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-rw-r--r--drivers/acpi/acpi_pnp.c2
-rw-r--r--drivers/acpi/acpica/acdebug.h4
-rw-r--r--drivers/acpi/acpica/aclocal.h15
-rw-r--r--drivers/acpi/acpica/acparser.h3
-rw-r--r--drivers/acpi/acpica/acpredef.h45
-rw-r--r--drivers/acpi/acpica/acutils.h2
-rw-r--r--drivers/acpi/acpica/dsmethod.c5
-rw-r--r--drivers/acpi/acpica/hwpci.c9
-rw-r--r--drivers/acpi/acpica/nsprepkg.c13
-rw-r--r--drivers/acpi/acpica/nsrepair.c2
-rw-r--r--drivers/acpi/acpica/psopinfo.c3
-rw-r--r--drivers/acpi/acpica/utfileio.c9
-rw-r--r--drivers/acpi/acpica/utglobal.c13
-rw-r--r--drivers/acpi/acpica/uthex.c4
-rw-r--r--drivers/acpi/acpica/utxferror.c11
-rw-r--r--drivers/acpi/bus.c56
-rw-r--r--drivers/acpi/internal.h2
-rw-r--r--drivers/acpi/osl.c12
-rw-r--r--drivers/acpi/property.c54
-rw-r--r--drivers/acpi/resource.c162
-rw-r--r--drivers/acpi/sbshc.c22
-rw-r--r--drivers/acpi/scan.c30
22 files changed, 379 insertions, 99 deletions
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index b193f8425999..ff6d8adc9cda 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -304,6 +304,8 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
{"PNPb006"},
/* cs423x-pnpbios */
{"CSC0100"},
+ {"CSC0103"},
+ {"CSC0110"},
{"CSC0000"},
{"GIM0100"}, /* Guillemot Turtlebeach something appears to be cs4232 compatible */
/* es18xx-pnpbios */
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 4169bb87a996..43685dd36c77 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -231,7 +231,9 @@ void acpi_db_open_debug_file(char *name);
acpi_status acpi_db_load_acpi_table(char *filename);
acpi_status
-acpi_db_get_table_from_file(char *filename, struct acpi_table_header **table);
+acpi_db_get_table_from_file(char *filename,
+ struct acpi_table_header **table,
+ u8 must_be_aml_table);
/*
* dbhistry - debugger HISTORY command
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 87b27521fcac..ffdb956391f6 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -352,11 +352,21 @@ struct acpi_package_info3 {
u16 reserved;
};
+struct acpi_package_info4 {
+ u8 type;
+ u8 object_type1;
+ u8 count1;
+ u8 sub_object_types;
+ u8 pkg_count;
+ u16 reserved;
+};
+
union acpi_predefined_info {
struct acpi_name_info info;
struct acpi_package_info ret_info;
struct acpi_package_info2 ret_info2;
struct acpi_package_info3 ret_info3;
+ struct acpi_package_info4 ret_info4;
};
/* Reset to default packing */
@@ -1165,4 +1175,9 @@ struct ah_uuid {
char *string;
};
+struct ah_table {
+ char *signature;
+ char *description;
+};
+
#endif /* __ACLOCAL_H__ */
diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h
index 74a390c6db16..0cdd2fce493a 100644
--- a/drivers/acpi/acpica/acparser.h
+++ b/drivers/acpi/acpica/acparser.h
@@ -70,6 +70,9 @@
*
*****************************************************************************/
+extern const u8 acpi_gbl_short_op_index[];
+extern const u8 acpi_gbl_long_op_index[];
+
/*
* psxface - Parser external interfaces
*/
diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h
index a972d11c97c9..b9474b529fcb 100644
--- a/drivers/acpi/acpica/acpredef.h
+++ b/drivers/acpi/acpica/acpredef.h
@@ -105,6 +105,11 @@
* count = 0 (optional)
* (Used for _DLM)
*
+ * ACPI_PTYPE2_VAR_VAR: Variable number of subpackages, each of either a
+ * constant or variable length. The subpackages are preceded by a
+ * constant number of objects.
+ * (Used for _LPI, _RDI)
+ *
* ACPI_PTYPE2_UUID_PAIR: Each subpackage is preceded by a UUID Buffer. The UUID
* defines the format of the package. Zero-length parent package is
* allowed.
@@ -123,7 +128,8 @@ enum acpi_return_package_types {
ACPI_PTYPE2_MIN = 8,
ACPI_PTYPE2_REV_FIXED = 9,
ACPI_PTYPE2_FIX_VAR = 10,
- ACPI_PTYPE2_UUID_PAIR = 11
+ ACPI_PTYPE2_VAR_VAR = 11,
+ ACPI_PTYPE2_UUID_PAIR = 12
};
/* Support macros for users of the predefined info table */
@@ -172,7 +178,7 @@ enum acpi_return_package_types {
* These are the names that can actually be evaluated via acpi_evaluate_object.
* Not present in this table are the following:
*
- * 1) Predefined/Reserved names that are never evaluated via
+ * 1) Predefined/Reserved names that are not usually evaluated via
* acpi_evaluate_object:
* _Lxx and _Exx GPE methods
* _Qxx EC methods
@@ -361,6 +367,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (4 Int) */
PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0),
+ {{"_BTH", METHOD_1ARGS(ACPI_TYPE_INTEGER), /* ACPI 6.0 */
+ METHOD_NO_RETURN_VALUE}},
+
{{"_BTM", METHOD_1ARGS(ACPI_TYPE_INTEGER),
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
@@ -390,6 +399,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER, 0,
0, 0, 0),
+ {{"_CR3", METHOD_0ARGS, /* ACPI 6.0 */
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
{{"_CRS", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
@@ -445,7 +457,7 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
{{"_DOS", METHOD_1ARGS(ACPI_TYPE_INTEGER),
METHOD_NO_RETURN_VALUE}},
- {{"_DSD", METHOD_0ARGS,
+ {{"_DSD", METHOD_0ARGS, /* ACPI 6.0 */
METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each: 1 Buf, 1 Pkg */
PACKAGE_INFO(ACPI_PTYPE2_UUID_PAIR, ACPI_RTYPE_BUFFER, 1,
ACPI_RTYPE_PACKAGE, 1, 0),
@@ -604,6 +616,12 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (1 Int(rev), n Pkg (2 Int) */
PACKAGE_INFO(ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0),
+ {{"_LPI", METHOD_0ARGS, /* ACPI 6.0 */
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (3 Int, n Pkg (10 Int/Buf) */
+ PACKAGE_INFO(ACPI_PTYPE2_VAR_VAR, ACPI_RTYPE_INTEGER, 3,
+ ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER | ACPI_RTYPE_STRING,
+ 10, 0),
+
{{"_MAT", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
@@ -624,6 +642,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
ACPI_TYPE_INTEGER),
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+ {{"_MTL", METHOD_0ARGS, /* ACPI 6.0 */
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
{{"_NTT", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
@@ -716,6 +737,10 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Refs) */
PACKAGE_INFO(ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0),
+ {{"_PRR", METHOD_0ARGS, /* ACPI 6.0 */
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Fixed-length (1 Ref) */
+ PACKAGE_INFO(ACPI_PTYPE1_FIXED, ACPI_RTYPE_REFERENCE, 1, 0, 0, 0),
+
{{"_PRS", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
@@ -796,6 +821,11 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
{{"_PXM", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+ {{"_RDI", METHOD_0ARGS, /* ACPI 6.0 */
+ METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (1 Int, n Pkg (m Ref)) */
+ PACKAGE_INFO(ACPI_PTYPE2_VAR_VAR, ACPI_RTYPE_INTEGER, 1,
+ ACPI_RTYPE_REFERENCE, 0, 0),
+
{{"_REG", METHOD_2ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
METHOD_NO_RETURN_VALUE}},
@@ -808,6 +838,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
{{"_ROM", METHOD_2ARGS(ACPI_TYPE_INTEGER, ACPI_TYPE_INTEGER),
METHOD_RETURNS(ACPI_RTYPE_BUFFER)}},
+ {{"_RST", METHOD_0ARGS, /* ACPI 6.0 */
+ METHOD_NO_RETURN_VALUE}},
+
{{"_RTV", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
@@ -935,6 +968,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
{{"_TDL", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+ {{"_TFP", METHOD_0ARGS, /* ACPI 6.0 */
+ METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
+
{{"_TIP", METHOD_1ARGS(ACPI_TYPE_INTEGER),
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
@@ -959,6 +995,9 @@ const union acpi_predefined_info acpi_gbl_predefined_methods[] = {
METHOD_RETURNS(ACPI_RTYPE_PACKAGE)}}, /* Variable-length (Pkgs) each 5 Int with count */
PACKAGE_INFO(ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 5, 0, 0, 0),
+ {{"_TSN", METHOD_0ARGS, /* ACPI 6.0 */
+ METHOD_RETURNS(ACPI_RTYPE_REFERENCE)}},
+
{{"_TSP", METHOD_0ARGS,
METHOD_RETURNS(ACPI_RTYPE_INTEGER)}},
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 2b3c5bd222f1..d49f5c7a20d9 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -251,7 +251,7 @@ extern const u8 _acpi_ctype[];
#define _ACPI_DI 0x04 /* '0'-'9' */
#define _ACPI_LO 0x02 /* 'a'-'z' */
#define _ACPI_PU 0x10 /* punctuation */
-#define _ACPI_SP 0x08 /* space */
+#define _ACPI_SP 0x08 /* space, tab, CR, LF, VT, FF */
#define _ACPI_UP 0x01 /* 'A'-'Z' */
#define _ACPI_XD 0x80 /* '0'-'9', 'A'-'F', 'a'-'f' */
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index d72565a3c646..85bb951430d9 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -116,6 +116,7 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node,
walk_state =
acpi_ds_create_walk_state(node->owner_id, NULL, NULL, NULL);
if (!walk_state) {
+ acpi_ps_free_op(op);
return_ACPI_STATUS(AE_NO_MEMORY);
}
@@ -125,6 +126,7 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node,
obj_desc->method.aml_length, NULL, 0);
if (ACPI_FAILURE(status)) {
acpi_ds_delete_walk_state(walk_state);
+ acpi_ps_free_op(op);
return_ACPI_STATUS(status);
}
@@ -133,9 +135,6 @@ acpi_ds_auto_serialize_method(struct acpi_namespace_node *node,
/* Parse the method, scan for creation of named objects */
status = acpi_ps_parse_aml(walk_state);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
acpi_ps_delete_parse_tree(op);
return_ACPI_STATUS(status);
diff --git a/drivers/acpi/acpica/hwpci.c b/drivers/acpi/acpica/hwpci.c
index c5214dec4988..f785ea788356 100644
--- a/drivers/acpi/acpica/hwpci.c
+++ b/drivers/acpi/acpica/hwpci.c
@@ -123,7 +123,7 @@ acpi_hw_derive_pci_id(struct acpi_pci_id *pci_id,
acpi_handle root_pci_device, acpi_handle pci_region)
{
acpi_status status;
- struct acpi_pci_device *list_head = NULL;
+ struct acpi_pci_device *list_head;
ACPI_FUNCTION_TRACE(hw_derive_pci_id);
@@ -177,13 +177,13 @@ acpi_hw_build_pci_list(acpi_handle root_pci_device,
acpi_handle parent_device;
acpi_status status;
struct acpi_pci_device *list_element;
- struct acpi_pci_device *list_head = NULL;
/*
* Ascend namespace branch until the root_pci_device is reached, building
* a list of device nodes. Loop will exit when either the PCI device is
* found, or the root of the namespace is reached.
*/
+ *return_list_head = NULL;
current_device = pci_region;
while (1) {
status = acpi_get_parent(current_device, &parent_device);
@@ -198,7 +198,6 @@ acpi_hw_build_pci_list(acpi_handle root_pci_device,
/* Finished when we reach the PCI root device (PNP0A03 or PNP0A08) */
if (parent_device == root_pci_device) {
- *return_list_head = list_head;
return (AE_OK);
}
@@ -213,9 +212,9 @@ acpi_hw_build_pci_list(acpi_handle root_pci_device,
/* Put new element at the head of the list */
- list_element->next = list_head;
+ list_element->next = *return_list_head;
list_element->device = parent_device;
- list_head = list_element;
+ *return_list_head = list_element;
current_device = parent_device;
}
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index 8b79958b7aca..9bb251932b45 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -316,6 +316,13 @@ acpi_ns_check_package(struct acpi_evaluate_info *info,
acpi_ns_check_package_list(info, package, elements, count);
break;
+ case ACPI_PTYPE2_VAR_VAR:
+ /*
+ * Returns a variable list of packages, each with a variable list
+ * of objects.
+ */
+ break;
+
case ACPI_PTYPE2_UUID_PAIR:
/* The package must contain pairs of (UUID + type) */
@@ -487,6 +494,12 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info,
}
break;
+ case ACPI_PTYPE2_VAR_VAR:
+ /*
+ * Each subpackage has a fixed or variable number of elements
+ */
+ break;
+
case ACPI_PTYPE2_FIXED:
/* Each subpackage has a fixed length */
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index 151fcd95ba84..77d8103d0094 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -497,10 +497,10 @@ acpi_ns_remove_null_elements(struct acpi_evaluate_info *info,
case ACPI_PTYPE2_MIN:
case ACPI_PTYPE2_REV_FIXED:
case ACPI_PTYPE2_FIX_VAR:
-
break;
default:
+ case ACPI_PTYPE2_VAR_VAR:
case ACPI_PTYPE1_FIXED:
case ACPI_PTYPE1_OPTION:
return;
diff --git a/drivers/acpi/acpica/psopinfo.c b/drivers/acpi/acpica/psopinfo.c
index 20e1a35169fc..58310907fa7b 100644
--- a/drivers/acpi/acpica/psopinfo.c
+++ b/drivers/acpi/acpica/psopinfo.c
@@ -50,9 +50,6 @@
#define _COMPONENT ACPI_PARSER
ACPI_MODULE_NAME("psopinfo")
-extern const u8 acpi_gbl_short_op_index[];
-extern const u8 acpi_gbl_long_op_index[];
-
static const u8 acpi_gbl_argument_count[] =
{ 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 6 };
diff --git a/drivers/acpi/acpica/utfileio.c b/drivers/acpi/acpica/utfileio.c
index 7e1168be39fa..857af824337b 100644
--- a/drivers/acpi/acpica/utfileio.c
+++ b/drivers/acpi/acpica/utfileio.c
@@ -198,11 +198,8 @@ acpi_ut_read_table(FILE * fp,
table_header.length, file_size);
#ifdef ACPI_ASL_COMPILER
- status = fl_check_for_ascii(fp, NULL, FALSE);
- if (ACPI_SUCCESS(status)) {
- acpi_os_printf
- ("File appears to be ASCII only, must be binary\n");
- }
+ acpi_os_printf("File is corrupt or is ASCII text -- "
+ "it must be a binary file\n");
#endif
return (AE_BAD_HEADER);
}
@@ -315,7 +312,7 @@ acpi_ut_read_table_from_file(char *filename, struct acpi_table_header ** table)
/* Get the entire file */
fprintf(stderr,
- "Loading Acpi table from file %10s - Length %.8u (%06X)\n",
+ "Reading ACPI table from file %10s - Length %.8u (0x%06X)\n",
filename, file_size, file_size);
status = acpi_ut_read_table(file, table, &table_length);
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index a72685c1e819..5e8df9177da4 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -102,19 +102,12 @@ const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
{"_SB_", ACPI_TYPE_DEVICE, NULL},
{"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
{"_TZ_", ACPI_TYPE_DEVICE, NULL},
- /*
- * March, 2015:
- * The _REV object is in the process of being deprecated, because
- * other ACPI implementations permanently return 2. Thus, it
- * has little or no value. Return 2 for compatibility with
- * other ACPI implementations.
- */
- {"_REV", ACPI_TYPE_INTEGER, ACPI_CAST_PTR(char, 2)},
+ {"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
{"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
- {"_GL_", ACPI_TYPE_MUTEX, ACPI_CAST_PTR(char, 1)},
+ {"_GL_", ACPI_TYPE_MUTEX, (char *)1},
#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
- {"_OSI", ACPI_TYPE_METHOD, ACPI_CAST_PTR(char, 1)},
+ {"_OSI", ACPI_TYPE_METHOD, (char *)1},
#endif
/* Table terminator */
diff --git a/drivers/acpi/acpica/uthex.c b/drivers/acpi/acpica/uthex.c
index aa448278ba28..fda8b3def81c 100644
--- a/drivers/acpi/acpica/uthex.c
+++ b/drivers/acpi/acpica/uthex.c
@@ -75,9 +75,9 @@ char acpi_ut_hex_to_ascii_char(u64 integer, u32 position)
/*******************************************************************************
*
- * FUNCTION: acpi_ut_hex_char_to_value
+ * FUNCTION: acpi_ut_ascii_char_to_hex
*
- * PARAMETERS: ascii_char - Hex character in Ascii
+ * PARAMETERS: hex_char - Hex character in Ascii
*
* RETURN: The binary value of the ascii/hex character
*
diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c
index 306e785f9418..98d578753101 100644
--- a/drivers/acpi/acpica/utxferror.c
+++ b/drivers/acpi/acpica/utxferror.c
@@ -107,9 +107,16 @@ acpi_exception(const char *module_name,
va_list arg_list;
ACPI_MSG_REDIRECT_BEGIN;
- acpi_os_printf(ACPI_MSG_EXCEPTION "%s, ",
- acpi_format_exception(status));
+ /* For AE_OK, just print the message */
+
+ if (ACPI_SUCCESS(status)) {
+ acpi_os_printf(ACPI_MSG_EXCEPTION);
+
+ } else {
+ acpi_os_printf(ACPI_MSG_EXCEPTION "%s, ",
+ acpi_format_exception(status));
+ }
va_start(arg_list, format);
acpi_os_vprintf(format, arg_list);
ACPI_MSG_SUFFIX;
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index c412fdb28d34..513e7230e3d0 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -470,6 +470,16 @@ static int __init acpi_bus_init_irq(void)
return 0;
}
+/**
+ * acpi_early_init - Initialize ACPICA and populate the ACPI namespace.
+ *
+ * The ACPI tables are accessible after this, but the handling of events has not
+ * been initialized and the global lock is not available yet, so AML should not
+ * be executed at this point.
+ *
+ * Doing this before switching the EFI runtime services to virtual mode allows
+ * the EfiBootServices memory to be freed slightly earlier on boot.
+ */
void __init acpi_early_init(void)
{
acpi_status status;
@@ -533,26 +543,42 @@ void __init acpi_early_init(void)
acpi_gbl_FADT.sci_interrupt = acpi_sci_override_gsi;
}
#endif
+ return;
+
+ error0:
+ disable_acpi();
+}
+
+/**
+ * acpi_subsystem_init - Finalize the early initialization of ACPI.
+ *
+ * Switch over the platform to the ACPI mode (if possible), initialize the
+ * handling of ACPI events, install the interrupt and global lock handlers.
+ *
+ * Doing this too early is generally unsafe, but at the same time it needs to be
+ * done before all things that really depend on ACPI. The right spot appears to
+ * be before finalizing the EFI initialization.
+ */
+void __init acpi_subsystem_init(void)
+{
+ acpi_status status;
+
+ if (acpi_disabled)
+ return;
status = acpi_enable_subsystem(~ACPI_NO_ACPI_ENABLE);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR PREFIX "Unable to enable ACPI\n");
- goto error0;
+ disable_acpi();
+ } else {
+ /*
+ * If the system is using ACPI then we can be reasonably
+ * confident that any regulators are managed by the firmware
+ * so tell the regulator core it has everything it needs to
+ * know.
+ */
+ regulator_has_full_constraints();
}
-
- /*
- * If the system is using ACPI then we can be reasonably
- * confident that any regulators are managed by the firmware
- * so tell the regulator core it has everything it needs to
- * know.
- */
- regulator_has_full_constraints();
-
- return;
-
- error0:
- disable_acpi();
- return;
}
static int __init acpi_bus_init(void)
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index ba4a61e964be..d93628c65661 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -191,6 +191,8 @@ bool acpi_osi_is_win8(void);
/*--------------------------------------------------------------------------
Device properties
-------------------------------------------------------------------------- */
+#define ACPI_DT_NAMESPACE_HID "PRP0001"
+
void acpi_init_properties(struct acpi_device *adev);
void acpi_free_properties(struct acpi_device *adev);
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 39748bb3a543..5226a8b921ae 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -175,14 +175,10 @@ static void __init acpi_request_region (struct acpi_generic_address *gas,
if (!addr || !length)
return;
- /* Resources are never freed */
- if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_IO)
- request_region(addr, length, desc);
- else if (gas->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
- request_mem_region(addr, length, desc);
+ acpi_reserve_region(addr, length, gas->space_id, 0, desc);
}
-static int __init acpi_reserve_resources(void)
+static void __init acpi_reserve_resources(void)
{
acpi_request_region(&acpi_gbl_FADT.xpm1a_event_block, acpi_gbl_FADT.pm1_event_length,
"ACPI PM1a_EVT_BLK");
@@ -211,10 +207,7 @@ static int __init acpi_reserve_resources(void)
if (!(acpi_gbl_FADT.gpe1_block_length & 0x1))
acpi_request_region(&acpi_gbl_FADT.xgpe1_block,
acpi_gbl_FADT.gpe1_block_length, "ACPI GPE1_BLK");
-
- return 0;
}
-device_initcall(acpi_reserve_resources);
void acpi_os_printf(const char *fmt, ...)
{
@@ -1845,6 +1838,7 @@ acpi_status __init acpi_os_initialize(void)
acpi_status __init acpi_os_initialize1(void)
{
+ acpi_reserve_resources();
kacpid_wq = alloc_workqueue("kacpid", 0, 1);
kacpi_notify_wq = alloc_workqueue("kacpi_notify", 0, 1);
kacpi_hotplug_wq = alloc_ordered_workqueue("kacpi_hotplug", 0);
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index 0d083736e25b..7836e2e980f4 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -79,50 +79,51 @@ static bool acpi_properties_format_valid(const union acpi_object *properties)
static void acpi_init_of_compatible(struct acpi_device *adev)
{
const union acpi_object *of_compatible;
- struct acpi_hardware_id *hwid;
- bool acpi_of = false;
int ret;
- /*
- * Check if the special PRP0001 ACPI ID is present and in that
- * case we fill in Device Tree compatible properties for this
- * device.
- */
- list_for_each_entry(hwid, &adev->pnp.ids, list) {
- if (!strcmp(hwid->id, "PRP0001")) {
- acpi_of = true;
- break;
- }
- }
-
- if (!acpi_of)
- return;
-
ret = acpi_dev_get_property_array(adev, "compatible", ACPI_TYPE_STRING,
&of_compatible);
if (ret) {
ret = acpi_dev_get_property(adev, "compatible",
ACPI_TYPE_STRING, &of_compatible);
if (ret) {
- acpi_handle_warn(adev->handle,
- "PRP0001 requires compatible property\n");
+ if (adev->parent
+ && adev->parent->flags.of_compatible_ok)
+ goto out;
+
return;
}
}
adev->data.of_compatible = of_compatible;
+
+ out:
+ adev->flags.of_compatible_ok = 1;
}
void acpi_init_properties(struct acpi_device *adev)
{
struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER };
+ bool acpi_of = false;
+ struct acpi_hardware_id *hwid;
const union acpi_object *desc;
acpi_status status;
int i;
+ /*
+ * Check if ACPI_DT_NAMESPACE_HID is present and inthat case we fill in
+ * Device Tree compatible properties for this device.
+ */
+ list_for_each_entry(hwid, &adev->pnp.ids, list) {
+ if (!strcmp(hwid->id, ACPI_DT_NAMESPACE_HID)) {
+ acpi_of = true;
+ break;
+ }
+ }
+
status = acpi_evaluate_object_typed(adev->handle, "_DSD", NULL, &buf,
ACPI_TYPE_PACKAGE);
if (ACPI_FAILURE(status))
- return;
+ goto out;
desc = buf.pointer;
if (desc->package.count % 2)
@@ -156,13 +157,20 @@ void acpi_init_properties(struct acpi_device *adev)
adev->data.pointer = buf.pointer;
adev->data.properties = properties;
- acpi_init_of_compatible(adev);
- return;
+ if (acpi_of)
+ acpi_init_of_compatible(adev);
+
+ goto out;
}
fail:
- dev_warn(&adev->dev, "Returned _DSD data is not valid, skipping\n");
+ dev_dbg(&adev->dev, "Returned _DSD data is not valid, skipping\n");
ACPI_FREE(buf.pointer);
+
+ out:
+ if (acpi_of && !adev->flags.of_compatible_ok)
+ acpi_handle_info(adev->handle,
+ ACPI_DT_NAMESPACE_HID " requires 'compatible' property\n");
}
void acpi_free_properties(struct acpi_device *adev)
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 5589a6e2a023..fcb7807ea8b7 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -26,6 +26,7 @@
#include <linux/device.h>
#include <linux/export.h>
#include <linux/ioport.h>
+#include <linux/list.h>
#include <linux/slab.h>
#ifdef CONFIG_X86
@@ -573,7 +574,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_get_resources);
* @ares: Input ACPI resource object.
* @types: Valid resource types of IORESOURCE_XXX
*
- * This is a hepler function to support acpi_dev_get_resources(), which filters
+ * This is a helper function to support acpi_dev_get_resources(), which filters
* ACPI resource objects according to resource types.
*/
int acpi_dev_filter_resource_type(struct acpi_resource *ares,
@@ -621,3 +622,162 @@ int acpi_dev_filter_resource_type(struct acpi_resource *ares,
return (type & types) ? 0 : 1;
}
EXPORT_SYMBOL_GPL(acpi_dev_filter_resource_type);
+
+struct reserved_region {
+ struct list_head node;
+ u64 start;
+ u64 end;
+};
+
+static LIST_HEAD(reserved_io_regions);
+static LIST_HEAD(reserved_mem_regions);
+
+static int request_range(u64 start, u64 end, u8 space_id, unsigned long flags,
+ char *desc)
+{
+ unsigned int length = end - start + 1;
+ struct resource *res;
+
+ res = space_id == ACPI_ADR_SPACE_SYSTEM_IO ?
+ request_region(start, length, desc) :
+ request_mem_region(start, length, desc);
+ if (!res)
+ return -EIO;
+
+ res->flags &= ~flags;
+ return 0;
+}
+
+static int add_region_before(u64 start, u64 end, u8 space_id,
+ unsigned long flags, char *desc,
+ struct list_head *head)
+{
+ struct reserved_region *reg;
+ int error;
+
+ reg = kmalloc(sizeof(*reg), GFP_KERNEL);
+ if (!reg)
+ return -ENOMEM;
+
+ error = request_range(start, end, space_id, flags, desc);
+ if (error)
+ return error;
+
+ reg->start = start;
+ reg->end = end;
+ list_add_tail(&reg->node, head);
+ return 0;
+}
+
+/**
+ * acpi_reserve_region - Reserve an I/O or memory region as a system resource.
+ * @start: Starting address of the region.
+ * @length: Length of the region.
+ * @space_id: Identifier of address space to reserve the region from.
+ * @flags: Resource flags to clear for the region after requesting it.
+ * @desc: Region description (for messages).
+ *
+ * Reserve an I/O or memory region as a system resource to prevent others from
+ * using it. If the new region overlaps with one of the regions (in the given
+ * address space) already reserved by this routine, only the non-overlapping
+ * parts of it will be reserved.
+ *
+ * Returned is either 0 (success) or a negative error code indicating a resource
+ * reservation problem. It is the code of the first encountered error, but the
+ * routine doesn't abort until it has attempted to request all of the parts of
+ * the new region that don't overlap with other regions reserved previously.
+ *
+ * The resources requested by this routine are never released.
+ */
+int acpi_reserve_region(u64 start, unsigned int length, u8 space_id,
+ unsigned long flags, char *desc)
+{
+ struct list_head *regions;
+ struct reserved_region *reg;
+ u64 end = start + length - 1;
+ int ret = 0, error = 0;
+
+ if (space_id == ACPI_ADR_SPACE_SYSTEM_IO)
+ regions = &reserved_io_regions;
+ else if (space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
+ regions = &reserved_mem_regions;
+ else
+ return -EINVAL;
+
+ if (list_empty(regions))
+ return add_region_before(start, end, space_id, flags, desc, regions);
+
+ list_for_each_entry(reg, regions, node)
+ if (reg->start == end + 1) {
+ /* The new region can be prepended to this one. */
+ ret = request_range(start, end, space_id, flags, desc);
+ if (!ret)
+ reg->start = start;
+
+ return ret;
+ } else if (reg->start > end) {
+ /* No overlap. Add the new region here and get out. */
+ return add_region_before(start, end, space_id, flags,
+ desc, &reg->node);
+ } else if (reg->end == start - 1) {
+ goto combine;
+ } else if (reg->end >= start) {
+ goto overlap;
+ }
+
+ /* The new region goes after the last existing one. */
+ return add_region_before(start, end, space_id, flags, desc, regions);
+
+ overlap:
+ /*
+ * The new region overlaps an existing one.
+ *
+ * The head part of the new region immediately preceding the existing
+ * overlapping one can be combined with it right away.
+ */
+ if (reg->start > start) {
+ error = request_range(start, reg->start - 1, space_id, flags, desc);
+ if (error)
+ ret = error;
+ else
+ reg->start = start;
+ }
+
+ combine:
+ /*
+ * The new region is adjacent to an existing one. If it extends beyond
+ * that region all the way to the next one, it is possible to combine
+ * all three of them.
+ */
+ while (reg->end < end) {
+ struct reserved_region *next = NULL;
+ u64 a = reg->end + 1, b = end;
+
+ if (!list_is_last(&reg->node, regions)) {
+ next = list_next_entry(reg, node);
+ if (next->start <= end)
+ b = next->start - 1;
+ }
+ error = request_range(a, b, space_id, flags, desc);
+ if (!error) {
+ if (next && next->start == b + 1) {
+ reg->end = next->end;
+ list_del(&next->node);
+ kfree(next);
+ } else {
+ reg->end = end;
+ break;
+ }
+ } else if (next) {
+ if (!ret)
+ ret = error;
+
+ reg = next;
+ } else {
+ break;
+ }
+ }
+
+ return ret ? ret : error;
+}
+EXPORT_SYMBOL_GPL(acpi_reserve_region);
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index 26e5b5060523..bf034f8b7c1a 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -14,6 +14,7 @@
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/interrupt.h>
+#include <linux/dmi.h>
#include "sbshc.h"
#define PREFIX "ACPI: "
@@ -87,6 +88,8 @@ enum acpi_smb_offset {
ACPI_SMB_ALARM_DATA = 0x26, /* 2 bytes alarm data */
};
+static bool macbook;
+
static inline int smb_hc_read(struct acpi_smb_hc *hc, u8 address, u8 *data)
{
return ec_read(hc->offset + address, data);
@@ -132,6 +135,8 @@ static int acpi_smbus_transaction(struct acpi_smb_hc *hc, u8 protocol,
}
mutex_lock(&hc->lock);
+ if (macbook)
+ udelay(5);
if (smb_hc_read(hc, ACPI_SMB_PROTOCOL, &temp))
goto end;
if (temp) {
@@ -257,12 +262,29 @@ extern int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit,
acpi_handle handle, acpi_ec_query_func func,
void *data);
+static int macbook_dmi_match(const struct dmi_system_id *d)
+{
+ pr_debug("Detected MacBook, enabling workaround\n");
+ macbook = true;
+ return 0;
+}
+
+static struct dmi_system_id acpi_smbus_dmi_table[] = {
+ { macbook_dmi_match, "Apple MacBook", {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "MacBook") },
+ },
+ { },
+};
+
static int acpi_smbus_hc_add(struct acpi_device *device)
{
int status;
unsigned long long val;
struct acpi_smb_hc *hc;
+ dmi_check_system(acpi_smbus_dmi_table);
+
if (!device)
return -EINVAL;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 03141aa4ea95..0a099917a006 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -135,12 +135,13 @@ static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias,
struct acpi_hardware_id *id;
/*
- * Since we skip PRP0001 from the modalias below, 0 should be returned
- * if PRP0001 is the only ACPI/PNP ID in the device's list.
+ * Since we skip ACPI_DT_NAMESPACE_HID from the modalias below, 0 should
+ * be returned if ACPI_DT_NAMESPACE_HID is the only ACPI/PNP ID in the
+ * device's list.
*/
count = 0;
list_for_each_entry(id, &acpi_dev->pnp.ids, list)
- if (strcmp(id->id, "PRP0001"))
+ if (strcmp(id->id, ACPI_DT_NAMESPACE_HID))
count++;
if (!count)
@@ -153,7 +154,7 @@ static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias,
size -= len;
list_for_each_entry(id, &acpi_dev->pnp.ids, list) {
- if (!strcmp(id->id, "PRP0001"))
+ if (!strcmp(id->id, ACPI_DT_NAMESPACE_HID))
continue;
count = snprintf(&modalias[len], size, "%s:", id->id);
@@ -177,7 +178,8 @@ static int create_pnp_modalias(struct acpi_device *acpi_dev, char *modalias,
* @size: Size of the buffer.
*
* Expose DT compatible modalias as of:NnameTCcompatible. This function should
- * only be called for devices having PRP0001 in their list of ACPI/PNP IDs.
+ * only be called for devices having ACPI_DT_NAMESPACE_HID in their list of
+ * ACPI/PNP IDs.
*/
static int create_of_modalias(struct acpi_device *acpi_dev, char *modalias,
int size)
@@ -980,9 +982,9 @@ static void acpi_device_remove_files(struct acpi_device *dev)
* @adev: ACPI device object to match.
* @of_match_table: List of device IDs to match against.
*
- * If @dev has an ACPI companion which has the special PRP0001 device ID in its
- * list of identifiers and a _DSD object with the "compatible" property, use
- * that property to match against the given list of identifiers.
+ * If @dev has an ACPI companion which has ACPI_DT_NAMESPACE_HID in its list of
+ * identifiers and a _DSD object with the "compatible" property, use that
+ * property to match against the given list of identifiers.
*/
static bool acpi_of_match_device(struct acpi_device *adev,
const struct of_device_id *of_match_table)
@@ -1038,14 +1040,14 @@ static const struct acpi_device_id *__acpi_match_device(
return id;
/*
- * Next, check the special "PRP0001" ID and try to match the
+ * Next, check ACPI_DT_NAMESPACE_HID and try to match the
* "compatible" property if found.
*
* The id returned by the below is not valid, but the only
* caller passing non-NULL of_ids here is only interested in
* whether or not the return value is NULL.
*/
- if (!strcmp("PRP0001", hwid->id)
+ if (!strcmp(ACPI_DT_NAMESPACE_HID, hwid->id)
&& acpi_of_match_device(device, of_ids))
return id;
}
@@ -1671,7 +1673,7 @@ static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
static void acpi_wakeup_gpe_init(struct acpi_device *device)
{
- struct acpi_device_id button_device_ids[] = {
+ static const struct acpi_device_id button_device_ids[] = {
{"PNP0C0C", 0},
{"PNP0C0D", 0},
{"PNP0C0E", 0},
@@ -2405,7 +2407,7 @@ static void acpi_default_enumeration(struct acpi_device *device)
}
static const struct acpi_device_id generic_device_ids[] = {
- {"PRP0001", },
+ {ACPI_DT_NAMESPACE_HID, },
{"", },
};
@@ -2413,8 +2415,8 @@ static int acpi_generic_device_attach(struct acpi_device *adev,
const struct acpi_device_id *not_used)
{
/*
- * Since PRP0001 is the only ID handled here, the test below can be
- * unconditional.
+ * Since ACPI_DT_NAMESPACE_HID is the only ID handled here, the test
+ * below can be unconditional.
*/
if (adev->data.of_compatible)
acpi_default_enumeration(adev);
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-11 02:47:45 +0300