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authorBob Moore <robert.moore@intel.com>2006-04-21 17:15:00 -0400
committerLen Brown <len.brown@intel.com>2006-06-14 02:30:55 -0400
commitb229cf92eee616c7cb5ad8cdb35a19b119f00bc8 (patch)
tree74b52bec6ec029859c2320aba227290a503af31a /drivers/acpi/events/evregion.c
parent793c2388cae3fd023b3b5166354931752d42353c (diff)
ACPI: ACPICA 20060421
Removed a device initialization optimization introduced in 20051216 where the _STA method was not run unless an _INI was also present for the same device. This optimization could cause problems because it could allow _INI methods to be run within a not-present device subtree (If a not-present device had no _INI, _STA would not be run, the not-present status would not be discovered, and the children of the device would be incorrectly traversed.) Implemented a new _STA optimization where namespace subtrees that do not contain _INI are identified and ignored during device initialization. Selectively running _STA can significantly improve boot time on large machines (with assistance from Len Brown.) Implemented support for the device initialization case where the returned _STA flags indicate a device not-present but functioning. In this case, _INI is not run, but the device children are examined for presence, as per the ACPI specification. Implemented an additional change to the IndexField support in order to conform to MS behavior. The value written to the Index Register is not simply a byte offset, it is a byte offset in units of the access width of the parent Index Field. (Fiodor Suietov) Defined and deployed a new OSL interface, acpi_os_validate_address(). This interface is called during the creation of all AML operation regions, and allows the host OS to exert control over what addresses it will allow the AML code to access. Operation Regions whose addresses are disallowed will cause a runtime exception when they are actually accessed (will not affect or abort table loading.) Defined and deployed a new OSL interface, acpi_os_validate_interface(). This interface allows the host OS to match the various "optional" interface/behavior strings for the _OSI predefined control method as appropriate (with assistance from Bjorn Helgaas.) Restructured and corrected various problems in the exception handling code paths within DsCallControlMethod and DsTerminateControlMethod in dsmethod (with assistance from Takayoshi Kochi.) Modified the Linux source converter to ignore quoted string literals while converting identifiers from mixed to lower case. This will correct problems with the disassembler and other areas where such strings must not be modified. The ACPI_FUNCTION_* macros no longer require quotes around the function name. This allows the Linux source converter to convert the names, now that the converter ignores quoted strings. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/events/evregion.c')
-rw-r--r--drivers/acpi/events/evregion.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index 0337ad222b26..eb29e96f053c 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -83,7 +83,7 @@ acpi_status acpi_ev_install_region_handlers(void)
83 acpi_status status; 83 acpi_status status;
84 acpi_native_uint i; 84 acpi_native_uint i;
85 85
86 ACPI_FUNCTION_TRACE("ev_install_region_handlers"); 86 ACPI_FUNCTION_TRACE(ev_install_region_handlers);
87 87
88 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 88 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
89 if (ACPI_FAILURE(status)) { 89 if (ACPI_FAILURE(status)) {
@@ -153,7 +153,7 @@ acpi_status acpi_ev_initialize_op_regions(void)
153 acpi_status status; 153 acpi_status status;
154 acpi_native_uint i; 154 acpi_native_uint i;
155 155
156 ACPI_FUNCTION_TRACE("ev_initialize_op_regions"); 156 ACPI_FUNCTION_TRACE(ev_initialize_op_regions);
157 157
158 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); 158 status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
159 if (ACPI_FAILURE(status)) { 159 if (ACPI_FAILURE(status)) {
@@ -198,7 +198,7 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
198 union acpi_operand_object *region_obj2; 198 union acpi_operand_object *region_obj2;
199 acpi_status status; 199 acpi_status status;
200 200
201 ACPI_FUNCTION_TRACE("ev_execute_reg_method"); 201 ACPI_FUNCTION_TRACE(ev_execute_reg_method);
202 202
203 region_obj2 = acpi_ns_get_secondary_object(region_obj); 203 region_obj2 = acpi_ns_get_secondary_object(region_obj);
204 if (!region_obj2) { 204 if (!region_obj2) {
@@ -284,7 +284,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
284 union acpi_operand_object *region_obj2; 284 union acpi_operand_object *region_obj2;
285 void *region_context = NULL; 285 void *region_context = NULL;
286 286
287 ACPI_FUNCTION_TRACE("ev_address_space_dispatch"); 287 ACPI_FUNCTION_TRACE(ev_address_space_dispatch);
288 288
289 region_obj2 = acpi_ns_get_secondary_object(region_obj); 289 region_obj2 = acpi_ns_get_secondary_object(region_obj);
290 if (!region_obj2) { 290 if (!region_obj2) {
@@ -451,7 +451,7 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj,
451 union acpi_operand_object *region_obj2; 451 union acpi_operand_object *region_obj2;
452 acpi_status status; 452 acpi_status status;
453 453
454 ACPI_FUNCTION_TRACE("ev_detach_region"); 454 ACPI_FUNCTION_TRACE(ev_detach_region);
455 455
456 region_obj2 = acpi_ns_get_secondary_object(region_obj); 456 region_obj2 = acpi_ns_get_secondary_object(region_obj);
457 if (!region_obj2) { 457 if (!region_obj2) {
@@ -585,7 +585,7 @@ acpi_ev_attach_region(union acpi_operand_object *handler_obj,
585 u8 acpi_ns_is_locked) 585 u8 acpi_ns_is_locked)
586{ 586{
587 587
588 ACPI_FUNCTION_TRACE("ev_attach_region"); 588 ACPI_FUNCTION_TRACE(ev_attach_region);
589 589
590 ACPI_DEBUG_PRINT((ACPI_DB_OPREGION, 590 ACPI_DEBUG_PRINT((ACPI_DB_OPREGION,
591 "Adding Region [%4.4s] %p to address handler %p [%s]\n", 591 "Adding Region [%4.4s] %p to address handler %p [%s]\n",
@@ -638,7 +638,7 @@ acpi_ev_install_handler(acpi_handle obj_handle,
638 struct acpi_namespace_node *node; 638 struct acpi_namespace_node *node;
639 acpi_status status; 639 acpi_status status;
640 640
641 ACPI_FUNCTION_NAME("ev_install_handler"); 641 ACPI_FUNCTION_NAME(ev_install_handler);
642 642
643 handler_obj = (union acpi_operand_object *)context; 643 handler_obj = (union acpi_operand_object *)context;
644 644
@@ -771,7 +771,7 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
771 acpi_object_type type; 771 acpi_object_type type;
772 u8 flags = 0; 772 u8 flags = 0;
773 773
774 ACPI_FUNCTION_TRACE("ev_install_space_handler"); 774 ACPI_FUNCTION_TRACE(ev_install_space_handler);
775 775
776 /* 776 /*
777 * This registration is valid for only the types below 777 * This registration is valid for only the types below
@@ -985,7 +985,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
985{ 985{
986 acpi_status status; 986 acpi_status status;
987 987
988 ACPI_FUNCTION_TRACE("ev_execute_reg_methods"); 988 ACPI_FUNCTION_TRACE(ev_execute_reg_methods);
989 989
990 /* 990 /*
991 * Run all _REG methods for all Operation Regions for this 991 * Run all _REG methods for all Operation Regions for this