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authorRobert Moore <robert.moore@intel.com>2005-06-24 00:00:00 -0400
committerLen Brown <len.brown@intel.com>2005-07-13 23:45:36 -0400
commit73459f73e5d1602c59ebec114fc45185521353c1 (patch)
tree56c2183e345784d2be09c2f5d2530cf36221c55e /drivers/acpi/dispatcher
parent88ac00f5a841dcfc5c682000f4a6add0add8caac (diff)
ACPICA 20050617-0624 from Bob Moore <robert.moore@intel.com>
ACPICA 20050617: Moved the object cache operations into the OS interface layer (OSL) to allow the host OS to handle these operations if desired (for example, the Linux OSL will invoke the slab allocator). This support is optional; the compile time define ACPI_USE_LOCAL_CACHE may be used to utilize the original cache code in the ACPI CA core. The new OSL interfaces are shown below. See utalloc.c for an example implementation, and acpiosxf.h for the exact interface definitions. Thanks to Alexey Starikovskiy. acpi_os_create_cache acpi_os_delete_cache acpi_os_purge_cache acpi_os_acquire_object acpi_os_release_object Modified the interfaces to acpi_os_acquire_lock and acpi_os_release_lock to return and restore a flags parameter. This fits better with many OS lock models. Note: the current execution state (interrupt handler or not) is no longer passed to these interfaces. If necessary, the OSL must determine this state by itself, a simple and fast operation. Thanks to Alexey Starikovskiy. Fixed a problem in the ACPI table handling where a valid XSDT was assumed present if the revision of the RSDP was 2 or greater. According to the ACPI specification, the XSDT is optional in all cases, and the table manager therefore now checks for both an RSDP >=2 and a valid XSDT pointer. Otherwise, the RSDT pointer is used. Some ACPI 2.0 compliant BIOSs contain only the RSDT. Fixed an interpreter problem with the Mid() operator in the case of an input string where the resulting output string is of zero length. It now correctly returns a valid, null terminated string object instead of a string object with a null pointer. Fixed a problem with the control method argument handling to allow a store to an Arg object that already contains an object of type Device. The Device object is now correctly overwritten. Previously, an error was returned. ACPICA 20050624: Modified the new OSL cache interfaces to use ACPI_CACHE_T as the type for the host-defined cache object. This allows the OSL implementation to define and type this object in any manner desired, simplifying the OSL implementation. For example, ACPI_CACHE_T is defined as kmem_cache_t for Linux, and should be defined in the OS-specific header file for other operating systems as required. Changed the interface to AcpiOsAcquireObject to directly return the requested object as the function return (instead of ACPI_STATUS.) This change was made for performance reasons, since this is the purpose of the interface in the first place. acpi_os_acquire_object is now similar to the acpi_os_allocate interface. Thanks to Alexey Starikovskiy. Modified the initialization sequence in acpi_initialize_subsystem to call the OSL interface acpi_osl_initialize first, before any local initialization. This change was required because the global initialization now calls OSL interfaces. Restructured the code base to split some files because of size and/or because the code logically belonged in a separate file. New files are listed below. utilities/utcache.c /* Local cache interfaces */ utilities/utmutex.c /* Local mutex support */ utilities/utstate.c /* State object support */ parser/psloop.c /* Main AML parse loop */ Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/dispatcher')
-rw-r--r--drivers/acpi/dispatcher/dsmthdat.c15
-rw-r--r--drivers/acpi/dispatcher/dswload.c6
-rw-r--r--drivers/acpi/dispatcher/dswstate.c33
3 files changed, 8 insertions, 46 deletions
diff --git a/drivers/acpi/dispatcher/dsmthdat.c b/drivers/acpi/dispatcher/dsmthdat.c
index f7998306f756..c83d53fd6398 100644
--- a/drivers/acpi/dispatcher/dsmthdat.c
+++ b/drivers/acpi/dispatcher/dsmthdat.c
@@ -633,22 +633,11 @@ acpi_ds_store_object_to_local (
633 */ 633 */
634 if (opcode == AML_ARG_OP) { 634 if (opcode == AML_ARG_OP) {
635 /* 635 /*
636 * Make sure that the object is the correct type. This may be
637 * overkill, butit is here because references were NS nodes in
638 * the past. Now they are operand objects of type Reference.
639 */
640 if (ACPI_GET_DESCRIPTOR_TYPE (current_obj_desc) != ACPI_DESC_TYPE_OPERAND) {
641 ACPI_REPORT_ERROR ((
642 "Invalid descriptor type while storing to method arg: [%s]\n",
643 acpi_ut_get_descriptor_name (current_obj_desc)));
644 return_ACPI_STATUS (AE_AML_INTERNAL);
645 }
646
647 /*
648 * If we have a valid reference object that came from ref_of(), 636 * If we have a valid reference object that came from ref_of(),
649 * do the indirect store 637 * do the indirect store
650 */ 638 */
651 if ((current_obj_desc->common.type == ACPI_TYPE_LOCAL_REFERENCE) && 639 if ((ACPI_GET_DESCRIPTOR_TYPE (current_obj_desc) == ACPI_DESC_TYPE_OPERAND) &&
640 (current_obj_desc->common.type == ACPI_TYPE_LOCAL_REFERENCE) &&
652 (current_obj_desc->reference.opcode == AML_REF_OF_OP)) { 641 (current_obj_desc->reference.opcode == AML_REF_OF_OP)) {
653 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, 642 ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
654 "Arg (%p) is an obj_ref(Node), storing in node %p\n", 643 "Arg (%p) is an obj_ref(Node), storing in node %p\n",
diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c
index e2e0a855be2c..d2c603f54fd6 100644
--- a/drivers/acpi/dispatcher/dswload.c
+++ b/drivers/acpi/dispatcher/dswload.c
@@ -50,7 +50,7 @@
50#include <acpi/acnamesp.h> 50#include <acpi/acnamesp.h>
51#include <acpi/acevents.h> 51#include <acpi/acevents.h>
52 52
53#ifdef _ACPI_ASL_COMPILER 53#ifdef ACPI_ASL_COMPILER
54#include <acpi/acdisasm.h> 54#include <acpi/acdisasm.h>
55#endif 55#endif
56 56
@@ -176,7 +176,7 @@ acpi_ds_load1_begin_op (
176 */ 176 */
177 status = acpi_ns_lookup (walk_state->scope_info, path, object_type, 177 status = acpi_ns_lookup (walk_state->scope_info, path, object_type,
178 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, &(node)); 178 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, walk_state, &(node));
179#ifdef _ACPI_ASL_COMPILER 179#ifdef ACPI_ASL_COMPILER
180 if (status == AE_NOT_FOUND) { 180 if (status == AE_NOT_FOUND) {
181 /* 181 /*
182 * Table disassembly: 182 * Table disassembly:
@@ -569,7 +569,7 @@ acpi_ds_load2_begin_op (
569 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT, 569 ACPI_IMODE_EXECUTE, ACPI_NS_SEARCH_PARENT,
570 walk_state, &(node)); 570 walk_state, &(node));
571 if (ACPI_FAILURE (status)) { 571 if (ACPI_FAILURE (status)) {
572#ifdef _ACPI_ASL_COMPILER 572#ifdef ACPI_ASL_COMPILER
573 if (status == AE_NOT_FOUND) { 573 if (status == AE_NOT_FOUND) {
574 status = AE_OK; 574 status = AE_OK;
575 } 575 }
diff --git a/drivers/acpi/dispatcher/dswstate.c b/drivers/acpi/dispatcher/dswstate.c
index cc45d52225d6..d360d8e89544 100644
--- a/drivers/acpi/dispatcher/dswstate.c
+++ b/drivers/acpi/dispatcher/dswstate.c
@@ -681,7 +681,7 @@ acpi_ds_create_walk_state (
681 ACPI_FUNCTION_TRACE ("ds_create_walk_state"); 681 ACPI_FUNCTION_TRACE ("ds_create_walk_state");
682 682
683 683
684 walk_state = acpi_ut_acquire_from_cache (ACPI_MEM_LIST_WALK); 684 walk_state = ACPI_MEM_CALLOCATE (sizeof (struct acpi_walk_state));
685 if (!walk_state) { 685 if (!walk_state) {
686 return_PTR (NULL); 686 return_PTR (NULL);
687 } 687 }
@@ -704,7 +704,7 @@ acpi_ds_create_walk_state (
704 704
705 status = acpi_ds_result_stack_push (walk_state); 705 status = acpi_ds_result_stack_push (walk_state);
706 if (ACPI_FAILURE (status)) { 706 if (ACPI_FAILURE (status)) {
707 acpi_ut_release_to_cache (ACPI_MEM_LIST_WALK, walk_state); 707 ACPI_MEM_FREE (walk_state);
708 return_PTR (NULL); 708 return_PTR (NULL);
709 } 709 }
710 710
@@ -900,38 +900,11 @@ acpi_ds_delete_walk_state (
900 acpi_ut_delete_generic_state (state); 900 acpi_ut_delete_generic_state (state);
901 } 901 }
902 902
903 acpi_ut_release_to_cache (ACPI_MEM_LIST_WALK, walk_state); 903 ACPI_MEM_FREE (walk_state);
904 return_VOID; 904 return_VOID;
905} 905}
906 906
907 907
908#ifdef ACPI_ENABLE_OBJECT_CACHE
909/******************************************************************************
910 *
911 * FUNCTION: acpi_ds_delete_walk_state_cache
912 *
913 * PARAMETERS: None
914 *
915 * RETURN: None
916 *
917 * DESCRIPTION: Purge the global state object cache. Used during subsystem
918 * termination.
919 *
920 ******************************************************************************/
921
922void
923acpi_ds_delete_walk_state_cache (
924 void)
925{
926 ACPI_FUNCTION_TRACE ("ds_delete_walk_state_cache");
927
928
929 acpi_ut_delete_generic_cache (ACPI_MEM_LIST_WALK);
930 return_VOID;
931}
932#endif
933
934
935#ifdef ACPI_OBSOLETE_FUNCTIONS 908#ifdef ACPI_OBSOLETE_FUNCTIONS
936/******************************************************************************* 909/*******************************************************************************
937 * 910 *