diff options
Diffstat (limited to 'drivers/acpi/acpica')
| -rw-r--r-- | drivers/acpi/acpica/acdebug.h | 1 | ||||
| -rw-r--r-- | drivers/acpi/acpica/acevents.h | 9 | ||||
| -rw-r--r-- | drivers/acpi/acpica/acglobal.h | 30 | ||||
| -rw-r--r-- | drivers/acpi/acpica/aclocal.h | 9 | ||||
| -rw-r--r-- | drivers/acpi/acpica/dsfield.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/acpica/dsutils.c | 19 | ||||
| -rw-r--r-- | drivers/acpi/acpica/dswload.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/acpica/evgpeblk.c | 8 | ||||
| -rw-r--r-- | drivers/acpi/acpica/evgpeutil.c | 24 | ||||
| -rw-r--r-- | drivers/acpi/acpica/exresnte.c | 3 | ||||
| -rw-r--r-- | drivers/acpi/acpica/nsxfeval.c | 23 | ||||
| -rw-r--r-- | drivers/acpi/acpica/psopinfo.c | 51 | ||||
| -rw-r--r-- | drivers/acpi/acpica/tbfadt.c | 335 | ||||
| -rw-r--r-- | drivers/acpi/acpica/tbutils.c | 214 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utaddress.c | 19 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utalloc.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utcache.c | 12 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utdebug.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utglobal.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utxfinit.c | 12 |
20 files changed, 478 insertions, 315 deletions
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index a9fd0b872062..2bf3ca2b8a7a 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -113,7 +113,6 @@ void acpi_db_display_handlers(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_gpe(char *gpe_arg, char *block_arg)) - ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void)) /* diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 41abe552c7a3..0fb0adf435d6 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -71,9 +71,8 @@ acpi_status acpi_ev_init_global_lock_handler(void); ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_acquire_global_lock(u16 timeout)) - ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void)) - acpi_status acpi_ev_remove_global_lock_handler(void); +acpi_status acpi_ev_remove_global_lock_handler(void); /* * evgpe - Low-level GPE support @@ -133,7 +132,7 @@ acpi_status acpi_ev_gpe_initialize(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_update_gpes(acpi_owner_id table_owner_id)) - acpi_status +acpi_status acpi_ev_match_gpe_method(acpi_handle obj_handle, u32 level, void *context, void **return_value); @@ -149,7 +148,9 @@ acpi_status acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, struct acpi_gpe_block_info *gpe_block, void *context); -struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number); +acpi_status +acpi_ev_get_gpe_xrupt_block(u32 interrupt_number, + struct acpi_gpe_xrupt_info **gpe_xrupt_block); acpi_status acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt); diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index e9f1fc7f99c7..24db8e153bf0 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -119,6 +119,24 @@ bool ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE); /* + * Optionally ignore an XSDT if present and use the RSDT instead. + * Although the ACPI specification requires that an XSDT be used instead + * of the RSDT, the XSDT has been found to be corrupt or ill-formed on + * some machines. Default behavior is to use the XSDT if present. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_do_not_use_xsdt, FALSE); + +/* + * Optionally use 32-bit FADT addresses if and when there is a conflict + * (address mismatch) between the 32-bit and 64-bit versions of the + * address. Although ACPICA adheres to the ACPI specification which + * requires the use of the corresponding 64-bit address if it is non-zero, + * some machines have been found to have a corrupted non-zero 64-bit + * address. Default is FALSE, do not favor the 32-bit addresses. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_use32_bit_fadt_addresses, FALSE); + +/* * Optionally truncate I/O addresses to 16 bits. Provides compatibility * with other ACPI implementations. NOTE: During ACPICA initialization, * this value is set to TRUE if any Windows OSI strings have been @@ -484,6 +502,18 @@ ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects; /***************************************************************************** * + * Application globals + * + ****************************************************************************/ + +#ifdef ACPI_APPLICATION + +ACPI_FILE ACPI_INIT_GLOBAL(acpi_gbl_debug_file, NULL); + +#endif /* ACPI_APPLICATION */ + +/***************************************************************************** + * * Info/help support * ****************************************************************************/ diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 53ed1a8ba4f0..d95ca5449ace 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -1038,15 +1038,16 @@ struct acpi_external_list { struct acpi_external_list *next; u32 value; u16 length; + u16 flags; u8 type; - u8 flags; - u8 resolved; - u8 emitted; }; /* Values for Flags field above */ -#define ACPI_IPATH_ALLOCATED 0x01 +#define ACPI_EXT_RESOLVED_REFERENCE 0x01 /* Object was resolved during cross ref */ +#define ACPI_EXT_ORIGIN_FROM_FILE 0x02 /* External came from a file */ +#define ACPI_EXT_INTERNAL_PATH_ALLOCATED 0x04 /* Deallocate internal path on completion */ +#define ACPI_EXT_EXTERNAL_EMITTED 0x08 /* External() statement has been emitted */ struct acpi_external_file { char *path; diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index 2d4c07322576..e7a57c554e84 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -105,7 +105,7 @@ acpi_ds_create_external_region(acpi_status lookup_status, * operation_region not found. Generate an External for it, and * insert the name into the namespace. */ - acpi_dm_add_to_external_list(op, path, ACPI_TYPE_REGION, 0); + acpi_dm_add_op_to_external_list(op, path, ACPI_TYPE_REGION, 0, 0); status = acpi_ns_lookup(walk_state->scope_info, path, ACPI_TYPE_REGION, ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, walk_state, node); diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index ade44e49deb4..d7f53fb2979a 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -727,27 +727,26 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, index++; } - index--; + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "NumOperands %d, ArgCount %d, Index %d\n", + walk_state->num_operands, arg_count, index)); - /* It is the appropriate order to get objects from the Result stack */ + /* Create the interpreter arguments, in reverse order */ + index--; for (i = 0; i < arg_count; i++) { arg = arguments[index]; - - /* Force the filling of the operand stack in inverse order */ - - walk_state->operand_index = (u8) index; + walk_state->operand_index = (u8)index; status = acpi_ds_create_operand(walk_state, arg, index); if (ACPI_FAILURE(status)) { goto cleanup; } - index--; - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Arg #%u (%p) done, Arg1=%p\n", index, arg, - first_arg)); + "Created Arg #%u (%p) %u args total\n", + index, arg, arg_count)); + index--; } return_ACPI_STATUS(status); diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 95e681a36f9c..2dbe109727c8 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -181,8 +181,8 @@ 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(op, path, ACPI_TYPE_DEVICE, - 0); + acpi_dm_add_op_to_external_list(op, path, + ACPI_TYPE_DEVICE, 0, 0); status = acpi_ns_lookup(walk_state->scope_info, path, object_type, ACPI_IMODE_LOAD_PASS1, diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index a9e76bc4ad97..a31e549e64cc 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -87,9 +87,9 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, return_ACPI_STATUS(status); } - gpe_xrupt_block = acpi_ev_get_gpe_xrupt_block(interrupt_number); - if (!gpe_xrupt_block) { - status = AE_NO_MEMORY; + status = + acpi_ev_get_gpe_xrupt_block(interrupt_number, &gpe_xrupt_block); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -112,7 +112,7 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, acpi_os_release_lock(acpi_gbl_gpe_lock, flags); unlock_and_exit: - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index d3f5e1e2a2b1..4d764e847a08 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -197,8 +197,9 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * FUNCTION: acpi_ev_get_gpe_xrupt_block * * PARAMETERS: interrupt_number - Interrupt for a GPE block + * gpe_xrupt_block - Where the block is returned * - * RETURN: A GPE interrupt block + * RETURN: Status * * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt * block per unique interrupt level used for GPEs. Should be @@ -207,7 +208,9 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * ******************************************************************************/ -struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) +acpi_status +acpi_ev_get_gpe_xrupt_block(u32 interrupt_number, + struct acpi_gpe_xrupt_info ** gpe_xrupt_block) { struct acpi_gpe_xrupt_info *next_gpe_xrupt; struct acpi_gpe_xrupt_info *gpe_xrupt; @@ -221,7 +224,8 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; while (next_gpe_xrupt) { if (next_gpe_xrupt->interrupt_number == interrupt_number) { - return_PTR(next_gpe_xrupt); + *gpe_xrupt_block = next_gpe_xrupt; + return_ACPI_STATUS(AE_OK); } next_gpe_xrupt = next_gpe_xrupt->next; @@ -231,7 +235,7 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info)); if (!gpe_xrupt) { - return_PTR(NULL); + return_ACPI_STATUS(AE_NO_MEMORY); } gpe_xrupt->interrupt_number = interrupt_number; @@ -250,6 +254,7 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) } else { acpi_gbl_gpe_xrupt_list_head = gpe_xrupt; } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); /* Install new interrupt handler if not SCI_INT */ @@ -259,14 +264,15 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) acpi_ev_gpe_xrupt_handler, gpe_xrupt); if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not install GPE interrupt handler at level 0x%X", - interrupt_number)); - return_PTR(NULL); + ACPI_EXCEPTION((AE_INFO, status, + "Could not install GPE interrupt handler at level 0x%X", + interrupt_number)); + return_ACPI_STATUS(status); } } - return_PTR(gpe_xrupt); + *gpe_xrupt_block = gpe_xrupt; + return_ACPI_STATUS(AE_OK); } /******************************************************************************* diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c index acd34f599313..7ca6925a87ca 100644 --- a/drivers/acpi/acpica/exresnte.c +++ b/drivers/acpi/acpica/exresnte.c @@ -124,7 +124,8 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, } if (!source_desc) { - ACPI_ERROR((AE_INFO, "No object attached to node %p", node)); + ACPI_ERROR((AE_INFO, "No object attached to node [%4.4s] %p", + node->name.ascii, node)); return_ACPI_STATUS(AE_AML_NO_OPERAND); } diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index e973e311f856..1f0c28ba50df 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -84,7 +84,7 @@ acpi_evaluate_object_typed(acpi_handle handle, acpi_object_type return_type) { acpi_status status; - u8 must_free = FALSE; + u8 free_buffer_on_error = FALSE; ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed); @@ -95,14 +95,13 @@ acpi_evaluate_object_typed(acpi_handle handle, } if (return_buffer->length == ACPI_ALLOCATE_BUFFER) { - must_free = TRUE; + free_buffer_on_error = TRUE; } /* Evaluate the object */ - status = - acpi_evaluate_object(handle, pathname, external_params, - return_buffer); + status = acpi_evaluate_object(handle, pathname, + external_params, return_buffer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -135,11 +134,15 @@ acpi_evaluate_object_typed(acpi_handle handle, pointer)->type), acpi_ut_get_type_name(return_type))); - if (must_free) { - - /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */ - - ACPI_FREE_BUFFER(*return_buffer); + if (free_buffer_on_error) { + /* + * Free a buffer created via ACPI_ALLOCATE_BUFFER. + * Note: We use acpi_os_free here because acpi_os_allocate was used + * to allocate the buffer. This purposefully bypasses the + * (optionally enabled) allocation tracking mechanism since we + * only want to track internal allocations. + */ + acpi_os_free(return_buffer->pointer); return_buffer->pointer = NULL; } diff --git a/drivers/acpi/acpica/psopinfo.c b/drivers/acpi/acpica/psopinfo.c index 9ba5301e5751..b0c9787dbe61 100644 --- a/drivers/acpi/acpica/psopinfo.c +++ b/drivers/acpi/acpica/psopinfo.c @@ -71,6 +71,10 @@ static const u8 acpi_gbl_argument_count[] = const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) { +#ifdef ACPI_DEBUG_OUTPUT + const char *opcode_name = "Unknown AML opcode"; +#endif + ACPI_FUNCTION_NAME(ps_get_opcode_info); /* @@ -92,11 +96,54 @@ const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) return (&acpi_gbl_aml_op_info [acpi_gbl_long_op_index[(u8)opcode]]); } +#if defined ACPI_ASL_COMPILER && defined ACPI_DEBUG_OUTPUT +#include "asldefine.h" + + switch (opcode) { + case AML_RAW_DATA_BYTE: + opcode_name = "-Raw Data Byte-"; + break; + + case AML_RAW_DATA_WORD: + opcode_name = "-Raw Data Word-"; + break; + + case AML_RAW_DATA_DWORD: + opcode_name = "-Raw Data Dword-"; + break; + + case AML_RAW_DATA_QWORD: + opcode_name = "-Raw Data Qword-"; + break; + + case AML_RAW_DATA_BUFFER: + opcode_name = "-Raw Data Buffer-"; + break; + + case AML_RAW_DATA_CHAIN: + opcode_name = "-Raw Data Buffer Chain-"; + break; + + case AML_PACKAGE_LENGTH: + opcode_name = "-Package Length-"; + break; + + case AML_UNASSIGNED_OPCODE: + opcode_name = "-Unassigned Opcode-"; + break; + + case AML_DEFAULT_ARG_OP: + opcode_name = "-Default Arg-"; + break; + + default: + break; + } +#endif /* Unknown AML opcode */ - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Unknown AML opcode [%4.4X]\n", opcode)); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%4.4X]\n", opcode_name, opcode)); return (&acpi_gbl_aml_op_info[_UNK]); } diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 9d99f2189693..8f89263ac47e 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -56,10 +56,11 @@ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, static void acpi_tb_convert_fadt(void); -static void acpi_tb_validate_fadt(void); - static void acpi_tb_setup_fadt_registers(void); +static u64 +acpi_tb_select_address(char *register_name, u32 address32, u64 address64); + /* Table for conversion of FADT to common internal format and FADT validation */ typedef struct acpi_fadt_info { @@ -175,6 +176,7 @@ static struct acpi_fadt_pm_info fadt_pm_info_table[] = { * space_id - ACPI Space ID for this register * byte_width - Width of this register * address - Address of the register + * register_name - ASCII name of the ACPI register * * RETURN: None * @@ -220,6 +222,68 @@ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, /******************************************************************************* * + * FUNCTION: acpi_tb_select_address + * + * PARAMETERS: register_name - ASCII name of the ACPI register + * address32 - 32-bit address of the register + * address64 - 64-bit address of the register + * + * RETURN: The resolved 64-bit address + * + * DESCRIPTION: Select between 32-bit and 64-bit versions of addresses within + * the FADT. Used for the FACS and DSDT addresses. + * + * NOTES: + * + * Check for FACS and DSDT address mismatches. An address mismatch between + * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and + * DSDT/X_DSDT) could be a corrupted address field or it might indicate + * the presence of two FACS or two DSDT tables. + * + * November 2013: + * By default, as per the ACPICA specification, a valid 64-bit address is + * used regardless of the value of the 32-bit address. However, this + * behavior can be overridden via the acpi_gbl_use32_bit_fadt_addresses flag. + * + ******************************************************************************/ + +static u64 +acpi_tb_select_address(char *register_name, u32 address32, u64 address64) +{ + + if (!address64) { + + /* 64-bit address is zero, use 32-bit address */ + + return ((u64)address32); + } + + if (address32 && (address64 != (u64)address32)) { + + /* Address mismatch between 32-bit and 64-bit versions */ + + ACPI_BIOS_WARNING((AE_INFO, + "32/64X %s address mismatch in FADT: " + "0x%8.8X/0x%8.8X%8.8X, using %u-bit address", + register_name, address32, + ACPI_FORMAT_UINT64(address64), + acpi_gbl_use32_bit_fadt_addresses ? 32 : + 64)); + + /* 32-bit address override */ + + if (acpi_gbl_use32_bit_fadt_addresses) { + return ((u64)address32); + } + } + + /* Default is to use the 64-bit address */ + + return (address64); +} + +/******************************************************************************* + * * FUNCTION: acpi_tb_parse_fadt * * PARAMETERS: table_index - Index for the FADT @@ -331,10 +395,6 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) acpi_tb_convert_fadt(); - /* Validate FADT values now, before we make any changes */ - - acpi_tb_validate_fadt(); - /* Initialize the global ACPI register structures */ acpi_tb_setup_fadt_registers(); @@ -344,66 +404,55 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) * * FUNCTION: acpi_tb_convert_fadt * - * PARAMETERS: None, uses acpi_gbl_FADT + * PARAMETERS: none - acpi_gbl_FADT is used. * * RETURN: None * * DESCRIPTION: Converts all versions of the FADT to a common internal format. - * Expand 32-bit addresses to 64-bit as necessary. + * Expand 32-bit addresses to 64-bit as necessary. Also validate + * important fields within the FADT. * - * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), - * and must contain a copy of the actual FADT. + * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), and must + * contain a copy of the actual BIOS-provided FADT. * * Notes on 64-bit register addresses: * * After this FADT conversion, later ACPICA code will only use the 64-bit "X" * fields of the FADT for all ACPI register addresses. * - * The 64-bit "X" fields are optional extensions to the original 32-bit FADT + * The 64-bit X fields are optional extensions to the original 32-bit FADT * V1.0 fields. Even if they are present in the FADT, they are optional and * are unused if the BIOS sets them to zero. Therefore, we must copy/expand - * 32-bit V1.0 fields if the corresponding X field is zero. + * 32-bit V1.0 fields to the 64-bit X fields if the the 64-bit X field is + * originally zero. * - * For ACPI 1.0 FADTs, all 32-bit address fields are expanded to the - * corresponding "X" fields in the internal FADT. + * For ACPI 1.0 FADTs (that contain no 64-bit addresses), all 32-bit address + * fields are expanded to the corresponding 64-bit X fields in the internal + * common FADT. * * For ACPI 2.0+ FADTs, all valid (non-zero) 32-bit address fields are expanded - * to the corresponding 64-bit X fields. For compatibility with other ACPI - * implementations, we ignore the 64-bit field if the 32-bit field is valid, - * regardless of whether the host OS is 32-bit or 64-bit. + * to the corresponding 64-bit X fields, if the 64-bit field is originally + * zero. Adhering to the ACPI specification, we completely ignore the 32-bit + * field if the 64-bit field is valid, regardless of whether the host OS is + * 32-bit or 64-bit. + * + * Possible additional checks: + * (acpi_gbl_FADT.pm1_event_length >= 4) + * (acpi_gbl_FADT.pm1_control_length >= 2) + * (acpi_gbl_FADT.pm_timer_length >= 4) + * Gpe block lengths must be multiple of 2 * ******************************************************************************/ static void acpi_tb_convert_fadt(void) { + char *name; struct acpi_generic_address *address64; u32 address32; + u8 length; u32 i; /* - * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary. - * Later code will always use the X 64-bit field. Also, check for an - * address mismatch between the 32-bit and 64-bit address fields - * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate - * the presence of two FACS or two DSDT tables. - */ - if (!acpi_gbl_FADT.Xfacs) { - acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs; - } else if (acpi_gbl_FADT.facs && - (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) { - ACPI_WARNING((AE_INFO, - "32/64 FACS address mismatch in FADT - two FACS tables!")); - } - - if (!acpi_gbl_FADT.Xdsdt) { - acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt; - } else if (acpi_gbl_FADT.dsdt && - (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) { - ACPI_WARNING((AE_INFO, - "32/64 DSDT address mismatch in FADT - two DSDT tables!")); - } - - /* * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which * should be zero are indeed zero. This will workaround BIOSs that * inadvertently place values in these fields. @@ -421,119 +470,24 @@ static void acpi_tb_convert_fadt(void) acpi_gbl_FADT.boot_flags = 0; } - /* Update the local FADT table header length */ - - acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); - /* - * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X" - * generic address structures as necessary. Later code will always use - * the 64-bit address structures. - * - * March 2009: - * We now always use the 32-bit address if it is valid (non-null). This - * is not in accordance with the ACPI specification which states that - * the 64-bit address supersedes the 32-bit version, but we do this for - * compatibility with other ACPI implementations. Most notably, in the - * case where both the 32 and 64 versions are non-null, we use the 32-bit - * version. This is the only address that is guaranteed to have been - * tested by the BIOS manufacturer. + * Now we can update the local FADT length to the length of the + * current FADT version as defined by the ACPI specification. + * Thus, we will have a common FADT internally. */ - for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { - address32 = *ACPI_ADD_PTR(u32, - &acpi_gbl_FADT, - fadt_info_table[i].address32); - - address64 = ACPI_ADD_PTR(struct acpi_generic_address, - &acpi_gbl_FADT, - fadt_info_table[i].address64); - - /* - * If both 32- and 64-bit addresses are valid (non-zero), - * they must match. - */ - if (address64->address && address32 && - (address64->address != (u64)address32)) { - ACPI_BIOS_ERROR((AE_INFO, - "32/64X address mismatch in FADT/%s: " - "0x%8.8X/0x%8.8X%8.8X, using 32", - fadt_info_table[i].name, address32, - ACPI_FORMAT_UINT64(address64-> - address))); - } - - /* Always use 32-bit address if it is valid (non-null) */ - - if (address32) { - /* - * Copy the 32-bit address to the 64-bit GAS structure. The - * Space ID is always I/O for 32-bit legacy address fields - */ - acpi_tb_init_generic_address(address64, - ACPI_ADR_SPACE_SYSTEM_IO, - *ACPI_ADD_PTR(u8, - &acpi_gbl_FADT, - fadt_info_table - [i].length), - (u64) address32, - fadt_info_table[i].name); - } - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_fadt - * - * PARAMETERS: table - Pointer to the FADT to be validated - * - * RETURN: None - * - * DESCRIPTION: Validate various important fields within the FADT. If a problem - * is found, issue a message, but no status is returned. - * Used by both the table manager and the disassembler. - * - * Possible additional checks: - * (acpi_gbl_FADT.pm1_event_length >= 4) - * (acpi_gbl_FADT.pm1_control_length >= 2) - * (acpi_gbl_FADT.pm_timer_length >= 4) - * Gpe block lengths must be multiple of 2 - * - ******************************************************************************/ - -static void acpi_tb_validate_fadt(void) -{ - char *name; - struct acpi_generic_address *address64; - u8 length; - u32 i; + acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); /* - * Check for FACS and DSDT address mismatches. An address mismatch between - * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and - * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables. + * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary. + * Later ACPICA code will always use the X 64-bit field. */ - if (acpi_gbl_FADT.facs && - (acpi_gbl_FADT.Xfacs != (u64)acpi_gbl_FADT.facs)) { - ACPI_BIOS_WARNING((AE_INFO, - "32/64X FACS address mismatch in FADT - " - "0x%8.8X/0x%8.8X%8.8X, using 32", - acpi_gbl_FADT.facs, - ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs))); - - acpi_gbl_FADT.Xfacs = (u64)acpi_gbl_FADT.facs; - } - - if (acpi_gbl_FADT.dsdt && - (acpi_gbl_FADT.Xdsdt != (u64)acpi_gbl_FADT.dsdt)) { - ACPI_BIOS_WARNING((AE_INFO, - "32/64X DSDT address mismatch in FADT - " - "0x%8.8X/0x%8.8X%8.8X, using 32", - acpi_gbl_FADT.dsdt, - ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt))); + acpi_gbl_FADT.Xfacs = acpi_tb_select_address("FACS", + acpi_gbl_FADT.facs, + acpi_gbl_FADT.Xfacs); - acpi_gbl_FADT.Xdsdt = (u64)acpi_gbl_FADT.dsdt; - } + acpi_gbl_FADT.Xdsdt = acpi_tb_select_address("DSDT", + acpi_gbl_FADT.dsdt, + acpi_gbl_FADT.Xdsdt); /* If Hardware Reduced flag is set, we are all done */ @@ -545,18 +499,95 @@ static void acpi_tb_validate_fadt(void) for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { /* - * Generate pointer to the 64-bit address, get the register - * length (width) and the register name + * Get the 32-bit and 64-bit addresses, as well as the register + * length and register name. */ + address32 = *ACPI_ADD_PTR(u32, + &acpi_gbl_FADT, + fadt_info_table[i].address32); + address64 = ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT, fadt_info_table[i].address64); - length = - *ACPI_ADD_PTR(u8, &acpi_gbl_FADT, - fadt_info_table[i].length); + + length = *ACPI_ADD_PTR(u8, + &acpi_gbl_FADT, + fadt_info_table[i].length); + name = fadt_info_table[i].name; /* + * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X" + * generic address structures as necessary. Later code will always use + * the 64-bit address structures. + * + * November 2013: + * Now always use the 64-bit address if it is valid (non-zero), in + * accordance with the ACPI specification which states that a 64-bit + * address supersedes the 32-bit version. This behavior can be + * overridden by the acpi_gbl_use32_bit_fadt_addresses flag. + * + * During 64-bit address construction and verification, + * these cases are handled: + * + * Address32 zero, Address64 [don't care] - Use Address64 + * + * Address32 non-zero, Address64 zero - Copy/use Address32 + * Address32 non-zero == Address64 non-zero - Use Address64 + * Address32 non-zero != Address64 non-zero - Warning, use Address64 + * + * Override: if acpi_gbl_use32_bit_fadt_addresses is TRUE, and: + * Address32 non-zero != Address64 non-zero - Warning, copy/use Address32 + * + * Note: space_id is always I/O for 32-bit legacy address fields + */ + if (address32) { + if (!address64->address) { + + /* 64-bit address is zero, use 32-bit address */ + + acpi_tb_init_generic_address(address64, + ACPI_ADR_SPACE_SYSTEM_IO, + *ACPI_ADD_PTR(u8, + &acpi_gbl_FADT, + fadt_info_table + [i]. + length), + (u64)address32, + name); + } else if (address64->address != (u64)address32) { + + /* Address mismatch */ + + ACPI_BIOS_WARNING((AE_INFO, + "32/64X address mismatch in FADT/%s: " + "0x%8.8X/0x%8.8X%8.8X, using %u-bit address", + name, address32, + ACPI_FORMAT_UINT64 + (address64->address), + acpi_gbl_use32_bit_fadt_addresses + ? 32 : 64)); + + if (acpi_gbl_use32_bit_fadt_addresses) { + + /* 32-bit address override */ + + acpi_tb_init_generic_address(address64, + ACPI_ADR_SPACE_SYSTEM_IO, + *ACPI_ADD_PTR + (u8, + &acpi_gbl_FADT, + fadt_info_table + [i]. + length), + (u64) + address32, + name); + } + } + } + + /* * For each extended field, check for length mismatch between the * legacy length field and the corresponding 64-bit X length field. * Note: If the legacy length field is > 0xFF bits, ignore this diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 3d6bb83aa7e7..6412d3c301cb 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -49,69 +49,11 @@ ACPI_MODULE_NAME("tbutils") /* Local prototypes */ +static acpi_status acpi_tb_validate_xsdt(acpi_physical_address address); + static acpi_physical_address acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size); -/******************************************************************************* - * - * FUNCTION: acpi_tb_check_xsdt - * - * PARAMETERS: address - Pointer to the XSDT - * - * RETURN: status - * AE_OK - XSDT is okay - * AE_NO_MEMORY - can't map XSDT - * AE_INVALID_TABLE_LENGTH - invalid table length - * AE_NULL_ENTRY - XSDT has NULL entry - * - * DESCRIPTION: validate XSDT -******************************************************************************/ - -static acpi_status -acpi_tb_check_xsdt(acpi_physical_address address) -{ - struct acpi_table_header *table; - u32 length; - u64 xsdt_entry_address; - u8 *table_entry; - u32 table_count; - int i; - - table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); - if (!table) - return AE_NO_MEMORY; - - length = table->length; - acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - if (length < sizeof(struct acpi_table_header)) - return AE_INVALID_TABLE_LENGTH; - - table = acpi_os_map_memory(address, length); - if (!table) - return AE_NO_MEMORY; - - /* Calculate the number of tables described in XSDT */ - table_count = - (u32) ((table->length - - sizeof(struct acpi_table_header)) / sizeof(u64)); - table_entry = - ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); - for (i = 0; i < table_count; i++) { - ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry); - if (!xsdt_entry_address) { - /* XSDT has NULL entry */ - break; - } - table_entry += sizeof(u64); - } - acpi_os_unmap_memory(table, length); - - if (i < table_count) - return AE_NULL_ENTRY; - else - return AE_OK; -} - #if (!ACPI_REDUCED_HARDWARE) /******************************************************************************* * @@ -383,7 +325,7 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size) * Get the table physical address (32-bit for RSDT, 64-bit for XSDT): * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT */ - if (table_entry_size == sizeof(u32)) { + if (table_entry_size == ACPI_RSDT_ENTRY_SIZE) { /* * 32-bit platform, RSDT: Return 32-bit table entry * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return @@ -415,6 +357,87 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size) /******************************************************************************* * + * FUNCTION: acpi_tb_validate_xsdt + * + * PARAMETERS: address - Physical address of the XSDT (from RSDP) + * + * RETURN: Status. AE_OK if the table appears to be valid. + * + * DESCRIPTION: Validate an XSDT to ensure that it is of minimum size and does + * not contain any NULL entries. A problem that is seen in the + * field is that the XSDT exists, but is actually useless because + * of one or more (or all) NULL entries. + * + ******************************************************************************/ + +static acpi_status acpi_tb_validate_xsdt(acpi_physical_address xsdt_address) +{ + struct acpi_table_header *table; + u8 *next_entry; + acpi_physical_address address; + u32 length; + u32 entry_count; + acpi_status status; + u32 i; + + /* Get the XSDT length */ + + table = + acpi_os_map_memory(xsdt_address, sizeof(struct acpi_table_header)); + if (!table) { + return (AE_NO_MEMORY); + } + + length = table->length; + acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); + + /* + * Minimum XSDT length is the size of the standard ACPI header + * plus one physical address entry + */ + if (length < (sizeof(struct acpi_table_header) + ACPI_XSDT_ENTRY_SIZE)) { + return (AE_INVALID_TABLE_LENGTH); + } + + /* Map the entire XSDT */ + + table = acpi_os_map_memory(xsdt_address, length); + if (!table) { + return (AE_NO_MEMORY); + } + + /* Get the number of entries and pointer to first entry */ + + status = AE_OK; + next_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header)); + entry_count = (u32)((table->length - sizeof(struct acpi_table_header)) / + ACPI_XSDT_ENTRY_SIZE); + + /* Validate each entry (physical address) within the XSDT */ + + for (i = 0; i < entry_count; i++) { + address = + acpi_tb_get_root_table_entry(next_entry, + ACPI_XSDT_ENTRY_SIZE); + if (!address) { + + /* Detected a NULL entry, XSDT is invalid */ + + status = AE_NULL_ENTRY; + break; + } + + next_entry += ACPI_XSDT_ENTRY_SIZE; + } + + /* Unmap table */ + + acpi_os_unmap_memory(table, length); + return (status); +} + +/******************************************************************************* + * * FUNCTION: acpi_tb_parse_root_table * * PARAMETERS: rsdp - Pointer to the RSDP @@ -438,16 +461,14 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) u32 table_count; struct acpi_table_header *table; acpi_physical_address address; - acpi_physical_address uninitialized_var(rsdt_address); u32 length; u8 *table_entry; acpi_status status; ACPI_FUNCTION_TRACE(tb_parse_root_table); - /* - * Map the entire RSDP and extract the address of the RSDT or XSDT - */ + /* Map the entire RSDP and extract the address of the RSDT or XSDT */ + rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp)); if (!rsdp) { return_ACPI_STATUS(AE_NO_MEMORY); @@ -457,24 +478,22 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) ACPI_CAST_PTR(struct acpi_table_header, rsdp)); - /* Differentiate between RSDT and XSDT root tables */ + /* Use XSDT if present and not overridden. Otherwise, use RSDT */ - if (rsdp->revision > 1 && rsdp->xsdt_physical_address - && !acpi_rsdt_forced) { + if ((rsdp->revision > 1) && + rsdp->xsdt_physical_address && !acpi_gbl_do_not_use_xsdt) { /* - * Root table is an XSDT (64-bit physical addresses). We must use the - * XSDT if the revision is > 1 and the XSDT pointer is present, as per - * the ACPI specification. + * RSDP contains an XSDT (64-bit physical addresses). We must use + * the XSDT if the revision is > 1 and the XSDT pointer is present, + * as per the ACPI specification. */ address = (acpi_physical_address) rsdp->xsdt_physical_address; - table_entry_size = sizeof(u64); - rsdt_address = (acpi_physical_address) - rsdp->rsdt_physical_address; + table_entry_size = ACPI_XSDT_ENTRY_SIZE; } else { /* Root table is an RSDT (32-bit physical addresses) */ address = (acpi_physical_address) rsdp->rsdt_physical_address; - table_entry_size = sizeof(u32); + table_entry_size = ACPI_RSDT_ENTRY_SIZE; } /* @@ -483,15 +502,25 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) */ acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp)); - if (table_entry_size == sizeof(u64)) { - if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) { - /* XSDT has NULL entry, RSDT is used */ - address = rsdt_address; - table_entry_size = sizeof(u32); - ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, " - "using RSDT")); + /* + * If it is present and used, validate the XSDT for access/size + * and ensure that all table entries are at least non-NULL + */ + if (table_entry_size == ACPI_XSDT_ENTRY_SIZE) { + status = acpi_tb_validate_xsdt(address); + if (ACPI_FAILURE(status)) { + ACPI_BIOS_WARNING((AE_INFO, + "XSDT is invalid (%s), using RSDT", + acpi_format_exception(status))); + + /* Fall back to the RSDT */ + + address = + (acpi_physical_address) rsdp->rsdt_physical_address; + table_entry_size = ACPI_RSDT_ENTRY_SIZE; } } + /* Map the RSDT/XSDT table header to get the full table length */ table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); @@ -501,12 +530,14 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) acpi_tb_print_table_header(address, table); - /* Get the length of the full table, verify length and map entire table */ - + /* + * Validate length of the table, and map entire table. + * Minimum length table must contain at least one entry. + */ length = table->length; acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - if (length < sizeof(struct acpi_table_header)) { + if (length < (sizeof(struct acpi_table_header) + table_entry_size)) { ACPI_BIOS_ERROR((AE_INFO, "Invalid table length 0x%X in RSDT/XSDT", length)); @@ -526,22 +557,21 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) return_ACPI_STATUS(status); } - /* Calculate the number of tables described in the root table */ + /* Get the number of entries and pointer to first entry */ table_count = (u32)((table->length - sizeof(struct acpi_table_header)) / table_entry_size); + table_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header)); + /* * First two entries in the table array are reserved for the DSDT * and FACS, which are not actually present in the RSDT/XSDT - they * come from the FADT */ - table_entry = - ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); acpi_gbl_root_table_list.current_table_count = 2; - /* - * Initialize the root table array from the RSDT/XSDT - */ + /* Initialize the root table array from the RSDT/XSDT */ + for (i = 0; i < table_count; i++) { if (acpi_gbl_root_table_list.current_table_count >= acpi_gbl_root_table_list.max_table_count) { @@ -584,7 +614,7 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) acpi_tb_install_table(acpi_gbl_root_table_list.tables[i]. address, NULL, i); - /* Special case for FADT - get the DSDT and FACS */ + /* Special case for FADT - validate it then get the DSDT and FACS */ if (ACPI_COMPARE_NAME (&acpi_gbl_root_table_list.tables[i].signature, diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c index e0a2e2779c2e..2c2b6ae5dfc4 100644 --- a/drivers/acpi/acpica/utaddress.c +++ b/drivers/acpi/acpica/utaddress.c @@ -224,10 +224,11 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id, while (range_info) { /* - * Check if the requested Address/Length overlaps this address_range. - * Four cases to consider: + * Check if the requested address/length overlaps this + * address range. There are four cases to consider: * - * 1) Input address/length is contained completely in the address range + * 1) Input address/length is contained completely in the + * address range * 2) Input address/length overlaps range at the range start * 3) Input address/length overlaps range at the range end * 4) Input address/length completely encompasses the range @@ -244,11 +245,17 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id, region_node); ACPI_WARNING((AE_INFO, - "0x%p-0x%p %s conflicts with Region %s %d", + "%s range 0x%p-0x%p conflicts with OpRegion 0x%p-0x%p (%s)", + acpi_ut_get_region_name(space_id), ACPI_CAST_PTR(void, address), ACPI_CAST_PTR(void, end_address), - acpi_ut_get_region_name(space_id), - pathname, overlap_count)); + ACPI_CAST_PTR(void, + range_info-> + start_address), + ACPI_CAST_PTR(void, + range_info-> + end_address), + pathname)); ACPI_FREE(pathname); } } diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c index 814267f52715..1851762fc5b5 100644 --- a/drivers/acpi/acpica/utalloc.c +++ b/drivers/acpi/acpica/utalloc.c @@ -302,9 +302,13 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer, return (AE_BUFFER_OVERFLOW); case ACPI_ALLOCATE_BUFFER: - - /* Allocate a new buffer */ - + /* + * Allocate a new buffer. We directectly call acpi_os_allocate here to + * purposefully bypass the (optionally enabled) internal allocation + * tracking mechanism since we only want to track internal + * allocations. Note: The caller should use acpi_os_free to free this + * buffer created via ACPI_ALLOCATE_BUFFER. + */ buffer->pointer = acpi_os_allocate(required_length); break; diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c index 366bfec4b770..cacd2fd9e665 100644 --- a/drivers/acpi/acpica/utcache.c +++ b/drivers/acpi/acpica/utcache.c @@ -248,12 +248,12 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) ACPI_FUNCTION_NAME(os_acquire_object); if (!cache) { - return (NULL); + return_PTR(NULL); } status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } ACPI_MEM_TRACKING(cache->requests++); @@ -276,7 +276,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) status = acpi_ut_release_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } /* Clear (zero) the previously used Object */ @@ -299,15 +299,15 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) status = acpi_ut_release_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } object = ACPI_ALLOCATE_ZEROED(cache->object_size); if (!object) { - return (NULL); + return_PTR(NULL); } } - return (object); + return_PTR(object); } #endif /* ACPI_USE_LOCAL_CACHE */ diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index 03ae8affe48f..d971c8631263 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -194,9 +194,9 @@ acpi_debug_print(u32 requested_debug_level, */ acpi_os_printf("%9s-%04ld ", module_name, line_number); -#ifdef ACPI_EXEC_APP +#ifdef ACPI_APPLICATION /* - * For acpi_exec only, emit the thread ID and nesting level. + * For acpi_exec/iASL only, emit the thread ID and nesting level. * Note: nesting level is really only useful during a single-thread * execution. Otherwise, multiple threads will keep resetting the * level. diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 81f9a9584451..030cb0dc673c 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -388,11 +388,7 @@ acpi_status acpi_ut_init_globals(void) /* Public globals */ ACPI_EXPORT_SYMBOL(acpi_gbl_FADT) - ACPI_EXPORT_SYMBOL(acpi_dbg_level) - ACPI_EXPORT_SYMBOL(acpi_dbg_layer) - ACPI_EXPORT_SYMBOL(acpi_gpe_count) - ACPI_EXPORT_SYMBOL(acpi_current_gpe_count) diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c index 75efea0539c1..246ef68681f4 100644 --- a/drivers/acpi/acpica/utxfinit.c +++ b/drivers/acpi/acpica/utxfinit.c @@ -122,8 +122,16 @@ acpi_status __init acpi_initialize_subsystem(void) /* If configured, initialize the AML debugger */ - ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); - return_ACPI_STATUS(status); +#ifdef ACPI_DEBUGGER + status = acpi_db_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During Debugger initialization")); + return_ACPI_STATUS(status); + } +#endif + + return_ACPI_STATUS(AE_OK); } ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_subsystem) |