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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/dispatcher/dsinit.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/dispatcher/dsinit.c')
-rw-r--r--drivers/acpi/dispatcher/dsinit.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c
index e65a07ad2422..bbdf990e9f65 100644
--- a/drivers/acpi/dispatcher/dsinit.c
+++ b/drivers/acpi/dispatcher/dsinit.c
@@ -184,7 +184,7 @@ acpi_ds_init_one_object(acpi_handle obj_handle,
184 * 184 *
185 * RETURN: Status 185 * RETURN: Status
186 * 186 *
187 * DESCRIPTION: Walk the namespace starting at "start_node" and perform any 187 * DESCRIPTION: Walk the namespace starting at "StartNode" and perform any
188 * necessary initialization on the objects found therein 188 * necessary initialization on the objects found therein
189 * 189 *
190 ******************************************************************************/ 190 ******************************************************************************/
@@ -196,7 +196,7 @@ acpi_ds_initialize_objects(struct acpi_table_desc * table_desc,
196 acpi_status status; 196 acpi_status status;
197 struct acpi_init_walk_info info; 197 struct acpi_init_walk_info info;
198 198
199 ACPI_FUNCTION_TRACE("ds_initialize_objects"); 199 ACPI_FUNCTION_TRACE(ds_initialize_objects);
200 200
201 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, 201 ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
202 "**** Starting initialization of namespace objects ****\n")); 202 "**** Starting initialization of namespace objects ****\n"));
@@ -213,7 +213,7 @@ acpi_ds_initialize_objects(struct acpi_table_desc * table_desc,
213 status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX, 213 status = acpi_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX,
214 acpi_ds_init_one_object, &info, NULL); 214 acpi_ds_init_one_object, &info, NULL);
215 if (ACPI_FAILURE(status)) { 215 if (ACPI_FAILURE(status)) {
216 ACPI_EXCEPTION((AE_INFO, status, "During walk_namespace")); 216 ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace"));
217 } 217 }
218 218
219 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, 219 ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT,