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Merge branch 'acpica'

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* acpica:
  ACPICA: Update version to 20130725.
  ACPICA: Update names for walk_namespace callbacks to clarify usage.
  ACPICA: Return error if DerefOf resolves to a null package element.
  ACPICA: Make ACPI Power Management Timer (PM Timer) optional.
  ACPICA: Fix divergences of the commit - ACPICA: Expose OSI version.
  ACPICA: Fix possible fault for methods that optionally have no return value.
  ACPICA: DeRefOf operator: Update to fully resolve FieldUnit and BufferField refs.
  ACPICA: Emit all unresolved method externals in a text block
  ACPICA: Export acpi_tb_validate_rsdp().
  ACPI: Add facility to remove all _OSI strings
  ACPI: Add facility to disable all _OSI OS vendor strings
  ACPICA: Add acpi_update_interfaces() public interface
  ACPICA: Update version to 20130626
  ACPICA: Fix compiler warnings for casting issues (only some compilers)
  ACPICA: Remove restriction of 256 maximum GPEs in any GPE block
  ACPICA: Disassembler: Expand maximum output string length to 64K
  ACPICA: TableManager: Export acpi_tb_scan_memory_for_rsdp()
  ACPICA: Update comments about behavior when _STA does not exist
This commit is contained in:
Rafael J. Wysocki 2013-08-27 01:28:48 +02:00
commit afdca01c98
24 changed files with 323 additions and 91 deletions
Download patch file Download diff file Expand all files Collapse all files

7
drivers/acpi/acpica/acglobal.h
View file

@ -138,6 +138,12 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_auto_repair, FALSE);
*/
u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_ssdt_table_load, FALSE);
/*
* We keep track of the latest version of Windows that has been requested by
* the BIOS.
*/
u8 ACPI_INIT_GLOBAL(acpi_gbl_osi_data, 0);
/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
struct acpi_table_fadt acpi_gbl_FADT;
@ -285,7 +291,6 @@ ACPI_EXTERN u8 acpi_gbl_debugger_configuration;
ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
ACPI_EXTERN u8 acpi_gbl_events_initialized;
ACPI_EXTERN u8 acpi_gbl_osi_data;
ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces;
ACPI_EXTERN struct acpi_address_range
*acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX];

4
drivers/acpi/acpica/aclocal.h
View file

@ -942,6 +942,9 @@ struct acpi_interface_info {
#define ACPI_OSI_INVALID 0x01
#define ACPI_OSI_DYNAMIC 0x02
#define ACPI_OSI_FEATURE 0x04
#define ACPI_OSI_DEFAULT_INVALID 0x08
#define ACPI_OSI_OPTIONAL_FEATURE (ACPI_OSI_FEATURE | ACPI_OSI_DEFAULT_INVALID | ACPI_OSI_INVALID)
struct acpi_port_info {
char *name;
@ -1030,6 +1033,7 @@ struct acpi_external_list {
u8 type;
u8 flags;
u8 resolved;
u8 emitted;
};
/* Values for Flags field above */

4
drivers/acpi/acpica/acnamesp.h
View file

@ -104,8 +104,8 @@ acpi_ns_walk_namespace(acpi_object_type type,
acpi_handle start_object,
u32 max_depth,
u32 flags,
acpi_walk_callback pre_order_visit,
acpi_walk_callback post_order_visit,
acpi_walk_callback descending_callback,
acpi_walk_callback ascending_callback,
void *context, void **return_value);
struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node

7
drivers/acpi/acpica/actables.h
View file

@ -46,6 +46,13 @@
acpi_status acpi_allocate_root_table(u32 initial_table_count);
/*
* tbxfroot - Root pointer utilities
*/
acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length);
/*
* tbfadt - FADT parse/convert/validate
*/

4
drivers/acpi/acpica/acutils.h
View file

@ -470,6 +470,8 @@ acpi_status acpi_ut_install_interface(acpi_string interface_name);
acpi_status acpi_ut_remove_interface(acpi_string interface_name);
acpi_status acpi_ut_update_interfaces(u8 action);
struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name);
acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state);
@ -616,7 +618,7 @@ int acpi_ut_stricmp(char *string1, char *string2);
acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer);
void acpi_ut_print_string(char *string, u8 max_length);
void acpi_ut_print_string(char *string, u16 max_length);
void ut_convert_backslashes(char *pathname);

11
drivers/acpi/acpica/evgpeinit.c
View file

@ -125,7 +125,6 @@ acpi_status acpi_ev_gpe_initialize(void)
/* GPE block 0 exists (has both length and address > 0) */
register_count0 = (u16)(acpi_gbl_FADT.gpe0_block_length / 2);
gpe_number_max =
(register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1;
@ -204,16 +203,6 @@ acpi_status acpi_ev_gpe_initialize(void)
goto cleanup;
}
/* Check for Max GPE number out-of-range */
if (gpe_number_max > ACPI_GPE_MAX) {
ACPI_ERROR((AE_INFO,
"Maximum GPE number from FADT is too large: 0x%X",
gpe_number_max));
status = AE_BAD_VALUE;
goto cleanup;
}
cleanup:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return_ACPI_STATUS(AE_OK);

6
drivers/acpi/acpica/exdump.c
View file

@ -338,6 +338,7 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc,
{
u8 *target;
char *name;
const char *reference_name;
u8 count;
if (!info) {
@ -426,10 +427,9 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc,
case ACPI_EXD_REFERENCE:
reference_name = acpi_ut_get_reference_name(obj_desc);
acpi_ex_out_string("Class Name",
ACPI_CAST_PTR(char,
acpi_ut_get_reference_name
(obj_desc)));
ACPI_CAST_PTR(char, reference_name));
acpi_ex_dump_reference_obj(obj_desc);
break;

50
drivers/acpi/acpica/exoparg1.c
View file

@ -962,10 +962,17 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
*/
return_desc =
*(operand[0]->reference.where);
if (return_desc) {
acpi_ut_add_reference
(return_desc);
if (!return_desc) {
/*
* Element is NULL, do not allow the dereference.
* This provides compatibility with other ACPI
* implementations.
*/
return_ACPI_STATUS
(AE_AML_UNINITIALIZED_ELEMENT);
}
acpi_ut_add_reference(return_desc);
break;
default:
@ -990,11 +997,40 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
acpi_namespace_node
*)
return_desc);
if (!return_desc) {
break;
}
/*
* June 2013:
* buffer_fields/field_units require additional resolution
*/
switch (return_desc->common.type) {
case ACPI_TYPE_BUFFER_FIELD:
case ACPI_TYPE_LOCAL_REGION_FIELD:
case ACPI_TYPE_LOCAL_BANK_FIELD:
case ACPI_TYPE_LOCAL_INDEX_FIELD:
status =
acpi_ex_read_data_from_field
(walk_state, return_desc,
&temp_desc);
if (ACPI_FAILURE(status)) {
goto cleanup;
}
return_desc = temp_desc;
break;
default:
/* Add another reference to the object */
acpi_ut_add_reference
(return_desc);
break;
}
}
/* Add another reference to the object! */
acpi_ut_add_reference(return_desc);
break;
default:

13
drivers/acpi/acpica/hwtimer.c
View file

@ -100,8 +100,13 @@ acpi_status acpi_get_timer(u32 * ticks)
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block);
/* ACPI 5.0A: PM Timer is optional */
if (!acpi_gbl_FADT.xpm_timer_block.address) {
return_ACPI_STATUS(AE_SUPPORT);
}
status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block);
return_ACPI_STATUS(status);
}
@ -148,6 +153,12 @@ acpi_get_timer_duration(u32 start_ticks, u32 end_ticks, u32 * time_elapsed)
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
/* ACPI 5.0A: PM Timer is optional */
if (!acpi_gbl_FADT.xpm_timer_block.address) {
return_ACPI_STATUS(AE_SUPPORT);
}
/*
* Compute Tick Delta:
* Handle (max one) timer rollovers on 24-bit versus 32-bit timers.

16
drivers/acpi/acpica/nspredef.c
View file

@ -150,6 +150,15 @@ acpi_ns_check_return_value(struct acpi_namespace_node *node,
goto exit;
}
/*
*
* 4) If there is no return value and it is optional, just return
* AE_OK (_WAK).
*/
if (!(*return_object_ptr)) {
goto exit;
}
/*
* For returned Package objects, check the type of all sub-objects.
* Note: Package may have been newly created by call above.
@ -268,7 +277,12 @@ acpi_ns_check_object_type(struct acpi_evaluate_info *info,
acpi_ut_get_expected_return_types(type_buffer, expected_btypes);
if (package_index == ACPI_NOT_PACKAGE_ELEMENT) {
if (!return_object) {
ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
info->node_flags,
"Expected return object of type %s",
type_buffer));
} else if (package_index == ACPI_NOT_PACKAGE_ELEMENT) {
ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
info->node_flags,
"Return type mismatch - found %s, expected %s",

26
drivers/acpi/acpica/nswalk.c
View file

@ -156,9 +156,9 @@ struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type,
* max_depth - Depth to which search is to reach
* flags - Whether to unlock the NS before invoking
* the callback routine
* pre_order_visit - Called during tree pre-order visit
* descending_callback - Called during tree descent
* when an object of "Type" is found
* post_order_visit - Called during tree post-order visit
* ascending_callback - Called during tree ascent
* when an object of "Type" is found
* context - Passed to user function(s) above
* return_value - from the user_function if terminated
@ -185,8 +185,8 @@ acpi_ns_walk_namespace(acpi_object_type type,
acpi_handle start_node,
u32 max_depth,
u32 flags,
acpi_walk_callback pre_order_visit,
acpi_walk_callback post_order_visit,
acpi_walk_callback descending_callback,
acpi_walk_callback ascending_callback,
void *context, void **return_value)
{
acpi_status status;
@ -255,22 +255,22 @@ acpi_ns_walk_namespace(acpi_object_type type,
}
/*
* Invoke the user function, either pre-order or post-order
* Invoke the user function, either descending, ascending,
* or both.
*/
if (!node_previously_visited) {
if (pre_order_visit) {
if (descending_callback) {
status =
pre_order_visit(child_node, level,
context,
return_value);
descending_callback(child_node,
level, context,
return_value);
}
} else {
if (post_order_visit) {
if (ascending_callback) {
status =
post_order_visit(child_node, level,
context,
return_value);
ascending_callback(child_node,
level, context,
return_value);
}
}

16
drivers/acpi/acpica/nsxfeval.c
View file

@ -533,9 +533,9 @@ static void acpi_ns_resolve_references(struct acpi_evaluate_info *info)
* PARAMETERS: type - acpi_object_type to search for
* start_object - Handle in namespace where search begins
* max_depth - Depth to which search is to reach
* pre_order_visit - Called during tree pre-order visit
* descending_callback - Called during tree descent
* when an object of "Type" is found
* post_order_visit - Called during tree post-order visit
* ascending_callback - Called during tree ascent
* when an object of "Type" is found
* context - Passed to user function(s) above
* return_value - Location where return value of
@ -563,8 +563,8 @@ acpi_status
acpi_walk_namespace(acpi_object_type type,
acpi_handle start_object,
u32 max_depth,
acpi_walk_callback pre_order_visit,
acpi_walk_callback post_order_visit,
acpi_walk_callback descending_callback,
acpi_walk_callback ascending_callback,
void *context, void **return_value)
{
acpi_status status;
@ -574,7 +574,7 @@ acpi_walk_namespace(acpi_object_type type,
/* Parameter validation */
if ((type > ACPI_TYPE_LOCAL_MAX) ||
(!max_depth) || (!pre_order_visit && !post_order_visit)) {
(!max_depth) || (!descending_callback && !ascending_callback)) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
@ -606,9 +606,9 @@ acpi_walk_namespace(acpi_object_type type,
}
status = acpi_ns_walk_namespace(type, start_object, max_depth,
ACPI_NS_WALK_UNLOCK, pre_order_visit,
post_order_visit, context,
return_value);
ACPI_NS_WALK_UNLOCK,
descending_callback, ascending_callback,
context, return_value);
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);

11
drivers/acpi/acpica/nsxfname.c
View file

@ -158,6 +158,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
{
acpi_status status;
struct acpi_namespace_node *node;
char *node_name;
/* Parameter validation */
@ -202,7 +203,8 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
/* Just copy the ACPI name from the Node and zero terminate it */
ACPI_MOVE_NAME(buffer->pointer, acpi_ut_get_node_name(node));
node_name = acpi_ut_get_node_name(node);
ACPI_MOVE_NAME(buffer->pointer, node_name);
((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
status = AE_OK;
@ -379,9 +381,14 @@ acpi_get_object_info(acpi_handle handle,
* Get extra info for ACPI Device/Processor objects only:
* Run the _STA, _ADR and, sx_w, and _sx_d methods.
*
* Note: none of these methods are required, so they may or may
* Notes: none of these methods are required, so they may or may
* not be present for this device. The Info->Valid bitfield is used
* to indicate which methods were found and run successfully.
*
* For _STA, if the method does not exist, then (as per the ACPI
* specification), the returned current_status flags will indicate
* that the device is present/functional/enabled. Otherwise, the
* current_status flags reflect the value returned from _STA.
*/
/* Execute the Device._STA method */

4
drivers/acpi/acpica/tbfadt.c
View file

@ -117,7 +117,7 @@ static struct acpi_fadt_info fadt_info_table[] = {
ACPI_FADT_OFFSET(pm_timer_block),
ACPI_FADT_OFFSET(pm_timer_length),
ACPI_PM_TIMER_WIDTH,
ACPI_FADT_REQUIRED},
ACPI_FADT_SEPARATE_LENGTH}, /* ACPI 5.0A: Timer is optional */
{"Gpe0Block",
ACPI_FADT_OFFSET(xgpe0_block),
@ -574,7 +574,7 @@ static void acpi_tb_validate_fadt(void)
if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
/*
* Field is required (Pm1a_event, Pm1a_control, pm_timer).
* Field is required (Pm1a_event, Pm1a_control).
* Both the address and length must be non-zero.
*/
if (!address64->address || !length) {

12
drivers/acpi/acpica/tbxfroot.c
View file

@ -48,11 +48,6 @@
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbxfroot")
/* Local prototypes */
static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length);
static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
/*******************************************************************************
*
* FUNCTION: acpi_tb_validate_rsdp
@ -64,8 +59,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
* DESCRIPTION: Validate the RSDP (ptr)
*
******************************************************************************/
static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
{
/*
@ -74,7 +68,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
* Note: Sometimes there exists more than one RSDP in memory; the valid
* RSDP has a valid checksum, all others have an invalid checksum.
*/
if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP,
if (ACPI_STRNCMP((char *)rsdp->signature, ACPI_SIG_RSDP,
sizeof(ACPI_SIG_RSDP) - 1) != 0) {
/* Nope, BAD Signature */
@ -231,7 +225,7 @@ acpi_status acpi_find_root_pointer(acpi_size *table_address)
* DESCRIPTION: Search a block of memory for the RSDP signature
*
******************************************************************************/
static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length)
{
acpi_status status;
u8 *mem_rover;

8
drivers/acpi/acpica/uteval.c
View file

@ -239,7 +239,8 @@ acpi_ut_evaluate_numeric_object(char *object_name,
* RETURN: Status
*
* DESCRIPTION: Executes _STA for selected device and stores results in
* *Flags.
* *Flags. If _STA does not exist, then the device is assumed
* to be present/functional/enabled (as per the ACPI spec).
*
* NOTE: Internal function, no parameter validation
*
@ -257,6 +258,11 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags)
ACPI_BTYPE_INTEGER, &obj_desc);
if (ACPI_FAILURE(status)) {
if (AE_NOT_FOUND == status) {
/*
* if _STA does not exist, then (as per the ACPI specification),
* the returned flags will indicate that the device is present,
* functional, and enabled.
*/
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"_STA on %4.4s was not found, assuming device is present\n",
acpi_ut_get_node_name(device_node)));

1
drivers/acpi/acpica/utglobal.c
View file

@ -336,7 +336,6 @@ acpi_status acpi_ut_init_globals(void)
acpi_gbl_trace_dbg_layer = 0;
acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
acpi_gbl_osi_data = 0;
acpi_gbl_osi_mutex = NULL;
acpi_gbl_reg_methods_executed = FALSE;

77
drivers/acpi/acpica/utosi.c
View file

@ -77,21 +77,20 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = {
/* Feature Group Strings */
{"Extended Address Space Descriptor", NULL, 0, 0}
{"Extended Address Space Descriptor", NULL, ACPI_OSI_FEATURE, 0},
/*
* All "optional" feature group strings (features that are implemented
* by the host) should be dynamically added by the host via
* acpi_install_interface and should not be manually added here.
*
* Examples of optional feature group strings:
*
* "Module Device"
* "Processor Device"
* "3.0 Thermal Model"
* "3.0 _SCP Extensions"
* "Processor Aggregator Device"
* by the host) should be dynamically modified to VALID by the host via
* acpi_install_interface or acpi_update_interfaces. Such optional feature
* group strings are set as INVALID by default here.
*/
{"Module Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
{"Processor Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
{"3.0 Thermal Model", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
{"3.0 _SCP Extensions", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
{"Processor Aggregator Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}
};
/*******************************************************************************
@ -158,11 +157,20 @@ acpi_status acpi_ut_interface_terminate(void)
while (next_interface) {
acpi_gbl_supported_interfaces = next_interface->next;
/* Only interfaces added at runtime can be freed */
if (next_interface->flags & ACPI_OSI_DYNAMIC) {
/* Only interfaces added at runtime can be freed */
ACPI_FREE(next_interface->name);
ACPI_FREE(next_interface);
} else {
/* Interface is in static list. Reset it to invalid or valid. */
if (next_interface->flags & ACPI_OSI_DEFAULT_INVALID) {
next_interface->flags |= ACPI_OSI_INVALID;
} else {
next_interface->flags &= ~ACPI_OSI_INVALID;
}
}
next_interface = acpi_gbl_supported_interfaces;
@ -276,6 +284,49 @@ acpi_status acpi_ut_remove_interface(acpi_string interface_name)
return (AE_NOT_EXIST);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_update_interfaces
*
* PARAMETERS: action - Actions to be performed during the
* update
*
* RETURN: Status
*
* DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor
* strings or/and feature group strings.
* Caller MUST hold acpi_gbl_osi_mutex
*
******************************************************************************/
acpi_status acpi_ut_update_interfaces(u8 action)
{
struct acpi_interface_info *next_interface;
next_interface = acpi_gbl_supported_interfaces;
while (next_interface) {
if (((next_interface->flags & ACPI_OSI_FEATURE) &&
(action & ACPI_FEATURE_STRINGS)) ||
(!(next_interface->flags & ACPI_OSI_FEATURE) &&
(action & ACPI_VENDOR_STRINGS))) {
if (action & ACPI_DISABLE_INTERFACES) {
/* Mark the interfaces as invalid */
next_interface->flags |= ACPI_OSI_INVALID;
} else {
/* Mark the interfaces as valid */
next_interface->flags &= ~ACPI_OSI_INVALID;
}
}
next_interface = next_interface->next;
}
return (AE_OK);
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_get_interface

5
drivers/acpi/acpica/utstring.c
View file

@ -333,7 +333,8 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
* FUNCTION: acpi_ut_print_string
*
* PARAMETERS: string - Null terminated ASCII string
* max_length - Maximum output length
* max_length - Maximum output length. Used to constrain the
* length of strings during debug output only.
*
* RETURN: None
*
@ -342,7 +343,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
*
******************************************************************************/
void acpi_ut_print_string(char *string, u8 max_length)
void acpi_ut_print_string(char *string, u16 max_length)
{
u32 i;

29
drivers/acpi/acpica/utxface.c
View file

@ -387,6 +387,34 @@ acpi_status acpi_install_interface_handler(acpi_interface_handler handler)
ACPI_EXPORT_SYMBOL(acpi_install_interface_handler)
/*****************************************************************************
*
* FUNCTION: acpi_update_interfaces
*
* PARAMETERS: action - Actions to be performed during the
* update
*
* RETURN: Status
*
* DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor
* string or/and feature group strings.
*
****************************************************************************/
acpi_status acpi_update_interfaces(u8 action)
{
acpi_status status;
status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
if (ACPI_FAILURE(status)) {
return (status);
}
status = acpi_ut_update_interfaces(action);
acpi_os_release_mutex(acpi_gbl_osi_mutex);
return (status);
}
/*****************************************************************************
*
* FUNCTION: acpi_check_address_range
@ -402,6 +430,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_interface_handler)
* ASL operation region address ranges.
*
****************************************************************************/
u32
acpi_check_address_range(acpi_adr_space_type space_id,
acpi_physical_address address,

21
drivers/acpi/osl.c
View file

@ -142,7 +142,8 @@ static struct osi_linux {
unsigned int enable:1;
unsigned int dmi:1;
unsigned int cmdline:1;
} osi_linux = {0, 0, 0};
unsigned int default_disabling:1;
} osi_linux = {0, 0, 0, 0};
static u32 acpi_osi_handler(acpi_string interface, u32 supported)
{
@ -1378,6 +1379,17 @@ void __init acpi_osi_setup(char *str)
if (*str == '!') {
str++;
if (*str == '\0') {
osi_linux.default_disabling = 1;
return;
} else if (*str == '*') {
acpi_update_interfaces(ACPI_DISABLE_ALL_STRINGS);
for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
osi = &osi_setup_entries[i];
osi->enable = false;
}
return;
}
enable = false;
}
@ -1443,6 +1455,13 @@ static void __init acpi_osi_setup_late(void)
int i;
acpi_status status;
if (osi_linux.default_disabling) {
status = acpi_update_interfaces(ACPI_DISABLE_ALL_VENDOR_STRINGS);
if (ACPI_SUCCESS(status))
printk(KERN_INFO PREFIX "Disabled all _OSI OS vendors\n");
}
for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
osi = &osi_setup_entries[i];
str = osi->string;