s", ACPI_MEMORY_DEVICE_CLASS); @@ -393,6 +448,25 @@ static int acpi_memory_device_remove(struct acpi_device *device, int type) return_VALUE(0); } +static int acpi_memory_device_start (struct acpi_device *device) +{ + struct acpi_memory_device *mem_device; + int result = 0; + + ACPI_FUNCTION_TRACE("acpi_memory_device_start"); + + mem_device = acpi_driver_data(device); + + if (!acpi_memory_check_device(mem_device)) { + /* call add_memory func */ + result = acpi_memory_enable_device(mem_device); + if (result) + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error in acpi_memory_enable_device\n")); + } + return_VALUE(result); +} + /* * Helper function to check for memory device */ diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c index f4c87750dbf2..839f423d738d 100644 --- a/drivers/acpi/asus_acpi.c +++ b/drivers/acpi/asus_acpi.c @@ -817,7 +817,7 @@ typedef int (proc_writefunc) (struct file * file, const char __user * buffer, unsigned long count, void *data); static int -__init asus_proc_add(char *name, proc_writefunc * writefunc, +asus_proc_add(char *name, proc_writefunc * writefunc, proc_readfunc * readfunc, mode_t mode, struct acpi_device *device) { @@ -836,7 +836,7 @@ __init asus_proc_add(char *name, proc_writefunc * writefunc, return 0; } -static int __init asus_hotk_add_fs(struct acpi_device *device) +static int asus_hotk_add_fs(struct acpi_device *device) { struct proc_dir_entry *proc; mode_t mode; @@ -954,7 +954,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data) * This function is used to initialize the hotk with right values. In this * method, we can make all the detection we want, and modify the hotk struct */ -static int __init asus_hotk_get_info(void) +static int asus_hotk_get_info(void) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; struct acpi_buffer dsdt = { ACPI_ALLOCATE_BUFFER, NULL }; @@ -970,7 +970,7 @@ static int __init asus_hotk_get_info(void) * HID), this bit will be moved. A global variable asus_info contains * the DSDT header. */ - status = acpi_get_table(ACPI_TABLE_DSDT, 1, &dsdt); + status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt); if (ACPI_FAILURE(status)) printk(KERN_WARNING " Couldn't get the DSDT table header\n"); else @@ -1101,7 +1101,7 @@ static int __init asus_hotk_get_info(void) return AE_OK; } -static int __init asus_hotk_check(void) +static int asus_hotk_check(void) { int result = 0; @@ -1119,7 +1119,9 @@ static int __init asus_hotk_check(void) return result; } -static int __init asus_hotk_add(struct acpi_device *device) +static int asus_hotk_found; + +static int asus_hotk_add(struct acpi_device *device) { acpi_status status = AE_OK; int result; @@ -1180,6 +1182,8 @@ static int __init asus_hotk_add(struct acpi_device *device) } } + asus_hotk_found = 1; + end: if (result) { kfree(hotk); @@ -1226,12 +1230,24 @@ static int __init asus_acpi_init(void) asus_proc_dir->owner = THIS_MODULE; result = acpi_bus_register_driver(&asus_hotk_driver); - if (result < 1) { - acpi_bus_unregister_driver(&asus_hotk_driver); + if (result < 0) { remove_proc_entry(PROC_ASUS, acpi_root_dir); return -ENODEV; } + /* + * This is a bit of a kludge. We only want this module loaded + * for ASUS systems, but there's currently no way to probe the + * ACPI namespace for ASUS HIDs. So we just return failure if + * we didn't find one, which will cause the module to be + * unloaded. + */ + if (!asus_hotk_found) { + acpi_bus_unregister_driver(&asus_hotk_driver); + remove_proc_entry(PROC_ASUS, acpi_root_dir); + return result; + } + return 0; } diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 606f8733a776..dd3983cece92 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -43,7 +43,7 @@ ACPI_MODULE_NAME("acpi_bus") extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger); #endif -FADT_DESCRIPTOR acpi_fadt; +struct fadt_descriptor acpi_fadt; EXPORT_SYMBOL(acpi_fadt); struct acpi_device *acpi_root; @@ -205,12 +205,14 @@ int acpi_bus_set_power(acpi_handle handle, int state) * Get device's current power state if it's unknown * This means device power state isn't initialized or previous setting failed */ - if (device->power.state == ACPI_STATE_UNKNOWN) - acpi_bus_get_power(device->handle, &device->power.state); - if (state == device->power.state) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", - state)); - return_VALUE(0); + if (!device->flags.force_power_state) { + if (device->power.state == ACPI_STATE_UNKNOWN) + acpi_bus_get_power(device->handle, &device->power.state); + if (state == device->power.state) { + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", + state)); + return_VALUE(0); + } } if (!device->power.states[state].flags.valid) { ACPI_DEBUG_PRINT((ACPI_DB_WARN, "Device does not support D%d\n", @@ -596,6 +598,8 @@ void __init acpi_early_init(void) if (acpi_disabled) return_VOID; + printk(KERN_INFO PREFIX "Core revision %08x\n", ACPI_CA_VERSION); + /* enable workarounds, unless strict ACPI spec. compliance */ if (!acpi_strict) acpi_gbl_enable_interpreter_slack = TRUE; @@ -617,7 +621,7 @@ void __init acpi_early_init(void) /* * Get a separate copy of the FADT for use by other drivers. */ - status = acpi_get_table(ACPI_TABLE_FADT, 1, &buffer); + status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &buffer); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "Unable to get the FADT\n"); goto error0; @@ -743,8 +747,6 @@ static int __init acpi_init(void) ACPI_FUNCTION_TRACE("acpi_init"); - printk(KERN_INFO PREFIX "Subsystem revision %08x\n", ACPI_CA_VERSION); - if (acpi_disabled) { printk(KERN_INFO PREFIX "Interpreter disabled.\n"); return_VALUE(-ENODEV); diff --git a/drivers/acpi/dispatcher/dsfield.c b/drivers/acpi/dispatcher/dsfield.c index 76bc0463f6de..a6d77efb41a0 100644 --- a/drivers/acpi/dispatcher/dsfield.c +++ b/drivers/acpi/dispatcher/dsfield.c @@ -87,7 +87,7 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op, union acpi_operand_object *second_desc = NULL; u32 flags; - ACPI_FUNCTION_TRACE("ds_create_buffer_field"); + ACPI_FUNCTION_TRACE(ds_create_buffer_field); /* Get the name_string argument */ @@ -210,7 +210,7 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info, acpi_status status; acpi_integer position; - ACPI_FUNCTION_TRACE_PTR("ds_get_field_names", info); + ACPI_FUNCTION_TRACE_PTR(ds_get_field_names, info); /* First field starts at bit zero */ @@ -342,7 +342,7 @@ acpi_ds_create_field(union acpi_parse_object *op, union acpi_parse_object *arg; struct acpi_create_field_info info; - ACPI_FUNCTION_TRACE_PTR("ds_create_field", op); + ACPI_FUNCTION_TRACE_PTR(ds_create_field, op); /* First arg is the name of the parent op_region (must already exist) */ @@ -399,7 +399,7 @@ acpi_ds_init_field_objects(union acpi_parse_object *op, struct acpi_namespace_node *node; u8 type = 0; - ACPI_FUNCTION_TRACE_PTR("ds_init_field_objects", op); + ACPI_FUNCTION_TRACE_PTR(ds_init_field_objects, op); switch (walk_state->opcode) { case AML_FIELD_OP: @@ -425,6 +425,7 @@ acpi_ds_init_field_objects(union acpi_parse_object *op, * Walk the list of entries in the field_list */ while (arg) { + /* Ignore OFFSET and ACCESSAS terms here */ if (arg->common.aml_opcode == AML_INT_NAMEDFIELD_OP) { @@ -481,7 +482,7 @@ acpi_ds_create_bank_field(union acpi_parse_object *op, union acpi_parse_object *arg; struct acpi_create_field_info info; - ACPI_FUNCTION_TRACE_PTR("ds_create_bank_field", op); + ACPI_FUNCTION_TRACE_PTR(ds_create_bank_field, op); /* First arg is the name of the parent op_region (must already exist) */ @@ -554,7 +555,7 @@ acpi_ds_create_index_field(union acpi_parse_object *op, union acpi_parse_object *arg; struct acpi_create_field_info info; - ACPI_FUNCTION_TRACE_PTR("ds_create_index_field", op); + ACPI_FUNCTION_TRACE_PTR(ds_create_index_field, op); /* First arg is the name of the Index register (must already exist) */ diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c index e65a07ad2422..bbdf990e9f65 100644 --- a/drivers/acpi/dispatcher/dsinit.c +++ b/drivers/acpi/dispatcher/dsinit.c @@ -184,7 +184,7 @@ acpi_ds_init_one_object(acpi_handle obj_handle, * * RETURN: Status * - * DESCRIPTION: Walk the namespace starting at "start_node" and perform any + * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any * necessary initialization on the objects found therein * ******************************************************************************/ @@ -196,7 +196,7 @@ acpi_ds_initialize_objects(struct acpi_table_desc * table_desc, acpi_status status; struct acpi_init_walk_info info; - ACPI_FUNCTION_TRACE("ds_initialize_objects"); + ACPI_FUNCTION_TRACE(ds_initialize_objects); ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "**** Starting initialization of namespace objects ****\n")); @@ -213,7 +213,7 @@ acpi_ds_initialize_objects(struct acpi_table_desc * table_desc, status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX, acpi_ds_init_one_object, &info, NULL); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace")); + ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); } ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, diff --git a/drivers/acpi/dispatcher/dsmethod.c b/drivers/acpi/dispatcher/dsmethod.c index c475546535b6..bc9aca4e7401 100644 --- a/drivers/acpi/dispatcher/dsmethod.c +++ b/drivers/acpi/dispatcher/dsmethod.c @@ -81,6 +81,7 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state) /* Invoke the global exception handler */ if (acpi_gbl_exception_handler) { + /* Exit the interpreter, allow handler to execute methods */ acpi_ex_exit_interpreter(); @@ -100,6 +101,7 @@ acpi_ds_method_error(acpi_status status, struct acpi_walk_state *walk_state) } #ifdef ACPI_DISASSEMBLER if (ACPI_FAILURE(status)) { + /* Display method locals/args if disassembler is present */ acpi_dm_dump_method_info(status, walk_state, walk_state->op); @@ -132,7 +134,7 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_PTR("ds_begin_method_execution", method_node); + ACPI_FUNCTION_TRACE_PTR(ds_begin_method_execution, method_node); if (!method_node) { return_ACPI_STATUS(AE_NULL_ENTRY); @@ -168,11 +170,14 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node, /* * Get a unit from the method semaphore. This releases the - * interpreter if we block + * interpreter if we block (then reacquires it) */ status = acpi_ex_system_wait_semaphore(obj_desc->method.semaphore, ACPI_WAIT_FOREVER); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } } /* @@ -183,7 +188,7 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node, if (!obj_desc->method.owner_id) { status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + goto cleanup; } } @@ -193,6 +198,14 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node * method_node, */ obj_desc->method.thread_count++; return_ACPI_STATUS(status); + + cleanup: + /* On error, must signal the method semaphore if present */ + + if (obj_desc->method.semaphore) { + (void)acpi_os_signal_semaphore(obj_desc->method.semaphore, 1); + } + return_ACPI_STATUS(status); } /******************************************************************************* @@ -218,10 +231,10 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, struct acpi_namespace_node *method_node; struct acpi_walk_state *next_walk_state = NULL; union acpi_operand_object *obj_desc; - struct acpi_parameter_info info; + struct acpi_evaluate_info *info; u32 i; - ACPI_FUNCTION_TRACE_PTR("ds_call_control_method", this_walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_call_control_method, this_walk_state); ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Execute method %p, currentstate=%p\n", @@ -240,25 +253,31 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, return_ACPI_STATUS(AE_NULL_OBJECT); } - /* Init for new method, wait on concurrency semaphore */ + /* Init for new method, possibly wait on concurrency semaphore */ status = acpi_ds_begin_method_execution(method_node, obj_desc, this_walk_state->method_node); if (ACPI_FAILURE(status)) { - goto cleanup; + return_ACPI_STATUS(status); } + /* + * 1) Parse the method. All "normal" methods are parsed for each execution. + * Internal methods (_OSI, etc.) do not require parsing. + */ if (!(obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY)) { - /* 1) Parse: Create a new walk state for the preempting walk */ + + /* Create a new walk state for the parse */ next_walk_state = acpi_ds_create_walk_state(obj_desc->method.owner_id, op, obj_desc, NULL); if (!next_walk_state) { - return_ACPI_STATUS(AE_NO_MEMORY); + status = AE_NO_MEMORY; + goto cleanup; } - /* Create and init a Root Node */ + /* Create and init a parse tree root */ op = acpi_ps_create_scope_op(); if (!op) { @@ -271,17 +290,20 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, obj_desc->method.aml_length, NULL, 1); if (ACPI_FAILURE(status)) { - acpi_ds_delete_walk_state(next_walk_state); + acpi_ps_delete_parse_tree(op); goto cleanup; } - /* Begin AML parse */ + /* Begin AML parse (deletes next_walk_state) */ status = acpi_ps_parse_aml(next_walk_state); acpi_ps_delete_parse_tree(op); + if (ACPI_FAILURE(status)) { + goto cleanup; + } } - /* 2) Execute: Create a new state for the preempting walk */ + /* 2) Begin method execution. Create a new walk state */ next_walk_state = acpi_ds_create_walk_state(obj_desc->method.owner_id, NULL, obj_desc, thread); @@ -289,6 +311,7 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, status = AE_NO_MEMORY; goto cleanup; } + /* * The resolved arguments were put on the previous walk state's operand * stack. Operands on the previous walk state stack always @@ -296,12 +319,24 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, */ this_walk_state->operands[this_walk_state->num_operands] = NULL; - info.parameters = &this_walk_state->operands[0]; - info.parameter_type = ACPI_PARAM_ARGS; + /* + * Allocate and initialize the evaluation information block + * TBD: this is somewhat inefficient, should change interface to + * ds_init_aml_walk. For now, keeps this struct off the CPU stack + */ + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->parameters = &this_walk_state->operands[0]; + info->parameter_type = ACPI_PARAM_ARGS; status = acpi_ds_init_aml_walk(next_walk_state, NULL, method_node, obj_desc->method.aml_start, - obj_desc->method.aml_length, &info, 3); + obj_desc->method.aml_length, info, 3); + + ACPI_FREE(info); if (ACPI_FAILURE(status)) { goto cleanup; } @@ -323,6 +358,8 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, "Starting nested execution, newstate=%p\n", next_walk_state)); + /* Invoke an internal method if necessary */ + if (obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { status = obj_desc->method.implementation(next_walk_state); } @@ -330,16 +367,14 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread, return_ACPI_STATUS(status); cleanup: - /* Decrement the thread count on the method parse tree */ - if (next_walk_state && (next_walk_state->method_desc)) { - next_walk_state->method_desc->method.thread_count--; - } + /* On error, we must terminate the method properly */ - /* On error, we must delete the new walk state */ + acpi_ds_terminate_control_method(obj_desc, next_walk_state); + if (next_walk_state) { + acpi_ds_delete_walk_state(next_walk_state); + } - acpi_ds_terminate_control_method(next_walk_state); - acpi_ds_delete_walk_state(next_walk_state); return_ACPI_STATUS(status); } @@ -362,25 +397,33 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state, union acpi_operand_object *return_desc) { acpi_status status; + int same_as_implicit_return; - ACPI_FUNCTION_TRACE_PTR("ds_restart_control_method", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_restart_control_method, walk_state); ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "****Restart [%4.4s] Op %p return_value_from_callee %p\n", + "****Restart [%4.4s] Op %p ReturnValueFromCallee %p\n", (char *)&walk_state->method_node->name, walk_state->method_call_op, return_desc)); ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - " return_from_this_method_used?=%X res_stack %p Walk %p\n", + " ReturnFromThisMethodUsed?=%X ResStack %p Walk %p\n", walk_state->return_used, walk_state->results, walk_state)); /* Did the called method return a value? */ if (return_desc) { + + /* Is the implicit return object the same as the return desc? */ + + same_as_implicit_return = + (walk_state->implicit_return_obj == return_desc); + /* Are we actually going to use the return value? */ if (walk_state->return_used) { + /* Save the return value from the previous method */ status = acpi_ds_result_push(return_desc, walk_state); @@ -397,18 +440,23 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state, } /* - * The following code is the - * optional support for a so-called "implicit return". Some AML code - * assumes that the last value of the method is "implicitly" returned - * to the caller. Just save the last result as the return value. + * The following code is the optional support for the so-called + * "implicit return". Some AML code assumes that the last value of the + * method is "implicitly" returned to the caller, in the absence of an + * explicit return value. + * + * Just save the last result of the method as the return value. + * * NOTE: this is optional because the ASL language does not actually * support this behavior. */ else if (!acpi_ds_do_implicit_return - (return_desc, walk_state, FALSE)) { + (return_desc, walk_state, FALSE) + || same_as_implicit_return) { /* * Delete the return value if it will not be used by the - * calling method + * calling method or remove one reference if the explicit return + * is the same as the implicit return value. */ acpi_ut_remove_reference(return_desc); } @@ -421,7 +469,8 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state, * * FUNCTION: acpi_ds_terminate_control_method * - * PARAMETERS: walk_state - State of the method + * PARAMETERS: method_desc - Method object + * walk_state - State associated with the method * * RETURN: None * @@ -431,95 +480,100 @@ acpi_ds_restart_control_method(struct acpi_walk_state *walk_state, * ******************************************************************************/ -void acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state) +void +acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, + struct acpi_walk_state *walk_state) { - union acpi_operand_object *obj_desc; struct acpi_namespace_node *method_node; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ds_terminate_control_method", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_terminate_control_method, walk_state); - if (!walk_state) { - return_VOID; - } + /* method_desc is required, walk_state is optional */ - /* The current method object was saved in the walk state */ - - obj_desc = walk_state->method_desc; - if (!obj_desc) { + if (!method_desc) { return_VOID; } - /* Delete all arguments and locals */ + if (walk_state) { - acpi_ds_method_data_delete_all(walk_state); + /* Delete all arguments and locals */ + + acpi_ds_method_data_delete_all(walk_state); + } /* * Lock the parser while we terminate this method. * If this is the last thread executing the method, * we have additional cleanup to perform */ - status = acpi_ut_acquire_mutex(ACPI_MTX_PARSER); + status = acpi_ut_acquire_mutex(ACPI_MTX_CONTROL_METHOD); if (ACPI_FAILURE(status)) { return_VOID; } /* Signal completion of the execution of this method if necessary */ - if (walk_state->method_desc->method.semaphore) { + if (method_desc->method.semaphore) { status = - acpi_os_signal_semaphore(walk_state->method_desc->method. - semaphore, 1); + acpi_os_signal_semaphore(method_desc->method.semaphore, 1); if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not signal method semaphore")); - /* Ignore error and continue cleanup */ + /* Ignore error and continue */ + + ACPI_EXCEPTION((AE_INFO, status, + "Could not signal method semaphore")); } } - /* - * There are no more threads executing this method. Perform - * additional cleanup. - * - * The method Node is stored in the walk state - */ - method_node = walk_state->method_node; + if (walk_state) { + /* + * Delete any objects created by this method during execution. + * The method Node is stored in the walk state + */ + method_node = walk_state->method_node; - /* Lock namespace for possible update */ + /* Lock namespace for possible update */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto exit; - } + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + goto exit; + } - /* - * Delete any namespace entries created immediately underneath - * the method - */ - if (method_node->child) { - acpi_ns_delete_namespace_subtree(method_node); + /* + * Delete any namespace entries created immediately underneath + * the method + */ + if (method_node && method_node->child) { + acpi_ns_delete_namespace_subtree(method_node); + } + + /* + * Delete any namespace entries created anywhere else within + * the namespace by the execution of this method + */ + acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id); + status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); } - /* - * Delete any namespace entries created anywhere else within - * the namespace by the execution of this method - */ - acpi_ns_delete_namespace_by_owner(walk_state->method_desc->method. - owner_id); - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + /* Decrement the thread count on the method */ + + if (method_desc->method.thread_count) { + method_desc->method.thread_count--; + } else { + ACPI_ERROR((AE_INFO, "Invalid zero thread count in method")); + } /* Are there any other threads currently executing this method? */ - if (walk_state->method_desc->method.thread_count) { + if (method_desc->method.thread_count) { /* * Additional threads. Do not release the owner_id in this case, * we immediately reuse it for the next thread executing this method */ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "*** Completed execution of one thread, %d threads remaining\n", - walk_state->method_desc->method. - thread_count)); + method_desc->method.thread_count)); } else { /* This is the only executing thread for this method */ @@ -533,22 +587,20 @@ void acpi_ds_terminate_control_method(struct acpi_walk_state *walk_state) * This code is here because we must wait until the last thread exits * before creating the synchronization semaphore. */ - if ((walk_state->method_desc->method.concurrency == 1) && - (!walk_state->method_desc->method.semaphore)) { + if ((method_desc->method.concurrency == 1) && + (!method_desc->method.semaphore)) { status = acpi_os_create_semaphore(1, 1, - &walk_state-> - method_desc->method. + &method_desc->method. semaphore); } /* No more threads, we can free the owner_id */ - acpi_ut_release_owner_id(&walk_state->method_desc->method. - owner_id); + acpi_ut_release_owner_id(&method_desc->method.owner_id); } exit: - (void)acpi_ut_release_mutex(ACPI_MTX_PARSER); + (void)acpi_ut_release_mutex(ACPI_MTX_CONTROL_METHOD); return_VOID; } @@ -581,7 +633,7 @@ acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node) union acpi_parse_object *op; struct acpi_walk_state *walk_state; - ACPI_FUNCTION_TRACE_PTR("ds_parse_method", node); + ACPI_FUNCTION_TRACE_PTR(ds_parse_method, node); /* Parameter Validation */ @@ -590,7 +642,7 @@ acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node) } ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "**** Parsing [%4.4s] **** named_obj=%p\n", + "**** Parsing [%4.4s] **** NamedObj=%p\n", acpi_ut_get_node_name(node), node)); /* Extract the method object from the method Node */ @@ -669,7 +721,7 @@ acpi_status acpi_ds_parse_method(struct acpi_namespace_node *node) } ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "**** [%4.4s] Parsed **** named_obj=%p Op=%p\n", + "**** [%4.4s] Parsed **** NamedObj=%p Op=%p\n", acpi_ut_get_node_name(node), node, op)); /* diff --git a/drivers/acpi/dispatcher/dsmthdat.c b/drivers/acpi/dispatcher/dsmthdat.c index c025674f938b..459160ff9058 100644 --- a/drivers/acpi/dispatcher/dsmthdat.c +++ b/drivers/acpi/dispatcher/dsmthdat.c @@ -81,7 +81,7 @@ acpi_ds_method_data_get_type(u16 opcode, * special data types. * * NOTES: walk_state fields are initialized to zero by the - * ACPI_MEM_CALLOCATE(). + * ACPI_ALLOCATE_ZEROED(). * * A pseudo-Namespace Node is assigned to each argument and local * so that ref_of() can return a pointer to the Node. @@ -92,7 +92,7 @@ void acpi_ds_method_data_init(struct acpi_walk_state *walk_state) { u32 i; - ACPI_FUNCTION_TRACE("ds_method_data_init"); + ACPI_FUNCTION_TRACE(ds_method_data_init); /* Init the method arguments */ @@ -100,10 +100,10 @@ void acpi_ds_method_data_init(struct acpi_walk_state *walk_state) ACPI_MOVE_32_TO_32(&walk_state->arguments[i].name, NAMEOF_ARG_NTE); walk_state->arguments[i].name.integer |= (i << 24); - walk_state->arguments[i].descriptor = ACPI_DESC_TYPE_NAMED; + walk_state->arguments[i].descriptor_type = ACPI_DESC_TYPE_NAMED; walk_state->arguments[i].type = ACPI_TYPE_ANY; - walk_state->arguments[i].flags = ANOBJ_END_OF_PEER_LIST | - ANOBJ_METHOD_ARG; + walk_state->arguments[i].flags = + ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_ARG; } /* Init the method locals */ @@ -113,11 +113,11 @@ void acpi_ds_method_data_init(struct acpi_walk_state *walk_state) NAMEOF_LOCAL_NTE); walk_state->local_variables[i].name.integer |= (i << 24); - walk_state->local_variables[i].descriptor = + walk_state->local_variables[i].descriptor_type = ACPI_DESC_TYPE_NAMED; walk_state->local_variables[i].type = ACPI_TYPE_ANY; - walk_state->local_variables[i].flags = ANOBJ_END_OF_PEER_LIST | - ANOBJ_METHOD_LOCAL; + walk_state->local_variables[i].flags = + ANOBJ_END_OF_PEER_LIST | ANOBJ_METHOD_LOCAL; } return_VOID; @@ -140,7 +140,7 @@ void acpi_ds_method_data_delete_all(struct acpi_walk_state *walk_state) { u32 index; - ACPI_FUNCTION_TRACE("ds_method_data_delete_all"); + ACPI_FUNCTION_TRACE(ds_method_data_delete_all); /* Detach the locals */ @@ -199,7 +199,7 @@ acpi_ds_method_data_init_args(union acpi_operand_object **params, acpi_status status; u32 index = 0; - ACPI_FUNCTION_TRACE_PTR("ds_method_data_init_args", params); + ACPI_FUNCTION_TRACE_PTR(ds_method_data_init_args, params); if (!params) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, @@ -251,7 +251,7 @@ acpi_ds_method_data_get_node(u16 opcode, struct acpi_walk_state *walk_state, struct acpi_namespace_node **node) { - ACPI_FUNCTION_TRACE("ds_method_data_get_node"); + ACPI_FUNCTION_TRACE(ds_method_data_get_node); /* * Method Locals and Arguments are supported @@ -318,10 +318,10 @@ acpi_ds_method_data_set_value(u16 opcode, acpi_status status; struct acpi_namespace_node *node; - ACPI_FUNCTION_TRACE("ds_method_data_set_value"); + ACPI_FUNCTION_TRACE(ds_method_data_set_value); ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "new_obj %p Opcode %X, Refs=%d [%s]\n", object, + "NewObj %p Opcode %X, Refs=%d [%s]\n", object, opcode, object->common.reference_count, acpi_ut_get_type_name(object->common.type))); @@ -336,7 +336,7 @@ acpi_ds_method_data_set_value(u16 opcode, * Increment ref count so object can't be deleted while installed. * NOTE: We do not copy the object in order to preserve the call by * reference semantics of ACPI Control Method invocation. - * (See ACPI specification 2.0_c) + * (See ACPI Specification 2.0_c) */ acpi_ut_add_reference(object); @@ -351,7 +351,7 @@ acpi_ds_method_data_set_value(u16 opcode, * FUNCTION: acpi_ds_method_data_get_value * * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP - * Index - which local_var or argument to get + * Index - Which local_var or argument to get * walk_state - Current walk state object * dest_desc - Where Arg or Local value is returned * @@ -372,7 +372,7 @@ acpi_ds_method_data_get_value(u16 opcode, struct acpi_namespace_node *node; union acpi_operand_object *object; - ACPI_FUNCTION_TRACE("ds_method_data_get_value"); + ACPI_FUNCTION_TRACE(ds_method_data_get_value); /* Validate the object descriptor */ @@ -459,7 +459,7 @@ acpi_ds_method_data_get_value(u16 opcode, * FUNCTION: acpi_ds_method_data_delete_value * * PARAMETERS: Opcode - Either AML_LOCAL_OP or AML_ARG_OP - * Index - which local_var or argument to delete + * Index - Which local_var or argument to delete * walk_state - Current walk state object * * RETURN: None @@ -477,7 +477,7 @@ acpi_ds_method_data_delete_value(u16 opcode, struct acpi_namespace_node *node; union acpi_operand_object *object; - ACPI_FUNCTION_TRACE("ds_method_data_delete_value"); + ACPI_FUNCTION_TRACE(ds_method_data_delete_value); /* Get the namespace node for the arg/local */ @@ -538,7 +538,7 @@ acpi_ds_store_object_to_local(u16 opcode, union acpi_operand_object *current_obj_desc; union acpi_operand_object *new_obj_desc; - ACPI_FUNCTION_TRACE("ds_store_object_to_local"); + ACPI_FUNCTION_TRACE(ds_store_object_to_local); ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Opcode=%X Index=%d Obj=%p\n", opcode, index, obj_desc)); @@ -614,7 +614,7 @@ acpi_ds_store_object_to_local(u16 opcode, && (current_obj_desc->reference.opcode == AML_REF_OF_OP)) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Arg (%p) is an obj_ref(Node), storing in node %p\n", + "Arg (%p) is an ObjRef(Node), storing in node %p\n", new_obj_desc, current_obj_desc)); @@ -688,7 +688,7 @@ acpi_ds_method_data_get_type(u16 opcode, struct acpi_namespace_node *node; union acpi_operand_object *object; - ACPI_FUNCTION_TRACE("ds_method_data_get_type"); + ACPI_FUNCTION_TRACE(ds_method_data_get_type); /* Get the namespace node for the arg/local */ @@ -701,6 +701,7 @@ acpi_ds_method_data_get_type(u16 opcode, object = acpi_ns_get_attached_object(node); if (!object) { + /* Uninitialized local/arg, return TYPE_ANY */ return_VALUE(ACPI_TYPE_ANY); diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c index 8b21f0f9e517..72190abb1d59 100644 --- a/drivers/acpi/dispatcher/dsobject.c +++ b/drivers/acpi/dispatcher/dsobject.c @@ -81,7 +81,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("ds_build_internal_object"); + ACPI_FUNCTION_TRACE(ds_build_internal_object); *obj_desc_ptr = NULL; if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { @@ -103,6 +103,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state, common. node))); if (ACPI_FAILURE(status)) { + /* Check if we are resolving a named reference within a package */ if ((status == AE_NOT_FOUND) @@ -186,7 +187,7 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state, union acpi_parse_object *byte_list; u32 byte_list_length = 0; - ACPI_FUNCTION_TRACE("ds_build_internal_buffer_obj"); + ACPI_FUNCTION_TRACE(ds_build_internal_buffer_obj); /* * If we are evaluating a Named buffer object "Name (xxxx, Buffer)". @@ -195,6 +196,7 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state, */ obj_desc = *obj_desc_ptr; if (!obj_desc) { + /* Create a new buffer object */ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); @@ -243,7 +245,7 @@ acpi_ds_build_internal_buffer_obj(struct acpi_walk_state *walk_state, "Buffer defined with zero length in AML, creating\n")); } else { obj_desc->buffer.pointer = - ACPI_MEM_CALLOCATE(obj_desc->buffer.length); + ACPI_ALLOCATE_ZEROED(obj_desc->buffer.length); if (!obj_desc->buffer.pointer) { acpi_ut_delete_object_desc(obj_desc); return_ACPI_STATUS(AE_NO_MEMORY); @@ -291,7 +293,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, acpi_status status = AE_OK; acpi_native_uint i; - ACPI_FUNCTION_TRACE("ds_build_internal_package_obj"); + ACPI_FUNCTION_TRACE(ds_build_internal_package_obj); /* Find the parent of a possibly nested package */ @@ -339,9 +341,10 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, * individual objects). Add an extra pointer slot so * that the list is always null terminated. */ - obj_desc->package.elements = ACPI_MEM_CALLOCATE(((acpi_size) obj_desc-> - package.count + - 1) * sizeof(void *)); + obj_desc->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) + obj_desc->package. + count + + 1) * sizeof(void *)); if (!obj_desc->package.elements) { acpi_ut_delete_object_desc(obj_desc); @@ -355,6 +358,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, arg = arg->common.next; for (i = 0; arg; i++) { if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { + /* Object (package or buffer) is already built */ obj_desc->package.elements[i] = @@ -396,7 +400,7 @@ acpi_ds_create_node(struct acpi_walk_state *walk_state, acpi_status status; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE_PTR("ds_create_node", op); + ACPI_FUNCTION_TRACE_PTR(ds_create_node, op); /* * Because of the execution pass through the non-control-method @@ -408,6 +412,7 @@ acpi_ds_create_node(struct acpi_walk_state *walk_state, } if (!op->common.value.arg) { + /* No arguments, there is nothing to do */ return_ACPI_STATUS(AE_OK); @@ -464,11 +469,12 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, union acpi_operand_object *obj_desc; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ds_init_object_from_op"); + ACPI_FUNCTION_TRACE(ds_init_object_from_op); obj_desc = *ret_obj_desc; op_info = acpi_ps_get_opcode_info(opcode); if (op_info->class == AML_CLASS_UNKNOWN) { + /* Unknown opcode */ return_ACPI_STATUS(AE_TYPE); @@ -626,6 +632,7 @@ acpi_ds_init_object_from_op(struct acpi_walk_state *walk_state, default: /* Other literals, etc.. */ if (op->common.aml_opcode == AML_INT_NAMEPATH_OP) { + /* Node was saved in Op */ obj_desc->reference.node = op->common.node; diff --git a/drivers/acpi/dispatcher/dsopcode.c b/drivers/acpi/dispatcher/dsopcode.c index 6229c10674e1..5b974a8fe614 100644 --- a/drivers/acpi/dispatcher/dsopcode.c +++ b/drivers/acpi/dispatcher/dsopcode.c @@ -91,7 +91,7 @@ acpi_ds_execute_arguments(struct acpi_namespace_node *node, union acpi_parse_object *op; struct acpi_walk_state *walk_state; - ACPI_FUNCTION_TRACE("ds_execute_arguments"); + ACPI_FUNCTION_TRACE(ds_execute_arguments); /* * Allocate a new parser op to be the root of the parsed tree @@ -193,7 +193,7 @@ acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc) struct acpi_namespace_node *node; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ds_get_buffer_field_arguments", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_field_arguments, obj_desc); if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { return_ACPI_STATUS(AE_OK); @@ -206,7 +206,7 @@ acpi_ds_get_buffer_field_arguments(union acpi_operand_object *obj_desc) ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname (ACPI_TYPE_BUFFER_FIELD, node, NULL)); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] buffer_field Arg Init\n", + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] BufferField Arg Init\n", acpi_ut_get_node_name(node))); /* Execute the AML code for the term_arg arguments */ @@ -235,7 +235,7 @@ acpi_status acpi_ds_get_buffer_arguments(union acpi_operand_object *obj_desc) struct acpi_namespace_node *node; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ds_get_buffer_arguments", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ds_get_buffer_arguments, obj_desc); if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { return_ACPI_STATUS(AE_OK); @@ -279,7 +279,7 @@ acpi_status acpi_ds_get_package_arguments(union acpi_operand_object *obj_desc) struct acpi_namespace_node *node; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ds_get_package_arguments", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ds_get_package_arguments, obj_desc); if (obj_desc->common.flags & AOPOBJ_DATA_VALID) { return_ACPI_STATUS(AE_OK); @@ -324,7 +324,7 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc) acpi_status status; union acpi_operand_object *extra_desc; - ACPI_FUNCTION_TRACE_PTR("ds_get_region_arguments", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ds_get_region_arguments, obj_desc); if (obj_desc->region.flags & AOPOBJ_DATA_VALID) { return_ACPI_STATUS(AE_OK); @@ -342,8 +342,7 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc) ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname (ACPI_TYPE_REGION, node, NULL)); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[%4.4s] op_region Arg Init at AML %p\n", + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "[%4.4s] OpRegion Arg Init at AML %p\n", acpi_ut_get_node_name(node), extra_desc->extra.aml_start)); @@ -352,6 +351,28 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc) status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), extra_desc->extra.aml_length, extra_desc->extra.aml_start); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Validate the region address/length via the host OS */ + + status = acpi_os_validate_address(obj_desc->region.space_id, + obj_desc->region.address, + (acpi_size) obj_desc->region.length); + if (ACPI_FAILURE(status)) { + /* + * Invalid address/length. We will emit an error message and mark + * the region as invalid, so that it will cause an additional error if + * it is ever used. Then return AE_OK. + */ + ACPI_EXCEPTION((AE_INFO, status, + "During address validation of OpRegion [%4.4s]", + node->name.ascii)); + obj_desc->common.flags |= AOPOBJ_INVALID; + status = AE_OK; + } + return_ACPI_STATUS(status); } @@ -411,7 +432,7 @@ acpi_ds_init_buffer_field(u16 aml_opcode, u8 field_flags; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ds_init_buffer_field", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ds_init_buffer_field, obj_desc); /* Host object must be a Buffer */ @@ -457,7 +478,7 @@ acpi_ds_init_buffer_field(u16 aml_opcode, if (bit_count == 0) { ACPI_ERROR((AE_INFO, - "Attempt to create_field of length zero")); + "Attempt to CreateField of length zero")); status = AE_AML_OPERAND_VALUE; goto cleanup; } @@ -595,7 +616,7 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state, struct acpi_namespace_node *node; union acpi_parse_object *next_op; - ACPI_FUNCTION_TRACE_PTR("ds_eval_buffer_field_operands", op); + ACPI_FUNCTION_TRACE_PTR(ds_eval_buffer_field_operands, op); /* * This is where we evaluate the address and length fields of the @@ -627,7 +648,7 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state, ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE, acpi_ps_get_opcode_name(op->common.aml_opcode), walk_state->num_operands, - "after acpi_ex_resolve_operands"); + "after AcpiExResolveOperands"); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, "(%s) bad operand(s) (%X)", @@ -640,6 +661,7 @@ acpi_ds_eval_buffer_field_operands(struct acpi_walk_state *walk_state, /* Initialize the Buffer Field */ if (op->common.aml_opcode == AML_CREATE_FIELD_OP) { + /* NOTE: Slightly different operands for this opcode */ status = @@ -685,7 +707,7 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state, struct acpi_namespace_node *node; union acpi_parse_object *next_op; - ACPI_FUNCTION_TRACE_PTR("ds_eval_region_operands", op); + ACPI_FUNCTION_TRACE_PTR(ds_eval_region_operands, op); /* * This is where we evaluate the address and length fields of the @@ -718,7 +740,7 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state, ACPI_DUMP_OPERANDS(ACPI_WALK_OPERANDS, ACPI_IMODE_EXECUTE, acpi_ps_get_opcode_name(op->common.aml_opcode), - 1, "after acpi_ex_resolve_operands"); + 1, "after AcpiExResolveOperands"); obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { @@ -744,7 +766,7 @@ acpi_ds_eval_region_operands(struct acpi_walk_state *walk_state, operand_desc->integer.value; acpi_ut_remove_reference(operand_desc); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "rgn_obj %p Addr %8.8X%8.8X Len %X\n", + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "RgnObj %p Addr %8.8X%8.8X Len %X\n", obj_desc, ACPI_FORMAT_UINT64(obj_desc->region.address), obj_desc->region.length)); @@ -780,7 +802,7 @@ acpi_ds_eval_data_object_operands(struct acpi_walk_state *walk_state, union acpi_operand_object *arg_desc; u32 length; - ACPI_FUNCTION_TRACE("ds_eval_data_object_operands"); + ACPI_FUNCTION_TRACE(ds_eval_data_object_operands); /* The first operand (for all of these data objects) is the length */ @@ -874,7 +896,7 @@ acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state, acpi_status status = AE_OK; union acpi_generic_state *control_state; - ACPI_FUNCTION_NAME("ds_exec_begin_control_op"); + ACPI_FUNCTION_NAME(ds_exec_begin_control_op); ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p Opcode=%2.2X State=%p\n", op, op->common.aml_opcode, walk_state)); @@ -952,7 +974,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, acpi_status status = AE_OK; union acpi_generic_state *control_state; - ACPI_FUNCTION_NAME("ds_exec_end_control_op"); + ACPI_FUNCTION_NAME(ds_exec_end_control_op); switch (op->common.aml_opcode) { case AML_IF_OP: @@ -984,6 +1006,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "[WHILE_OP] Op=%p\n", op)); if (walk_state->control_state->common.value) { + /* Predicate was true, go back and evaluate it again! */ status = AE_CTRL_PENDING; @@ -1014,6 +1037,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, * has been bubbled up the tree */ if (op->common.value.arg) { + /* Since we have a real Return(), delete any implicit return */ acpi_ds_clear_implicit_return(walk_state); @@ -1047,6 +1071,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, walk_state->return_desc = walk_state->operands[0]; } else if ((walk_state->results) && (walk_state->results->results.num_results > 0)) { + /* Since we have a real Return(), delete any implicit return */ acpi_ds_clear_implicit_return(walk_state); @@ -1095,7 +1120,7 @@ acpi_ds_exec_end_control_op(struct acpi_walk_state * walk_state, } ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Completed RETURN_OP State=%p, ret_val=%p\n", + "Completed RETURN_OP State=%p, RetVal=%p\n", walk_state, walk_state->return_desc)); /* End the control method execution right now */ diff --git a/drivers/acpi/dispatcher/dsutils.c b/drivers/acpi/dispatcher/dsutils.c index 53356a591ac1..05230baf5de8 100644 --- a/drivers/acpi/dispatcher/dsutils.c +++ b/drivers/acpi/dispatcher/dsutils.c @@ -68,7 +68,7 @@ ACPI_MODULE_NAME("dsutils") ******************************************************************************/ void acpi_ds_clear_implicit_return(struct acpi_walk_state *walk_state) { - ACPI_FUNCTION_NAME("ds_clear_implicit_return"); + ACPI_FUNCTION_NAME(ds_clear_implicit_return); /* * Slack must be enabled for this feature @@ -115,7 +115,7 @@ u8 acpi_ds_do_implicit_return(union acpi_operand_object *return_desc, struct acpi_walk_state *walk_state, u8 add_reference) { - ACPI_FUNCTION_NAME("ds_do_implicit_return"); + ACPI_FUNCTION_NAME(ds_do_implicit_return); /* * Slack must be enabled for this feature, and we must @@ -171,7 +171,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op, { const struct acpi_opcode_info *parent_info; - ACPI_FUNCTION_TRACE_PTR("ds_is_result_used", op); + ACPI_FUNCTION_TRACE_PTR(ds_is_result_used, op); /* Must have both an Op and a Result Object */ @@ -202,6 +202,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op, */ if ((!op->common.parent) || (op->common.parent->common.aml_opcode == AML_SCOPE_OP)) { + /* No parent, the return value cannot possibly be used */ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, @@ -340,7 +341,7 @@ acpi_ds_delete_result_if_not_used(union acpi_parse_object *op, union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ds_delete_result_if_not_used", result_obj); + ACPI_FUNCTION_TRACE_PTR(ds_delete_result_if_not_used, result_obj); if (!op) { ACPI_ERROR((AE_INFO, "Null Op")); @@ -352,6 +353,7 @@ acpi_ds_delete_result_if_not_used(union acpi_parse_object *op, } if (!acpi_ds_is_result_used(op, walk_state)) { + /* Must pop the result stack (obj_desc should be equal to result_obj) */ status = acpi_ds_result_pop(&obj_desc, walk_state); @@ -382,7 +384,7 @@ acpi_status acpi_ds_resolve_operands(struct acpi_walk_state *walk_state) u32 i; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_PTR("ds_resolve_operands", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_resolve_operands, walk_state); /* * Attempt to resolve each of the valid operands @@ -417,7 +419,7 @@ void acpi_ds_clear_operands(struct acpi_walk_state *walk_state) { u32 i; - ACPI_FUNCTION_TRACE_PTR("ds_clear_operands", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_clear_operands, walk_state); /* Remove a reference on each operand on the stack */ @@ -465,7 +467,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state, acpi_interpreter_mode interpreter_mode; const struct acpi_opcode_info *op_info; - ACPI_FUNCTION_TRACE_PTR("ds_create_operand", arg); + ACPI_FUNCTION_TRACE_PTR(ds_create_operand, arg); /* A valid name must be looked up in the namespace */ @@ -498,7 +500,9 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state, */ if ((walk_state->deferred_node) && (walk_state->deferred_node->type == ACPI_TYPE_BUFFER_FIELD) - && (arg_index != 0)) { + && (arg_index == + (u32) ((walk_state->opcode == + AML_CREATE_FIELD_OP) ? 3 : 2))) { obj_desc = ACPI_CAST_PTR(union acpi_operand_object, walk_state->deferred_node); @@ -521,6 +525,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state, && (parent_op->common.aml_opcode != AML_REGION_OP) && (parent_op->common.aml_opcode != AML_INT_NAMEPATH_OP)) { + /* Enter name into namespace if not found */ interpreter_mode = ACPI_IMODE_LOAD_PASS2; @@ -572,7 +577,7 @@ acpi_ds_create_operand(struct acpi_walk_state *walk_state, /* Free the namestring created above */ - ACPI_MEM_FREE(name_string); + ACPI_FREE(name_string); /* Check status from the lookup */ @@ -696,7 +701,7 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, union acpi_parse_object *arg; u32 arg_count = 0; - ACPI_FUNCTION_TRACE_PTR("ds_create_operands", first_arg); + ACPI_FUNCTION_TRACE_PTR(ds_create_operands, first_arg); /* For all arguments in the list... */ diff --git a/drivers/acpi/dispatcher/dswexec.c b/drivers/acpi/dispatcher/dswexec.c index f1af655ff113..3acbd9145d72 100644 --- a/drivers/acpi/dispatcher/dswexec.c +++ b/drivers/acpi/dispatcher/dswexec.c @@ -49,7 +49,6 @@ #include <acpi/acinterp.h> #include <acpi/acnamesp.h> #include <acpi/acdebug.h> -#include <acpi/acdisasm.h> #define _COMPONENT ACPI_DISPATCHER ACPI_MODULE_NAME("dswexec") @@ -93,7 +92,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, union acpi_operand_object *obj_desc; union acpi_operand_object *local_obj_desc = NULL; - ACPI_FUNCTION_TRACE_PTR("ds_get_predicate_value", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_get_predicate_value, walk_state); walk_state->control_state->common.state = 0; @@ -123,7 +122,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, if (!obj_desc) { ACPI_ERROR((AE_INFO, - "No predicate obj_desc=%p State=%p", + "No predicate ObjDesc=%p State=%p", obj_desc, walk_state)); return_ACPI_STATUS(AE_AML_NO_OPERAND); @@ -140,7 +139,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state, if (ACPI_GET_OBJECT_TYPE(local_obj_desc) != ACPI_TYPE_INTEGER) { ACPI_ERROR((AE_INFO, - "Bad predicate (not an integer) obj_desc=%p State=%p Type=%X", + "Bad predicate (not an integer) ObjDesc=%p State=%p Type=%X", obj_desc, walk_state, ACPI_GET_OBJECT_TYPE(obj_desc))); @@ -214,7 +213,7 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, acpi_status status = AE_OK; u32 opcode_class; - ACPI_FUNCTION_TRACE_PTR("ds_exec_begin_op", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_exec_begin_op, walk_state); op = walk_state->op; if (!op) { @@ -296,7 +295,7 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state, case AML_CLASS_NAMED_OBJECT: - if (walk_state->walk_type == ACPI_WALK_METHOD) { + if (walk_state->walk_type & ACPI_WALK_METHOD) { /* * Found a named object declaration during method execution; * we must enter this object into the namespace. The created @@ -354,7 +353,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) union acpi_parse_object *next_op; union acpi_parse_object *first_arg; - ACPI_FUNCTION_TRACE_PTR("ds_exec_end_op", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_exec_end_op, walk_state); op = walk_state->op; op_type = walk_state->op_info->type; @@ -409,6 +408,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) * being the object_type and size_of operators. */ if (!(walk_state->op_info->flags & AML_NO_OPERAND_RESOLVE)) { + /* Resolve all operands */ status = acpi_ex_resolve_operands(walk_state->opcode, @@ -423,7 +423,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) acpi_ps_get_opcode_name (walk_state->opcode), walk_state->num_operands, - "after ex_resolve_operands"); + "after ExResolveOperands"); } } @@ -437,7 +437,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) acpi_gbl_op_type_dispatch[op_type] (walk_state); } else { /* - * Treat constructs of the form "Store(local_x,local_x)" as noops when the + * Treat constructs of the form "Store(LocalX,LocalX)" as noops when the * Local is uninitialized. */ if ((status == AE_AML_UNINITIALIZED_LOCAL) && @@ -548,6 +548,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) */ status = acpi_ds_resolve_operands(walk_state); if (ACPI_FAILURE(status)) { + /* On error, clear all resolved operands */ acpi_ds_clear_operands(walk_state); @@ -569,7 +570,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) case AML_TYPE_CREATE_FIELD: ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Executing create_field Buffer/Index Op=%p\n", + "Executing CreateField Buffer/Index Op=%p\n", op)); status = acpi_ds_load2_end_op(walk_state); @@ -584,7 +585,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) case AML_TYPE_CREATE_OBJECT: ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Executing create_object (Buffer/Package) Op=%p\n", + "Executing CreateObject (Buffer/Package) Op=%p\n", op)); switch (op->common.parent->common.aml_opcode) { @@ -657,7 +658,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) if (op->common.aml_opcode == AML_REGION_OP) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Executing op_region Address/Length Op=%p\n", + "Executing OpRegion Address/Length Op=%p\n", op)); status = @@ -722,6 +723,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state) cleanup: if (walk_state->result_obj) { + /* Break to debugger to display result */ ACPI_DEBUGGER_EXEC(acpi_db_display_result_object diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c index d3d24da31c81..35074399c617 100644 --- a/drivers/acpi/dispatcher/dswload.c +++ b/drivers/acpi/dispatcher/dswload.c @@ -127,7 +127,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, char *path; u32 flags; - ACPI_FUNCTION_TRACE("ds_load1_begin_op"); + ACPI_FUNCTION_TRACE(ds_load1_begin_op); op = walk_state->op; ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, @@ -178,12 +178,12 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, * Target of Scope() not found. Generate an External for it, and * insert the name into the namespace. */ - acpi_dm_add_to_external_list(path); + acpi_dm_add_to_external_list(path, ACPI_TYPE_DEVICE, 0); status = acpi_ns_lookup(walk_state->scope_info, path, object_type, ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, walk_state, - &(node)); + &node); } #endif if (ACPI_FAILURE(status)) { @@ -261,6 +261,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, */ if (walk_state->deferred_node) { + /* This name is already in the namespace, get the node */ node = walk_state->deferred_node; @@ -300,10 +301,41 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, status = acpi_ns_lookup(walk_state->scope_info, path, object_type, ACPI_IMODE_LOAD_PASS1, flags, walk_state, - &(node)); + &node); if (ACPI_FAILURE(status)) { - ACPI_ERROR_NAMESPACE(path, status); - return_ACPI_STATUS(status); + if (status == AE_ALREADY_EXISTS) { + + /* The name already exists in this scope */ + + if (node->flags & ANOBJ_IS_EXTERNAL) { + /* + * Allow one create on an object or segment that was + * previously declared External + */ + node->flags &= ~ANOBJ_IS_EXTERNAL; + node->type = (u8) object_type; + + /* Just retyped a node, probably will need to open a scope */ + + if (acpi_ns_opens_scope(object_type)) { + status = + acpi_ds_scope_stack_push + (node, object_type, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS + (status); + } + } + status = AE_OK; + } + } + + if (ACPI_FAILURE(status)) { + + ACPI_ERROR_NAMESPACE(path, status); + return_ACPI_STATUS(status); + } } break; } @@ -311,6 +343,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, /* Common exit */ if (!op) { + /* Create a new op */ op = acpi_ps_alloc_op(walk_state->opcode); @@ -359,7 +392,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) acpi_object_type object_type; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ds_load1_end_op"); + ACPI_FUNCTION_TRACE(ds_load1_end_op); op = walk_state->op; ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, @@ -413,6 +446,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) #endif if (op->common.aml_opcode == AML_NAME_OP) { + /* For Name opcode, get the object type from the argument */ if (op->common.value.arg) { @@ -445,7 +479,7 @@ acpi_status acpi_ds_load1_end_op(struct acpi_walk_state *walk_state) * arguments.) */ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "LOADING-Method: State=%p Op=%p named_obj=%p\n", + "LOADING-Method: State=%p Op=%p NamedObj=%p\n", walk_state, op, op->named.node)); if (!acpi_ns_get_attached_object(op->named.node)) { @@ -511,7 +545,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, acpi_object_type object_type; char *buffer_ptr; - ACPI_FUNCTION_TRACE("ds_load2_begin_op"); + ACPI_FUNCTION_TRACE(ds_load2_begin_op); op = walk_state->op; ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Op=%p State=%p\n", op, @@ -521,6 +555,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, if ((walk_state->control_state) && (walk_state->control_state->common.state == ACPI_CONTROL_CONDITIONAL_EXECUTING)) { + /* We are executing a while loop outside of a method */ status = acpi_ds_exec_begin_op(walk_state, out_op); @@ -554,10 +589,12 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, /* Get the name we are going to enter or lookup in the namespace */ if (walk_state->opcode == AML_INT_NAMEPATH_OP) { + /* For Namepath op, get the path string */ buffer_ptr = op->common.value.string; if (!buffer_ptr) { + /* No name, just exit */ return_ACPI_STATUS(AE_OK); @@ -680,6 +717,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, /* All other opcodes */ if (op && op->common.node) { + /* This op/node was previously entered into the namespace */ node = op->common.node; @@ -705,6 +743,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, * Note: Name may already exist if we are executing a deferred opcode. */ if (walk_state->deferred_node) { + /* This name is already in the namespace, get the node */ node = walk_state->deferred_node; @@ -727,6 +766,7 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, } if (!op) { + /* Create a new op */ op = acpi_ps_alloc_op(walk_state->opcode); @@ -776,7 +816,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) u32 i; #endif - ACPI_FUNCTION_TRACE("ds_load2_end_op"); + ACPI_FUNCTION_TRACE(ds_load2_end_op); op = walk_state->op; ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "Opcode [%s] Op %p State %p\n", @@ -870,7 +910,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) */ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Create-Load [%s] State=%p Op=%p named_obj=%p\n", + "Create-Load [%s] State=%p Op=%p NamedObj=%p\n", acpi_ps_get_opcode_name(op->common.aml_opcode), walk_state, op, node)); @@ -1045,7 +1085,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) * arguments.) */ ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "LOADING-Method: State=%p Op=%p named_obj=%p\n", + "LOADING-Method: State=%p Op=%p NamedObj=%p\n", walk_state, op, op->named.node)); if (!acpi_ns_get_attached_object(op->named.node)) { @@ -1090,7 +1130,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) case AML_CLASS_METHOD_CALL: ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "RESOLVING-method_call: State=%p Op=%p named_obj=%p\n", + "RESOLVING-MethodCall: State=%p Op=%p NamedObj=%p\n", walk_state, op, node)); /* @@ -1104,7 +1144,6 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) ACPI_NS_DONT_OPEN_SCOPE, walk_state, &(new_node)); if (ACPI_SUCCESS(status)) { - /* * Make sure that what we found is indeed a method * We didn't search for a method on purpose, to see if the name diff --git a/drivers/acpi/dispatcher/dswscope.c b/drivers/acpi/dispatcher/dswscope.c index ada21ef4a174..c9228972f5f6 100644 --- a/drivers/acpi/dispatcher/dswscope.c +++ b/drivers/acpi/dispatcher/dswscope.c @@ -63,9 +63,10 @@ void acpi_ds_scope_stack_clear(struct acpi_walk_state *walk_state) { union acpi_generic_state *scope_info; - ACPI_FUNCTION_NAME("ds_scope_stack_clear"); + ACPI_FUNCTION_NAME(ds_scope_stack_clear); while (walk_state->scope_info) { + /* Pop a scope off the stack */ scope_info = walk_state->scope_info; @@ -102,9 +103,10 @@ acpi_ds_scope_stack_push(struct acpi_namespace_node *node, union acpi_generic_state *scope_info; union acpi_generic_state *old_scope_info; - ACPI_FUNCTION_TRACE("ds_scope_stack_push"); + ACPI_FUNCTION_TRACE(ds_scope_stack_push); if (!node) { + /* Invalid scope */ ACPI_ERROR((AE_INFO, "Null scope parameter")); @@ -126,7 +128,7 @@ acpi_ds_scope_stack_push(struct acpi_namespace_node *node, /* Init new scope object */ - scope_info->common.data_type = ACPI_DESC_TYPE_STATE_WSCOPE; + scope_info->common.descriptor_type = ACPI_DESC_TYPE_STATE_WSCOPE; scope_info->scope.node = node; scope_info->common.value = (u16) type; @@ -176,7 +178,7 @@ acpi_status acpi_ds_scope_stack_pop(struct acpi_walk_state *walk_state) union acpi_generic_state *scope_info; union acpi_generic_state *new_scope_info; - ACPI_FUNCTION_TRACE("ds_scope_stack_pop"); + ACPI_FUNCTION_TRACE(ds_scope_stack_pop); /* * Pop scope info object off the stack. diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c index fa78cb74ee36..7817e5522679 100644 --- a/drivers/acpi/dispatcher/dswstate.c +++ b/drivers/acpi/dispatcher/dswstate.c @@ -66,7 +66,6 @@ void *acpi_ds_obj_stack_get_value(u32 index, #endif #ifdef ACPI_FUTURE_USAGE - /******************************************************************************* * * FUNCTION: acpi_ds_result_remove @@ -88,7 +87,7 @@ acpi_ds_result_remove(union acpi_operand_object **object, { union acpi_generic_state *state; - ACPI_FUNCTION_NAME("ds_result_remove"); + ACPI_FUNCTION_NAME(ds_result_remove); state = walk_state->results; if (!state) { @@ -128,7 +127,6 @@ acpi_ds_result_remove(union acpi_operand_object **object, return (AE_OK); } - #endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* @@ -152,7 +150,7 @@ acpi_ds_result_pop(union acpi_operand_object ** object, acpi_native_uint index; union acpi_generic_state *state; - ACPI_FUNCTION_NAME("ds_result_pop"); + ACPI_FUNCTION_NAME(ds_result_pop); state = walk_state->results; if (!state) { @@ -170,6 +168,7 @@ acpi_ds_result_pop(union acpi_operand_object ** object, state->results.num_results--; for (index = ACPI_OBJ_NUM_OPERANDS; index; index--) { + /* Check for a valid result object */ if (state->results.obj_desc[index - 1]) { @@ -213,7 +212,7 @@ acpi_ds_result_pop_from_bottom(union acpi_operand_object ** object, acpi_native_uint index; union acpi_generic_state *state; - ACPI_FUNCTION_NAME("ds_result_pop_from_bottom"); + ACPI_FUNCTION_NAME(ds_result_pop_from_bottom); state = walk_state->results; if (!state) { @@ -278,7 +277,7 @@ acpi_ds_result_push(union acpi_operand_object * object, { union acpi_generic_state *state; - ACPI_FUNCTION_NAME("ds_result_push"); + ACPI_FUNCTION_NAME(ds_result_push); state = walk_state->results; if (!state) { @@ -331,14 +330,14 @@ acpi_status acpi_ds_result_stack_push(struct acpi_walk_state * walk_state) { union acpi_generic_state *state; - ACPI_FUNCTION_NAME("ds_result_stack_push"); + ACPI_FUNCTION_NAME(ds_result_stack_push); state = acpi_ut_create_generic_state(); if (!state) { return (AE_NO_MEMORY); } - state->common.data_type = ACPI_DESC_TYPE_STATE_RESULT; + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_RESULT; acpi_ut_push_generic_state(&walk_state->results, state); ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Results=%p State=%p\n", @@ -363,7 +362,7 @@ acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state * walk_state) { union acpi_generic_state *state; - ACPI_FUNCTION_NAME("ds_result_stack_pop"); + ACPI_FUNCTION_NAME(ds_result_stack_pop); /* Check for stack underflow */ @@ -376,7 +375,7 @@ acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state * walk_state) state = acpi_ut_pop_generic_state(&walk_state->results); ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Result=%p remaining_results=%X State=%p\n", + "Result=%p RemainingResults=%X State=%p\n", state, state->results.num_results, walk_state)); acpi_ut_delete_generic_state(state); @@ -400,7 +399,7 @@ acpi_status acpi_ds_result_stack_pop(struct acpi_walk_state * walk_state) acpi_status acpi_ds_obj_stack_push(void *object, struct acpi_walk_state * walk_state) { - ACPI_FUNCTION_NAME("ds_obj_stack_push"); + ACPI_FUNCTION_NAME(ds_obj_stack_push); /* Check for stack overflow */ @@ -445,9 +444,10 @@ acpi_ds_obj_stack_pop(u32 pop_count, struct acpi_walk_state * walk_state) { u32 i; - ACPI_FUNCTION_NAME("ds_obj_stack_pop"); + ACPI_FUNCTION_NAME(ds_obj_stack_pop); for (i = 0; i < pop_count; i++) { + /* Check for stack underflow */ if (walk_state->num_operands == 0) { @@ -491,9 +491,10 @@ acpi_ds_obj_stack_pop_and_delete(u32 pop_count, u32 i; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_NAME("ds_obj_stack_pop_and_delete"); + ACPI_FUNCTION_NAME(ds_obj_stack_pop_and_delete); for (i = 0; i < pop_count; i++) { + /* Check for stack underflow */ if (walk_state->num_operands == 0) { @@ -538,13 +539,13 @@ acpi_ds_obj_stack_pop_and_delete(u32 pop_count, struct acpi_walk_state *acpi_ds_get_current_walk_state(struct acpi_thread_state *thread) { - ACPI_FUNCTION_NAME("ds_get_current_walk_state"); + ACPI_FUNCTION_NAME(ds_get_current_walk_state); if (!thread) { return (NULL); } - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Current walk_state %p\n", + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Current WalkState %p\n", thread->walk_state_list)); return (thread->walk_state_list); @@ -567,7 +568,7 @@ void acpi_ds_push_walk_state(struct acpi_walk_state *walk_state, struct acpi_thread_state *thread) { - ACPI_FUNCTION_TRACE("ds_push_walk_state"); + ACPI_FUNCTION_TRACE(ds_push_walk_state); walk_state->next = thread->walk_state_list; thread->walk_state_list = walk_state; @@ -593,11 +594,12 @@ struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread) { struct acpi_walk_state *walk_state; - ACPI_FUNCTION_TRACE("ds_pop_walk_state"); + ACPI_FUNCTION_TRACE(ds_pop_walk_state); walk_state = thread->walk_state_list; if (walk_state) { + /* Next walk state becomes the current walk state */ thread->walk_state_list = walk_state->next; @@ -618,7 +620,7 @@ struct acpi_walk_state *acpi_ds_pop_walk_state(struct acpi_thread_state *thread) * * PARAMETERS: owner_id - ID for object creation * Origin - Starting point for this walk - * mth_desc - Method object + * method_desc - Method object * Thread - Current thread state * * RETURN: Pointer to the new walk state. @@ -632,24 +634,24 @@ struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, union acpi_parse_object *origin, union acpi_operand_object - *mth_desc, + *method_desc, struct acpi_thread_state *thread) { struct acpi_walk_state *walk_state; acpi_status status; - ACPI_FUNCTION_TRACE("ds_create_walk_state"); + ACPI_FUNCTION_TRACE(ds_create_walk_state); - walk_state = ACPI_MEM_CALLOCATE(sizeof(struct acpi_walk_state)); + walk_state = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_walk_state)); if (!walk_state) { return_PTR(NULL); } - walk_state->data_type = ACPI_DESC_TYPE_WALK; + walk_state->descriptor_type = ACPI_DESC_TYPE_WALK; + walk_state->method_desc = method_desc; walk_state->owner_id = owner_id; walk_state->origin = origin; - walk_state->method_desc = mth_desc; walk_state->thread = thread; walk_state->parser_state.start_op = origin; @@ -664,7 +666,7 @@ struct acpi_walk_state *acpi_ds_create_walk_state(acpi_owner_id owner_id, status = acpi_ds_result_stack_push(walk_state); if (ACPI_FAILURE(status)) { - ACPI_MEM_FREE(walk_state); + ACPI_FREE(walk_state); return_PTR(NULL); } @@ -701,13 +703,13 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state, struct acpi_namespace_node *method_node, u8 * aml_start, u32 aml_length, - struct acpi_parameter_info *info, u8 pass_number) + struct acpi_evaluate_info *info, u8 pass_number) { acpi_status status; struct acpi_parse_state *parser_state = &walk_state->parser_state; union acpi_parse_object *extra_op; - ACPI_FUNCTION_TRACE("ds_init_aml_walk"); + ACPI_FUNCTION_TRACE(ds_init_aml_walk); walk_state->parser_state.aml = walk_state->parser_state.aml_start = aml_start; @@ -778,6 +780,7 @@ acpi_ds_init_aml_walk(struct acpi_walk_state *walk_state, } if (parser_state->start_node) { + /* Push start scope on scope stack and make it current */ status = @@ -810,21 +813,24 @@ void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state) { union acpi_generic_state *state; - ACPI_FUNCTION_TRACE_PTR("ds_delete_walk_state", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_delete_walk_state, walk_state); if (!walk_state) { return; } - if (walk_state->data_type != ACPI_DESC_TYPE_WALK) { + if (walk_state->descriptor_type != ACPI_DESC_TYPE_WALK) { ACPI_ERROR((AE_INFO, "%p is not a valid walk state", walk_state)); return; } + /* There should not be any open scopes */ + if (walk_state->parser_state.scope) { ACPI_ERROR((AE_INFO, "%p walk still has a scope list", walk_state)); + acpi_ps_cleanup_scope(&walk_state->parser_state); } /* Always must free any linked control states */ @@ -854,7 +860,7 @@ void acpi_ds_delete_walk_state(struct acpi_walk_state *walk_state) acpi_ut_delete_generic_state(state); } - ACPI_MEM_FREE(walk_state); + ACPI_FREE(walk_state); return_VOID; } @@ -879,7 +885,7 @@ acpi_ds_result_insert(void *object, { union acpi_generic_state *state; - ACPI_FUNCTION_NAME("ds_result_insert"); + ACPI_FUNCTION_NAME(ds_result_insert); state = walk_state->results; if (!state) { @@ -937,7 +943,7 @@ acpi_status acpi_ds_obj_stack_delete_all(struct acpi_walk_state * walk_state) { u32 i; - ACPI_FUNCTION_TRACE_PTR("ds_obj_stack_delete_all", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_obj_stack_delete_all, walk_state); /* The stack size is configurable, but fixed */ @@ -969,7 +975,7 @@ acpi_status acpi_ds_obj_stack_pop_object(union acpi_operand_object **object, struct acpi_walk_state *walk_state) { - ACPI_FUNCTION_NAME("ds_obj_stack_pop_object"); + ACPI_FUNCTION_NAME(ds_obj_stack_pop_object); /* Check for stack underflow */ @@ -1025,7 +1031,7 @@ acpi_ds_obj_stack_pop_object(union acpi_operand_object **object, void *acpi_ds_obj_stack_get_value(u32 index, struct acpi_walk_state *walk_state) { - ACPI_FUNCTION_TRACE_PTR("ds_obj_stack_get_value", walk_state); + ACPI_FUNCTION_TRACE_PTR(ds_obj_stack_get_value, walk_state); /* Can't do it if the stack is empty */ diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index eee0864ba300..18b3ea9dace2 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -116,7 +116,7 @@ union acpi_ec { struct acpi_generic_address command_addr; struct acpi_generic_address data_addr; unsigned long global_lock; - spinlock_t lock; + struct semaphore sem; } poll; }; @@ -323,7 +323,6 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data) { acpi_status status = AE_OK; int result = 0; - unsigned long flags = 0; u32 glk = 0; ACPI_FUNCTION_TRACE("acpi_ec_read"); @@ -339,8 +338,11 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data) return_VALUE(-ENODEV); } - spin_lock_irqsave(&ec->poll.lock, flags); - + if (down_interruptible(&ec->poll.sem)) { + result = -ERESTARTSYS; + goto end_nosem; + } + acpi_hw_low_level_write(8, ACPI_EC_COMMAND_READ, &ec->common.command_addr); result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); @@ -358,8 +360,8 @@ static int acpi_ec_poll_read(union acpi_ec *ec, u8 address, u32 * data) *data, address)); end: - spin_unlock_irqrestore(&ec->poll.lock, flags); - + up(&ec->poll.sem); +end_nosem: if (ec->common.global_lock) acpi_release_global_lock(glk); @@ -370,7 +372,6 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data) { int result = 0; acpi_status status = AE_OK; - unsigned long flags = 0; u32 glk = 0; ACPI_FUNCTION_TRACE("acpi_ec_write"); @@ -384,8 +385,11 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data) return_VALUE(-ENODEV); } - spin_lock_irqsave(&ec->poll.lock, flags); - + if (down_interruptible(&ec->poll.sem)) { + result = -ERESTARTSYS; + goto end_nosem; + } + acpi_hw_low_level_write(8, ACPI_EC_COMMAND_WRITE, &ec->common.command_addr); result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBE); @@ -406,8 +410,8 @@ static int acpi_ec_poll_write(union acpi_ec *ec, u8 address, u8 data) data, address)); end: - spin_unlock_irqrestore(&ec->poll.lock, flags); - + up(&ec->poll.sem); +end_nosem: if (ec->common.global_lock) acpi_release_global_lock(glk); @@ -568,7 +572,6 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data) { int result = 0; acpi_status status = AE_OK; - unsigned long flags = 0; u32 glk = 0; ACPI_FUNCTION_TRACE("acpi_ec_query"); @@ -589,8 +592,11 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data) * Note that successful completion of the query causes the ACPI_EC_SCI * bit to be cleared (and thus clearing the interrupt source). */ - spin_lock_irqsave(&ec->poll.lock, flags); - + if (down_interruptible(&ec->poll.sem)) { + result = -ERESTARTSYS; + goto end_nosem; + } + acpi_hw_low_level_write(8, ACPI_EC_COMMAND_QUERY, &ec->common.command_addr); result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF); @@ -602,8 +608,8 @@ static int acpi_ec_poll_query(union acpi_ec *ec, u32 * data) result = -ENODATA; end: - spin_unlock_irqrestore(&ec->poll.lock, flags); - + up(&ec->poll.sem); +end_nosem: if (ec->common.global_lock) acpi_release_global_lock(glk); @@ -680,7 +686,6 @@ static void acpi_ec_gpe_poll_query(void *ec_cxt) { union acpi_ec *ec = (union acpi_ec *)ec_cxt; u32 value = 0; - unsigned long flags = 0; static char object_name[5] = { '_', 'Q', '0', '0', '\0' }; const char hex[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' @@ -691,9 +696,11 @@ static void acpi_ec_gpe_poll_query(void *ec_cxt) if (!ec_cxt) goto end; - spin_lock_irqsave(&ec->poll.lock, flags); + if (down_interruptible (&ec->poll.sem)) { + return_VOID; + } acpi_hw_low_level_read(8, &value, &ec->common.command_addr); - spin_unlock_irqrestore(&ec->poll.lock, flags); + up(&ec->poll.sem); /* TBD: Implement asynch events! * NOTE: All we care about are EC-SCI's. Other EC events are @@ -763,8 +770,7 @@ static u32 acpi_ec_gpe_poll_handler(void *data) acpi_disable_gpe(NULL, ec->common.gpe_bit, ACPI_ISR); - status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE, - acpi_ec_gpe_query, ec); + status = acpi_os_execute(OSL_EC_POLL_HANDLER, acpi_ec_gpe_query, ec); if (status == AE_OK) return ACPI_INTERRUPT_HANDLED; @@ -799,7 +805,7 @@ static u32 acpi_ec_gpe_intr_handler(void *data) if (value & ACPI_EC_FLAG_SCI) { atomic_add(1, &ec->intr.pending_gpe); - status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE, + status = acpi_os_execute(OSL_EC_BURST_HANDLER, acpi_ec_gpe_query, ec); return status == AE_OK ? ACPI_INTERRUPT_HANDLED : ACPI_INTERRUPT_NOT_HANDLED; @@ -991,7 +997,6 @@ static int acpi_ec_poll_add(struct acpi_device *device) int result = 0; acpi_status status = AE_OK; union acpi_ec *ec = NULL; - unsigned long uid; ACPI_FUNCTION_TRACE("acpi_ec_add"); @@ -1005,7 +1010,7 @@ static int acpi_ec_poll_add(struct acpi_device *device) ec->common.handle = device->handle; ec->common.uid = -1; - spin_lock_init(&ec->poll.lock); + init_MUTEX(&ec->poll.sem); strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_EC_CLASS); acpi_driver_data(device) = ec; @@ -1014,10 +1019,9 @@ static int acpi_ec_poll_add(struct acpi_device *device) acpi_evaluate_integer(ec->common.handle, "_GLK", NULL, &ec->common.global_lock); - /* If our UID matches the UID for the ECDT-enumerated EC, - we now have the *real* EC info, so kill the makeshift one. */ - acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid); - if (ec_ecdt && ec_ecdt->common.uid == uid) { + /* XXX we don't test uids, because on some boxes ecdt uid = 0, see: + http://bugzilla.kernel.org/show_bug.cgi?id=6111 */ + if (ec_ecdt) { acpi_remove_address_space_handler(ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler); @@ -1062,7 +1066,6 @@ static int acpi_ec_intr_add(struct acpi_device *device) int result = 0; acpi_status status = AE_OK; union acpi_ec *ec = NULL; - unsigned long uid; ACPI_FUNCTION_TRACE("acpi_ec_add"); @@ -1088,10 +1091,9 @@ static int acpi_ec_intr_add(struct acpi_device *device) acpi_evaluate_integer(ec->common.handle, "_GLK", NULL, &ec->common.global_lock); - /* If our UID matches the UID for the ECDT-enumerated EC, - we now have the *real* EC info, so kill the makeshift one. */ - acpi_evaluate_integer(ec->common.handle, "_UID", NULL, &uid); - if (ec_ecdt && ec_ecdt->common.uid == uid) { + /* XXX we don't test uids, because on some boxes ecdt uid = 0, see: + http://bugzilla.kernel.org/show_bug.cgi?id=6111 */ + if (ec_ecdt) { acpi_remove_address_space_handler(ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler); @@ -1300,7 +1302,7 @@ acpi_fake_ecdt_poll_callback(acpi_handle handle, &ec_ecdt->common.gpe_bit); if (ACPI_FAILURE(status)) return status; - spin_lock_init(&ec_ecdt->poll.lock); + init_MUTEX(&ec_ecdt->poll.sem); ec_ecdt->common.global_lock = TRUE; ec_ecdt->common.handle = handle; @@ -1416,7 +1418,7 @@ static int __init acpi_ec_poll_get_real_ecdt(void) ec_ecdt->common.status_addr = ecdt_ptr->ec_control; ec_ecdt->common.data_addr = ecdt_ptr->ec_data; ec_ecdt->common.gpe_bit = ecdt_ptr->gpe_bit; - spin_lock_init(&ec_ecdt->poll.lock); + init_MUTEX(&ec_ecdt->poll.sem); /* use the GL just to be safe */ ec_ecdt->common.global_lock = TRUE; ec_ecdt->common.uid = ecdt_ptr->uid; diff --git a/drivers/acpi/events/evevent.c b/drivers/acpi/events/evevent.c index c9ac05c4685f..919037d6acff 100644 --- a/drivers/acpi/events/evevent.c +++ b/drivers/acpi/events/evevent.c @@ -68,7 +68,7 @@ acpi_status acpi_ev_initialize_events(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_initialize_events"); + ACPI_FUNCTION_TRACE(ev_initialize_events); /* Make sure we have ACPI tables */ @@ -118,7 +118,7 @@ acpi_status acpi_ev_install_fadt_gpes(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_install_fadt_gpes"); + ACPI_FUNCTION_TRACE(ev_install_fadt_gpes); /* Namespace must be locked */ @@ -157,7 +157,7 @@ acpi_status acpi_ev_install_xrupt_handlers(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_install_xrupt_handlers"); + ACPI_FUNCTION_TRACE(ev_install_xrupt_handlers); /* Install the SCI handler */ @@ -241,7 +241,7 @@ u32 acpi_ev_fixed_event_detect(void) u32 fixed_enable; acpi_native_uint i; - ACPI_FUNCTION_NAME("ev_fixed_event_detect"); + ACPI_FUNCTION_NAME(ev_fixed_event_detect); /* * Read the fixed feature status and enable registers, as all the cases @@ -260,12 +260,14 @@ u32 acpi_ev_fixed_event_detect(void) * Check for all possible Fixed Events and dispatch those that are active */ for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { + /* Both the status and enable bits must be on for this event */ if ((fixed_status & acpi_gbl_fixed_event_info[i]. status_bit_mask) && (fixed_enable & acpi_gbl_fixed_event_info[i]. enable_bit_mask)) { + /* Found an active (signalled) event */ int_status |= acpi_ev_fixed_event_dispatch((u32) i); diff --git a/drivers/acpi/events/evgpe.c b/drivers/acpi/events/evgpe.c index f64f977dd3d5..f01d339407f8 100644 --- a/drivers/acpi/events/evgpe.c +++ b/drivers/acpi/events/evgpe.c @@ -69,7 +69,7 @@ acpi_ev_set_gpe_type(struct acpi_gpe_event_info *gpe_event_info, u8 type) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_set_gpe_type"); + ACPI_FUNCTION_TRACE(ev_set_gpe_type); /* Validate type and update register enable masks */ @@ -115,7 +115,7 @@ acpi_ev_update_gpe_enable_masks(struct acpi_gpe_event_info *gpe_event_info, struct acpi_gpe_register_info *gpe_register_info; u8 register_bit; - ACPI_FUNCTION_TRACE("ev_update_gpe_enable_masks"); + ACPI_FUNCTION_TRACE(ev_update_gpe_enable_masks); gpe_register_info = gpe_event_info->register_info; if (!gpe_register_info) { @@ -178,7 +178,7 @@ acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, { acpi_status status; - ACPI_FUNCTION_TRACE("ev_enable_gpe"); + ACPI_FUNCTION_TRACE(ev_enable_gpe); /* Make sure HW enable masks are updated */ @@ -207,6 +207,7 @@ acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info, ACPI_SET_BIT(gpe_event_info->flags, ACPI_GPE_RUN_ENABLED); if (write_to_hardware) { + /* Clear the GPE (of stale events), then enable it */ status = acpi_hw_clear_gpe(gpe_event_info); @@ -243,7 +244,7 @@ acpi_status acpi_ev_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_disable_gpe"); + ACPI_FUNCTION_TRACE(ev_disable_gpe); if (!(gpe_event_info->flags & ACPI_GPE_ENABLE_MASK)) { return_ACPI_STATUS(AE_OK); @@ -313,6 +314,7 @@ struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device, /* A NULL gpe_block means use the FADT-defined GPE block(s) */ if (!gpe_device) { + /* Examine GPE Block 0 and 1 (These blocks are permanent) */ for (i = 0; i < ACPI_MAX_GPE_BLOCKS; i++) { @@ -380,10 +382,11 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) u32 status_reg; u32 enable_reg; acpi_cpu_flags flags; + acpi_cpu_flags hw_flags; acpi_native_uint i; acpi_native_uint j; - ACPI_FUNCTION_NAME("ev_gpe_detect"); + ACPI_FUNCTION_NAME(ev_gpe_detect); /* Check for the case where there are no GPEs */ @@ -391,9 +394,12 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) return (int_status); } - /* Examine all GPE blocks attached to this interrupt level */ + /* We need to hold the GPE lock now, hardware lock in the loop */ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Examine all GPE blocks attached to this interrupt level */ + gpe_block = gpe_xrupt_list->gpe_block_list_head; while (gpe_block) { /* @@ -402,10 +408,13 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) * Find all currently active GP events. */ for (i = 0; i < gpe_block->register_count; i++) { + /* Get the next status/enable pair */ gpe_register_info = &gpe_block->register_info[i]; + hw_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); + /* Read the Status Register */ status = @@ -414,6 +423,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) &gpe_register_info-> status_address); if (ACPI_FAILURE(status)) { + acpi_os_release_lock(acpi_gbl_hardware_lock, + hw_flags); goto unlock_and_exit; } @@ -424,6 +435,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) &enable_reg, &gpe_register_info-> enable_address); + acpi_os_release_lock(acpi_gbl_hardware_lock, hw_flags); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -437,6 +450,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) enabled_status_byte = (u8) (status_reg & enable_reg); if (!enabled_status_byte) { + /* No active GPEs in this register, move on */ continue; @@ -445,6 +459,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) /* Now look at the individual GPEs in this byte register */ for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { + /* Examine one GPE bit */ if (enabled_status_byte & @@ -483,9 +498,9 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) * * RETURN: None * - * DESCRIPTION: Perform the actual execution of a GPE control method. This - * function is called from an invocation of acpi_os_queue_for_execution - * (and therefore does NOT execute at interrupt level) so that + * DESCRIPTION: Perform the actual execution of a GPE control method. This + * function is called from an invocation of acpi_os_execute and + * therefore does NOT execute at interrupt level - so that * the control method itself is not executed in the context of * an interrupt handler. * @@ -494,12 +509,11 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) { struct acpi_gpe_event_info *gpe_event_info = (void *)context; - u32 gpe_number = 0; acpi_status status; struct acpi_gpe_event_info local_gpe_event_info; - struct acpi_parameter_info info; + struct acpi_evaluate_info *info; - ACPI_FUNCTION_TRACE("ev_asynch_execute_gpe_method"); + ACPI_FUNCTION_TRACE(ev_asynch_execute_gpe_method); status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); if (ACPI_FAILURE(status)) { @@ -535,22 +549,35 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context) */ if ((local_gpe_event_info.flags & ACPI_GPE_DISPATCH_MASK) == ACPI_GPE_DISPATCH_METHOD) { - /* - * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx - * control method that corresponds to this GPE - */ - info.node = local_gpe_event_info.dispatch.method_node; - info.parameters = - ACPI_CAST_PTR(union acpi_operand_object *, gpe_event_info); - info.parameter_type = ACPI_PARAM_GPE; - status = acpi_ns_evaluate_by_handle(&info); + /* Allocate the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + status = AE_NO_MEMORY; + } else { + /* + * Invoke the GPE Method (_Lxx, _Exx) i.e., evaluate the _Lxx/_Exx + * control method that corresponds to this GPE + */ + info->prefix_node = + local_gpe_event_info.dispatch.method_node; + info->parameters = + ACPI_CAST_PTR(union acpi_operand_object *, + gpe_event_info); + info->parameter_type = ACPI_PARAM_GPE; + info->flags = ACPI_IGNORE_RETURN_VALUE; + + status = acpi_ns_evaluate(info); + ACPI_FREE(info); + } + if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "While evaluating method [%4.4s] for GPE[%2X]", + "While evaluating GPE method [%4.4s]", acpi_ut_get_node_name (local_gpe_event_info.dispatch. - method_node), gpe_number)); + method_node))); } } @@ -593,7 +620,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_gpe_dispatch"); + ACPI_FUNCTION_TRACE(ev_gpe_dispatch); /* * If edge-triggered, clear the GPE status bit now. Note that @@ -669,9 +696,9 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) * Execute the method associated with the GPE * NOTE: Level-triggered GPEs are cleared after the method completes. */ - status = acpi_os_queue_for_execution(OSD_PRIORITY_GPE, - acpi_ev_asynch_execute_gpe_method, - gpe_event_info); + status = acpi_os_execute(OSL_GPE_HANDLER, + acpi_ev_asynch_execute_gpe_method, + gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Unable to queue handler for GPE[%2X] - event disabled", @@ -716,7 +743,7 @@ acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info, u32 gpe_number) * * DESCRIPTION: Determine if a a GPE is "wake-only". * - * Called from Notify() code in interpreter when a "device_wake" + * Called from Notify() code in interpreter when a "DeviceWake" * Notify comes in. * ******************************************************************************/ @@ -726,7 +753,7 @@ acpi_ev_check_for_wake_only_gpe(struct acpi_gpe_event_info *gpe_event_info) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_check_for_wake_only_gpe"); + ACPI_FUNCTION_TRACE(ev_check_for_wake_only_gpe); if ((gpe_event_info) && /* Only >0 for _Lxx/_Exx */ ((gpe_event_info->flags & ACPI_GPE_SYSTEM_MASK) == ACPI_GPE_SYSTEM_RUNNING)) { /* System state at GPE time */ diff --git a/drivers/acpi/events/evgpeblk.c b/drivers/acpi/events/evgpeblk.c index 0fd00b5ad650..95ddeb48bc0f 100644 --- a/drivers/acpi/events/evgpeblk.c +++ b/drivers/acpi/events/evgpeblk.c @@ -131,14 +131,14 @@ u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info) * ******************************************************************************/ -acpi_status acpi_ev_walk_gpe_list(ACPI_GPE_CALLBACK gpe_walk_callback) +acpi_status acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback) { struct acpi_gpe_block_info *gpe_block; struct acpi_gpe_xrupt_info *gpe_xrupt_info; acpi_status status = AE_OK; acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE("ev_walk_gpe_list"); + ACPI_FUNCTION_TRACE(ev_walk_gpe_list); flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); @@ -146,10 +146,12 @@ acpi_status acpi_ev_walk_gpe_list(ACPI_GPE_CALLBACK gpe_walk_callback) gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; while (gpe_xrupt_info) { + /* Walk all Gpe Blocks attached to this interrupt level */ gpe_block = gpe_xrupt_info->gpe_block_list_head; while (gpe_block) { + /* One callback per GPE block */ status = gpe_walk_callback(gpe_xrupt_info, gpe_block); @@ -190,11 +192,12 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, acpi_native_uint i; acpi_native_uint j; - ACPI_FUNCTION_TRACE("ev_delete_gpe_handlers"); + ACPI_FUNCTION_TRACE(ev_delete_gpe_handlers); /* Examine each GPE Register within the block */ for (i = 0; i < gpe_block->register_count; i++) { + /* Now look at the individual GPEs in this byte register */ for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) { @@ -204,7 +207,7 @@ acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info, if ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) == ACPI_GPE_DISPATCH_HANDLER) { - ACPI_MEM_FREE(gpe_event_info->dispatch.handler); + ACPI_FREE(gpe_event_info->dispatch.handler); gpe_event_info->dispatch.handler = NULL; gpe_event_info->flags &= ~ACPI_GPE_DISPATCH_MASK; @@ -248,7 +251,7 @@ acpi_ev_save_method_info(acpi_handle obj_handle, u8 type; acpi_status status; - ACPI_FUNCTION_TRACE("ev_save_method_info"); + ACPI_FUNCTION_TRACE(ev_save_method_info); /* * _Lxx and _Exx GPE method support @@ -279,9 +282,9 @@ acpi_ev_save_method_info(acpi_handle obj_handle, default: /* Unknown method type, just ignore it! */ - ACPI_ERROR((AE_INFO, - "Unknown GPE method type: %s (name not of form _Lxx or _Exx)", - name)); + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "Ignoring unknown GPE method type: %s (name not of form _Lxx or _Exx)", + name)); return_ACPI_STATUS(AE_OK); } @@ -289,11 +292,12 @@ acpi_ev_save_method_info(acpi_handle obj_handle, gpe_number = ACPI_STRTOUL(&name[2], NULL, 16); if (gpe_number == ACPI_UINT32_MAX) { + /* Conversion failed; invalid method, just ignore it */ - ACPI_ERROR((AE_INFO, - "Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)", - name)); + ACPI_DEBUG_PRINT((ACPI_DB_LOAD, + "Could not extract GPE number from name: %s (name is not of form _Lxx or _Exx)", + name)); return_ACPI_STATUS(AE_OK); } @@ -364,13 +368,14 @@ acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, u32 gpe_number; acpi_status status; - ACPI_FUNCTION_TRACE("ev_match_prw_and_gpe"); + ACPI_FUNCTION_TRACE(ev_match_prw_and_gpe); /* Check for a _PRW method under this device */ status = acpi_ut_evaluate_object(obj_handle, METHOD_NAME__PRW, ACPI_BTYPE_PACKAGE, &pkg_desc); if (ACPI_FAILURE(status)) { + /* Ignore all errors from _PRW, we don't want to abort the subsystem */ return_ACPI_STATUS(AE_OK); @@ -394,6 +399,7 @@ acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, obj_desc = pkg_desc->package.elements[0]; if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + /* Use FADT-defined GPE device (from definition of _PRW) */ target_gpe_device = acpi_gbl_fadt_gpe_device; @@ -402,6 +408,7 @@ acpi_ev_match_prw_and_gpe(acpi_handle obj_handle, gpe_number = (u32) obj_desc->integer.value; } else if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) { + /* Package contains a GPE reference and GPE number within a GPE block */ if ((obj_desc->package.count < 2) || @@ -482,7 +489,7 @@ static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 acpi_status status; acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE("ev_get_gpe_xrupt_block"); + ACPI_FUNCTION_TRACE(ev_get_gpe_xrupt_block); /* No need for lock since we are not changing any list elements here */ @@ -497,7 +504,7 @@ static struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 /* Not found, must allocate a new xrupt descriptor */ - gpe_xrupt = ACPI_MEM_CALLOCATE(sizeof(struct acpi_gpe_xrupt_info)); + gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info)); if (!gpe_xrupt) { return_PTR(NULL); } @@ -556,7 +563,7 @@ acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt) acpi_status status; acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE("ev_delete_gpe_xrupt"); + ACPI_FUNCTION_TRACE(ev_delete_gpe_xrupt); /* We never want to remove the SCI interrupt handler */ @@ -588,7 +595,7 @@ acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt) /* Free the block */ - ACPI_MEM_FREE(gpe_xrupt); + ACPI_FREE(gpe_xrupt); return_ACPI_STATUS(AE_OK); } @@ -614,7 +621,7 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, acpi_status status; acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE("ev_install_gpe_block"); + ACPI_FUNCTION_TRACE(ev_install_gpe_block); status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); if (ACPI_FAILURE(status)) { @@ -667,7 +674,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block) acpi_status status; acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE("ev_install_gpe_block"); + ACPI_FUNCTION_TRACE(ev_install_gpe_block); status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); if (ACPI_FAILURE(status)) { @@ -679,6 +686,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block) status = acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block); if (!gpe_block->previous && !gpe_block->next) { + /* This is the last gpe_block on this interrupt */ status = acpi_ev_delete_gpe_xrupt(gpe_block->xrupt_block); @@ -704,9 +712,9 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block) /* Free the gpe_block */ - ACPI_MEM_FREE(gpe_block->register_info); - ACPI_MEM_FREE(gpe_block->event_info); - ACPI_MEM_FREE(gpe_block); + ACPI_FREE(gpe_block->register_info); + ACPI_FREE(gpe_block->event_info); + ACPI_FREE(gpe_block); unlock_and_exit: status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); @@ -736,17 +744,17 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) acpi_native_uint j; acpi_status status; - ACPI_FUNCTION_TRACE("ev_create_gpe_info_blocks"); + ACPI_FUNCTION_TRACE(ev_create_gpe_info_blocks); /* Allocate the GPE register information block */ - gpe_register_info = ACPI_MEM_CALLOCATE((acpi_size) gpe_block-> - register_count * - sizeof(struct - acpi_gpe_register_info)); + gpe_register_info = ACPI_ALLOCATE_ZEROED((acpi_size) gpe_block-> + register_count * + sizeof(struct + acpi_gpe_register_info)); if (!gpe_register_info) { ACPI_ERROR((AE_INFO, - "Could not allocate the gpe_register_info table")); + "Could not allocate the GpeRegisterInfo table")); return_ACPI_STATUS(AE_NO_MEMORY); } @@ -754,13 +762,14 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) * Allocate the GPE event_info block. There are eight distinct GPEs * per register. Initialization to zeros is sufficient. */ - gpe_event_info = ACPI_MEM_CALLOCATE(((acpi_size) gpe_block-> - register_count * - ACPI_GPE_REGISTER_WIDTH) * - sizeof(struct acpi_gpe_event_info)); + gpe_event_info = ACPI_ALLOCATE_ZEROED(((acpi_size) gpe_block-> + register_count * + ACPI_GPE_REGISTER_WIDTH) * + sizeof(struct + acpi_gpe_event_info)); if (!gpe_event_info) { ACPI_ERROR((AE_INFO, - "Could not allocate the gpe_event_info table")); + "Could not allocate the GpeEventInfo table")); status = AE_NO_MEMORY; goto error_exit; } @@ -780,6 +789,7 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) this_event = gpe_event_info; for (i = 0; i < gpe_block->register_count; i++) { + /* Init the register_info for this GPE register (8 GPEs) */ this_register->base_gpe_number = @@ -839,10 +849,10 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) error_exit: if (gpe_register_info) { - ACPI_MEM_FREE(gpe_register_info); + ACPI_FREE(gpe_register_info); } if (gpe_event_info) { - ACPI_MEM_FREE(gpe_event_info); + ACPI_FREE(gpe_event_info); } return_ACPI_STATUS(status); @@ -878,7 +888,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, acpi_status status; struct acpi_gpe_block_info *gpe_block; - ACPI_FUNCTION_TRACE("ev_create_gpe_block"); + ACPI_FUNCTION_TRACE(ev_create_gpe_block); if (!register_count) { return_ACPI_STATUS(AE_OK); @@ -886,7 +896,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, /* Allocate a new GPE block */ - gpe_block = ACPI_MEM_CALLOCATE(sizeof(struct acpi_gpe_block_info)); + gpe_block = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_block_info)); if (!gpe_block) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -906,7 +916,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, */ status = acpi_ev_create_gpe_info_blocks(gpe_block); if (ACPI_FAILURE(status)) { - ACPI_MEM_FREE(gpe_block); + ACPI_FREE(gpe_block); return_ACPI_STATUS(status); } @@ -914,7 +924,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, status = acpi_ev_install_gpe_block(gpe_block, interrupt_number); if (ACPI_FAILURE(status)) { - ACPI_MEM_FREE(gpe_block); + ACPI_FREE(gpe_block); return_ACPI_STATUS(status); } @@ -971,7 +981,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, acpi_native_uint i; acpi_native_uint j; - ACPI_FUNCTION_TRACE("ev_initialize_gpe_block"); + ACPI_FUNCTION_TRACE(ev_initialize_gpe_block); /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */ @@ -1013,6 +1023,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, for (i = 0; i < gpe_block->register_count; i++) { for (j = 0; j < 8; j++) { + /* Get the info block for this particular GPE */ gpe_event_info = @@ -1040,7 +1051,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, status = acpi_hw_enable_runtime_gpe_block(NULL, gpe_block); if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "Could not enable GPEs in gpe_block %p", + ACPI_ERROR((AE_INFO, "Could not enable GPEs in GpeBlock %p", gpe_block)); } @@ -1066,7 +1077,7 @@ acpi_status acpi_ev_gpe_initialize(void) u32 gpe_number_max = 0; acpi_status status; - ACPI_FUNCTION_TRACE("ev_gpe_initialize"); + ACPI_FUNCTION_TRACE(ev_gpe_initialize); status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); if (ACPI_FAILURE(status)) { @@ -1099,6 +1110,7 @@ acpi_status acpi_ev_gpe_initialize(void) * particular block is not supported. */ if (acpi_gbl_FADT->gpe0_blk_len && acpi_gbl_FADT->xgpe0_blk.address) { + /* GPE block 0 exists (has both length and address > 0) */ register_count0 = (u16) (acpi_gbl_FADT->gpe0_blk_len / 2); @@ -1121,6 +1133,7 @@ acpi_status acpi_ev_gpe_initialize(void) } if (acpi_gbl_FADT->gpe1_blk_len && acpi_gbl_FADT->xgpe1_blk.address) { + /* GPE block 1 exists (has both length and address > 0) */ register_count1 = (u16) (acpi_gbl_FADT->gpe1_blk_len / 2); @@ -1168,6 +1181,7 @@ acpi_status acpi_ev_gpe_initialize(void) /* Exit if there are no GPE registers */ if ((register_count0 + register_count1) == 0) { + /* GPEs are not required by ACPI, this is OK */ ACPI_DEBUG_PRINT((ACPI_DB_INIT, diff --git a/drivers/acpi/events/evmisc.c b/drivers/acpi/events/evmisc.c index 0909ba69577e..6eef4efddcf6 100644 --- a/drivers/acpi/events/evmisc.c +++ b/drivers/acpi/events/evmisc.c @@ -49,12 +49,13 @@ #define _COMPONENT ACPI_EVENTS ACPI_MODULE_NAME("evmisc") +/* Names for Notify() values, used for debug output */ #ifdef ACPI_DEBUG_OUTPUT static const char *acpi_notify_value_names[] = { "Bus Check", "Device Check", "Device Wake", - "Eject request", + "Eject Request", "Device Check Light", "Frequency Mismatch", "Bus Mode Mismatch", @@ -124,7 +125,7 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node, union acpi_generic_state *notify_info; acpi_status status = AE_OK; - ACPI_FUNCTION_NAME("ev_queue_notify_request"); + ACPI_FUNCTION_NAME(ev_queue_notify_request); /* * For value 3 (Ejection Request), some device method may need to be run. @@ -150,6 +151,7 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node, obj_desc = acpi_ns_get_attached_object(node); if (obj_desc) { + /* We have the notify object, Get the right handler */ switch (node->type) { @@ -184,14 +186,15 @@ acpi_ev_queue_notify_request(struct acpi_namespace_node * node, return (AE_NO_MEMORY); } - notify_info->common.data_type = ACPI_DESC_TYPE_STATE_NOTIFY; + notify_info->common.descriptor_type = + ACPI_DESC_TYPE_STATE_NOTIFY; notify_info->notify.node = node; notify_info->notify.value = (u16) notify_value; notify_info->notify.handler_obj = handler_obj; - status = acpi_os_queue_for_execution(OSD_PRIORITY_HIGH, - acpi_ev_notify_dispatch, - notify_info); + status = + acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ev_notify_dispatch, + notify_info); if (ACPI_FAILURE(status)) { acpi_ut_delete_generic_state(notify_info); } @@ -240,6 +243,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_notify_dispatch(void *context) * to the device. */ if (notify_info->notify.value <= ACPI_MAX_SYS_NOTIFY) { + /* Global system notification handler */ if (acpi_gbl_system_notify.handler) { @@ -297,6 +301,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_global_lock_thread(void *context) /* Signal threads that are waiting for the lock */ if (acpi_gbl_global_lock_thread_count) { + /* Send sufficient units to the semaphore */ status = @@ -335,15 +340,16 @@ static u32 acpi_ev_global_lock_handler(void *context) */ ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_common_fACS.global_lock, acquired); if (acquired) { + /* Got the lock, now wake all threads waiting for it */ acpi_gbl_global_lock_acquired = TRUE; /* Run the Global Lock thread which will signal all waiting threads */ - status = acpi_os_queue_for_execution(OSD_PRIORITY_HIGH, - acpi_ev_global_lock_thread, - context); + status = + acpi_os_execute(OSL_GLOBAL_LOCK_HANDLER, + acpi_ev_global_lock_thread, context); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Could not queue Global Lock thread")); @@ -371,7 +377,7 @@ acpi_status acpi_ev_init_global_lock_handler(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_init_global_lock_handler"); + ACPI_FUNCTION_TRACE(ev_init_global_lock_handler); acpi_gbl_global_lock_present = TRUE; status = acpi_install_fixed_event_handler(ACPI_EVENT_GLOBAL, @@ -413,7 +419,7 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout) acpi_status status = AE_OK; u8 acquired = FALSE; - ACPI_FUNCTION_TRACE("ev_acquire_global_lock"); + ACPI_FUNCTION_TRACE(ev_acquire_global_lock); #ifndef ACPI_APPLICATION /* Make sure that we actually have a global lock */ @@ -439,6 +445,7 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout) ACPI_ACQUIRE_GLOBAL_LOCK(acpi_gbl_common_fACS.global_lock, acquired); if (acquired) { + /* We got the lock */ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, @@ -458,8 +465,9 @@ acpi_status acpi_ev_acquire_global_lock(u16 timeout) * Acquire the global lock semaphore first. * Since this wait will block, we must release the interpreter */ - status = acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore, - timeout); + status = + acpi_ex_system_wait_semaphore(acpi_gbl_global_lock_semaphore, + timeout); return_ACPI_STATUS(status); } @@ -480,7 +488,7 @@ acpi_status acpi_ev_release_global_lock(void) u8 pending = FALSE; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ev_release_global_lock"); + ACPI_FUNCTION_TRACE(ev_release_global_lock); if (!acpi_gbl_global_lock_thread_count) { ACPI_WARNING((AE_INFO, @@ -492,6 +500,7 @@ acpi_status acpi_ev_release_global_lock(void) acpi_gbl_global_lock_thread_count--; if (acpi_gbl_global_lock_thread_count) { + /* There are still some threads holding the lock, cannot release */ return_ACPI_STATUS(AE_OK); @@ -533,7 +542,7 @@ void acpi_ev_terminate(void) acpi_native_uint i; acpi_status status; - ACPI_FUNCTION_TRACE("ev_terminate"); + ACPI_FUNCTION_TRACE(ev_terminate); if (acpi_gbl_events_initialized) { /* @@ -573,7 +582,7 @@ void acpi_ev_terminate(void) if (acpi_gbl_original_mode == ACPI_SYS_MODE_LEGACY) { status = acpi_disable(); if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "acpi_disable failed")); + ACPI_WARNING((AE_INFO, "AcpiDisable failed")); } } return_VOID; diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c index 6da58e776413..094a17e4c86d 100644 --- a/drivers/acpi/events/evregion.c +++ b/drivers/acpi/events/evregion.c @@ -83,7 +83,7 @@ acpi_status acpi_ev_install_region_handlers(void) acpi_status status; acpi_native_uint i; - ACPI_FUNCTION_TRACE("ev_install_region_handlers"); + ACPI_FUNCTION_TRACE(ev_install_region_handlers); status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); if (ACPI_FAILURE(status)) { @@ -153,7 +153,7 @@ acpi_status acpi_ev_initialize_op_regions(void) acpi_status status; acpi_native_uint i; - ACPI_FUNCTION_TRACE("ev_initialize_op_regions"); + ACPI_FUNCTION_TRACE(ev_initialize_op_regions); status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); if (ACPI_FAILURE(status)) { @@ -164,6 +164,7 @@ acpi_status acpi_ev_initialize_op_regions(void) * Run the _REG methods for op_regions in each default address space */ for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) { + /* TBD: Make sure handler is the DEFAULT handler, otherwise * _REG will have already been run. */ @@ -192,12 +193,12 @@ acpi_status acpi_ev_initialize_op_regions(void) acpi_status acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function) { - struct acpi_parameter_info info; - union acpi_operand_object *params[3]; + struct acpi_evaluate_info *info; + union acpi_operand_object *args[3]; union acpi_operand_object *region_obj2; acpi_status status; - ACPI_FUNCTION_TRACE("ev_execute_reg_method"); + ACPI_FUNCTION_TRACE(ev_execute_reg_method); region_obj2 = acpi_ns_get_secondary_object(region_obj); if (!region_obj2) { @@ -208,48 +209,60 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function) return_ACPI_STATUS(AE_OK); } + /* Allocate and initialize the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->prefix_node = region_obj2->extra.method_REG; + info->pathname = NULL; + info->parameters = args; + info->parameter_type = ACPI_PARAM_ARGS; + info->flags = ACPI_IGNORE_RETURN_VALUE; + /* * The _REG method has two arguments: * - * Arg0, Integer: Operation region space ID - * Same value as region_obj->Region.space_id - * Arg1, Integer: connection status - * 1 for connecting the handler, - * 0 for disconnecting the handler - * Passed as a parameter + * Arg0 - Integer: + * Operation region space ID Same value as region_obj->Region.space_id + * + * Arg1 - Integer: + * connection status 1 for connecting the handler, 0 for disconnecting + * the handler (Passed as a parameter) */ - params[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!params[0]) { - return_ACPI_STATUS(AE_NO_MEMORY); + args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!args[0]) { + status = AE_NO_MEMORY; + goto cleanup1; } - params[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); - if (!params[1]) { + args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!args[1]) { status = AE_NO_MEMORY; - goto cleanup; + goto cleanup2; } /* Setup the parameter objects */ - params[0]->integer.value = region_obj->region.space_id; - params[1]->integer.value = function; - params[2] = NULL; - - info.node = region_obj2->extra.method_REG; - info.parameters = params; - info.parameter_type = ACPI_PARAM_ARGS; + args[0]->integer.value = region_obj->region.space_id; + args[1]->integer.value = function; + args[2] = NULL; /* Execute the method, no return value */ ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname - (ACPI_TYPE_METHOD, info.node, NULL)); - status = acpi_ns_evaluate_by_handle(&info); + (ACPI_TYPE_METHOD, info->prefix_node, NULL)); - acpi_ut_remove_reference(params[1]); + status = acpi_ns_evaluate(info); + acpi_ut_remove_reference(args[1]); - cleanup: - acpi_ut_remove_reference(params[0]); + cleanup2: + acpi_ut_remove_reference(args[0]); + cleanup1: + ACPI_FREE(info); return_ACPI_STATUS(status); } @@ -261,7 +274,8 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function) * Function - Read or Write operation * Address - Where in the space to read or write * bit_width - Field width in bits (8, 16, 32, or 64) - * Value - Pointer to in or out value + * Value - Pointer to in or out value, must be + * full 64-bit acpi_integer * * RETURN: Status * @@ -274,7 +288,7 @@ acpi_status acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, u32 function, acpi_physical_address address, - u32 bit_width, void *value) + u32 bit_width, acpi_integer * value) { acpi_status status; acpi_status status2; @@ -284,7 +298,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, union acpi_operand_object *region_obj2; void *region_context = NULL; - ACPI_FUNCTION_TRACE("ev_address_space_dispatch"); + ACPI_FUNCTION_TRACE(ev_address_space_dispatch); region_obj2 = acpi_ns_get_secondary_object(region_obj); if (!region_obj2) { @@ -315,6 +329,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, */ region_setup = handler_desc->address_space.setup; if (!region_setup) { + /* No initialization routine, exit with error */ ACPI_ERROR((AE_INFO, @@ -361,9 +376,10 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE; if (region_obj2->extra.region_context) { + /* The handler for this region was already installed */ - ACPI_MEM_FREE(region_context); + ACPI_FREE(region_context); } else { /* * Save the returned context for use in all accesses to @@ -386,9 +402,8 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, acpi_ut_get_region_name(region_obj->region. space_id))); - if (! - (handler_desc->address_space. - hflags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) { + if (!(handler_desc->address_space.handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) { /* * For handlers other than the default (supplied) handlers, we must * exit the interpreter because the handler *might* block -- we don't @@ -409,9 +424,8 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, space_id))); } - if (! - (handler_desc->address_space. - hflags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) { + if (!(handler_desc->address_space.handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED)) { /* * We just returned from a non-default handler, we must re-enter the * interpreter @@ -451,7 +465,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, union acpi_operand_object *region_obj2; acpi_status status; - ACPI_FUNCTION_TRACE("ev_detach_region"); + ACPI_FUNCTION_TRACE(ev_detach_region); region_obj2 = acpi_ns_get_secondary_object(region_obj); if (!region_obj2) { @@ -463,6 +477,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, handler_obj = region_obj->region.handler; if (!handler_obj) { + /* This region has no handler, all done */ return_VOID; @@ -474,6 +489,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, last_obj_ptr = &handler_obj->address_space.region_list; while (obj_desc) { + /* Is this the correct Region? */ if (obj_desc == region_obj) { @@ -583,7 +599,7 @@ acpi_ev_attach_region(union acpi_operand_object *handler_obj, u8 acpi_ns_is_locked) { - ACPI_FUNCTION_TRACE("ev_attach_region"); + ACPI_FUNCTION_TRACE(ev_attach_region); ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, "Adding Region [%4.4s] %p to address handler %p [%s]\n", @@ -636,7 +652,7 @@ acpi_ev_install_handler(acpi_handle obj_handle, struct acpi_namespace_node *node; acpi_status status; - ACPI_FUNCTION_NAME("ev_install_handler"); + ACPI_FUNCTION_NAME(ev_install_handler); handler_obj = (union acpi_operand_object *)context; @@ -666,6 +682,7 @@ acpi_ev_install_handler(acpi_handle obj_handle, obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { + /* No object, just exit */ return (AE_OK); @@ -674,10 +691,12 @@ acpi_ev_install_handler(acpi_handle obj_handle, /* Devices are handled different than regions */ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_DEVICE) { + /* Check if this Device already has a handler for this address space */ next_handler_obj = obj_desc->device.handler; while (next_handler_obj) { + /* Found a handler, is it for the same address space? */ if (next_handler_obj->address_space.space_id == @@ -764,9 +783,9 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node, union acpi_operand_object *handler_obj; acpi_status status; acpi_object_type type; - u16 flags = 0; + u8 flags = 0; - ACPI_FUNCTION_TRACE("ev_install_space_handler"); + ACPI_FUNCTION_TRACE(ev_install_space_handler); /* * This registration is valid for only the types below @@ -839,6 +858,7 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node, /* Walk the handler list for this device */ while (handler_obj) { + /* Same space_id indicates a handler already installed */ if (handler_obj->address_space.space_id == space_id) { @@ -921,7 +941,7 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node, /* Init handler obj */ handler_obj->address_space.space_id = (u8) space_id; - handler_obj->address_space.hflags = flags; + handler_obj->address_space.handler_flags = flags; handler_obj->address_space.region_list = NULL; handler_obj->address_space.node = node; handler_obj->address_space.handler = handler; @@ -979,7 +999,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, { acpi_status status; - ACPI_FUNCTION_TRACE("ev_execute_reg_methods"); + ACPI_FUNCTION_TRACE(ev_execute_reg_methods); /* * Run all _REG methods for all Operation Regions for this @@ -1001,7 +1021,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, * * PARAMETERS: walk_namespace callback * - * DESCRIPTION: Run _REg method for region objects of the requested space_iD + * DESCRIPTION: Run _REG method for region objects of the requested space_iD * ******************************************************************************/ @@ -1035,6 +1055,7 @@ acpi_ev_reg_run(acpi_handle obj_handle, obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { + /* No object, just exit */ return (AE_OK); diff --git a/drivers/acpi/events/evrgnini.c b/drivers/acpi/events/evrgnini.c index baed8c1a1b9f..5b3c7a85eb9a 100644 --- a/drivers/acpi/events/evrgnini.c +++ b/drivers/acpi/events/evrgnini.c @@ -71,11 +71,22 @@ acpi_ev_system_memory_region_setup(acpi_handle handle, (union acpi_operand_object *)handle; struct acpi_mem_space_context *local_region_context; - ACPI_FUNCTION_TRACE("ev_system_memory_region_setup"); + ACPI_FUNCTION_TRACE(ev_system_memory_region_setup); if (function == ACPI_REGION_DEACTIVATE) { if (*region_context) { - ACPI_MEM_FREE(*region_context); + local_region_context = + (struct acpi_mem_space_context *)*region_context; + + /* Delete a cached mapping if present */ + + if (local_region_context->mapped_length) { + acpi_os_unmap_memory(local_region_context-> + mapped_logical_address, + local_region_context-> + mapped_length); + } + ACPI_FREE(local_region_context); *region_context = NULL; } return_ACPI_STATUS(AE_OK); @@ -84,7 +95,7 @@ acpi_ev_system_memory_region_setup(acpi_handle handle, /* Create a new context */ local_region_context = - ACPI_MEM_CALLOCATE(sizeof(struct acpi_mem_space_context)); + ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_mem_space_context)); if (!(local_region_context)) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -118,7 +129,7 @@ acpi_ev_io_space_region_setup(acpi_handle handle, u32 function, void *handler_context, void **region_context) { - ACPI_FUNCTION_TRACE("ev_io_space_region_setup"); + ACPI_FUNCTION_TRACE(ev_io_space_region_setup); if (function == ACPI_REGION_DEACTIVATE) { *region_context = NULL; @@ -161,7 +172,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, (union acpi_operand_object *)handle; struct acpi_device_id object_hID; - ACPI_FUNCTION_TRACE("ev_pci_config_region_setup"); + ACPI_FUNCTION_TRACE(ev_pci_config_region_setup); handler_obj = region_obj->region.handler; if (!handler_obj) { @@ -178,7 +189,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, *region_context = NULL; if (function == ACPI_REGION_DEACTIVATE) { if (pci_id) { - ACPI_MEM_FREE(pci_id); + ACPI_FREE(pci_id); } return_ACPI_STATUS(status); } @@ -199,6 +210,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, * handlers with that device. */ if (handler_obj->address_space.node == acpi_gbl_root_node) { + /* Start search from the parent object */ pci_root_node = parent_node; @@ -220,6 +232,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, PCI_EXPRESS_ROOT_HID_STRING, sizeof(PCI_EXPRESS_ROOT_HID_STRING))))) { + /* Install a handler for this PCI root bridge */ status = @@ -235,7 +248,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, } else { ACPI_EXCEPTION((AE_INFO, status, - "Could not install pci_config handler for Root Bridge %4.4s", + "Could not install PciConfig handler for Root Bridge %4.4s", acpi_ut_get_node_name (pci_root_node))); } @@ -262,7 +275,7 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, /* Region is still not initialized. Create a new context */ - pci_id = ACPI_MEM_CALLOCATE(sizeof(struct acpi_pci_id)); + pci_id = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pci_id)); if (!pci_id) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -337,7 +350,7 @@ acpi_ev_pci_bar_region_setup(acpi_handle handle, u32 function, void *handler_context, void **region_context) { - ACPI_FUNCTION_TRACE("ev_pci_bar_region_setup"); + ACPI_FUNCTION_TRACE(ev_pci_bar_region_setup); return_ACPI_STATUS(AE_OK); } @@ -364,7 +377,7 @@ acpi_ev_cmos_region_setup(acpi_handle handle, u32 function, void *handler_context, void **region_context) { - ACPI_FUNCTION_TRACE("ev_cmos_region_setup"); + ACPI_FUNCTION_TRACE(ev_cmos_region_setup); return_ACPI_STATUS(AE_OK); } @@ -389,7 +402,7 @@ acpi_ev_default_region_setup(acpi_handle handle, u32 function, void *handler_context, void **region_context) { - ACPI_FUNCTION_TRACE("ev_default_region_setup"); + ACPI_FUNCTION_TRACE(ev_default_region_setup); if (function == ACPI_REGION_DEACTIVATE) { *region_context = NULL; @@ -435,7 +448,7 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, acpi_name *reg_name_ptr = (acpi_name *) METHOD_NAME__REG; union acpi_operand_object *region_obj2; - ACPI_FUNCTION_TRACE_U32("ev_initialize_region", acpi_ns_locked); + ACPI_FUNCTION_TRACE_U32(ev_initialize_region, acpi_ns_locked); if (!region_obj) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -462,8 +475,9 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, /* Find any "_REG" method associated with this region definition */ - status = acpi_ns_search_node(*reg_name_ptr, node, - ACPI_TYPE_METHOD, &method_node); + status = + acpi_ns_search_one_scope(*reg_name_ptr, node, ACPI_TYPE_METHOD, + &method_node); if (ACPI_SUCCESS(status)) { /* * The _REG method is optional and there can be only one per region @@ -478,11 +492,13 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, * ie: acpi_gbl_root_node->parent_entry being set to NULL */ while (node) { + /* Check to see if a handler exists */ handler_obj = NULL; obj_desc = acpi_ns_get_attached_object(node); if (obj_desc) { + /* Can only be a handler if the object exists */ switch (node->type) { @@ -507,10 +523,12 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, } while (handler_obj) { + /* Is this handler of the correct type? */ if (handler_obj->address_space.space_id == space_id) { + /* Found correct handler */ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, @@ -571,7 +589,7 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, /* If we get here, there is no handler for this region */ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "No handler for region_type %s(%X) (region_obj %p)\n", + "No handler for RegionType %s(%X) (RegionObj %p)\n", acpi_ut_get_region_name(space_id), space_id, region_obj)); diff --git a/drivers/acpi/events/evsci.c b/drivers/acpi/events/evsci.c index 9a622169008a..8106215ad554 100644 --- a/drivers/acpi/events/evsci.c +++ b/drivers/acpi/events/evsci.c @@ -69,7 +69,7 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context) struct acpi_gpe_xrupt_info *gpe_xrupt_list = context; u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED; - ACPI_FUNCTION_TRACE("ev_sci_xrupt_handler"); + ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler); /* * We are guaranteed by the ACPI CA initialization/shutdown code that @@ -108,7 +108,7 @@ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context) struct acpi_gpe_xrupt_info *gpe_xrupt_list = context; u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED; - ACPI_FUNCTION_TRACE("ev_gpe_xrupt_handler"); + ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler); /* * We are guaranteed by the ACPI CA initialization/shutdown code that @@ -140,7 +140,7 @@ u32 acpi_ev_install_sci_handler(void) { u32 status = AE_OK; - ACPI_FUNCTION_TRACE("ev_install_sci_handler"); + ACPI_FUNCTION_TRACE(ev_install_sci_handler); status = acpi_os_install_interrupt_handler((u32) acpi_gbl_FADT->sci_int, acpi_ev_sci_xrupt_handler, @@ -171,7 +171,7 @@ acpi_status acpi_ev_remove_sci_handler(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ev_remove_sci_handler"); + ACPI_FUNCTION_TRACE(ev_remove_sci_handler); /* Just let the OS remove the handler and disable the level */ diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c index b38b39dde543..76c34a66e0e0 100644 --- a/drivers/acpi/events/evxface.c +++ b/drivers/acpi/events/evxface.c @@ -41,8 +41,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acnamesp.h> #include <acpi/acevents.h> @@ -68,7 +66,7 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler) { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_install_exception_handler"); + ACPI_FUNCTION_TRACE(acpi_install_exception_handler); status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); if (ACPI_FAILURE(status)) { @@ -90,6 +88,8 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler) (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); return_ACPI_STATUS(status); } + +ACPI_EXPORT_SYMBOL(acpi_install_exception_handler) #endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* @@ -107,14 +107,13 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler) * event. * ******************************************************************************/ - acpi_status acpi_install_fixed_event_handler(u32 event, acpi_event_handler handler, void *context) { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_install_fixed_event_handler"); + ACPI_FUNCTION_TRACE(acpi_install_fixed_event_handler); /* Parameter validation */ @@ -161,7 +160,7 @@ acpi_install_fixed_event_handler(u32 event, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_install_fixed_event_handler); +ACPI_EXPORT_SYMBOL(acpi_install_fixed_event_handler) /******************************************************************************* * @@ -175,13 +174,12 @@ EXPORT_SYMBOL(acpi_install_fixed_event_handler); * DESCRIPTION: Disables the event and unregisters the event handler. * ******************************************************************************/ - acpi_status acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("acpi_remove_fixed_event_handler"); + ACPI_FUNCTION_TRACE(acpi_remove_fixed_event_handler); /* Parameter validation */ @@ -216,7 +214,7 @@ acpi_remove_fixed_event_handler(u32 event, acpi_event_handler handler) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_remove_fixed_event_handler); +ACPI_EXPORT_SYMBOL(acpi_remove_fixed_event_handler) /******************************************************************************* * @@ -235,7 +233,6 @@ EXPORT_SYMBOL(acpi_remove_fixed_event_handler); * DESCRIPTION: Install a handler for notifies on an ACPI device * ******************************************************************************/ - acpi_status acpi_install_notify_handler(acpi_handle device, u32 handler_type, @@ -246,7 +243,7 @@ acpi_install_notify_handler(acpi_handle device, struct acpi_namespace_node *node; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_install_notify_handler"); + ACPI_FUNCTION_TRACE(acpi_install_notify_handler); /* Parameter validation */ @@ -275,6 +272,7 @@ acpi_install_notify_handler(acpi_handle device, * only one <external> global handler can be regsitered (per notify type). */ if (device == ACPI_ROOT_OBJECT) { + /* Make sure the handler is not already installed */ if (((handler_type & ACPI_SYSTEM_NOTIFY) && @@ -317,6 +315,7 @@ acpi_install_notify_handler(acpi_handle device, obj_desc = acpi_ns_get_attached_object(node); if (obj_desc) { + /* Object exists - make sure there's no handler */ if (((handler_type & ACPI_SYSTEM_NOTIFY) && @@ -370,6 +369,7 @@ acpi_install_notify_handler(acpi_handle device, } if (handler_type == ACPI_ALL_NOTIFY) { + /* Extra ref if installed in both */ acpi_ut_add_reference(notify_obj); @@ -381,7 +381,7 @@ acpi_install_notify_handler(acpi_handle device, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_install_notify_handler); +ACPI_EXPORT_SYMBOL(acpi_install_notify_handler) /******************************************************************************* * @@ -399,7 +399,6 @@ EXPORT_SYMBOL(acpi_install_notify_handler); * DESCRIPTION: Remove a handler for notifies on an ACPI device * ******************************************************************************/ - acpi_status acpi_remove_notify_handler(acpi_handle device, u32 handler_type, acpi_notify_handler handler) @@ -409,7 +408,7 @@ acpi_remove_notify_handler(acpi_handle device, struct acpi_namespace_node *node; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_remove_notify_handler"); + ACPI_FUNCTION_TRACE(acpi_remove_notify_handler); /* Parameter validation */ @@ -535,7 +534,7 @@ acpi_remove_notify_handler(acpi_handle device, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_remove_notify_handler); +ACPI_EXPORT_SYMBOL(acpi_remove_notify_handler) /******************************************************************************* * @@ -554,7 +553,6 @@ EXPORT_SYMBOL(acpi_remove_notify_handler); * DESCRIPTION: Install a handler for a General Purpose Event. * ******************************************************************************/ - acpi_status acpi_install_gpe_handler(acpi_handle gpe_device, u32 gpe_number, @@ -565,7 +563,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device, acpi_status status; acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE("acpi_install_gpe_handler"); + ACPI_FUNCTION_TRACE(acpi_install_gpe_handler); /* Parameter validation */ @@ -596,7 +594,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device, /* Allocate and init handler object */ - handler = ACPI_MEM_CALLOCATE(sizeof(struct acpi_handler_info)); + handler = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_handler_info)); if (!handler) { status = AE_NO_MEMORY; goto unlock_and_exit; @@ -630,7 +628,7 @@ acpi_install_gpe_handler(acpi_handle gpe_device, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_install_gpe_handler); +ACPI_EXPORT_SYMBOL(acpi_install_gpe_handler) /******************************************************************************* * @@ -646,7 +644,6 @@ EXPORT_SYMBOL(acpi_install_gpe_handler); * DESCRIPTION: Remove a handler for a General Purpose acpi_event. * ******************************************************************************/ - acpi_status acpi_remove_gpe_handler(acpi_handle gpe_device, u32 gpe_number, acpi_event_handler address) @@ -656,7 +653,7 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, acpi_status status; acpi_cpu_flags flags; - ACPI_FUNCTION_TRACE("acpi_remove_gpe_handler"); + ACPI_FUNCTION_TRACE(acpi_remove_gpe_handler); /* Parameter validation */ @@ -724,14 +721,14 @@ acpi_remove_gpe_handler(acpi_handle gpe_device, /* Now we can free the handler object */ - ACPI_MEM_FREE(handler); + ACPI_FREE(handler); unlock_and_exit: (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_remove_gpe_handler); +ACPI_EXPORT_SYMBOL(acpi_remove_gpe_handler) /******************************************************************************* * @@ -746,7 +743,6 @@ EXPORT_SYMBOL(acpi_remove_gpe_handler); * DESCRIPTION: Acquire the ACPI Global Lock * ******************************************************************************/ - acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle) { acpi_status status; @@ -771,7 +767,7 @@ acpi_status acpi_acquire_global_lock(u16 timeout, u32 * handle) return (status); } -EXPORT_SYMBOL(acpi_acquire_global_lock); +ACPI_EXPORT_SYMBOL(acpi_acquire_global_lock) /******************************************************************************* * @@ -784,7 +780,6 @@ EXPORT_SYMBOL(acpi_acquire_global_lock); * DESCRIPTION: Release the ACPI Global Lock. The handle must be valid. * ******************************************************************************/ - acpi_status acpi_release_global_lock(u32 handle) { acpi_status status; @@ -797,4 +792,4 @@ acpi_status acpi_release_global_lock(u32 handle) return (status); } -EXPORT_SYMBOL(acpi_release_global_lock); +ACPI_EXPORT_SYMBOL(acpi_release_global_lock) diff --git a/drivers/acpi/events/evxfevnt.c b/drivers/acpi/events/evxfevnt.c index ec9ce8429f15..7ebc2efac936 100644 --- a/drivers/acpi/events/evxfevnt.c +++ b/drivers/acpi/events/evxfevnt.c @@ -41,8 +41,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acevents.h> #include <acpi/acnamesp.h> @@ -65,7 +63,7 @@ acpi_status acpi_enable(void) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("acpi_enable"); + ACPI_FUNCTION_TRACE(acpi_enable); /* Make sure we have the FADT */ @@ -94,6 +92,8 @@ acpi_status acpi_enable(void) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_enable) + /******************************************************************************* * * FUNCTION: acpi_disable @@ -105,12 +105,11 @@ acpi_status acpi_enable(void) * DESCRIPTION: Transfers the system into LEGACY (non-ACPI) mode. * ******************************************************************************/ - acpi_status acpi_disable(void) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("acpi_disable"); + ACPI_FUNCTION_TRACE(acpi_disable); if (!acpi_gbl_FADT) { ACPI_WARNING((AE_INFO, "No FADT information present!")); @@ -137,6 +136,8 @@ acpi_status acpi_disable(void) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_disable) + /******************************************************************************* * * FUNCTION: acpi_enable_event @@ -149,13 +150,12 @@ acpi_status acpi_disable(void) * DESCRIPTION: Enable an ACPI event (fixed) * ******************************************************************************/ - acpi_status acpi_enable_event(u32 event, u32 flags) { acpi_status status = AE_OK; u32 value; - ACPI_FUNCTION_TRACE("acpi_enable_event"); + ACPI_FUNCTION_TRACE(acpi_enable_event); /* Decode the Fixed Event */ @@ -193,7 +193,7 @@ acpi_status acpi_enable_event(u32 event, u32 flags) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_enable_event); +ACPI_EXPORT_SYMBOL(acpi_enable_event) /******************************************************************************* * @@ -208,13 +208,12 @@ EXPORT_SYMBOL(acpi_enable_event); * DESCRIPTION: Set the type of an individual GPE * ******************************************************************************/ - acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type) { acpi_status status = AE_OK; struct acpi_gpe_event_info *gpe_event_info; - ACPI_FUNCTION_TRACE("acpi_set_gpe_type"); + ACPI_FUNCTION_TRACE(acpi_set_gpe_type); /* Ensure that we have a valid GPE number */ @@ -236,7 +235,7 @@ acpi_status acpi_set_gpe_type(acpi_handle gpe_device, u32 gpe_number, u8 type) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_set_gpe_type); +ACPI_EXPORT_SYMBOL(acpi_set_gpe_type) /******************************************************************************* * @@ -252,13 +251,12 @@ EXPORT_SYMBOL(acpi_set_gpe_type); * DESCRIPTION: Enable an ACPI event (general purpose) * ******************************************************************************/ - acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) { acpi_status status = AE_OK; struct acpi_gpe_event_info *gpe_event_info; - ACPI_FUNCTION_TRACE("acpi_enable_gpe"); + ACPI_FUNCTION_TRACE(acpi_enable_gpe); /* Use semaphore lock if not executing at interrupt level */ @@ -288,7 +286,7 @@ acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_enable_gpe); +ACPI_EXPORT_SYMBOL(acpi_enable_gpe) /******************************************************************************* * @@ -304,13 +302,12 @@ EXPORT_SYMBOL(acpi_enable_gpe); * DESCRIPTION: Disable an ACPI event (general purpose) * ******************************************************************************/ - acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) { acpi_status status = AE_OK; struct acpi_gpe_event_info *gpe_event_info; - ACPI_FUNCTION_TRACE("acpi_disable_gpe"); + ACPI_FUNCTION_TRACE(acpi_disable_gpe); /* Use semaphore lock if not executing at interrupt level */ @@ -338,6 +335,8 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_disable_gpe) + /******************************************************************************* * * FUNCTION: acpi_disable_event @@ -350,13 +349,12 @@ acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) * DESCRIPTION: Disable an ACPI event (fixed) * ******************************************************************************/ - acpi_status acpi_disable_event(u32 event, u32 flags) { acpi_status status = AE_OK; u32 value; - ACPI_FUNCTION_TRACE("acpi_disable_event"); + ACPI_FUNCTION_TRACE(acpi_disable_event); /* Decode the Fixed Event */ @@ -392,7 +390,7 @@ acpi_status acpi_disable_event(u32 event, u32 flags) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_disable_event); +ACPI_EXPORT_SYMBOL(acpi_disable_event) /******************************************************************************* * @@ -405,12 +403,11 @@ EXPORT_SYMBOL(acpi_disable_event); * DESCRIPTION: Clear an ACPI event (fixed) * ******************************************************************************/ - acpi_status acpi_clear_event(u32 event) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("acpi_clear_event"); + ACPI_FUNCTION_TRACE(acpi_clear_event); /* Decode the Fixed Event */ @@ -429,7 +426,7 @@ acpi_status acpi_clear_event(u32 event) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_clear_event); +ACPI_EXPORT_SYMBOL(acpi_clear_event) /******************************************************************************* * @@ -444,13 +441,12 @@ EXPORT_SYMBOL(acpi_clear_event); * DESCRIPTION: Clear an ACPI event (general purpose) * ******************************************************************************/ - acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) { acpi_status status = AE_OK; struct acpi_gpe_event_info *gpe_event_info; - ACPI_FUNCTION_TRACE("acpi_clear_gpe"); + ACPI_FUNCTION_TRACE(acpi_clear_gpe); /* Use semaphore lock if not executing at interrupt level */ @@ -478,6 +474,8 @@ acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_clear_gpe) + #ifdef ACPI_FUTURE_USAGE /******************************************************************************* * @@ -492,12 +490,11 @@ acpi_status acpi_clear_gpe(acpi_handle gpe_device, u32 gpe_number, u32 flags) * DESCRIPTION: Obtains and returns the current status of the event * ******************************************************************************/ - acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("acpi_get_event_status"); + ACPI_FUNCTION_TRACE(acpi_get_event_status); if (!event_status) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -518,6 +515,8 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_get_event_status) + /******************************************************************************* * * FUNCTION: acpi_get_gpe_status @@ -533,7 +532,6 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status) * DESCRIPTION: Get status of an event (general purpose) * ******************************************************************************/ - acpi_status acpi_get_gpe_status(acpi_handle gpe_device, u32 gpe_number, u32 flags, acpi_event_status * event_status) @@ -541,7 +539,7 @@ acpi_get_gpe_status(acpi_handle gpe_device, acpi_status status = AE_OK; struct acpi_gpe_event_info *gpe_event_info; - ACPI_FUNCTION_TRACE("acpi_get_gpe_status"); + ACPI_FUNCTION_TRACE(acpi_get_gpe_status); /* Use semaphore lock if not executing at interrupt level */ @@ -570,6 +568,8 @@ acpi_get_gpe_status(acpi_handle gpe_device, } return_ACPI_STATUS(status); } + +ACPI_EXPORT_SYMBOL(acpi_get_gpe_status) #endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* @@ -586,7 +586,6 @@ acpi_get_gpe_status(acpi_handle gpe_device, * DESCRIPTION: Create and Install a block of GPE registers * ******************************************************************************/ - acpi_status acpi_install_gpe_block(acpi_handle gpe_device, struct acpi_generic_address *gpe_block_address, @@ -597,7 +596,7 @@ acpi_install_gpe_block(acpi_handle gpe_device, struct acpi_namespace_node *node; struct acpi_gpe_block_info *gpe_block; - ACPI_FUNCTION_TRACE("acpi_install_gpe_block"); + ACPI_FUNCTION_TRACE(acpi_install_gpe_block); if ((!gpe_device) || (!gpe_block_address) || (!register_count)) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -636,6 +635,7 @@ acpi_install_gpe_block(acpi_handle gpe_device, obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { + /* No object, create a new one */ obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_DEVICE); @@ -665,7 +665,7 @@ acpi_install_gpe_block(acpi_handle gpe_device, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_install_gpe_block); +ACPI_EXPORT_SYMBOL(acpi_install_gpe_block) /******************************************************************************* * @@ -678,14 +678,13 @@ EXPORT_SYMBOL(acpi_install_gpe_block); * DESCRIPTION: Remove a previously installed block of GPE registers * ******************************************************************************/ - acpi_status acpi_remove_gpe_block(acpi_handle gpe_device) { union acpi_operand_object *obj_desc; acpi_status status; struct acpi_namespace_node *node; - ACPI_FUNCTION_TRACE("acpi_remove_gpe_block"); + ACPI_FUNCTION_TRACE(acpi_remove_gpe_block); if (!gpe_device) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -721,4 +720,4 @@ acpi_status acpi_remove_gpe_block(acpi_handle gpe_device) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_remove_gpe_block); +ACPI_EXPORT_SYMBOL(acpi_remove_gpe_block) diff --git a/drivers/acpi/events/evxfregn.c b/drivers/acpi/events/evxfregn.c index abf5caca9ae5..e8b86a0baad0 100644 --- a/drivers/acpi/events/evxfregn.c +++ b/drivers/acpi/events/evxfregn.c @@ -42,8 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acnamesp.h> #include <acpi/acevents.h> @@ -75,7 +73,7 @@ acpi_install_address_space_handler(acpi_handle device, struct acpi_namespace_node *node; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_install_address_space_handler"); + ACPI_FUNCTION_TRACE(acpi_install_address_space_handler); /* Parameter validation */ @@ -114,7 +112,7 @@ acpi_install_address_space_handler(acpi_handle device, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_install_address_space_handler); +ACPI_EXPORT_SYMBOL(acpi_install_address_space_handler) /******************************************************************************* * @@ -129,7 +127,6 @@ EXPORT_SYMBOL(acpi_install_address_space_handler); * DESCRIPTION: Remove a previously installed handler. * ******************************************************************************/ - acpi_status acpi_remove_address_space_handler(acpi_handle device, acpi_adr_space_type space_id, @@ -142,7 +139,7 @@ acpi_remove_address_space_handler(acpi_handle device, struct acpi_namespace_node *node; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_remove_address_space_handler"); + ACPI_FUNCTION_TRACE(acpi_remove_address_space_handler); /* Parameter validation */ @@ -176,9 +173,11 @@ acpi_remove_address_space_handler(acpi_handle device, handler_obj = obj_desc->device.handler; last_obj_ptr = &obj_desc->device.handler; while (handler_obj) { + /* We have a handler, see if user requested this one */ if (handler_obj->address_space.space_id == space_id) { + /* Matched space_id, first dereference this in the Regions */ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, @@ -229,7 +228,7 @@ acpi_remove_address_space_handler(acpi_handle device, /* The handler does not exist */ ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, - "Unable to remove address handler %p for %s(%X), dev_node %p, obj %p\n", + "Unable to remove address handler %p for %s(%X), DevNode %p, obj %p\n", handler, acpi_ut_get_region_name(space_id), space_id, node, obj_desc)); @@ -240,4 +239,4 @@ acpi_remove_address_space_handler(acpi_handle device, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_remove_address_space_handler); +ACPI_EXPORT_SYMBOL(acpi_remove_address_space_handler) diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c index a29782fe3ecf..823352435e08 100644 --- a/drivers/acpi/executer/exconfig.c +++ b/drivers/acpi/executer/exconfig.c @@ -82,7 +82,7 @@ acpi_ex_add_table(struct acpi_table_header *table, struct acpi_table_desc table_info; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE("ex_add_table"); + ACPI_FUNCTION_TRACE(ex_add_table); /* Create an object to be the table handle */ @@ -100,7 +100,7 @@ acpi_ex_add_table(struct acpi_table_header *table, ACPI_MEMSET(&table_info, 0, sizeof(struct acpi_table_desc)); - table_info.type = ACPI_TABLE_SSDT; + table_info.type = ACPI_TABLE_ID_SSDT; table_info.pointer = table; table_info.length = (acpi_size) table->length; table_info.allocation = ACPI_MEM_ALLOCATED; @@ -110,6 +110,7 @@ acpi_ex_add_table(struct acpi_table_header *table, if (ACPI_FAILURE(status)) { if (status == AE_ALREADY_EXISTS) { + /* Table already exists, just return the handle */ return_ACPI_STATUS(AE_OK); @@ -121,6 +122,7 @@ acpi_ex_add_table(struct acpi_table_header *table, status = acpi_ns_load_table(table_info.installed_desc, parent_node); if (ACPI_FAILURE(status)) { + /* Uninstall table on error */ (void)acpi_tb_uninstall_table(table_info.installed_desc); @@ -160,7 +162,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, struct acpi_namespace_node *parameter_node = NULL; union acpi_operand_object *ddb_handle; - ACPI_FUNCTION_TRACE("ex_load_table_op"); + ACPI_FUNCTION_TRACE(ex_load_table_op); #if 0 /* @@ -169,6 +171,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, */ status = acpi_tb_match_signature(operand[0]->string.pointer, NULL); if (status == AE_OK) { + /* Signature matched -- don't allow override */ return_ACPI_STATUS(AE_ALREADY_EXISTS); @@ -211,9 +214,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, * location within the namespace where the table will be loaded. */ status = - acpi_ns_get_node_by_path(operand[3]->string.pointer, - start_node, ACPI_NS_SEARCH_PARENT, - &parent_node); + acpi_ns_get_node(start_node, operand[3]->string.pointer, + ACPI_NS_SEARCH_PARENT, &parent_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -234,9 +236,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, /* Find the node referenced by the parameter_path_string */ status = - acpi_ns_get_node_by_path(operand[4]->string.pointer, - start_node, ACPI_NS_SEARCH_PARENT, - ¶meter_node); + acpi_ns_get_node(start_node, operand[4]->string.pointer, + ACPI_NS_SEARCH_PARENT, ¶meter_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -252,6 +253,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, /* Parameter Data (optional) */ if (parameter_node) { + /* Store the parameter data into the optional parameter object */ status = acpi_ex_store(operand[5], @@ -294,9 +296,10 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, struct acpi_table_header *table_ptr = NULL; acpi_physical_address address; struct acpi_table_header table_header; + acpi_integer temp; u32 i; - ACPI_FUNCTION_TRACE("ex_load_op"); + ACPI_FUNCTION_TRACE(ex_load_op); /* Object can be either an op_region or a Field */ @@ -322,7 +325,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, address = obj_desc->region.address; - /* Get the table length from the table header */ + /* Get part of the table header to get the table length */ table_header.length = 0; for (i = 0; i < 8; i++) { @@ -330,11 +333,14 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, acpi_ev_address_space_dispatch(obj_desc, ACPI_READ, (acpi_physical_address) (i + address), 8, - ((u8 *) & - table_header) + i); + &temp); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } + + /* Get the one valid byte of the returned 64-bit value */ + + ACPI_CAST_PTR(u8, &table_header)[i] = (u8) temp; } /* Sanity check the table length */ @@ -345,7 +351,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, /* Allocate a buffer for the entire table */ - table_ptr = ACPI_MEM_ALLOCATE(table_header.length); + table_ptr = ACPI_ALLOCATE(table_header.length); if (!table_ptr) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -357,11 +363,14 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, acpi_ev_address_space_dispatch(obj_desc, ACPI_READ, (acpi_physical_address) (i + address), 8, - ((u8 *) table_ptr + - i)); + &temp); if (ACPI_FAILURE(status)) { goto cleanup; } + + /* Get the one valid byte of the returned 64-bit value */ + + ACPI_CAST_PTR(u8, table_ptr)[i] = (u8) temp; } break; @@ -407,12 +416,8 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, /* The table must be either an SSDT or a PSDT */ - if ((!ACPI_STRNCMP(table_ptr->signature, - acpi_gbl_table_data[ACPI_TABLE_PSDT].signature, - acpi_gbl_table_data[ACPI_TABLE_PSDT].sig_length)) && - (!ACPI_STRNCMP(table_ptr->signature, - acpi_gbl_table_data[ACPI_TABLE_SSDT].signature, - acpi_gbl_table_data[ACPI_TABLE_SSDT].sig_length))) { + if ((!ACPI_COMPARE_NAME(table_ptr->signature, PSDT_SIG)) && + (!ACPI_COMPARE_NAME(table_ptr->signature, SSDT_SIG))) { ACPI_ERROR((AE_INFO, "Table has invalid signature [%4.4s], must be SSDT or PSDT", table_ptr->signature)); @@ -424,6 +429,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, status = acpi_ex_add_table(table_ptr, acpi_gbl_root_node, &ddb_handle); if (ACPI_FAILURE(status)) { + /* On error, table_ptr was deallocated above */ return_ACPI_STATUS(status); @@ -442,7 +448,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, cleanup: if (ACPI_FAILURE(status)) { - ACPI_MEM_FREE(table_ptr); + ACPI_FREE(table_ptr); } return_ACPI_STATUS(status); } @@ -465,7 +471,7 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) union acpi_operand_object *table_desc = ddb_handle; struct acpi_table_desc *table_info; - ACPI_FUNCTION_TRACE("ex_unload_table"); + ACPI_FUNCTION_TRACE(ex_unload_table); /* * Validate the handle diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c index e6d52e12d77a..b732e399b1ef 100644 --- a/drivers/acpi/executer/exconvrt.c +++ b/drivers/acpi/executer/exconvrt.c @@ -79,7 +79,7 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, u32 count; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ex_convert_to_integer", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc); switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_INTEGER: @@ -199,7 +199,7 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc, union acpi_operand_object *return_desc; u8 *new_buf; - ACPI_FUNCTION_TRACE_PTR("ex_convert_to_buffer", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc); switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_BUFFER: @@ -319,6 +319,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer, remainder = 0; for (i = decimal_length; i > 0; i--) { + /* Divide by nth factor of 10 */ digit = integer; @@ -346,6 +347,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer, hex_length = (acpi_native_uint) ACPI_MUL_2(data_width); for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) { + /* Get one hex digit, most significant digits first */ string[k] = @@ -400,7 +402,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc, u16 base = 16; u8 separator = ','; - ACPI_FUNCTION_TRACE_PTR("ex_convert_to_string", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc); switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_STRING: @@ -567,7 +569,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_convert_to_target_type"); + ACPI_FUNCTION_TRACE(ex_convert_to_target_type); /* Default behavior */ @@ -657,7 +659,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, default: ACPI_ERROR((AE_INFO, - "Unknown Target type ID 0x%X aml_opcode %X dest_type %s", + "Unknown Target type ID 0x%X AmlOpcode %X DestType %s", GET_CURRENT_ARG_TYPE(walk_state->op_info-> runtime_args), walk_state->opcode, diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c index 680575402835..106dc7219df7 100644 --- a/drivers/acpi/executer/excreate.c +++ b/drivers/acpi/executer/excreate.c @@ -69,7 +69,7 @@ acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state) struct acpi_namespace_node *alias_node; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_create_alias"); + ACPI_FUNCTION_TRACE(ex_create_alias); /* Get the source/alias operands (both namespace nodes) */ @@ -164,7 +164,7 @@ acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state) acpi_status status; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE("ex_create_event"); + ACPI_FUNCTION_TRACE(ex_create_event); obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT); if (!obj_desc) { @@ -216,7 +216,7 @@ acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE_PTR("ex_create_mutex", ACPI_WALK_OPERANDS); + ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS); /* Create the new mutex object */ @@ -243,8 +243,9 @@ acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) obj_desc->mutex.node = (struct acpi_namespace_node *)walk_state->operands[0]; - status = acpi_ns_attach_object(obj_desc->mutex.node, - obj_desc, ACPI_TYPE_MUTEX); + status = + acpi_ns_attach_object(obj_desc->mutex.node, obj_desc, + ACPI_TYPE_MUTEX); cleanup: /* @@ -280,7 +281,7 @@ acpi_ex_create_region(u8 * aml_start, struct acpi_namespace_node *node; union acpi_operand_object *region_obj2; - ACPI_FUNCTION_TRACE("ex_create_region"); + ACPI_FUNCTION_TRACE(ex_create_region); /* Get the Namespace Node */ @@ -300,7 +301,7 @@ acpi_ex_create_region(u8 * aml_start, */ if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && (region_space < ACPI_USER_REGION_BEGIN)) { - ACPI_ERROR((AE_INFO, "Invalid address_space type %X", + ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X", region_space)); return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); } @@ -364,7 +365,7 @@ acpi_status acpi_ex_create_table_region(struct acpi_walk_state *walk_state) struct acpi_table_header *table; union acpi_operand_object *region_obj2; - ACPI_FUNCTION_TRACE("ex_create_table_region"); + ACPI_FUNCTION_TRACE(ex_create_table_region); /* Get the Node from the object stack */ @@ -452,7 +453,7 @@ acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ex_create_processor", walk_state); + ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state); /* Create the processor object */ @@ -464,9 +465,9 @@ acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) /* Initialize the processor object from the operands */ obj_desc->processor.proc_id = (u8) operand[1]->integer.value; + obj_desc->processor.length = (u8) operand[3]->integer.value; obj_desc->processor.address = (acpi_io_address) operand[2]->integer.value; - obj_desc->processor.length = (u8) operand[3]->integer.value; /* Install the processor object in the parent Node */ @@ -499,7 +500,7 @@ acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state) acpi_status status; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE_PTR("ex_create_power_resource", walk_state); + ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state); /* Create the power resource object */ @@ -549,7 +550,7 @@ acpi_ex_create_method(u8 * aml_start, acpi_status status; u8 method_flags; - ACPI_FUNCTION_TRACE_PTR("ex_create_method", walk_state); + ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state); /* Create a new method object */ diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c index a7cca8d4f855..7b9718e976bf 100644 --- a/drivers/acpi/executer/exdump.c +++ b/drivers/acpi/executer/exdump.c @@ -61,6 +61,10 @@ static void acpi_ex_out_pointer(char *title, void *value); static void acpi_ex_out_address(char *title, acpi_physical_address value); +static void +acpi_ex_dump_object(union acpi_operand_object *obj_desc, + struct acpi_exdump_info *info); + static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc); static void @@ -119,7 +123,7 @@ static struct acpi_exdump_info acpi_ex_dump_event[2] = { static struct acpi_exdump_info acpi_ex_dump_method[8] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "param_count"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.concurrency), "Concurrency"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.semaphore), "Semaphore"}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"}, @@ -263,12 +267,10 @@ static struct acpi_exdump_info acpi_ex_dump_field_common[7] = { {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(common_field.node), "Parent Node"} }; -static struct acpi_exdump_info acpi_ex_dump_node[6] = { +static struct acpi_exdump_info acpi_ex_dump_node[5] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL}, {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"}, {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"}, - {ACPI_EXD_UINT16, ACPI_EXD_NSOFFSET(reference_count), - "Reference Count"}, {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(child), "Child List"}, {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(peer), "Next Peer"} }; @@ -330,7 +332,7 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, if (!info) { acpi_os_printf - ("ex_dump_object: Display not implemented for object type %s\n", + ("ExDumpObject: Display not implemented for object type %s\n", acpi_ut_get_object_type_name(obj_desc)); return; } @@ -454,7 +456,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) u32 length; u32 index; - ACPI_FUNCTION_NAME("ex_dump_operand") + ACPI_FUNCTION_NAME(ex_dump_operand) if (! ((ACPI_LV_EXEC & acpi_dbg_level) @@ -463,6 +465,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) } if (!obj_desc) { + /* This could be a null element of a package */ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n")); @@ -522,7 +525,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) case AML_REF_OF_OP: - acpi_os_printf("Reference: (ref_of) %p\n", + acpi_os_printf("Reference: (RefOf) %p\n", obj_desc->reference.object); break; @@ -532,6 +535,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) obj_desc->reference.offset); if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + /* Value is an Integer */ acpi_os_printf(" value is [%8.8X%8.8x]", @@ -610,7 +614,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) case ACPI_TYPE_PACKAGE: - acpi_os_printf("Package [Len %X] element_array %p\n", + acpi_os_printf("Package [Len %X] ElementArray %p\n", obj_desc->package.count, obj_desc->package.elements); @@ -662,13 +666,13 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) case ACPI_TYPE_LOCAL_BANK_FIELD: - acpi_os_printf("bank_field\n"); + acpi_os_printf("BankField\n"); break; case ACPI_TYPE_LOCAL_REGION_FIELD: acpi_os_printf - ("region_field: Bits=%X acc_width=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n", + ("RegionField: Bits=%X AccWidth=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n", obj_desc->field.bit_length, obj_desc->field.access_byte_width, obj_desc->field.field_flags & AML_FIELD_LOCK_RULE_MASK, @@ -681,12 +685,12 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) case ACPI_TYPE_LOCAL_INDEX_FIELD: - acpi_os_printf("index_field\n"); + acpi_os_printf("IndexField\n"); break; case ACPI_TYPE_BUFFER_FIELD: - acpi_os_printf("buffer_field: %X bits at byte %X bit %X of\n", + acpi_os_printf("BufferField: %X bits at byte %X bit %X of\n", obj_desc->buffer_field.bit_length, obj_desc->buffer_field.base_byte_offset, obj_desc->buffer_field.start_field_bit_offset); @@ -777,7 +781,7 @@ acpi_ex_dump_operands(union acpi_operand_object **operands, { acpi_native_uint i; - ACPI_FUNCTION_NAME("ex_dump_operands"); + ACPI_FUNCTION_NAME(ex_dump_operands); if (!ident) { ident = "?"; @@ -901,7 +905,7 @@ static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc) acpi_os_printf("Could not convert name to pathname\n"); } else { acpi_os_printf("%s\n", (char *)ret_buf.pointer); - ACPI_MEM_FREE(ret_buf.pointer); + ACPI_FREE(ret_buf.pointer); } } else if (obj_desc->reference.object) { acpi_os_printf("\nReferenced Object: %p\n", @@ -1017,7 +1021,7 @@ acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc, void acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags) { - ACPI_FUNCTION_TRACE("ex_dump_object_descriptor"); + ACPI_FUNCTION_TRACE(ex_dump_object_descriptor); if (!obj_desc) { return_VOID; @@ -1046,7 +1050,7 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags) if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) { acpi_os_printf - ("ex_dump_object_descriptor: %p is not an ACPI operand object: [%s]\n", + ("ExDumpObjectDescriptor: %p is not an ACPI operand object: [%s]\n", obj_desc, acpi_ut_get_descriptor_name(obj_desc)); return_VOID; } diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c index e259201ce9a0..9ea9c3a67ca9 100644 --- a/drivers/acpi/executer/exfield.c +++ b/drivers/acpi/executer/exfield.c @@ -73,7 +73,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, void *buffer; u8 locked; - ACPI_FUNCTION_TRACE_PTR("ex_read_data_from_field", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc); /* Parameter validation */ @@ -142,6 +142,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, length = (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length); if (length > acpi_gbl_integer_byte_width) { + /* Field is too large for an Integer, create a Buffer instead */ buffer_desc = acpi_ut_create_buffer_object(length); @@ -163,11 +164,11 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, } ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "field_read [TO]: Obj %p, Type %X, Buf %p, byte_len %X\n", + "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n", obj_desc, ACPI_GET_OBJECT_TYPE(obj_desc), buffer, (u32) length)); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "field_read [FROM]: bit_len %X, bit_off %X, byte_off %X\n", + "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n", obj_desc->common_field.bit_length, obj_desc->common_field.start_field_bit_offset, obj_desc->common_field.base_byte_offset)); @@ -219,7 +220,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, u8 locked; union acpi_operand_object *buffer_desc; - ACPI_FUNCTION_TRACE_PTR("ex_write_data_to_field", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc); /* Parameter validation */ @@ -329,9 +330,10 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length); if (length < required_length) { + /* We need to create a new buffer */ - new_buffer = ACPI_MEM_CALLOCATE(required_length); + new_buffer = ACPI_ALLOCATE_ZEROED(required_length); if (!new_buffer) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -347,14 +349,14 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, } ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "field_write [FROM]: Obj %p (%s:%X), Buf %p, byte_len %X\n", + "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n", source_desc, acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE (source_desc)), ACPI_GET_OBJECT_TYPE(source_desc), buffer, length)); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "field_write [TO]: Obj %p (%s:%X), bit_len %X, bit_off %X, byte_off %X\n", + "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n", obj_desc, acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)), ACPI_GET_OBJECT_TYPE(obj_desc), @@ -375,7 +377,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, /* Free temporary buffer if we used one */ if (new_buffer) { - ACPI_MEM_FREE(new_buffer); + ACPI_FREE(new_buffer); } return_ACPI_STATUS(status); diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c index bd1af35f7fcf..051053f7cccb 100644 --- a/drivers/acpi/executer/exfldio.c +++ b/drivers/acpi/executer/exfldio.c @@ -87,7 +87,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, acpi_status status = AE_OK; union acpi_operand_object *rgn_desc; - ACPI_FUNCTION_TRACE_U32("ex_setup_region", field_datum_byte_offset); + ACPI_FUNCTION_TRACE_U32(ex_setup_region, field_datum_byte_offset); rgn_desc = obj_desc->common_field.region_obj; @@ -112,7 +112,18 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, } } + /* Exit if Address/Length have been disallowed by the host OS */ + + if (rgn_desc->common.flags & AOPOBJ_INVALID) { + return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS); + } + + /* + * Exit now for SMBus address space, it has a non-linear address space + * and the request cannot be directly validated + */ if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) { + /* SMBus has a non-linear address space */ return_ACPI_STATUS(AE_OK); @@ -134,10 +145,10 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, * length of one field datum (access width) must fit within the region. * (Region length is specified in bytes) */ - if (rgn_desc->region.length < (obj_desc->common_field.base_byte_offset + - field_datum_byte_offset + - obj_desc->common_field. - access_byte_width)) { + if (rgn_desc->region.length < + (obj_desc->common_field.base_byte_offset + + field_datum_byte_offset + + obj_desc->common_field.access_byte_width)) { if (acpi_gbl_enable_interpreter_slack) { /* * Slack mode only: We will go ahead and allow access to this @@ -217,7 +228,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc, union acpi_operand_object *rgn_desc; acpi_physical_address address; - ACPI_FUNCTION_TRACE("ex_access_region"); + ACPI_FUNCTION_TRACE(ex_access_region); /* * Ensure that the region operands are fully evaluated and verify @@ -246,7 +257,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc, } ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD, - " Region [%s:%X], Width %X, byte_base %X, Offset %X at %8.8X%8.8X\n", + " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %8.8X%8.8X\n", acpi_ut_get_region_name(rgn_desc->region. space_id), rgn_desc->region.space_id, @@ -352,7 +363,7 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, acpi_status status; acpi_integer local_value; - ACPI_FUNCTION_TRACE_U32("ex_field_datum_io", field_datum_byte_offset); + ACPI_FUNCTION_TRACE_U32(ex_field_datum_io, field_datum_byte_offset); if (read_write == ACPI_READ) { if (!value) { @@ -487,10 +498,11 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, } ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "I/O to Data Register: value_ptr %p\n", + "I/O to Data Register: ValuePtr %p\n", value)); if (read_write == ACPI_READ) { + /* Read the datum from the data_register */ status = @@ -559,7 +571,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, acpi_integer merged_value; acpi_integer current_value; - ACPI_FUNCTION_TRACE_U32("ex_write_with_update_rule", mask); + ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask); /* Start with the new bits */ @@ -568,6 +580,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, /* If the mask is all ones, we don't need to worry about the update rule */ if (mask != ACPI_INTEGER_MAX) { + /* Decode the update rule */ switch (obj_desc->common_field. @@ -614,7 +627,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, default: ACPI_ERROR((AE_INFO, - "Unknown update_rule value: %X", + "Unknown UpdateRule value: %X", (obj_desc->common_field. field_flags & AML_FIELD_UPDATE_RULE_MASK))); @@ -623,7 +636,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, } ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Mask %8.8X%8.8X, datum_offset %X, Width %X, Value %8.8X%8.8X, merged_value %8.8X%8.8X\n", + "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n", ACPI_FORMAT_UINT64(mask), field_datum_byte_offset, obj_desc->common_field.access_byte_width, @@ -666,7 +679,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, u32 field_datum_count; u32 i; - ACPI_FUNCTION_TRACE("ex_extract_from_field"); + ACPI_FUNCTION_TRACE(ex_extract_from_field); /* Validate target buffer and clear it */ @@ -704,6 +717,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, /* Read the rest of the field */ for (i = 1; i < field_datum_count; i++) { + /* Get next input datum from the field */ field_offset += obj_desc->common_field.access_byte_width; @@ -771,6 +785,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, { acpi_status status; acpi_integer mask; + acpi_integer width_mask; acpi_integer merged_datum; acpi_integer raw_datum = 0; u32 field_offset = 0; @@ -780,7 +795,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, u32 field_datum_count; u32 i; - ACPI_FUNCTION_TRACE("ex_insert_into_field"); + ACPI_FUNCTION_TRACE(ex_insert_into_field); /* Validate input buffer */ @@ -795,15 +810,20 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, /* Compute the number of datums (access width data items) */ + width_mask = + ACPI_MASK_BITS_ABOVE(obj_desc->common_field.access_bit_width); mask = - ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset); - datum_count = - ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, - obj_desc->common_field.access_bit_width); - field_datum_count = - ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + - obj_desc->common_field.start_field_bit_offset, - obj_desc->common_field.access_bit_width); + width_mask & ACPI_MASK_BITS_BELOW(obj_desc->common_field. + start_field_bit_offset); + + datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, + obj_desc->common_field.access_bit_width); + + field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + + obj_desc->common_field. + start_field_bit_offset, + obj_desc->common_field. + access_bit_width); /* Get initial Datum from the input buffer */ @@ -817,6 +837,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, /* Write the entire field */ for (i = 1; i < field_datum_count; i++) { + /* Write merged datum to the target field */ merged_datum &= mask; @@ -833,7 +854,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, merged_datum = raw_datum >> (obj_desc->common_field.access_bit_width - obj_desc->common_field.start_field_bit_offset); - mask = ACPI_INTEGER_MAX; + mask = width_mask; if (i == datum_count) { break; diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c index 48c18d29222a..bd98aab017cf 100644 --- a/drivers/acpi/executer/exmisc.c +++ b/drivers/acpi/executer/exmisc.c @@ -72,7 +72,7 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, union acpi_operand_object *reference_obj; union acpi_operand_object *referenced_obj; - ACPI_FUNCTION_TRACE_PTR("ex_get_object_reference", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_get_object_reference, obj_desc); *return_desc = NULL; @@ -168,7 +168,7 @@ acpi_ex_concat_template(union acpi_operand_object *operand0, acpi_size length1; acpi_size new_length; - ACPI_FUNCTION_TRACE("ex_concat_template"); + ACPI_FUNCTION_TRACE(ex_concat_template); /* * Find the end_tag descriptor in each resource template. @@ -250,7 +250,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, char *new_buf; acpi_status status; - ACPI_FUNCTION_TRACE("ex_do_concatenate"); + ACPI_FUNCTION_TRACE(ex_do_concatenate); /* * Convert the second operand if necessary. The first operand @@ -445,10 +445,24 @@ acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1) case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result) */ + /* + * We need to check if the shiftcount is larger than the integer bit + * width since the behavior of this is not well-defined in the C language. + */ + if (integer1 >= acpi_gbl_integer_bit_width) { + return (0); + } return (integer0 << integer1); case AML_SHIFT_RIGHT_OP: /* shift_right (Operand, shift_count, Result) */ + /* + * We need to check if the shiftcount is larger than the integer bit + * width since the behavior of this is not well-defined in the C language. + */ + if (integer1 >= acpi_gbl_integer_bit_width) { + return (0); + } return (integer0 >> integer1); case AML_SUBTRACT_OP: /* Subtract (Integer0, Integer1, Result) */ @@ -489,7 +503,7 @@ acpi_ex_do_logical_numeric_op(u16 opcode, acpi_status status = AE_OK; u8 local_result = FALSE; - ACPI_FUNCTION_TRACE("ex_do_logical_numeric_op"); + ACPI_FUNCTION_TRACE(ex_do_logical_numeric_op); switch (opcode) { case AML_LAND_OP: /* LAnd (Integer0, Integer1) */ @@ -557,7 +571,7 @@ acpi_ex_do_logical_op(u16 opcode, u8 local_result = FALSE; int compare; - ACPI_FUNCTION_TRACE("ex_do_logical_op"); + ACPI_FUNCTION_TRACE(ex_do_logical_op); /* * Convert the second operand if necessary. The first operand @@ -649,6 +663,7 @@ acpi_ex_do_logical_op(u16 opcode, /* Length and all bytes must be equal */ if ((length0 == length1) && (compare == 0)) { + /* Length and all bytes match ==> TRUE */ local_result = TRUE; diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c index f843b22e20b9..93098d68cadf 100644 --- a/drivers/acpi/executer/exmutex.c +++ b/drivers/acpi/executer/exmutex.c @@ -61,7 +61,7 @@ acpi_ex_link_mutex(union acpi_operand_object *obj_desc, * * RETURN: None * - * DESCRIPTION: Remove a mutex from the "acquired_mutex" list + * DESCRIPTION: Remove a mutex from the "AcquiredMutex" list * ******************************************************************************/ @@ -95,7 +95,7 @@ void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc) * * RETURN: None * - * DESCRIPTION: Add a mutex to the "acquired_mutex" list for this walk + * DESCRIPTION: Add a mutex to the "AcquiredMutex" list for this walk * ******************************************************************************/ @@ -144,7 +144,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, { acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ex_acquire_mutex", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex, obj_desc); if (!obj_desc) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -165,7 +165,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, */ if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) { ACPI_ERROR((AE_INFO, - "Cannot acquire Mutex [%4.4s], incorrect sync_level", + "Cannot acquire Mutex [%4.4s], incorrect SyncLevel", acpi_ut_get_node_name(obj_desc->mutex.node))); return_ACPI_STATUS(AE_AML_MUTEX_ORDER); } @@ -173,6 +173,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, /* Support for multiple acquires by the owning thread */ if (obj_desc->mutex.owner_thread) { + /* Special case for Global Lock, allow all threads */ if ((obj_desc->mutex.owner_thread->thread_id == @@ -192,6 +193,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, status = acpi_ex_system_acquire_mutex(time_desc, obj_desc); if (ACPI_FAILURE(status)) { + /* Includes failure from a timeout on time_desc */ return_ACPI_STATUS(status); @@ -232,7 +234,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, { acpi_status status; - ACPI_FUNCTION_TRACE("ex_release_mutex"); + ACPI_FUNCTION_TRACE(ex_release_mutex); if (!obj_desc) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -277,7 +279,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, */ if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) { ACPI_ERROR((AE_INFO, - "Cannot release Mutex [%4.4s], incorrect sync_level", + "Cannot release Mutex [%4.4s], incorrect SyncLevel", acpi_ut_get_node_name(obj_desc->mutex.node))); return_ACPI_STATUS(AE_AML_MUTEX_ORDER); } @@ -286,6 +288,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, obj_desc->mutex.acquisition_depth--; if (obj_desc->mutex.acquisition_depth != 0) { + /* Just decrement the depth and return */ return_ACPI_STATUS(AE_OK); diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c index 054fe5e1a314..d3d70364626c 100644 --- a/drivers/acpi/executer/exnames.c +++ b/drivers/acpi/executer/exnames.c @@ -77,7 +77,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) char *name_string; u32 size_needed; - ACPI_FUNCTION_TRACE("ex_allocate_name_string"); + ACPI_FUNCTION_TRACE(ex_allocate_name_string); /* * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix. @@ -85,6 +85,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) * This may actually be somewhat longer than needed. */ if (prefix_count == ACPI_UINT32_MAX) { + /* Special case for root */ size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1; @@ -97,7 +98,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) * Allocate a buffer for the name. * This buffer must be deleted by the caller! */ - name_string = ACPI_MEM_ALLOCATE(size_needed); + name_string = ACPI_ALLOCATE(size_needed); if (!name_string) { ACPI_ERROR((AE_INFO, "Could not allocate size %d", size_needed)); @@ -119,11 +120,13 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) /* Set up Dual or Multi prefixes if needed */ if (num_name_segs > 2) { + /* Set up multi prefixes */ *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP; *temp_ptr++ = (char)num_name_segs; } else if (2 == num_name_segs) { + /* Set up dual prefixes */ *temp_ptr++ = AML_DUAL_NAME_PREFIX; @@ -159,7 +162,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) u32 index; char char_buf[5]; - ACPI_FUNCTION_TRACE("ex_name_segment"); + ACPI_FUNCTION_TRACE(ex_name_segment); /* * If first character is a digit, then we know that we aren't looking at a @@ -176,7 +179,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) for (index = 0; (index < ACPI_NAME_SIZE) - && (acpi_ut_valid_acpi_character(*aml_address)); index++) { + && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) { char_buf[index] = *aml_address++; ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index])); } @@ -184,6 +187,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) /* Valid name segment */ if (index == 4) { + /* Found 4 valid characters */ char_buf[4] = '\0'; @@ -249,11 +253,12 @@ acpi_ex_get_name_string(acpi_object_type data_type, u32 prefix_count = 0; u8 has_prefix = FALSE; - ACPI_FUNCTION_TRACE_PTR("ex_get_name_string", aml_address); + ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address); if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type || ACPI_TYPE_LOCAL_BANK_FIELD == data_type || ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) { + /* Disallow prefixes for types associated with field_unit names */ name_string = acpi_ex_allocate_name_string(0, 1); @@ -272,7 +277,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, case AML_ROOT_PREFIX: ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "root_prefix(\\) at %p\n", + "RootPrefix(\\) at %p\n", aml_address)); /* @@ -290,7 +295,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, do { ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "parent_prefix (^) at %p\n", + "ParentPrefix (^) at %p\n", aml_address)); aml_address++; @@ -314,7 +319,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, case AML_DUAL_NAME_PREFIX: ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "dual_name_prefix at %p\n", + "DualNamePrefix at %p\n", aml_address)); aml_address++; @@ -341,7 +346,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, case AML_MULTI_NAME_PREFIX_OP: ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "multi_name_prefix at %p\n", + "MultiNamePrefix at %p\n", aml_address)); /* Fetch count of segments remaining in name path */ @@ -377,7 +382,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, if (prefix_count == ACPI_UINT32_MAX) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "name_seg is \"\\\" followed by NULL\n")); + "NameSeg is \"\\\" followed by NULL\n")); } /* Consume the NULL byte */ @@ -410,6 +415,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, } if (AE_CTRL_PENDING == status && has_prefix) { + /* Ran out of segments after processing a prefix */ ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string)); @@ -418,7 +424,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, if (ACPI_FAILURE(status)) { if (name_string) { - ACPI_MEM_FREE(name_string); + ACPI_FREE(name_string); } return_ACPI_STATUS(status); } diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c index 23d0823bcd5e..6374d8be88e0 100644 --- a/drivers/acpi/executer/exoparg1.c +++ b/drivers/acpi/executer/exoparg1.c @@ -89,7 +89,7 @@ acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; union acpi_operand_object *return_desc = NULL; - ACPI_FUNCTION_TRACE_STR("ex_opcode_0A_0T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_0A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -150,7 +150,7 @@ acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) union acpi_operand_object **operand = &walk_state->operands[0]; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_0T_0R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_0R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -216,7 +216,7 @@ acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; union acpi_operand_object **operand = &walk_state->operands[0]; - ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_1T_0R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_0R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -264,7 +264,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) acpi_integer power_of_ten; acpi_integer digit; - ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_1T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -322,8 +322,9 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) /* Since the bit position is one-based, subtract from 33 (65) */ - return_desc->integer.value = temp32 == 0 ? 0 : - (ACPI_INTEGER_BIT_SIZE + 1) - temp32; + return_desc->integer.value = + temp32 == + 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32; break; case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */ @@ -342,6 +343,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) for (i = 0; (i < acpi_gbl_integer_nybble_width) && (digit > 0); i++) { + /* Get the least significant 4-bit BCD digit */ temp32 = ((u32) digit) & 0xF; @@ -487,6 +489,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_convert_to_string(operand[0], &return_desc, ACPI_EXPLICIT_CONVERT_DECIMAL); if (return_desc == operand[0]) { + /* No conversion performed, add ref to handle return value */ acpi_ut_add_reference(return_desc); } @@ -497,6 +500,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_convert_to_string(operand[0], &return_desc, ACPI_EXPLICIT_CONVERT_HEX); if (return_desc == operand[0]) { + /* No conversion performed, add ref to handle return value */ acpi_ut_add_reference(return_desc); } @@ -506,6 +510,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_convert_to_buffer(operand[0], &return_desc); if (return_desc == operand[0]) { + /* No conversion performed, add ref to handle return value */ acpi_ut_add_reference(return_desc); } @@ -516,6 +521,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_convert_to_integer(operand[0], &return_desc, ACPI_ANY_BASE); if (return_desc == operand[0]) { + /* No conversion performed, add ref to handle return value */ acpi_ut_add_reference(return_desc); } @@ -541,6 +547,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) } if (ACPI_SUCCESS(status)) { + /* Store the return value computed above into the target object */ status = acpi_ex_store(return_desc, operand[1], walk_state); @@ -548,16 +555,18 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) cleanup: - if (!walk_state->result_obj) { - walk_state->result_obj = return_desc; - } - /* Delete return object on error */ if (ACPI_FAILURE(status)) { acpi_ut_remove_reference(return_desc); } + /* Save return object on success */ + + else if (!walk_state->result_obj) { + walk_state->result_obj = return_desc; + } + return_ACPI_STATUS(status); } @@ -582,7 +591,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) u32 type; acpi_integer value; - ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_0T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -625,6 +634,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) temp_desc = operand[0]; if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) == ACPI_DESC_TYPE_OPERAND) { + /* Internal reference object - prevent deletion */ acpi_ut_add_reference(temp_desc); @@ -689,6 +699,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) if (ACPI_FAILURE(status)) { goto cleanup; } + /* Allocate a descriptor to hold the type. */ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); @@ -777,8 +788,25 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) /* Check for a method local or argument, or standalone String */ - if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) != + if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) == ACPI_DESC_TYPE_NAMED) { + temp_desc = + acpi_ns_get_attached_object((struct + acpi_namespace_node *) + operand[0]); + if (temp_desc + && + ((ACPI_GET_OBJECT_TYPE(temp_desc) == + ACPI_TYPE_STRING) + || (ACPI_GET_OBJECT_TYPE(temp_desc) == + ACPI_TYPE_LOCAL_REFERENCE))) { + operand[0] = temp_desc; + acpi_ut_add_reference(temp_desc); + } else { + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + } else { switch (ACPI_GET_OBJECT_TYPE(operand[0])) { case ACPI_TYPE_LOCAL_REFERENCE: /* @@ -827,26 +855,35 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) break; case ACPI_TYPE_STRING: + break; + default: + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + } + + if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) != + ACPI_DESC_TYPE_NAMED) { + if (ACPI_GET_OBJECT_TYPE(operand[0]) == + ACPI_TYPE_STRING) { /* * This is a deref_of (String). The string is a reference * to a named ACPI object. * * 1) Find the owning Node - * 2) Dereference the node to an actual object. Could be a + * 2) Dereference the node to an actual object. Could be a * Field, so we need to resolve the node to a value. */ status = - acpi_ns_get_node_by_path(operand[0]->string. - pointer, - walk_state-> - scope_info->scope. - node, - ACPI_NS_SEARCH_PARENT, - ACPI_CAST_INDIRECT_PTR - (struct - acpi_namespace_node, - &return_desc)); + acpi_ns_get_node(walk_state->scope_info-> + scope.node, + operand[0]->string.pointer, + ACPI_NS_SEARCH_PARENT, + ACPI_CAST_INDIRECT_PTR + (struct + acpi_namespace_node, + &return_desc)); if (ACPI_FAILURE(status)) { goto cleanup; } @@ -857,11 +894,6 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) (struct acpi_namespace_node, &return_desc), walk_state); goto cleanup; - - default: - - status = AE_AML_OPERAND_TYPE; - goto cleanup; } } @@ -937,13 +969,12 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) acpi_ut_add_reference (return_desc); } - break; default: ACPI_ERROR((AE_INFO, - "Unknown Index target_type %X in obj %p", + "Unknown Index TargetType %X in obj %p", operand[0]->reference. target_type, operand[0])); status = AE_AML_OPERAND_TYPE; @@ -957,7 +988,6 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) if (ACPI_GET_DESCRIPTOR_TYPE(return_desc) == ACPI_DESC_TYPE_NAMED) { - return_desc = acpi_ns_get_attached_object((struct acpi_namespace_node @@ -972,7 +1002,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) default: ACPI_ERROR((AE_INFO, - "Unknown opcode in ref(%p) - %X", + "Unknown opcode in reference(%p) - %X", operand[0], operand[0]->reference.opcode)); @@ -998,6 +1028,11 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) acpi_ut_remove_reference(return_desc); } - walk_state->result_obj = return_desc; + /* Save return object on success */ + + else { + walk_state->result_obj = return_desc; + } + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/executer/exoparg2.c b/drivers/acpi/executer/exoparg2.c index e263a5ddd405..7d2cbc113160 100644 --- a/drivers/acpi/executer/exoparg2.c +++ b/drivers/acpi/executer/exoparg2.c @@ -92,7 +92,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) u32 value; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_0T_0R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the opcode */ @@ -121,7 +121,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) #ifdef ACPI_GPE_NOTIFY_CHECK /* * GPE method wake/notify check. Here, we want to ensure that we - * don't receive any "device_wake" Notifies from a GPE _Lxx or _Exx + * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx * GPE method during system runtime. If we do, the GPE is marked * as "wake-only" and disabled. * @@ -138,6 +138,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) acpi_ev_check_for_wake_only_gpe(walk_state-> gpe_event_info); if (ACPI_FAILURE(status)) { + /* AE_WAKE_ONLY_GPE only error, means ignore this notify */ return_ACPI_STATUS(AE_OK) @@ -185,7 +186,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) union acpi_operand_object *return_desc2 = NULL; acpi_status status; - ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_2T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Execute the opcode */ @@ -252,6 +253,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) acpi_ut_remove_reference(return_desc2); if (ACPI_FAILURE(status)) { + /* Delete the return object */ acpi_ut_remove_reference(return_desc1); @@ -281,12 +283,13 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; acpi_size length; - ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_1T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Execute the opcode */ if (walk_state->op_info->flags & AML_MATH) { + /* All simple math opcodes (add, etc.) */ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); @@ -383,54 +386,70 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) goto cleanup; } + /* Initialize the Index reference object */ + index = operand[1]->integer.value; + return_desc->reference.offset = (u32) index; + return_desc->reference.opcode = AML_INDEX_OP; - /* At this point, the Source operand is a Package, Buffer, or String */ + /* + * At this point, the Source operand is a String, Buffer, or Package. + * Verify that the index is within range. + */ + switch (ACPI_GET_OBJECT_TYPE(operand[0])) { + case ACPI_TYPE_STRING: - if (ACPI_GET_OBJECT_TYPE(operand[0]) == ACPI_TYPE_PACKAGE) { - /* Object to be indexed is a Package */ + if (index >= operand[0]->string.length) { + status = AE_AML_STRING_LIMIT; + } + + return_desc->reference.target_type = + ACPI_TYPE_BUFFER_FIELD; + break; + + case ACPI_TYPE_BUFFER: + + if (index >= operand[0]->buffer.length) { + status = AE_AML_BUFFER_LIMIT; + } + + return_desc->reference.target_type = + ACPI_TYPE_BUFFER_FIELD; + break; + + case ACPI_TYPE_PACKAGE: if (index >= operand[0]->package.count) { - ACPI_ERROR((AE_INFO, - "Index value (%X%8.8X) beyond package end (%X)", - ACPI_FORMAT_UINT64(index), - operand[0]->package.count)); status = AE_AML_PACKAGE_LIMIT; - goto cleanup; } return_desc->reference.target_type = ACPI_TYPE_PACKAGE; - return_desc->reference.object = operand[0]; return_desc->reference.where = &operand[0]->package.elements[index]; - } else { - /* Object to be indexed is a Buffer/String */ + break; - if (index >= operand[0]->buffer.length) { - ACPI_ERROR((AE_INFO, - "Index value (%X%8.8X) beyond end of buffer (%X)", - ACPI_FORMAT_UINT64(index), - operand[0]->buffer.length)); - status = AE_AML_BUFFER_LIMIT; - goto cleanup; - } + default: - return_desc->reference.target_type = - ACPI_TYPE_BUFFER_FIELD; - return_desc->reference.object = operand[0]; + status = AE_AML_INTERNAL; + goto cleanup; + } + + /* Failure means that the Index was beyond the end of the object */ + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Index (%X%8.8X) is beyond end of object", + ACPI_FORMAT_UINT64(index))); + goto cleanup; } /* - * Add a reference to the target package/buffer/string for the life - * of the index. + * Save the target object and add a reference to it for the life + * of the index */ + return_desc->reference.object = operand[0]; acpi_ut_add_reference(operand[0]); - /* Complete the Index reference object */ - - return_desc->reference.opcode = AML_INDEX_OP; - return_desc->reference.offset = (u32) index; - /* Store the reference to the Target */ status = acpi_ex_store(return_desc, operand[2], walk_state); @@ -495,7 +514,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; u8 logical_result = FALSE; - ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_0T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Create the internal return object */ @@ -509,6 +528,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) /* Execute the Opcode */ if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) { + /* logical_op (Operand0, Operand1) */ status = acpi_ex_do_logical_numeric_op(walk_state->opcode, @@ -518,6 +538,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) value, &logical_result); goto store_logical_result; } else if (walk_state->op_info->flags & AML_LOGICAL) { + /* logical_op (Operand0, Operand1) */ status = acpi_ex_do_logical_op(walk_state->opcode, operand[0], diff --git a/drivers/acpi/executer/exoparg3.c b/drivers/acpi/executer/exoparg3.c index 6a3a883cb8a3..e2d945dfd509 100644 --- a/drivers/acpi/executer/exoparg3.c +++ b/drivers/acpi/executer/exoparg3.c @@ -88,20 +88,19 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state) struct acpi_signal_fatal_info *fatal; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_STR("ex_opcode_3A_0T_0R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_0T_0R, acpi_ps_get_opcode_name(walk_state->opcode)); switch (walk_state->opcode) { case AML_FATAL_OP: /* Fatal (fatal_type fatal_code fatal_arg) */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "fatal_op: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n", + "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n", (u32) operand[0]->integer.value, (u32) operand[1]->integer.value, (u32) operand[2]->integer.value)); - fatal = - ACPI_MEM_ALLOCATE(sizeof(struct acpi_signal_fatal_info)); + fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info)); if (fatal) { fatal->type = (u32) operand[0]->integer.value; fatal->code = (u32) operand[1]->integer.value; @@ -114,7 +113,7 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state) /* Might return while OS is shutting down, just continue */ - ACPI_MEM_FREE(fatal); + ACPI_FREE(fatal); break; default: @@ -151,7 +150,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) acpi_integer index; acpi_size length; - ACPI_FUNCTION_TRACE_STR("ex_opcode_3A_1T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); switch (walk_state->opcode) { @@ -196,7 +195,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) /* Always allocate a new buffer for the String */ - buffer = ACPI_MEM_CALLOCATE((acpi_size) length + 1); + buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1); if (!buffer) { status = AE_NO_MEMORY; goto cleanup; @@ -208,9 +207,10 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) /* If the requested length is zero, don't allocate a buffer */ if (length > 0) { + /* Allocate a new buffer for the Buffer */ - buffer = ACPI_MEM_CALLOCATE(length); + buffer = ACPI_ALLOCATE_ZEROED(length); if (!buffer) { status = AE_NO_MEMORY; goto cleanup; @@ -225,6 +225,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) } if (buffer) { + /* We have a buffer, copy the portion requested */ ACPI_MEMCPY(buffer, operand[0]->string.pointer + index, diff --git a/drivers/acpi/executer/exoparg6.c b/drivers/acpi/executer/exoparg6.c index e043d924444f..f0c0ba6eb408 100644 --- a/drivers/acpi/executer/exoparg6.c +++ b/drivers/acpi/executer/exoparg6.c @@ -220,7 +220,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) acpi_integer index; union acpi_operand_object *this_element; - ACPI_FUNCTION_TRACE_STR("ex_opcode_6A_0T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_6A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); switch (walk_state->opcode) { @@ -276,6 +276,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) * match was found. */ for (; index < operand[0]->package.count; index++) { + /* Get the current package element */ this_element = operand[0]->package.elements[index]; diff --git a/drivers/acpi/executer/exprep.c b/drivers/acpi/executer/exprep.c index 7719ae5d4f16..44d064f427b9 100644 --- a/drivers/acpi/executer/exprep.c +++ b/drivers/acpi/executer/exprep.c @@ -97,7 +97,7 @@ acpi_ex_generate_access(u32 field_bit_offset, u32 minimum_accesses = 0xFFFFFFFF; u32 accesses; - ACPI_FUNCTION_TRACE("ex_generate_access"); + ACPI_FUNCTION_TRACE(ex_generate_access); /* Round Field start offset and length to "minimal" byte boundaries */ @@ -146,7 +146,7 @@ acpi_ex_generate_access(u32 field_bit_offset, accesses = field_end_offset - field_start_offset; ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "access_width %d end is within region\n", + "AccessWidth %d end is within region\n", access_byte_width)); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, @@ -173,7 +173,7 @@ acpi_ex_generate_access(u32 field_bit_offset, } } else { ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "access_width %d end is NOT within region\n", + "AccessWidth %d end is NOT within region\n", access_byte_width)); if (access_byte_width == 1) { ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, @@ -228,7 +228,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc, u32 byte_alignment; u32 bit_length; - ACPI_FUNCTION_TRACE("ex_decode_field_access"); + ACPI_FUNCTION_TRACE(ex_decode_field_access); access = (field_flags & AML_FIELD_ACCESS_TYPE_MASK); @@ -322,7 +322,7 @@ acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc, u32 byte_alignment; u32 nearest_byte_address; - ACPI_FUNCTION_TRACE("ex_prep_common_field_object"); + ACPI_FUNCTION_TRACE(ex_prep_common_field_object); /* * Note: the structure being initialized is the @@ -415,13 +415,13 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) u32 type; acpi_status status; - ACPI_FUNCTION_TRACE("ex_prep_field_value"); + ACPI_FUNCTION_TRACE(ex_prep_field_value); /* Parameter validation */ if (info->field_type != ACPI_TYPE_LOCAL_INDEX_FIELD) { if (!info->region_node) { - ACPI_ERROR((AE_INFO, "Null region_node")); + ACPI_ERROR((AE_INFO, "Null RegionNode")); return_ACPI_STATUS(AE_AML_NO_OPERAND); } @@ -467,7 +467,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ut_add_reference(obj_desc->field.region_obj); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "region_field: bit_off %X, Off %X, Gran %X, Region %p\n", + "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n", obj_desc->field.start_field_bit_offset, obj_desc->field.base_byte_offset, obj_desc->field.access_byte_width, @@ -488,7 +488,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ut_add_reference(obj_desc->bank_field.bank_obj); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Bank Field: bit_off %X, Off %X, Gran %X, Region %p, bank_reg %p\n", + "Bank Field: BitOff %X, Off %X, Gran %X, Region %p, BankReg %p\n", obj_desc->bank_field.start_field_bit_offset, obj_desc->bank_field.base_byte_offset, obj_desc->field.access_byte_width, @@ -519,16 +519,29 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ut_add_reference(obj_desc->index_field.index_obj); /* + * April 2006: Changed to match MS behavior + * * The value written to the Index register is the byte offset of the - * target field - * Note: may change code to: ACPI_DIV_8 (Info->field_bit_position) + * target field in units of the granularity of the index_field + * + * Previously, the value was calculated as an index in terms of the + * width of the Data register, as below: + * + * obj_desc->index_field.Value = (u32) + * (Info->field_bit_position / ACPI_MUL_8 ( + * obj_desc->Field.access_byte_width)); + * + * February 2006: Tried value as a byte offset: + * obj_desc->index_field.Value = (u32) + * ACPI_DIV_8 (Info->field_bit_position); */ - obj_desc->index_field.value = (u32) - (info->field_bit_position / - ACPI_MUL_8(obj_desc->field.access_byte_width)); + obj_desc->index_field.value = + (u32) ACPI_ROUND_DOWN(ACPI_DIV_8(info->field_bit_position), + obj_desc->index_field. + access_byte_width); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "index_field: bit_off %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n", + "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n", obj_desc->index_field.start_field_bit_offset, obj_desc->index_field.base_byte_offset, obj_desc->index_field.value, @@ -550,7 +563,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ns_get_type(info->field_node)); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Set named_obj %p [%4.4s], obj_desc %p\n", + "Set NamedObj %p [%4.4s], ObjDesc %p\n", info->field_node, acpi_ut_get_node_name(info->field_node), obj_desc)); diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c index 6a4cfdff606d..3cc97ba48b36 100644 --- a/drivers/acpi/executer/exregion.c +++ b/drivers/acpi/executer/exregion.c @@ -81,7 +81,7 @@ acpi_ex_system_memory_space_handler(u32 function, u32 remainder; #endif - ACPI_FUNCTION_TRACE("ex_system_memory_space_handler"); + ACPI_FUNCTION_TRACE(ex_system_memory_space_handler); /* Validate and translate the bit width */ @@ -103,7 +103,7 @@ acpi_ex_system_memory_space_handler(u32 function, break; default: - ACPI_ERROR((AE_INFO, "Invalid system_memory width %d", + ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d", bit_width)); return_ACPI_STATUS(AE_AML_OPERAND_VALUE); } @@ -135,6 +135,7 @@ acpi_ex_system_memory_space_handler(u32 function, * Delete the existing mapping and create a new one. */ if (mem_info->mapped_length) { + /* Valid mapping, delete it */ acpi_os_unmap_memory(mem_info->mapped_logical_address, @@ -181,8 +182,8 @@ acpi_ex_system_memory_space_handler(u32 function, (acpi_integer) mem_info->mapped_physical_address); ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "system_memory %d (%d width) Address=%8.8X%8.8X\n", - function, bit_width, ACPI_FORMAT_UINT64(address))); + "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n", + bit_width, function, ACPI_FORMAT_UINT64(address))); /* * Perform the memory read or write @@ -283,11 +284,11 @@ acpi_ex_system_io_space_handler(u32 function, acpi_status status = AE_OK; u32 value32; - ACPI_FUNCTION_TRACE("ex_system_io_space_handler"); + ACPI_FUNCTION_TRACE(ex_system_io_space_handler); ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "system_iO %d (%d width) Address=%8.8X%8.8X\n", - function, bit_width, ACPI_FORMAT_UINT64(address))); + "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n", + bit_width, function, ACPI_FORMAT_UINT64(address))); /* Decode the function parameter */ @@ -342,7 +343,7 @@ acpi_ex_pci_config_space_handler(u32 function, struct acpi_pci_id *pci_id; u16 pci_register; - ACPI_FUNCTION_TRACE("ex_pci_config_space_handler"); + ACPI_FUNCTION_TRACE(ex_pci_config_space_handler); /* * The arguments to acpi_os(Read|Write)pci_configuration are: @@ -360,7 +361,7 @@ acpi_ex_pci_config_space_handler(u32 function, pci_register = (u16) (u32) address; ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "pci_config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", + "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", function, bit_width, pci_id->segment, pci_id->bus, pci_id->device, pci_id->function, pci_register)); @@ -414,7 +415,7 @@ acpi_ex_cmos_space_handler(u32 function, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_cmos_space_handler"); + ACPI_FUNCTION_TRACE(ex_cmos_space_handler); return_ACPI_STATUS(status); } @@ -446,7 +447,7 @@ acpi_ex_pci_bar_space_handler(u32 function, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_pci_bar_space_handler"); + ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler); return_ACPI_STATUS(status); } @@ -476,23 +477,16 @@ acpi_ex_data_table_space_handler(u32 function, acpi_integer * value, void *handler_context, void *region_context) { - acpi_status status = AE_OK; - u32 byte_width = ACPI_DIV_8(bit_width); - u32 i; - char *logical_addr_ptr; - - ACPI_FUNCTION_TRACE("ex_data_table_space_handler"); - - logical_addr_ptr = ACPI_PHYSADDR_TO_PTR(address); + ACPI_FUNCTION_TRACE(ex_data_table_space_handler); /* Perform the memory read or write */ switch (function) { case ACPI_READ: - for (i = 0; i < byte_width; i++) { - ((char *)value)[i] = logical_addr_ptr[i]; - } + ACPI_MEMCPY(ACPI_CAST_PTR(char, value), + ACPI_PHYSADDR_TO_PTR(address), + ACPI_DIV_8(bit_width)); break; case ACPI_WRITE: @@ -501,5 +495,5 @@ acpi_ex_data_table_space_handler(u32 function, return_ACPI_STATUS(AE_SUPPORT); } - return_ACPI_STATUS(status); + return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/executer/exresnte.c b/drivers/acpi/executer/exresnte.c index 01b26c80d22b..3089b05a1368 100644 --- a/drivers/acpi/executer/exresnte.c +++ b/drivers/acpi/executer/exresnte.c @@ -87,7 +87,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, struct acpi_namespace_node *node; acpi_object_type entry_type; - ACPI_FUNCTION_TRACE("ex_resolve_node_to_value"); + ACPI_FUNCTION_TRACE(ex_resolve_node_to_value); /* * The stack pointer points to a struct acpi_namespace_node (Node). Get the @@ -97,12 +97,13 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, source_desc = acpi_ns_get_attached_object(node); entry_type = acpi_ns_get_type((acpi_handle) node); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p source_desc=%p [%s]\n", + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n", node, source_desc, acpi_ut_get_type_name(entry_type))); if ((entry_type == ACPI_TYPE_LOCAL_ALIAS) || (entry_type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { + /* There is always exactly one level of indirection */ node = ACPI_CAST_PTR(struct acpi_namespace_node, node->object); @@ -113,10 +114,11 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, /* * Several object types require no further processing: - * 1) Devices rarely have an attached object, return the Node + * 1) Device/Thermal objects don't have a "real" subobject, return the Node * 2) Method locals and arguments have a pseudo-Node */ - if (entry_type == ACPI_TYPE_DEVICE || + if ((entry_type == ACPI_TYPE_DEVICE) || + (entry_type == ACPI_TYPE_THERMAL) || (node->flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) { return_ACPI_STATUS(AE_OK); } @@ -141,6 +143,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, status = acpi_ds_get_package_arguments(source_desc); if (ACPI_SUCCESS(status)) { + /* Return an additional reference to the object */ obj_desc = source_desc; @@ -158,6 +161,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, status = acpi_ds_get_buffer_arguments(source_desc); if (ACPI_SUCCESS(status)) { + /* Return an additional reference to the object */ obj_desc = source_desc; @@ -199,7 +203,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, case ACPI_TYPE_LOCAL_INDEX_FIELD: ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "field_read Node=%p source_desc=%p Type=%X\n", + "FieldRead Node=%p SourceDesc=%p Type=%X\n", node, source_desc, entry_type)); status = @@ -213,7 +217,6 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, case ACPI_TYPE_METHOD: case ACPI_TYPE_POWER: case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: case ACPI_TYPE_EVENT: case ACPI_TYPE_REGION: @@ -240,6 +243,8 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, /* This is a ddb_handle */ /* Return an additional reference to the object */ + case AML_REF_OF_OP: + obj_desc = source_desc; acpi_ut_add_reference(obj_desc); break; diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c index 1deed492fe88..6499de878017 100644 --- a/drivers/acpi/executer/exresolv.c +++ b/drivers/acpi/executer/exresolv.c @@ -78,7 +78,7 @@ acpi_ex_resolve_to_value(union acpi_operand_object **stack_ptr, { acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ex_resolve_to_value", stack_ptr); + ACPI_FUNCTION_TRACE_PTR(ex_resolve_to_value, stack_ptr); if (!stack_ptr || !*stack_ptr) { ACPI_ERROR((AE_INFO, "Internal - null pointer")); @@ -144,7 +144,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, union acpi_operand_object *obj_desc; u16 opcode; - ACPI_FUNCTION_TRACE("ex_resolve_object_to_value"); + ACPI_FUNCTION_TRACE(ex_resolve_object_to_value); stack_desc = *stack_ptr; @@ -190,7 +190,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, } ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Arg/Local %X] value_obj is %p\n", + "[Arg/Local %X] ValueObj is %p\n", stack_desc->reference.offset, obj_desc)); @@ -239,7 +239,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, /* Invalid reference object */ ACPI_ERROR((AE_INFO, - "Unknown target_type %X in Index/Reference obj %p", + "Unknown TargetType %X in Index/Reference obj %p", stack_desc->reference.target_type, stack_desc)); status = AE_AML_INTERNAL; @@ -257,10 +257,24 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, case AML_INT_NAMEPATH_OP: /* Reference to a named object */ - /* Get the object pointed to by the namespace node */ + /* Dereference the name */ + + if ((stack_desc->reference.node->type == + ACPI_TYPE_DEVICE) + || (stack_desc->reference.node->type == + ACPI_TYPE_THERMAL)) { + + /* These node types do not have 'real' subobjects */ + + *stack_ptr = (void *)stack_desc->reference.node; + } else { + /* Get the object pointed to by the namespace node */ + + *stack_ptr = + (stack_desc->reference.node)->object; + acpi_ut_add_reference(*stack_ptr); + } - *stack_ptr = (stack_desc->reference.node)->object; - acpi_ut_add_reference(*stack_ptr); acpi_ut_remove_reference(stack_desc); break; @@ -293,7 +307,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, case ACPI_TYPE_LOCAL_INDEX_FIELD: ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "field_read source_desc=%p Type=%X\n", + "FieldRead SourceDesc=%p Type=%X\n", stack_desc, ACPI_GET_OBJECT_TYPE(stack_desc))); @@ -337,7 +351,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, acpi_object_type type; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_ex_resolve_multiple"); + ACPI_FUNCTION_TRACE(acpi_ex_resolve_multiple); /* Operand can be either a namespace node or an operand descriptor */ @@ -382,10 +396,16 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) { switch (obj_desc->reference.opcode) { case AML_REF_OF_OP: + case AML_INT_NAMEPATH_OP: /* Dereference the reference pointer */ - node = obj_desc->reference.object; + if (obj_desc->reference.opcode == AML_REF_OF_OP) { + node = obj_desc->reference.object; + } else { /* AML_INT_NAMEPATH_OP */ + + node = obj_desc->reference.node; + } /* All "References" point to a NS node */ @@ -401,6 +421,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { + /* No object, use the NS node type */ type = acpi_ns_get_type(node); @@ -432,6 +453,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, */ obj_desc = *(obj_desc->reference.where); if (!obj_desc) { + /* NULL package elements are allowed */ type = 0; /* Uninitialized */ @@ -439,39 +461,6 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, } break; - case AML_INT_NAMEPATH_OP: - - /* Dereference the reference pointer */ - - node = obj_desc->reference.node; - - /* All "References" point to a NS node */ - - if (ACPI_GET_DESCRIPTOR_TYPE(node) != - ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]", - node, - acpi_ut_get_descriptor_name(node))); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* Get the attached object */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - /* No object, use the NS node type */ - - type = acpi_ns_get_type(node); - goto exit; - } - - /* Check for circular references */ - - if (obj_desc == operand) { - return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE); - } - break; - case AML_LOCAL_OP: case AML_ARG_OP: @@ -513,7 +502,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, case AML_DEBUG_OP: - /* The Debug Object is of type "debug_object" */ + /* The Debug Object is of type "DebugObject" */ type = ACPI_TYPE_DEBUG_OBJECT; goto exit; diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c index a1c000f5a415..4c93d0972333 100644 --- a/drivers/acpi/executer/exresop.c +++ b/drivers/acpi/executer/exresop.c @@ -77,6 +77,7 @@ acpi_ex_check_object_type(acpi_object_type type_needed, ACPI_FUNCTION_ENTRY(); if (type_needed == ACPI_TYPE_ANY) { + /* All types OK, so we don't perform any typechecks */ return (AE_OK); @@ -143,7 +144,7 @@ acpi_ex_resolve_operands(u16 opcode, acpi_object_type type_needed; u16 target_op = 0; - ACPI_FUNCTION_TRACE_U32("ex_resolve_operands", opcode); + ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode); op_info = acpi_ps_get_opcode_info(opcode); if (op_info->class == AML_CLASS_UNKNOWN) { @@ -158,7 +159,7 @@ acpi_ex_resolve_operands(u16 opcode, } ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Opcode %X [%s] required_operand_types=%8.8X\n", + "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", opcode, op_info->name, arg_types)); /* @@ -224,6 +225,7 @@ acpi_ex_resolve_operands(u16 opcode, } if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) { + /* Decode the Reference */ op_info = acpi_ps_get_opcode_info(opcode); @@ -247,7 +249,7 @@ acpi_ex_resolve_operands(u16 opcode, ACPI_DEBUG_ONLY_MEMBERS(ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "Operand is a Reference, ref_opcode [%s]\n", + "Operand is a Reference, RefOpcode [%s]\n", (acpi_ps_get_opcode_info (obj_desc-> reference. @@ -332,6 +334,7 @@ acpi_ex_resolve_operands(u16 opcode, } if (obj_desc->reference.opcode == AML_NAME_OP) { + /* Convert a named reference to the actual named object */ temp_node = obj_desc->reference.object; @@ -623,7 +626,7 @@ acpi_ex_resolve_operands(u16 opcode, default: ACPI_ERROR((AE_INFO, - "Needed [Region/region_field], found [%s] %p", + "Needed [Region/RegionField], found [%s] %p", acpi_ut_get_object_type_name (obj_desc), obj_desc)); @@ -662,6 +665,7 @@ acpi_ex_resolve_operands(u16 opcode, } if (target_op == AML_DEBUG_OP) { + /* Allow store of any object to the Debug object */ break; diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c index 3f020c0e2b95..0456405ba019 100644 --- a/drivers/acpi/executer/exstore.c +++ b/drivers/acpi/executer/exstore.c @@ -82,7 +82,7 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc, { u32 i; - ACPI_FUNCTION_TRACE_PTR("ex_do_debug_object", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc); ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s", level, " ")); @@ -245,7 +245,7 @@ acpi_ex_store(union acpi_operand_object *source_desc, acpi_status status = AE_OK; union acpi_operand_object *ref_desc = dest_desc; - ACPI_FUNCTION_TRACE_PTR("ex_store", dest_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store, dest_desc); /* Validate parameters */ @@ -297,7 +297,7 @@ acpi_ex_store(union acpi_operand_object *source_desc, ACPI_DUMP_STACK_ENTRY(source_desc); ACPI_DUMP_STACK_ENTRY(dest_desc); - ACPI_DUMP_OPERANDS(&dest_desc, ACPI_IMODE_EXECUTE, "ex_store", + ACPI_DUMP_OPERANDS(&dest_desc, ACPI_IMODE_EXECUTE, "ExStore", 2, "Target is not a Reference or Constant object"); @@ -396,7 +396,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, u8 value = 0; u32 i; - ACPI_FUNCTION_TRACE("ex_store_object_to_index"); + ACPI_FUNCTION_TRACE(ex_store_object_to_index); /* * Destination must be a reference pointer, and @@ -423,6 +423,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, } if (obj_desc) { + /* Decrement reference count by the ref count of the parent package */ for (i = 0; i < ((union acpi_operand_object *) @@ -502,8 +503,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, break; default: - ACPI_ERROR((AE_INFO, - "Target is not a Package or buffer_field")); + ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField")); status = AE_AML_OPERAND_TYPE; break; } @@ -548,7 +548,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, union acpi_operand_object *new_desc; acpi_object_type target_type; - ACPI_FUNCTION_TRACE_PTR("ex_store_object_to_node", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_node, source_desc); /* Get current type of the node, and object attached to Node */ @@ -572,6 +572,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, /* If no implicit conversion, drop into the default case below */ if ((!implicit_conversion) || (walk_state->opcode == AML_COPY_OP)) { + /* Force execution of default (no implicit conversion) */ target_type = ACPI_TYPE_ANY; diff --git a/drivers/acpi/executer/exstoren.c b/drivers/acpi/executer/exstoren.c index 42967baf760d..591aaf0e18b3 100644 --- a/drivers/acpi/executer/exstoren.c +++ b/drivers/acpi/executer/exstoren.c @@ -72,7 +72,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, union acpi_operand_object *source_desc = *source_desc_ptr; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_resolve_object"); + ACPI_FUNCTION_TRACE(ex_resolve_object); /* Ensure we have a Target that can be stored to */ @@ -97,6 +97,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, */ if (ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_LOCAL_REFERENCE) { + /* Resolve a reference object first */ status = @@ -121,6 +122,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, !((ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_LOCAL_REFERENCE) && (source_desc->reference.opcode == AML_LOAD_OP))) { + /* Conversion successful but still not a valid type */ ACPI_ERROR((AE_INFO, @@ -199,7 +201,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc, union acpi_operand_object *actual_src_desc; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_PTR("ex_store_object_to_object", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_object, source_desc); actual_src_desc = source_desc; if (!dest_desc) { @@ -289,6 +291,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc, } if (actual_src_desc != source_desc) { + /* Delete the intermediate (temporary) source object */ acpi_ut_remove_reference(actual_src_desc); diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c index 6ab707087750..99ebe5adfcda 100644 --- a/drivers/acpi/executer/exstorob.c +++ b/drivers/acpi/executer/exstorob.c @@ -67,7 +67,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, u32 length; u8 *buffer; - ACPI_FUNCTION_TRACE_PTR("ex_store_buffer_to_buffer", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc); /* We know that source_desc is a buffer by now */ @@ -80,7 +80,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, */ if ((target_desc->buffer.length == 0) || (target_desc->common.flags & AOPOBJ_STATIC_POINTER)) { - target_desc->buffer.pointer = ACPI_MEM_ALLOCATE(length); + target_desc->buffer.pointer = ACPI_ALLOCATE(length); if (!target_desc->buffer.pointer) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -91,6 +91,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, /* Copy source buffer to target buffer */ if (length <= target_desc->buffer.length) { + /* Clear existing buffer and copy in the new one */ ACPI_MEMSET(target_desc->buffer.pointer, 0, @@ -102,7 +103,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, * NOTE: ACPI versions up to 3.0 specified that the buffer must be * truncated if the string is smaller than the buffer. However, "other" * implementations of ACPI never did this and thus became the defacto - * standard. ACPi 3.0_a changes this behavior such that the buffer + * standard. ACPI 3.0_a changes this behavior such that the buffer * is no longer truncated. */ @@ -113,6 +114,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, * copy must not truncate the original buffer. */ if (original_src_type == ACPI_TYPE_STRING) { + /* Set the new length of the target */ target_desc->buffer.length = length; @@ -156,7 +158,7 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, u32 length; u8 *buffer; - ACPI_FUNCTION_TRACE_PTR("ex_store_string_to_string", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc); /* We know that source_desc is a string by now */ @@ -183,13 +185,14 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, */ if (target_desc->string.pointer && (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) { + /* Only free if not a pointer into the DSDT */ - ACPI_MEM_FREE(target_desc->string.pointer); + ACPI_FREE(target_desc->string.pointer); } - target_desc->string.pointer = ACPI_MEM_CALLOCATE((acpi_size) - length + 1); + target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size) + length + 1); if (!target_desc->string.pointer) { return_ACPI_STATUS(AE_NO_MEMORY); } diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c index ea9144f42e1f..52beee3674a0 100644 --- a/drivers/acpi/executer/exsystem.c +++ b/drivers/acpi/executer/exsystem.c @@ -68,7 +68,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout) acpi_status status; acpi_status status2; - ACPI_FUNCTION_TRACE("ex_system_wait_semaphore"); + ACPI_FUNCTION_TRACE(ex_system_wait_semaphore); status = acpi_os_wait_semaphore(semaphore, 1, 0); if (ACPI_SUCCESS(status)) { @@ -76,6 +76,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout) } if (status == AE_TIME) { + /* We must wait, so unlock the interpreter */ acpi_ex_exit_interpreter(); @@ -90,6 +91,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout) status2 = acpi_ex_enter_interpreter(); if (ACPI_FAILURE(status2)) { + /* Report fatal error, could not acquire interpreter */ return_ACPI_STATUS(status2); @@ -191,7 +193,7 @@ acpi_ex_system_acquire_mutex(union acpi_operand_object * time_desc, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_PTR("ex_system_acquire_mutex", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_system_acquire_mutex, obj_desc); if (!obj_desc) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -229,7 +231,7 @@ acpi_status acpi_ex_system_release_mutex(union acpi_operand_object *obj_desc) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_system_release_mutex"); + ACPI_FUNCTION_TRACE(ex_system_release_mutex); if (!obj_desc) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -263,7 +265,7 @@ acpi_status acpi_ex_system_signal_event(union acpi_operand_object *obj_desc) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_system_signal_event"); + ACPI_FUNCTION_TRACE(ex_system_signal_event); if (obj_desc) { status = acpi_os_signal_semaphore(obj_desc->event.semaphore, 1); @@ -293,7 +295,7 @@ acpi_ex_system_wait_event(union acpi_operand_object *time_desc, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_system_wait_event"); + ACPI_FUNCTION_TRACE(ex_system_wait_event); if (obj_desc) { status = diff --git a/drivers/acpi/executer/exutils.c b/drivers/acpi/executer/exutils.c index f73a61aeb7ec..982c8b65876f 100644 --- a/drivers/acpi/executer/exutils.c +++ b/drivers/acpi/executer/exutils.c @@ -87,9 +87,9 @@ acpi_status acpi_ex_enter_interpreter(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ex_enter_interpreter"); + ACPI_FUNCTION_TRACE(ex_enter_interpreter); - status = acpi_ut_acquire_mutex(ACPI_MTX_EXECUTE); + status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex")); } @@ -123,9 +123,9 @@ void acpi_ex_exit_interpreter(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ex_exit_interpreter"); + ACPI_FUNCTION_TRACE(ex_exit_interpreter); - status = acpi_ut_release_mutex(ACPI_MTX_EXECUTE); + status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, "Could not release interpreter mutex")); } @@ -189,11 +189,12 @@ u8 acpi_ex_acquire_global_lock(u32 field_flags) u8 locked = FALSE; acpi_status status; - ACPI_FUNCTION_TRACE("ex_acquire_global_lock"); + ACPI_FUNCTION_TRACE(ex_acquire_global_lock); /* Only attempt lock if the always_lock bit is set */ if (field_flags & AML_FIELD_LOCK_RULE_MASK) { + /* We should attempt to get the lock, wait forever */ status = acpi_ev_acquire_global_lock(ACPI_WAIT_FOREVER); @@ -225,15 +226,17 @@ void acpi_ex_release_global_lock(u8 locked_by_me) { acpi_status status; - ACPI_FUNCTION_TRACE("ex_release_global_lock"); + ACPI_FUNCTION_TRACE(ex_release_global_lock); /* Only attempt unlock if the caller locked it */ if (locked_by_me) { + /* OK, now release the lock */ status = acpi_ev_release_global_lock(); if (ACPI_FAILURE(status)) { + /* Report the error, but there isn't much else we can do */ ACPI_EXCEPTION((AE_INFO, status, @@ -263,7 +266,7 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base) u32 num_digits; acpi_integer current_value; - ACPI_FUNCTION_TRACE("ex_digits_needed"); + ACPI_FUNCTION_TRACE(ex_digits_needed); /* acpi_integer is unsigned, so we don't worry about a '-' prefix */ diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index e8165c4f162a..1cd25784b7a4 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -48,6 +48,8 @@ MODULE_LICENSE("GPL"); static int acpi_fan_add(struct acpi_device *device); static int acpi_fan_remove(struct acpi_device *device, int type); +static int acpi_fan_suspend(struct acpi_device *device, int state); +static int acpi_fan_resume(struct acpi_device *device, int state); static struct acpi_driver acpi_fan_driver = { .name = ACPI_FAN_DRIVER_NAME, @@ -56,6 +58,8 @@ static struct acpi_driver acpi_fan_driver = { .ops = { .add = acpi_fan_add, .remove = acpi_fan_remove, + .suspend = acpi_fan_suspend, + .resume = acpi_fan_resume, }, }; @@ -206,6 +210,10 @@ static int acpi_fan_add(struct acpi_device *device) goto end; } + device->flags.force_power_state = 1; + acpi_bus_set_power(device->handle, state); + device->flags.force_power_state = 0; + result = acpi_fan_add_fs(device); if (result) goto end; @@ -239,6 +247,38 @@ static int acpi_fan_remove(struct acpi_device *device, int type) return_VALUE(0); } +static int acpi_fan_suspend(struct acpi_device *device, int state) +{ + if (!device) + return -EINVAL; + + acpi_bus_set_power(device->handle, ACPI_STATE_D0); + + return AE_OK; +} + +static int acpi_fan_resume(struct acpi_device *device, int state) +{ + int result = 0; + int power_state = 0; + + if (!device) + return -EINVAL; + + result = acpi_bus_get_power(device->handle, &power_state); + if (result) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error reading fan power state\n")); + return result; + } + + device->flags.force_power_state = 1; + acpi_bus_set_power(device->handle, power_state); + device->flags.force_power_state = 0; + + return result; +} + static int __init acpi_fan_init(void) { int result = 0; diff --git a/drivers/acpi/hardware/hwacpi.c b/drivers/acpi/hardware/hwacpi.c index ea2f13271ff1..de50fab2a910 100644 --- a/drivers/acpi/hardware/hwacpi.c +++ b/drivers/acpi/hardware/hwacpi.c @@ -63,7 +63,7 @@ acpi_status acpi_hw_initialize(void) { acpi_status status; - ACPI_FUNCTION_TRACE("hw_initialize"); + ACPI_FUNCTION_TRACE(hw_initialize); /* We must have the ACPI tables by the time we get here */ @@ -100,7 +100,7 @@ acpi_status acpi_hw_set_mode(u32 mode) acpi_status status; u32 retry; - ACPI_FUNCTION_TRACE("hw_set_mode"); + ACPI_FUNCTION_TRACE(hw_set_mode); /* * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, @@ -198,7 +198,7 @@ u32 acpi_hw_get_mode(void) acpi_status status; u32 value; - ACPI_FUNCTION_TRACE("hw_get_mode"); + ACPI_FUNCTION_TRACE(hw_get_mode); /* * ACPI 2.0 clarified that if SMI_CMD in FADT is zero, diff --git a/drivers/acpi/hardware/hwgpe.c b/drivers/acpi/hardware/hwgpe.c index d84942d22dd5..608a3a60ee11 100644 --- a/drivers/acpi/hardware/hwgpe.c +++ b/drivers/acpi/hardware/hwgpe.c @@ -214,6 +214,7 @@ acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info, /* Examine each GPE Register within the block */ for (i = 0; i < gpe_block->register_count; i++) { + /* Disable all GPEs in this register */ status = acpi_hw_low_level_write(8, 0x00, @@ -250,6 +251,7 @@ acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info * gpe_xrupt_info, /* Examine each GPE Register within the block */ for (i = 0; i < gpe_block->register_count; i++) { + /* Clear status on all GPEs in this register */ status = acpi_hw_low_level_write(8, 0xFF, @@ -368,7 +370,7 @@ acpi_status acpi_hw_disable_all_gpes(void) { acpi_status status; - ACPI_FUNCTION_TRACE("hw_disable_all_gpes"); + ACPI_FUNCTION_TRACE(hw_disable_all_gpes); status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block); status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block); @@ -391,7 +393,7 @@ acpi_status acpi_hw_enable_all_runtime_gpes(void) { acpi_status status; - ACPI_FUNCTION_TRACE("hw_enable_all_runtime_gpes"); + ACPI_FUNCTION_TRACE(hw_enable_all_runtime_gpes); status = acpi_ev_walk_gpe_list(acpi_hw_enable_runtime_gpe_block); return_ACPI_STATUS(status); @@ -413,7 +415,7 @@ acpi_status acpi_hw_enable_all_wakeup_gpes(void) { acpi_status status; - ACPI_FUNCTION_TRACE("hw_enable_all_wakeup_gpes"); + ACPI_FUNCTION_TRACE(hw_enable_all_wakeup_gpes); status = acpi_ev_walk_gpe_list(acpi_hw_enable_wakeup_gpe_block); return_ACPI_STATUS(status); diff --git a/drivers/acpi/hardware/hwregs.c b/drivers/acpi/hardware/hwregs.c index e1fe75498415..ae142de19507 100644 --- a/drivers/acpi/hardware/hwregs.c +++ b/drivers/acpi/hardware/hwregs.c @@ -43,8 +43,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acnamesp.h> #include <acpi/acevents.h> @@ -63,23 +61,21 @@ ACPI_MODULE_NAME("hwregs") * DESCRIPTION: Clears all fixed and general purpose status bits * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED * + * NOTE: TBD: Flags parameter is obsolete, to be removed + * ******************************************************************************/ acpi_status acpi_hw_clear_acpi_status(u32 flags) { acpi_status status; + acpi_cpu_flags lock_flags = 0; - ACPI_FUNCTION_TRACE("hw_clear_acpi_status"); + ACPI_FUNCTION_TRACE(hw_clear_acpi_status); ACPI_DEBUG_PRINT((ACPI_DB_IO, "About to write %04X to %04X\n", ACPI_BITMASK_ALL_FIXED_STATUS, (u16) acpi_gbl_FADT->xpm1a_evt_blk.address)); - if (flags & ACPI_MTX_LOCK) { - status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } + lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); status = acpi_hw_register_write(ACPI_MTX_DO_NOT_LOCK, ACPI_REGISTER_PM1_STATUS, @@ -104,9 +100,7 @@ acpi_status acpi_hw_clear_acpi_status(u32 flags) status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block); unlock_and_exit: - if (flags & ACPI_MTX_LOCK) { - (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); - } + acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); return_ACPI_STATUS(status); } @@ -129,10 +123,9 @@ acpi_status acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b) { acpi_status status = AE_OK; - struct acpi_parameter_info info; - char *sleep_state_name; + struct acpi_evaluate_info *info; - ACPI_FUNCTION_TRACE("acpi_get_sleep_type_data"); + ACPI_FUNCTION_TRACE(acpi_get_sleep_type_data); /* Validate parameters */ @@ -140,34 +133,39 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b) return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* Evaluate the namespace object containing the values for this state */ + /* Allocate the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } - info.parameters = NULL; - info.return_object = NULL; - sleep_state_name = + info->pathname = ACPI_CAST_PTR(char, acpi_gbl_sleep_state_names[sleep_state]); - status = acpi_ns_evaluate_by_name(sleep_state_name, &info); + /* Evaluate the namespace object containing the values for this state */ + + status = acpi_ns_evaluate(info); if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "%s while evaluating sleep_state [%s]\n", + "%s while evaluating SleepState [%s]\n", acpi_format_exception(status), - sleep_state_name)); + info->pathname)); - return_ACPI_STATUS(status); + goto cleanup; } /* Must have a return object */ - if (!info.return_object) { + if (!info->return_object) { ACPI_ERROR((AE_INFO, "No Sleep State object returned from [%s]", - sleep_state_name)); + info->pathname)); status = AE_NOT_EXIST; } /* It must be of type Package */ - else if (ACPI_GET_OBJECT_TYPE(info.return_object) != ACPI_TYPE_PACKAGE) { + else if (ACPI_GET_OBJECT_TYPE(info->return_object) != ACPI_TYPE_PACKAGE) { ACPI_ERROR((AE_INFO, "Sleep State return object is not a Package")); status = AE_AML_OPERAND_TYPE; @@ -180,7 +178,7 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b) * by BIOS vendors seems to be to have 2 or more elements, at least * one per sleep type (A/B). */ - else if (info.return_object->package.count < 2) { + else if (info->return_object->package.count < 2) { ACPI_ERROR((AE_INFO, "Sleep State return package does not have at least two elements")); status = AE_AML_NO_OPERAND; @@ -188,39 +186,42 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 * sleep_type_a, u8 * sleep_type_b) /* The first two elements must both be of type Integer */ - else if ((ACPI_GET_OBJECT_TYPE(info.return_object->package.elements[0]) + else if ((ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[0]) != ACPI_TYPE_INTEGER) || - (ACPI_GET_OBJECT_TYPE(info.return_object->package.elements[1]) + (ACPI_GET_OBJECT_TYPE(info->return_object->package.elements[1]) != ACPI_TYPE_INTEGER)) { ACPI_ERROR((AE_INFO, "Sleep State return package elements are not both Integers (%s, %s)", - acpi_ut_get_object_type_name(info.return_object-> + acpi_ut_get_object_type_name(info->return_object-> package.elements[0]), - acpi_ut_get_object_type_name(info.return_object-> + acpi_ut_get_object_type_name(info->return_object-> package.elements[1]))); status = AE_AML_OPERAND_TYPE; } else { /* Valid _Sx_ package size, type, and value */ *sleep_type_a = (u8) - (info.return_object->package.elements[0])->integer.value; + (info->return_object->package.elements[0])->integer.value; *sleep_type_b = (u8) - (info.return_object->package.elements[1])->integer.value; + (info->return_object->package.elements[1])->integer.value; } if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "While evaluating sleep_state [%s], bad Sleep object %p type %s", - sleep_state_name, info.return_object, - acpi_ut_get_object_type_name(info. + "While evaluating SleepState [%s], bad Sleep object %p type %s", + info->pathname, info->return_object, + acpi_ut_get_object_type_name(info-> return_object))); } - acpi_ut_remove_reference(info.return_object); + acpi_ut_remove_reference(info->return_object); + + cleanup: + ACPI_FREE(info); return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_sleep_type_data); +ACPI_EXPORT_SYMBOL(acpi_get_sleep_type_data) /******************************************************************************* * @@ -233,13 +234,12 @@ EXPORT_SYMBOL(acpi_get_sleep_type_data); * DESCRIPTION: Map register_id into a register bitmask. * ******************************************************************************/ - struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id) { ACPI_FUNCTION_ENTRY(); if (register_id > ACPI_BITREG_MAX) { - ACPI_ERROR((AE_INFO, "Invalid bit_register ID: %X", + ACPI_ERROR((AE_INFO, "Invalid BitRegister ID: %X", register_id)); return (NULL); } @@ -260,6 +260,8 @@ struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id) * * DESCRIPTION: ACPI bit_register read function. * + * NOTE: TBD: Flags parameter is obsolete, to be removed + * ******************************************************************************/ acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags) @@ -268,7 +270,7 @@ acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags) struct acpi_bit_register_info *bit_reg_info; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_get_register"); + ACPI_FUNCTION_TRACE(acpi_get_register); /* Get the info structure corresponding to the requested ACPI Register */ @@ -277,24 +279,14 @@ acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags) return_ACPI_STATUS(AE_BAD_PARAMETER); } - if (flags & ACPI_MTX_LOCK) { - status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - /* Read from the register */ - status = acpi_hw_register_read(ACPI_MTX_DO_NOT_LOCK, + status = acpi_hw_register_read(ACPI_MTX_LOCK, bit_reg_info->parent_register, ®ister_value); - if (flags & ACPI_MTX_LOCK) { - (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); - } - if (ACPI_SUCCESS(status)) { + /* Normalize the value that was read */ register_value = @@ -311,7 +303,7 @@ acpi_status acpi_get_register(u32 register_id, u32 * return_value, u32 flags) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_register); +ACPI_EXPORT_SYMBOL(acpi_get_register) /******************************************************************************* * @@ -326,31 +318,28 @@ EXPORT_SYMBOL(acpi_get_register); * * DESCRIPTION: ACPI Bit Register write function. * + * NOTE: TBD: Flags parameter is obsolete, to be removed + * ******************************************************************************/ - acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags) { u32 register_value = 0; struct acpi_bit_register_info *bit_reg_info; acpi_status status; + acpi_cpu_flags lock_flags; - ACPI_FUNCTION_TRACE_U32("acpi_set_register", register_id); + ACPI_FUNCTION_TRACE_U32(acpi_set_register, register_id); /* Get the info structure corresponding to the requested ACPI Register */ bit_reg_info = acpi_hw_get_bit_register_info(register_id); if (!bit_reg_info) { - ACPI_ERROR((AE_INFO, "Bad ACPI HW register_id: %X", + ACPI_ERROR((AE_INFO, "Bad ACPI HW RegisterId: %X", register_id)); return_ACPI_STATUS(AE_BAD_PARAMETER); } - if (flags & ACPI_MTX_LOCK) { - status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } + lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); /* Always do a register read first so we can insert the new bits */ @@ -458,9 +447,7 @@ acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags) unlock_and_exit: - if (flags & ACPI_MTX_LOCK) { - (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); - } + acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); /* Normalize the value that was read */ @@ -474,7 +461,7 @@ acpi_status acpi_set_register(u32 register_id, u32 value, u32 flags) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_set_register); +ACPI_EXPORT_SYMBOL(acpi_set_register) /****************************************************************************** * @@ -490,21 +477,18 @@ EXPORT_SYMBOL(acpi_set_register); * given offset. * ******************************************************************************/ - acpi_status acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value) { u32 value1 = 0; u32 value2 = 0; acpi_status status; + acpi_cpu_flags lock_flags = 0; - ACPI_FUNCTION_TRACE("hw_register_read"); + ACPI_FUNCTION_TRACE(hw_register_read); if (ACPI_MTX_LOCK == use_lock) { - status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } + lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); } switch (register_id) { @@ -582,7 +566,7 @@ acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value) unlock_and_exit: if (ACPI_MTX_LOCK == use_lock) { - (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); + acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); } if (ACPI_SUCCESS(status)) { @@ -610,14 +594,12 @@ acpi_hw_register_read(u8 use_lock, u32 register_id, u32 * return_value) acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value) { acpi_status status; + acpi_cpu_flags lock_flags = 0; - ACPI_FUNCTION_TRACE("hw_register_write"); + ACPI_FUNCTION_TRACE(hw_register_write); if (ACPI_MTX_LOCK == use_lock) { - status = acpi_ut_acquire_mutex(ACPI_MTX_HARDWARE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } + lock_flags = acpi_os_acquire_lock(acpi_gbl_hardware_lock); } switch (register_id) { @@ -707,7 +689,7 @@ acpi_status acpi_hw_register_write(u8 use_lock, u32 register_id, u32 value) unlock_and_exit: if (ACPI_MTX_LOCK == use_lock) { - (void)acpi_ut_release_mutex(ACPI_MTX_HARDWARE); + acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags); } return_ACPI_STATUS(status); @@ -733,7 +715,7 @@ acpi_hw_low_level_read(u32 width, u32 * value, struct acpi_generic_address *reg) u64 address; acpi_status status; - ACPI_FUNCTION_NAME("hw_low_level_read"); + ACPI_FUNCTION_NAME(hw_low_level_read); /* * Must have a valid pointer to a GAS structure, and @@ -805,7 +787,7 @@ acpi_hw_low_level_write(u32 width, u32 value, struct acpi_generic_address * reg) u64 address; acpi_status status; - ACPI_FUNCTION_NAME("hw_low_level_write"); + ACPI_FUNCTION_NAME(hw_low_level_write); /* * Must have a valid pointer to a GAS structure, and diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c index 89269272fd62..8bb43cae60c2 100644 --- a/drivers/acpi/hardware/hwsleep.c +++ b/drivers/acpi/hardware/hwsleep.c @@ -42,7 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> #include <acpi/acpi.h> #define _COMPONENT ACPI_HARDWARE @@ -64,7 +63,7 @@ acpi_status acpi_set_firmware_waking_vector(acpi_physical_address physical_address) { - ACPI_FUNCTION_TRACE("acpi_set_firmware_waking_vector"); + ACPI_FUNCTION_TRACE(acpi_set_firmware_waking_vector); /* Set the vector */ @@ -79,6 +78,8 @@ acpi_set_firmware_waking_vector(acpi_physical_address physical_address) return_ACPI_STATUS(AE_OK); } +ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector) + /******************************************************************************* * * FUNCTION: acpi_get_firmware_waking_vector @@ -92,13 +93,12 @@ acpi_set_firmware_waking_vector(acpi_physical_address physical_address) * DESCRIPTION: Access function for the firmware_waking_vector field in FACS * ******************************************************************************/ - #ifdef ACPI_FUTURE_USAGE acpi_status acpi_get_firmware_waking_vector(acpi_physical_address * physical_address) { - ACPI_FUNCTION_TRACE("acpi_get_firmware_waking_vector"); + ACPI_FUNCTION_TRACE(acpi_get_firmware_waking_vector); if (!physical_address) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -118,6 +118,8 @@ acpi_get_firmware_waking_vector(acpi_physical_address * physical_address) return_ACPI_STATUS(AE_OK); } + +ACPI_EXPORT_SYMBOL(acpi_get_firmware_waking_vector) #endif /******************************************************************************* @@ -134,14 +136,13 @@ acpi_get_firmware_waking_vector(acpi_physical_address * physical_address) * various OS-specific tasks between the two steps. * ******************************************************************************/ - acpi_status acpi_enter_sleep_state_prep(u8 sleep_state) { acpi_status status; struct acpi_object_list arg_list; union acpi_object arg; - ACPI_FUNCTION_TRACE("acpi_enter_sleep_state_prep"); + ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_prep); /* * _PSW methods could be run here to enable wake-on keyboard, LAN, etc. @@ -206,6 +207,8 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state) return_ACPI_STATUS(AE_OK); } +ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep) + /******************************************************************************* * * FUNCTION: acpi_enter_sleep_state @@ -218,7 +221,6 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state) * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED * ******************************************************************************/ - acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) { u32 PM1Acontrol; @@ -228,7 +230,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) u32 in_value; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_enter_sleep_state"); + ACPI_FUNCTION_TRACE(acpi_enter_sleep_state); if ((acpi_gbl_sleep_type_a > ACPI_SLEEP_TYPE_MAX) || (acpi_gbl_sleep_type_b > ACPI_SLEEP_TYPE_MAX)) { @@ -378,7 +380,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) return_ACPI_STATUS(AE_OK); } -EXPORT_SYMBOL(acpi_enter_sleep_state); +ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state) /******************************************************************************* * @@ -392,13 +394,12 @@ EXPORT_SYMBOL(acpi_enter_sleep_state); * THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED * ******************************************************************************/ - acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void) { u32 in_value; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_enter_sleep_state_s4bios"); + ACPI_FUNCTION_TRACE(acpi_enter_sleep_state_s4bios); status = acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1, ACPI_MTX_DO_NOT_LOCK); @@ -443,7 +444,7 @@ acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void) return_ACPI_STATUS(AE_OK); } -EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios); +ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios) /******************************************************************************* * @@ -457,7 +458,6 @@ EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios); * Called with interrupts ENABLED. * ******************************************************************************/ - acpi_status acpi_leave_sleep_state(u8 sleep_state) { struct acpi_object_list arg_list; @@ -468,7 +468,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) u32 PM1Acontrol; u32 PM1Bcontrol; - ACPI_FUNCTION_TRACE("acpi_leave_sleep_state"); + ACPI_FUNCTION_TRACE(acpi_leave_sleep_state); /* * Set SLP_TYPE and SLP_EN to state S0. @@ -490,6 +490,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); if (ACPI_SUCCESS(status)) { + /* Clear SLP_EN and SLP_TYP fields */ PM1Acontrol &= ~(sleep_type_reg_info->access_bit_mask | @@ -583,3 +584,5 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) return_ACPI_STATUS(status); } + +ACPI_EXPORT_SYMBOL(acpi_leave_sleep_state) diff --git a/drivers/acpi/hardware/hwtimer.c b/drivers/acpi/hardware/hwtimer.c index fc10b7cb456f..c4ec47c939fd 100644 --- a/drivers/acpi/hardware/hwtimer.c +++ b/drivers/acpi/hardware/hwtimer.c @@ -42,7 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> #include <acpi/acpi.h> #define _COMPONENT ACPI_HARDWARE @@ -61,13 +60,13 @@ ACPI_MODULE_NAME("hwtimer") ******************************************************************************/ acpi_status acpi_get_timer_resolution(u32 * resolution) { - ACPI_FUNCTION_TRACE("acpi_get_timer_resolution"); + ACPI_FUNCTION_TRACE(acpi_get_timer_resolution); if (!resolution) { return_ACPI_STATUS(AE_BAD_PARAMETER); } - if (0 == acpi_gbl_FADT->tmr_val_ext) { + if (acpi_gbl_FADT->tmr_val_ext == 0) { *resolution = 24; } else { *resolution = 32; @@ -76,6 +75,8 @@ acpi_status acpi_get_timer_resolution(u32 * resolution) return_ACPI_STATUS(AE_OK); } +ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution) + /****************************************************************************** * * FUNCTION: acpi_get_timer @@ -87,12 +88,11 @@ acpi_status acpi_get_timer_resolution(u32 * resolution) * DESCRIPTION: Obtains current value of ACPI PM Timer (in ticks). * ******************************************************************************/ - acpi_status acpi_get_timer(u32 * ticks) { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_get_timer"); + ACPI_FUNCTION_TRACE(acpi_get_timer); if (!ticks) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -103,7 +103,7 @@ acpi_status acpi_get_timer(u32 * ticks) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_timer); +ACPI_EXPORT_SYMBOL(acpi_get_timer) /****************************************************************************** * @@ -133,7 +133,6 @@ EXPORT_SYMBOL(acpi_get_timer); * 2**32 Ticks / 3,600,000 Ticks/Sec = 1193 sec or 19.88 minutes * ******************************************************************************/ - acpi_status acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed) { @@ -141,7 +140,7 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed) u32 delta_ticks; acpi_integer quotient; - ACPI_FUNCTION_TRACE("acpi_get_timer_duration"); + ACPI_FUNCTION_TRACE(acpi_get_timer_duration); if (!time_elapsed) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -154,7 +153,8 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed) if (start_ticks < end_ticks) { delta_ticks = end_ticks - start_ticks; } else if (start_ticks > end_ticks) { - if (0 == acpi_gbl_FADT->tmr_val_ext) { + if (acpi_gbl_FADT->tmr_val_ext == 0) { + /* 24-bit Timer */ delta_ticks = @@ -183,4 +183,4 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed) return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_timer_duration); +ACPI_EXPORT_SYMBOL(acpi_get_timer_duration) diff --git a/drivers/acpi/hotkey.c b/drivers/acpi/hotkey.c index 2e2e4051dfa7..c25b2b92edcf 100644 --- a/drivers/acpi/hotkey.c +++ b/drivers/acpi/hotkey.c @@ -723,6 +723,8 @@ get_parms(char *config_record, goto do_fail; count = tmp1 - tmp; *action_handle = (char *)kmalloc(count + 1, GFP_KERNEL); + if (!*action_handle) + goto do_fail; strncpy(*action_handle, tmp, count); *(*action_handle + count) = 0; diff --git a/drivers/acpi/ibm_acpi.c b/drivers/acpi/ibm_acpi.c index 262b1f41335a..15fc12482ba0 100644 --- a/drivers/acpi/ibm_acpi.c +++ b/drivers/acpi/ibm_acpi.c @@ -567,6 +567,69 @@ static int bluetooth_write(char *buf) return 0; } +static int wan_supported; + +static int wan_init(void) +{ + wan_supported = hkey_handle && + acpi_evalf(hkey_handle, NULL, "GWAN", "qv"); + + return 0; +} + +static int wan_status(void) +{ + int status; + + if (!wan_supported || + !acpi_evalf(hkey_handle, &status, "GWAN", "d")) + status = 0; + + return status; +} + +static int wan_read(char *p) +{ + int len = 0; + int status = wan_status(); + + if (!wan_supported) + len += sprintf(p + len, "status:\t\tnot supported\n"); + else if (!(status & 1)) + len += sprintf(p + len, "status:\t\tnot installed\n"); + else { + len += sprintf(p + len, "status:\t\t%s\n", enabled(status, 1)); + len += sprintf(p + len, "commands:\tenable, disable\n"); + } + + return len; +} + +static int wan_write(char *buf) +{ + int status = wan_status(); + char *cmd; + int do_cmd = 0; + + if (!wan_supported) + return -ENODEV; + + while ((cmd = next_cmd(&buf))) { + if (strlencmp(cmd, "enable") == 0) { + status |= 2; + } else if (strlencmp(cmd, "disable") == 0) { + status &= ~2; + } else + return -EINVAL; + do_cmd = 1; + } + + if (do_cmd && !acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status)) + return -EIO; + + return 0; +} + static int video_supported; static int video_orig_autosw; @@ -1563,6 +1626,13 @@ static struct ibm_struct ibms[] = { .write = bluetooth_write, }, { + .name = "wan", + .init = wan_init, + .read = wan_read, + .write = wan_write, + .experimental = 1, + }, + { .name = "video", .init = video_init, .read = video_read, diff --git a/drivers/acpi/motherboard.c b/drivers/acpi/motherboard.c index 468244147ec1..d51d68f5dd8d 100644 --- a/drivers/acpi/motherboard.c +++ b/drivers/acpi/motherboard.c @@ -37,7 +37,7 @@ ACPI_MODULE_NAME("acpi_motherboard") #define ACPI_MB_HID2 "PNP0C02" /** * Doesn't care about legacy IO ports, only IO ports beyond 0x1000 are reserved - * Doesn't care about the failure of 'request_region', since other may reserve + * Doesn't care about the failure of 'request_region', since other may reserve * the io ports as well */ #define IS_RESERVED_ADDR(base, len) \ @@ -46,7 +46,7 @@ ACPI_MODULE_NAME("acpi_motherboard") /* * Clearing the flag (IORESOURCE_BUSY) allows drivers to use * the io ports if they really know they can use it, while - * still preventing hotplug PCI devices from using it. + * still preventing hotplug PCI devices from using it. */ static acpi_status acpi_reserve_io_ranges(struct acpi_resource *res, void *data) { @@ -123,49 +123,54 @@ static struct acpi_driver acpi_motherboard_driver2 = { }, }; +static void __init acpi_request_region (struct acpi_generic_address *addr, + unsigned int length, char *desc) +{ + if (!addr->address || !length) + return; + + if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_IO) + request_region(addr->address, length, desc); + else if (addr->address_space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) + request_mem_region(addr->address, length, desc); +} + static void __init acpi_reserve_resources(void) { - if (acpi_gbl_FADT->xpm1a_evt_blk.address && acpi_gbl_FADT->pm1_evt_len) - request_region(acpi_gbl_FADT->xpm1a_evt_blk.address, - acpi_gbl_FADT->pm1_evt_len, "PM1a_EVT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm1a_evt_blk, + acpi_gbl_FADT->pm1_evt_len, "ACPI PM1a_EVT_BLK"); - if (acpi_gbl_FADT->xpm1b_evt_blk.address && acpi_gbl_FADT->pm1_evt_len) - request_region(acpi_gbl_FADT->xpm1b_evt_blk.address, - acpi_gbl_FADT->pm1_evt_len, "PM1b_EVT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm1b_evt_blk, + acpi_gbl_FADT->pm1_evt_len, "ACPI PM1b_EVT_BLK"); - if (acpi_gbl_FADT->xpm1a_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len) - request_region(acpi_gbl_FADT->xpm1a_cnt_blk.address, - acpi_gbl_FADT->pm1_cnt_len, "PM1a_CNT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm1a_cnt_blk, + acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1a_CNT_BLK"); - if (acpi_gbl_FADT->xpm1b_cnt_blk.address && acpi_gbl_FADT->pm1_cnt_len) - request_region(acpi_gbl_FADT->xpm1b_cnt_blk.address, - acpi_gbl_FADT->pm1_cnt_len, "PM1b_CNT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm1b_cnt_blk, + acpi_gbl_FADT->pm1_cnt_len, "ACPI PM1b_CNT_BLK"); - if (acpi_gbl_FADT->xpm_tmr_blk.address && acpi_gbl_FADT->pm_tm_len == 4) - request_region(acpi_gbl_FADT->xpm_tmr_blk.address, 4, "PM_TMR"); + if (acpi_gbl_FADT->pm_tm_len == 4) + acpi_request_region(&acpi_gbl_FADT->xpm_tmr_blk, 4, "ACPI PM_TMR"); - if (acpi_gbl_FADT->xpm2_cnt_blk.address && acpi_gbl_FADT->pm2_cnt_len) - request_region(acpi_gbl_FADT->xpm2_cnt_blk.address, - acpi_gbl_FADT->pm2_cnt_len, "PM2_CNT_BLK"); + acpi_request_region(&acpi_gbl_FADT->xpm2_cnt_blk, + acpi_gbl_FADT->pm2_cnt_len, "ACPI PM2_CNT_BLK"); /* Length of GPE blocks must be a non-negative multiple of 2 */ - if (acpi_gbl_FADT->xgpe0_blk.address && acpi_gbl_FADT->gpe0_blk_len && - !(acpi_gbl_FADT->gpe0_blk_len & 0x1)) - request_region(acpi_gbl_FADT->xgpe0_blk.address, - acpi_gbl_FADT->gpe0_blk_len, "GPE0_BLK"); + if (!(acpi_gbl_FADT->gpe0_blk_len & 0x1)) + acpi_request_region(&acpi_gbl_FADT->xgpe0_blk, + acpi_gbl_FADT->gpe0_blk_len, "ACPI GPE0_BLK"); - if (acpi_gbl_FADT->xgpe1_blk.address && acpi_gbl_FADT->gpe1_blk_len && - !(acpi_gbl_FADT->gpe1_blk_len & 0x1)) - request_region(acpi_gbl_FADT->xgpe1_blk.address, - acpi_gbl_FADT->gpe1_blk_len, "GPE1_BLK"); + if (!(acpi_gbl_FADT->gpe1_blk_len & 0x1)) + acpi_request_region(&acpi_gbl_FADT->xgpe1_blk, + acpi_gbl_FADT->gpe1_blk_len, "ACPI GPE1_BLK"); } static int __init acpi_motherboard_init(void) { acpi_bus_register_driver(&acpi_motherboard_driver1); acpi_bus_register_driver(&acpi_motherboard_driver2); - /* + /* * Guarantee motherboard IO reservation first * This module must run after scan.c */ diff --git a/drivers/acpi/namespace/nsaccess.c b/drivers/acpi/namespace/nsaccess.c index 1149bc18fb35..48fadade52e2 100644 --- a/drivers/acpi/namespace/nsaccess.c +++ b/drivers/acpi/namespace/nsaccess.c @@ -70,7 +70,7 @@ acpi_status acpi_ns_root_initialize(void) union acpi_operand_object *obj_desc; acpi_string val = NULL; - ACPI_FUNCTION_TRACE("ns_root_initialize"); + ACPI_FUNCTION_TRACE(ns_root_initialize); status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); if (ACPI_FAILURE(status)) { @@ -98,6 +98,7 @@ acpi_status acpi_ns_root_initialize(void) "Entering predefined entries into namespace\n")); for (init_val = acpi_gbl_pre_defined_names; init_val->name; init_val++) { + /* _OSI is optional for now, will be permanent later */ if (!ACPI_STRCMP(init_val->name, "_OSI") @@ -156,7 +157,7 @@ acpi_status acpi_ns_root_initialize(void) #if defined (ACPI_ASL_COMPILER) - /* save the parameter count for the i_aSL compiler */ + /* Save the parameter count for the i_aSL compiler */ new_node->value = obj_desc->method.param_count; #else @@ -258,10 +259,8 @@ acpi_status acpi_ns_root_initialize(void) /* Save a handle to "_GPE", it is always present */ if (ACPI_SUCCESS(status)) { - status = - acpi_ns_get_node_by_path("\\_GPE", NULL, - ACPI_NS_NO_UPSEARCH, - &acpi_gbl_fadt_gpe_device); + status = acpi_ns_get_node(NULL, "\\_GPE", ACPI_NS_NO_UPSEARCH, + &acpi_gbl_fadt_gpe_device); } return_ACPI_STATUS(status); @@ -310,17 +309,17 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, acpi_object_type type_to_check_for; acpi_object_type this_search_type; u32 search_parent_flag = ACPI_NS_SEARCH_PARENT; - u32 local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | - ACPI_NS_SEARCH_PARENT); + u32 local_flags; - ACPI_FUNCTION_TRACE("ns_lookup"); + ACPI_FUNCTION_TRACE(ns_lookup); if (!return_node) { return_ACPI_STATUS(AE_BAD_PARAMETER); } - acpi_gbl_ns_lookup_count++; + local_flags = flags & ~(ACPI_NS_ERROR_IF_FOUND | ACPI_NS_SEARCH_PARENT); *return_node = ACPI_ENTRY_NOT_FOUND; + acpi_gbl_ns_lookup_count++; if (!acpi_gbl_root_node) { return_ACPI_STATUS(AE_NO_NAMESPACE); @@ -346,14 +345,17 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, return_ACPI_STATUS(AE_AML_INTERNAL); } - /* - * This node might not be a actual "scope" node (such as a - * Device/Method, etc.) It could be a Package or other object node. - * Backup up the tree to find the containing scope node. - */ - while (!acpi_ns_opens_scope(prefix_node->type) && - prefix_node->type != ACPI_TYPE_ANY) { - prefix_node = acpi_ns_get_parent_node(prefix_node); + if (!(flags & ACPI_NS_PREFIX_IS_SCOPE)) { + /* + * This node might not be a actual "scope" node (such as a + * Device/Method, etc.) It could be a Package or other object node. + * Backup up the tree to find the containing scope node. + */ + while (!acpi_ns_opens_scope(prefix_node->type) && + prefix_node->type != ACPI_TYPE_ANY) { + prefix_node = + acpi_ns_get_parent_node(prefix_node); + } } } @@ -365,6 +367,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, * Begin examination of the actual pathname */ if (!pathname) { + /* A Null name_path is allowed and refers to the root */ num_segments = 0; @@ -389,6 +392,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, * to the current scope). */ if (*path == (u8) AML_ROOT_PREFIX) { + /* Pathname is fully qualified, start from the root */ this_node = acpi_gbl_root_node; @@ -416,6 +420,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, this_node = prefix_node; num_carats = 0; while (*path == (u8) AML_PARENT_PREFIX) { + /* Name is fully qualified, no search rules apply */ search_parent_flag = ACPI_NS_NO_UPSEARCH; @@ -430,6 +435,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, num_carats++; this_node = acpi_ns_get_parent_node(this_node); if (!this_node) { + /* Current scope has no parent scope */ ACPI_ERROR((AE_INFO, @@ -569,6 +575,7 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, &this_node); if (ACPI_FAILURE(status)) { if (status == AE_NOT_FOUND) { + /* Name not found in ACPI namespace */ ACPI_DEBUG_PRINT((ACPI_DB_NAMES, @@ -602,10 +609,11 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, (type_to_check_for != ACPI_TYPE_LOCAL_SCOPE) && (this_node->type != ACPI_TYPE_ANY) && (this_node->type != type_to_check_for)) { + /* Complain about a type mismatch */ ACPI_WARNING((AE_INFO, - "ns_lookup: Type mismatch on %4.4s (%s), searching for (%s)", + "NsLookup: Type mismatch on %4.4s (%s), searching for (%s)", ACPI_CAST_PTR(char, &simple_name), acpi_ut_get_type_name(this_node->type), acpi_ut_get_type_name diff --git a/drivers/acpi/namespace/nsalloc.c b/drivers/acpi/namespace/nsalloc.c index 9b871f38b61b..dc3f0739a46b 100644 --- a/drivers/acpi/namespace/nsalloc.c +++ b/drivers/acpi/namespace/nsalloc.c @@ -47,9 +47,6 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nsalloc") -/* Local prototypes */ -static void acpi_ns_remove_reference(struct acpi_namespace_node *node); - /******************************************************************************* * * FUNCTION: acpi_ns_create_node @@ -61,14 +58,13 @@ static void acpi_ns_remove_reference(struct acpi_namespace_node *node); * DESCRIPTION: Create a namespace node * ******************************************************************************/ - struct acpi_namespace_node *acpi_ns_create_node(u32 name) { struct acpi_namespace_node *node; - ACPI_FUNCTION_TRACE("ns_create_node"); + ACPI_FUNCTION_TRACE(ns_create_node); - node = ACPI_MEM_CALLOCATE(sizeof(struct acpi_namespace_node)); + node = acpi_os_acquire_object(acpi_gbl_namespace_cache); if (!node) { return_PTR(NULL); } @@ -76,9 +72,7 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name) ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++); node->name.integer = name; - node->reference_count = 1; ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED); - return_PTR(node); } @@ -100,7 +94,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) struct acpi_namespace_node *prev_node; struct acpi_namespace_node *next_node; - ACPI_FUNCTION_TRACE_PTR("ns_delete_node", node); + ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node); parent_node = acpi_ns_get_parent_node(node); @@ -115,6 +109,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) } if (prev_node) { + /* Node is not first child, unlink it */ prev_node->peer = next_node->peer; @@ -125,6 +120,7 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) /* Node is first child (has no previous peer) */ if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { + /* No peers at all */ parent_node->child = NULL; @@ -137,10 +133,10 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); /* - * Detach an object if there is one then delete the node + * Detach an object if there is one, then delete the node */ acpi_ns_detach_object(node); - ACPI_MEM_FREE(node); + (void)acpi_os_release_object(acpi_gbl_namespace_cache, node); return_VOID; } @@ -171,7 +167,7 @@ void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namesp acpi_owner_id owner_id = 0; struct acpi_namespace_node *child_node; - ACPI_FUNCTION_TRACE("ns_install_node"); + ACPI_FUNCTION_TRACE(ns_install_node); /* * Get the owner ID from the Walk state @@ -216,14 +212,6 @@ void acpi_ns_install_node(struct acpi_walk_state *walk_state, struct acpi_namesp acpi_ut_get_type_name(parent_node->type), parent_node)); - /* - * Increment the reference count(s) of all parents up to - * the root! - */ - while ((node = acpi_ns_get_parent_node(node)) != NULL) { - node->reference_count++; - } - return_VOID; } @@ -244,10 +232,9 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) { struct acpi_namespace_node *child_node; struct acpi_namespace_node *next_node; - struct acpi_namespace_node *node; u8 flags; - ACPI_FUNCTION_TRACE_PTR("ns_delete_children", parent_node); + ACPI_FUNCTION_TRACE_PTR(ns_delete_children, parent_node); if (!parent_node) { return_VOID; @@ -264,6 +251,7 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) * Deallocate all children at this level */ do { + /* Get the things we need */ next_node = child_node->peer; @@ -289,26 +277,10 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) */ acpi_ns_detach_object(child_node); - /* - * Decrement the reference count(s) of all parents up to - * the root! (counts were incremented when the node was created) - */ - node = child_node; - while ((node = acpi_ns_get_parent_node(node)) != NULL) { - node->reference_count--; - } - - /* There should be only one reference remaining on this node */ - - if (child_node->reference_count != 1) { - ACPI_WARNING((AE_INFO, - "Existing references (%d) on node being deleted (%p)", - child_node->reference_count, child_node)); - } - /* Now we can delete the node */ - ACPI_MEM_FREE(child_node); + (void)acpi_os_release_object(acpi_gbl_namespace_cache, + child_node); /* And move on to the next child in the list */ @@ -341,7 +313,7 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node) struct acpi_namespace_node *child_node = NULL; u32 level = 1; - ACPI_FUNCTION_TRACE("ns_delete_namespace_subtree"); + ACPI_FUNCTION_TRACE(ns_delete_namespace_subtree); if (!parent_node) { return_VOID; @@ -352,11 +324,14 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node) * to where we started. */ while (level > 0) { + /* Get the next node in this scope (NULL if none) */ - child_node = acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, - child_node); + child_node = + acpi_ns_get_next_node(ACPI_TYPE_ANY, parent_node, + child_node); if (child_node) { + /* Found a child node - detach any attached object */ acpi_ns_detach_object(child_node); @@ -401,55 +376,6 @@ void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_node) /******************************************************************************* * - * FUNCTION: acpi_ns_remove_reference - * - * PARAMETERS: Node - Named node whose reference count is to be - * decremented - * - * RETURN: None. - * - * DESCRIPTION: Remove a Node reference. Decrements the reference count - * of all parent Nodes up to the root. Any node along - * the way that reaches zero references is freed. - * - ******************************************************************************/ - -static void acpi_ns_remove_reference(struct acpi_namespace_node *node) -{ - struct acpi_namespace_node *parent_node; - struct acpi_namespace_node *this_node; - - ACPI_FUNCTION_ENTRY(); - - /* - * Decrement the reference count(s) of this node and all - * nodes up to the root, Delete anything with zero remaining references. - */ - this_node = node; - while (this_node) { - /* Prepare to move up to parent */ - - parent_node = acpi_ns_get_parent_node(this_node); - - /* Decrement the reference count on this node */ - - this_node->reference_count--; - - /* Delete the node if no more references */ - - if (!this_node->reference_count) { - /* Delete all children and delete the node */ - - acpi_ns_delete_children(this_node); - acpi_ns_delete_node(this_node); - } - - this_node = parent_node; - } -} - -/******************************************************************************* - * * FUNCTION: acpi_ns_delete_namespace_by_owner * * PARAMETERS: owner_id - All nodes with this owner will be deleted @@ -469,15 +395,15 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) u32 level; struct acpi_namespace_node *parent_node; - ACPI_FUNCTION_TRACE_U32("ns_delete_namespace_by_owner", owner_id); + ACPI_FUNCTION_TRACE_U32(ns_delete_namespace_by_owner, owner_id); if (owner_id == 0) { return_VOID; } + deletion_node = NULL; parent_node = acpi_gbl_root_node; child_node = NULL; - deletion_node = NULL; level = 1; /* @@ -494,12 +420,14 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) child_node); if (deletion_node) { - acpi_ns_remove_reference(deletion_node); + acpi_ns_delete_children(deletion_node); + acpi_ns_delete_node(deletion_node); deletion_node = NULL; } if (child_node) { if (child_node->owner_id == owner_id) { + /* Found a matching child node - detach any attached object */ acpi_ns_detach_object(child_node); diff --git a/drivers/acpi/namespace/nsdump.c b/drivers/acpi/namespace/nsdump.c index a2807317a84b..d72df66aa965 100644 --- a/drivers/acpi/namespace/nsdump.c +++ b/drivers/acpi/namespace/nsdump.c @@ -75,7 +75,7 @@ void acpi_ns_print_pathname(u32 num_segments, char *pathname) { acpi_native_uint i; - ACPI_FUNCTION_NAME("ns_print_pathname"); + ACPI_FUNCTION_NAME(ns_print_pathname); if (!(acpi_dbg_level & ACPI_LV_NAMES) || !(acpi_dbg_layer & ACPI_NAMESPACE)) { @@ -123,7 +123,7 @@ void acpi_ns_dump_pathname(acpi_handle handle, char *msg, u32 level, u32 component) { - ACPI_FUNCTION_TRACE("ns_dump_pathname"); + ACPI_FUNCTION_TRACE(ns_dump_pathname); /* Do this only if the requested debug level and component are enabled */ @@ -167,7 +167,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle, u32 dbg_level; u32 i; - ACPI_FUNCTION_NAME("ns_dump_one_object"); + ACPI_FUNCTION_NAME(ns_dump_one_object); /* Is output enabled? */ @@ -191,6 +191,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle, } if (!(info->display_type & ACPI_DISPLAY_SHORT)) { + /* Indent the object according to the level */ acpi_os_printf("%2d%*s", (u32) level - 1, (int)level * 2, " "); @@ -203,6 +204,9 @@ acpi_ns_dump_one_object(acpi_handle obj_handle, } if (!acpi_ut_valid_acpi_name(this_node->name.integer)) { + this_node->name.integer = + acpi_ut_repair_name(this_node->name.integer); + ACPI_WARNING((AE_INFO, "Invalid ACPI Name %08X", this_node->name.integer)); } @@ -226,6 +230,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle, case ACPI_DISPLAY_SUMMARY: if (!obj_desc) { + /* No attached object, we are done */ acpi_os_printf("\n"); @@ -419,6 +424,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle, acpi_os_printf("O:%p", obj_desc); if (!obj_desc) { + /* No attached object, we are done */ acpi_os_printf("\n"); @@ -669,7 +675,7 @@ void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth) { acpi_handle search_handle = search_base; - ACPI_FUNCTION_TRACE("ns_dump_tables"); + ACPI_FUNCTION_TRACE(ns_dump_tables); if (!acpi_gbl_root_node) { /* @@ -682,6 +688,7 @@ void acpi_ns_dump_tables(acpi_handle search_base, u32 max_depth) } if (ACPI_NS_ALL == search_base) { + /* Entire namespace */ search_handle = acpi_gbl_root_node; diff --git a/drivers/acpi/namespace/nsdumpdv.c b/drivers/acpi/namespace/nsdumpdv.c index aff899a935e3..c6bf5d30fca3 100644 --- a/drivers/acpi/namespace/nsdumpdv.c +++ b/drivers/acpi/namespace/nsdumpdv.c @@ -74,7 +74,7 @@ acpi_ns_dump_one_device(acpi_handle obj_handle, acpi_status status; u32 i; - ACPI_FUNCTION_NAME("ns_dump_one_device"); + ACPI_FUNCTION_NAME(ns_dump_one_device); status = acpi_ns_dump_one_object(obj_handle, level, context, return_value); @@ -92,7 +92,7 @@ acpi_ns_dump_one_device(acpi_handle obj_handle, info->hardware_id.value, ACPI_FORMAT_UINT64(info->address), info->current_status)); - ACPI_MEM_FREE(info); + ACPI_FREE(info); } return (status); @@ -115,7 +115,7 @@ void acpi_ns_dump_root_devices(void) acpi_handle sys_bus_handle; acpi_status status; - ACPI_FUNCTION_NAME("ns_dump_root_devices"); + ACPI_FUNCTION_NAME(ns_dump_root_devices); /* Only dump the table if tracing is enabled */ diff --git a/drivers/acpi/namespace/nseval.c b/drivers/acpi/namespace/nseval.c index 19d7b94d40c3..4b0a4a8c9843 100644 --- a/drivers/acpi/namespace/nseval.c +++ b/drivers/acpi/namespace/nseval.c @@ -1,7 +1,6 @@ /******************************************************************************* * - * Module Name: nseval - Object evaluation interfaces -- includes control - * method lookup and execution. + * Module Name: nseval - Object evaluation, includes control method execution * ******************************************************************************/ @@ -50,196 +49,14 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nseval") -/* Local prototypes */ -static acpi_status -acpi_ns_execute_control_method(struct acpi_parameter_info *info); - -static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info); - -/******************************************************************************* - * - * FUNCTION: acpi_ns_evaluate_relative - * - * PARAMETERS: Pathname - Name of method to execute, If NULL, the - * handle is the object to execute - * Info - Method info block, contains: - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * Params - List of parameters to pass to the method, - * terminated by NULL. Params itself may be - * NULL if no parameters are being passed. - * - * RETURN: Status - * - * DESCRIPTION: Evaluate the object or find and execute the requested method - * - * MUTEX: Locks Namespace - * - ******************************************************************************/ - -acpi_status -acpi_ns_evaluate_relative(char *pathname, struct acpi_parameter_info *info) -{ - acpi_status status; - struct acpi_namespace_node *node = NULL; - union acpi_generic_state *scope_info; - char *internal_path = NULL; - - ACPI_FUNCTION_TRACE("ns_evaluate_relative"); - - /* - * Must have a valid object handle - */ - if (!info || !info->node) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Build an internal name string for the method */ - - status = acpi_ns_internalize_name(pathname, &internal_path); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - scope_info = acpi_ut_create_generic_state(); - if (!scope_info) { - goto cleanup1; - } - - /* Get the prefix handle and Node */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - info->node = acpi_ns_map_handle_to_node(info->node); - if (!info->node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - status = AE_BAD_PARAMETER; - goto cleanup; - } - - /* Lookup the name in the namespace */ - - scope_info->scope.node = info->node; - status = acpi_ns_lookup(scope_info, internal_path, ACPI_TYPE_ANY, - ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL, - &node); - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Object [%s] not found [%s]\n", - pathname, acpi_format_exception(status))); - goto cleanup; - } - - /* - * Now that we have a handle to the object, we can attempt to evaluate it. - */ - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", - pathname, node, acpi_ns_get_attached_object(node))); - - info->node = node; - status = acpi_ns_evaluate_by_handle(info); - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "*** Completed eval of object %s ***\n", pathname)); - - cleanup: - acpi_ut_delete_generic_state(scope_info); - - cleanup1: - ACPI_MEM_FREE(internal_path); - return_ACPI_STATUS(status); -} - /******************************************************************************* * - * FUNCTION: acpi_ns_evaluate_by_name + * FUNCTION: acpi_ns_evaluate * - * PARAMETERS: Pathname - Fully qualified pathname to the object - * Info - Method info block, contains: - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * Params - List of parameters to pass to the method, - * terminated by NULL. Params itself may be - * NULL if no parameters are being passed. - * - * RETURN: Status - * - * DESCRIPTION: Evaluate the object or rind and execute the requested method - * passing the given parameters - * - * MUTEX: Locks Namespace - * - ******************************************************************************/ - -acpi_status -acpi_ns_evaluate_by_name(char *pathname, struct acpi_parameter_info *info) -{ - acpi_status status; - char *internal_path = NULL; - - ACPI_FUNCTION_TRACE("ns_evaluate_by_name"); - - /* Build an internal name string for the method */ - - status = acpi_ns_internalize_name(pathname, &internal_path); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Lookup the name in the namespace */ - - status = acpi_ns_lookup(NULL, internal_path, ACPI_TYPE_ANY, - ACPI_IMODE_EXECUTE, ACPI_NS_NO_UPSEARCH, NULL, - &info->node); - - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "Object at [%s] was not found, status=%.4X\n", - pathname, status)); - goto cleanup; - } - - /* - * Now that we have a handle to the object, we can attempt to evaluate it. - */ - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", - pathname, info->node, - acpi_ns_get_attached_object(info->node))); - - status = acpi_ns_evaluate_by_handle(info); - - ACPI_DEBUG_PRINT((ACPI_DB_NAMES, - "*** Completed eval of object %s ***\n", pathname)); - - cleanup: - - /* Cleanup */ - - if (internal_path) { - ACPI_MEM_FREE(internal_path); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_evaluate_by_handle - * - * PARAMETERS: Info - Method info block, contains: - * Node - Method/Object Node to execute + * PARAMETERS: Info - Evaluation info block, contains: + * prefix_node - Prefix or Method/Object Node to execute + * Pathname - Name of method to execute, If NULL, the + * Node is the object to execute * Parameters - List of parameters to pass to the method, * terminated by NULL. Params itself may be * NULL if no parameters are being passed. @@ -248,29 +65,21 @@ acpi_ns_evaluate_by_name(char *pathname, struct acpi_parameter_info *info) * parameter_type - Type of Parameter list * return_object - Where to put method's return value (if * any). If NULL, no value is returned. + * Flags - ACPI_IGNORE_RETURN_VALUE to delete return * * RETURN: Status * - * DESCRIPTION: Evaluate object or execute the requested method passing the - * given parameters + * DESCRIPTION: Execute a control method or return the current value of an + * ACPI namespace object. * - * MUTEX: Locks Namespace + * MUTEX: Locks interpreter * ******************************************************************************/ - -acpi_status acpi_ns_evaluate_by_handle(struct acpi_parameter_info *info) +acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info) { acpi_status status; - ACPI_FUNCTION_TRACE("ns_evaluate_by_handle"); - - /* Check if namespace has been initialized */ - - if (!acpi_gbl_root_node) { - return_ACPI_STATUS(AE_NO_NAMESPACE); - } - - /* Parameter Validation */ + ACPI_FUNCTION_TRACE(ns_evaluate); if (!info) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -280,202 +89,120 @@ acpi_status acpi_ns_evaluate_by_handle(struct acpi_parameter_info *info) info->return_object = NULL; - /* Get the prefix handle and Node */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + /* + * Get the actual namespace node for the target object. Handles these cases: + * + * 1) Null node, Pathname (absolute path) + * 2) Node, Pathname (path relative to Node) + * 3) Node, Null Pathname + */ + status = acpi_ns_get_node(info->prefix_node, info->pathname, + ACPI_NS_NO_UPSEARCH, &info->resolved_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - info->node = acpi_ns_map_handle_to_node(info->node); - if (!info->node) { - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - /* * For a method alias, we must grab the actual method node so that proper * scoping context will be established before execution. */ - if (acpi_ns_get_type(info->node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) { - info->node = + if (acpi_ns_get_type(info->resolved_node) == + ACPI_TYPE_LOCAL_METHOD_ALIAS) { + info->resolved_node = ACPI_CAST_PTR(struct acpi_namespace_node, - info->node->object); + info->resolved_node->object); } + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s [%p] Value %p\n", info->pathname, + info->resolved_node, + acpi_ns_get_attached_object(info->resolved_node))); + /* * Two major cases here: - * 1) The object is an actual control method -- execute it. - * 2) The object is not a method -- just return it's current value * - * In both cases, the namespace is unlocked by the acpi_ns* procedure + * 1) The object is a control method -- execute it + * 2) The object is not a method -- just return it's current value */ - if (acpi_ns_get_type(info->node) == ACPI_TYPE_METHOD) { - /* - * Case 1) We have an actual control method to execute - */ - status = acpi_ns_execute_control_method(info); - } else { + if (acpi_ns_get_type(info->resolved_node) == ACPI_TYPE_METHOD) { /* - * Case 2) Object is NOT a method, just return its current value + * 1) Object is a control method - execute it */ - status = acpi_ns_get_object_value(info); - } - - /* - * Check if there is a return value on the stack that must be dealt with - */ - if (status == AE_CTRL_RETURN_VALUE) { - /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */ - - status = AE_OK; - } - - /* - * Namespace was unlocked by the handling acpi_ns* function, so we - * just return - */ - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ns_execute_control_method - * - * PARAMETERS: Info - Method info block, contains: - * Node - Method Node to execute - * obj_desc - Method object - * Parameters - List of parameters to pass to the method, - * terminated by NULL. Params itself may be - * NULL if no parameters are being passed. - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * parameter_type - Type of Parameter list - * return_object - Where to put method's return value (if - * any). If NULL, no value is returned. - * - * RETURN: Status - * - * DESCRIPTION: Execute the requested method passing the given parameters - * - * MUTEX: Assumes namespace is locked - * - ******************************************************************************/ - -static acpi_status -acpi_ns_execute_control_method(struct acpi_parameter_info *info) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE("ns_execute_control_method"); - - /* Verify that there is a method associated with this object */ - - info->obj_desc = acpi_ns_get_attached_object(info->node); - if (!info->obj_desc) { - ACPI_ERROR((AE_INFO, "No attached method object")); - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - return_ACPI_STATUS(AE_NULL_OBJECT); - } - - ACPI_DUMP_PATHNAME(info->node, "Execute Method:", - ACPI_LV_INFO, _COMPONENT); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Method at AML address %p Length %X\n", - info->obj_desc->method.aml_start + 1, - info->obj_desc->method.aml_length - 1)); - - /* - * Unlock the namespace before execution. This allows namespace access - * via the external Acpi* interfaces while a method is being executed. - * However, any namespace deletion must acquire both the namespace and - * interpreter locks to ensure that no thread is using the portion of the - * namespace that is being deleted. - */ - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } + /* Verify that there is a method object associated with this node */ - /* - * Execute the method via the interpreter. The interpreter is locked - * here before calling into the AML parser - */ - status = acpi_ex_enter_interpreter(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } + info->obj_desc = + acpi_ns_get_attached_object(info->resolved_node); + if (!info->obj_desc) { + ACPI_ERROR((AE_INFO, + "Control method has no attached sub-object")); + return_ACPI_STATUS(AE_NULL_OBJECT); + } - status = acpi_ps_execute_method(info); - acpi_ex_exit_interpreter(); + ACPI_DUMP_PATHNAME(info->resolved_node, "Execute Method:", + ACPI_LV_INFO, _COMPONENT); - return_ACPI_STATUS(status); -} + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Method at AML address %p Length %X\n", + info->obj_desc->method.aml_start + 1, + info->obj_desc->method.aml_length - 1)); -/******************************************************************************* - * - * FUNCTION: acpi_ns_get_object_value - * - * PARAMETERS: Info - Method info block, contains: - * Node - Object's NS node - * return_object - Where to put object value (if - * any). If NULL, no value is returned. - * - * RETURN: Status - * - * DESCRIPTION: Return the current value of the object - * - * MUTEX: Assumes namespace is locked, leaves namespace unlocked - * - ******************************************************************************/ + /* + * Any namespace deletion must acquire both the namespace and + * interpreter locks to ensure that no thread is using the portion of + * the namespace that is being deleted. + * + * Execute the method via the interpreter. The interpreter is locked + * here before calling into the AML parser + */ + status = acpi_ex_enter_interpreter(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } -static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info) -{ - acpi_status status = AE_OK; - struct acpi_namespace_node *resolved_node = info->node; + status = acpi_ps_execute_method(info); + acpi_ex_exit_interpreter(); + } else { + /* + * 2) Object is not a method, return its current value + */ - ACPI_FUNCTION_TRACE("ns_get_object_value"); + /* + * Objects require additional resolution steps (e.g., the Node may be + * a field that must be read, etc.) -- we can't just grab the object + * out of the node. + * + * Use resolve_node_to_value() to get the associated value. + * + * NOTE: we can get away with passing in NULL for a walk state because + * resolved_node is guaranteed to not be a reference to either a method + * local or a method argument (because this interface is never called + * from a running method.) + * + * Even though we do not directly invoke the interpreter for object + * resolution, we must lock it because we could access an opregion. + * The opregion access code assumes that the interpreter is locked. + */ + status = acpi_ex_enter_interpreter(); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } - /* - * Objects require additional resolution steps (e.g., the Node may be a - * field that must be read, etc.) -- we can't just grab the object out of - * the node. - */ + /* Function has a strange interface */ - /* - * Use resolve_node_to_value() to get the associated value. This call always - * deletes obj_desc (allocated above). - * - * NOTE: we can get away with passing in NULL for a walk state because - * obj_desc is guaranteed to not be a reference to either a method local or - * a method argument (because this interface can only be called from the - * acpi_evaluate external interface, never called from a running method.) - * - * Even though we do not directly invoke the interpreter for this, we must - * enter it because we could access an opregion. The opregion access code - * assumes that the interpreter is locked. - * - * We must release the namespace lock before entering the intepreter. - */ - status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } + status = + acpi_ex_resolve_node_to_value(&info->resolved_node, NULL); + acpi_ex_exit_interpreter(); - status = acpi_ex_enter_interpreter(); - if (ACPI_SUCCESS(status)) { - status = acpi_ex_resolve_node_to_value(&resolved_node, NULL); /* * If acpi_ex_resolve_node_to_value() succeeded, the return value was placed * in resolved_node. */ - acpi_ex_exit_interpreter(); - if (ACPI_SUCCESS(status)) { status = AE_CTRL_RETURN_VALUE; - info->return_object = ACPI_CAST_PTR - (union acpi_operand_object, resolved_node); + info->return_object = + ACPI_CAST_PTR(union acpi_operand_object, + info->resolved_node); + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Returning object %p [%s]\n", info->return_object, @@ -484,7 +211,30 @@ static acpi_status acpi_ns_get_object_value(struct acpi_parameter_info *info) } } - /* Namespace is unlocked */ + /* + * Check if there is a return value that must be dealt with + */ + if (status == AE_CTRL_RETURN_VALUE) { + + /* If caller does not want the return value, delete it */ + if (info->flags & ACPI_IGNORE_RETURN_VALUE) { + acpi_ut_remove_reference(info->return_object); + info->return_object = NULL; + } + + /* Map AE_CTRL_RETURN_VALUE to AE_OK, we are done with it */ + + status = AE_OK; + } + + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, + "*** Completed evaluation of object %s ***\n", + info->pathname)); + + /* + * Namespace was unlocked by the handling acpi_ns* function, so we + * just return + */ return_ACPI_STATUS(status); } diff --git a/drivers/acpi/namespace/nsinit.c b/drivers/acpi/namespace/nsinit.c index 9f929e479fd8..aec8488c0019 100644 --- a/drivers/acpi/namespace/nsinit.c +++ b/drivers/acpi/namespace/nsinit.c @@ -58,6 +58,10 @@ static acpi_status acpi_ns_init_one_device(acpi_handle obj_handle, u32 nesting_level, void *context, void **return_value); +static acpi_status +acpi_ns_find_ini_methods(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value); + /******************************************************************************* * * FUNCTION: acpi_ns_initialize_objects @@ -76,7 +80,7 @@ acpi_status acpi_ns_initialize_objects(void) acpi_status status; struct acpi_init_walk_info info; - ACPI_FUNCTION_TRACE("ns_initialize_objects"); + ACPI_FUNCTION_TRACE(ns_initialize_objects); ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, "**** Starting initialization of namespace objects ****\n")); @@ -93,7 +97,7 @@ acpi_status acpi_ns_initialize_objects(void) ACPI_UINT32_MAX, acpi_ns_init_one_object, &info, NULL); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace")); + ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); } ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, @@ -133,7 +137,7 @@ acpi_status acpi_ns_initialize_devices(void) acpi_status status; struct acpi_device_walk_info info; - ACPI_FUNCTION_TRACE("ns_initialize_devices"); + ACPI_FUNCTION_TRACE(ns_initialize_devices); /* Init counters */ @@ -142,30 +146,46 @@ acpi_status acpi_ns_initialize_devices(void) info.num_INI = 0; ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "Executing all Device _STA and_INI methods:")); + "Initializing Device/Processor/Thermal objects by executing _INI methods:")); + + /* Tree analysis: find all subtrees that contain _INI methods */ - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, FALSE, + acpi_ns_find_ini_methods, &info, NULL); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + goto error_exit; } - /* Walk namespace for all objects */ + /* Allocate the evaluation information block */ + + info.evaluate_info = + ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info.evaluate_info) { + status = AE_NO_MEMORY; + goto error_exit; + } + + /* Walk namespace to execute all _INIs on present devices */ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, TRUE, + ACPI_UINT32_MAX, FALSE, acpi_ns_init_one_device, &info, NULL); - (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - + ACPI_FREE(info.evaluate_info); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace")); + goto error_exit; } ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, - "\n%hd Devices found - executed %hd _STA, %hd _INI methods\n", - info.device_count, info.num_STA, info.num_INI)); + "\nExecuted %hd _INI methods requiring %hd _STA executions (examined %hd objects)\n", + info.num_INI, info.num_STA, info.device_count)); return_ACPI_STATUS(status); + + error_exit: + ACPI_EXCEPTION((AE_INFO, status, "During device initialization")); + return_ACPI_STATUS(status); } /******************************************************************************* @@ -200,7 +220,7 @@ acpi_ns_init_one_object(acpi_handle obj_handle, (struct acpi_namespace_node *)obj_handle; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_NAME("ns_init_one_object"); + ACPI_FUNCTION_NAME(ns_init_one_object); info->object_count++; @@ -311,6 +331,72 @@ acpi_ns_init_one_object(acpi_handle obj_handle, /******************************************************************************* * + * FUNCTION: acpi_ns_find_ini_methods + * + * PARAMETERS: acpi_walk_callback + * + * RETURN: acpi_status + * + * DESCRIPTION: Called during namespace walk. Finds objects named _INI under + * device/processor/thermal objects, and marks the entire subtree + * with a SUBTREE_HAS_INI flag. This flag is used during the + * subsequent device initialization walk to avoid entire subtrees + * that do not contain an _INI. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_find_ini_methods(acpi_handle obj_handle, + u32 nesting_level, void *context, void **return_value) +{ + struct acpi_device_walk_info *info = + ACPI_CAST_PTR(struct acpi_device_walk_info, context); + struct acpi_namespace_node *node; + struct acpi_namespace_node *parent_node; + + /* Keep count of device/processor/thermal objects */ + + node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); + if ((node->type == ACPI_TYPE_DEVICE) || + (node->type == ACPI_TYPE_PROCESSOR) || + (node->type == ACPI_TYPE_THERMAL)) { + info->device_count++; + return (AE_OK); + } + + /* We are only looking for methods named _INI */ + + if (!ACPI_COMPARE_NAME(node->name.ascii, METHOD_NAME__INI)) { + return (AE_OK); + } + + /* + * The only _INI methods that we care about are those that are + * present under Device, Processor, and Thermal objects. + */ + parent_node = acpi_ns_get_parent_node(node); + switch (parent_node->type) { + case ACPI_TYPE_DEVICE: + case ACPI_TYPE_PROCESSOR: + case ACPI_TYPE_THERMAL: + + /* Mark parent and bubble up the INI present flag to the root */ + + while (parent_node) { + parent_node->flags |= ANOBJ_SUBTREE_HAS_INI; + parent_node = acpi_ns_get_parent_node(parent_node); + } + break; + + default: + break; + } + + return (AE_OK); +} + +/******************************************************************************* + * * FUNCTION: acpi_ns_init_one_device * * PARAMETERS: acpi_walk_callback @@ -327,119 +413,165 @@ static acpi_status acpi_ns_init_one_device(acpi_handle obj_handle, u32 nesting_level, void *context, void **return_value) { - struct acpi_device_walk_info *info = - (struct acpi_device_walk_info *)context; - struct acpi_parameter_info pinfo; + struct acpi_device_walk_info *walk_info = + ACPI_CAST_PTR(struct acpi_device_walk_info, context); + struct acpi_evaluate_info *info = walk_info->evaluate_info; u32 flags; acpi_status status; - struct acpi_namespace_node *ini_node; struct acpi_namespace_node *device_node; - ACPI_FUNCTION_TRACE("ns_init_one_device"); + ACPI_FUNCTION_TRACE(ns_init_one_device); - device_node = acpi_ns_map_handle_to_node(obj_handle); - if (!device_node) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } + /* We are interested in Devices, Processors and thermal_zones only */ - /* - * We will run _STA/_INI on Devices, Processors and thermal_zones only - */ + device_node = ACPI_CAST_PTR(struct acpi_namespace_node, obj_handle); if ((device_node->type != ACPI_TYPE_DEVICE) && (device_node->type != ACPI_TYPE_PROCESSOR) && (device_node->type != ACPI_TYPE_THERMAL)) { return_ACPI_STATUS(AE_OK); } - if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) && - (!(acpi_dbg_level & ACPI_LV_INFO))) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); - } - - info->device_count++; - /* - * Check if the _INI method exists for this device - - * if _INI does not exist, there is no need to run _STA - * No _INI means device requires no initialization + * Because of an earlier namespace analysis, all subtrees that contain an + * _INI method are tagged. + * + * If this device subtree does not contain any _INI methods, we + * can exit now and stop traversing this entire subtree. */ - status = acpi_ns_search_node(*ACPI_CAST_PTR(u32, METHOD_NAME__INI), - device_node, ACPI_TYPE_METHOD, &ini_node); - if (ACPI_FAILURE(status)) { - /* No _INI method found - move on to next device */ - - return_ACPI_STATUS(AE_OK); + if (!(device_node->flags & ANOBJ_SUBTREE_HAS_INI)) { + return_ACPI_STATUS(AE_CTRL_DEPTH); } /* - * Run _STA to determine if we can run _INI on the device - - * the device must be present before _INI can be run. - * However, _STA is not required - assume device present if no _STA + * Run _STA to determine if this device is present and functioning. We + * must know this information for two important reasons (from ACPI spec): + * + * 1) We can only run _INI if the device is present. + * 2) We must abort the device tree walk on this subtree if the device is + * not present and is not functional (we will not examine the children) + * + * The _STA method is not required to be present under the device, we + * assume the device is present if _STA does not exist. */ - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD, - device_node, - METHOD_NAME__STA)); - - pinfo.node = device_node; - pinfo.parameters = NULL; - pinfo.parameter_type = ACPI_PARAM_ARGS; + ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname + (ACPI_TYPE_METHOD, device_node, METHOD_NAME__STA)); - status = acpi_ut_execute_STA(pinfo.node, &flags); + status = acpi_ut_execute_STA(device_node, &flags); if (ACPI_FAILURE(status)) { + /* Ignore error and move on to next device */ return_ACPI_STATUS(AE_OK); } + /* + * Flags == -1 means that _STA was not found. In this case, we assume that + * the device is both present and functional. + * + * From the ACPI spec, description of _STA: + * + * "If a device object (including the processor object) does not have an + * _STA object, then OSPM assumes that all of the above bits are set (in + * other words, the device is present, ..., and functioning)" + */ if (flags != ACPI_UINT32_MAX) { - info->num_STA++; + walk_info->num_STA++; } + /* + * Examine the PRESENT and FUNCTIONING status bits + * + * Note: ACPI spec does not seem to specify behavior for the present but + * not functioning case, so we assume functioning if present. + */ if (!(flags & ACPI_STA_DEVICE_PRESENT)) { - /* Don't look at children of a not present device */ - return_ACPI_STATUS(AE_CTRL_DEPTH); + /* Device is not present, we must examine the Functioning bit */ + + if (flags & ACPI_STA_DEVICE_FUNCTIONING) { + /* + * Device is not present but is "functioning". In this case, + * we will not run _INI, but we continue to examine the children + * of this device. + * + * From the ACPI spec, description of _STA: (Note - no mention + * of whether to run _INI or not on the device in question) + * + * "_STA may return bit 0 clear (not present) with bit 3 set + * (device is functional). This case is used to indicate a valid + * device for which no device driver should be loaded (for example, + * a bridge device.) Children of this device may be present and + * valid. OSPM should continue enumeration below a device whose + * _STA returns this bit combination" + */ + return_ACPI_STATUS(AE_OK); + } else { + /* + * Device is not present and is not functioning. We must abort the + * walk of this subtree immediately -- don't look at the children + * of such a device. + * + * From the ACPI spec, description of _INI: + * + * "If the _STA method indicates that the device is not present, + * OSPM will not run the _INI and will not examine the children + * of the device for _INI methods" + */ + return_ACPI_STATUS(AE_CTRL_DEPTH); + } } /* - * The device is present and _INI exists. Run the _INI method. - * (We already have the _INI node from above) + * The device is present or is assumed present if no _STA exists. + * Run the _INI if it exists (not required to exist) + * + * Note: We know there is an _INI within this subtree, but it may not be + * under this particular device, it may be lower in the branch. */ - ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname(ACPI_TYPE_METHOD, - pinfo.node, - METHOD_NAME__INI)); + ACPI_DEBUG_EXEC(acpi_ut_display_init_pathname + (ACPI_TYPE_METHOD, device_node, METHOD_NAME__INI)); + + info->prefix_node = device_node; + info->pathname = METHOD_NAME__INI; + info->parameters = NULL; + info->parameter_type = ACPI_PARAM_ARGS; + info->flags = ACPI_IGNORE_RETURN_VALUE; + + status = acpi_ns_evaluate(info); + if (ACPI_SUCCESS(status)) { + walk_info->num_INI++; + + if ((acpi_dbg_level <= ACPI_LV_ALL_EXCEPTIONS) && + (!(acpi_dbg_level & ACPI_LV_INFO))) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); + } + } +#ifdef ACPI_DEBUG_OUTPUT + else if (status != AE_NOT_FOUND) { - pinfo.node = ini_node; - status = acpi_ns_evaluate_by_handle(&pinfo); - if (ACPI_FAILURE(status)) { /* Ignore error and move on to next device */ -#ifdef ACPI_DEBUG_OUTPUT - char *scope_name = acpi_ns_get_external_pathname(ini_node); - - ACPI_WARNING((AE_INFO, "%s._INI failed: %s", - scope_name, acpi_format_exception(status))); + char *scope_name = + acpi_ns_get_external_pathname(info->resolved_node); - ACPI_MEM_FREE(scope_name); + ACPI_EXCEPTION((AE_INFO, status, "during %s._INI execution", + scope_name)); + ACPI_FREE(scope_name); + } #endif - } else { - /* Delete any return object (especially if implicit_return is enabled) */ - if (pinfo.return_object) { - acpi_ut_remove_reference(pinfo.return_object); - } + /* Ignore errors from above */ - /* Count of successful INIs */ - - info->num_INI++; - } + status = AE_OK; + /* + * The _INI method has been run if present; call the Global Initialization + * Handler for this device. + */ if (acpi_gbl_init_handler) { - /* External initialization handler is present, call it */ - status = - acpi_gbl_init_handler(pinfo.node, ACPI_INIT_DEVICE_INI); + acpi_gbl_init_handler(device_node, ACPI_INIT_DEVICE_INI); } - return_ACPI_STATUS(AE_OK); + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/namespace/nsload.c b/drivers/acpi/namespace/nsload.c index 4e0b0524c188..fe75d888e183 100644 --- a/drivers/acpi/namespace/nsload.c +++ b/drivers/acpi/namespace/nsload.c @@ -77,13 +77,14 @@ acpi_ns_load_table(struct acpi_table_desc *table_desc, { acpi_status status; - ACPI_FUNCTION_TRACE("ns_load_table"); + ACPI_FUNCTION_TRACE(ns_load_table); /* Check if table contains valid AML (must be DSDT, PSDT, SSDT, etc.) */ if (! (acpi_gbl_table_data[table_desc->type]. flags & ACPI_TABLE_EXECUTABLE)) { + /* Just ignore this table */ return_ACPI_STATUS(AE_OK); @@ -168,7 +169,7 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type) acpi_status status; struct acpi_table_desc *table_desc; - ACPI_FUNCTION_TRACE("ns_load_table_by_type"); + ACPI_FUNCTION_TRACE(ns_load_table_by_type); status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES); if (ACPI_FAILURE(status)) { @@ -180,11 +181,11 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type) * DSDT (one), SSDT/PSDT (multiple) */ switch (table_type) { - case ACPI_TABLE_DSDT: + case ACPI_TABLE_ID_DSDT: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace load: DSDT\n")); - table_desc = acpi_gbl_table_lists[ACPI_TABLE_DSDT].next; + table_desc = acpi_gbl_table_lists[ACPI_TABLE_ID_DSDT].next; /* If table already loaded into namespace, just return */ @@ -200,8 +201,8 @@ static acpi_status acpi_ns_load_table_by_type(acpi_table_type table_type) } break; - case ACPI_TABLE_SSDT: - case ACPI_TABLE_PSDT: + case ACPI_TABLE_ID_SSDT: + case ACPI_TABLE_ID_PSDT: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace load: %d SSDT or PSDTs\n", @@ -258,7 +259,7 @@ acpi_status acpi_ns_load_namespace(void) { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_load_name_space"); + ACPI_FUNCTION_TRACE(acpi_load_name_space); /* There must be at least a DSDT installed */ @@ -271,15 +272,15 @@ acpi_status acpi_ns_load_namespace(void) * Load the namespace. The DSDT is required, * but the SSDT and PSDT tables are optional. */ - status = acpi_ns_load_table_by_type(ACPI_TABLE_DSDT); + status = acpi_ns_load_table_by_type(ACPI_TABLE_ID_DSDT); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } /* Ignore exceptions from these */ - (void)acpi_ns_load_table_by_type(ACPI_TABLE_SSDT); - (void)acpi_ns_load_table_by_type(ACPI_TABLE_PSDT); + (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_SSDT); + (void)acpi_ns_load_table_by_type(ACPI_TABLE_ID_PSDT); ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, "ACPI Namespace successfully loaded at root %p\n", @@ -314,7 +315,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle) acpi_handle dummy; u32 level; - ACPI_FUNCTION_TRACE("ns_delete_subtree"); + ACPI_FUNCTION_TRACE(ns_delete_subtree); parent_handle = start_handle; child_handle = NULL; @@ -325,6 +326,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle) * to where we started. */ while (level > 0) { + /* Attempt to get the next object in this scope */ status = acpi_get_next_object(ACPI_TYPE_ANY, parent_handle, @@ -335,6 +337,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle) /* Did we get a new object? */ if (ACPI_SUCCESS(status)) { + /* Check if this object has any children */ if (ACPI_SUCCESS @@ -392,7 +395,7 @@ acpi_status acpi_ns_unload_namespace(acpi_handle handle) { acpi_status status; - ACPI_FUNCTION_TRACE("ns_unload_name_space"); + ACPI_FUNCTION_TRACE(ns_unload_name_space); /* Parameter validation */ diff --git a/drivers/acpi/namespace/nsnames.c b/drivers/acpi/namespace/nsnames.c index 639f653b4b6b..97b8332c9746 100644 --- a/drivers/acpi/namespace/nsnames.c +++ b/drivers/acpi/namespace/nsnames.c @@ -48,11 +48,6 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nsnames") -/* Local prototypes */ -static void -acpi_ns_build_external_path(struct acpi_namespace_node *node, - acpi_size size, char *name_buffer); - /******************************************************************************* * * FUNCTION: acpi_ns_build_external_path @@ -67,8 +62,7 @@ acpi_ns_build_external_path(struct acpi_namespace_node *node, * DESCRIPTION: Generate a full pathaname * ******************************************************************************/ - -static void +void acpi_ns_build_external_path(struct acpi_namespace_node *node, acpi_size size, char *name_buffer) { @@ -138,7 +132,7 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) char *name_buffer; acpi_size size; - ACPI_FUNCTION_TRACE_PTR("ns_get_external_pathname", node); + ACPI_FUNCTION_TRACE_PTR(ns_get_external_pathname, node); /* Calculate required buffer size based on depth below root */ @@ -146,7 +140,7 @@ char *acpi_ns_get_external_pathname(struct acpi_namespace_node *node) /* Allocate a buffer to be returned to caller */ - name_buffer = ACPI_MEM_CALLOCATE(size); + name_buffer = ACPI_ALLOCATE_ZEROED(size); if (!name_buffer) { ACPI_ERROR((AE_INFO, "Allocation failure")); return_PTR(NULL); @@ -219,7 +213,7 @@ acpi_ns_handle_to_pathname(acpi_handle target_handle, struct acpi_namespace_node *node; acpi_size required_size; - ACPI_FUNCTION_TRACE_PTR("ns_handle_to_pathname", target_handle); + ACPI_FUNCTION_TRACE_PTR(ns_handle_to_pathname, target_handle); node = acpi_ns_map_handle_to_node(target_handle); if (!node) { diff --git a/drivers/acpi/namespace/nsobject.c b/drivers/acpi/namespace/nsobject.c index 10ae6292bca4..aabe8794b908 100644 --- a/drivers/acpi/namespace/nsobject.c +++ b/drivers/acpi/namespace/nsobject.c @@ -76,19 +76,21 @@ acpi_ns_attach_object(struct acpi_namespace_node *node, union acpi_operand_object *last_obj_desc; acpi_object_type object_type = ACPI_TYPE_ANY; - ACPI_FUNCTION_TRACE("ns_attach_object"); + ACPI_FUNCTION_TRACE(ns_attach_object); /* * Parameter validation */ if (!node) { + /* Invalid handle */ - ACPI_ERROR((AE_INFO, "Null named_obj handle")); + ACPI_ERROR((AE_INFO, "Null NamedObj handle")); return_ACPI_STATUS(AE_BAD_PARAMETER); } if (!object && (ACPI_TYPE_ANY != type)) { + /* Null object */ ACPI_ERROR((AE_INFO, @@ -97,6 +99,7 @@ acpi_ns_attach_object(struct acpi_namespace_node *node, } if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { + /* Not a name handle */ ACPI_ERROR((AE_INFO, "Invalid handle %p [%s]", @@ -108,7 +111,7 @@ acpi_ns_attach_object(struct acpi_namespace_node *node, if (node->object == object) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Obj %p already installed in name_obj %p\n", + "Obj %p already installed in NameObj %p\n", object, node)); return_ACPI_STATUS(AE_OK); @@ -201,7 +204,7 @@ void acpi_ns_detach_object(struct acpi_namespace_node *node) { union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE("ns_detach_object"); + ACPI_FUNCTION_TRACE(ns_detach_object); obj_desc = node->object; @@ -252,7 +255,7 @@ union acpi_operand_object *acpi_ns_get_attached_object(struct acpi_namespace_node *node) { - ACPI_FUNCTION_TRACE_PTR("ns_get_attached_object", node); + ACPI_FUNCTION_TRACE_PTR(ns_get_attached_object, node); if (!node) { ACPI_WARNING((AE_INFO, "Null Node ptr")); @@ -287,7 +290,7 @@ union acpi_operand_object *acpi_ns_get_secondary_object(union acpi_operand_object *obj_desc) { - ACPI_FUNCTION_TRACE_PTR("ns_get_secondary_object", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ns_get_secondary_object, obj_desc); if ((!obj_desc) || (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_DATA) || diff --git a/drivers/acpi/namespace/nsparse.c b/drivers/acpi/namespace/nsparse.c index 232be4303653..155505a4ef69 100644 --- a/drivers/acpi/namespace/nsparse.c +++ b/drivers/acpi/namespace/nsparse.c @@ -62,13 +62,13 @@ ACPI_MODULE_NAME("nsparse") * ******************************************************************************/ acpi_status -acpi_ns_one_complete_parse(u8 pass_number, struct acpi_table_desc * table_desc) +acpi_ns_one_complete_parse(u8 pass_number, struct acpi_table_desc *table_desc) { union acpi_parse_object *parse_root; acpi_status status; struct acpi_walk_state *walk_state; - ACPI_FUNCTION_TRACE("ns_one_complete_parse"); + ACPI_FUNCTION_TRACE(ns_one_complete_parse); /* Create and init a Root Node */ @@ -124,7 +124,7 @@ acpi_ns_parse_table(struct acpi_table_desc *table_desc, { acpi_status status; - ACPI_FUNCTION_TRACE("ns_parse_table"); + ACPI_FUNCTION_TRACE(ns_parse_table); /* * AML Parse, pass 1 diff --git a/drivers/acpi/namespace/nssearch.c b/drivers/acpi/namespace/nssearch.c index d64b78952f24..500e2bbcfaf7 100644 --- a/drivers/acpi/namespace/nssearch.c +++ b/drivers/acpi/namespace/nssearch.c @@ -56,16 +56,16 @@ acpi_ns_search_parent_tree(u32 target_name, /******************************************************************************* * - * FUNCTION: acpi_ns_search_node + * FUNCTION: acpi_ns_search_one_scope * * PARAMETERS: target_name - Ascii ACPI name to search for - * Node - Starting node where search will begin + * parent_node - Starting node where search will begin * Type - Object type to match * return_node - Where the matched Named obj is returned * * RETURN: Status * - * DESCRIPTION: Search a single level of the namespace. Performs a + * DESCRIPTION: Search a single level of the namespace. Performs a * simple search of the specified level, and does not add * entries or search parents. * @@ -75,35 +75,40 @@ acpi_ns_search_parent_tree(u32 target_name, * * All namespace searching is linear in this implementation, but * could be easily modified to support any improved search - * algorithm. However, the linear search was chosen for simplicity + * algorithm. However, the linear search was chosen for simplicity * and because the trees are small and the other interpreter * execution overhead is relatively high. * + * Note: CPU execution analysis has shown that the AML interpreter spends + * a very small percentage of its time searching the namespace. Therefore, + * the linear search seems to be sufficient, as there would seem to be + * little value in improving the search. + * ******************************************************************************/ acpi_status -acpi_ns_search_node(u32 target_name, - struct acpi_namespace_node *node, - acpi_object_type type, - struct acpi_namespace_node **return_node) +acpi_ns_search_one_scope(u32 target_name, + struct acpi_namespace_node *parent_node, + acpi_object_type type, + struct acpi_namespace_node **return_node) { - struct acpi_namespace_node *next_node; + struct acpi_namespace_node *node; - ACPI_FUNCTION_TRACE("ns_search_node"); + ACPI_FUNCTION_TRACE(ns_search_one_scope); #ifdef ACPI_DEBUG_OUTPUT if (ACPI_LV_NAMES & acpi_dbg_level) { char *scope_name; - scope_name = acpi_ns_get_external_pathname(node); + scope_name = acpi_ns_get_external_pathname(parent_node); if (scope_name) { ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Searching %s (%p) For [%4.4s] (%s)\n", - scope_name, node, ACPI_CAST_PTR(char, - &target_name), + scope_name, parent_node, + ACPI_CAST_PTR(char, &target_name), acpi_ut_get_type_name(type))); - ACPI_MEM_FREE(scope_name); + ACPI_FREE(scope_name); } } #endif @@ -112,32 +117,33 @@ acpi_ns_search_node(u32 target_name, * Search for name at this namespace level, which is to say that we * must search for the name among the children of this object */ - next_node = node->child; - while (next_node) { + node = parent_node->child; + while (node) { + /* Check for match against the name */ - if (next_node->name.integer == target_name) { + if (node->name.integer == target_name) { + /* Resolve a control method alias if any */ - if (acpi_ns_get_type(next_node) == + if (acpi_ns_get_type(node) == ACPI_TYPE_LOCAL_METHOD_ALIAS) { - next_node = + node = ACPI_CAST_PTR(struct acpi_namespace_node, - next_node->object); + node->object); } - /* - * Found matching entry. - */ + /* Found matching entry */ + ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "Name [%4.4s] (%s) %p found in scope [%4.4s] %p\n", ACPI_CAST_PTR(char, &target_name), - acpi_ut_get_type_name(next_node-> - type), - next_node, - acpi_ut_get_node_name(node), node)); + acpi_ut_get_type_name(node->type), + node, + acpi_ut_get_node_name(parent_node), + parent_node)); - *return_node = next_node; + *return_node = node; return_ACPI_STATUS(AE_OK); } @@ -145,7 +151,8 @@ acpi_ns_search_node(u32 target_name, * The last entry in the list points back to the parent, * so a flag is used to indicate the end-of-list */ - if (next_node->flags & ANOBJ_END_OF_PEER_LIST) { + if (node->flags & ANOBJ_END_OF_PEER_LIST) { + /* Searched entire list, we are done */ break; @@ -153,7 +160,7 @@ acpi_ns_search_node(u32 target_name, /* Didn't match name, move on to the next peer object */ - next_node = next_node->peer; + node = node->peer; } /* Searched entire namespace level, not found */ @@ -162,7 +169,8 @@ acpi_ns_search_node(u32 target_name, "Name [%4.4s] (%s) not found in search in scope [%4.4s] %p first child %p\n", ACPI_CAST_PTR(char, &target_name), acpi_ut_get_type_name(type), - acpi_ut_get_node_name(node), node, node->child)); + acpi_ut_get_node_name(parent_node), parent_node, + parent_node->child)); return_ACPI_STATUS(AE_NOT_FOUND); } @@ -179,14 +187,14 @@ acpi_ns_search_node(u32 target_name, * RETURN: Status * * DESCRIPTION: Called when a name has not been found in the current namespace - * level. Before adding it or giving up, ACPI scope rules require + * level. Before adding it or giving up, ACPI scope rules require * searching enclosing scopes in cases identified by acpi_ns_local(). * * "A name is located by finding the matching name in the current * name space, and then in the parent name space. If the parent * name space does not contain the name, the search continues * recursively until either the name is found or the name space - * does not have a parent (the root of the name space). This + * does not have a parent (the root of the name space). This * indicates that the name is not found" (From ACPI Specification, * section 5.3) * @@ -201,7 +209,7 @@ acpi_ns_search_parent_tree(u32 target_name, acpi_status status; struct acpi_namespace_node *parent_node; - ACPI_FUNCTION_TRACE("ns_search_parent_tree"); + ACPI_FUNCTION_TRACE(ns_search_parent_tree); parent_node = acpi_ns_get_parent_node(node); @@ -235,20 +243,19 @@ acpi_ns_search_parent_tree(u32 target_name, */ while (parent_node) { /* - * Search parent scope. Use TYPE_ANY because we don't care about the + * Search parent scope. Use TYPE_ANY because we don't care about the * object type at this point, we only care about the existence of - * the actual name we are searching for. Typechecking comes later. + * the actual name we are searching for. Typechecking comes later. */ - status = acpi_ns_search_node(target_name, parent_node, + status = + acpi_ns_search_one_scope(target_name, parent_node, ACPI_TYPE_ANY, return_node); if (ACPI_SUCCESS(status)) { return_ACPI_STATUS(status); } - /* - * Not found here, go up another level - * (until we reach the root) - */ + /* Not found here, go up another level (until we reach the root) */ + parent_node = acpi_ns_get_parent_node(parent_node); } @@ -273,7 +280,7 @@ acpi_ns_search_parent_tree(u32 target_name, * RETURN: Status * * DESCRIPTION: Search for a name segment in a single namespace level, - * optionally adding it if it is not found. If the passed + * optionally adding it if it is not found. If the passed * Type is not Any and the type previously stored in the * entry was Any (i.e. unknown), update the stored type. * @@ -293,29 +300,46 @@ acpi_ns_search_and_enter(u32 target_name, acpi_status status; struct acpi_namespace_node *new_node; - ACPI_FUNCTION_TRACE("ns_search_and_enter"); + ACPI_FUNCTION_TRACE(ns_search_and_enter); /* Parameter validation */ if (!node || !target_name || !return_node) { ACPI_ERROR((AE_INFO, - "Null param: Node %p Name %X return_node %p", + "Null parameter: Node %p Name %X ReturnNode %p", node, target_name, return_node)); return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* Name must consist of printable characters */ - + /* + * Name must consist of valid ACPI characters. We will repair the name if + * necessary because we don't want to abort because of this, but we want + * all namespace names to be printable. A warning message is appropriate. + * + * This issue came up because there are in fact machines that exhibit + * this problem, and we want to be able to enable ACPI support for them, + * even though there are a few bad names. + */ if (!acpi_ut_valid_acpi_name(target_name)) { - ACPI_ERROR((AE_INFO, "Bad character in ACPI Name: %X", - target_name)); - return_ACPI_STATUS(AE_BAD_CHARACTER); + target_name = acpi_ut_repair_name(target_name); + + /* Report warning only if in strict mode or debug mode */ + + if (!acpi_gbl_enable_interpreter_slack) { + ACPI_WARNING((AE_INFO, + "Found bad character(s) in name, repaired: [%4.4s]\n", + ACPI_CAST_PTR(char, &target_name))); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_WARN, + "Found bad character(s) in name, repaired: [%4.4s]\n", + ACPI_CAST_PTR(char, &target_name))); + } } /* Try to find the name in the namespace level specified by the caller */ *return_node = ACPI_ENTRY_NOT_FOUND; - status = acpi_ns_search_node(target_name, node, type, return_node); + status = acpi_ns_search_one_scope(target_name, node, type, return_node); if (status != AE_NOT_FOUND) { /* * If we found it AND the request specifies that a find is an error, @@ -325,18 +349,16 @@ acpi_ns_search_and_enter(u32 target_name, status = AE_ALREADY_EXISTS; } - /* - * Either found it or there was an error - * -- finished either way - */ + /* Either found it or there was an error: finished either way */ + return_ACPI_STATUS(status); } /* - * The name was not found. If we are NOT performing the first pass + * The name was not found. If we are NOT performing the first pass * (name entry) of loading the namespace, search the parent tree (all the * way to the root if necessary.) We don't want to perform the parent - * search when the namespace is actually being loaded. We want to perform + * search when the namespace is actually being loaded. We want to perform * the search when namespace references are being resolved (load pass 2) * and during the execution phase. */ @@ -354,9 +376,8 @@ acpi_ns_search_and_enter(u32 target_name, } } - /* - * In execute mode, just search, never add names. Exit now. - */ + /* In execute mode, just search, never add names. Exit now */ + if (interpreter_mode == ACPI_IMODE_EXECUTE) { ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%4.4s Not found in %p [Not adding]\n", @@ -371,11 +392,18 @@ acpi_ns_search_and_enter(u32 target_name, if (!new_node) { return_ACPI_STATUS(AE_NO_MEMORY); } +#ifdef ACPI_ASL_COMPILER + /* + * Node is an object defined by an External() statement + */ + if (flags & ACPI_NS_EXTERNAL) { + new_node->flags |= ANOBJ_IS_EXTERNAL; + } +#endif /* Install the new object into the parent's list of children */ acpi_ns_install_node(walk_state, node, new_node, type); *return_node = new_node; - return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/namespace/nsutils.c b/drivers/acpi/namespace/nsutils.c index 3e7cad549a38..aa4e799d9a8c 100644 --- a/drivers/acpi/namespace/nsutils.c +++ b/drivers/acpi/namespace/nsutils.c @@ -78,15 +78,17 @@ acpi_ns_report_error(char *module_name, char *internal_name, acpi_status lookup_status) { acpi_status status; + u32 bad_name; char *name = NULL; - acpi_ut_report_error(module_name, line_number); + acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); if (lookup_status == AE_BAD_CHARACTER) { + /* There is a non-ascii character in the name */ - acpi_os_printf("[0x%4.4X] (NON-ASCII)", - *(ACPI_CAST_PTR(u32, internal_name))); + ACPI_MOVE_32_TO_32(&bad_name, internal_name); + acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name); } else { /* Convert path to external format */ @@ -102,7 +104,7 @@ acpi_ns_report_error(char *module_name, } if (name) { - ACPI_MEM_FREE(name); + ACPI_FREE(name); } } @@ -137,11 +139,12 @@ acpi_ns_report_method_error(char *module_name, acpi_status status; struct acpi_namespace_node *node = prefix_node; - acpi_ut_report_error(module_name, line_number); + acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); if (path) { - status = acpi_ns_get_node_by_path(path, prefix_node, - ACPI_NS_NO_UPSEARCH, &node); + status = + acpi_ns_get_node(prefix_node, path, ACPI_NS_NO_UPSEARCH, + &node); if (ACPI_FAILURE(status)) { acpi_os_printf("[Could not get node by pathname]"); } @@ -185,7 +188,7 @@ acpi_ns_print_node_pathname(struct acpi_namespace_node *node, char *message) } acpi_os_printf("[%s] (Node %p)", (char *)buffer.pointer, node); - ACPI_MEM_FREE(buffer.pointer); + ACPI_FREE(buffer.pointer); } } @@ -239,7 +242,7 @@ static u8 acpi_ns_valid_path_separator(char sep) acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node) { - ACPI_FUNCTION_TRACE("ns_get_type"); + ACPI_FUNCTION_TRACE(ns_get_type); if (!node) { ACPI_WARNING((AE_INFO, "Null Node parameter")); @@ -264,9 +267,10 @@ acpi_object_type acpi_ns_get_type(struct acpi_namespace_node * node) u32 acpi_ns_local(acpi_object_type type) { - ACPI_FUNCTION_TRACE("ns_local"); + ACPI_FUNCTION_TRACE(ns_local); if (!acpi_ut_valid_object_type(type)) { + /* Type code out of range */ ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); @@ -363,7 +367,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info) char *result = NULL; acpi_native_uint i; - ACPI_FUNCTION_TRACE("ns_build_internal_name"); + ACPI_FUNCTION_TRACE(ns_build_internal_name); /* Setup the correct prefixes, counts, and pointers */ @@ -411,6 +415,7 @@ acpi_status acpi_ns_build_internal_name(struct acpi_namestring_info *info) for (i = 0; i < ACPI_NAME_SIZE; i++) { if (acpi_ns_valid_path_separator(*external_name) || (*external_name == 0)) { + /* Pad the segment with underscore(s) if segment is short */ result[i] = '_'; @@ -473,7 +478,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name) struct acpi_namestring_info info; acpi_status status; - ACPI_FUNCTION_TRACE("ns_internalize_name"); + ACPI_FUNCTION_TRACE(ns_internalize_name); if ((!external_name) || (*external_name == 0) || (!converted_name)) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -486,7 +491,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name) /* We need a segment to store the internal name */ - internal_name = ACPI_MEM_CALLOCATE(info.length); + internal_name = ACPI_ALLOCATE_ZEROED(info.length); if (!internal_name) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -496,7 +501,7 @@ acpi_status acpi_ns_internalize_name(char *external_name, char **converted_name) info.internal_name = internal_name; status = acpi_ns_build_internal_name(&info); if (ACPI_FAILURE(status)) { - ACPI_MEM_FREE(internal_name); + ACPI_FREE(internal_name); return_ACPI_STATUS(status); } @@ -533,7 +538,7 @@ acpi_ns_externalize_name(u32 internal_name_length, acpi_native_uint i = 0; acpi_native_uint j = 0; - ACPI_FUNCTION_TRACE("ns_externalize_name"); + ACPI_FUNCTION_TRACE(ns_externalize_name); if (!internal_name_length || !internal_name || !converted_name) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -628,7 +633,7 @@ acpi_ns_externalize_name(u32 internal_name_length, /* * Build converted_name */ - *converted_name = ACPI_MEM_CALLOCATE(required_length); + *converted_name = ACPI_ALLOCATE_ZEROED(required_length); if (!(*converted_name)) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -681,13 +686,9 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle) ACPI_FUNCTION_ENTRY(); /* - * Simple implementation. + * Simple implementation */ - if (!handle) { - return (NULL); - } - - if (handle == ACPI_ROOT_OBJECT) { + if ((!handle) || (handle == ACPI_ROOT_OBJECT)) { return (acpi_gbl_root_node); } @@ -697,7 +698,7 @@ struct acpi_namespace_node *acpi_ns_map_handle_to_node(acpi_handle handle) return (NULL); } - return ((struct acpi_namespace_node *)handle); + return (ACPI_CAST_PTR(struct acpi_namespace_node, handle)); } /******************************************************************************* @@ -752,7 +753,7 @@ void acpi_ns_terminate(void) { union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE("ns_terminate"); + ACPI_FUNCTION_TRACE(ns_terminate); /* * 1) Free the entire namespace -- all nodes and objects @@ -792,9 +793,10 @@ void acpi_ns_terminate(void) u32 acpi_ns_opens_scope(acpi_object_type type) { - ACPI_FUNCTION_TRACE_STR("ns_opens_scope", acpi_ut_get_type_name(type)); + ACPI_FUNCTION_TRACE_STR(ns_opens_scope, acpi_ut_get_type_name(type)); if (!acpi_ut_valid_object_type(type)) { + /* type code out of range */ ACPI_WARNING((AE_INFO, "Invalid Object Type %X", type)); @@ -806,12 +808,12 @@ u32 acpi_ns_opens_scope(acpi_object_type type) /******************************************************************************* * - * FUNCTION: acpi_ns_get_node_by_path + * FUNCTION: acpi_ns_get_node * * PARAMETERS: *Pathname - Name to be found, in external (ASL) format. The * \ (backslash) and ^ (carat) prefixes, and the * . (period) to separate segments are supported. - * start_node - Root of subtree to be searched, or NS_ALL for the + * prefix_node - Root of subtree to be searched, or NS_ALL for the * root of the name space. If Name is fully * qualified (first s8 is '\'), the passed value * of Scope will not be accessed. @@ -827,23 +829,29 @@ u32 acpi_ns_opens_scope(acpi_object_type type) ******************************************************************************/ acpi_status -acpi_ns_get_node_by_path(char *pathname, - struct acpi_namespace_node *start_node, - u32 flags, struct acpi_namespace_node **return_node) +acpi_ns_get_node(struct acpi_namespace_node *prefix_node, + char *pathname, + u32 flags, struct acpi_namespace_node **return_node) { union acpi_generic_state scope_info; acpi_status status; - char *internal_path = NULL; - - ACPI_FUNCTION_TRACE_PTR("ns_get_node_by_path", pathname); + char *internal_path; - if (pathname) { - /* Convert path to internal representation */ + ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname); - status = acpi_ns_internalize_name(pathname, &internal_path); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + if (!pathname) { + *return_node = prefix_node; + if (!prefix_node) { + *return_node = acpi_gbl_root_node; } + return_ACPI_STATUS(AE_OK); + } + + /* Convert path to internal representation */ + + status = acpi_ns_internalize_name(pathname, &internal_path); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } /* Must lock namespace during lookup */ @@ -855,26 +863,23 @@ acpi_ns_get_node_by_path(char *pathname, /* Setup lookup scope (search starting point) */ - scope_info.scope.node = start_node; + scope_info.scope.node = prefix_node; /* Lookup the name in the namespace */ - status = acpi_ns_lookup(&scope_info, internal_path, - ACPI_TYPE_ANY, ACPI_IMODE_EXECUTE, - (flags | ACPI_NS_DONT_OPEN_SCOPE), - NULL, return_node); + status = acpi_ns_lookup(&scope_info, internal_path, ACPI_TYPE_ANY, + ACPI_IMODE_EXECUTE, + (flags | ACPI_NS_DONT_OPEN_SCOPE), NULL, + return_node); if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s, %s\n", - internal_path, - acpi_format_exception(status))); + pathname, acpi_format_exception(status))); } (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); cleanup: - if (internal_path) { - ACPI_MEM_FREE(internal_path); - } + ACPI_FREE(internal_path); return_ACPI_STATUS(status); } @@ -960,9 +965,10 @@ acpi_name acpi_ns_find_parent_name(struct acpi_namespace_node * child_node) { struct acpi_namespace_node *parent_node; - ACPI_FUNCTION_TRACE("ns_find_parent_name"); + ACPI_FUNCTION_TRACE(ns_find_parent_name); if (child_node) { + /* Valid entry. Get the parent Node */ parent_node = acpi_ns_get_parent_node(child_node); diff --git a/drivers/acpi/namespace/nswalk.c b/drivers/acpi/namespace/nswalk.c index fcab1e784b81..c8f6bef16ed0 100644 --- a/drivers/acpi/namespace/nswalk.c +++ b/drivers/acpi/namespace/nswalk.c @@ -76,6 +76,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, ACPI_FUNCTION_ENTRY(); if (!child_node) { + /* It's really the parent's _scope_ that we want */ if (parent_node->child) { @@ -92,6 +93,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, /* If any type is OK, we are done */ if (type == ACPI_TYPE_ANY) { + /* next_node is NULL if we are at the end-of-list */ return (next_node); @@ -100,6 +102,7 @@ struct acpi_namespace_node *acpi_ns_get_next_node(acpi_object_type type, /* Must search for the node -- but within this scope only */ while (next_node) { + /* If type matches, we are done */ if (next_node->type == type) { @@ -161,7 +164,7 @@ acpi_ns_walk_namespace(acpi_object_type type, acpi_object_type child_type; u32 level; - ACPI_FUNCTION_TRACE("ns_walk_namespace"); + ACPI_FUNCTION_TRACE(ns_walk_namespace); /* Special case for the namespace Root Node */ @@ -182,6 +185,7 @@ acpi_ns_walk_namespace(acpi_object_type type, * bubbled up to (and passed) the original parent handle (start_entry) */ while (level > 0) { + /* Get the next node in this scope. Null if not found */ status = AE_OK; diff --git a/drivers/acpi/namespace/nsxfeval.c b/drivers/acpi/namespace/nsxfeval.c index a95f636dc35d..6d9bd45af30a 100644 --- a/drivers/acpi/namespace/nsxfeval.c +++ b/drivers/acpi/namespace/nsxfeval.c @@ -42,8 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acnamesp.h> #include <acpi/acinterp.h> @@ -51,6 +49,7 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nsxfeval") +#ifdef ACPI_FUTURE_USAGE /******************************************************************************* * * FUNCTION: acpi_evaluate_object_typed @@ -71,18 +70,17 @@ ACPI_MODULE_NAME("nsxfeval") * be valid (non-null) * ******************************************************************************/ -#ifdef ACPI_FUTURE_USAGE acpi_status acpi_evaluate_object_typed(acpi_handle handle, acpi_string pathname, - struct acpi_object_list *external_params, - struct acpi_buffer *return_buffer, + struct acpi_object_list * external_params, + struct acpi_buffer * return_buffer, acpi_object_type return_type) { acpi_status status; u8 must_free = FALSE; - ACPI_FUNCTION_TRACE("acpi_evaluate_object_typed"); + ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed); /* Return buffer must be valid */ @@ -110,6 +108,7 @@ acpi_evaluate_object_typed(acpi_handle handle, } if (return_buffer->length == 0) { + /* Error because caller specifically asked for a return value */ ACPI_ERROR((AE_INFO, "No return value")); @@ -131,6 +130,7 @@ acpi_evaluate_object_typed(acpi_handle handle, acpi_ut_get_type_name(return_type))); if (must_free) { + /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */ acpi_os_free(return_buffer->pointer); @@ -140,6 +140,8 @@ acpi_evaluate_object_typed(acpi_handle handle, return_buffer->length = 0; return_ACPI_STATUS(AE_TYPE); } + +ACPI_EXPORT_SYMBOL(acpi_evaluate_object_typed) #endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* @@ -161,7 +163,6 @@ acpi_evaluate_object_typed(acpi_handle handle, * be valid (non-null) * ******************************************************************************/ - acpi_status acpi_evaluate_object(acpi_handle handle, acpi_string pathname, @@ -170,51 +171,61 @@ acpi_evaluate_object(acpi_handle handle, { acpi_status status; acpi_status status2; - struct acpi_parameter_info info; + struct acpi_evaluate_info *info; acpi_size buffer_space_needed; u32 i; - ACPI_FUNCTION_TRACE("acpi_evaluate_object"); + ACPI_FUNCTION_TRACE(acpi_evaluate_object); - info.node = handle; - info.parameters = NULL; - info.return_object = NULL; - info.parameter_type = ACPI_PARAM_ARGS; + /* Allocate and initialize the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->pathname = pathname; + info->parameter_type = ACPI_PARAM_ARGS; + + /* Convert and validate the device handle */ + + info->prefix_node = acpi_ns_map_handle_to_node(handle); + if (!info->prefix_node) { + status = AE_BAD_PARAMETER; + goto cleanup; + } /* - * If there are parameters to be passed to the object - * (which must be a control method), the external objects - * must be converted to internal objects + * If there are parameters to be passed to a control method, the external + * objects must all be converted to internal objects */ if (external_params && external_params->count) { /* * Allocate a new parameter block for the internal objects * Add 1 to count to allow for null terminated internal list */ - info.parameters = ACPI_MEM_CALLOCATE(((acpi_size) - external_params->count + - 1) * sizeof(void *)); - if (!info.parameters) { - return_ACPI_STATUS(AE_NO_MEMORY); + info->parameters = ACPI_ALLOCATE_ZEROED(((acpi_size) + external_params-> + count + + 1) * sizeof(void *)); + if (!info->parameters) { + status = AE_NO_MEMORY; + goto cleanup; } - /* - * Convert each external object in the list to an - * internal object - */ + /* Convert each external object in the list to an internal object */ + for (i = 0; i < external_params->count; i++) { status = acpi_ut_copy_eobject_to_iobject(&external_params-> pointer[i], - &info. + &info-> parameters[i]); if (ACPI_FAILURE(status)) { - acpi_ut_delete_internal_object_list(info. - parameters); - return_ACPI_STATUS(status); + goto cleanup; } } - info.parameters[external_params->count] = NULL; + info->parameters[external_params->count] = NULL; } /* @@ -224,43 +235,31 @@ acpi_evaluate_object(acpi_handle handle, * 3) Valid handle */ if ((pathname) && (acpi_ns_valid_root_prefix(pathname[0]))) { - /* - * The path is fully qualified, just evaluate by name - */ - status = acpi_ns_evaluate_by_name(pathname, &info); + + /* The path is fully qualified, just evaluate by name */ + + info->prefix_node = NULL; + status = acpi_ns_evaluate(info); } else if (!handle) { /* - * A handle is optional iff a fully qualified pathname - * is specified. Since we've already handled fully - * qualified names above, this is an error + * A handle is optional iff a fully qualified pathname is specified. + * Since we've already handled fully qualified names above, this is + * an error */ if (!pathname) { - ACPI_ERROR((AE_INFO, - "Both Handle and Pathname are NULL")); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Both Handle and Pathname are NULL")); } else { - ACPI_ERROR((AE_INFO, - "Handle is NULL and Pathname is relative")); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Null Handle with relative pathname [%s]", + pathname)); } status = AE_BAD_PARAMETER; } else { - /* - * We get here if we have a handle -- and if we have a - * pathname it is relative. The handle will be validated - * in the lower procedures - */ - if (!pathname) { - /* - * The null pathname case means the handle is for - * the actual object to be evaluated - */ - status = acpi_ns_evaluate_by_handle(&info); - } else { - /* - * Both a Handle and a relative Pathname - */ - status = acpi_ns_evaluate_relative(pathname, &info); - } + /* We have a namespace a node and a possible relative path */ + + status = acpi_ns_evaluate(info); } /* @@ -268,10 +267,10 @@ acpi_evaluate_object(acpi_handle handle, * copy the return value to an external object. */ if (return_buffer) { - if (!info.return_object) { + if (!info->return_object) { return_buffer->length = 0; } else { - if (ACPI_GET_DESCRIPTOR_TYPE(info.return_object) == + if (ACPI_GET_DESCRIPTOR_TYPE(info->return_object) == ACPI_DESC_TYPE_NAMED) { /* * If we received a NS Node as a return object, this means that @@ -282,19 +281,19 @@ acpi_evaluate_object(acpi_handle handle, * support for various types at a later date if necessary. */ status = AE_TYPE; - info.return_object = NULL; /* No need to delete a NS Node */ + info->return_object = NULL; /* No need to delete a NS Node */ return_buffer->length = 0; } if (ACPI_SUCCESS(status)) { - /* - * Find out how large a buffer is needed - * to contain the returned object - */ + + /* Get the size of the returned object */ + status = - acpi_ut_get_object_size(info.return_object, + acpi_ut_get_object_size(info->return_object, &buffer_space_needed); if (ACPI_SUCCESS(status)) { + /* Validate/Allocate/Clear caller buffer */ status = @@ -303,7 +302,8 @@ acpi_evaluate_object(acpi_handle handle, buffer_space_needed); if (ACPI_FAILURE(status)) { /* - * Caller's buffer is too small or a new one can't be allocated + * Caller's buffer is too small or a new one can't + * be allocated */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Needed buffer size %X, %s\n", @@ -312,12 +312,11 @@ acpi_evaluate_object(acpi_handle handle, acpi_format_exception (status))); } else { - /* - * We have enough space for the object, build it - */ + /* We have enough space for the object, build it */ + status = acpi_ut_copy_iobject_to_eobject - (info.return_object, + (info->return_object, return_buffer); } } @@ -325,35 +324,37 @@ acpi_evaluate_object(acpi_handle handle, } } - if (info.return_object) { + if (info->return_object) { /* - * Delete the internal return object. NOTE: Interpreter - * must be locked to avoid race condition. + * Delete the internal return object. NOTE: Interpreter must be + * locked to avoid race condition. */ status2 = acpi_ex_enter_interpreter(); if (ACPI_SUCCESS(status2)) { - /* - * Delete the internal return object. (Or at least - * decrement the reference count by one) - */ - acpi_ut_remove_reference(info.return_object); + + /* Remove one reference on the return object (should delete it) */ + + acpi_ut_remove_reference(info->return_object); acpi_ex_exit_interpreter(); } } - /* - * Free the input parameter list (if we created one), - */ - if (info.parameters) { + cleanup: + + /* Free the input parameter list (if we created one) */ + + if (info->parameters) { + /* Free the allocated parameter block */ - acpi_ut_delete_internal_object_list(info.parameters); + acpi_ut_delete_internal_object_list(info->parameters); } + ACPI_FREE(info); return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_evaluate_object); +ACPI_EXPORT_SYMBOL(acpi_evaluate_object) /******************************************************************************* * @@ -384,7 +385,6 @@ EXPORT_SYMBOL(acpi_evaluate_object); * function, etc. * ******************************************************************************/ - acpi_status acpi_walk_namespace(acpi_object_type type, acpi_handle start_object, @@ -394,7 +394,7 @@ acpi_walk_namespace(acpi_object_type type, { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_walk_namespace"); + ACPI_FUNCTION_TRACE(acpi_walk_namespace); /* Parameter validation */ @@ -421,7 +421,7 @@ acpi_walk_namespace(acpi_object_type type, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_walk_namespace); +ACPI_EXPORT_SYMBOL(acpi_walk_namespace) /******************************************************************************* * @@ -436,7 +436,6 @@ EXPORT_SYMBOL(acpi_walk_namespace); * on that. * ******************************************************************************/ - static acpi_status acpi_ns_get_device_callback(acpi_handle obj_handle, u32 nesting_level, @@ -473,6 +472,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, } if (!(flags & ACPI_STA_DEVICE_PRESENT)) { + /* Don't examine children of the device if not present */ return (AE_CTRL_DEPTH); @@ -489,6 +489,7 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, } if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) { + /* Get the list of Compatible IDs */ status = acpi_ut_execute_CID(node, &cid); @@ -505,11 +506,11 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, sizeof(struct acpi_compatible_id)) != 0) { - ACPI_MEM_FREE(cid); + ACPI_FREE(cid); return (AE_OK); } } - ACPI_MEM_FREE(cid); + ACPI_FREE(cid); } } @@ -551,7 +552,7 @@ acpi_get_devices(char *HID, acpi_status status; struct acpi_get_devices_info info; - ACPI_FUNCTION_TRACE("acpi_get_devices"); + ACPI_FUNCTION_TRACE(acpi_get_devices); /* Parameter validation */ @@ -563,9 +564,9 @@ acpi_get_devices(char *HID, * We're going to call their callback from OUR callback, so we need * to know what it is, and their context parameter. */ + info.hid = HID; info.context = context; info.user_function = user_function; - info.hid = HID; /* * Lock the namespace around the walk. @@ -578,9 +579,8 @@ acpi_get_devices(char *HID, return_ACPI_STATUS(status); } - status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, - ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - ACPI_NS_WALK_UNLOCK, + status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, + ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, acpi_ns_get_device_callback, &info, return_value); @@ -588,7 +588,7 @@ acpi_get_devices(char *HID, return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_devices); +ACPI_EXPORT_SYMBOL(acpi_get_devices) /******************************************************************************* * @@ -603,7 +603,6 @@ EXPORT_SYMBOL(acpi_get_devices); * DESCRIPTION: Attach arbitrary data and handler to a namespace node. * ******************************************************************************/ - acpi_status acpi_attach_data(acpi_handle obj_handle, acpi_object_handler handler, void *data) @@ -637,6 +636,8 @@ acpi_attach_data(acpi_handle obj_handle, return (status); } +ACPI_EXPORT_SYMBOL(acpi_attach_data) + /******************************************************************************* * * FUNCTION: acpi_detach_data @@ -649,7 +650,6 @@ acpi_attach_data(acpi_handle obj_handle, * DESCRIPTION: Remove data that was previously attached to a node. * ******************************************************************************/ - acpi_status acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler) { @@ -682,6 +682,8 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler) return (status); } +ACPI_EXPORT_SYMBOL(acpi_detach_data) + /******************************************************************************* * * FUNCTION: acpi_get_data @@ -695,7 +697,6 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler) * DESCRIPTION: Retrieve data that was previously attached to a namespace node. * ******************************************************************************/ - acpi_status acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) { @@ -727,3 +728,5 @@ acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data) (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return (status); } + +ACPI_EXPORT_SYMBOL(acpi_get_data) diff --git a/drivers/acpi/namespace/nsxfname.c b/drivers/acpi/namespace/nsxfname.c index 8cd8675a47c0..978213a6c19f 100644 --- a/drivers/acpi/namespace/nsxfname.c +++ b/drivers/acpi/namespace/nsxfname.c @@ -42,8 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acnamesp.h> @@ -114,9 +112,8 @@ acpi_get_handle(acpi_handle parent, /* * Find the Node and convert to a handle */ - status = - acpi_ns_get_node_by_path(pathname, prefix_node, ACPI_NS_NO_UPSEARCH, - &node); + status = acpi_ns_get_node(prefix_node, pathname, ACPI_NS_NO_UPSEARCH, + &node); *ret_handle = NULL; if (ACPI_SUCCESS(status)) { @@ -126,7 +123,7 @@ acpi_get_handle(acpi_handle parent, return (status); } -EXPORT_SYMBOL(acpi_get_handle); +ACPI_EXPORT_SYMBOL(acpi_get_handle) /****************************************************************************** * @@ -143,7 +140,6 @@ EXPORT_SYMBOL(acpi_get_handle); * complementary functions. * ******************************************************************************/ - acpi_status acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) { @@ -162,6 +158,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) } if (name_type == ACPI_FULL_PATHNAME) { + /* Get the full pathname (From the namespace root) */ status = acpi_ns_handle_to_pathname(handle, buffer); @@ -203,7 +200,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer) return (status); } -EXPORT_SYMBOL(acpi_get_name); +ACPI_EXPORT_SYMBOL(acpi_get_name) /****************************************************************************** * @@ -219,7 +216,6 @@ EXPORT_SYMBOL(acpi_get_name); * control methods (Such as in the case of a device.) * ******************************************************************************/ - acpi_status acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) { @@ -241,7 +237,7 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) return (status); } - info = ACPI_MEM_CALLOCATE(sizeof(struct acpi_device_info)); + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info)); if (!info) { return (AE_NO_MEMORY); } @@ -345,11 +341,11 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) } cleanup: - ACPI_MEM_FREE(info); + ACPI_FREE(info); if (cid_list) { - ACPI_MEM_FREE(cid_list); + ACPI_FREE(cid_list); } return (status); } -EXPORT_SYMBOL(acpi_get_object_info); +ACPI_EXPORT_SYMBOL(acpi_get_object_info) diff --git a/drivers/acpi/namespace/nsxfobj.c b/drivers/acpi/namespace/nsxfobj.c index a0332595677a..a163e1d3708d 100644 --- a/drivers/acpi/namespace/nsxfobj.c +++ b/drivers/acpi/namespace/nsxfobj.c @@ -42,8 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acnamesp.h> @@ -101,7 +99,7 @@ acpi_status acpi_get_type(acpi_handle handle, acpi_object_type * ret_type) return (status); } -EXPORT_SYMBOL(acpi_get_type); +ACPI_EXPORT_SYMBOL(acpi_get_type) /******************************************************************************* * @@ -116,7 +114,6 @@ EXPORT_SYMBOL(acpi_get_type); * Handle. * ******************************************************************************/ - acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle) { struct acpi_namespace_node *node; @@ -162,7 +159,7 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle) return (status); } -EXPORT_SYMBOL(acpi_get_parent); +ACPI_EXPORT_SYMBOL(acpi_get_parent) /******************************************************************************* * @@ -181,7 +178,6 @@ EXPORT_SYMBOL(acpi_get_parent); * Scope is returned. * ******************************************************************************/ - acpi_status acpi_get_next_object(acpi_object_type type, acpi_handle parent, @@ -206,6 +202,7 @@ acpi_get_next_object(acpi_object_type type, /* If null handle, use the parent */ if (!child) { + /* Start search at the beginning of the specified scope */ parent_node = acpi_ns_map_handle_to_node(parent); @@ -242,4 +239,4 @@ acpi_get_next_object(acpi_object_type type, return (status); } -EXPORT_SYMBOL(acpi_get_next_object); +ACPI_EXPORT_SYMBOL(acpi_get_next_object) diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 64b98e82feb7..13d6d5bdea26 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -36,12 +36,60 @@ #define _COMPONENT ACPI_NUMA ACPI_MODULE_NAME("numa") +static nodemask_t nodes_found_map = NODE_MASK_NONE; +#define PXM_INVAL -1 +#define NID_INVAL -1 + +/* maps to convert between proximity domain and logical node ID */ +int __cpuinitdata pxm_to_node_map[MAX_PXM_DOMAINS] + = { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL }; +int __cpuinitdata node_to_pxm_map[MAX_NUMNODES] + = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL }; + extern int __init acpi_table_parse_madt_family(enum acpi_table_id id, unsigned long madt_size, int entry_id, acpi_madt_entry_handler handler, unsigned int max_entries); +int __cpuinit pxm_to_node(int pxm) +{ + if (pxm < 0) + return NID_INVAL; + return pxm_to_node_map[pxm]; +} + +int __cpuinit node_to_pxm(int node) +{ + if (node < 0) + return PXM_INVAL; + return node_to_pxm_map[node]; +} + +int __cpuinit acpi_map_pxm_to_node(int pxm) +{ + int node = pxm_to_node_map[pxm]; + + if (node < 0){ + if (nodes_weight(nodes_found_map) >= MAX_NUMNODES) + return NID_INVAL; + node = first_unset_node(nodes_found_map); + pxm_to_node_map[pxm] = node; + node_to_pxm_map[node] = pxm; + node_set(node, nodes_found_map); + } + + return node; +} + +void __cpuinit acpi_unmap_pxm_to_node(int node) +{ + int pxm = node_to_pxm_map[node]; + pxm_to_node_map[pxm] = NID_INVAL; + node_to_pxm_map[node] = PXM_INVAL; + node_clear(node, nodes_found_map); +} + void __init acpi_table_print_srat_entry(acpi_table_entry_header * header) { @@ -206,5 +254,18 @@ int acpi_get_pxm(acpi_handle h) } while (ACPI_SUCCESS(status)); return -1; } - EXPORT_SYMBOL(acpi_get_pxm); + +int acpi_get_node(acpi_handle *handle) +{ + int pxm, node = -1; + + ACPI_FUNCTION_TRACE("acpi_get_node"); + + pxm = acpi_get_pxm(handle); + if (pxm >= 0) + node = acpi_map_pxm_to_node(pxm); + + return_VALUE(node); +} +EXPORT_SYMBOL(acpi_get_node); diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 13b5fd5854a8..1bb558adee66 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -37,6 +37,7 @@ #include <linux/delay.h> #include <linux/workqueue.h> #include <linux/nmi.h> +#include <linux/kthread.h> #include <acpi/acpi.h> #include <asm/io.h> #include <acpi/acpi_bus.h> @@ -600,23 +601,41 @@ static void acpi_os_execute_deferred(void *context) return_VOID; } -acpi_status -acpi_os_queue_for_execution(u32 priority, +static int acpi_os_execute_thread(void *context) +{ + struct acpi_os_dpc *dpc = (struct acpi_os_dpc *)context; + if (dpc) { + dpc->function(dpc->context); + kfree(dpc); + } + do_exit(0); +} + +/******************************************************************************* + * + * FUNCTION: acpi_os_execute + * + * PARAMETERS: Type - Type of the callback + * Function - Function to be executed + * Context - Function parameters + * + * RETURN: Status + * + * DESCRIPTION: Depending on type, either queues function for deferred execution or + * immediately executes function on a separate thread. + * + ******************************************************************************/ + +acpi_status acpi_os_execute(acpi_execute_type type, acpi_osd_exec_callback function, void *context) { acpi_status status = AE_OK; struct acpi_os_dpc *dpc; struct work_struct *task; - - ACPI_FUNCTION_TRACE("os_queue_for_execution"); - - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Scheduling function [%p(%p)] for deferred execution.\n", - function, context)); + struct task_struct *p; if (!function) - return_ACPI_STATUS(AE_BAD_PARAMETER); - + return AE_BAD_PARAMETER; /* * Allocate/initialize DPC structure. Note that this memory will be * freed by the callee. The kernel handles the tq_struct list in a @@ -627,30 +646,37 @@ acpi_os_queue_for_execution(u32 priority, * We can save time and code by allocating the DPC and tq_structs * from the same memory. */ - - dpc = - kmalloc(sizeof(struct acpi_os_dpc) + sizeof(struct work_struct), - GFP_ATOMIC); + if (type == OSL_NOTIFY_HANDLER) { + dpc = kmalloc(sizeof(struct acpi_os_dpc), GFP_KERNEL); + } else { + dpc = kmalloc(sizeof(struct acpi_os_dpc) + + sizeof(struct work_struct), GFP_ATOMIC); + } if (!dpc) - return_ACPI_STATUS(AE_NO_MEMORY); - + return AE_NO_MEMORY; dpc->function = function; dpc->context = context; - task = (void *)(dpc + 1); - INIT_WORK(task, acpi_os_execute_deferred, (void *)dpc); - - if (!queue_work(kacpid_wq, task)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Call to queue_work() failed.\n")); - kfree(dpc); - status = AE_ERROR; + if (type == OSL_NOTIFY_HANDLER) { + p = kthread_create(acpi_os_execute_thread, dpc, "kacpid_notify"); + if (!IS_ERR(p)) { + wake_up_process(p); + } else { + status = AE_NO_MEMORY; + kfree(dpc); + } + } else { + task = (void *)(dpc + 1); + INIT_WORK(task, acpi_os_execute_deferred, (void *)dpc); + if (!queue_work(kacpid_wq, task)) { + status = AE_ERROR; + kfree(dpc); + } } - - return_ACPI_STATUS(status); + return status; } -EXPORT_SYMBOL(acpi_os_queue_for_execution); +EXPORT_SYMBOL(acpi_os_execute); void acpi_os_wait_events_complete(void *context) { @@ -769,9 +795,6 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout) ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Waiting for semaphore[%p|%d|%d]\n", handle, units, timeout)); - if (in_atomic()) - timeout = 0; - switch (timeout) { /* * No Wait: @@ -896,14 +919,6 @@ u8 acpi_os_writable(void *ptr, acpi_size len) } #endif -u32 acpi_os_get_thread_id(void) -{ - if (!in_atomic()) - return current->pid; - - return 0; -} - acpi_status acpi_os_signal(u32 function, void *info) { switch (function) { @@ -1050,12 +1065,12 @@ void acpi_os_release_lock(acpi_handle handle, acpi_cpu_flags flags) * * FUNCTION: acpi_os_create_cache * - * PARAMETERS: CacheName - Ascii name for the cache - * ObjectSize - Size of each cached object - * MaxDepth - Maximum depth of the cache (in objects) - * ReturnCache - Where the new cache object is returned + * PARAMETERS: name - Ascii name for the cache + * size - Size of each cached object + * depth - Maximum depth of the cache (in objects) <ignored> + * cache - Where the new cache object is returned * - * RETURN: Status + * RETURN: status * * DESCRIPTION: Create a cache object * @@ -1065,7 +1080,10 @@ acpi_status acpi_os_create_cache(char *name, u16 size, u16 depth, acpi_cache_t ** cache) { *cache = kmem_cache_create(name, size, 0, 0, NULL, NULL); - return AE_OK; + if (cache == NULL) + return AE_ERROR; + else + return AE_OK; } /******************************************************************************* @@ -1134,16 +1152,63 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object) * * RETURN: Status * - * DESCRIPTION: Get an object from the specified cache. If cache is empty, - * the object is allocated. + * DESCRIPTION: Return a zero-filled object. * ******************************************************************************/ void *acpi_os_acquire_object(acpi_cache_t * cache) { - void *object = kmem_cache_alloc(cache, GFP_KERNEL); + void *object = kmem_cache_zalloc(cache, GFP_KERNEL); WARN_ON(!object); return object; } +/****************************************************************************** + * + * FUNCTION: acpi_os_validate_interface + * + * PARAMETERS: interface - Requested interface to be validated + * + * RETURN: AE_OK if interface is supported, AE_SUPPORT otherwise + * + * DESCRIPTION: Match an interface string to the interfaces supported by the + * host. Strings originate from an AML call to the _OSI method. + * + *****************************************************************************/ + +acpi_status +acpi_os_validate_interface (char *interface) +{ + + return AE_SUPPORT; +} + + +/****************************************************************************** + * + * FUNCTION: acpi_os_validate_address + * + * PARAMETERS: space_id - ACPI space ID + * address - Physical address + * length - Address length + * + * RETURN: AE_OK if address/length is valid for the space_id. Otherwise, + * should return AE_AML_ILLEGAL_ADDRESS. + * + * DESCRIPTION: Validate a system address via the host OS. Used to validate + * the addresses accessed by AML operation regions. + * + *****************************************************************************/ + +acpi_status +acpi_os_validate_address ( + u8 space_id, + acpi_physical_address address, + acpi_size length) +{ + + return AE_OK; +} + + #endif diff --git a/drivers/acpi/parser/psargs.c b/drivers/acpi/parser/psargs.c index de573be52718..bf88e076c3e9 100644 --- a/drivers/acpi/parser/psargs.c +++ b/drivers/acpi/parser/psargs.c @@ -79,7 +79,7 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state) acpi_native_uint byte_count; u8 byte_zero_mask = 0x3F; /* Default [0:5] */ - ACPI_FUNCTION_TRACE("ps_get_next_package_length"); + ACPI_FUNCTION_TRACE(ps_get_next_package_length); /* * Byte 0 bits [6:7] contain the number of additional bytes @@ -128,7 +128,7 @@ u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state) u8 *start = parser_state->aml; u32 package_length; - ACPI_FUNCTION_TRACE("ps_get_next_package_end"); + ACPI_FUNCTION_TRACE(ps_get_next_package_end); /* Function below updates parser_state->Aml */ @@ -157,7 +157,7 @@ char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state) u8 *start = parser_state->aml; u8 *end = parser_state->aml; - ACPI_FUNCTION_TRACE("ps_get_next_namestring"); + ACPI_FUNCTION_TRACE(ps_get_next_namestring); /* Point past any namestring prefix characters (backslash or carat) */ @@ -237,7 +237,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, struct acpi_namespace_node *node; union acpi_generic_state scope_info; - ACPI_FUNCTION_TRACE("ps_get_next_namepath"); + ACPI_FUNCTION_TRACE(ps_get_next_namepath); path = acpi_ps_get_next_namestring(parser_state); acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP); @@ -275,6 +275,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, */ if (ACPI_SUCCESS(status) && possible_method_call && (node->type == ACPI_TYPE_METHOD)) { + /* This name is actually a control method invocation */ method_desc = acpi_ns_get_attached_object(node); @@ -319,6 +320,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, * some not_found cases are allowed */ if (status == AE_NOT_FOUND) { + /* 1) not_found is ok during load pass 1/2 (allow forward references) */ if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) != @@ -354,6 +356,7 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == ACPI_PARSE_EXECUTE) { + /* Report a control method execution error */ status = acpi_ds_method_error(status, walk_state); @@ -388,7 +391,7 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, u16 opcode; u8 *aml = parser_state->aml; - ACPI_FUNCTION_TRACE_U32("ps_get_next_simple_arg", arg_type); + ACPI_FUNCTION_TRACE_U32(ps_get_next_simple_arg, arg_type); switch (arg_type) { case ARGP_BYTEDATA: @@ -453,7 +456,7 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, default: - ACPI_ERROR((AE_INFO, "Invalid arg_type %X", arg_type)); + ACPI_ERROR((AE_INFO, "Invalid ArgType %X", arg_type)); return_VOID; } @@ -484,7 +487,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state u16 opcode; u32 name; - ACPI_FUNCTION_TRACE("ps_get_next_field"); + ACPI_FUNCTION_TRACE(ps_get_next_field); /* Determine field type */ @@ -590,7 +593,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, u32 subop; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_PTR("ps_get_next_arg", parser_state); + ACPI_FUNCTION_TRACE_PTR(ps_get_next_arg, parser_state); switch (arg_type) { case ARGP_BYTEDATA: @@ -620,6 +623,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, case ARGP_FIELDLIST: if (parser_state->aml < parser_state->pkg_end) { + /* Non-empty list */ while (parser_state->aml < parser_state->pkg_end) { @@ -645,6 +649,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, case ARGP_BYTELIST: if (parser_state->aml < parser_state->pkg_end) { + /* Non-empty list */ arg = acpi_ps_alloc_op(AML_INT_BYTELIST_OP); @@ -673,6 +678,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, if (subop == 0 || acpi_ps_is_leading_char(subop) || acpi_ps_is_prefix_char(subop)) { + /* null_name or name_string */ arg = acpi_ps_alloc_op(AML_INT_NAMEPATH_OP); @@ -703,6 +709,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, case ARGP_OBJLIST: if (parser_state->aml < parser_state->pkg_end) { + /* Non-empty list of variable arguments, nothing returned */ walk_state->arg_count = ACPI_VAR_ARGS; @@ -711,7 +718,7 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state, default: - ACPI_ERROR((AE_INFO, "Invalid arg_type: %X", arg_type)); + ACPI_ERROR((AE_INFO, "Invalid ArgType: %X", arg_type)); status = AE_AML_OPERAND_TYPE; break; } diff --git a/drivers/acpi/parser/psloop.c b/drivers/acpi/parser/psloop.c index 00b072e15d19..e1541db3753a 100644 --- a/drivers/acpi/parser/psloop.c +++ b/drivers/acpi/parser/psloop.c @@ -83,7 +83,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) struct acpi_parse_state *parser_state; u8 *aml_op_start = NULL; - ACPI_FUNCTION_TRACE_PTR("ps_parse_loop", walk_state); + ACPI_FUNCTION_TRACE_PTR(ps_parse_loop, walk_state); if (walk_state->descending_callback == NULL) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -95,6 +95,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) #if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY)) if (walk_state->walk_type & ACPI_WALK_METHOD_RESTART) { + /* We are restarting a preempted control method */ if (acpi_ps_has_completed_scope(parser_state)) { @@ -128,7 +129,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) } ACPI_EXCEPTION((AE_INFO, status, - "get_predicate Failed")); + "GetPredicate Failed")); return_ACPI_STATUS(status); } @@ -143,6 +144,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Popped scope, Op=%p\n", op)); } else if (walk_state->prev_op) { + /* We were in the middle of an op */ op = walk_state->prev_op; @@ -156,6 +158,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) while ((parser_state->aml < parser_state->aml_end) || (op)) { aml_op_start = parser_state->aml; if (!op) { + /* Get the next opcode from the AML stream */ walk_state->aml_offset = @@ -213,6 +216,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) /* Create Op structure and append to parent's argument list */ if (walk_state->op_info->flags & AML_NAMED) { + /* Allocate a new pre_op if necessary */ if (!pre_op) { @@ -371,7 +375,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) if (walk_state->op_info) { ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Opcode %4.4X [%s] Op %p Aml %p aml_offset %5.5X\n", + "Opcode %4.4X [%s] Op %p Aml %p AmlOffset %5.5X\n", (u32) op->common.aml_opcode, walk_state->op_info->name, op, parser_state->aml, @@ -388,6 +392,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) /* Are there any arguments that must be processed? */ if (walk_state->arg_types) { + /* Get arguments */ switch (op->common.aml_opcode) { @@ -742,7 +747,19 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) if (ACPI_FAILURE(status2)) { return_ACPI_STATUS(status2); } + + status2 = + acpi_ds_result_stack_pop + (walk_state); + if (ACPI_FAILURE(status2)) { + return_ACPI_STATUS(status2); + } + + acpi_ut_delete_generic_state + (acpi_ut_pop_generic_state + (&walk_state->control_state)); } + acpi_ps_pop_scope(parser_state, &op, &walk_state->arg_types, &walk_state->arg_count); @@ -762,6 +779,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) return_ACPI_STATUS(status2); } } + acpi_ps_pop_scope(parser_state, &op, &walk_state->arg_types, &walk_state->arg_count); @@ -853,6 +871,7 @@ acpi_status acpi_ps_parse_loop(struct acpi_walk_state *walk_state) } else if (ACPI_FAILURE(status)) { + /* First error is most important */ (void) diff --git a/drivers/acpi/parser/psopcode.c b/drivers/acpi/parser/psopcode.c index 11d6351ab8b2..4bd25e32769f 100644 --- a/drivers/acpi/parser/psopcode.c +++ b/drivers/acpi/parser/psopcode.c @@ -725,12 +725,13 @@ static const u8 acpi_gbl_long_op_index[NUM_EXTENDED_OPCODE] = { const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) { - ACPI_FUNCTION_NAME("ps_get_opcode_info"); + ACPI_FUNCTION_NAME(ps_get_opcode_info); /* * Detect normal 8-bit opcode or extended 16-bit opcode */ if (!(opcode & 0xFF00)) { + /* Simple (8-bit) opcode: 0-255, can't index beyond table */ return (&acpi_gbl_aml_op_info @@ -739,6 +740,7 @@ const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) if (((opcode & 0xFF00) == AML_EXTENDED_OPCODE) && (((u8) opcode) <= MAX_EXTENDED_OPCODE)) { + /* Valid extended (16-bit) opcode */ return (&acpi_gbl_aml_op_info @@ -779,7 +781,7 @@ char *acpi_ps_get_opcode_name(u16 opcode) return (op->name); #else - return ("AE_NOT_CONFIGURED"); + return ("OpcodeName unavailable"); #endif } diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c index a9f3229f4106..7ee2f2e77525 100644 --- a/drivers/acpi/parser/psparse.c +++ b/drivers/acpi/parser/psparse.c @@ -106,6 +106,7 @@ u16 acpi_ps_peek_opcode(struct acpi_parse_state * parser_state) opcode = (u16) ACPI_GET8(aml); if (opcode == AML_EXTENDED_OP_PREFIX) { + /* Extended opcode, get the second opcode byte */ aml++; @@ -137,7 +138,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, const struct acpi_opcode_info *parent_info; union acpi_parse_object *replacement_op = NULL; - ACPI_FUNCTION_TRACE_PTR("ps_complete_this_op", op); + ACPI_FUNCTION_TRACE_PTR(ps_complete_this_op, op); /* Check for null Op, can happen if AML code is corrupt */ @@ -158,6 +159,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, if (op->common.parent) { prev = op->common.parent->common.value.arg; if (!prev) { + /* Nothing more to do */ goto cleanup; @@ -245,6 +247,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, /* We must unlink this op from the parent tree */ if (prev == op) { + /* This op is the first in the list */ if (replacement_op) { @@ -265,6 +268,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state, else while (prev) { + /* Traverse all siblings in the parent's argument list */ next = prev->common.next; @@ -329,7 +333,7 @@ acpi_ps_next_parse_state(struct acpi_walk_state *walk_state, struct acpi_parse_state *parser_state = &walk_state->parser_state; acpi_status status = AE_CTRL_PENDING; - ACPI_FUNCTION_TRACE_PTR("ps_next_parse_state", op); + ACPI_FUNCTION_TRACE_PTR(ps_next_parse_state, op); switch (callback_status) { case AE_CTRL_TERMINATE: @@ -449,10 +453,10 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) struct acpi_thread_state *prev_walk_list = acpi_gbl_current_walk_list; struct acpi_walk_state *previous_walk_state; - ACPI_FUNCTION_TRACE("ps_parse_aml"); + ACPI_FUNCTION_TRACE(ps_parse_aml); ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Entered with walk_state=%p Aml=%p size=%X\n", + "Entered with WalkState=%p Aml=%p size=%X\n", walk_state, walk_state->parser_state.aml, walk_state->parser_state.aml_size)); @@ -460,6 +464,7 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) thread = acpi_ut_create_thread_state(); if (!thread) { + acpi_ds_delete_walk_state(walk_state); return_ACPI_STATUS(AE_NO_MEMORY); } @@ -510,6 +515,7 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) } else if (status == AE_CTRL_TERMINATE) { status = AE_OK; } else if ((status != AE_OK) && (walk_state->method_desc)) { + /* Either the method parse or actual execution failed */ ACPI_ERROR_METHOD("Method parse/execution failed", @@ -550,20 +556,9 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) */ if (((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == ACPI_PARSE_EXECUTE) || (ACPI_FAILURE(status))) { - if (walk_state->method_desc) { - /* Decrement the thread count on the method parse tree */ - - if (walk_state->method_desc->method. - thread_count) { - walk_state->method_desc->method. - thread_count--; - } else { - ACPI_ERROR((AE_INFO, - "Invalid zero thread count in method")); - } - } - - acpi_ds_terminate_control_method(walk_state); + acpi_ds_terminate_control_method(walk_state-> + method_desc, + walk_state); } /* Delete this walk state and all linked control states */ @@ -572,7 +567,7 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) previous_walk_state = walk_state; ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "return_value=%p, implicit_value=%p State=%p\n", + "ReturnValue=%p, ImplicitValue=%p State=%p\n", walk_state->return_desc, walk_state->implicit_return_obj, walk_state)); @@ -633,12 +628,14 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) } } else { if (previous_walk_state->return_desc) { + /* Caller doesn't want it, must delete it */ acpi_ut_remove_reference(previous_walk_state-> return_desc); } if (previous_walk_state->implicit_return_obj) { + /* Caller doesn't want it, must delete it */ acpi_ut_remove_reference(previous_walk_state-> diff --git a/drivers/acpi/parser/psscope.c b/drivers/acpi/parser/psscope.c index bc6047caccd9..a3e0314de24d 100644 --- a/drivers/acpi/parser/psscope.c +++ b/drivers/acpi/parser/psscope.c @@ -106,14 +106,14 @@ acpi_ps_init_scope(struct acpi_parse_state * parser_state, { union acpi_generic_state *scope; - ACPI_FUNCTION_TRACE_PTR("ps_init_scope", root_op); + ACPI_FUNCTION_TRACE_PTR(ps_init_scope, root_op); scope = acpi_ut_create_generic_state(); if (!scope) { return_ACPI_STATUS(AE_NO_MEMORY); } - scope->common.data_type = ACPI_DESC_TYPE_STATE_RPSCOPE; + scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_RPSCOPE; scope->parse_scope.op = root_op; scope->parse_scope.arg_count = ACPI_VAR_ARGS; scope->parse_scope.arg_end = parser_state->aml_end; @@ -147,14 +147,14 @@ acpi_ps_push_scope(struct acpi_parse_state *parser_state, { union acpi_generic_state *scope; - ACPI_FUNCTION_TRACE_PTR("ps_push_scope", op); + ACPI_FUNCTION_TRACE_PTR(ps_push_scope, op); scope = acpi_ut_create_generic_state(); if (!scope) { return_ACPI_STATUS(AE_NO_MEMORY); } - scope->common.data_type = ACPI_DESC_TYPE_STATE_PSCOPE; + scope->common.descriptor_type = ACPI_DESC_TYPE_STATE_PSCOPE; scope->parse_scope.op = op; scope->parse_scope.arg_list = remaining_args; scope->parse_scope.arg_count = arg_count; @@ -165,6 +165,7 @@ acpi_ps_push_scope(struct acpi_parse_state *parser_state, acpi_ut_push_generic_state(&parser_state->scope, scope); if (arg_count == ACPI_VAR_ARGS) { + /* Multiple arguments */ scope->parse_scope.arg_end = parser_state->pkg_end; @@ -199,14 +200,14 @@ acpi_ps_pop_scope(struct acpi_parse_state *parser_state, { union acpi_generic_state *scope = parser_state->scope; - ACPI_FUNCTION_TRACE("ps_pop_scope"); + ACPI_FUNCTION_TRACE(ps_pop_scope); /* Only pop the scope if there is in fact a next scope */ if (scope->common.next) { scope = acpi_ut_pop_generic_state(&parser_state->scope); - /* return to parsing previous op */ + /* Return to parsing previous op */ *op = scope->parse_scope.op; *arg_list = scope->parse_scope.arg_list; @@ -217,7 +218,7 @@ acpi_ps_pop_scope(struct acpi_parse_state *parser_state, acpi_ut_delete_generic_state(scope); } else { - /* empty parse stack, prepare to fetch next opcode */ + /* Empty parse stack, prepare to fetch next opcode */ *op = NULL; *arg_list = 0; @@ -246,7 +247,7 @@ void acpi_ps_cleanup_scope(struct acpi_parse_state *parser_state) { union acpi_generic_state *scope; - ACPI_FUNCTION_TRACE_PTR("ps_cleanup_scope", parser_state); + ACPI_FUNCTION_TRACE_PTR(ps_cleanup_scope, parser_state); if (!parser_state) { return_VOID; diff --git a/drivers/acpi/parser/pstree.c b/drivers/acpi/parser/pstree.c index dd6f16726fc4..0015717ef096 100644 --- a/drivers/acpi/parser/pstree.c +++ b/drivers/acpi/parser/pstree.c @@ -77,6 +77,7 @@ union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn) op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); if (op_info->class == AML_CLASS_UNKNOWN) { + /* Invalid opcode or ASCII character */ return (NULL); @@ -85,6 +86,7 @@ union acpi_parse_object *acpi_ps_get_arg(union acpi_parse_object *op, u32 argn) /* Check if this opcode requires argument sub-objects */ if (!(op_info->flags & AML_HAS_ARGS)) { + /* Has no linked argument objects */ return (NULL); @@ -130,6 +132,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) op_info = acpi_ps_get_opcode_info(op->common.aml_opcode); if (op_info->class == AML_CLASS_UNKNOWN) { + /* Invalid opcode */ ACPI_ERROR((AE_INFO, "Invalid AML Opcode: 0x%2.2X", @@ -140,6 +143,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) /* Check if this opcode requires argument sub-objects */ if (!(op_info->flags & AML_HAS_ARGS)) { + /* Has no linked argument objects */ return; @@ -148,6 +152,7 @@ acpi_ps_append_arg(union acpi_parse_object *op, union acpi_parse_object *arg) /* Append the argument to the linked argument list */ if (op->common.value.arg) { + /* Append to existing argument list */ prev_arg = op->common.value.arg; @@ -222,12 +227,14 @@ union acpi_parse_object *acpi_ps_get_depth_next(union acpi_parse_object *origin, } if (arg == origin) { + /* Reached parent of origin, end search */ return (NULL); } if (parent->common.next) { + /* Found sibling of parent */ return (parent->common.next); @@ -299,5 +306,4 @@ union acpi_parse_object *acpi_ps_get_child(union acpi_parse_object *op) return (child); } #endif - #endif /* ACPI_FUTURE_USAGE */ diff --git a/drivers/acpi/parser/psutils.c b/drivers/acpi/parser/psutils.c index 3e07cb9cb748..182474ae8ce9 100644 --- a/drivers/acpi/parser/psutils.c +++ b/drivers/acpi/parser/psutils.c @@ -89,7 +89,7 @@ void acpi_ps_init_op(union acpi_parse_object *op, u16 opcode) { ACPI_FUNCTION_ENTRY(); - op->common.data_type = ACPI_DESC_TYPE_PARSER; + op->common.descriptor_type = ACPI_DESC_TYPE_PARSER; op->common.aml_opcode = opcode; ACPI_DISASM_ONLY_MEMBERS(ACPI_STRNCPY(op->common.aml_op_name, @@ -135,6 +135,7 @@ union acpi_parse_object *acpi_ps_alloc_op(u16 opcode) /* Allocate the minimum required size object */ if (flags == ACPI_PARSEOP_GENERIC) { + /* The generic op (default) is by far the most common (16 to 1) */ op = acpi_os_acquire_object(acpi_gbl_ps_node_cache); @@ -171,7 +172,7 @@ union acpi_parse_object *acpi_ps_alloc_op(u16 opcode) void acpi_ps_free_op(union acpi_parse_object *op) { - ACPI_FUNCTION_NAME("ps_free_op"); + ACPI_FUNCTION_NAME(ps_free_op); if (op->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Free retval op: %p\n", diff --git a/drivers/acpi/parser/pswalk.c b/drivers/acpi/parser/pswalk.c index 06f05bfd7612..a84a547a0f1b 100644 --- a/drivers/acpi/parser/pswalk.c +++ b/drivers/acpi/parser/pswalk.c @@ -64,18 +64,21 @@ void acpi_ps_delete_parse_tree(union acpi_parse_object *subtree_root) union acpi_parse_object *next = NULL; union acpi_parse_object *parent = NULL; - ACPI_FUNCTION_TRACE_PTR("ps_delete_parse_tree", subtree_root); + ACPI_FUNCTION_TRACE_PTR(ps_delete_parse_tree, subtree_root); /* Visit all nodes in the subtree */ while (op) { + /* Check if we are not ascending */ if (op != parent) { + /* Look for an argument or child of the current op */ next = acpi_ps_get_arg(op, 0); if (next) { + /* Still going downward in tree (Op is not completed yet) */ op = next; diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c index 2dd48cbb7c02..5d996c1140af 100644 --- a/drivers/acpi/parser/psxface.c +++ b/drivers/acpi/parser/psxface.c @@ -50,14 +50,14 @@ ACPI_MODULE_NAME("psxface") /* Local Prototypes */ -static void acpi_ps_start_trace(struct acpi_parameter_info *info); +static void acpi_ps_start_trace(struct acpi_evaluate_info *info); -static void acpi_ps_stop_trace(struct acpi_parameter_info *info); +static void acpi_ps_stop_trace(struct acpi_evaluate_info *info); -static acpi_status acpi_ps_execute_pass(struct acpi_parameter_info *info); +static acpi_status acpi_ps_execute_pass(struct acpi_evaluate_info *info); static void -acpi_ps_update_parameter_list(struct acpi_parameter_info *info, u16 action); +acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action); /******************************************************************************* * @@ -113,7 +113,7 @@ acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags) * ******************************************************************************/ -static void acpi_ps_start_trace(struct acpi_parameter_info *info) +static void acpi_ps_start_trace(struct acpi_evaluate_info *info) { acpi_status status; @@ -125,7 +125,7 @@ static void acpi_ps_start_trace(struct acpi_parameter_info *info) } if ((!acpi_gbl_trace_method_name) || - (acpi_gbl_trace_method_name != info->node->name.integer)) { + (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) { goto exit; } @@ -158,7 +158,7 @@ static void acpi_ps_start_trace(struct acpi_parameter_info *info) * ******************************************************************************/ -static void acpi_ps_stop_trace(struct acpi_parameter_info *info) +static void acpi_ps_stop_trace(struct acpi_evaluate_info *info) { acpi_status status; @@ -170,7 +170,7 @@ static void acpi_ps_stop_trace(struct acpi_parameter_info *info) } if ((!acpi_gbl_trace_method_name) || - (acpi_gbl_trace_method_name != info->node->name.integer)) { + (acpi_gbl_trace_method_name != info->resolved_node->name.integer)) { goto exit; } @@ -212,22 +212,23 @@ static void acpi_ps_stop_trace(struct acpi_parameter_info *info) * ******************************************************************************/ -acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info) +acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) { acpi_status status; - ACPI_FUNCTION_TRACE("ps_execute_method"); + ACPI_FUNCTION_TRACE(ps_execute_method); /* Validate the Info and method Node */ - if (!info || !info->node) { + if (!info || !info->resolved_node) { return_ACPI_STATUS(AE_NULL_ENTRY); } /* Init for new method, wait on concurrency semaphore */ status = - acpi_ds_begin_method_execution(info->node, info->obj_desc, NULL); + acpi_ds_begin_method_execution(info->resolved_node, info->obj_desc, + NULL); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -248,7 +249,7 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info) */ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Begin Method Parse **** Entry=%p obj=%p\n", - info->node, info->obj_desc)); + info->resolved_node, info->obj_desc)); info->pass_number = 1; status = acpi_ps_execute_pass(info); @@ -261,7 +262,7 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info) */ ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "**** Begin Method Execution **** Entry=%p obj=%p\n", - info->node, info->obj_desc)); + info->resolved_node, info->obj_desc)); info->pass_number = 3; status = acpi_ps_execute_pass(info); @@ -286,8 +287,7 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info) * a control exception code */ if (info->return_object) { - ACPI_DEBUG_PRINT((ACPI_DB_PARSE, - "Method returned obj_desc=%p\n", + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Method returned ObjDesc=%p\n", info->return_object)); ACPI_DUMP_STACK_ENTRY(info->return_object); @@ -301,7 +301,7 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info) * * FUNCTION: acpi_ps_update_parameter_list * - * PARAMETERS: Info - See struct acpi_parameter_info + * PARAMETERS: Info - See struct acpi_evaluate_info * (Used: parameter_type and Parameters) * Action - Add or Remove reference * @@ -312,14 +312,16 @@ acpi_status acpi_ps_execute_method(struct acpi_parameter_info *info) ******************************************************************************/ static void -acpi_ps_update_parameter_list(struct acpi_parameter_info *info, u16 action) +acpi_ps_update_parameter_list(struct acpi_evaluate_info *info, u16 action) { acpi_native_uint i; if ((info->parameter_type == ACPI_PARAM_ARGS) && (info->parameters)) { + /* Update reference count for each parameter */ for (i = 0; info->parameters[i]; i++) { + /* Ignore errors, just do them all */ (void)acpi_ut_update_object_reference(info-> @@ -333,7 +335,7 @@ acpi_ps_update_parameter_list(struct acpi_parameter_info *info, u16 action) * * FUNCTION: acpi_ps_execute_pass * - * PARAMETERS: Info - See struct acpi_parameter_info + * PARAMETERS: Info - See struct acpi_evaluate_info * (Used: pass_number, Node, and obj_desc) * * RETURN: Status @@ -342,13 +344,13 @@ acpi_ps_update_parameter_list(struct acpi_parameter_info *info, u16 action) * ******************************************************************************/ -static acpi_status acpi_ps_execute_pass(struct acpi_parameter_info *info) +static acpi_status acpi_ps_execute_pass(struct acpi_evaluate_info *info) { acpi_status status; union acpi_parse_object *op; struct acpi_walk_state *walk_state; - ACPI_FUNCTION_TRACE("ps_execute_pass"); + ACPI_FUNCTION_TRACE(ps_execute_pass); /* Create and init a Root Node */ @@ -367,7 +369,7 @@ static acpi_status acpi_ps_execute_pass(struct acpi_parameter_info *info) goto cleanup; } - status = acpi_ds_init_aml_walk(walk_state, op, info->node, + status = acpi_ds_init_aml_walk(walk_state, op, info->resolved_node, info->obj_desc->method.aml_start, info->obj_desc->method.aml_length, info->pass_number == 1 ? NULL : info, diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 8920e8c6e246..228bdb626502 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -38,6 +38,7 @@ #include <linux/spinlock.h> #include <linux/pm.h> #include <linux/pci.h> +#include <linux/mutex.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -91,7 +92,7 @@ static struct { int count; struct list_head entries; } acpi_link; -DECLARE_MUTEX(acpi_link_lock); +DEFINE_MUTEX(acpi_link_lock); /* -------------------------------------------------------------------------- PCI Link Device Management @@ -641,19 +642,19 @@ acpi_pci_link_allocate_irq(acpi_handle handle, return_VALUE(-1); } - down(&acpi_link_lock); + mutex_lock(&acpi_link_lock); if (acpi_pci_link_allocate(link)) { - up(&acpi_link_lock); + mutex_unlock(&acpi_link_lock); return_VALUE(-1); } if (!link->irq.active) { - up(&acpi_link_lock); + mutex_unlock(&acpi_link_lock); ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link active IRQ is 0!\n")); return_VALUE(-1); } link->refcnt++; - up(&acpi_link_lock); + mutex_unlock(&acpi_link_lock); if (triggering) *triggering = link->irq.triggering; @@ -691,9 +692,9 @@ int acpi_pci_link_free_irq(acpi_handle handle) return_VALUE(-1); } - down(&acpi_link_lock); + mutex_lock(&acpi_link_lock); if (!link->irq.initialized) { - up(&acpi_link_lock); + mutex_unlock(&acpi_link_lock); ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Link isn't initialized\n")); return_VALUE(-1); } @@ -716,7 +717,7 @@ int acpi_pci_link_free_irq(acpi_handle handle) if (link->refcnt == 0) { acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL); } - up(&acpi_link_lock); + mutex_unlock(&acpi_link_lock); return_VALUE(link->irq.active); } @@ -747,7 +748,7 @@ static int acpi_pci_link_add(struct acpi_device *device) strcpy(acpi_device_class(device), ACPI_PCI_LINK_CLASS); acpi_driver_data(device) = link; - down(&acpi_link_lock); + mutex_lock(&acpi_link_lock); result = acpi_pci_link_get_possible(link); if (result) goto end; @@ -782,7 +783,7 @@ static int acpi_pci_link_add(struct acpi_device *device) end: /* disable all links -- to be activated on use */ acpi_ut_evaluate_object(link->handle, "_DIS", 0, NULL); - up(&acpi_link_lock); + mutex_unlock(&acpi_link_lock); if (result) kfree(link); @@ -840,9 +841,9 @@ static int acpi_pci_link_remove(struct acpi_device *device, int type) link = (struct acpi_pci_link *)acpi_driver_data(device); - down(&acpi_link_lock); + mutex_lock(&acpi_link_lock); list_del(&link->node); - up(&acpi_link_lock); + mutex_unlock(&acpi_link_lock); kfree(link); diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 713b763884a9..decaebb4cbe9 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -110,7 +110,7 @@ static struct file_operations acpi_processor_info_fops = { }; struct acpi_processor *processors[NR_CPUS]; -struct acpi_processor_errata errata; +struct acpi_processor_errata errata __read_mostly; /* -------------------------------------------------------------------------- Errata Handling @@ -388,7 +388,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device) /* Use the acpiid in MADT to map cpus in case of SMP */ #ifndef CONFIG_SMP -#define convert_acpiid_to_cpu(acpi_id) (0xff) +#define convert_acpiid_to_cpu(acpi_id) (-1) #else #ifdef CONFIG_IA64 @@ -401,7 +401,7 @@ static int acpi_processor_remove_fs(struct acpi_device *device) #define ARCH_BAD_APICID (0xff) #endif -static u8 convert_acpiid_to_cpu(u8 acpi_id) +static int convert_acpiid_to_cpu(u8 acpi_id) { u16 apic_id; int i; @@ -427,7 +427,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr) acpi_status status = 0; union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; - u8 cpu_index; + int cpu_index; static int cpu0_initialized; ACPI_FUNCTION_TRACE("acpi_processor_get_info"); @@ -473,7 +473,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr) cpu_index = convert_acpiid_to_cpu(pr->acpi_id); /* Handle UP system running SMP kernel, with no LAPIC in MADT */ - if (!cpu0_initialized && (cpu_index == 0xff) && + if (!cpu0_initialized && (cpu_index == -1) && (num_online_cpus() == 1)) { cpu_index = 0; } @@ -487,7 +487,7 @@ static int acpi_processor_get_info(struct acpi_processor *pr) * less than the max # of CPUs. They should be ignored _iff * they are physically not present. */ - if (cpu_index >= NR_CPUS) { + if (cpu_index == -1) { if (ACPI_FAILURE (acpi_processor_hotadd_init(pr->handle, &pr->id))) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, @@ -558,8 +558,8 @@ static int acpi_processor_start(struct acpi_device *device) */ if (processor_device_array[pr->id] != NULL && processor_device_array[pr->id] != (void *)device) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "BIOS reporting wrong ACPI id" - "for the processor\n")); + printk(KERN_WARNING "BIOS reported wrong ACPI id" + "for the processor\n"); return_VALUE(-ENODEV); } processor_device_array[pr->id] = (void *)device; diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 80fa43471f48..8a74bf3efd8e 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -54,10 +54,10 @@ ACPI_MODULE_NAME("acpi_processor") #define US_TO_PM_TIMER_TICKS(t) ((t * (PM_TIMER_FREQUENCY/1000)) / 1000) #define C2_OVERHEAD 4 /* 1us (3.579 ticks per us) */ #define C3_OVERHEAD 4 /* 1us (3.579 ticks per us) */ -static void (*pm_idle_save) (void); +static void (*pm_idle_save) (void) __read_mostly; module_param(max_cstate, uint, 0644); -static unsigned int nocst = 0; +static unsigned int nocst __read_mostly; module_param(nocst, uint, 0000); /* @@ -67,7 +67,7 @@ module_param(nocst, uint, 0000); * 100 HZ: 0x0000000F: 4 jiffies = 40ms * reduce history for more aggressive entry into C3 */ -static unsigned int bm_history = +static unsigned int bm_history __read_mostly = (HZ >= 800 ? 0xFFFFFFFF : ((1U << (HZ / 25)) - 1)); module_param(bm_history, uint, 0644); /* -------------------------------------------------------------------------- @@ -206,11 +206,11 @@ acpi_processor_power_activate(struct acpi_processor *pr, static void acpi_safe_halt(void) { - clear_thread_flag(TIF_POLLING_NRFLAG); + current_thread_info()->status &= ~TS_POLLING; smp_mb__after_clear_bit(); if (!need_resched()) safe_halt(); - set_thread_flag(TIF_POLLING_NRFLAG); + current_thread_info()->status |= TS_POLLING; } static atomic_t c3_cpu_count; @@ -330,10 +330,10 @@ static void acpi_processor_idle(void) * Invoke the current Cx state to put the processor to sleep. */ if (cx->type == ACPI_STATE_C2 || cx->type == ACPI_STATE_C3) { - clear_thread_flag(TIF_POLLING_NRFLAG); + current_thread_info()->status &= ~TS_POLLING; smp_mb__after_clear_bit(); if (need_resched()) { - set_thread_flag(TIF_POLLING_NRFLAG); + current_thread_info()->status |= TS_POLLING; local_irq_enable(); return; } @@ -369,9 +369,14 @@ static void acpi_processor_idle(void) t2 = inl(acpi_fadt.xpm_tmr_blk.address); /* Get end time (ticks) */ t2 = inl(acpi_fadt.xpm_tmr_blk.address); + +#ifdef CONFIG_GENERIC_TIME + /* TSC halts in C2, so notify users */ + mark_tsc_unstable(); +#endif /* Re-enable interrupts */ local_irq_enable(); - set_thread_flag(TIF_POLLING_NRFLAG); + current_thread_info()->status |= TS_POLLING; /* Compute time (ticks) that we were actually asleep */ sleep_ticks = ticks_elapsed(t1, t2) - cx->latency_ticks - C2_OVERHEAD; @@ -409,9 +414,13 @@ static void acpi_processor_idle(void) ACPI_MTX_DO_NOT_LOCK); } +#ifdef CONFIG_GENERIC_TIME + /* TSC halts in C3, so notify users */ + mark_tsc_unstable(); +#endif /* Re-enable interrupts */ local_irq_enable(); - set_thread_flag(TIF_POLLING_NRFLAG); + current_thread_info()->status |= TS_POLLING; /* Compute time (ticks) that we were actually asleep */ sleep_ticks = ticks_elapsed(t1, t2) - cx->latency_ticks - C3_OVERHEAD; @@ -1081,7 +1090,7 @@ int acpi_processor_power_init(struct acpi_processor *pr, struct acpi_device *device) { acpi_status status = 0; - static int first_run = 0; + static int first_run; struct proc_dir_entry *entry = NULL; unsigned int i; diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index f36db22ce1ae..41aaaba74b19 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -34,6 +34,7 @@ #ifdef CONFIG_X86_ACPI_CPUFREQ_PROC_INTF #include <linux/proc_fs.h> #include <linux/seq_file.h> +#include <linux/mutex.h> #include <asm/uaccess.h> #endif @@ -48,7 +49,7 @@ #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("acpi_processor") -static DECLARE_MUTEX(performance_sem); +static DEFINE_MUTEX(performance_mutex); /* * _PPC support is implemented as a CPUfreq policy notifier: @@ -72,7 +73,7 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb, struct acpi_processor *pr; unsigned int ppc = 0; - down(&performance_sem); + mutex_lock(&performance_mutex); if (event != CPUFREQ_INCOMPATIBLE) goto out; @@ -93,7 +94,7 @@ static int acpi_processor_ppc_notifier(struct notifier_block *nb, core_frequency * 1000); out: - up(&performance_sem); + mutex_unlock(&performance_mutex); return 0; } @@ -553,6 +554,230 @@ static void acpi_cpufreq_remove_file(struct acpi_processor *pr) } #endif /* CONFIG_X86_ACPI_CPUFREQ_PROC_INTF */ +static int acpi_processor_get_psd(struct acpi_processor *pr) +{ + int result = 0; + acpi_status status = AE_OK; + struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; + struct acpi_buffer format = {sizeof("NNNNN"), "NNNNN"}; + struct acpi_buffer state = {0, NULL}; + union acpi_object *psd = NULL; + struct acpi_psd_package *pdomain; + + status = acpi_evaluate_object(pr->handle, "_PSD", NULL, &buffer); + if (ACPI_FAILURE(status)) { + return -ENODEV; + } + + psd = (union acpi_object *) buffer.pointer; + if (!psd || (psd->type != ACPI_TYPE_PACKAGE)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n")); + result = -EFAULT; + goto end; + } + + if (psd->package.count != 1) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n")); + result = -EFAULT; + goto end; + } + + pdomain = &(pr->performance->domain_info); + + state.length = sizeof(struct acpi_psd_package); + state.pointer = pdomain; + + status = acpi_extract_package(&(psd->package.elements[0]), + &format, &state); + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _PSD data\n")); + result = -EFAULT; + goto end; + } + + if (pdomain->num_entries != ACPI_PSD_REV0_ENTRIES) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _PSD:num_entries\n")); + result = -EFAULT; + goto end; + } + + if (pdomain->revision != ACPI_PSD_REV0_REVISION) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unknown _PSD:revision\n")); + result = -EFAULT; + goto end; + } + +end: + acpi_os_free(buffer.pointer); + return result; +} + +int acpi_processor_preregister_performance( + struct acpi_processor_performance **performance) +{ + int count, count_target; + int retval = 0; + unsigned int i, j; + cpumask_t covered_cpus; + struct acpi_processor *pr; + struct acpi_psd_package *pdomain; + struct acpi_processor *match_pr; + struct acpi_psd_package *match_pdomain; + + mutex_lock(&performance_mutex); + + retval = 0; + + /* Call _PSD for all CPUs */ + for_each_possible_cpu(i) { + pr = processors[i]; + if (!pr) { + /* Look only at processors in ACPI namespace */ + continue; + } + + if (pr->performance) { + retval = -EBUSY; + continue; + } + + if (!performance || !performance[i]) { + retval = -EINVAL; + continue; + } + + pr->performance = performance[i]; + cpu_set(i, pr->performance->shared_cpu_map); + if (acpi_processor_get_psd(pr)) { + retval = -EINVAL; + continue; + } + } + if (retval) + goto err_ret; + + /* + * Now that we have _PSD data from all CPUs, lets setup P-state + * domain info. + */ + for_each_possible_cpu(i) { + pr = processors[i]; + if (!pr) + continue; + + /* Basic validity check for domain info */ + pdomain = &(pr->performance->domain_info); + if ((pdomain->revision != ACPI_PSD_REV0_REVISION) || + (pdomain->num_entries != ACPI_PSD_REV0_ENTRIES)) { + retval = -EINVAL; + goto err_ret; + } + if (pdomain->coord_type != DOMAIN_COORD_TYPE_SW_ALL && + pdomain->coord_type != DOMAIN_COORD_TYPE_SW_ANY && + pdomain->coord_type != DOMAIN_COORD_TYPE_HW_ALL) { + retval = -EINVAL; + goto err_ret; + } + } + + cpus_clear(covered_cpus); + for_each_possible_cpu(i) { + pr = processors[i]; + if (!pr) + continue; + + if (cpu_isset(i, covered_cpus)) + continue; + + pdomain = &(pr->performance->domain_info); + cpu_set(i, pr->performance->shared_cpu_map); + cpu_set(i, covered_cpus); + if (pdomain->num_processors <= 1) + continue; + + /* Validate the Domain info */ + count_target = pdomain->num_processors; + count = 1; + if (pdomain->coord_type == DOMAIN_COORD_TYPE_SW_ALL || + pdomain->coord_type == DOMAIN_COORD_TYPE_HW_ALL) { + pr->performance->shared_type = CPUFREQ_SHARED_TYPE_ALL; + } else if (pdomain->coord_type == DOMAIN_COORD_TYPE_SW_ANY) { + pr->performance->shared_type = CPUFREQ_SHARED_TYPE_ANY; + } + + for_each_possible_cpu(j) { + if (i == j) + continue; + + match_pr = processors[j]; + if (!match_pr) + continue; + + match_pdomain = &(match_pr->performance->domain_info); + if (match_pdomain->domain != pdomain->domain) + continue; + + /* Here i and j are in the same domain */ + + if (match_pdomain->num_processors != count_target) { + retval = -EINVAL; + goto err_ret; + } + + if (pdomain->coord_type != match_pdomain->coord_type) { + retval = -EINVAL; + goto err_ret; + } + + cpu_set(j, covered_cpus); + cpu_set(j, pr->performance->shared_cpu_map); + count++; + } + + for_each_possible_cpu(j) { + if (i == j) + continue; + + match_pr = processors[j]; + if (!match_pr) + continue; + + match_pdomain = &(match_pr->performance->domain_info); + if (match_pdomain->domain != pdomain->domain) + continue; + + match_pr->performance->shared_type = + pr->performance->shared_type; + match_pr->performance->shared_cpu_map = + pr->performance->shared_cpu_map; + } + } + +err_ret: + if (retval) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error while parsing _PSD domain information. Assuming no coordination\n")); + } + + for_each_possible_cpu(i) { + pr = processors[i]; + if (!pr || !pr->performance) + continue; + + /* Assume no coordination on any error parsing domain info */ + if (retval) { + cpus_clear(pr->performance->shared_cpu_map); + cpu_set(i, pr->performance->shared_cpu_map); + pr->performance->shared_type = CPUFREQ_SHARED_TYPE_ALL; + } + pr->performance = NULL; /* Will be set for real in register */ + } + + mutex_unlock(&performance_mutex); + return retval; +} +EXPORT_SYMBOL(acpi_processor_preregister_performance); + + int acpi_processor_register_performance(struct acpi_processor_performance *performance, unsigned int cpu) @@ -564,16 +789,16 @@ acpi_processor_register_performance(struct acpi_processor_performance if (!(acpi_processor_ppc_status & PPC_REGISTERED)) return_VALUE(-EINVAL); - down(&performance_sem); + mutex_lock(&performance_mutex); pr = processors[cpu]; if (!pr) { - up(&performance_sem); + mutex_unlock(&performance_mutex); return_VALUE(-ENODEV); } if (pr->performance) { - up(&performance_sem); + mutex_unlock(&performance_mutex); return_VALUE(-EBUSY); } @@ -583,13 +808,13 @@ acpi_processor_register_performance(struct acpi_processor_performance if (acpi_processor_get_performance_info(pr)) { pr->performance = NULL; - up(&performance_sem); + mutex_unlock(&performance_mutex); return_VALUE(-EIO); } acpi_cpufreq_add_file(pr); - up(&performance_sem); + mutex_unlock(&performance_mutex); return_VALUE(0); } @@ -603,11 +828,11 @@ acpi_processor_unregister_performance(struct acpi_processor_performance ACPI_FUNCTION_TRACE("acpi_processor_unregister_performance"); - down(&performance_sem); + mutex_lock(&performance_mutex); pr = processors[cpu]; if (!pr) { - up(&performance_sem); + mutex_unlock(&performance_mutex); return_VOID; } @@ -617,7 +842,7 @@ acpi_processor_unregister_performance(struct acpi_processor_performance acpi_cpufreq_remove_file(pr); - up(&performance_sem); + mutex_unlock(&performance_mutex); return_VOID; } diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c index 4038dbfa63a0..cf87b0230026 100644 --- a/drivers/acpi/resources/rscalc.c +++ b/drivers/acpi/resources/rscalc.c @@ -78,6 +78,7 @@ static u8 acpi_rs_count_set_bits(u16 bit_field) ACPI_FUNCTION_ENTRY(); for (bits_set = 0; bit_field; bits_set++) { + /* Zero the least significant bit that is set */ bit_field &= (bit_field - 1); @@ -154,15 +155,18 @@ acpi_rs_stream_option_length(u32 resource_length, * length, minus one byte for the resource_source_index itself. */ if (resource_length > minimum_aml_resource_length) { + /* Compute the length of the optional string */ string_length = resource_length - minimum_aml_resource_length - 1; } - /* Round up length to 32 bits for internal structure alignment */ - - return (ACPI_ROUND_UP_to_32_bITS(string_length)); + /* + * Round the length up to a multiple of the native word in order to + * guarantee that the entire resource descriptor is native word aligned + */ + return ((u32) ACPI_ROUND_UP_TO_NATIVE_WORD(string_length)); } /******************************************************************************* @@ -186,11 +190,12 @@ acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) acpi_size aml_size_needed = 0; acpi_rs_length total_size; - ACPI_FUNCTION_TRACE("rs_get_aml_length"); + ACPI_FUNCTION_TRACE(rs_get_aml_length); /* Traverse entire list of internal resource descriptors */ while (resource) { + /* Validate the descriptor type */ if (resource->type > ACPI_RESOURCE_TYPE_MAX) { @@ -214,6 +219,7 @@ acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) * is a Large Resource data type. */ if (resource->data.vendor.byte_length > 7) { + /* Base size of a Large resource descriptor */ total_size = @@ -332,20 +338,22 @@ acpi_rs_get_list_length(u8 * aml_buffer, acpi_status status; u8 *end_aml; u8 *buffer; - u32 buffer_size = 0; + u32 buffer_size; u16 temp16; u16 resource_length; u32 extra_struct_bytes; u8 resource_index; u8 minimum_aml_resource_length; - ACPI_FUNCTION_TRACE("rs_get_list_length"); + ACPI_FUNCTION_TRACE(rs_get_list_length); + *size_needed = 0; end_aml = aml_buffer + aml_buffer_length; /* Walk the list of AML resource descriptors */ while (aml_buffer < end_aml) { + /* Validate the Resource Type and Resource Length */ status = acpi_ut_validate_resource(aml_buffer, &resource_index); @@ -386,35 +394,28 @@ acpi_rs_get_list_length(u8 * aml_buffer, break; case ACPI_RESOURCE_NAME_VENDOR_SMALL: + case ACPI_RESOURCE_NAME_VENDOR_LARGE: /* * Vendor Resource: - * Ensure a 32-bit boundary for the structure + * Get the number of vendor data bytes */ - extra_struct_bytes = - ACPI_ROUND_UP_to_32_bITS(resource_length); + extra_struct_bytes = resource_length; break; case ACPI_RESOURCE_NAME_END_TAG: /* - * End Tag: This is the normal exit, add size of end_tag + * End Tag: + * This is the normal exit, add size of end_tag */ - *size_needed = buffer_size + ACPI_RS_SIZE_MIN; + *size_needed += ACPI_RS_SIZE_MIN; return_ACPI_STATUS(AE_OK); - case ACPI_RESOURCE_NAME_VENDOR_LARGE: - /* - * Vendor Resource: - * Add vendor data and ensure a 32-bit boundary for the structure - */ - extra_struct_bytes = - ACPI_ROUND_UP_to_32_bITS(resource_length); - break; - case ACPI_RESOURCE_NAME_ADDRESS32: case ACPI_RESOURCE_NAME_ADDRESS16: + case ACPI_RESOURCE_NAME_ADDRESS64: /* - * 32-Bit or 16-bit Address Resource: - * Add the size of any optional data (resource_source) + * Address Resource: + * Add the size of the optional resource_source */ extra_struct_bytes = acpi_rs_stream_option_length(resource_length, @@ -423,50 +424,46 @@ acpi_rs_get_list_length(u8 * aml_buffer, case ACPI_RESOURCE_NAME_EXTENDED_IRQ: /* - * Extended IRQ: - * Point past the interrupt_vector_flags to get the - * interrupt_table_length. + * Extended IRQ Resource: + * Using the interrupt_table_length, add 4 bytes for each additional + * interrupt. Note: at least one interrupt is required and is + * included in the minimum descriptor size (reason for the -1) */ - buffer++; + extra_struct_bytes = (buffer[1] - 1) * sizeof(u32); - extra_struct_bytes = - /* - * Add 4 bytes for each additional interrupt. Note: at - * least one interrupt is required and is included in - * the minimum descriptor size - */ - ((*buffer - 1) * sizeof(u32)) + - /* Add the size of any optional data (resource_source) */ + /* Add the size of the optional resource_source */ + + extra_struct_bytes += acpi_rs_stream_option_length(resource_length - extra_struct_bytes, minimum_aml_resource_length); break; - case ACPI_RESOURCE_NAME_ADDRESS64: - /* - * 64-Bit Address Resource: - * Add the size of any optional data (resource_source) - * Ensure a 64-bit boundary for the structure - */ - extra_struct_bytes = - ACPI_ROUND_UP_to_64_bITS - (acpi_rs_stream_option_length - (resource_length, minimum_aml_resource_length)); - break; - default: break; } - /* Update the required buffer size for the internal descriptor structs */ + /* + * Update the required buffer size for the internal descriptor structs + * + * Important: Round the size up for the appropriate alignment. This + * is a requirement on IA64. + */ + buffer_size = acpi_gbl_resource_struct_sizes[resource_index] + + extra_struct_bytes; + buffer_size = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size); - temp16 = (u16) (acpi_gbl_resource_struct_sizes[resource_index] + - extra_struct_bytes); - buffer_size += (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(temp16); + *size_needed += buffer_size; + + ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, + "Type %.2X, AmlLength %.2X InternalLength %.2X\n", + acpi_ut_get_resource_type(aml_buffer), + acpi_ut_get_descriptor_length(aml_buffer), + buffer_size)); /* - * Point to the next resource within the stream - * using the size of the header plus the length contained in the header + * Point to the next resource within the AML stream using the length + * contained in the resource descriptor header */ aml_buffer += acpi_ut_get_descriptor_length(aml_buffer); } @@ -506,7 +503,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, u8 name_found; u32 table_index; - ACPI_FUNCTION_TRACE("rs_get_pci_routing_table_length"); + ACPI_FUNCTION_TRACE(rs_get_pci_routing_table_length); number_of_elements = package_object->package.count; @@ -523,6 +520,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, top_object_list = package_object->package.elements; for (index = 0; index < number_of_elements; index++) { + /* Dereference the sub-package */ package_element = *top_object_list; @@ -581,7 +579,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, /* Round up the size since each element must be aligned */ - temp_size_needed = ACPI_ROUND_UP_to_64_bITS(temp_size_needed); + temp_size_needed = ACPI_ROUND_UP_TO_64BIT(temp_size_needed); /* Point to the next union acpi_operand_object */ @@ -589,7 +587,7 @@ acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, } /* - * Adding an extra element to the end of the list, essentially a + * Add an extra element to the end of the list, essentially a * NULL terminator */ *buffer_size_needed = diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c index 8c128dea3252..008058acdd39 100644 --- a/drivers/acpi/resources/rscreate.c +++ b/drivers/acpi/resources/rscreate.c @@ -75,10 +75,11 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, u8 *aml_start; acpi_size list_size_needed = 0; u32 aml_buffer_length; + void *resource; - ACPI_FUNCTION_TRACE("rs_create_resource_list"); + ACPI_FUNCTION_TRACE(rs_create_resource_list); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_buffer = %p\n", aml_buffer)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlBuffer = %p\n", aml_buffer)); /* Params already validated, so we don't re-validate here */ @@ -92,7 +93,7 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, status = acpi_rs_get_list_length(aml_start, aml_buffer_length, &list_size_needed); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X list_size_needed=%X\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n", status, (u32) list_size_needed)); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -107,13 +108,15 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, /* Do the conversion */ - status = acpi_rs_convert_aml_to_resources(aml_start, aml_buffer_length, - output_buffer->pointer); + resource = output_buffer->pointer; + status = acpi_ut_walk_aml_resources(aml_start, aml_buffer_length, + acpi_rs_convert_aml_to_resources, + &resource); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "output_buffer %p Length %X\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", output_buffer->pointer, (u32) output_buffer->length)); return_ACPI_STATUS(AE_OK); } @@ -155,7 +158,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, acpi_status status; struct acpi_buffer path_buffer; - ACPI_FUNCTION_TRACE("rs_create_pci_routing_table"); + ACPI_FUNCTION_TRACE(rs_create_pci_routing_table); /* Params already validated, so we don't re-validate here */ @@ -167,7 +170,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, return_ACPI_STATUS(status); } - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "buffer_size_needed = %X\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "BufferSizeNeeded = %X\n", (u32) buffer_size_needed)); /* Validate/Allocate/Clear caller buffer */ @@ -332,7 +335,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /* Now align the current length */ user_prt->length = - (u32) ACPI_ROUND_UP_to_64_bITS(user_prt->length); + (u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length); /* 4) Fourth subobject: Dereference the PRT.source_index */ @@ -341,7 +344,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, user_prt->source_index = (u32) obj_desc->integer.value; } else { ACPI_ERROR((AE_INFO, - "(PRT[%X].source_index) Need Integer, found %s", + "(PRT[%X].SourceIndex) Need Integer, found %s", index, acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); @@ -352,7 +355,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, top_object_list++; } - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "output_buffer %p Length %X\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", output_buffer->pointer, (u32) output_buffer->length)); return_ACPI_STATUS(AE_OK); } @@ -382,9 +385,9 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, acpi_status status; acpi_size aml_size_needed = 0; - ACPI_FUNCTION_TRACE("rs_create_aml_resources"); + ACPI_FUNCTION_TRACE(rs_create_aml_resources); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "linked_list_buffer = %p\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n", linked_list_buffer)); /* @@ -395,7 +398,7 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, */ status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_size_needed=%X, %s\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n", (u32) aml_size_needed, acpi_format_exception(status))); if (ACPI_FAILURE(status)) { @@ -419,7 +422,7 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, return_ACPI_STATUS(status); } - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "output_buffer %p Length %X\n", + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n", output_buffer->pointer, (u32) output_buffer->length)); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/resources/rsdump.c b/drivers/acpi/resources/rsdump.c index e7de061cf883..9c99a723a860 100644 --- a/drivers/acpi/resources/rsdump.c +++ b/drivers/acpi/resources/rsdump.c @@ -91,11 +91,11 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table); struct acpi_rsdump_info acpi_rs_dump_irq[6] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_irq), "IRQ", NULL}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.triggering), "Triggering", - acpi_gbl_HEdecode}, + acpi_gbl_he_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.polarity), "Polarity", - acpi_gbl_LLdecode}, + acpi_gbl_ll_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(irq.sharable), "Sharing", - acpi_gbl_SHRdecode}, + acpi_gbl_shr_decode}, {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(irq.interrupt_count), "Interrupt Count", NULL}, {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(irq.interrupts[0]), @@ -105,11 +105,11 @@ struct acpi_rsdump_info acpi_rs_dump_irq[6] = { struct acpi_rsdump_info acpi_rs_dump_dma[6] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_dma), "DMA", NULL}, {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.type), "Speed", - acpi_gbl_TYPdecode}, + acpi_gbl_typ_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(dma.bus_master), "Mastering", - acpi_gbl_BMdecode}, + acpi_gbl_bm_decode}, {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(dma.transfer), "Transfer Type", - acpi_gbl_SIZdecode}, + acpi_gbl_siz_decode}, {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(dma.channel_count), "Channel Count", NULL}, {ACPI_RSD_SHORTLIST, ACPI_RSD_OFFSET(dma.channels[0]), "Channel List", @@ -158,7 +158,7 @@ struct acpi_rsdump_info acpi_rs_dump_vendor[3] = { }; struct acpi_rsdump_info acpi_rs_dump_end_tag[1] = { - {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "end_tag", + {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_end_tag), "EndTag", NULL} }; @@ -166,7 +166,7 @@ struct acpi_rsdump_info acpi_rs_dump_memory24[6] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory24), "24-Bit Memory Range", NULL}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory24.write_protect), - "Write Protect", acpi_gbl_RWdecode}, + "Write Protect", acpi_gbl_rw_decode}, {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.minimum), "Address Minimum", NULL}, {ACPI_RSD_UINT16, ACPI_RSD_OFFSET(memory24.maximum), "Address Maximum", @@ -181,7 +181,7 @@ struct acpi_rsdump_info acpi_rs_dump_memory32[6] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory32), "32-Bit Memory Range", NULL}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(memory32.write_protect), - "Write Protect", acpi_gbl_RWdecode}, + "Write Protect", acpi_gbl_rw_decode}, {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.minimum), "Address Minimum", NULL}, {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(memory32.maximum), "Address Maximum", @@ -196,7 +196,7 @@ struct acpi_rsdump_info acpi_rs_dump_fixed_memory32[4] = { {ACPI_RSD_TITLE, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_fixed_memory32), "32-Bit Fixed Memory Range", NULL}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(fixed_memory32.write_protect), - "Write Protect", acpi_gbl_RWdecode}, + "Write Protect", acpi_gbl_rw_decode}, {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address), "Address", NULL}, {ACPI_RSD_UINT32, ACPI_RSD_OFFSET(fixed_memory32.address_length), @@ -278,11 +278,11 @@ struct acpi_rsdump_info acpi_rs_dump_ext_irq[8] = { {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.producer_consumer), "Type", acpi_gbl_consume_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.triggering), - "Triggering", acpi_gbl_HEdecode}, + "Triggering", acpi_gbl_he_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.polarity), "Polarity", - acpi_gbl_LLdecode}, + acpi_gbl_ll_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(extended_irq.sharable), "Sharing", - acpi_gbl_SHRdecode}, + acpi_gbl_shr_decode}, {ACPI_RSD_SOURCE, ACPI_RSD_OFFSET(extended_irq.resource_source), NULL, NULL}, {ACPI_RSD_UINT8, ACPI_RSD_OFFSET(extended_irq.interrupt_count), @@ -314,7 +314,7 @@ static struct acpi_rsdump_info acpi_rs_dump_general_flags[5] = { {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.producer_consumer), "Consumer/Producer", acpi_gbl_consume_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.decode), "Address Decode", - acpi_gbl_DECdecode}, + acpi_gbl_dec_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.min_address_fixed), "Min Relocatability", acpi_gbl_min_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.max_address_fixed), @@ -325,24 +325,24 @@ static struct acpi_rsdump_info acpi_rs_dump_memory_flags[5] = { {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_memory_flags), "Resource Type", (void *)"Memory Range"}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.write_protect), - "Write Protect", acpi_gbl_RWdecode}, + "Write Protect", acpi_gbl_rw_decode}, {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.caching), - "Caching", acpi_gbl_MEMdecode}, + "Caching", acpi_gbl_mem_decode}, {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.mem.range_type), - "Range Type", acpi_gbl_MTPdecode}, + "Range Type", acpi_gbl_mtp_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.mem.translation), - "Translation", acpi_gbl_TTPdecode} + "Translation", acpi_gbl_ttp_decode} }; static struct acpi_rsdump_info acpi_rs_dump_io_flags[4] = { {ACPI_RSD_LITERAL, ACPI_RSD_TABLE_SIZE(acpi_rs_dump_io_flags), "Resource Type", (void *)"I/O Range"}, {ACPI_RSD_2BITFLAG, ACPI_RSD_OFFSET(address.info.io.range_type), - "Range Type", acpi_gbl_RNGdecode}, + "Range Type", acpi_gbl_rng_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation), - "Translation", acpi_gbl_TTPdecode}, + "Translation", acpi_gbl_ttp_decode}, {ACPI_RSD_1BITFLAG, ACPI_RSD_OFFSET(address.info.io.translation_type), - "Translation Type", acpi_gbl_TRSdecode} + "Translation Type", acpi_gbl_trs_decode} }; /* diff --git a/drivers/acpi/resources/rsinfo.c b/drivers/acpi/resources/rsinfo.c index d9ae64b77bd9..9e7ae2f8a1d3 100644 --- a/drivers/acpi/resources/rsinfo.c +++ b/drivers/acpi/resources/rsinfo.c @@ -141,6 +141,7 @@ struct acpi_rsdump_info *acpi_gbl_dump_resource_dispatch[] = { acpi_rs_dump_generic_reg, /* ACPI_RESOURCE_TYPE_GENERIC_REGISTER */ }; #endif + #endif /* ACPI_FUTURE_USAGE */ /* * Base sizes for external AML resource descriptors, indexed by internal type. diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c index 1434e786477e..29423ce030ca 100644 --- a/drivers/acpi/resources/rslist.c +++ b/drivers/acpi/resources/rslist.c @@ -51,76 +51,62 @@ ACPI_MODULE_NAME("rslist") * * FUNCTION: acpi_rs_convert_aml_to_resources * - * PARAMETERS: Aml - Pointer to the resource byte stream - * aml_length - Length of Aml - * output_buffer - Pointer to the buffer that will - * contain the output structures + * PARAMETERS: acpi_walk_aml_callback + * resource_ptr - Pointer to the buffer that will + * contain the output structures * * RETURN: Status * - * DESCRIPTION: Takes the resource byte stream and parses it, creating a - * linked list of resources in the caller's output buffer + * DESCRIPTION: Convert an AML resource to an internal representation of the + * resource that is aligned and easier to access. * ******************************************************************************/ acpi_status -acpi_rs_convert_aml_to_resources(u8 * aml, u32 aml_length, u8 * output_buffer) +acpi_rs_convert_aml_to_resources(u8 * aml, + u32 length, + u32 offset, u8 resource_index, void **context) { - struct acpi_resource *resource = (void *)output_buffer; + struct acpi_resource **resource_ptr = + ACPI_CAST_INDIRECT_PTR(struct acpi_resource, context); + struct acpi_resource *resource; acpi_status status; - u8 resource_index; - u8 *end_aml; - - ACPI_FUNCTION_TRACE("rs_convert_aml_to_resources"); - - end_aml = aml + aml_length; - - /* Loop until end-of-buffer or an end_tag is found */ - - while (aml < end_aml) { - /* Validate the Resource Type and Resource Length */ - - status = acpi_ut_validate_resource(aml, &resource_index); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - /* Convert the AML byte stream resource to a local resource struct */ - - status = - acpi_rs_convert_aml_to_resource(resource, - ACPI_CAST_PTR(union - aml_resource, - aml), - acpi_gbl_get_resource_dispatch - [resource_index]); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, - "Could not convert AML resource (Type %X)", - *aml)); - return_ACPI_STATUS(status); - } + ACPI_FUNCTION_TRACE(rs_convert_aml_to_resources); - /* Normal exit on completion of an end_tag resource descriptor */ - - if (acpi_ut_get_resource_type(aml) == - ACPI_RESOURCE_NAME_END_TAG) { - return_ACPI_STATUS(AE_OK); - } - - /* Point to the next input AML resource */ - - aml += acpi_ut_get_descriptor_length(aml); - - /* Point to the next structure in the output buffer */ + /* + * Check that the input buffer and all subsequent pointers into it + * are aligned on a native word boundary. Most important on IA64 + */ + resource = *resource_ptr; + if (ACPI_IS_MISALIGNED(resource)) { + ACPI_WARNING((AE_INFO, + "Misaligned resource pointer %p", resource)); + } - resource = - ACPI_ADD_PTR(struct acpi_resource, resource, - resource->length); + /* Convert the AML byte stream resource to a local resource struct */ + + status = + acpi_rs_convert_aml_to_resource(resource, + ACPI_CAST_PTR(union aml_resource, + aml), + acpi_gbl_get_resource_dispatch + [resource_index]); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Could not convert AML resource (Type %X)", + *aml)); + return_ACPI_STATUS(status); } - /* Did not find an end_tag resource descriptor */ + ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, + "Type %.2X, AmlLength %.2X InternalLength %.2X\n", + acpi_ut_get_resource_type(aml), length, + resource->length)); - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); + /* Point to the next structure in the output buffer */ + + *resource_ptr = ACPI_ADD_PTR(void, resource, resource->length); + return_ACPI_STATUS(AE_OK); } /******************************************************************************* @@ -150,11 +136,12 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource, u8 *end_aml = output_buffer + aml_size_needed; acpi_status status; - ACPI_FUNCTION_TRACE("rs_convert_resources_to_aml"); + ACPI_FUNCTION_TRACE(rs_convert_resources_to_aml); /* Walk the resource descriptor list, convert each descriptor */ while (aml < end_aml) { + /* Validate the (internal) Resource Type */ if (resource->type > ACPI_RESOURCE_TYPE_MAX) { @@ -191,6 +178,7 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource, /* Check for end-of-list, normal exit */ if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { + /* An End Tag indicates the end of the input Resource Template */ return_ACPI_STATUS(AE_OK); diff --git a/drivers/acpi/resources/rsmisc.c b/drivers/acpi/resources/rsmisc.c index ed866cf1c6d2..faf6e106b785 100644 --- a/drivers/acpi/resources/rsmisc.c +++ b/drivers/acpi/resources/rsmisc.c @@ -81,9 +81,10 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, u16 item_count = 0; u16 temp16 = 0; - ACPI_FUNCTION_TRACE("rs_get_resource"); + ACPI_FUNCTION_TRACE(rs_convert_aml_to_resource); if (((acpi_native_uint) resource) & 0x3) { + /* Each internal resource struct is expected to be 32-bit aligned */ ACPI_WARNING((AE_INFO, @@ -295,9 +296,11 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, exit: if (!flags_mode) { - /* Round the resource struct length up to the next 32-bit boundary */ - resource->length = ACPI_ROUND_UP_to_32_bITS(resource->length); + /* Round the resource struct length up to the next boundary (32 or 64) */ + + resource->length = + (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(resource->length); } return_ACPI_STATUS(AE_OK); } @@ -329,7 +332,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, u16 temp16 = 0; u16 item_count = 0; - ACPI_FUNCTION_TRACE("rs_convert_resource_to_aml"); + ACPI_FUNCTION_TRACE(rs_convert_resource_to_aml); /* * First table entry must be ACPI_RSC_INITxxx and must contain the @@ -535,6 +538,7 @@ if (((aml->irq.flags & 0x09) == 0x00) || ((aml->irq.flags & 0x09) == 0x09)) { resource->data.extended_irq.interrupt_count = temp8; if (temp8 < 1) { + /* Must have at least one IRQ */ return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c index 25b5aedd6612..a9cbee8e8b44 100644 --- a/drivers/acpi/resources/rsutils.c +++ b/drivers/acpi/resources/rsutils.c @@ -205,6 +205,7 @@ acpi_rs_set_resource_length(acpi_rsdesc_size total_length, /* Length is stored differently for large and small descriptors */ if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { + /* Large descriptor -- bytes 1-2 contain the 16-bit length */ ACPI_MOVE_16_TO_16(&aml->large_header.resource_length, @@ -298,7 +299,8 @@ static u16 acpi_rs_strcpy(char *destination, char *source) * string_ptr - (optional) where to store the actual * resource_source string * - * RETURN: Length of the string plus NULL terminator, rounded up to 32 bit + * RETURN: Length of the string plus NULL terminator, rounded up to native + * word boundary * * DESCRIPTION: Copy the optional resource_source data from a raw AML descriptor * to an internal resource descriptor @@ -328,6 +330,7 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length, * we add 1 to the minimum length. */ if (total_length > (acpi_rsdesc_size) (minimum_length + 1)) { + /* Get the resource_source_index */ resource_source->index = aml_resource_source[0]; @@ -344,23 +347,26 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length, } /* - * In order for the struct_size to fall on a 32-bit boundary, calculate - * the length of the string (+1 for the NULL terminator) and expand the - * struct_size to the next 32-bit boundary. + * In order for the Resource length to be a multiple of the native + * word, calculate the length of the string (+1 for NULL terminator) + * and expand to the next word multiple. * * Zero the entire area of the buffer. */ total_length = - ACPI_ROUND_UP_to_32_bITS(ACPI_STRLEN - ((char *)&aml_resource_source[1]) + - 1); + (u32) + ACPI_STRLEN(ACPI_CAST_PTR(char, &aml_resource_source[1])) + + 1; + total_length = (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(total_length); + ACPI_MEMSET(resource_source->string_ptr, 0, total_length); /* Copy the resource_source string to the destination */ resource_source->string_length = acpi_rs_strcpy(resource_source->string_ptr, - (char *)&aml_resource_source[1]); + ACPI_CAST_PTR(char, + &aml_resource_source[1])); return ((acpi_rs_length) total_length); } @@ -405,6 +411,7 @@ acpi_rs_set_resource_source(union aml_resource * aml, /* Non-zero string length indicates presence of a resource_source */ if (resource_source->string_length) { + /* Point to the end of the AML descriptor */ aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length); @@ -415,7 +422,7 @@ acpi_rs_set_resource_source(union aml_resource * aml, /* Copy the resource_source string */ - ACPI_STRCPY((char *)&aml_resource_source[1], + ACPI_STRCPY(ACPI_CAST_PTR(char, &aml_resource_source[1]), resource_source->string_ptr); /* @@ -435,9 +442,9 @@ acpi_rs_set_resource_source(union aml_resource * aml, * * FUNCTION: acpi_rs_get_prt_method_data * - * PARAMETERS: Handle - a handle to the containing object - * ret_buffer - a pointer to a buffer structure for the - * results + * PARAMETERS: Node - Device node + * ret_buffer - Pointer to a buffer structure for the + * results * * RETURN: Status * @@ -450,18 +457,19 @@ acpi_rs_set_resource_source(union aml_resource * aml, ******************************************************************************/ acpi_status -acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer) +acpi_rs_get_prt_method_data(struct acpi_namespace_node * node, + struct acpi_buffer * ret_buffer) { union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("rs_get_prt_method_data"); + ACPI_FUNCTION_TRACE(rs_get_prt_method_data); /* Parameters guaranteed valid by caller */ /* Execute the method, no parameters */ - status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRT, + status = acpi_ut_evaluate_object(node, METHOD_NAME__PRT, ACPI_BTYPE_PACKAGE, &obj_desc); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -483,9 +491,9 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer) * * FUNCTION: acpi_rs_get_crs_method_data * - * PARAMETERS: Handle - a handle to the containing object - * ret_buffer - a pointer to a buffer structure for the - * results + * PARAMETERS: Node - Device node + * ret_buffer - Pointer to a buffer structure for the + * results * * RETURN: Status * @@ -498,18 +506,19 @@ acpi_rs_get_prt_method_data(acpi_handle handle, struct acpi_buffer * ret_buffer) ******************************************************************************/ acpi_status -acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) +acpi_rs_get_crs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *ret_buffer) { union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("rs_get_crs_method_data"); + ACPI_FUNCTION_TRACE(rs_get_crs_method_data); /* Parameters guaranteed valid by caller */ /* Execute the method, no parameters */ - status = acpi_ut_evaluate_object(handle, METHOD_NAME__CRS, + status = acpi_ut_evaluate_object(node, METHOD_NAME__CRS, ACPI_BTYPE_BUFFER, &obj_desc); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -522,7 +531,7 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) */ status = acpi_rs_create_resource_list(obj_desc, ret_buffer); - /* on exit, we must delete the object returned by evaluate_object */ + /* On exit, we must delete the object returned by evaluate_object */ acpi_ut_remove_reference(obj_desc); return_ACPI_STATUS(status); @@ -532,9 +541,9 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) * * FUNCTION: acpi_rs_get_prs_method_data * - * PARAMETERS: Handle - a handle to the containing object - * ret_buffer - a pointer to a buffer structure for the - * results + * PARAMETERS: Node - Device node + * ret_buffer - Pointer to a buffer structure for the + * results * * RETURN: Status * @@ -548,18 +557,19 @@ acpi_rs_get_crs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) #ifdef ACPI_FUTURE_USAGE acpi_status -acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) +acpi_rs_get_prs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *ret_buffer) { union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("rs_get_prs_method_data"); + ACPI_FUNCTION_TRACE(rs_get_prs_method_data); /* Parameters guaranteed valid by caller */ /* Execute the method, no parameters */ - status = acpi_ut_evaluate_object(handle, METHOD_NAME__PRS, + status = acpi_ut_evaluate_object(node, METHOD_NAME__PRS, ACPI_BTYPE_BUFFER, &obj_desc); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -572,7 +582,7 @@ acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) */ status = acpi_rs_create_resource_list(obj_desc, ret_buffer); - /* on exit, we must delete the object returned by evaluate_object */ + /* On exit, we must delete the object returned by evaluate_object */ acpi_ut_remove_reference(obj_desc); return_ACPI_STATUS(status); @@ -583,10 +593,10 @@ acpi_rs_get_prs_method_data(acpi_handle handle, struct acpi_buffer *ret_buffer) * * FUNCTION: acpi_rs_get_method_data * - * PARAMETERS: Handle - a handle to the containing object + * PARAMETERS: Handle - Handle to the containing object * Path - Path to method, relative to Handle - * ret_buffer - a pointer to a buffer structure for the - * results + * ret_buffer - Pointer to a buffer structure for the + * results * * RETURN: Status * @@ -605,7 +615,7 @@ acpi_rs_get_method_data(acpi_handle handle, union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("rs_get_method_data"); + ACPI_FUNCTION_TRACE(rs_get_method_data); /* Parameters guaranteed valid by caller */ @@ -634,9 +644,9 @@ acpi_rs_get_method_data(acpi_handle handle, * * FUNCTION: acpi_rs_set_srs_method_data * - * PARAMETERS: Handle - a handle to the containing object - * in_buffer - a pointer to a buffer structure of the - * parameter + * PARAMETERS: Node - Device node + * in_buffer - Pointer to a buffer structure of the + * parameter * * RETURN: Status * @@ -646,23 +656,37 @@ acpi_rs_get_method_data(acpi_handle handle, * If the function fails an appropriate status will be returned * and the contents of the callers buffer is undefined. * + * Note: Parameters guaranteed valid by caller + * ******************************************************************************/ acpi_status -acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer) +acpi_rs_set_srs_method_data(struct acpi_namespace_node *node, + struct acpi_buffer *in_buffer) { - struct acpi_parameter_info info; - union acpi_operand_object *params[2]; + struct acpi_evaluate_info *info; + union acpi_operand_object *args[2]; acpi_status status; struct acpi_buffer buffer; - ACPI_FUNCTION_TRACE("rs_set_srs_method_data"); + ACPI_FUNCTION_TRACE(rs_set_srs_method_data); - /* Parameters guaranteed valid by caller */ + /* Allocate and initialize the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->prefix_node = node; + info->pathname = METHOD_NAME__SRS; + info->parameters = args; + info->parameter_type = ACPI_PARAM_ARGS; + info->flags = ACPI_IGNORE_RETURN_VALUE; /* * The in_buffer parameter will point to a linked list of - * resource parameters. It needs to be formatted into a + * resource parameters. It needs to be formatted into a * byte stream to be sent in as an input parameter to _SRS * * Convert the linked list into a byte stream @@ -670,41 +694,36 @@ acpi_rs_set_srs_method_data(acpi_handle handle, struct acpi_buffer *in_buffer) buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + goto cleanup; } - /* Init the param object */ + /* Create and initialize the method parameter object */ - params[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); - if (!params[0]) { - acpi_os_free(buffer.pointer); - return_ACPI_STATUS(AE_NO_MEMORY); + args[0] = acpi_ut_create_internal_object(ACPI_TYPE_BUFFER); + if (!args[0]) { + /* + * Must free the buffer allocated above (otherwise it is freed + * later) + */ + ACPI_FREE(buffer.pointer); + status = AE_NO_MEMORY; + goto cleanup; } - /* Set up the parameter object */ - - params[0]->buffer.length = (u32) buffer.length; - params[0]->buffer.pointer = buffer.pointer; - params[0]->common.flags = AOPOBJ_DATA_VALID; - params[1] = NULL; - - info.node = handle; - info.parameters = params; - info.parameter_type = ACPI_PARAM_ARGS; + args[0]->buffer.length = (u32) buffer.length; + args[0]->buffer.pointer = buffer.pointer; + args[0]->common.flags = AOPOBJ_DATA_VALID; + args[1] = NULL; - /* Execute the method, no return value */ + /* Execute the method, no return value is expected */ - status = acpi_ns_evaluate_relative(METHOD_NAME__SRS, &info); - if (ACPI_SUCCESS(status)) { - /* Delete any return object (especially if implicit_return is enabled) */ + status = acpi_ns_evaluate(info); - if (info.return_object) { - acpi_ut_remove_reference(info.return_object); - } - } + /* Clean up and return the status from acpi_ns_evaluate */ - /* Clean up and return the status from acpi_ns_evaluate_relative */ + acpi_ut_remove_reference(args[0]); - acpi_ut_remove_reference(params[0]); + cleanup: + ACPI_FREE(info); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c index 88b67077aeeb..1999e2ab7daa 100644 --- a/drivers/acpi/resources/rsxface.c +++ b/drivers/acpi/resources/rsxface.c @@ -41,10 +41,9 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acresrc.h> +#include <acpi/acnamesp.h> #define _COMPONENT ACPI_RESOURCES ACPI_MODULE_NAME("rsxface") @@ -68,312 +67,262 @@ ACPI_MODULE_NAME("rsxface") static acpi_status acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context); +static acpi_status +acpi_rs_validate_parameters(acpi_handle device_handle, + struct acpi_buffer *buffer, + struct acpi_namespace_node **return_node); + /******************************************************************************* * - * FUNCTION: acpi_get_irq_routing_table + * FUNCTION: acpi_rs_validate_parameters * - * PARAMETERS: device_handle - a handle to the Bus device we are querying - * ret_buffer - a pointer to a buffer to receive the - * current resources for the device + * PARAMETERS: device_handle - Handle to a device + * Buffer - Pointer to a data buffer + * return_node - Pointer to where the device node is returned * * RETURN: Status * - * DESCRIPTION: This function is called to get the IRQ routing table for a - * specific bus. The caller must first acquire a handle for the - * desired bus. The routine table is placed in the buffer pointed - * to by the ret_buffer variable parameter. - * - * If the function fails an appropriate status will be returned - * and the value of ret_buffer is undefined. - * - * This function attempts to execute the _PRT method contained in - * the object indicated by the passed device_handle. + * DESCRIPTION: Common parameter validation for resource interfaces * ******************************************************************************/ -acpi_status -acpi_get_irq_routing_table(acpi_handle device_handle, - struct acpi_buffer *ret_buffer) +static acpi_status +acpi_rs_validate_parameters(acpi_handle device_handle, + struct acpi_buffer *buffer, + struct acpi_namespace_node **return_node) { acpi_status status; + struct acpi_namespace_node *node; - ACPI_FUNCTION_TRACE("acpi_get_irq_routing_table "); + ACPI_FUNCTION_TRACE(rs_validate_parameters); /* - * Must have a valid handle and buffer, So we have to have a handle - * and a return buffer structure, and if there is a non-zero buffer length - * we also need a valid pointer in the buffer. If it's a zero buffer length, - * we'll be returning the needed buffer size, so keep going. + * Must have a valid handle to an ACPI device */ if (!device_handle) { return_ACPI_STATUS(AE_BAD_PARAMETER); } - status = acpi_ut_validate_buffer(ret_buffer); + node = acpi_ns_map_handle_to_node(device_handle); + if (!node) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + if (node->type != ACPI_TYPE_DEVICE) { + return_ACPI_STATUS(AE_TYPE); + } + + /* + * Validate the user buffer object + * + * if there is a non-zero buffer length we also need a valid pointer in + * the buffer. If it's a zero buffer length, we'll be returning the + * needed buffer size (later), so keep going. + */ + status = acpi_ut_validate_buffer(buffer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - status = acpi_rs_get_prt_method_data(device_handle, ret_buffer); - return_ACPI_STATUS(status); + *return_node = node; + return_ACPI_STATUS(AE_OK); } /******************************************************************************* * - * FUNCTION: acpi_get_current_resources + * FUNCTION: acpi_get_irq_routing_table * - * PARAMETERS: device_handle - a handle to the device object for the - * device we are querying - * ret_buffer - a pointer to a buffer to receive the + * PARAMETERS: device_handle - Handle to the Bus device we are querying + * ret_buffer - Pointer to a buffer to receive the * current resources for the device * * RETURN: Status * - * DESCRIPTION: This function is called to get the current resources for a - * specific device. The caller must first acquire a handle for - * the desired device. The resource data is placed in the buffer - * pointed to by the ret_buffer variable parameter. + * DESCRIPTION: This function is called to get the IRQ routing table for a + * specific bus. The caller must first acquire a handle for the + * desired bus. The routine table is placed in the buffer pointed + * to by the ret_buffer variable parameter. * * If the function fails an appropriate status will be returned * and the value of ret_buffer is undefined. * - * This function attempts to execute the _CRS method contained in + * This function attempts to execute the _PRT method contained in * the object indicated by the passed device_handle. * ******************************************************************************/ acpi_status -acpi_get_current_resources(acpi_handle device_handle, +acpi_get_irq_routing_table(acpi_handle device_handle, struct acpi_buffer *ret_buffer) { acpi_status status; + struct acpi_namespace_node *node; - ACPI_FUNCTION_TRACE("acpi_get_current_resources"); + ACPI_FUNCTION_TRACE(acpi_get_irq_routing_table); - /* - * Must have a valid handle and buffer, So we have to have a handle - * and a return buffer structure, and if there is a non-zero buffer length - * we also need a valid pointer in the buffer. If it's a zero buffer length, - * we'll be returning the needed buffer size, so keep going. - */ - if (!device_handle) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } + /* Validate parameters then dispatch to internal routine */ - status = acpi_ut_validate_buffer(ret_buffer); + status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - status = acpi_rs_get_crs_method_data(device_handle, ret_buffer); + status = acpi_rs_get_prt_method_data(node, ret_buffer); return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_current_resources); +ACPI_EXPORT_SYMBOL(acpi_get_irq_routing_table) /******************************************************************************* * - * FUNCTION: acpi_get_possible_resources + * FUNCTION: acpi_get_current_resources * - * PARAMETERS: device_handle - a handle to the device object for the + * PARAMETERS: device_handle - Handle to the device object for the * device we are querying - * ret_buffer - a pointer to a buffer to receive the - * resources for the device + * ret_buffer - Pointer to a buffer to receive the + * current resources for the device * * RETURN: Status * - * DESCRIPTION: This function is called to get a list of the possible resources - * for a specific device. The caller must first acquire a handle - * for the desired device. The resource data is placed in the - * buffer pointed to by the ret_buffer variable. + * DESCRIPTION: This function is called to get the current resources for a + * specific device. The caller must first acquire a handle for + * the desired device. The resource data is placed in the buffer + * pointed to by the ret_buffer variable parameter. * * If the function fails an appropriate status will be returned * and the value of ret_buffer is undefined. * + * This function attempts to execute the _CRS method contained in + * the object indicated by the passed device_handle. + * ******************************************************************************/ - -#ifdef ACPI_FUTURE_USAGE acpi_status -acpi_get_possible_resources(acpi_handle device_handle, - struct acpi_buffer *ret_buffer) +acpi_get_current_resources(acpi_handle device_handle, + struct acpi_buffer *ret_buffer) { acpi_status status; + struct acpi_namespace_node *node; - ACPI_FUNCTION_TRACE("acpi_get_possible_resources"); + ACPI_FUNCTION_TRACE(acpi_get_current_resources); - /* - * Must have a valid handle and buffer, So we have to have a handle - * and a return buffer structure, and if there is a non-zero buffer length - * we also need a valid pointer in the buffer. If it's a zero buffer length, - * we'll be returning the needed buffer size, so keep going. - */ - if (!device_handle) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } + /* Validate parameters then dispatch to internal routine */ - status = acpi_ut_validate_buffer(ret_buffer); + status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - status = acpi_rs_get_prs_method_data(device_handle, ret_buffer); + status = acpi_rs_get_crs_method_data(node, ret_buffer); return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_possible_resources); -#endif /* ACPI_FUTURE_USAGE */ +ACPI_EXPORT_SYMBOL(acpi_get_current_resources) +#ifdef ACPI_FUTURE_USAGE /******************************************************************************* * - * FUNCTION: acpi_walk_resources + * FUNCTION: acpi_get_possible_resources * * PARAMETERS: device_handle - Handle to the device object for the * device we are querying - * Name - Method name of the resources we want - * (METHOD_NAME__CRS or METHOD_NAME__PRS) - * user_function - Called for each resource - * Context - Passed to user_function + * ret_buffer - Pointer to a buffer to receive the + * resources for the device * * RETURN: Status * - * DESCRIPTION: Retrieves the current or possible resource list for the - * specified device. The user_function is called once for - * each resource in the list. + * DESCRIPTION: This function is called to get a list of the possible resources + * for a specific device. The caller must first acquire a handle + * for the desired device. The resource data is placed in the + * buffer pointed to by the ret_buffer variable. + * + * If the function fails an appropriate status will be returned + * and the value of ret_buffer is undefined. * ******************************************************************************/ - acpi_status -acpi_walk_resources(acpi_handle device_handle, - char *name, - ACPI_WALK_RESOURCE_CALLBACK user_function, void *context) +acpi_get_possible_resources(acpi_handle device_handle, + struct acpi_buffer *ret_buffer) { acpi_status status; - struct acpi_buffer buffer; - struct acpi_resource *resource; - struct acpi_resource *resource_end; - - ACPI_FUNCTION_TRACE("acpi_walk_resources"); - - /* Parameter validation */ + struct acpi_namespace_node *node; - if (!device_handle || !user_function || !name || - (ACPI_STRNCMP(name, METHOD_NAME__CRS, sizeof(METHOD_NAME__CRS)) && - ACPI_STRNCMP(name, METHOD_NAME__PRS, sizeof(METHOD_NAME__PRS)))) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } + ACPI_FUNCTION_TRACE(acpi_get_possible_resources); - /* Get the _CRS or _PRS resource list */ + /* Validate parameters then dispatch to internal routine */ - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_rs_get_method_data(device_handle, name, &buffer); + status = acpi_rs_validate_parameters(device_handle, ret_buffer, &node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - /* Buffer now contains the resource list */ - - resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer); - resource_end = - ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length); - - /* Walk the resource list until the end_tag is found (or buffer end) */ - - while (resource < resource_end) { - /* Sanity check the resource */ - - if (resource->type > ACPI_RESOURCE_TYPE_MAX) { - status = AE_AML_INVALID_RESOURCE_TYPE; - break; - } - - /* Invoke the user function, abort on any error returned */ - - status = user_function(resource, context); - if (ACPI_FAILURE(status)) { - if (status == AE_CTRL_TERMINATE) { - /* This is an OK termination by the user function */ - - status = AE_OK; - } - break; - } - - /* end_tag indicates end-of-list */ - - if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { - break; - } - - /* Get the next resource descriptor */ - - resource = - ACPI_ADD_PTR(struct acpi_resource, resource, - resource->length); - } - - ACPI_MEM_FREE(buffer.pointer); + status = acpi_rs_get_prs_method_data(node, ret_buffer); return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_walk_resources); +ACPI_EXPORT_SYMBOL(acpi_get_possible_resources) +#endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* * * FUNCTION: acpi_set_current_resources * - * PARAMETERS: device_handle - a handle to the device object for the - * device we are changing the resources of - * in_buffer - a pointer to a buffer containing the + * PARAMETERS: device_handle - Handle to the device object for the + * device we are setting resources + * in_buffer - Pointer to a buffer containing the * resources to be set for the device * * RETURN: Status * * DESCRIPTION: This function is called to set the current resources for a - * specific device. The caller must first acquire a handle for - * the desired device. The resource data is passed to the routine + * specific device. The caller must first acquire a handle for + * the desired device. The resource data is passed to the routine * the buffer pointed to by the in_buffer variable. * ******************************************************************************/ - acpi_status acpi_set_current_resources(acpi_handle device_handle, struct acpi_buffer *in_buffer) { acpi_status status; + struct acpi_namespace_node *node; - ACPI_FUNCTION_TRACE("acpi_set_current_resources"); + ACPI_FUNCTION_TRACE(acpi_set_current_resources); - /* Must have a valid handle and buffer */ + /* Validate the buffer, don't allow zero length */ - if ((!device_handle) || - (!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) { + if ((!in_buffer) || (!in_buffer->pointer) || (!in_buffer->length)) { return_ACPI_STATUS(AE_BAD_PARAMETER); } - status = acpi_rs_set_srs_method_data(device_handle, in_buffer); + /* Validate parameters then dispatch to internal routine */ + + status = acpi_rs_validate_parameters(device_handle, in_buffer, &node); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_rs_set_srs_method_data(node, in_buffer); return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_set_current_resources); +ACPI_EXPORT_SYMBOL(acpi_set_current_resources) /****************************************************************************** * * FUNCTION: acpi_resource_to_address64 * - * PARAMETERS: Resource - Pointer to a resource - * Out - Pointer to the users's return - * buffer (a struct - * struct acpi_resource_address64) + * PARAMETERS: Resource - Pointer to a resource + * Out - Pointer to the users's return buffer + * (a struct acpi_resource_address64) * * RETURN: Status * * DESCRIPTION: If the resource is an address16, address32, or address64, - * copy it to the address64 return buffer. This saves the + * copy it to the address64 return buffer. This saves the * caller from having to duplicate code for different-sized * addresses. * ******************************************************************************/ - acpi_status acpi_resource_to_address64(struct acpi_resource *resource, struct acpi_resource_address64 *out) @@ -415,18 +364,18 @@ acpi_resource_to_address64(struct acpi_resource *resource, return (AE_OK); } -EXPORT_SYMBOL(acpi_resource_to_address64); +ACPI_EXPORT_SYMBOL(acpi_resource_to_address64) /******************************************************************************* * * FUNCTION: acpi_get_vendor_resource * - * PARAMETERS: device_handle - Handle for the parent device object - * Name - Method name for the parent resource - * (METHOD_NAME__CRS or METHOD_NAME__PRS) - * Uuid - Pointer to the UUID to be matched. - * includes both subtype and 16-byte UUID - * ret_buffer - Where the vendor resource is returned + * PARAMETERS: device_handle - Handle for the parent device object + * Name - Method name for the parent resource + * (METHOD_NAME__CRS or METHOD_NAME__PRS) + * Uuid - Pointer to the UUID to be matched. + * includes both subtype and 16-byte UUID + * ret_buffer - Where the vendor resource is returned * * RETURN: Status * @@ -435,7 +384,6 @@ EXPORT_SYMBOL(acpi_resource_to_address64); * UUID subtype. Returns a struct acpi_resource of type Vendor. * ******************************************************************************/ - acpi_status acpi_get_vendor_resource(acpi_handle device_handle, char *name, @@ -467,18 +415,19 @@ acpi_get_vendor_resource(acpi_handle device_handle, return (info.status); } +ACPI_EXPORT_SYMBOL(acpi_get_vendor_resource) + /******************************************************************************* * * FUNCTION: acpi_rs_match_vendor_resource * - * PARAMETERS: ACPI_WALK_RESOURCE_CALLBACK + * PARAMETERS: acpi_walk_resource_callback * * RETURN: Status * * DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID * ******************************************************************************/ - static acpi_status acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context) { @@ -526,3 +475,101 @@ acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context) info->status = AE_OK; return (AE_CTRL_TERMINATE); } + +ACPI_EXPORT_SYMBOL(acpi_rs_match_vendor_resource) + +/******************************************************************************* + * + * FUNCTION: acpi_walk_resources + * + * PARAMETERS: device_handle - Handle to the device object for the + * device we are querying + * Name - Method name of the resources we want + * (METHOD_NAME__CRS or METHOD_NAME__PRS) + * user_function - Called for each resource + * Context - Passed to user_function + * + * RETURN: Status + * + * DESCRIPTION: Retrieves the current or possible resource list for the + * specified device. The user_function is called once for + * each resource in the list. + * + ******************************************************************************/ + +acpi_status +acpi_walk_resources(acpi_handle device_handle, + char *name, + acpi_walk_resource_callback user_function, void *context) +{ + acpi_status status; + struct acpi_buffer buffer; + struct acpi_resource *resource; + struct acpi_resource *resource_end; + + ACPI_FUNCTION_TRACE(acpi_walk_resources); + + /* Parameter validation */ + + if (!device_handle || !user_function || !name || + (!ACPI_COMPARE_NAME(name, METHOD_NAME__CRS) && + !ACPI_COMPARE_NAME(name, METHOD_NAME__PRS))) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Get the _CRS or _PRS resource list */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_rs_get_method_data(device_handle, name, &buffer); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Buffer now contains the resource list */ + + resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer); + resource_end = + ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length); + + /* Walk the resource list until the end_tag is found (or buffer end) */ + + while (resource < resource_end) { + + /* Sanity check the resource */ + + if (resource->type > ACPI_RESOURCE_TYPE_MAX) { + status = AE_AML_INVALID_RESOURCE_TYPE; + break; + } + + /* Invoke the user function, abort on any error returned */ + + status = user_function(resource, context); + if (ACPI_FAILURE(status)) { + if (status == AE_CTRL_TERMINATE) { + + /* This is an OK termination by the user function */ + + status = AE_OK; + } + break; + } + + /* end_tag indicates end-of-list */ + + if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { + break; + } + + /* Get the next resource descriptor */ + + resource = + ACPI_ADD_PTR(struct acpi_resource, resource, + resource->length); + } + + ACPI_FREE(buffer.pointer); + return_ACPI_STATUS(status); +} + +ACPI_EXPORT_SYMBOL(acpi_walk_resources) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index a0ab828b2cc5..f8316a05ede7 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -142,7 +142,7 @@ static void acpi_device_register(struct acpi_device *device, create_sysfs_device_files(device); } -static int acpi_device_unregister(struct acpi_device *device, int type) +static void acpi_device_unregister(struct acpi_device *device, int type) { spin_lock(&acpi_device_lock); if (device->parent) { @@ -158,7 +158,6 @@ static int acpi_device_unregister(struct acpi_device *device, int type) acpi_detach_data(device->handle, acpi_bus_data_handler); remove_sysfs_device_files(device); kobject_unregister(&device->kobj); - return 0; } void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context) @@ -234,12 +233,9 @@ static int acpi_bus_get_power_flags(struct acpi_device *device) int acpi_match_ids(struct acpi_device *device, char *ids) { - int error = 0; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - if (device->flags.hardware_id) if (strstr(ids, device->pnp.hardware_id)) - goto Done; + return 0; if (device->flags.compatible_ids) { struct acpi_compatible_id_list *cid_list = device->pnp.cid_list; @@ -248,15 +244,10 @@ int acpi_match_ids(struct acpi_device *device, char *ids) /* compare multiple _CID entries against driver ids */ for (i = 0; i < cid_list->count; i++) { if (strstr(ids, cid_list->id[i].value)) - goto Done; + return 0; } } - error = -ENOENT; - - Done: - if (buffer.pointer) - acpi_os_free(buffer.pointer); - return error; + return -ENOENT; } static acpi_status @@ -441,10 +432,7 @@ acpi_eject_store(struct acpi_device *device, const char *buf, size_t count) islockable = device->flags.lockable; handle = device->handle; - if (type == ACPI_TYPE_PROCESSOR) - result = acpi_bus_trim(device, 0); - else - result = acpi_bus_trim(device, 1); + result = acpi_bus_trim(device, 1); if (!result) result = acpi_eject_operation(handle, islockable); @@ -471,7 +459,6 @@ static int acpi_bus_get_perf_flags(struct acpi_device *device) -------------------------------------------------------------------------- */ static LIST_HEAD(acpi_bus_drivers); -static DECLARE_MUTEX(acpi_bus_drivers_lock); /** * acpi_bus_match - match device IDs to driver's supported IDs @@ -548,10 +535,9 @@ static int acpi_start_single_object(struct acpi_device *device) return_VALUE(result); } -static int acpi_driver_attach(struct acpi_driver *drv) +static void acpi_driver_attach(struct acpi_driver *drv) { struct list_head *node, *next; - int count = 0; ACPI_FUNCTION_TRACE("acpi_driver_attach"); @@ -568,7 +554,6 @@ static int acpi_driver_attach(struct acpi_driver *drv) if (!acpi_bus_driver_init(dev, drv)) { acpi_start_single_object(dev); atomic_inc(&drv->references); - count++; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found driver [%s] for device [%s]\n", drv->name, dev->pnp.bus_id)); @@ -577,10 +562,9 @@ static int acpi_driver_attach(struct acpi_driver *drv) spin_lock(&acpi_device_lock); } spin_unlock(&acpi_device_lock); - return_VALUE(count); } -static int acpi_driver_detach(struct acpi_driver *drv) +static void acpi_driver_detach(struct acpi_driver *drv) { struct list_head *node, *next; @@ -602,7 +586,6 @@ static int acpi_driver_detach(struct acpi_driver *drv) } } spin_unlock(&acpi_device_lock); - return_VALUE(0); } /** @@ -610,28 +593,22 @@ static int acpi_driver_detach(struct acpi_driver *drv) * @driver: driver being registered * * Registers a driver with the ACPI bus. Searches the namespace for all - * devices that match the driver's criteria and binds. Returns the - * number of devices that were claimed by the driver, or a negative - * error status for failure. + * devices that match the driver's criteria and binds. Returns zero for + * success or a negative error status for failure. */ int acpi_bus_register_driver(struct acpi_driver *driver) { - int count; - ACPI_FUNCTION_TRACE("acpi_bus_register_driver"); if (acpi_disabled) return_VALUE(-ENODEV); - if (!driver) - return_VALUE(-EINVAL); - spin_lock(&acpi_device_lock); list_add_tail(&driver->node, &acpi_bus_drivers); spin_unlock(&acpi_device_lock); - count = acpi_driver_attach(driver); + acpi_driver_attach(driver); - return_VALUE(count); + return_VALUE(0); } EXPORT_SYMBOL(acpi_bus_register_driver); @@ -643,23 +620,16 @@ EXPORT_SYMBOL(acpi_bus_register_driver); * Unregisters a driver with the ACPI bus. Searches the namespace for all * devices that match the driver's criteria and unbinds. */ -int acpi_bus_unregister_driver(struct acpi_driver *driver) +void acpi_bus_unregister_driver(struct acpi_driver *driver) { - int error = 0; + acpi_driver_detach(driver); - ACPI_FUNCTION_TRACE("acpi_bus_unregister_driver"); - - if (driver) { - acpi_driver_detach(driver); - - if (!atomic_read(&driver->references)) { - spin_lock(&acpi_device_lock); - list_del_init(&driver->node); - spin_unlock(&acpi_device_lock); - } - } else - error = -EINVAL; - return_VALUE(error); + if (!atomic_read(&driver->references)) { + spin_lock(&acpi_device_lock); + list_del_init(&driver->node); + spin_unlock(&acpi_device_lock); + } + return; } EXPORT_SYMBOL(acpi_bus_unregister_driver); @@ -1371,6 +1341,100 @@ static int acpi_bus_scan_fixed(struct acpi_device *root) return_VALUE(result); } + +static inline struct acpi_device * to_acpi_dev(struct device * dev) +{ + return container_of(dev, struct acpi_device, dev); +} + + +static int root_suspend(struct acpi_device * acpi_dev, pm_message_t state) +{ + struct acpi_device * dev, * next; + int result; + + spin_lock(&acpi_device_lock); + list_for_each_entry_safe_reverse(dev, next, &acpi_device_list, g_list) { + if (dev->driver && dev->driver->ops.suspend) { + spin_unlock(&acpi_device_lock); + result = dev->driver->ops.suspend(dev, 0); + if (result) { + printk(KERN_ERR PREFIX "[%s - %s] Suspend failed: %d\n", + acpi_device_name(dev), + acpi_device_bid(dev), result); + } + spin_lock(&acpi_device_lock); + } + } + spin_unlock(&acpi_device_lock); + return 0; +} + + +static int acpi_device_suspend(struct device * dev, pm_message_t state) +{ + struct acpi_device * acpi_dev = to_acpi_dev(dev); + + /* + * For now, we should only register 1 generic device - + * the ACPI root device - and from there, we walk the + * tree of ACPI devices to suspend each one using the + * ACPI driver methods. + */ + if (acpi_dev->handle == ACPI_ROOT_OBJECT) + root_suspend(acpi_dev, state); + return 0; +} + + + +static int root_resume(struct acpi_device * acpi_dev) +{ + struct acpi_device * dev, * next; + int result; + + spin_lock(&acpi_device_lock); + list_for_each_entry_safe(dev, next, &acpi_device_list, g_list) { + if (dev->driver && dev->driver->ops.resume) { + spin_unlock(&acpi_device_lock); + result = dev->driver->ops.resume(dev, 0); + if (result) { + printk(KERN_ERR PREFIX "[%s - %s] resume failed: %d\n", + acpi_device_name(dev), + acpi_device_bid(dev), result); + } + spin_lock(&acpi_device_lock); + } + } + spin_unlock(&acpi_device_lock); + return 0; +} + + +static int acpi_device_resume(struct device * dev) +{ + struct acpi_device * acpi_dev = to_acpi_dev(dev); + + /* + * For now, we should only register 1 generic device - + * the ACPI root device - and from there, we walk the + * tree of ACPI devices to resume each one using the + * ACPI driver methods. + */ + if (acpi_dev->handle == ACPI_ROOT_OBJECT) + root_resume(acpi_dev); + return 0; +} + + +struct bus_type acpi_bus_type = { + .name = "acpi", + .suspend = acpi_device_suspend, + .resume = acpi_device_resume, +}; + + + static int __init acpi_scan_init(void) { int result; @@ -1383,6 +1447,12 @@ static int __init acpi_scan_init(void) kset_register(&acpi_namespace_kset); + result = bus_register(&acpi_bus_type); + if (result) { + /* We don't want to quit even if we failed to add suspend/resume */ + printk(KERN_ERR PREFIX "Could not register bus type\n"); + } + /* * Create the root device in the bus's device tree */ @@ -1392,6 +1462,16 @@ static int __init acpi_scan_init(void) goto Done; result = acpi_start_single_object(acpi_root); + if (result) + goto Done; + + acpi_root->dev.bus = &acpi_bus_type; + snprintf(acpi_root->dev.bus_id, BUS_ID_SIZE, "%s", acpi_bus_type.name); + result = device_register(&acpi_root->dev); + if (result) { + /* We don't want to quit even if we failed to add suspend/resume */ + printk(KERN_ERR PREFIX "Could not register device\n"); + } /* * Enumerate devices in the ACPI namespace. diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index 930427fc0c4b..62ce87d71651 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -105,6 +105,14 @@ static int acpi_pm_enter(suspend_state_t pm_state) default: return -EINVAL; } + + /* ACPI 3.0 specs (P62) says that it's the responsabilty + * of the OSPM to clear the status bit [ implying that the + * POWER_BUTTON event should not reach userspace ] + */ + if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) + acpi_clear_event(ACPI_EVENT_POWER_BUTTON); + local_irq_restore(flags); printk(KERN_DEBUG "Back to C!\n"); diff --git a/drivers/acpi/sleep/wakeup.c b/drivers/acpi/sleep/wakeup.c index 85df0ceda2a9..af1dbabaf0b1 100644 --- a/drivers/acpi/sleep/wakeup.c +++ b/drivers/acpi/sleep/wakeup.c @@ -155,7 +155,6 @@ static int __init acpi_wakeup_device_init(void) if (acpi_disabled) return 0; - printk("ACPI wakeup devices: \n"); spin_lock(&acpi_device_lock); list_for_each_safe(node, next, &acpi_wakeup_device_list) { @@ -174,10 +173,8 @@ static int __init acpi_wakeup_device_init(void) dev->wakeup.state.enabled = 1; spin_lock(&acpi_device_lock); } - printk("%4s ", dev->pnp.bus_id); } spin_unlock(&acpi_device_lock); - printk("\n"); return 0; } diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index e4308c7a6743..a934ac42178d 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -39,7 +39,7 @@ ACPI_MODULE_NAME("acpi_system") #define ACPI_SYSTEM_FILE_EVENT "event" #define ACPI_SYSTEM_FILE_DSDT "dsdt" #define ACPI_SYSTEM_FILE_FADT "fadt" -extern FADT_DESCRIPTOR acpi_fadt; +extern struct fadt_descriptor acpi_fadt; /* -------------------------------------------------------------------------- FS Interface (/proc) @@ -82,7 +82,7 @@ acpi_system_read_dsdt(struct file *file, ACPI_FUNCTION_TRACE("acpi_system_read_dsdt"); - status = acpi_get_table(ACPI_TABLE_DSDT, 1, &dsdt); + status = acpi_get_table(ACPI_TABLE_ID_DSDT, 1, &dsdt); if (ACPI_FAILURE(status)) return_VALUE(-ENODEV); @@ -110,7 +110,7 @@ acpi_system_read_fadt(struct file *file, ACPI_FUNCTION_TRACE("acpi_system_read_fadt"); - status = acpi_get_table(ACPI_TABLE_FADT, 1, &fadt); + status = acpi_get_table(ACPI_TABLE_ID_FADT, 1, &fadt); if (ACPI_FAILURE(status)) return_VALUE(-ENODEV); diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 7f37c7cc5ef1..ed5e8816d83d 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -282,8 +282,8 @@ acpi_get_table_header_early(enum acpi_table_id id, /* Map the DSDT header via the pointer in the FADT */ if (id == ACPI_DSDT) { - struct fadt_descriptor_rev2 *fadt = - (struct fadt_descriptor_rev2 *)*header; + struct fadt_descriptor *fadt = + (struct fadt_descriptor *)*header; if (fadt->revision == 3 && fadt->Xdsdt) { *header = (void *)__acpi_map_table(fadt->Xdsdt, diff --git a/drivers/acpi/tables/tbconvrt.c b/drivers/acpi/tables/tbconvrt.c index 03b37d2223bc..d697fcb35d52 100644 --- a/drivers/acpi/tables/tbconvrt.c +++ b/drivers/acpi/tables/tbconvrt.c @@ -41,8 +41,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/actables.h> @@ -56,15 +54,15 @@ acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct, acpi_physical_address address); static void -acpi_tb_convert_fadt1(struct fadt_descriptor_rev2 *local_fadt, +acpi_tb_convert_fadt1(struct fadt_descriptor *local_fadt, struct fadt_descriptor_rev1 *original_fadt); static void -acpi_tb_convert_fadt2(struct fadt_descriptor_rev2 *local_fadt, - struct fadt_descriptor_rev2 *original_fadt); +acpi_tb_convert_fadt2(struct fadt_descriptor *local_fadt, + struct fadt_descriptor *original_fadt); u8 acpi_fadt_is_v1; -EXPORT_SYMBOL(acpi_fadt_is_v1); +ACPI_EXPORT_SYMBOL(acpi_fadt_is_v1) /******************************************************************************* * @@ -122,7 +120,7 @@ acpi_status acpi_tb_convert_to_xsdt(struct acpi_table_desc *table_info) { acpi_size table_size; u32 i; - XSDT_DESCRIPTOR *new_table; + struct xsdt_descriptor *new_table; ACPI_FUNCTION_ENTRY(); @@ -133,7 +131,7 @@ acpi_status acpi_tb_convert_to_xsdt(struct acpi_table_desc *table_info) /* Allocate an XSDT */ - new_table = ACPI_MEM_CALLOCATE(table_size); + new_table = ACPI_ALLOCATE_ZEROED(table_size); if (!new_table) { return (AE_NO_MEMORY); } @@ -147,17 +145,18 @@ acpi_status acpi_tb_convert_to_xsdt(struct acpi_table_desc *table_info) /* Copy the table pointers */ for (i = 0; i < acpi_gbl_rsdt_table_count; i++) { + /* RSDT pointers are 32 bits, XSDT pointers are 64 bits */ if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { ACPI_STORE_ADDRESS(new_table->table_offset_entry[i], (ACPI_CAST_PTR - (struct rsdt_descriptor_rev1, + (struct rsdt_descriptor, table_info->pointer))-> table_offset_entry[i]); } else { new_table->table_offset_entry[i] = - (ACPI_CAST_PTR(XSDT_DESCRIPTOR, + (ACPI_CAST_PTR(struct xsdt_descriptor, table_info->pointer))-> table_offset_entry[i]; } @@ -219,7 +218,7 @@ acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct, ******************************************************************************/ static void -acpi_tb_convert_fadt1(struct fadt_descriptor_rev2 *local_fadt, +acpi_tb_convert_fadt1(struct fadt_descriptor *local_fadt, struct fadt_descriptor_rev1 *original_fadt) { @@ -365,14 +364,13 @@ acpi_tb_convert_fadt1(struct fadt_descriptor_rev2 *local_fadt, ******************************************************************************/ static void -acpi_tb_convert_fadt2(struct fadt_descriptor_rev2 *local_fadt, - struct fadt_descriptor_rev2 *original_fadt) +acpi_tb_convert_fadt2(struct fadt_descriptor *local_fadt, + struct fadt_descriptor *original_fadt) { /* We have an ACPI 2.0 FADT but we must copy it to our local buffer */ - ACPI_MEMCPY(local_fadt, original_fadt, - sizeof(struct fadt_descriptor_rev2)); + ACPI_MEMCPY(local_fadt, original_fadt, sizeof(struct fadt_descriptor)); /* * "X" fields are optional extensions to the original V1.0 fields, so @@ -491,10 +489,10 @@ acpi_tb_convert_fadt2(struct fadt_descriptor_rev2 *local_fadt, acpi_status acpi_tb_convert_table_fadt(void) { - struct fadt_descriptor_rev2 *local_fadt; + struct fadt_descriptor *local_fadt; struct acpi_table_desc *table_desc; - ACPI_FUNCTION_TRACE("tb_convert_table_fadt"); + ACPI_FUNCTION_TRACE(tb_convert_table_fadt); /* * acpi_gbl_FADT is valid. Validate the FADT length. The table must be @@ -508,13 +506,14 @@ acpi_status acpi_tb_convert_table_fadt(void) /* Allocate buffer for the ACPI 2.0(+) FADT */ - local_fadt = ACPI_MEM_CALLOCATE(sizeof(struct fadt_descriptor_rev2)); + local_fadt = ACPI_ALLOCATE_ZEROED(sizeof(struct fadt_descriptor)); if (!local_fadt) { return_ACPI_STATUS(AE_NO_MEMORY); } if (acpi_gbl_FADT->revision >= FADT2_REVISION_ID) { - if (acpi_gbl_FADT->length < sizeof(struct fadt_descriptor_rev2)) { + if (acpi_gbl_FADT->length < sizeof(struct fadt_descriptor)) { + /* Length is too short to be a V2.0 table */ ACPI_WARNING((AE_INFO, @@ -538,11 +537,11 @@ acpi_status acpi_tb_convert_table_fadt(void) /* Global FADT pointer will point to the new common V2.0 FADT */ acpi_gbl_FADT = local_fadt; - acpi_gbl_FADT->length = sizeof(FADT_DESCRIPTOR); + acpi_gbl_FADT->length = sizeof(struct fadt_descriptor); /* Free the original table */ - table_desc = acpi_gbl_table_lists[ACPI_TABLE_FADT].next; + table_desc = acpi_gbl_table_lists[ACPI_TABLE_ID_FADT].next; acpi_tb_delete_single_table(table_desc); /* Install the new table */ @@ -550,7 +549,7 @@ acpi_status acpi_tb_convert_table_fadt(void) table_desc->pointer = ACPI_CAST_PTR(struct acpi_table_header, acpi_gbl_FADT); table_desc->allocation = ACPI_MEM_ALLOCATED; - table_desc->length = sizeof(struct fadt_descriptor_rev2); + table_desc->length = sizeof(struct fadt_descriptor); /* Dump the entire FADT */ @@ -580,7 +579,7 @@ acpi_status acpi_tb_convert_table_fadt(void) acpi_status acpi_tb_build_common_facs(struct acpi_table_desc *table_info) { - ACPI_FUNCTION_TRACE("tb_build_common_facs"); + ACPI_FUNCTION_TRACE(tb_build_common_facs); /* Absolute minimum length is 24, but the ACPI spec says 64 */ @@ -603,6 +602,7 @@ acpi_status acpi_tb_build_common_facs(struct acpi_table_desc *table_info) if ((acpi_gbl_RSDP->revision < 2) || (acpi_gbl_FACS->length < 32) || (!(acpi_gbl_FACS->xfirmware_waking_vector))) { + /* ACPI 1.0 FACS or short table or optional X_ field is zero */ acpi_gbl_common_fACS.firmware_waking_vector = ACPI_CAST_PTR(u64, diff --git a/drivers/acpi/tables/tbget.c b/drivers/acpi/tables/tbget.c index 09b4ee6dfd60..99eacceff563 100644 --- a/drivers/acpi/tables/tbget.c +++ b/drivers/acpi/tables/tbget.c @@ -78,7 +78,7 @@ acpi_tb_get_table(struct acpi_pointer *address, acpi_status status; struct acpi_table_header header; - ACPI_FUNCTION_TRACE("tb_get_table"); + ACPI_FUNCTION_TRACE(tb_get_table); /* Get the header in order to get signature and table size */ @@ -124,7 +124,7 @@ acpi_tb_get_table_header(struct acpi_pointer *address, acpi_status status = AE_OK; struct acpi_table_header *header = NULL; - ACPI_FUNCTION_TRACE("tb_get_table_header"); + ACPI_FUNCTION_TRACE(tb_get_table_header); /* * Flags contains the current processor mode (Virtual or Physical @@ -148,6 +148,10 @@ acpi_tb_get_table_header(struct acpi_pointer *address, sizeof(struct acpi_table_header), (void *)&header); if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, + "Could not map memory at %8.8X%8.8X for table header", + ACPI_FORMAT_UINT64(address->pointer. + physical))); return_ACPI_STATUS(status); } @@ -198,7 +202,7 @@ acpi_tb_get_table_body(struct acpi_pointer *address, { acpi_status status; - ACPI_FUNCTION_TRACE("tb_get_table_body"); + ACPI_FUNCTION_TRACE(tb_get_table_body); if (!table_info || !address) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -208,6 +212,7 @@ acpi_tb_get_table_body(struct acpi_pointer *address, status = acpi_tb_table_override(header, table_info); if (ACPI_SUCCESS(status)) { + /* Table was overridden by the host OS */ return_ACPI_STATUS(status); @@ -241,7 +246,7 @@ acpi_tb_table_override(struct acpi_table_header *header, acpi_status status; struct acpi_pointer address; - ACPI_FUNCTION_TRACE("tb_table_override"); + ACPI_FUNCTION_TRACE(tb_table_override); /* * The OSL will examine the header and decide whether to override this @@ -250,6 +255,7 @@ acpi_tb_table_override(struct acpi_table_header *header, */ status = acpi_os_table_override(header, &new_table); if (ACPI_FAILURE(status)) { + /* Some severe error from the OSL, but we basically ignore it */ ACPI_EXCEPTION((AE_INFO, status, @@ -258,6 +264,7 @@ acpi_tb_table_override(struct acpi_table_header *header, } if (!new_table) { + /* No table override */ return_ACPI_STATUS(AE_NO_ACPI_TABLES); @@ -311,7 +318,7 @@ acpi_tb_get_this_table(struct acpi_pointer *address, u8 allocation; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("tb_get_this_table"); + ACPI_FUNCTION_TRACE(tb_get_this_table); /* * Flags contains the current processor mode (Virtual or Physical @@ -323,7 +330,7 @@ acpi_tb_get_this_table(struct acpi_pointer *address, /* Pointer matches processor mode, copy the table to a new buffer */ - full_table = ACPI_MEM_ALLOCATE(header->length); + full_table = ACPI_ALLOCATE(header->length); if (!full_table) { ACPI_ERROR((AE_INFO, "Could not allocate table memory for [%4.4s] length %X", @@ -376,11 +383,12 @@ acpi_tb_get_this_table(struct acpi_pointer *address, * Validate checksum for _most_ tables, * even the ones whose signature we don't recognize */ - if (table_info->type != ACPI_TABLE_FACS) { + if (table_info->type != ACPI_TABLE_ID_FACS) { status = acpi_tb_verify_table_checksum(full_table); #if (!ACPI_CHECKSUM_ABORT) if (ACPI_FAILURE(status)) { + /* Ignore the error if configuration says so */ status = AE_OK; @@ -409,7 +417,7 @@ acpi_tb_get_this_table(struct acpi_pointer *address, * * PARAMETERS: table_type - one of the defined table types * Instance - Which table of this type - * table_ptr_loc - pointer to location to place the pointer for + * return_table - pointer to location to place the pointer for * return * * RETURN: Status @@ -420,57 +428,34 @@ acpi_tb_get_this_table(struct acpi_pointer *address, acpi_status acpi_tb_get_table_ptr(acpi_table_type table_type, - u32 instance, struct acpi_table_header **table_ptr_loc) + u32 instance, struct acpi_table_header **return_table) { struct acpi_table_desc *table_desc; u32 i; - ACPI_FUNCTION_TRACE("tb_get_table_ptr"); - - if (!acpi_gbl_DSDT) { - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } + ACPI_FUNCTION_TRACE(tb_get_table_ptr); - if (table_type > ACPI_TABLE_MAX) { + if (table_type > ACPI_TABLE_ID_MAX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } - /* - * For all table types (Single/Multiple), the first - * instance is always in the list head. - */ - if (instance == 1) { - /* Get the first */ - - *table_ptr_loc = NULL; - if (acpi_gbl_table_lists[table_type].next) { - *table_ptr_loc = - acpi_gbl_table_lists[table_type].next->pointer; - } - return_ACPI_STATUS(AE_OK); - } - - /* Check for instance out of range */ + /* Check for instance out of range of the current table count */ if (instance > acpi_gbl_table_lists[table_type].count) { return_ACPI_STATUS(AE_NOT_EXIST); } - /* Walk the list to get the desired table - * Since the if (Instance == 1) check above checked for the - * first table, setting table_desc equal to the .Next member - * is actually pointing to the second table. Therefore, we - * need to walk from the 2nd table until we reach the Instance - * that the user is looking for and return its table pointer. + /* + * Walk the list to get the desired table + * Note: Instance is one-based */ table_desc = acpi_gbl_table_lists[table_type].next; - for (i = 2; i < instance; i++) { + for (i = 1; i < instance; i++) { table_desc = table_desc->next; } /* We are now pointing to the requested table's descriptor */ - *table_ptr_loc = table_desc->pointer; - + *return_table = table_desc->pointer; return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/tables/tbgetall.c b/drivers/acpi/tables/tbgetall.c index 134e5dce0bc1..ad982112e4c6 100644 --- a/drivers/acpi/tables/tbgetall.c +++ b/drivers/acpi/tables/tbgetall.c @@ -77,7 +77,7 @@ acpi_tb_get_primary_table(struct acpi_pointer *address, acpi_status status; struct acpi_table_header header; - ACPI_FUNCTION_TRACE("tb_get_primary_table"); + ACPI_FUNCTION_TRACE(tb_get_primary_table); /* Ignore a NULL address in the RSDT */ @@ -140,7 +140,7 @@ acpi_tb_get_secondary_table(struct acpi_pointer *address, acpi_status status; struct acpi_table_header header; - ACPI_FUNCTION_TRACE_STR("tb_get_secondary_table", signature); + ACPI_FUNCTION_TRACE_STR(tb_get_secondary_table, signature); /* Get the header in order to match the signature */ @@ -151,7 +151,7 @@ acpi_tb_get_secondary_table(struct acpi_pointer *address, /* Signature must match request */ - if (ACPI_STRNCMP(header.signature, signature, ACPI_NAME_SIZE)) { + if (!ACPI_COMPARE_NAME(header.signature, signature)) { ACPI_ERROR((AE_INFO, "Incorrect table signature - wanted [%s] found [%4.4s]", signature, header.signature)); @@ -207,7 +207,7 @@ acpi_status acpi_tb_get_required_tables(void) struct acpi_table_desc table_info; struct acpi_pointer address; - ACPI_FUNCTION_TRACE("tb_get_required_tables"); + ACPI_FUNCTION_TRACE(tb_get_required_tables); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%d ACPI tables in RSDT\n", acpi_gbl_rsdt_table_count)); @@ -223,6 +223,7 @@ acpi_status acpi_tb_get_required_tables(void) * any SSDTs. */ for (i = 0; i < acpi_gbl_rsdt_table_count; i++) { + /* Get the table address from the common internal XSDT */ address.pointer.value = acpi_gbl_XSDT->table_offset_entry[i]; @@ -305,6 +306,6 @@ acpi_status acpi_tb_get_required_tables(void) /* Always delete the RSDP mapping, we are done with it */ - acpi_tb_delete_tables_by_type(ACPI_TABLE_RSDP); + acpi_tb_delete_tables_by_type(ACPI_TABLE_ID_RSDP); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c index 7ffd0fddb4e5..7ca2df75bb11 100644 --- a/drivers/acpi/tables/tbinstal.c +++ b/drivers/acpi/tables/tbinstal.c @@ -73,17 +73,18 @@ acpi_tb_match_signature(char *signature, { acpi_native_uint i; - ACPI_FUNCTION_TRACE("tb_match_signature"); + ACPI_FUNCTION_TRACE(tb_match_signature); /* Search for a signature match among the known table types */ - for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) { + for (i = 0; i < (ACPI_TABLE_ID_MAX + 1); i++) { if (!(acpi_gbl_table_data[i].flags & search_type)) { continue; } if (!ACPI_STRNCMP(signature, acpi_gbl_table_data[i].signature, acpi_gbl_table_data[i].sig_length)) { + /* Found a signature match, return index if requested */ if (table_info) { @@ -122,7 +123,7 @@ acpi_status acpi_tb_install_table(struct acpi_table_desc *table_info) { acpi_status status; - ACPI_FUNCTION_TRACE("tb_install_table"); + ACPI_FUNCTION_TRACE(tb_install_table); /* Lock tables while installing */ @@ -187,7 +188,7 @@ acpi_tb_recognize_table(struct acpi_table_desc *table_info, u8 search_type) struct acpi_table_header *table_header; acpi_status status; - ACPI_FUNCTION_TRACE("tb_recognize_table"); + ACPI_FUNCTION_TRACE(tb_recognize_table); /* Ensure that we have a valid table pointer */ @@ -218,7 +219,6 @@ acpi_tb_recognize_table(struct acpi_table_desc *table_info, u8 search_type) /* Return the table type and length via the info struct */ table_info->length = (acpi_size) table_header->length; - return_ACPI_STATUS(status); } @@ -243,11 +243,11 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type, struct acpi_table_desc *table_desc; acpi_status status; - ACPI_FUNCTION_TRACE_U32("tb_init_table_descriptor", table_type); + ACPI_FUNCTION_TRACE_U32(tb_init_table_descriptor, table_type); /* Allocate a descriptor for this table */ - table_desc = ACPI_MEM_CALLOCATE(sizeof(struct acpi_table_desc)); + table_desc = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_table_desc)); if (!table_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -274,7 +274,7 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type, * at this location, so return an error. */ if (list_head->next) { - ACPI_MEM_FREE(table_desc); + ACPI_FREE(table_desc); return_ACPI_STATUS(AE_ALREADY_EXISTS); } @@ -312,15 +312,14 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type, /* Finish initialization of the table descriptor */ + table_desc->loaded_into_namespace = FALSE; table_desc->type = (u8) table_type; table_desc->pointer = table_info->pointer; table_desc->length = table_info->length; table_desc->allocation = table_info->allocation; table_desc->aml_start = (u8 *) (table_desc->pointer + 1), - table_desc->aml_length = (u32) (table_desc->length - - (u32) sizeof(struct - acpi_table_header)); - table_desc->loaded_into_namespace = FALSE; + table_desc->aml_length = (u32) + (table_desc->length - (u32) sizeof(struct acpi_table_header)); /* * Set the appropriate global pointer (if there is one) to point to the @@ -335,7 +334,6 @@ acpi_tb_init_table_descriptor(acpi_table_type table_type, table_info->owner_id = table_desc->owner_id; table_info->installed_desc = table_desc; - return_ACPI_STATUS(AE_OK); } @@ -359,7 +357,7 @@ void acpi_tb_delete_all_tables(void) * Free memory allocated for ACPI tables * Memory can either be mapped or allocated */ - for (type = 0; type < NUM_ACPI_TABLE_TYPES; type++) { + for (type = 0; type < (ACPI_TABLE_ID_MAX + 1); type++) { acpi_tb_delete_tables_by_type(type); } } @@ -383,9 +381,9 @@ void acpi_tb_delete_tables_by_type(acpi_table_type type) u32 count; u32 i; - ACPI_FUNCTION_TRACE_U32("tb_delete_tables_by_type", type); + ACPI_FUNCTION_TRACE_U32(tb_delete_tables_by_type, type); - if (type > ACPI_TABLE_MAX) { + if (type > ACPI_TABLE_ID_MAX) { return_VOID; } @@ -396,28 +394,28 @@ void acpi_tb_delete_tables_by_type(acpi_table_type type) /* Clear the appropriate "typed" global table pointer */ switch (type) { - case ACPI_TABLE_RSDP: + case ACPI_TABLE_ID_RSDP: acpi_gbl_RSDP = NULL; break; - case ACPI_TABLE_DSDT: + case ACPI_TABLE_ID_DSDT: acpi_gbl_DSDT = NULL; break; - case ACPI_TABLE_FADT: + case ACPI_TABLE_ID_FADT: acpi_gbl_FADT = NULL; break; - case ACPI_TABLE_FACS: + case ACPI_TABLE_ID_FACS: acpi_gbl_FACS = NULL; break; - case ACPI_TABLE_XSDT: + case ACPI_TABLE_ID_XSDT: acpi_gbl_XSDT = NULL; break; - case ACPI_TABLE_SSDT: - case ACPI_TABLE_PSDT: + case ACPI_TABLE_ID_SSDT: + case ACPI_TABLE_ID_PSDT: default: break; } @@ -471,7 +469,7 @@ void acpi_tb_delete_single_table(struct acpi_table_desc *table_desc) case ACPI_MEM_ALLOCATED: - ACPI_MEM_FREE(table_desc->pointer); + ACPI_FREE(table_desc->pointer); break; case ACPI_MEM_MAPPED: @@ -503,7 +501,7 @@ struct acpi_table_desc *acpi_tb_uninstall_table(struct acpi_table_desc { struct acpi_table_desc *next_desc; - ACPI_FUNCTION_TRACE_PTR("tb_uninstall_table", table_desc); + ACPI_FUNCTION_TRACE_PTR(tb_uninstall_table, table_desc); if (!table_desc) { return_PTR(NULL); @@ -530,7 +528,7 @@ struct acpi_table_desc *acpi_tb_uninstall_table(struct acpi_table_desc /* Free the table descriptor */ next_desc = table_desc->next; - ACPI_MEM_FREE(table_desc); + ACPI_FREE(table_desc); /* Return pointer to the next descriptor */ diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c index 4d308220225d..abcb08c2592a 100644 --- a/drivers/acpi/tables/tbrsdt.c +++ b/drivers/acpi/tables/tbrsdt.c @@ -64,7 +64,7 @@ acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address) acpi_status status; struct rsdp_descriptor *rsdp; - ACPI_FUNCTION_TRACE("tb_verify_rsdp"); + ACPI_FUNCTION_TRACE(tb_verify_rsdp); switch (address->pointer_type) { case ACPI_LOGICAL_POINTER: @@ -78,7 +78,7 @@ acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address) */ status = acpi_os_map_memory(address->pointer.physical, sizeof(struct rsdp_descriptor), - (void *)&rsdp); + ACPI_CAST_PTR(void, &rsdp)); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -95,15 +95,20 @@ acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address) goto cleanup; } - /* The RSDP supplied is OK */ + /* RSDP is ok. Init the table info */ table_info.pointer = ACPI_CAST_PTR(struct acpi_table_header, rsdp); table_info.length = sizeof(struct rsdp_descriptor); - table_info.allocation = ACPI_MEM_MAPPED; + + if (address->pointer_type == ACPI_PHYSICAL_POINTER) { + table_info.allocation = ACPI_MEM_MAPPED; + } else { + table_info.allocation = ACPI_MEM_NOT_ALLOCATED; + } /* Save the table pointers and allocation info */ - status = acpi_tb_init_table_descriptor(ACPI_TABLE_RSDP, &table_info); + status = acpi_tb_init_table_descriptor(ACPI_TABLE_ID_RSDP, &table_info); if (ACPI_FAILURE(status)) { goto cleanup; } @@ -174,22 +179,20 @@ void acpi_tb_get_rsdt_address(struct acpi_pointer *out_address) acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr) { - int no_match; + char *signature; ACPI_FUNCTION_ENTRY(); - /* - * Search for appropriate signature, RSDT or XSDT - */ + /* Search for appropriate signature, RSDT or XSDT */ + if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { - no_match = ACPI_STRNCMP((char *)table_ptr, RSDT_SIG, - sizeof(RSDT_SIG) - 1); + signature = RSDT_SIG; } else { - no_match = ACPI_STRNCMP((char *)table_ptr, XSDT_SIG, - sizeof(XSDT_SIG) - 1); + signature = XSDT_SIG; } - if (no_match) { + if (!ACPI_COMPARE_NAME(table_ptr->signature, signature)) { + /* Invalid RSDT or XSDT signature */ ACPI_ERROR((AE_INFO, @@ -198,10 +201,8 @@ acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr) ACPI_DUMP_BUFFER(acpi_gbl_RSDP, 20); ACPI_ERROR((AE_INFO, - "RSDT/XSDT signature at %X (%p) is invalid", - acpi_gbl_RSDP->rsdt_physical_address, - (void *)(acpi_native_uint) acpi_gbl_RSDP-> - rsdt_physical_address)); + "RSDT/XSDT signature at %X is invalid", + acpi_gbl_RSDP->rsdt_physical_address)); if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { ACPI_ERROR((AE_INFO, "Looking for RSDT")); @@ -234,13 +235,13 @@ acpi_status acpi_tb_get_table_rsdt(void) acpi_status status; struct acpi_pointer address; - ACPI_FUNCTION_TRACE("tb_get_table_rsdt"); + ACPI_FUNCTION_TRACE(tb_get_table_rsdt); /* Get the RSDT/XSDT via the RSDP */ acpi_tb_get_rsdt_address(&address); - table_info.type = ACPI_TABLE_XSDT; + table_info.type = ACPI_TABLE_ID_XSDT; status = acpi_tb_get_table(&address, &table_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, @@ -274,12 +275,13 @@ acpi_status acpi_tb_get_table_rsdt(void) /* Save the table pointers and allocation info */ - status = acpi_tb_init_table_descriptor(ACPI_TABLE_XSDT, &table_info); + status = acpi_tb_init_table_descriptor(ACPI_TABLE_ID_XSDT, &table_info); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - acpi_gbl_XSDT = ACPI_CAST_PTR(XSDT_DESCRIPTOR, table_info.pointer); + acpi_gbl_XSDT = + ACPI_CAST_PTR(struct xsdt_descriptor, table_info.pointer); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "XSDT located at %p\n", acpi_gbl_XSDT)); return_ACPI_STATUS(status); diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c index bc571592f087..209a401801e3 100644 --- a/drivers/acpi/tables/tbutils.c +++ b/drivers/acpi/tables/tbutils.c @@ -71,7 +71,7 @@ acpi_status acpi_tb_is_table_installed(struct acpi_table_desc *new_table_desc) { struct acpi_table_desc *table_desc; - ACPI_FUNCTION_TRACE("tb_is_table_installed"); + ACPI_FUNCTION_TRACE(tb_is_table_installed); /* Get the list descriptor and first table descriptor */ @@ -96,10 +96,11 @@ acpi_status acpi_tb_is_table_installed(struct acpi_table_desc *new_table_desc) (!ACPI_MEMCMP (table_desc->pointer, new_table_desc->pointer, new_table_desc->pointer->length))) { + /* Match: this table is already installed */ ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "Table [%4.4s] already installed: Rev %X oem_table_id [%8.8s]\n", + "Table [%4.4s] already installed: Rev %X OemTableId [%8.8s]\n", new_table_desc->pointer->signature, new_table_desc->pointer->revision, new_table_desc->pointer-> @@ -159,12 +160,8 @@ acpi_tb_validate_table_header(struct acpi_table_header *table_header) ACPI_MOVE_32_TO_32(&signature, table_header->signature); if (!acpi_ut_valid_acpi_name(signature)) { - ACPI_ERROR((AE_INFO, - "Table signature at %p [%p] has invalid characters", - table_header, &signature)); - - ACPI_WARNING((AE_INFO, "Invalid table signature found: [%4.4s]", - ACPI_CAST_PTR(char, &signature))); + ACPI_ERROR((AE_INFO, "Invalid table signature 0x%8.8X", + signature)); ACPI_DUMP_BUFFER(table_header, sizeof(struct acpi_table_header)); @@ -175,12 +172,9 @@ acpi_tb_validate_table_header(struct acpi_table_header *table_header) if (table_header->length < sizeof(struct acpi_table_header)) { ACPI_ERROR((AE_INFO, - "Invalid length in table header %p name %4.4s", - table_header, (char *)&signature)); - - ACPI_WARNING((AE_INFO, - "Invalid table header length (0x%X) found", - (u32) table_header->length)); + "Invalid length 0x%X in table with signature %4.4s", + (u32) table_header->length, + ACPI_CAST_PTR(char, &signature))); ACPI_DUMP_BUFFER(table_header, sizeof(struct acpi_table_header)); @@ -192,72 +186,119 @@ acpi_tb_validate_table_header(struct acpi_table_header *table_header) /******************************************************************************* * - * FUNCTION: acpi_tb_verify_table_checksum + * FUNCTION: acpi_tb_sum_table * - * PARAMETERS: *table_header - ACPI table to verify + * PARAMETERS: Buffer - Buffer to sum + * Length - Size of the buffer * - * RETURN: 8 bit checksum of table + * RETURN: 8 bit sum of buffer * - * DESCRIPTION: Does an 8 bit checksum of table and returns status. A correct - * table should have a checksum of 0. + * DESCRIPTION: Computes an 8 bit sum of the buffer(length) and returns it. * ******************************************************************************/ -acpi_status -acpi_tb_verify_table_checksum(struct acpi_table_header * table_header) +u8 acpi_tb_sum_table(void *buffer, u32 length) +{ + acpi_native_uint i; + u8 sum = 0; + + if (!buffer || !length) { + return (0); + } + + for (i = 0; i < length; i++) { + sum = (u8) (sum + ((u8 *) buffer)[i]); + } + return (sum); +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_generate_checksum + * + * PARAMETERS: Table - Pointer to a valid ACPI table (with a + * standard ACPI header) + * + * RETURN: 8 bit checksum of buffer + * + * DESCRIPTION: Computes an 8 bit checksum of the table. + * + ******************************************************************************/ + +u8 acpi_tb_generate_checksum(struct acpi_table_header * table) { u8 checksum; - acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("tb_verify_table_checksum"); + /* Sum the entire table as-is */ - /* Compute the checksum on the table */ + checksum = acpi_tb_sum_table(table, table->length); - checksum = - acpi_tb_generate_checksum(table_header, table_header->length); + /* Subtract off the existing checksum value in the table */ - /* Return the appropriate exception */ + checksum = (u8) (checksum - table->checksum); - if (checksum) { - ACPI_WARNING((AE_INFO, - "Invalid checksum in table [%4.4s] (%02X, sum %02X is not zero)", - table_header->signature, - (u32) table_header->checksum, (u32) checksum)); + /* Compute the final checksum */ - status = AE_BAD_CHECKSUM; - } - return_ACPI_STATUS(status); + checksum = (u8) (0 - checksum); + return (checksum); } /******************************************************************************* * - * FUNCTION: acpi_tb_generate_checksum + * FUNCTION: acpi_tb_set_checksum * - * PARAMETERS: Buffer - Buffer to checksum - * Length - Size of the buffer + * PARAMETERS: Table - Pointer to a valid ACPI table (with a + * standard ACPI header) * - * RETURN: 8 bit checksum of buffer + * RETURN: None. Sets the table checksum field * - * DESCRIPTION: Computes an 8 bit checksum of the buffer(length) and returns it. + * DESCRIPTION: Computes an 8 bit checksum of the table and inserts the + * checksum into the table header. * ******************************************************************************/ -u8 acpi_tb_generate_checksum(void *buffer, u32 length) +void acpi_tb_set_checksum(struct acpi_table_header *table) { - u8 *end_buffer; - u8 *rover; - u8 sum = 0; - if (buffer && length) { - /* Buffer and Length are valid */ + table->checksum = acpi_tb_generate_checksum(table); +} - end_buffer = ACPI_ADD_PTR(u8, buffer, length); +/******************************************************************************* + * + * FUNCTION: acpi_tb_verify_table_checksum + * + * PARAMETERS: *table_header - ACPI table to verify + * + * RETURN: 8 bit checksum of table + * + * DESCRIPTION: Generates an 8 bit checksum of table and returns and compares + * it to the existing checksum value. + * + ******************************************************************************/ - for (rover = buffer; rover < end_buffer; rover++) { - sum = (u8) (sum + *rover); - } +acpi_status +acpi_tb_verify_table_checksum(struct acpi_table_header *table_header) +{ + u8 checksum; + + ACPI_FUNCTION_TRACE(tb_verify_table_checksum); + + /* Compute the checksum on the table */ + + checksum = acpi_tb_generate_checksum(table_header); + + /* Checksum ok? */ + + if (checksum == table_header->checksum) { + return_ACPI_STATUS(AE_OK); } - return (sum); + + ACPI_WARNING((AE_INFO, + "Incorrect checksum in table [%4.4s] - is %2.2X, should be %2.2X", + table_header->signature, table_header->checksum, + checksum)); + + return_ACPI_STATUS(AE_BAD_CHECKSUM); } #ifdef ACPI_OBSOLETE_FUNCTIONS @@ -276,12 +317,12 @@ u8 acpi_tb_generate_checksum(void *buffer, u32 length) acpi_status acpi_tb_handle_to_object(u16 table_id, - struct acpi_table_desc ** return_table_desc) + struct acpi_table_desc **return_table_desc) { u32 i; struct acpi_table_desc *table_desc; - ACPI_FUNCTION_NAME("tb_handle_to_object"); + ACPI_FUNCTION_NAME(tb_handle_to_object); for (i = 0; i < ACPI_TABLE_MAX; i++) { table_desc = acpi_gbl_table_lists[i].next; @@ -295,7 +336,7 @@ acpi_tb_handle_to_object(u16 table_id, } } - ACPI_ERROR((AE_INFO, "table_id=%X does not exist", table_id)); + ACPI_ERROR((AE_INFO, "TableId=%X does not exist", table_id)); return (AE_BAD_PARAMETER); } #endif diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c index 9fe53c9d5b9a..4e91f2984815 100644 --- a/drivers/acpi/tables/tbxface.c +++ b/drivers/acpi/tables/tbxface.c @@ -42,8 +42,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acnamesp.h> #include <acpi/actables.h> @@ -68,7 +66,7 @@ acpi_status acpi_load_tables(void) struct acpi_pointer rsdp_address; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_load_tables"); + ACPI_FUNCTION_TRACE(acpi_load_tables); /* Get the RSDP */ @@ -123,6 +121,8 @@ acpi_status acpi_load_tables(void) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_load_tables) + #ifdef ACPI_FUTURE_USAGE /******************************************************************************* * @@ -139,14 +139,13 @@ acpi_status acpi_load_tables(void) * is determined that the table is invalid, the call will fail. * ******************************************************************************/ - acpi_status acpi_load_table(struct acpi_table_header *table_ptr) { acpi_status status; struct acpi_table_desc table_info; struct acpi_pointer address; - ACPI_FUNCTION_TRACE("acpi_load_table"); + ACPI_FUNCTION_TRACE(acpi_load_table); if (!table_ptr) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -174,6 +173,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) status = acpi_tb_install_table(&table_info); if (ACPI_FAILURE(status)) { if (status == AE_ALREADY_EXISTS) { + /* Table already exists, no error */ status = AE_OK; @@ -188,12 +188,12 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) /* Convert the table to common format if necessary */ switch (table_info.type) { - case ACPI_TABLE_FADT: + case ACPI_TABLE_ID_FADT: status = acpi_tb_convert_table_fadt(); break; - case ACPI_TABLE_FACS: + case ACPI_TABLE_ID_FACS: status = acpi_tb_build_common_facs(&table_info); break; @@ -208,6 +208,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) } if (ACPI_FAILURE(status)) { + /* Uninstall table and free the buffer */ (void)acpi_tb_uninstall_table(table_info.installed_desc); @@ -216,6 +217,8 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_load_table) + /******************************************************************************* * * FUNCTION: acpi_unload_table @@ -227,16 +230,15 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) * DESCRIPTION: This routine is used to force the unload of a table * ******************************************************************************/ - acpi_status acpi_unload_table(acpi_table_type table_type) { struct acpi_table_desc *table_desc; - ACPI_FUNCTION_TRACE("acpi_unload_table"); + ACPI_FUNCTION_TRACE(acpi_unload_table); /* Parameter validation */ - if (table_type > ACPI_TABLE_MAX) { + if (table_type > ACPI_TABLE_ID_MAX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -261,6 +263,8 @@ acpi_status acpi_unload_table(acpi_table_type table_type) return_ACPI_STATUS(AE_OK); } +ACPI_EXPORT_SYMBOL(acpi_unload_table) + /******************************************************************************* * * FUNCTION: acpi_get_table_header @@ -281,7 +285,6 @@ acpi_status acpi_unload_table(acpi_table_type table_type) * have a standard header and is fixed length. * ******************************************************************************/ - acpi_status acpi_get_table_header(acpi_table_type table_type, u32 instance, struct acpi_table_header *out_table_header) @@ -289,16 +292,16 @@ acpi_get_table_header(acpi_table_type table_type, struct acpi_table_header *tbl_ptr; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_get_table_header"); + ACPI_FUNCTION_TRACE(acpi_get_table_header); if ((instance == 0) || - (table_type == ACPI_TABLE_RSDP) || (!out_table_header)) { + (table_type == ACPI_TABLE_ID_RSDP) || (!out_table_header)) { return_ACPI_STATUS(AE_BAD_PARAMETER); } /* Check the table type and instance */ - if ((table_type > ACPI_TABLE_MAX) || + if ((table_type > ACPI_TABLE_ID_MAX) || (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) && instance > 1)) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -325,6 +328,7 @@ acpi_get_table_header(acpi_table_type table_type, return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_get_table_header) #endif /* ACPI_FUTURE_USAGE */ /******************************************************************************* @@ -349,7 +353,6 @@ acpi_get_table_header(acpi_table_type table_type, * a complete table including the header. * ******************************************************************************/ - acpi_status acpi_get_table(acpi_table_type table_type, u32 instance, struct acpi_buffer *ret_buffer) @@ -358,7 +361,7 @@ acpi_get_table(acpi_table_type table_type, acpi_status status; acpi_size table_length; - ACPI_FUNCTION_TRACE("acpi_get_table"); + ACPI_FUNCTION_TRACE(acpi_get_table); /* Parameter validation */ @@ -373,7 +376,7 @@ acpi_get_table(acpi_table_type table_type, /* Check the table type and instance */ - if ((table_type > ACPI_TABLE_MAX) || + if ((table_type > ACPI_TABLE_ID_MAX) || (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) && instance > 1)) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -396,7 +399,8 @@ acpi_get_table(acpi_table_type table_type, /* Get the table length */ - if (table_type == ACPI_TABLE_RSDP) { + if (table_type == ACPI_TABLE_ID_RSDP) { + /* RSD PTR is the only "table" without a header */ table_length = sizeof(struct rsdp_descriptor); @@ -417,4 +421,4 @@ acpi_get_table(acpi_table_type table_type, return_ACPI_STATUS(AE_OK); } -EXPORT_SYMBOL(acpi_get_table); +ACPI_EXPORT_SYMBOL(acpi_get_table) diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c index a62db6af83c9..da2648bbdbc0 100644 --- a/drivers/acpi/tables/tbxfroot.c +++ b/drivers/acpi/tables/tbxfroot.c @@ -41,8 +41,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/actables.h> @@ -75,6 +73,7 @@ acpi_status acpi_tb_validate_rsdp(struct rsdp_descriptor *rsdp) * The signature and checksum must both be correct */ if (ACPI_STRNCMP((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0) { + /* Nope, BAD Signature */ return (AE_BAD_SIGNATURE); @@ -82,15 +81,14 @@ acpi_status acpi_tb_validate_rsdp(struct rsdp_descriptor *rsdp) /* Check the standard checksum */ - if (acpi_tb_generate_checksum(rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) { + if (acpi_tb_sum_table(rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) { return (AE_BAD_CHECKSUM); } /* Check extended checksum if table version >= 2 */ if ((rsdp->revision >= 2) && - (acpi_tb_generate_checksum(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != - 0)) { + (acpi_tb_sum_table(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) { return (AE_BAD_CHECKSUM); } @@ -121,7 +119,7 @@ acpi_tb_find_table(char *signature, acpi_status status; struct acpi_table_header *table; - ACPI_FUNCTION_TRACE("tb_find_table"); + ACPI_FUNCTION_TRACE(tb_find_table); /* Validate string lengths */ @@ -131,7 +129,7 @@ acpi_tb_find_table(char *signature, return_ACPI_STATUS(AE_AML_STRING_LIMIT); } - if (!ACPI_STRNCMP(signature, DSDT_SIG, ACPI_NAME_SIZE)) { + if (ACPI_COMPARE_NAME(signature, DSDT_SIG)) { /* * The DSDT pointer is contained in the FADT, not the RSDT. * This code should suffice, because the only code that would perform @@ -156,10 +154,12 @@ acpi_tb_find_table(char *signature, /* Check oem_id and oem_table_id */ - if ((oem_id[0] && ACPI_STRNCMP(oem_id, table->oem_id, - sizeof(table->oem_id))) || - (oem_table_id[0] && ACPI_STRNCMP(oem_table_id, table->oem_table_id, - sizeof(table->oem_table_id)))) { + if ((oem_id[0] && + ACPI_STRNCMP(oem_id, table->oem_id, + sizeof(table->oem_id))) || + (oem_table_id[0] && + ACPI_STRNCMP(oem_table_id, table->oem_table_id, + sizeof(table->oem_table_id)))) { return_ACPI_STATUS(AE_AML_NAME_NOT_FOUND); } @@ -203,7 +203,7 @@ acpi_get_firmware_table(acpi_string signature, u32 i; u32 j; - ACPI_FUNCTION_TRACE("acpi_get_firmware_table"); + ACPI_FUNCTION_TRACE(acpi_get_firmware_table); /* * Ensure that at least the table manager is initialized. We don't @@ -217,6 +217,7 @@ acpi_get_firmware_table(acpi_string signature, /* Ensure that we have a RSDP */ if (!acpi_gbl_RSDP) { + /* Get the RSDP */ status = acpi_os_get_root_pointer(flags, &address); @@ -261,7 +262,7 @@ acpi_get_firmware_table(acpi_string signature, /* Get and validate the RSDT */ - rsdt_info = ACPI_MEM_CALLOCATE(sizeof(struct acpi_table_desc)); + rsdt_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_table_desc)); if (!rsdt_info) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -278,13 +279,13 @@ acpi_get_firmware_table(acpi_string signature, /* Allocate a scratch table header and table descriptor */ - header = ACPI_MEM_ALLOCATE(sizeof(struct acpi_table_header)); + header = ACPI_ALLOCATE(sizeof(struct acpi_table_header)); if (!header) { status = AE_NO_MEMORY; goto cleanup; } - table_info = ACPI_MEM_ALLOCATE(sizeof(struct acpi_table_desc)); + table_info = ACPI_ALLOCATE(sizeof(struct acpi_table_desc)); if (!table_info) { status = AE_NO_MEMORY; goto cleanup; @@ -308,12 +309,12 @@ acpi_get_firmware_table(acpi_string signature, if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { address.pointer.value = (ACPI_CAST_PTR - (RSDT_DESCRIPTOR, + (struct rsdt_descriptor, rsdt_info->pointer))->table_offset_entry[i]; } else { address.pointer.value = (ACPI_CAST_PTR - (XSDT_DESCRIPTOR, + (struct xsdt_descriptor, rsdt_info->pointer))->table_offset_entry[i]; } @@ -326,11 +327,13 @@ acpi_get_firmware_table(acpi_string signature, /* Compare table signatures and table instance */ - if (!ACPI_STRNCMP(header->signature, signature, ACPI_NAME_SIZE)) { + if (ACPI_COMPARE_NAME(header->signature, signature)) { + /* An instance of the table was found */ j++; if (j >= instance) { + /* Found the correct instance, get the entire table */ status = @@ -355,23 +358,21 @@ acpi_get_firmware_table(acpi_string signature, acpi_os_unmap_memory(rsdt_info->pointer, (acpi_size) rsdt_info->pointer->length); } - ACPI_MEM_FREE(rsdt_info); + ACPI_FREE(rsdt_info); if (header) { - ACPI_MEM_FREE(header); + ACPI_FREE(header); } if (table_info) { - ACPI_MEM_FREE(table_info); + ACPI_FREE(table_info); } return_ACPI_STATUS(status); } -EXPORT_SYMBOL(acpi_get_firmware_table); +ACPI_EXPORT_SYMBOL(acpi_get_firmware_table) /* TBD: Move to a new file */ - #if ACPI_MACHINE_WIDTH != 16 - /******************************************************************************* * * FUNCTION: acpi_find_root_pointer @@ -384,13 +385,12 @@ EXPORT_SYMBOL(acpi_get_firmware_table); * DESCRIPTION: Find the RSDP * ******************************************************************************/ - acpi_status acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address) { struct acpi_table_desc table_info; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_find_root_pointer"); + ACPI_FUNCTION_TRACE(acpi_find_root_pointer); /* Get the RSDP */ @@ -407,6 +407,8 @@ acpi_status acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address) return_ACPI_STATUS(AE_OK); } +ACPI_EXPORT_SYMBOL(acpi_find_root_pointer) + /******************************************************************************* * * FUNCTION: acpi_tb_scan_memory_for_rsdp @@ -419,14 +421,13 @@ acpi_status acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address) * DESCRIPTION: Search a block of memory for the RSDP signature * ******************************************************************************/ - static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length) { acpi_status status; u8 *mem_rover; u8 *end_address; - ACPI_FUNCTION_TRACE("tb_scan_memory_for_rsdp"); + ACPI_FUNCTION_TRACE(tb_scan_memory_for_rsdp); end_address = start_address + length; @@ -434,12 +435,14 @@ static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length) for (mem_rover = start_address; mem_rover < end_address; mem_rover += ACPI_RSDP_SCAN_STEP) { + /* The RSDP signature and checksum must both be correct */ status = acpi_tb_validate_rsdp(ACPI_CAST_PTR (struct rsdp_descriptor, mem_rover)); if (ACPI_SUCCESS(status)) { + /* Sig and checksum valid, we have found a real RSDP */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, @@ -469,10 +472,10 @@ static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length) * * RETURN: Status, RSDP physical address * - * DESCRIPTION: search lower 1_mbyte of memory for the root system descriptor + * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor * pointer structure. If it is found, set *RSDP to point to it. * - * NOTE1: The RSDp must be either in the first 1_k of the Extended + * NOTE1: The RSDP must be either in the first 1_k of the Extended * BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.) * Only a 32-bit physical address is necessary. * @@ -489,12 +492,13 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags) u32 physical_address; acpi_status status; - ACPI_FUNCTION_TRACE("tb_find_rsdp"); + ACPI_FUNCTION_TRACE(tb_find_rsdp); /* * Scan supports either logical addressing or physical addressing */ if ((flags & ACPI_MEMORY_MODE) == ACPI_LOGICAL_ADDRESSING) { + /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */ status = acpi_os_map_memory((acpi_physical_address) @@ -521,7 +525,7 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags) if (physical_address > 0x400) { /* - * 1b) Search EBDA paragraphs (EBDa is required to be a + * 1b) Search EBDA paragraphs (EBDA is required to be a * minimum of 1_k length) */ status = acpi_os_map_memory((acpi_physical_address) @@ -542,10 +546,11 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags) acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE); if (mem_rover) { + /* Return the physical address */ physical_address += - ACPI_PTR_DIFF(mem_rover, table_ptr); + (u32) ACPI_PTR_DIFF(mem_rover, table_ptr); table_info->physical_address = (acpi_physical_address) physical_address; @@ -576,11 +581,12 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags) acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE); if (mem_rover) { + /* Return the physical address */ - physical_address = - ACPI_HI_RSDP_WINDOW_BASE + ACPI_PTR_DIFF(mem_rover, - table_ptr); + physical_address = (u32) + (ACPI_HI_RSDP_WINDOW_BASE + + ACPI_PTR_DIFF(mem_rover, table_ptr)); table_info->physical_address = (acpi_physical_address) physical_address; @@ -601,7 +607,7 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags) if (physical_address > 0x400) { /* - * 1b) Search EBDA paragraphs (EBDa is required to be a minimum of + * 1b) Search EBDA paragraphs (EBDA is required to be a minimum of * 1_k length) */ mem_rover = @@ -609,6 +615,7 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags) (physical_address), ACPI_EBDA_WINDOW_SIZE); if (mem_rover) { + /* Return the physical address */ table_info->physical_address = @@ -624,6 +631,7 @@ acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags) (ACPI_HI_RSDP_WINDOW_BASE), ACPI_HI_RSDP_WINDOW_SIZE); if (mem_rover) { + /* Found it, return the physical address */ table_info->physical_address = diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 19f3ea48475e..e7fe3a14fdaf 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -82,6 +82,7 @@ MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.\n"); static int acpi_thermal_add(struct acpi_device *device); static int acpi_thermal_remove(struct acpi_device *device, int type); +static int acpi_thermal_resume(struct acpi_device *device, int state); static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file); static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file); static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file); @@ -103,6 +104,7 @@ static struct acpi_driver acpi_thermal_driver = { .ops = { .add = acpi_thermal_add, .remove = acpi_thermal_remove, + .resume = acpi_thermal_resume, }, }; @@ -684,8 +686,7 @@ static void acpi_thermal_run(unsigned long data) { struct acpi_thermal *tz = (struct acpi_thermal *)data; if (!tz->zombie) - acpi_os_queue_for_execution(OSD_PRIORITY_GPE, - acpi_thermal_check, (void *)data); + acpi_os_execute(OSL_GPE_HANDLER, acpi_thermal_check, (void *)data); } static void acpi_thermal_check(void *data) @@ -942,8 +943,10 @@ acpi_thermal_write_trip_points(struct file *file, memset(limit_string, 0, ACPI_THERMAL_MAX_LIMIT_STR_LEN); active = kmalloc(ACPI_THERMAL_MAX_ACTIVE * sizeof(int), GFP_KERNEL); - if (!active) + if (!active) { + kfree(limit_string); return_VALUE(-ENOMEM); + } if (!tz || (count > ACPI_THERMAL_MAX_LIMIT_STR_LEN - 1)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid argument\n")); @@ -1342,7 +1345,7 @@ static int acpi_thermal_add(struct acpi_device *device) result = acpi_thermal_add_fs(device); if (result) - return_VALUE(result); + goto end; init_timer(&tz->timer); @@ -1416,6 +1419,20 @@ static int acpi_thermal_remove(struct acpi_device *device, int type) return_VALUE(0); } +static int acpi_thermal_resume(struct acpi_device *device, int state) +{ + struct acpi_thermal *tz = NULL; + + if (!device || !acpi_driver_data(device)) + return_VALUE(-EINVAL); + + tz = (struct acpi_thermal *)acpi_driver_data(device); + + acpi_thermal_check(tz); + + return AE_OK; +} + static int __init acpi_thermal_init(void) { int result = 0; diff --git a/drivers/acpi/utilities/utalloc.c b/drivers/acpi/utilities/utalloc.c index 03b0044974c2..7940fc1bd69e 100644 --- a/drivers/acpi/utilities/utalloc.c +++ b/drivers/acpi/utilities/utalloc.c @@ -46,24 +46,6 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utalloc") -/* Local prototypes */ -#ifdef ACPI_DBG_TRACK_ALLOCATIONS -static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation); - -static acpi_status -acpi_ut_track_allocation(struct acpi_debug_mem_block *address, - acpi_size size, - u8 alloc_type, u32 component, char *module, u32 line); - -static acpi_status -acpi_ut_remove_allocation(struct acpi_debug_mem_block *address, - u32 component, char *module, u32 line); - -static acpi_status -acpi_ut_create_list(char *list_name, - u16 object_size, struct acpi_memory_list **return_cache); -#endif - /******************************************************************************* * * FUNCTION: acpi_ut_create_caches @@ -75,33 +57,23 @@ acpi_ut_create_list(char *list_name, * DESCRIPTION: Create all local caches * ******************************************************************************/ - acpi_status acpi_ut_create_caches(void) { acpi_status status; -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - - /* Memory allocation lists */ - - status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list); - if (ACPI_FAILURE(status)) { - return (status); - } + /* Object Caches, for frequently used objects */ status = - acpi_ut_create_list("Acpi-Namespace", - sizeof(struct acpi_namespace_node), - &acpi_gbl_ns_node_list); + acpi_os_create_cache("Acpi-Namespace", + sizeof(struct acpi_namespace_node), + ACPI_MAX_NAMESPACE_CACHE_DEPTH, + &acpi_gbl_namespace_cache); if (ACPI_FAILURE(status)) { return (status); } -#endif - - /* Object Caches, for frequently used objects */ status = - acpi_os_create_cache("acpi_state", sizeof(union acpi_generic_state), + acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state), ACPI_MAX_STATE_CACHE_DEPTH, &acpi_gbl_state_cache); if (ACPI_FAILURE(status)) { @@ -109,7 +81,7 @@ acpi_status acpi_ut_create_caches(void) } status = - acpi_os_create_cache("acpi_parse", + acpi_os_create_cache("Acpi-Parse", sizeof(struct acpi_parse_obj_common), ACPI_MAX_PARSE_CACHE_DEPTH, &acpi_gbl_ps_node_cache); @@ -118,7 +90,7 @@ acpi_status acpi_ut_create_caches(void) } status = - acpi_os_create_cache("acpi_parse_ext", + acpi_os_create_cache("Acpi-ParseExt", sizeof(struct acpi_parse_obj_named), ACPI_MAX_EXTPARSE_CACHE_DEPTH, &acpi_gbl_ps_node_ext_cache); @@ -127,7 +99,7 @@ acpi_status acpi_ut_create_caches(void) } status = - acpi_os_create_cache("acpi_operand", + acpi_os_create_cache("Acpi-Operand", sizeof(union acpi_operand_object), ACPI_MAX_OBJECT_CACHE_DEPTH, &acpi_gbl_operand_cache); @@ -135,6 +107,24 @@ acpi_status acpi_ut_create_caches(void) return (status); } +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + + /* Memory allocation lists */ + + status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list); + if (ACPI_FAILURE(status)) { + return (status); + } + + status = + acpi_ut_create_list("Acpi-Namespace", + sizeof(struct acpi_namespace_node), + &acpi_gbl_ns_node_list); + if (ACPI_FAILURE(status)) { + return (status); + } +#endif + return (AE_OK); } @@ -153,6 +143,9 @@ acpi_status acpi_ut_create_caches(void) acpi_status acpi_ut_delete_caches(void) { + (void)acpi_os_delete_cache(acpi_gbl_namespace_cache); + acpi_gbl_namespace_cache = NULL; + (void)acpi_os_delete_cache(acpi_gbl_state_cache); acpi_gbl_state_cache = NULL; @@ -165,6 +158,21 @@ acpi_status acpi_ut_delete_caches(void) (void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache); acpi_gbl_ps_node_ext_cache = NULL; +#ifdef ACPI_DBG_TRACK_ALLOCATIONS + + /* Debug only - display leftover memory allocation, if any */ + + acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL); + + /* Free memory lists */ + + acpi_os_free(acpi_gbl_global_list); + acpi_gbl_global_list = NULL; + + acpi_os_free(acpi_gbl_ns_node_list); + acpi_gbl_ns_node_list = NULL; +#endif + return (AE_OK); } @@ -252,7 +260,7 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer, /* Allocate a new buffer with local interface to allow tracking */ - buffer->pointer = ACPI_MEM_CALLOCATE(required_length); + buffer->pointer = ACPI_ALLOCATE_ZEROED(required_length); if (!buffer->pointer) { return (AE_NO_MEMORY); } @@ -288,7 +296,7 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer, * * RETURN: Address of the allocated memory on success, NULL on failure. * - * DESCRIPTION: The subsystem's equivalent of malloc. + * DESCRIPTION: Subsystem equivalent of malloc. * ******************************************************************************/ @@ -296,23 +304,23 @@ void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line) { void *allocation; - ACPI_FUNCTION_TRACE_U32("ut_allocate", size); + ACPI_FUNCTION_TRACE_U32(ut_allocate, size); /* Check for an inadvertent size of zero bytes */ if (!size) { - ACPI_ERROR((module, line, - "ut_allocate: Attempt to allocate zero bytes, allocating 1 byte")); + ACPI_WARNING((module, line, + "Attempt to allocate zero bytes, allocating 1 byte")); size = 1; } allocation = acpi_os_allocate(size); if (!allocation) { + /* Report allocation error */ - ACPI_ERROR((module, line, - "ut_allocate: Could not allocate size %X", - (u32) size)); + ACPI_WARNING((module, line, + "Could not allocate size %X", (u32) size)); return_PTR(NULL); } @@ -322,7 +330,7 @@ void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line) /******************************************************************************* * - * FUNCTION: acpi_ut_callocate + * FUNCTION: acpi_ut_allocate_zeroed * * PARAMETERS: Size - Size of the allocation * Component - Component type of caller @@ -331,542 +339,24 @@ void *acpi_ut_allocate(acpi_size size, u32 component, char *module, u32 line) * * RETURN: Address of the allocated memory on success, NULL on failure. * - * DESCRIPTION: Subsystem equivalent of calloc. + * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory. * ******************************************************************************/ -void *acpi_ut_callocate(acpi_size size, u32 component, char *module, u32 line) +void *acpi_ut_allocate_zeroed(acpi_size size, + u32 component, char *module, u32 line) { void *allocation; - ACPI_FUNCTION_TRACE_U32("ut_callocate", size); - - /* Check for an inadvertent size of zero bytes */ - - if (!size) { - ACPI_ERROR((module, line, - "Attempt to allocate zero bytes, allocating 1 byte")); - size = 1; - } - - allocation = acpi_os_allocate(size); - if (!allocation) { - /* Report allocation error */ - - ACPI_ERROR((module, line, - "Could not allocate size %X", (u32) size)); - return_PTR(NULL); - } - - /* Clear the memory block */ - - ACPI_MEMSET(allocation, 0, size); - return_PTR(allocation); -} - -#ifdef ACPI_DBG_TRACK_ALLOCATIONS -/* - * These procedures are used for tracking memory leaks in the subsystem, and - * they get compiled out when the ACPI_DBG_TRACK_ALLOCATIONS is not set. - * - * Each memory allocation is tracked via a doubly linked list. Each - * element contains the caller's component, module name, function name, and - * line number. acpi_ut_allocate and acpi_ut_callocate call - * acpi_ut_track_allocation to add an element to the list; deletion - * occurs in the body of acpi_ut_free. - */ - -/******************************************************************************* - * - * FUNCTION: acpi_ut_create_list - * - * PARAMETERS: cache_name - Ascii name for the cache - * object_size - Size of each cached object - * return_cache - Where the new cache object is returned - * - * RETURN: Status - * - * DESCRIPTION: Create a local memory list for tracking purposed - * - ******************************************************************************/ - -static acpi_status -acpi_ut_create_list(char *list_name, - u16 object_size, struct acpi_memory_list **return_cache) -{ - struct acpi_memory_list *cache; - - cache = acpi_os_allocate(sizeof(struct acpi_memory_list)); - if (!cache) { - return (AE_NO_MEMORY); - } - - ACPI_MEMSET(cache, 0, sizeof(struct acpi_memory_list)); - - cache->list_name = list_name; - cache->object_size = object_size; - - *return_cache = cache; - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_allocate_and_track - * - * PARAMETERS: Size - Size of the allocation - * Component - Component type of caller - * Module - Source file name of caller - * Line - Line number of caller - * - * RETURN: Address of the allocated memory on success, NULL on failure. - * - * DESCRIPTION: The subsystem's equivalent of malloc. - * - ******************************************************************************/ - -void *acpi_ut_allocate_and_track(acpi_size size, - u32 component, char *module, u32 line) -{ - struct acpi_debug_mem_block *allocation; - acpi_status status; - - allocation = - acpi_ut_allocate(size + sizeof(struct acpi_debug_mem_header), - component, module, line); - if (!allocation) { - return (NULL); - } - - status = acpi_ut_track_allocation(allocation, size, - ACPI_MEM_MALLOC, component, module, - line); - if (ACPI_FAILURE(status)) { - acpi_os_free(allocation); - return (NULL); - } - - acpi_gbl_global_list->total_allocated++; - acpi_gbl_global_list->current_total_size += (u32) size; - - return ((void *)&allocation->user_space); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_callocate_and_track - * - * PARAMETERS: Size - Size of the allocation - * Component - Component type of caller - * Module - Source file name of caller - * Line - Line number of caller - * - * RETURN: Address of the allocated memory on success, NULL on failure. - * - * DESCRIPTION: Subsystem equivalent of calloc. - * - ******************************************************************************/ - -void *acpi_ut_callocate_and_track(acpi_size size, - u32 component, char *module, u32 line) -{ - struct acpi_debug_mem_block *allocation; - acpi_status status; - - allocation = - acpi_ut_callocate(size + sizeof(struct acpi_debug_mem_header), - component, module, line); - if (!allocation) { - /* Report allocation error */ - - ACPI_ERROR((module, line, - "Could not allocate size %X", (u32) size)); - return (NULL); - } - - status = acpi_ut_track_allocation(allocation, size, - ACPI_MEM_CALLOC, component, module, - line); - if (ACPI_FAILURE(status)) { - acpi_os_free(allocation); - return (NULL); - } - - acpi_gbl_global_list->total_allocated++; - acpi_gbl_global_list->current_total_size += (u32) size; - - return ((void *)&allocation->user_space); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_free_and_track - * - * PARAMETERS: Allocation - Address of the memory to deallocate - * Component - Component type of caller - * Module - Source file name of caller - * Line - Line number of caller - * - * RETURN: None - * - * DESCRIPTION: Frees the memory at Allocation - * - ******************************************************************************/ - -void -acpi_ut_free_and_track(void *allocation, u32 component, char *module, u32 line) -{ - struct acpi_debug_mem_block *debug_block; - acpi_status status; - - ACPI_FUNCTION_TRACE_PTR("ut_free", allocation); - - if (NULL == allocation) { - ACPI_ERROR((module, line, "Attempt to delete a NULL address")); - - return_VOID; - } - - debug_block = ACPI_CAST_PTR(struct acpi_debug_mem_block, - (((char *)allocation) - - sizeof(struct acpi_debug_mem_header))); - - acpi_gbl_global_list->total_freed++; - acpi_gbl_global_list->current_total_size -= debug_block->size; - - status = acpi_ut_remove_allocation(debug_block, - component, module, line); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Could not free memory")); - } - - acpi_os_free(debug_block); - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p freed\n", allocation)); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_find_allocation - * - * PARAMETERS: Allocation - Address of allocated memory - * - * RETURN: A list element if found; NULL otherwise. - * - * DESCRIPTION: Searches for an element in the global allocation tracking list. - * - ******************************************************************************/ - -static struct acpi_debug_mem_block *acpi_ut_find_allocation(void *allocation) -{ - struct acpi_debug_mem_block *element; - ACPI_FUNCTION_ENTRY(); - element = acpi_gbl_global_list->list_head; - - /* Search for the address. */ - - while (element) { - if (element == allocation) { - return (element); - } - - element = element->next; - } - - return (NULL); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_track_allocation - * - * PARAMETERS: Allocation - Address of allocated memory - * Size - Size of the allocation - * alloc_type - MEM_MALLOC or MEM_CALLOC - * Component - Component type of caller - * Module - Source file name of caller - * Line - Line number of caller - * - * RETURN: None. - * - * DESCRIPTION: Inserts an element into the global allocation tracking list. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation, - acpi_size size, - u8 alloc_type, u32 component, char *module, u32 line) -{ - struct acpi_memory_list *mem_list; - struct acpi_debug_mem_block *element; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE_PTR("ut_track_allocation", allocation); - - mem_list = acpi_gbl_global_list; - status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * Search list for this address to make sure it is not already on the list. - * This will catch several kinds of problems. - */ - element = acpi_ut_find_allocation(allocation); - if (element) { - ACPI_ERROR((AE_INFO, - "ut_track_allocation: Allocation already present in list! (%p)", - allocation)); - - ACPI_ERROR((AE_INFO, "Element %p Address %p", - element, allocation)); - - goto unlock_and_exit; - } - - /* Fill in the instance data. */ - - allocation->size = (u32) size; - allocation->alloc_type = alloc_type; - allocation->component = component; - allocation->line = line; - - ACPI_STRNCPY(allocation->module, module, ACPI_MAX_MODULE_NAME); - allocation->module[ACPI_MAX_MODULE_NAME - 1] = 0; - - /* Insert at list head */ - - if (mem_list->list_head) { - ((struct acpi_debug_mem_block *)(mem_list->list_head))-> - previous = allocation; - } - - allocation->next = mem_list->list_head; - allocation->previous = NULL; - - mem_list->list_head = allocation; - - unlock_and_exit: - status = acpi_ut_release_mutex(ACPI_MTX_MEMORY); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_remove_allocation - * - * PARAMETERS: Allocation - Address of allocated memory - * Component - Component type of caller - * Module - Source file name of caller - * Line - Line number of caller - * - * RETURN: - * - * DESCRIPTION: Deletes an element from the global allocation tracking list. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_remove_allocation(struct acpi_debug_mem_block *allocation, - u32 component, char *module, u32 line) -{ - struct acpi_memory_list *mem_list; - acpi_status status; - - ACPI_FUNCTION_TRACE("ut_remove_allocation"); - - mem_list = acpi_gbl_global_list; - if (NULL == mem_list->list_head) { - /* No allocations! */ - - ACPI_ERROR((module, line, - "Empty allocation list, nothing to free!")); - - return_ACPI_STATUS(AE_OK); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_MEMORY); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Unlink */ - - if (allocation->previous) { - (allocation->previous)->next = allocation->next; - } else { - mem_list->list_head = allocation->next; - } - - if (allocation->next) { - (allocation->next)->previous = allocation->previous; - } - - /* Mark the segment as deleted */ - - ACPI_MEMSET(&allocation->user_space, 0xEA, allocation->size); - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Freeing size 0%X\n", - allocation->size)); + allocation = acpi_ut_allocate(size, component, module, line); + if (allocation) { - status = acpi_ut_release_mutex(ACPI_MTX_MEMORY); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_dump_allocation_info - * - * PARAMETERS: - * - * RETURN: None - * - * DESCRIPTION: Print some info about the outstanding allocations. - * - ******************************************************************************/ + /* Clear the memory block */ -#ifdef ACPI_FUTURE_USAGE -void acpi_ut_dump_allocation_info(void) -{ -/* - struct acpi_memory_list *mem_list; -*/ - - ACPI_FUNCTION_TRACE("ut_dump_allocation_info"); - -/* - ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, - ("%30s: %4d (%3d Kb)\n", "Current allocations", - mem_list->current_count, - ROUND_UP_TO_1K (mem_list->current_size))); - - ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, - ("%30s: %4d (%3d Kb)\n", "Max concurrent allocations", - mem_list->max_concurrent_count, - ROUND_UP_TO_1K (mem_list->max_concurrent_size))); - - ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, - ("%30s: %4d (%3d Kb)\n", "Total (all) internal objects", - running_object_count, - ROUND_UP_TO_1K (running_object_size))); - - ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, - ("%30s: %4d (%3d Kb)\n", "Total (all) allocations", - running_alloc_count, - ROUND_UP_TO_1K (running_alloc_size))); - - ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, - ("%30s: %4d (%3d Kb)\n", "Current Nodes", - acpi_gbl_current_node_count, - ROUND_UP_TO_1K (acpi_gbl_current_node_size))); - - ACPI_DEBUG_PRINT (TRACE_ALLOCATIONS | TRACE_TABLES, - ("%30s: %4d (%3d Kb)\n", "Max Nodes", - acpi_gbl_max_concurrent_node_count, - ROUND_UP_TO_1K ((acpi_gbl_max_concurrent_node_count * - sizeof (struct acpi_namespace_node))))); -*/ - return_VOID; -} -#endif /* ACPI_FUTURE_USAGE */ - -/******************************************************************************* - * - * FUNCTION: acpi_ut_dump_allocations - * - * PARAMETERS: Component - Component(s) to dump info for. - * Module - Module to dump info for. NULL means all. - * - * RETURN: None - * - * DESCRIPTION: Print a list of all outstanding allocations. - * - ******************************************************************************/ - -void acpi_ut_dump_allocations(u32 component, char *module) -{ - struct acpi_debug_mem_block *element; - union acpi_descriptor *descriptor; - u32 num_outstanding = 0; - - ACPI_FUNCTION_TRACE("ut_dump_allocations"); - - /* - * Walk the allocation list. - */ - if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_MEMORY))) { - return; + ACPI_MEMSET(allocation, 0, size); } - element = acpi_gbl_global_list->list_head; - while (element) { - if ((element->component & component) && - ((module == NULL) - || (0 == ACPI_STRCMP(module, element->module)))) { - /* Ignore allocated objects that are in a cache */ - - descriptor = - ACPI_CAST_PTR(union acpi_descriptor, - &element->user_space); - if (descriptor->descriptor_id != ACPI_DESC_TYPE_CACHED) { - acpi_os_printf("%p Len %04X %9.9s-%d [%s] ", - descriptor, element->size, - element->module, element->line, - acpi_ut_get_descriptor_name - (descriptor)); - - /* Most of the elements will be Operand objects. */ - - switch (ACPI_GET_DESCRIPTOR_TYPE(descriptor)) { - case ACPI_DESC_TYPE_OPERAND: - acpi_os_printf("%12.12s R%hd", - acpi_ut_get_type_name - (descriptor->object. - common.type), - descriptor->object. - common.reference_count); - break; - - case ACPI_DESC_TYPE_PARSER: - acpi_os_printf("aml_opcode %04hX", - descriptor->op.asl. - aml_opcode); - break; - - case ACPI_DESC_TYPE_NAMED: - acpi_os_printf("%4.4s", - acpi_ut_get_node_name - (&descriptor->node)); - break; - - default: - break; - } - - acpi_os_printf("\n"); - num_outstanding++; - } - } - element = element->next; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_MEMORY); - - /* Print summary */ - - if (!num_outstanding) { - ACPI_INFO((AE_INFO, "No outstanding allocations")); - } else { - ACPI_ERROR((AE_INFO, - "%d(%X) Outstanding allocations", - num_outstanding, num_outstanding)); - } - - return_VOID; + return (allocation); } - -#endif /* #ifdef ACPI_DBG_TRACK_ALLOCATIONS */ diff --git a/drivers/acpi/utilities/utcache.c b/drivers/acpi/utilities/utcache.c index 2177cb1ef2c4..56270a30718a 100644 --- a/drivers/acpi/utilities/utcache.c +++ b/drivers/acpi/utilities/utcache.c @@ -118,13 +118,14 @@ acpi_status acpi_os_purge_cache(struct acpi_memory_list * cache) /* Walk the list of objects in this cache */ while (cache->list_head) { + /* Delete and unlink one cached state object */ next = *(ACPI_CAST_INDIRECT_PTR(char, &(((char *)cache-> list_head)[cache-> link_offset]))); - ACPI_MEM_FREE(cache->list_head); + ACPI_FREE(cache->list_head); cache->list_head = next; cache->current_depth--; @@ -193,7 +194,7 @@ acpi_os_release_object(struct acpi_memory_list * cache, void *object) /* If cache is full, just free this object */ if (cache->current_depth >= cache->max_depth) { - ACPI_MEM_FREE(object); + ACPI_FREE(object); ACPI_MEM_TRACKING(cache->total_freed++); } @@ -243,7 +244,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) acpi_status status; void *object; - ACPI_FUNCTION_NAME("os_acquire_object"); + ACPI_FUNCTION_NAME(os_acquire_object); if (!cache) { return (NULL); @@ -259,6 +260,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) /* Check the cache first */ if (cache->list_head) { + /* There is an object available, use it */ object = cache->list_head; @@ -270,9 +272,9 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) cache->current_depth--; ACPI_MEM_TRACKING(cache->hits++); - ACPI_MEM_TRACKING(ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Object %p from %s cache\n", - object, cache->list_name))); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Object %p from %s cache\n", object, + cache->list_name)); status = acpi_ut_release_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { @@ -287,14 +289,14 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) ACPI_MEM_TRACKING(cache->total_allocated++); - /* Avoid deadlock with ACPI_MEM_CALLOCATE */ + /* Avoid deadlock with ACPI_ALLOCATE_ZEROED */ status = acpi_ut_release_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { return (NULL); } - object = ACPI_MEM_CALLOCATE(cache->object_size); + object = ACPI_ALLOCATE_ZEROED(cache->object_size); if (!object) { return (NULL); } diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c index df2d32096b72..5e1a80d1bc36 100644 --- a/drivers/acpi/utilities/utcopy.c +++ b/drivers/acpi/utilities/utcopy.c @@ -109,7 +109,7 @@ acpi_ut_copy_isimple_to_esimple(union acpi_operand_object *internal_object, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ut_copy_isimple_to_esimple"); + ACPI_FUNCTION_TRACE(ut_copy_isimple_to_esimple); *buffer_space_used = 0; @@ -325,7 +325,7 @@ acpi_ut_copy_ipackage_to_epackage(union acpi_operand_object *internal_object, acpi_status status; struct acpi_pkg_info info; - ACPI_FUNCTION_TRACE("ut_copy_ipackage_to_epackage"); + ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_epackage); /* * First package at head of the buffer @@ -383,7 +383,7 @@ acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object, { acpi_status status; - ACPI_FUNCTION_TRACE("ut_copy_iobject_to_eobject"); + ACPI_FUNCTION_TRACE(ut_copy_iobject_to_eobject); if (ACPI_GET_OBJECT_TYPE(internal_object) == ACPI_TYPE_PACKAGE) { /* @@ -442,7 +442,7 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, { union acpi_operand_object *internal_object; - ACPI_FUNCTION_TRACE("ut_copy_esimple_to_isimple"); + ACPI_FUNCTION_TRACE(ut_copy_esimple_to_isimple); /* * Simple types supported are: String, Buffer, Integer @@ -472,8 +472,8 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, case ACPI_TYPE_STRING: internal_object->string.pointer = - ACPI_MEM_CALLOCATE((acpi_size) external_object->string. - length + 1); + ACPI_ALLOCATE_ZEROED((acpi_size) external_object->string. + length + 1); if (!internal_object->string.pointer) { goto error_exit; } @@ -488,7 +488,7 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object, case ACPI_TYPE_BUFFER: internal_object->buffer.pointer = - ACPI_MEM_CALLOCATE(external_object->buffer.length); + ACPI_ALLOCATE_ZEROED(external_object->buffer.length); if (!internal_object->buffer.pointer) { goto error_exit; } @@ -552,7 +552,7 @@ acpi_ut_copy_epackage_to_ipackage(union acpi_operand_object *internal_object, union acpi_operand_object *this_internal_obj; union acpi_object *this_external_obj; - ACPI_FUNCTION_TRACE("ut_copy_epackage_to_ipackage"); + ACPI_FUNCTION_TRACE(ut_copy_epackage_to_ipackage); /* * First package at head of the buffer @@ -600,7 +600,7 @@ acpi_ut_copy_eobject_to_iobject(union acpi_object *external_object, { acpi_status status; - ACPI_FUNCTION_TRACE("ut_copy_eobject_to_iobject"); + ACPI_FUNCTION_TRACE(ut_copy_eobject_to_iobject); if (external_object->type == ACPI_TYPE_PACKAGE) { /* @@ -676,7 +676,7 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc, if ((source_desc->buffer.pointer) && (source_desc->buffer.length)) { dest_desc->buffer.pointer = - ACPI_MEM_ALLOCATE(source_desc->buffer.length); + ACPI_ALLOCATE(source_desc->buffer.length); if (!dest_desc->buffer.pointer) { return (AE_NO_MEMORY); } @@ -697,8 +697,8 @@ acpi_ut_copy_simple_object(union acpi_operand_object *source_desc, */ if (source_desc->string.pointer) { dest_desc->string.pointer = - ACPI_MEM_ALLOCATE((acpi_size) source_desc->string. - length + 1); + ACPI_ALLOCATE((acpi_size) source_desc->string. + length + 1); if (!dest_desc->string.pointer) { return (AE_NO_MEMORY); } @@ -805,9 +805,7 @@ acpi_ut_copy_ielement_to_ielement(u8 object_type, /* * Create the object array */ - target_object->package.elements = - ACPI_MEM_CALLOCATE(((acpi_size) source_object->package. - count + 1) * sizeof(void *)); + target_object->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) source_object->package.count + 1) * sizeof(void *)); if (!target_object->package.elements) { status = AE_NO_MEMORY; goto error_exit; @@ -856,7 +854,7 @@ acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ut_copy_ipackage_to_ipackage"); + ACPI_FUNCTION_TRACE(ut_copy_ipackage_to_ipackage); dest_obj->common.type = ACPI_GET_OBJECT_TYPE(source_obj); dest_obj->common.flags = source_obj->common.flags; @@ -865,10 +863,10 @@ acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj, /* * Create the object array and walk the source package tree */ - dest_obj->package.elements = ACPI_MEM_CALLOCATE(((acpi_size) - source_obj->package. - count + - 1) * sizeof(void *)); + dest_obj->package.elements = ACPI_ALLOCATE_ZEROED(((acpi_size) + source_obj->package. + count + + 1) * sizeof(void *)); if (!dest_obj->package.elements) { ACPI_ERROR((AE_INFO, "Package allocation failure")); return_ACPI_STATUS(AE_NO_MEMORY); @@ -882,6 +880,7 @@ acpi_ut_copy_ipackage_to_ipackage(union acpi_operand_object *source_obj, acpi_ut_copy_ielement_to_ielement, walk_state); if (ACPI_FAILURE(status)) { + /* On failure, delete the destination package object */ acpi_ut_remove_reference(dest_obj); @@ -911,7 +910,7 @@ acpi_ut_copy_iobject_to_iobject(union acpi_operand_object *source_desc, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ut_copy_iobject_to_iobject"); + ACPI_FUNCTION_TRACE(ut_copy_iobject_to_iobject); /* Create the top level object */ diff --git a/drivers/acpi/utilities/utdebug.c b/drivers/acpi/utilities/utdebug.c index 35f3d581e034..5ec1cfcc611d 100644 --- a/drivers/acpi/utilities/utdebug.c +++ b/drivers/acpi/utilities/utdebug.c @@ -41,8 +41,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #define _COMPONENT ACPI_UTILITIES @@ -123,12 +121,14 @@ static const char *acpi_ut_trim_function_name(const char *function_name) /* All Function names are longer than 4 chars, check is safe */ if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_MIXED) { + /* This is the case where the original source has not been modified */ return (function_name + 4); } if (*(ACPI_CAST_PTR(u32, function_name)) == ACPI_PREFIX_LOWER) { + /* This is the case where the source has been 'linuxized' */ return (function_name + 5); @@ -162,7 +162,7 @@ acpi_ut_debug_print(u32 requested_debug_level, const char *function_name, char *module_name, u32 component_id, char *format, ...) { - u32 thread_id; + acpi_thread_id thread_id; va_list args; /* @@ -177,7 +177,6 @@ acpi_ut_debug_print(u32 requested_debug_level, * Thread tracking and context switch notification */ thread_id = acpi_os_get_thread_id(); - if (thread_id != acpi_gbl_prev_thread_id) { if (ACPI_LV_THREADS & acpi_dbg_level) { acpi_os_printf @@ -206,7 +205,7 @@ acpi_ut_debug_print(u32 requested_debug_level, acpi_os_vprintf(format, args); } -EXPORT_SYMBOL(acpi_ut_debug_print); +ACPI_EXPORT_SYMBOL(acpi_ut_debug_print) /******************************************************************************* * @@ -226,7 +225,6 @@ EXPORT_SYMBOL(acpi_ut_debug_print); * debug_print so that the same macros can be used. * ******************************************************************************/ - void ACPI_INTERNAL_VAR_XFACE acpi_ut_debug_print_raw(u32 requested_debug_level, u32 line_number, @@ -244,7 +242,7 @@ acpi_ut_debug_print_raw(u32 requested_debug_level, acpi_os_vprintf(format, args); } -EXPORT_SYMBOL(acpi_ut_debug_print_raw); +ACPI_EXPORT_SYMBOL(acpi_ut_debug_print_raw) /******************************************************************************* * @@ -261,7 +259,6 @@ EXPORT_SYMBOL(acpi_ut_debug_print_raw); * set in debug_level * ******************************************************************************/ - void acpi_ut_trace(u32 line_number, const char *function_name, char *module_name, u32 component_id) @@ -275,7 +272,7 @@ acpi_ut_trace(u32 line_number, component_id, "%s\n", acpi_gbl_fn_entry_str); } -EXPORT_SYMBOL(acpi_ut_trace); +ACPI_EXPORT_SYMBOL(acpi_ut_trace) /******************************************************************************* * @@ -293,7 +290,6 @@ EXPORT_SYMBOL(acpi_ut_trace); * set in debug_level * ******************************************************************************/ - void acpi_ut_trace_ptr(u32 line_number, const char *function_name, @@ -400,7 +396,7 @@ acpi_ut_exit(u32 line_number, acpi_gbl_nesting_level--; } -EXPORT_SYMBOL(acpi_ut_exit); +ACPI_EXPORT_SYMBOL(acpi_ut_exit) /******************************************************************************* * @@ -418,7 +414,6 @@ EXPORT_SYMBOL(acpi_ut_exit); * set in debug_level. Prints exit status also. * ******************************************************************************/ - void acpi_ut_status_exit(u32 line_number, const char *function_name, @@ -442,7 +437,7 @@ acpi_ut_status_exit(u32 line_number, acpi_gbl_nesting_level--; } -EXPORT_SYMBOL(acpi_ut_status_exit); +ACPI_EXPORT_SYMBOL(acpi_ut_status_exit) /******************************************************************************* * @@ -460,7 +455,6 @@ EXPORT_SYMBOL(acpi_ut_status_exit); * set in debug_level. Prints exit value also. * ******************************************************************************/ - void acpi_ut_value_exit(u32 line_number, const char *function_name, @@ -475,7 +469,7 @@ acpi_ut_value_exit(u32 line_number, acpi_gbl_nesting_level--; } -EXPORT_SYMBOL(acpi_ut_value_exit); +ACPI_EXPORT_SYMBOL(acpi_ut_value_exit) /******************************************************************************* * @@ -493,7 +487,6 @@ EXPORT_SYMBOL(acpi_ut_value_exit); * set in debug_level. Prints exit value also. * ******************************************************************************/ - void acpi_ut_ptr_exit(u32 line_number, const char *function_name, @@ -524,20 +517,13 @@ acpi_ut_ptr_exit(u32 line_number, * ******************************************************************************/ -void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) +void acpi_ut_dump_buffer2(u8 * buffer, u32 count, u32 display) { acpi_native_uint i = 0; acpi_native_uint j; u32 temp32; u8 buf_char; - /* Only dump the buffer if tracing is enabled */ - - if (!((ACPI_LV_TABLES & acpi_dbg_level) && - (component_id & acpi_dbg_layer))) { - return; - } - if ((count < 4) || (count & 0x01)) { display = DB_BYTE_DISPLAY; } @@ -545,6 +531,7 @@ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) /* Nasty little dump buffer routine! */ while (i < count) { + /* Print current offset */ acpi_os_printf("%6.4X: ", (u32) i); @@ -553,6 +540,7 @@ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) for (j = 0; j < 16;) { if (i + j >= count) { + /* Dump fill spaces */ acpi_os_printf("%*s", ((display * 2) + 1), " "); @@ -561,6 +549,7 @@ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) } switch (display) { + case DB_BYTE_DISPLAY: default: /* Default is BYTE display */ acpi_os_printf("%02X ", buffer[i + j]); @@ -618,3 +607,31 @@ void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) return; } + +/******************************************************************************* + * + * FUNCTION: acpi_ut_dump_buffer + * + * PARAMETERS: Buffer - Buffer to dump + * Count - Amount to dump, in bytes + * Display - BYTE, WORD, DWORD, or QWORD display + * component_iD - Caller's component ID + * + * RETURN: None + * + * DESCRIPTION: Generic dump buffer in both hex and ascii. + * + ******************************************************************************/ + +void acpi_ut_dump_buffer(u8 * buffer, u32 count, u32 display, u32 component_id) +{ + + /* Only dump the buffer if tracing is enabled */ + + if (!((ACPI_LV_TABLES & acpi_dbg_level) && + (component_id & acpi_dbg_layer))) { + return; + } + + acpi_ut_dump_buffer2(buffer, count, display); +} diff --git a/drivers/acpi/utilities/utdelete.c b/drivers/acpi/utilities/utdelete.c index 1db9695b0029..67b9f325c6fa 100644 --- a/drivers/acpi/utilities/utdelete.c +++ b/drivers/acpi/utilities/utdelete.c @@ -76,7 +76,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) union acpi_operand_object *second_desc; union acpi_operand_object *next_desc; - ACPI_FUNCTION_TRACE_PTR("ut_delete_internal_obj", object); + ACPI_FUNCTION_TRACE_PTR(ut_delete_internal_obj, object); if (!object) { return_VOID; @@ -96,6 +96,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) /* Free the actual string buffer */ if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) { + /* But only if it is NOT a pointer into an ACPI table */ obj_pointer = object->string.pointer; @@ -111,6 +112,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) /* Free the actual buffer */ if (!(object->common.flags & AOPOBJ_STATIC_POINTER)) { + /* But only if it is NOT a pointer into an ACPI table */ obj_pointer = object->buffer.pointer; @@ -198,11 +200,22 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) */ handler_desc = object->region.handler; if (handler_desc) { - if (handler_desc->address_space. - hflags & + if (handler_desc->address_space.handler_flags & ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) { - obj_pointer = - second_desc->extra.region_context; + + /* Deactivate region and free region context */ + + if (handler_desc->address_space.setup) { + (void)handler_desc-> + address_space.setup(object, + ACPI_REGION_DEACTIVATE, + handler_desc-> + address_space. + context, + &second_desc-> + extra. + region_context); + } } acpi_ut_remove_reference(handler_desc); @@ -234,7 +247,7 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) if (obj_pointer) { ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Deleting Object Subptr %p\n", obj_pointer)); - ACPI_MEM_FREE(obj_pointer); + ACPI_FREE(obj_pointer); } /* Now the object can be safely deleted */ @@ -263,7 +276,7 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list) { union acpi_operand_object **internal_obj; - ACPI_FUNCTION_TRACE("ut_delete_internal_object_list"); + ACPI_FUNCTION_TRACE(ut_delete_internal_object_list); /* Walk the null-terminated internal list */ @@ -273,7 +286,7 @@ void acpi_ut_delete_internal_object_list(union acpi_operand_object **obj_list) /* Free the combined parameter pointer list and object array */ - ACPI_MEM_FREE(obj_list); + ACPI_FREE(obj_list); return_VOID; } @@ -296,7 +309,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) u16 count; u16 new_count; - ACPI_FUNCTION_NAME("ut_update_ref_count"); + ACPI_FUNCTION_NAME(ut_update_ref_count); if (!object) { return; @@ -306,11 +319,9 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) new_count = count; /* - * Perform the reference count action - * (increment, decrement, or force delete) + * Perform the reference count action (increment, decrement, force delete) */ switch (action) { - case REF_INCREMENT: new_count++; @@ -347,7 +358,6 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) if (new_count == 0) { acpi_ut_delete_internal_obj(object); } - break; case REF_FORCE_DELETE: @@ -372,13 +382,10 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) * (A deleted object will have a huge reference count) */ if (count > ACPI_MAX_REFERENCE_COUNT) { - ACPI_WARNING((AE_INFO, - "Large Reference Count (%X) in object %p", - count, object)); + "Large Reference Count (%X) in object %p", count, + object)); } - - return; } /******************************************************************************* @@ -404,7 +411,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action) ******************************************************************************/ acpi_status -acpi_ut_update_object_reference(union acpi_operand_object * object, u16 action) +acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action) { acpi_status status = AE_OK; union acpi_generic_state *state_list = NULL; @@ -412,9 +419,10 @@ acpi_ut_update_object_reference(union acpi_operand_object * object, u16 action) union acpi_generic_state *state; acpi_native_uint i; - ACPI_FUNCTION_TRACE_PTR("ut_update_object_reference", object); + ACPI_FUNCTION_TRACE_PTR(ut_update_object_reference, object); while (object) { + /* Make sure that this isn't a namespace handle */ if (ACPI_GET_DESCRIPTOR_TYPE(object) == ACPI_DESC_TYPE_NAMED) { @@ -507,11 +515,11 @@ acpi_ut_update_object_reference(union acpi_operand_object * object, u16 action) case ACPI_TYPE_REGION: default: - break; /* No subobjects */ + break; /* No subobjects for all other types */ } /* - * Now we can update the count in the main object. This can only + * Now we can update the count in the main object. This can only * happen after we update the sub-objects in case this causes the * main object to be deleted. */ @@ -556,7 +564,7 @@ acpi_ut_update_object_reference(union acpi_operand_object * object, u16 action) void acpi_ut_add_reference(union acpi_operand_object *object) { - ACPI_FUNCTION_TRACE_PTR("ut_add_reference", object); + ACPI_FUNCTION_TRACE_PTR(ut_add_reference, object); /* Ensure that we have a valid object */ @@ -589,11 +597,11 @@ void acpi_ut_add_reference(union acpi_operand_object *object) void acpi_ut_remove_reference(union acpi_operand_object *object) { - ACPI_FUNCTION_TRACE_PTR("ut_remove_reference", object); + ACPI_FUNCTION_TRACE_PTR(ut_remove_reference, object); /* - * Allow a NULL pointer to be passed in, just ignore it. This saves - * each caller from having to check. Also, ignore NS nodes. + * Allow a NULL pointer to be passed in, just ignore it. This saves + * each caller from having to check. Also, ignore NS nodes. * */ if (!object || @@ -613,7 +621,7 @@ void acpi_ut_remove_reference(union acpi_operand_object *object) /* * Decrement the reference count, and only actually delete the object - * if the reference count becomes 0. (Must also decrement the ref count + * if the reference count becomes 0. (Must also decrement the ref count * of all subobjects!) */ (void)acpi_ut_update_object_reference(object, REF_DECREMENT); diff --git a/drivers/acpi/utilities/uteval.c b/drivers/acpi/utilities/uteval.c index 106cc97cb4af..d6d7121583c0 100644 --- a/drivers/acpi/utilities/uteval.c +++ b/drivers/acpi/utilities/uteval.c @@ -56,6 +56,34 @@ static acpi_status acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc, struct acpi_compatible_id *one_cid); +/* + * Strings supported by the _OSI predefined (internal) method. + */ +static const char *acpi_interfaces_supported[] = { + /* Operating System Vendor Strings */ + + "Linux", + "Windows 2000", + "Windows 2001", + "Windows 2001 SP0", + "Windows 2001 SP1", + "Windows 2001 SP2", + "Windows 2001 SP3", + "Windows 2001 SP4", + "Windows 2001.1", + "Windows 2001.1 SP1", /* Added 03/2006 */ + "Windows 2006", /* Added 03/2006 */ + + /* Feature Group Strings */ + + "Extended Address Space Descriptor" + /* + * All "optional" feature group strings (features that are implemented + * by the host) should be implemented in the host version of + * acpi_os_validate_interface and should not be added here. + */ +}; + /******************************************************************************* * * FUNCTION: acpi_ut_osi_implementation @@ -64,18 +92,18 @@ acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc, * * RETURN: Status * - * DESCRIPTION: Implementation of _OSI predefined control method - * Supported = _OSI (String) + * DESCRIPTION: Implementation of the _OSI predefined control method * ******************************************************************************/ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state) { + acpi_status status; union acpi_operand_object *string_desc; union acpi_operand_object *return_desc; acpi_native_uint i; - ACPI_FUNCTION_TRACE("ut_osi_implementation"); + ACPI_FUNCTION_TRACE(ut_osi_implementation); /* Validate the string input argument */ @@ -84,28 +112,47 @@ acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state) return_ACPI_STATUS(AE_TYPE); } - /* Create a return object (Default value = 0) */ + /* Create a return object */ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); if (!return_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } - /* Compare input string to table of supported strings */ + /* Default return value is SUPPORTED */ + + return_desc->integer.value = ACPI_UINT32_MAX; + walk_state->return_desc = return_desc; + + /* Compare input string to static table of supported interfaces */ - for (i = 0; i < ACPI_NUM_OSI_STRINGS; i++) { - if (!ACPI_STRCMP(string_desc->string.pointer, - ACPI_CAST_PTR(char, - acpi_gbl_valid_osi_strings[i]))) - { - /* This string is supported */ + for (i = 0; i < ACPI_ARRAY_LENGTH(acpi_interfaces_supported); i++) { + if (!ACPI_STRCMP + (string_desc->string.pointer, + acpi_interfaces_supported[i])) { - return_desc->integer.value = 0xFFFFFFFF; - break; + /* The interface is supported */ + + return_ACPI_STATUS(AE_CTRL_TERMINATE); } } - walk_state->return_desc = return_desc; + /* + * Did not match the string in the static table, call the host OSL to + * check for a match with one of the optional strings (such as + * "Module Device", "3.0 Thermal Model", etc.) + */ + status = acpi_os_validate_interface(string_desc->string.pointer); + if (ACPI_SUCCESS(status)) { + + /* The interface is supported */ + + return_ACPI_STATUS(AE_CTRL_TERMINATE); + } + + /* The interface is not supported */ + + return_desc->integer.value = 0; return_ACPI_STATUS(AE_CTRL_TERMINATE); } @@ -134,19 +181,26 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, u32 expected_return_btypes, union acpi_operand_object **return_desc) { - struct acpi_parameter_info info; + struct acpi_evaluate_info *info; acpi_status status; u32 return_btype; - ACPI_FUNCTION_TRACE("ut_evaluate_object"); + ACPI_FUNCTION_TRACE(ut_evaluate_object); - info.node = prefix_node; - info.parameters = NULL; - info.parameter_type = ACPI_PARAM_ARGS; + /* Allocate the evaluation information block */ + + info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + info->prefix_node = prefix_node; + info->pathname = path; + info->parameter_type = ACPI_PARAM_ARGS; /* Evaluate the object/method */ - status = acpi_ns_evaluate_relative(path, &info); + status = acpi_ns_evaluate(info); if (ACPI_FAILURE(status)) { if (status == AE_NOT_FOUND) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, @@ -158,25 +212,25 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, prefix_node, path, status); } - return_ACPI_STATUS(status); + goto cleanup; } /* Did we get a return object? */ - if (!info.return_object) { + if (!info->return_object) { if (expected_return_btypes) { ACPI_ERROR_METHOD("No object was returned from", prefix_node, path, AE_NOT_EXIST); - return_ACPI_STATUS(AE_NOT_EXIST); + status = AE_NOT_EXIST; } - return_ACPI_STATUS(AE_OK); + goto cleanup; } /* Map the return object type to the bitmapped type */ - switch (ACPI_GET_OBJECT_TYPE(info.return_object)) { + switch (ACPI_GET_OBJECT_TYPE(info->return_object)) { case ACPI_TYPE_INTEGER: return_btype = ACPI_BTYPE_INTEGER; break; @@ -204,8 +258,8 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, * happen frequently if the "implicit return" feature is enabled. * Just delete the return object and return AE_OK. */ - acpi_ut_remove_reference(info.return_object); - return_ACPI_STATUS(AE_OK); + acpi_ut_remove_reference(info->return_object); + goto cleanup; } /* Is the return object one of the expected types? */ @@ -217,19 +271,23 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, ACPI_ERROR((AE_INFO, "Type returned from %s was incorrect: %s, expected Btypes: %X", path, - acpi_ut_get_object_type_name(info.return_object), + acpi_ut_get_object_type_name(info->return_object), expected_return_btypes)); /* On error exit, we must delete the return object */ - acpi_ut_remove_reference(info.return_object); - return_ACPI_STATUS(AE_TYPE); + acpi_ut_remove_reference(info->return_object); + status = AE_TYPE; + goto cleanup; } /* Object type is OK, return it */ - *return_desc = info.return_object; - return_ACPI_STATUS(AE_OK); + *return_desc = info->return_object; + + cleanup: + ACPI_FREE(info); + return_ACPI_STATUS(status); } /******************************************************************************* @@ -257,7 +315,7 @@ acpi_ut_evaluate_numeric_object(char *object_name, union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("ut_evaluate_numeric_object"); + ACPI_FUNCTION_TRACE(ut_evaluate_numeric_object); status = acpi_ut_evaluate_object(device_node, object_name, ACPI_BTYPE_INTEGER, &obj_desc); @@ -333,7 +391,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node, union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("ut_execute_HID"); + ACPI_FUNCTION_TRACE(ut_execute_HID); status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID, ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, @@ -343,6 +401,7 @@ acpi_ut_execute_HID(struct acpi_namespace_node *device_node, } if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + /* Convert the Numeric HID to string */ acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value, @@ -436,7 +495,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node, struct acpi_compatible_id_list *cid_list; acpi_native_uint i; - ACPI_FUNCTION_TRACE("ut_execute_CID"); + ACPI_FUNCTION_TRACE(ut_execute_CID); /* Evaluate the _CID method for this device */ @@ -459,7 +518,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node, size = (((count - 1) * sizeof(struct acpi_compatible_id)) + sizeof(struct acpi_compatible_id_list)); - cid_list = ACPI_MEM_CALLOCATE((acpi_size) size); + cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size); if (!cid_list) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -479,6 +538,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node, /* The _CID object can be either a single CID or a package (list) of CIDs */ if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_PACKAGE) { + /* Translate each package element */ for (i = 0; i < count; i++) { @@ -499,7 +559,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node * device_node, /* Cleanup on error */ if (ACPI_FAILURE(status)) { - ACPI_MEM_FREE(cid_list); + ACPI_FREE(cid_list); } else { *return_cid_list = cid_list; } @@ -533,7 +593,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node, union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("ut_execute_UID"); + ACPI_FUNCTION_TRACE(ut_execute_UID); status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID, ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, @@ -543,6 +603,7 @@ acpi_ut_execute_UID(struct acpi_namespace_node *device_node, } if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + /* Convert the Numeric UID to string */ acpi_ex_unsigned_integer_to_string(obj_desc->integer.value, @@ -582,7 +643,7 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags) union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE("ut_execute_STA"); + ACPI_FUNCTION_TRACE(ut_execute_STA); status = acpi_ut_evaluate_object(device_node, METHOD_NAME__STA, ACPI_BTYPE_INTEGER, &obj_desc); @@ -632,7 +693,7 @@ acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest) acpi_status status; u32 i; - ACPI_FUNCTION_TRACE("ut_execute_Sxds"); + ACPI_FUNCTION_TRACE(ut_execute_sxds); for (i = 0; i < 4; i++) { highest[i] = 0xFF; diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c index ffd13383a325..e5999c65c0b8 100644 --- a/drivers/acpi/utilities/utglobal.c +++ b/drivers/acpi/utilities/utglobal.c @@ -43,7 +43,6 @@ #define DEFINE_ACPI_GLOBALS -#include <linux/module.h> #include <acpi/acpi.h> #include <acpi/acnamesp.h> @@ -119,6 +118,7 @@ const char *acpi_format_exception(acpi_status status) } if (!exception) { + /* Exception code was not recognized */ ACPI_ERROR((AE_INFO, @@ -143,12 +143,10 @@ const char *acpi_format_exception(acpi_status status) /* Debug switch - level and trace mask */ u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT; -EXPORT_SYMBOL(acpi_dbg_level); /* Debug switch - layer (component) mask */ u32 acpi_dbg_layer = ACPI_COMPONENT_DEFAULT | ACPI_ALL_DRIVERS; -EXPORT_SYMBOL(acpi_dbg_layer); u32 acpi_gbl_nesting_level = 0; /* Debugger globals */ @@ -183,28 +181,6 @@ const char *acpi_gbl_highest_dstate_names[4] = { "_S4D" }; -/* - * Strings supported by the _OSI predefined (internal) method. - * When adding strings, be sure to update ACPI_NUM_OSI_STRINGS. - */ -const char *acpi_gbl_valid_osi_strings[ACPI_NUM_OSI_STRINGS] = { - /* Operating System Vendor Strings */ - - "Linux", - "Windows 2000", - "Windows 2001", - "Windows 2001.1", - "Windows 2001 SP0", - "Windows 2001 SP1", - "Windows 2001 SP2", - "Windows 2001 SP3", - "Windows 2001 SP4", - - /* Feature Group Strings */ - - "Extended Address Space Descriptor" -}; - /******************************************************************************* * * Namespace globals @@ -317,9 +293,9 @@ char acpi_ut_hex_to_ascii_char(acpi_integer integer, u32 position) * ******************************************************************************/ -struct acpi_table_list acpi_gbl_table_lists[NUM_ACPI_TABLE_TYPES]; +struct acpi_table_list acpi_gbl_table_lists[ACPI_TABLE_ID_MAX + 1]; -struct acpi_table_support acpi_gbl_table_data[NUM_ACPI_TABLE_TYPES] = { +struct acpi_table_support acpi_gbl_table_data[ACPI_TABLE_ID_MAX + 1] = { /*********** Name, Signature, Global typed pointer Signature size, Type How many allowed?, Contains valid AML? */ /* RSDP 0 */ {RSDP_NAME, RSDP_SIG, NULL, sizeof(RSDP_SIG) - 1, @@ -467,7 +443,6 @@ struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = /* Region type decoding */ const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = { -/*! [Begin] no source code translation (keep these ASL Keywords as-is) */ "SystemMemory", "SystemIO", "PCI_Config", @@ -476,16 +451,15 @@ const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = { "CMOS", "PCIBARTarget", "DataTable" -/*! [End] no source code translation !*/ }; char *acpi_ut_get_region_name(u8 space_id) { if (space_id >= ACPI_USER_REGION_BEGIN) { - return ("user_defined_region"); + return ("UserDefinedRegion"); } else if (space_id >= ACPI_NUM_PREDEFINED_REGIONS) { - return ("invalid_space_id"); + return ("InvalidSpaceId"); } return (ACPI_CAST_PTR(char, acpi_gbl_region_types[space_id])); @@ -506,20 +480,18 @@ char *acpi_ut_get_region_name(u8 space_id) /* Event type decoding */ static const char *acpi_gbl_event_types[ACPI_NUM_FIXED_EVENTS] = { -/*! [Begin] no source code translation (keep these strings as-is) */ "PM_Timer", "GlobalLock", "PowerButton", "SleepButton", "RealTimeClock", -/*! [End] no source code translation !*/ }; char *acpi_ut_get_event_name(u32 event_id) { if (event_id > ACPI_EVENT_MAX) { - return ("invalid_event_iD"); + return ("InvalidEventID"); } return (ACPI_CAST_PTR(char, acpi_gbl_event_types[event_id])); @@ -550,7 +522,6 @@ static const char acpi_gbl_bad_type[] = "UNDEFINED"; /* Printable names of the ACPI object types */ static const char *acpi_gbl_ns_type_names[] = { -/*! [Begin] no source code translation (keep these strings as-is) */ /* 00 */ "Untyped", /* 01 */ "Integer", /* 02 */ "String", @@ -582,7 +553,6 @@ static const char *acpi_gbl_ns_type_names[] = { /* 28 */ "Extra", /* 29 */ "Data", /* 30 */ "Invalid" -/*! [End] no source code translation !*/ }; char *acpi_ut_get_type_name(acpi_object_type type) @@ -635,14 +605,14 @@ char *acpi_ut_get_node_name(void *object) /* Descriptor must be a namespace node */ - if (node->descriptor != ACPI_DESC_TYPE_NAMED) { + if (ACPI_GET_DESCRIPTOR_TYPE(node) != ACPI_DESC_TYPE_NAMED) { return ("####"); } /* Name must be a valid ACPI name */ if (!acpi_ut_valid_acpi_name(node->name.integer)) { - return ("????"); + node->name.integer = acpi_ut_repair_name(node->name.integer); } /* Return the name */ @@ -665,7 +635,6 @@ char *acpi_ut_get_node_name(void *object) /* Printable names of object descriptor types */ static const char *acpi_gbl_desc_type_names[] = { -/*! [Begin] no source code translation (keep these ASL Keywords as-is) */ /* 00 */ "Invalid", /* 01 */ "Cached", /* 02 */ "State-Generic", @@ -682,7 +651,6 @@ static const char *acpi_gbl_desc_type_names[] = { /* 13 */ "Parser", /* 14 */ "Operand", /* 15 */ "Node" -/*! [End] no source code translation !*/ }; char *acpi_ut_get_descriptor_name(void *object) @@ -723,7 +691,7 @@ char *acpi_ut_get_descriptor_name(void *object) char *acpi_ut_get_mutex_name(u32 mutex_id) { - if (mutex_id > MAX_MUTEX) { + if (mutex_id > ACPI_MAX_MUTEX) { return ("Invalid Mutex ID"); } @@ -747,6 +715,7 @@ u8 acpi_ut_valid_object_type(acpi_object_type type) { if (type > ACPI_TYPE_LOCAL_MAX) { + /* Note: Assumes all TYPEs are contiguous (external/local) */ return (FALSE); @@ -773,7 +742,7 @@ void acpi_ut_init_globals(void) acpi_status status; u32 i; - ACPI_FUNCTION_TRACE("ut_init_globals"); + ACPI_FUNCTION_TRACE(ut_init_globals); /* Create all memory caches */ @@ -784,14 +753,14 @@ void acpi_ut_init_globals(void) /* ACPI table structure */ - for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) { + for (i = 0; i < (ACPI_TABLE_ID_MAX + 1); i++) { acpi_gbl_table_lists[i].next = NULL; acpi_gbl_table_lists[i].count = 0; } /* Mutex locked flags */ - for (i = 0; i < NUM_MUTEX; i++) { + for (i = 0; i < ACPI_NUM_MUTEX; i++) { acpi_gbl_mutex_info[i].mutex = NULL; acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; acpi_gbl_mutex_info[i].use_count = 0; @@ -856,7 +825,7 @@ void acpi_ut_init_globals(void) acpi_gbl_root_node = NULL; acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; - acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED; + acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; acpi_gbl_root_node_struct.child = NULL; acpi_gbl_root_node_struct.peer = NULL; @@ -869,3 +838,6 @@ void acpi_ut_init_globals(void) return_VOID; } + +ACPI_EXPORT_SYMBOL(acpi_dbg_level) +ACPI_EXPORT_SYMBOL(acpi_dbg_layer) diff --git a/drivers/acpi/utilities/utinit.c b/drivers/acpi/utilities/utinit.c index ba771b4f39bc..ff76055eb7d6 100644 --- a/drivers/acpi/utilities/utinit.c +++ b/drivers/acpi/utilities/utinit.c @@ -50,7 +50,7 @@ ACPI_MODULE_NAME("utinit") /* Local prototypes */ static void -acpi_ut_fadt_register_error(char *register_name, u32 value, acpi_size offset); +acpi_ut_fadt_register_error(char *register_name, u32 value, u8 offset); static void acpi_ut_terminate(void); @@ -69,12 +69,12 @@ static void acpi_ut_terminate(void); ******************************************************************************/ static void -acpi_ut_fadt_register_error(char *register_name, u32 value, acpi_size offset) +acpi_ut_fadt_register_error(char *register_name, u32 value, u8 offset) { ACPI_WARNING((AE_INFO, "Invalid FADT value %s=%X at offset %X FADT=%p", - register_name, value, (u32) offset, acpi_gbl_FADT)); + register_name, value, offset, acpi_gbl_FADT)); } /****************************************************************************** @@ -176,7 +176,7 @@ static void acpi_ut_terminate(void) struct acpi_gpe_xrupt_info *gpe_xrupt_info; struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; - ACPI_FUNCTION_TRACE("ut_terminate"); + ACPI_FUNCTION_TRACE(ut_terminate); /* Free global tables, etc. */ /* Free global GPE blocks and related info structures */ @@ -186,14 +186,14 @@ static void acpi_ut_terminate(void) gpe_block = gpe_xrupt_info->gpe_block_list_head; while (gpe_block) { next_gpe_block = gpe_block->next; - ACPI_MEM_FREE(gpe_block->event_info); - ACPI_MEM_FREE(gpe_block->register_info); - ACPI_MEM_FREE(gpe_block); + ACPI_FREE(gpe_block->event_info); + ACPI_FREE(gpe_block->register_info); + ACPI_FREE(gpe_block); gpe_block = next_gpe_block; } next_gpe_xrupt_info = gpe_xrupt_info->next; - ACPI_MEM_FREE(gpe_xrupt_info); + ACPI_FREE(gpe_xrupt_info); gpe_xrupt_info = next_gpe_xrupt_info; } @@ -216,7 +216,7 @@ static void acpi_ut_terminate(void) void acpi_ut_subsystem_shutdown(void) { - ACPI_FUNCTION_TRACE("ut_subsystem_shutdown"); + ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); /* Just exit if subsystem is already shutdown */ @@ -228,6 +228,7 @@ void acpi_ut_subsystem_shutdown(void) /* Subsystem appears active, go ahead and shut it down */ acpi_gbl_shutdown = TRUE; + acpi_gbl_startup_flags = 0; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); /* Close the acpi_event Handling */ @@ -245,12 +246,5 @@ void acpi_ut_subsystem_shutdown(void) /* Purge the local caches */ (void)acpi_ut_delete_caches(); - - /* Debug only - display leftover memory allocation, if any */ - -#ifdef ACPI_DBG_TRACK_ALLOCATIONS - acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL); -#endif - return_VOID; } diff --git a/drivers/acpi/utilities/utmath.c b/drivers/acpi/utilities/utmath.c index 4a3360484e72..19d74bedce27 100644 --- a/drivers/acpi/utilities/utmath.c +++ b/drivers/acpi/utilities/utmath.c @@ -77,7 +77,7 @@ acpi_ut_short_divide(acpi_integer dividend, union uint64_overlay quotient; u32 remainder32; - ACPI_FUNCTION_TRACE("ut_short_divide"); + ACPI_FUNCTION_TRACE(ut_short_divide); /* Always check for a zero divisor */ @@ -139,7 +139,7 @@ acpi_ut_divide(acpi_integer in_dividend, union uint64_overlay partial2; union uint64_overlay partial3; - ACPI_FUNCTION_TRACE("ut_divide"); + ACPI_FUNCTION_TRACE(ut_divide); /* Always check for a zero divisor */ @@ -261,7 +261,7 @@ acpi_ut_short_divide(acpi_integer in_dividend, acpi_integer * out_quotient, u32 * out_remainder) { - ACPI_FUNCTION_TRACE("ut_short_divide"); + ACPI_FUNCTION_TRACE(ut_short_divide); /* Always check for a zero divisor */ @@ -287,7 +287,7 @@ acpi_ut_divide(acpi_integer in_dividend, acpi_integer in_divisor, acpi_integer * out_quotient, acpi_integer * out_remainder) { - ACPI_FUNCTION_TRACE("ut_divide"); + ACPI_FUNCTION_TRACE(ut_divide); /* Always check for a zero divisor */ diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c index 7364f5f8c9cd..5c75d35ad1cd 100644 --- a/drivers/acpi/utilities/utmisc.c +++ b/drivers/acpi/utilities/utmisc.c @@ -49,6 +49,33 @@ ACPI_MODULE_NAME("utmisc") /******************************************************************************* * + * FUNCTION: acpi_ut_is_aml_table + * + * PARAMETERS: Table - An ACPI table + * + * RETURN: TRUE if table contains executable AML; FALSE otherwise + * + * DESCRIPTION: Check ACPI Signature for a table that contains AML code. + * Currently, these are DSDT,SSDT,PSDT. All other table types are + * data tables that do not contain AML code. + * + ******************************************************************************/ +u8 acpi_ut_is_aml_table(struct acpi_table_header *table) +{ + + /* Ignore tables that contain AML */ + + if (ACPI_COMPARE_NAME(table->signature, DSDT_SIG) || + ACPI_COMPARE_NAME(table->signature, PSDT_SIG) || + ACPI_COMPARE_NAME(table->signature, SSDT_SIG)) { + return (TRUE); + } + + return (FALSE); +} + +/******************************************************************************* + * * FUNCTION: acpi_ut_allocate_owner_id * * PARAMETERS: owner_id - Where the new owner ID is returned @@ -60,6 +87,7 @@ ACPI_MODULE_NAME("utmisc") * when the method exits or the table is unloaded. * ******************************************************************************/ + acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) { acpi_native_uint i; @@ -67,7 +95,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) acpi_native_uint k; acpi_status status; - ACPI_FUNCTION_TRACE("ut_allocate_owner_id"); + ACPI_FUNCTION_TRACE(ut_allocate_owner_id); /* Guard against multiple allocations of ID to the same location */ @@ -97,6 +125,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) for (k = acpi_gbl_next_owner_id_offset; k < 32; k++) { if (acpi_gbl_owner_id_mask[j] == ACPI_UINT32_MAX) { + /* There are no free IDs in this mask */ break; @@ -123,7 +152,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) (acpi_owner_id) ((k + 1) + ACPI_MUL_32(j)); ACPI_DEBUG_PRINT((ACPI_DB_VALUES, - "Allocated owner_id: %2.2X\n", + "Allocated OwnerId: %2.2X\n", (unsigned int)*owner_id)); goto exit; } @@ -144,7 +173,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) */ status = AE_OWNER_ID_LIMIT; ACPI_ERROR((AE_INFO, - "Could not allocate new owner_id (255 max), AE_OWNER_ID_LIMIT")); + "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT")); exit: (void)acpi_ut_release_mutex(ACPI_MTX_CACHES); @@ -172,7 +201,7 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) acpi_native_uint index; u32 bit; - ACPI_FUNCTION_TRACE_U32("ut_release_owner_id", owner_id); + ACPI_FUNCTION_TRACE_U32(ut_release_owner_id, owner_id); /* Always clear the input owner_id (zero is an invalid ID) */ @@ -181,7 +210,7 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) /* Zero is not a valid owner_iD */ if (owner_id == 0) { - ACPI_ERROR((AE_INFO, "Invalid owner_id: %2.2X", owner_id)); + ACPI_ERROR((AE_INFO, "Invalid OwnerId: %2.2X", owner_id)); return_VOID; } @@ -207,7 +236,7 @@ void acpi_ut_release_owner_id(acpi_owner_id * owner_id_ptr) acpi_gbl_owner_id_mask[index] ^= bit; } else { ACPI_ERROR((AE_INFO, - "Release of non-allocated owner_id: %2.2X", + "Release of non-allocated OwnerId: %2.2X", owner_id + 1)); } @@ -273,6 +302,7 @@ void acpi_ut_print_string(char *string, u8 max_length) acpi_os_printf("\""); for (i = 0; string[i] && (i < max_length); i++) { + /* Escape sequences */ switch (string[i]) { @@ -461,12 +491,47 @@ acpi_ut_display_init_pathname(u8 type, } acpi_os_printf("\n"); - ACPI_MEM_FREE(buffer.pointer); + ACPI_FREE(buffer.pointer); } #endif /******************************************************************************* * + * FUNCTION: acpi_ut_valid_acpi_char + * + * PARAMETERS: Char - The character to be examined + * + * RETURN: TRUE if the character is valid, FALSE otherwise + * + * DESCRIPTION: Check for a valid ACPI character. Must be one of: + * 1) Upper case alpha + * 2) numeric + * 3) underscore + * + * We allow a '!' as the last character because of the ASF! table + * + ******************************************************************************/ + +u8 acpi_ut_valid_acpi_char(char character, acpi_native_uint position) +{ + + if (!((character >= 'A' && character <= 'Z') || + (character >= '0' && character <= '9') || (character == '_'))) { + + /* Allow a '!' in the last position */ + + if (character == '!' && position == 3) { + return (TRUE); + } + + return (FALSE); + } + + return (TRUE); +} + +/******************************************************************************* + * * FUNCTION: acpi_ut_valid_acpi_name * * PARAMETERS: Name - The name to be examined @@ -482,19 +547,13 @@ acpi_ut_display_init_pathname(u8 type, u8 acpi_ut_valid_acpi_name(u32 name) { - char *name_ptr = (char *)&name; - char character; acpi_native_uint i; ACPI_FUNCTION_ENTRY(); for (i = 0; i < ACPI_NAME_SIZE; i++) { - character = *name_ptr; - name_ptr++; - - if (!((character == '_') || - (character >= 'A' && character <= 'Z') || - (character >= '0' && character <= '9'))) { + if (!acpi_ut_valid_acpi_char + ((ACPI_CAST_PTR(char, &name))[i], i)) { return (FALSE); } } @@ -504,24 +563,37 @@ u8 acpi_ut_valid_acpi_name(u32 name) /******************************************************************************* * - * FUNCTION: acpi_ut_valid_acpi_character + * FUNCTION: acpi_ut_repair_name * - * PARAMETERS: Character - The character to be examined + * PARAMETERS: Name - The ACPI name to be repaired * - * RETURN: 1 if Character may appear in a name, else 0 + * RETURN: Repaired version of the name * - * DESCRIPTION: Check for a printable character + * DESCRIPTION: Repair an ACPI name: Change invalid characters to '*' and + * return the new name. * ******************************************************************************/ -u8 acpi_ut_valid_acpi_character(char character) +acpi_name acpi_ut_repair_name(acpi_name name) { + char *name_ptr = ACPI_CAST_PTR(char, &name); + char new_name[ACPI_NAME_SIZE]; + acpi_native_uint i; - ACPI_FUNCTION_ENTRY(); + for (i = 0; i < ACPI_NAME_SIZE; i++) { + new_name[i] = name_ptr[i]; - return ((u8) ((character == '_') || - (character >= 'A' && character <= 'Z') || - (character >= '0' && character <= '9'))); + /* + * Replace a bad character with something printable, yet technically + * still invalid. This prevents any collisions with existing "good" + * names in the namespace. + */ + if (!acpi_ut_valid_acpi_char(name_ptr[i], i)) { + new_name[i] = '*'; + } + } + + return (*ACPI_CAST_PTR(u32, new_name)); } /******************************************************************************* @@ -529,7 +601,8 @@ u8 acpi_ut_valid_acpi_character(char character) * FUNCTION: acpi_ut_strtoul64 * * PARAMETERS: String - Null terminated string - * Base - Radix of the string: 10, 16, or ACPI_ANY_BASE + * Base - Radix of the string: 16 or ACPI_ANY_BASE; + * ACPI_ANY_BASE means 'in behalf of to_integer' * ret_integer - Where the converted integer is returned * * RETURN: Status and Converted value @@ -545,16 +618,17 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer) u32 this_digit = 0; acpi_integer return_value = 0; acpi_integer quotient; + acpi_integer dividend; + u32 to_integer_op = (base == ACPI_ANY_BASE); + u32 mode32 = (acpi_gbl_integer_byte_width == 4); + u8 valid_digits = 0; + u8 sign_of0x = 0; + u8 term = 0; - ACPI_FUNCTION_TRACE("ut_stroul64"); - - if ((!string) || !(*string)) { - goto error_exit; - } + ACPI_FUNCTION_TRACE(ut_stroul64); switch (base) { case ACPI_ANY_BASE: - case 10: case 16: break; @@ -563,76 +637,110 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer) return_ACPI_STATUS(AE_BAD_PARAMETER); } + if (!string) { + goto error_exit; + } + /* Skip over any white space in the buffer */ - while (ACPI_IS_SPACE(*string) || *string == '\t') { + while ((*string) && (ACPI_IS_SPACE(*string) || *string == '\t')) { string++; } - /* - * If the input parameter Base is zero, then we need to - * determine if it is decimal or hexadecimal: - */ - if (base == 0) { + if (to_integer_op) { + /* + * Base equal to ACPI_ANY_BASE means 'to_integer operation case'. + * We need to determine if it is decimal or hexadecimal. + */ if ((*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) { + sign_of0x = 1; base = 16; + + /* Skip over the leading '0x' */ string += 2; } else { base = 10; } } - /* - * For hexadecimal base, skip over the leading - * 0 or 0x, if they are present. - */ - if ((base == 16) && - (*string == '0') && (ACPI_TOLOWER(*(string + 1)) == 'x')) { - string += 2; + /* Any string left? Check that '0x' is not followed by white space. */ + + if (!(*string) || ACPI_IS_SPACE(*string) || *string == '\t') { + if (to_integer_op) { + goto error_exit; + } else { + goto all_done; + } } - /* Any string left? */ + dividend = (mode32) ? ACPI_UINT32_MAX : ACPI_UINT64_MAX; - if (!(*string)) { - goto error_exit; - } + /* At least one character in the string here */ /* Main loop: convert the string to a 64-bit integer */ while (*string) { if (ACPI_IS_DIGIT(*string)) { + /* Convert ASCII 0-9 to Decimal value */ this_digit = ((u8) * string) - '0'; - } else { - if (base == 10) { - /* Digit is out of range */ + } else if (base == 10) { - goto error_exit; - } + /* Digit is out of range; possible in to_integer case only */ + term = 1; + } else { this_digit = (u8) ACPI_TOUPPER(*string); if (ACPI_IS_XDIGIT((char)this_digit)) { + /* Convert ASCII Hex char to value */ this_digit = this_digit - 'A' + 10; } else { - /* - * We allow non-hex chars, just stop now, same as end-of-string. - * See ACPI spec, string-to-integer conversion. - */ + term = 1; + } + } + + if (term) { + if (to_integer_op) { + goto error_exit; + } else { break; } + } else if ((valid_digits == 0) && (this_digit == 0) + && !sign_of0x) { + + /* Skip zeros */ + string++; + continue; + } + + valid_digits++; + + if (sign_of0x + && ((valid_digits > 16) + || ((valid_digits > 8) && mode32))) { + /* + * This is to_integer operation case. + * No any restrictions for string-to-integer conversion, + * see ACPI spec. + */ + goto error_exit; } /* Divide the digit into the correct position */ (void) - acpi_ut_short_divide((ACPI_INTEGER_MAX - - (acpi_integer) this_digit), base, - "ient, NULL); + acpi_ut_short_divide((dividend - (acpi_integer) this_digit), + base, "ient, NULL); + if (return_value > quotient) { - goto error_exit; + if (to_integer_op) { + goto error_exit; + } else { + break; + } } return_value *= base; @@ -642,6 +750,8 @@ acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer) /* All done, normal exit */ + all_done: + *ret_integer = return_value; return_ACPI_STATUS(AE_OK); @@ -719,7 +829,7 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object, u32 this_index; union acpi_operand_object *this_source_obj; - ACPI_FUNCTION_TRACE("ut_walk_package_tree"); + ACPI_FUNCTION_TRACE(ut_walk_package_tree); state = acpi_ut_create_pkg_state(source_object, target_object, 0); if (!state) { @@ -727,6 +837,7 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object, } while (state) { + /* Get one element of the package */ this_index = state->pkg.index; @@ -814,31 +925,6 @@ acpi_ut_walk_package_tree(union acpi_operand_object * source_object, /******************************************************************************* * - * FUNCTION: acpi_ut_generate_checksum - * - * PARAMETERS: Buffer - Buffer to be scanned - * Length - number of bytes to examine - * - * RETURN: The generated checksum - * - * DESCRIPTION: Generate a checksum on a raw buffer - * - ******************************************************************************/ - -u8 acpi_ut_generate_checksum(u8 * buffer, u32 length) -{ - u32 i; - signed char sum = 0; - - for (i = 0; i < length; i++) { - sum = (signed char)(sum + buffer[i]); - } - - return ((u8) (0 - sum)); -} - -/******************************************************************************* - * * FUNCTION: acpi_ut_error, acpi_ut_warning, acpi_ut_info * * PARAMETERS: module_name - Caller's module name (for error output) @@ -900,36 +986,3 @@ acpi_ut_info(char *module_name, u32 line_number, char *format, ...) acpi_os_vprintf(format, args); acpi_os_printf(" [%X]\n", ACPI_CA_VERSION); } - -/******************************************************************************* - * - * FUNCTION: acpi_ut_report_error, Warning, Info - * - * PARAMETERS: module_name - Caller's module name (for error output) - * line_number - Caller's line number (for error output) - * - * RETURN: None - * - * DESCRIPTION: Print error message - * - * Note: Legacy only, should be removed when no longer used by drivers. - * - ******************************************************************************/ - -void acpi_ut_report_error(char *module_name, u32 line_number) -{ - - acpi_os_printf("ACPI Error (%s-%04d): ", module_name, line_number); -} - -void acpi_ut_report_warning(char *module_name, u32 line_number) -{ - - acpi_os_printf("ACPI Warning (%s-%04d): ", module_name, line_number); -} - -void acpi_ut_report_info(char *module_name, u32 line_number) -{ - - acpi_os_printf("ACPI (%s-%04d): ", module_name, line_number); -} diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c index 45a7244df924..25eb34369afa 100644 --- a/drivers/acpi/utilities/utmutex.c +++ b/drivers/acpi/utilities/utmutex.c @@ -68,19 +68,26 @@ acpi_status acpi_ut_mutex_initialize(void) u32 i; acpi_status status; - ACPI_FUNCTION_TRACE("ut_mutex_initialize"); + ACPI_FUNCTION_TRACE(ut_mutex_initialize); /* * Create each of the predefined mutex objects */ - for (i = 0; i < NUM_MUTEX; i++) { + for (i = 0; i < ACPI_NUM_MUTEX; i++) { status = acpi_ut_create_mutex(i); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } } + /* Create the spinlocks for use at interrupt level */ + status = acpi_os_create_lock(&acpi_gbl_gpe_lock); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + status = acpi_os_create_lock(&acpi_gbl_hardware_lock); return_ACPI_STATUS(status); } @@ -100,16 +107,19 @@ void acpi_ut_mutex_terminate(void) { u32 i; - ACPI_FUNCTION_TRACE("ut_mutex_terminate"); + ACPI_FUNCTION_TRACE(ut_mutex_terminate); /* * Delete each predefined mutex object */ - for (i = 0; i < NUM_MUTEX; i++) { + for (i = 0; i < ACPI_NUM_MUTEX; i++) { (void)acpi_ut_delete_mutex(i); } + /* Delete the spinlocks */ + acpi_os_delete_lock(acpi_gbl_gpe_lock); + acpi_os_delete_lock(acpi_gbl_hardware_lock); return_VOID; } @@ -129,9 +139,9 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_U32("ut_create_mutex", mutex_id); + ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id); - if (mutex_id > MAX_MUTEX) { + if (mutex_id > ACPI_MAX_MUTEX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -163,9 +173,9 @@ static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id) { acpi_status status; - ACPI_FUNCTION_TRACE_U32("ut_delete_mutex", mutex_id); + ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id); - if (mutex_id > MAX_MUTEX) { + if (mutex_id > ACPI_MAX_MUTEX) { return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -192,11 +202,11 @@ static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id) acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) { acpi_status status; - u32 this_thread_id; + acpi_thread_id this_thread_id; - ACPI_FUNCTION_NAME("ut_acquire_mutex"); + ACPI_FUNCTION_NAME(ut_acquire_mutex); - if (mutex_id > MAX_MUTEX) { + if (mutex_id > ACPI_MAX_MUTEX) { return (AE_BAD_PARAMETER); } @@ -213,7 +223,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) * the mutex ordering rule. This indicates a coding error somewhere in * the ACPI subsystem code. */ - for (i = mutex_id; i < MAX_MUTEX; i++) { + for (i = mutex_id; i < ACPI_MAX_MUTEX; i++) { if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) { if (i == mutex_id) { ACPI_ERROR((AE_INFO, @@ -275,16 +285,16 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id) acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id) { acpi_status status; - u32 this_thread_id; + acpi_thread_id this_thread_id; - ACPI_FUNCTION_NAME("ut_release_mutex"); + ACPI_FUNCTION_NAME(ut_release_mutex); this_thread_id = acpi_os_get_thread_id(); ACPI_DEBUG_PRINT((ACPI_DB_MUTEX, "Thread %X releasing Mutex [%s]\n", this_thread_id, acpi_ut_get_mutex_name(mutex_id))); - if (mutex_id > MAX_MUTEX) { + if (mutex_id > ACPI_MAX_MUTEX) { return (AE_BAD_PARAMETER); } @@ -309,7 +319,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id) * ordering rule. This indicates a coding error somewhere in * the ACPI subsystem code. */ - for (i = mutex_id; i < MAX_MUTEX; i++) { + for (i = mutex_id; i < ACPI_MAX_MUTEX; i++) { if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) { if (i == mutex_id) { continue; diff --git a/drivers/acpi/utilities/utobject.c b/drivers/acpi/utilities/utobject.c index 7ee2d1d98071..ba7d8ac702df 100644 --- a/drivers/acpi/utilities/utobject.c +++ b/drivers/acpi/utilities/utobject.c @@ -92,7 +92,7 @@ union acpi_operand_object *acpi_ut_create_internal_object_dbg(char *module_name, union acpi_operand_object *object; union acpi_operand_object *second_object; - ACPI_FUNCTION_TRACE_STR("ut_create_internal_object_dbg", + ACPI_FUNCTION_TRACE_STR(ut_create_internal_object_dbg, acpi_ut_get_type_name(type)); /* Allocate the raw object descriptor */ @@ -161,7 +161,7 @@ union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size) union acpi_operand_object *buffer_desc; u8 *buffer = NULL; - ACPI_FUNCTION_TRACE_U32("ut_create_buffer_object", buffer_size); + ACPI_FUNCTION_TRACE_U32(ut_create_buffer_object, buffer_size); /* Create a new Buffer object */ @@ -173,9 +173,10 @@ union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size) /* Create an actual buffer only if size > 0 */ if (buffer_size > 0) { + /* Allocate the actual buffer */ - buffer = ACPI_MEM_CALLOCATE(buffer_size); + buffer = ACPI_ALLOCATE_ZEROED(buffer_size); if (!buffer) { ACPI_ERROR((AE_INFO, "Could not allocate size %X", (u32) buffer_size)); @@ -214,7 +215,7 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size) union acpi_operand_object *string_desc; char *string; - ACPI_FUNCTION_TRACE_U32("ut_create_string_object", string_size); + ACPI_FUNCTION_TRACE_U32(ut_create_string_object, string_size); /* Create a new String object */ @@ -227,7 +228,7 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size) * Allocate the actual string buffer -- (Size + 1) for NULL terminator. * NOTE: Zero-length strings are NULL terminated */ - string = ACPI_MEM_CALLOCATE(string_size + 1); + string = ACPI_ALLOCATE_ZEROED(string_size + 1); if (!string) { ACPI_ERROR((AE_INFO, "Could not allocate size %X", (u32) string_size)); @@ -260,7 +261,7 @@ union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size) u8 acpi_ut_valid_internal_object(void *object) { - ACPI_FUNCTION_NAME("ut_valid_internal_object"); + ACPI_FUNCTION_NAME(ut_valid_internal_object); /* Check for a null pointer */ @@ -308,7 +309,7 @@ void *acpi_ut_allocate_object_desc_dbg(char *module_name, { union acpi_operand_object *object; - ACPI_FUNCTION_TRACE("ut_allocate_object_desc_dbg"); + ACPI_FUNCTION_TRACE(ut_allocate_object_desc_dbg); object = acpi_os_acquire_object(acpi_gbl_operand_cache); if (!object) { @@ -319,6 +320,7 @@ void *acpi_ut_allocate_object_desc_dbg(char *module_name, } /* Mark the descriptor type */ + memset(object, 0, sizeof(union acpi_operand_object)); ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND); @@ -342,7 +344,7 @@ void *acpi_ut_allocate_object_desc_dbg(char *module_name, void acpi_ut_delete_object_desc(union acpi_operand_object *object) { - ACPI_FUNCTION_TRACE_PTR("ut_delete_object_desc", object); + ACPI_FUNCTION_TRACE_PTR(ut_delete_object_desc, object); /* Object must be an union acpi_operand_object */ @@ -381,7 +383,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object, acpi_size length; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_PTR("ut_get_simple_object_size", internal_object); + ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object); /* * Handle a null object (Could be a uninitialized package @@ -397,6 +399,7 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object, length = sizeof(union acpi_object); if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) { + /* Object is a named object (reference), just return the length */ *obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length); @@ -559,7 +562,7 @@ acpi_ut_get_package_object_size(union acpi_operand_object *internal_object, acpi_status status; struct acpi_pkg_info info; - ACPI_FUNCTION_TRACE_PTR("ut_get_package_object_size", internal_object); + ACPI_FUNCTION_TRACE_PTR(ut_get_package_object_size, internal_object); info.length = 0; info.object_space = 0; diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c index 16461317113f..5a2de92831d3 100644 --- a/drivers/acpi/utilities/utresrc.c +++ b/drivers/acpi/utilities/utresrc.c @@ -45,113 +45,113 @@ #include <acpi/amlresrc.h> #define _COMPONENT ACPI_UTILITIES -ACPI_MODULE_NAME("utmisc") +ACPI_MODULE_NAME("utresrc") #if defined(ACPI_DISASSEMBLER) || defined (ACPI_DEBUGGER) /* * Strings used to decode resource descriptors. * Used by both the disasssembler and the debugger resource dump routines */ -const char *acpi_gbl_BMdecode[2] = { - "not_bus_master", - "bus_master" +const char *acpi_gbl_bm_decode[] = { + "NotBusMaster", + "BusMaster" }; -const char *acpi_gbl_config_decode[4] = { +const char *acpi_gbl_config_decode[] = { "0 - Good Configuration", "1 - Acceptable Configuration", "2 - Suboptimal Configuration", "3 - ***Invalid Configuration***", }; -const char *acpi_gbl_consume_decode[2] = { - "resource_producer", - "resource_consumer" +const char *acpi_gbl_consume_decode[] = { + "ResourceProducer", + "ResourceConsumer" }; -const char *acpi_gbl_DECdecode[2] = { - "pos_decode", - "sub_decode" +const char *acpi_gbl_dec_decode[] = { + "PosDecode", + "SubDecode" }; -const char *acpi_gbl_HEdecode[2] = { +const char *acpi_gbl_he_decode[] = { "Level", "Edge" }; -const char *acpi_gbl_io_decode[2] = { +const char *acpi_gbl_io_decode[] = { "Decode10", "Decode16" }; -const char *acpi_gbl_LLdecode[2] = { - "active_high", - "active_low" +const char *acpi_gbl_ll_decode[] = { + "ActiveHigh", + "ActiveLow" }; -const char *acpi_gbl_max_decode[2] = { - "max_not_fixed", - "max_fixed" +const char *acpi_gbl_max_decode[] = { + "MaxNotFixed", + "MaxFixed" }; -const char *acpi_gbl_MEMdecode[4] = { - "non_cacheable", +const char *acpi_gbl_mem_decode[] = { + "NonCacheable", "Cacheable", - "write_combining", + "WriteCombining", "Prefetchable" }; -const char *acpi_gbl_min_decode[2] = { - "min_not_fixed", - "min_fixed" +const char *acpi_gbl_min_decode[] = { + "MinNotFixed", + "MinFixed" }; -const char *acpi_gbl_MTPdecode[4] = { - "address_range_memory", - "address_range_reserved", - "address_range_aCPI", - "address_range_nVS" +const char *acpi_gbl_mtp_decode[] = { + "AddressRangeMemory", + "AddressRangeReserved", + "AddressRangeACPI", + "AddressRangeNVS" }; -const char *acpi_gbl_RNGdecode[4] = { - "invalid_ranges", - "non_iSAonly_ranges", - "ISAonly_ranges", - "entire_range" +const char *acpi_gbl_rng_decode[] = { + "InvalidRanges", + "NonISAOnlyRanges", + "ISAOnlyRanges", + "EntireRange" }; -const char *acpi_gbl_RWdecode[2] = { - "read_only", - "read_write" +const char *acpi_gbl_rw_decode[] = { + "ReadOnly", + "ReadWrite" }; -const char *acpi_gbl_SHRdecode[2] = { +const char *acpi_gbl_shr_decode[] = { "Exclusive", "Shared" }; -const char *acpi_gbl_SIZdecode[4] = { +const char *acpi_gbl_siz_decode[] = { "Transfer8", "Transfer8_16", "Transfer16", - "invalid_size" + "InvalidSize" }; -const char *acpi_gbl_TRSdecode[2] = { - "dense_translation", - "sparse_translation" +const char *acpi_gbl_trs_decode[] = { + "DenseTranslation", + "SparseTranslation" }; -const char *acpi_gbl_TTPdecode[2] = { - "type_static", - "type_translation" +const char *acpi_gbl_ttp_decode[] = { + "TypeStatic", + "TypeTranslation" }; -const char *acpi_gbl_TYPdecode[4] = { +const char *acpi_gbl_typ_decode[] = { "Compatibility", - "type_a", - "type_b", - "type_f" + "TypeA", + "TypeB", + "TypeF" }; #endif @@ -240,6 +240,104 @@ static const u8 acpi_gbl_resource_types[] = { /******************************************************************************* * + * FUNCTION: acpi_ut_walk_aml_resources + * + * PARAMETERS: Aml - Pointer to the raw AML resource template + * aml_length - Length of the entire template + * user_function - Called once for each descriptor found. If + * NULL, a pointer to the end_tag is returned + * Context - Passed to user_function + * + * RETURN: Status + * + * DESCRIPTION: Walk a raw AML resource list(buffer). User function called + * once for each resource found. + * + ******************************************************************************/ + +acpi_status +acpi_ut_walk_aml_resources(u8 * aml, + acpi_size aml_length, + acpi_walk_aml_callback user_function, void **context) +{ + acpi_status status; + u8 *end_aml; + u8 resource_index; + u32 length; + u32 offset = 0; + + ACPI_FUNCTION_TRACE(ut_walk_aml_resources); + + /* The absolute minimum resource template is one end_tag descriptor */ + + if (aml_length < sizeof(struct aml_resource_end_tag)) { + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); + } + + /* Point to the end of the resource template buffer */ + + end_aml = aml + aml_length; + + /* Walk the byte list, abort on any invalid descriptor type or length */ + + while (aml < end_aml) { + + /* Validate the Resource Type and Resource Length */ + + status = acpi_ut_validate_resource(aml, &resource_index); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the length of this descriptor */ + + length = acpi_ut_get_descriptor_length(aml); + + /* Invoke the user function */ + + if (user_function) { + status = + user_function(aml, length, offset, resource_index, + context); + if (ACPI_FAILURE(status)) { + return (status); + } + } + + /* An end_tag descriptor terminates this resource template */ + + if (acpi_ut_get_resource_type(aml) == + ACPI_RESOURCE_NAME_END_TAG) { + /* + * There must be at least one more byte in the buffer for + * the 2nd byte of the end_tag + */ + if ((aml + 1) >= end_aml) { + return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); + } + + /* Return the pointer to the end_tag if requested */ + + if (!user_function) { + *context = aml; + } + + /* Normal exit */ + + return_ACPI_STATUS(AE_OK); + } + + aml += length; + offset += length; + } + + /* Did not find an end_tag descriptor */ + + return (AE_AML_NO_RESOURCE_END_TAG); +} + +/******************************************************************************* + * * FUNCTION: acpi_ut_validate_resource * * PARAMETERS: Aml - Pointer to the raw AML resource descriptor @@ -273,6 +371,7 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index) * Examine the large/small bit in the resource header */ if (resource_type & ACPI_RESOURCE_NAME_LARGE) { + /* Verify the large resource type (name) against the max */ if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { @@ -376,6 +475,7 @@ u8 acpi_ut_get_resource_type(void *aml) * Examine the large/small bit in the resource header */ if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource Type -- bits 6:0 contain the name */ return (ACPI_GET8(aml)); @@ -411,6 +511,7 @@ u16 acpi_ut_get_resource_length(void *aml) * Examine the large/small bit in the resource header */ if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { + /* Large Resource type -- bytes 1-2 contain the 16-bit length */ ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1)); @@ -495,60 +596,21 @@ acpi_ut_get_resource_end_tag(union acpi_operand_object * obj_desc, u8 ** end_tag) { acpi_status status; - u8 *aml; - u8 *end_aml; - - ACPI_FUNCTION_TRACE("ut_get_resource_end_tag"); - /* Get start and end pointers */ - - aml = obj_desc->buffer.pointer; - end_aml = aml + obj_desc->buffer.length; + ACPI_FUNCTION_TRACE(ut_get_resource_end_tag); /* Allow a buffer length of zero */ if (!obj_desc->buffer.length) { - *end_tag = aml; + *end_tag = obj_desc->buffer.pointer; return_ACPI_STATUS(AE_OK); } - /* Walk the resource template, one descriptor per iteration */ - - while (aml < end_aml) { - /* Validate the Resource Type and Resource Length */ - - status = acpi_ut_validate_resource(aml, NULL); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* end_tag resource indicates the end of the resource template */ - - if (acpi_ut_get_resource_type(aml) == - ACPI_RESOURCE_NAME_END_TAG) { - /* - * There must be at least one more byte in the buffer for - * the 2nd byte of the end_tag - */ - if ((aml + 1) >= end_aml) { - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); - } - - /* Return the pointer to the end_tag */ - - *end_tag = aml; - return_ACPI_STATUS(AE_OK); - } - - /* - * Point to the next resource descriptor in the AML buffer. The - * descriptor length is guaranteed to be non-zero by resource - * validation above. - */ - aml += acpi_ut_get_descriptor_length(aml); - } + /* Validate the template and get a pointer to the end_tag */ - /* Did not find an end_tag resource descriptor */ + status = acpi_ut_walk_aml_resources(obj_desc->buffer.pointer, + obj_desc->buffer.length, NULL, + (void **)end_tag); - return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/utilities/utstate.c b/drivers/acpi/utilities/utstate.c index 4b134a722907..0f5c5bb5deff 100644 --- a/drivers/acpi/utilities/utstate.c +++ b/drivers/acpi/utilities/utstate.c @@ -96,7 +96,7 @@ void acpi_ut_push_generic_state(union acpi_generic_state **list_head, union acpi_generic_state *state) { - ACPI_FUNCTION_TRACE("ut_push_generic_state"); + ACPI_FUNCTION_TRACE(ut_push_generic_state); /* Push the state object onto the front of the list (stack) */ @@ -123,12 +123,13 @@ union acpi_generic_state *acpi_ut_pop_generic_state(union acpi_generic_state { union acpi_generic_state *state; - ACPI_FUNCTION_TRACE("ut_pop_generic_state"); + ACPI_FUNCTION_TRACE(ut_pop_generic_state); /* Remove the state object at the head of the list (stack) */ state = *list_head; if (state) { + /* Update the list head */ *list_head = state->common.next; @@ -158,9 +159,10 @@ union acpi_generic_state *acpi_ut_create_generic_state(void) state = acpi_os_acquire_object(acpi_gbl_state_cache); if (state) { + /* Initialize */ memset(state, 0, sizeof(union acpi_generic_state)); - state->common.data_type = ACPI_DESC_TYPE_STATE; + state->common.descriptor_type = ACPI_DESC_TYPE_STATE; } return (state); @@ -183,7 +185,7 @@ struct acpi_thread_state *acpi_ut_create_thread_state(void) { union acpi_generic_state *state; - ACPI_FUNCTION_TRACE("ut_create_thread_state"); + ACPI_FUNCTION_TRACE(ut_create_thread_state); /* Create the generic state object */ @@ -194,7 +196,7 @@ struct acpi_thread_state *acpi_ut_create_thread_state(void) /* Init fields specific to the update struct */ - state->common.data_type = ACPI_DESC_TYPE_STATE_THREAD; + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_THREAD; state->thread.thread_id = acpi_os_get_thread_id(); return_PTR((struct acpi_thread_state *)state); @@ -220,7 +222,7 @@ union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object { union acpi_generic_state *state; - ACPI_FUNCTION_TRACE_PTR("ut_create_update_state", object); + ACPI_FUNCTION_TRACE_PTR(ut_create_update_state, object); /* Create the generic state object */ @@ -231,7 +233,7 @@ union acpi_generic_state *acpi_ut_create_update_state(union acpi_operand_object /* Init fields specific to the update struct */ - state->common.data_type = ACPI_DESC_TYPE_STATE_UPDATE; + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_UPDATE; state->update.object = object; state->update.value = action; @@ -257,7 +259,7 @@ union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object, { union acpi_generic_state *state; - ACPI_FUNCTION_TRACE_PTR("ut_create_pkg_state", internal_object); + ACPI_FUNCTION_TRACE_PTR(ut_create_pkg_state, internal_object); /* Create the generic state object */ @@ -268,7 +270,7 @@ union acpi_generic_state *acpi_ut_create_pkg_state(void *internal_object, /* Init fields specific to the update struct */ - state->common.data_type = ACPI_DESC_TYPE_STATE_PACKAGE; + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_PACKAGE; state->pkg.source_object = (union acpi_operand_object *)internal_object; state->pkg.dest_object = external_object; state->pkg.index = index; @@ -294,7 +296,7 @@ union acpi_generic_state *acpi_ut_create_control_state(void) { union acpi_generic_state *state; - ACPI_FUNCTION_TRACE("ut_create_control_state"); + ACPI_FUNCTION_TRACE(ut_create_control_state); /* Create the generic state object */ @@ -305,7 +307,7 @@ union acpi_generic_state *acpi_ut_create_control_state(void) /* Init fields specific to the control struct */ - state->common.data_type = ACPI_DESC_TYPE_STATE_CONTROL; + state->common.descriptor_type = ACPI_DESC_TYPE_STATE_CONTROL; state->common.state = ACPI_CONTROL_CONDITIONAL_EXECUTING; return_PTR(state); @@ -319,15 +321,19 @@ union acpi_generic_state *acpi_ut_create_control_state(void) * * RETURN: None * - * DESCRIPTION: Put a state object back into the global state cache. The object - * is not actually freed at this time. + * DESCRIPTION: Release a state object to the state cache. NULL state objects + * are ignored. * ******************************************************************************/ void acpi_ut_delete_generic_state(union acpi_generic_state *state) { - ACPI_FUNCTION_TRACE("ut_delete_generic_state"); + ACPI_FUNCTION_TRACE(ut_delete_generic_state); + + /* Ignore null state */ - (void)acpi_os_release_object(acpi_gbl_state_cache, state); + if (state) { + (void)acpi_os_release_object(acpi_gbl_state_cache, state); + } return_VOID; } diff --git a/drivers/acpi/utilities/utxface.c b/drivers/acpi/utilities/utxface.c index 308a960871be..3538f69c82a1 100644 --- a/drivers/acpi/utilities/utxface.c +++ b/drivers/acpi/utilities/utxface.c @@ -41,8 +41,6 @@ * POSSIBILITY OF SUCH DAMAGES. */ -#include <linux/module.h> - #include <acpi/acpi.h> #include <acpi/acevents.h> #include <acpi/acnamesp.h> @@ -67,7 +65,7 @@ acpi_status acpi_initialize_subsystem(void) { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_initialize_subsystem"); + ACPI_FUNCTION_TRACE(acpi_initialize_subsystem); ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace()); @@ -109,6 +107,8 @@ acpi_status acpi_initialize_subsystem(void) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_initialize_subsystem) + /******************************************************************************* * * FUNCTION: acpi_enable_subsystem @@ -121,12 +121,11 @@ acpi_status acpi_initialize_subsystem(void) * Puts system into ACPI mode if it isn't already. * ******************************************************************************/ - acpi_status acpi_enable_subsystem(u32 flags) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("acpi_enable_subsystem"); + ACPI_FUNCTION_TRACE(acpi_enable_subsystem); /* * We must initialize the hardware before we can enable ACPI. @@ -152,7 +151,7 @@ acpi_status acpi_enable_subsystem(u32 flags) status = acpi_enable(); if (ACPI_FAILURE(status)) { - ACPI_WARNING((AE_INFO, "acpi_enable failed")); + ACPI_WARNING((AE_INFO, "AcpiEnable failed")); return_ACPI_STATUS(status); } } @@ -229,6 +228,8 @@ acpi_status acpi_enable_subsystem(u32 flags) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_enable_subsystem) + /******************************************************************************* * * FUNCTION: acpi_initialize_objects @@ -241,12 +242,11 @@ acpi_status acpi_enable_subsystem(u32 flags) * objects and executing AML code for Regions, buffers, etc. * ******************************************************************************/ - acpi_status acpi_initialize_objects(u32 flags) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("acpi_initialize_objects"); + ACPI_FUNCTION_TRACE(acpi_initialize_objects); /* * Run all _REG methods @@ -257,7 +257,7 @@ acpi_status acpi_initialize_objects(u32 flags) */ if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Init] Executing _REG op_region methods\n")); + "[Init] Executing _REG OpRegion methods\n")); status = acpi_ev_initialize_op_regions(); if (ACPI_FAILURE(status)) { @@ -305,6 +305,8 @@ acpi_status acpi_initialize_objects(u32 flags) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_initialize_objects) + /******************************************************************************* * * FUNCTION: acpi_terminate @@ -316,12 +318,11 @@ acpi_status acpi_initialize_objects(u32 flags) * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources. * ******************************************************************************/ - acpi_status acpi_terminate(void) { acpi_status status; - ACPI_FUNCTION_TRACE("acpi_terminate"); + ACPI_FUNCTION_TRACE(acpi_terminate); /* Terminate the AML Debugger if present */ @@ -348,6 +349,8 @@ acpi_status acpi_terminate(void) return_ACPI_STATUS(status); } +ACPI_EXPORT_SYMBOL(acpi_terminate) + #ifdef ACPI_FUTURE_USAGE /******************************************************************************* * @@ -362,7 +365,6 @@ acpi_status acpi_terminate(void) * initialized successfully. * ******************************************************************************/ - acpi_status acpi_subsystem_status(void) { @@ -373,6 +375,8 @@ acpi_status acpi_subsystem_status(void) } } +ACPI_EXPORT_SYMBOL(acpi_subsystem_status) + /******************************************************************************* * * FUNCTION: acpi_get_system_info @@ -390,14 +394,13 @@ acpi_status acpi_subsystem_status(void) * and the value of out_buffer is undefined. * ******************************************************************************/ - acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer) { struct acpi_system_info *info_ptr; acpi_status status; u32 i; - ACPI_FUNCTION_TRACE("acpi_get_system_info"); + ACPI_FUNCTION_TRACE(acpi_get_system_info); /* Parameter validation */ @@ -448,15 +451,15 @@ acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer) /* Current status of the ACPI tables, per table type */ - info_ptr->num_table_types = NUM_ACPI_TABLE_TYPES; - for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) { + info_ptr->num_table_types = ACPI_TABLE_ID_MAX + 1; + for (i = 0; i < (ACPI_TABLE_ID_MAX + 1); i++) { info_ptr->table_info[i].count = acpi_gbl_table_lists[i].count; } return_ACPI_STATUS(AE_OK); } -EXPORT_SYMBOL(acpi_get_system_info); +ACPI_EXPORT_SYMBOL(acpi_get_system_info) /***************************************************************************** * @@ -472,7 +475,6 @@ EXPORT_SYMBOL(acpi_get_system_info); * TBD: When a second function is added, must save the Function also. * ****************************************************************************/ - acpi_status acpi_install_initialization_handler(acpi_init_handler handler, u32 function) { @@ -489,6 +491,7 @@ acpi_install_initialization_handler(acpi_init_handler handler, u32 function) return AE_OK; } +ACPI_EXPORT_SYMBOL(acpi_install_initialization_handler) #endif /* ACPI_FUTURE_USAGE */ /***************************************************************************** @@ -502,10 +505,9 @@ acpi_install_initialization_handler(acpi_init_handler handler, u32 function) * DESCRIPTION: Empty all caches (delete the cached objects) * ****************************************************************************/ - acpi_status acpi_purge_cached_objects(void) { - ACPI_FUNCTION_TRACE("acpi_purge_cached_objects"); + ACPI_FUNCTION_TRACE(acpi_purge_cached_objects); (void)acpi_os_purge_cache(acpi_gbl_state_cache); (void)acpi_os_purge_cache(acpi_gbl_operand_cache); @@ -513,3 +515,5 @@ acpi_status acpi_purge_cached_objects(void) (void)acpi_os_purge_cache(acpi_gbl_ps_node_ext_cache); return_ACPI_STATUS(AE_OK); } + +ACPI_EXPORT_SYMBOL(acpi_purge_cached_objects) diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 6458c47f7ac2..6b516852ac12 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -273,11 +273,13 @@ acpi_evaluate_integer(acpi_handle handle, status = acpi_evaluate_object(handle, pathname, arguments, &buffer); if (ACPI_FAILURE(status)) { acpi_util_eval_error(handle, pathname, status); + kfree(element); return_ACPI_STATUS(status); } if (element->type != ACPI_TYPE_INTEGER) { acpi_util_eval_error(handle, pathname, AE_BAD_DATA); + kfree(element); return_ACPI_STATUS(AE_BAD_DATA); } diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index bd4887518373..e7e9a693953a 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -323,7 +323,7 @@ acpi_video_device_lcd_query_levels(struct acpi_video_device *device, if (!ACPI_SUCCESS(status)) return_VALUE(status); obj = (union acpi_object *)buffer.pointer; - if (!obj && (obj->type != ACPI_TYPE_PACKAGE)) { + if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid _BCL data\n")); status = -EFAULT; goto err; @@ -1294,7 +1294,7 @@ acpi_video_bus_get_one_device(struct acpi_device *device, struct acpi_video_bus *video) { unsigned long device_id; - int status, result; + int status; struct acpi_video_device *data; ACPI_FUNCTION_TRACE("acpi_video_bus_get_one_device"); @@ -1346,8 +1346,11 @@ acpi_video_bus_get_one_device(struct acpi_device *device, if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error installing notify handler\n")); - result = -ENODEV; - goto end; + if(data->brightness) + kfree(data->brightness->levels); + kfree(data->brightness); + kfree(data); + return -ENODEV; } down(&video->sem); @@ -1359,7 +1362,6 @@ acpi_video_bus_get_one_device(struct acpi_device *device, return_VALUE(0); } - end: return_VALUE(-ENOENT); } @@ -1643,8 +1645,9 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video) printk(KERN_WARNING PREFIX "hhuuhhuu bug in acpi video driver.\n"); + if (data->brightness) + kfree(data->brightness->levels); kfree(data->brightness); - kfree(data); } @@ -1785,6 +1788,10 @@ static int acpi_video_bus_add(struct acpi_device *device) if (ACPI_FAILURE(status)) { ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Error installing notify handler\n")); + acpi_video_bus_stop_devices(video); + acpi_video_bus_put_devices(video); + kfree(video->attached_array); + acpi_video_bus_remove_fs(device); result = -ENODEV; goto end; } @@ -1796,10 +1803,8 @@ static int acpi_video_bus_add(struct acpi_device *device) video->flags.post ? "yes" : "no"); end: - if (result) { - acpi_video_bus_remove_fs(device); + if (result) kfree(video); - } return_VALUE(result); } |