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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/executer/exnames.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/executer/exnames.c')
-rw-r--r--drivers/acpi/executer/exnames.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c
index 085b18f8dd00..d3d70364626c 100644
--- a/drivers/acpi/executer/exnames.c
+++ b/drivers/acpi/executer/exnames.c
@@ -77,7 +77,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs)
77 char *name_string; 77 char *name_string;
78 u32 size_needed; 78 u32 size_needed;
79 79
80 ACPI_FUNCTION_TRACE("ex_allocate_name_string"); 80 ACPI_FUNCTION_TRACE(ex_allocate_name_string);
81 81
82 /* 82 /*
83 * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix. 83 * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix.
@@ -162,7 +162,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string)
162 u32 index; 162 u32 index;
163 char char_buf[5]; 163 char char_buf[5];
164 164
165 ACPI_FUNCTION_TRACE("ex_name_segment"); 165 ACPI_FUNCTION_TRACE(ex_name_segment);
166 166
167 /* 167 /*
168 * If first character is a digit, then we know that we aren't looking at a 168 * If first character is a digit, then we know that we aren't looking at a
@@ -253,7 +253,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
253 u32 prefix_count = 0; 253 u32 prefix_count = 0;
254 u8 has_prefix = FALSE; 254 u8 has_prefix = FALSE;
255 255
256 ACPI_FUNCTION_TRACE_PTR("ex_get_name_string", aml_address); 256 ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address);
257 257
258 if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type || 258 if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type ||
259 ACPI_TYPE_LOCAL_BANK_FIELD == data_type || 259 ACPI_TYPE_LOCAL_BANK_FIELD == data_type ||
@@ -277,7 +277,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
277 case AML_ROOT_PREFIX: 277 case AML_ROOT_PREFIX:
278 278
279 ACPI_DEBUG_PRINT((ACPI_DB_LOAD, 279 ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
280 "root_prefix(\\) at %p\n", 280 "RootPrefix(\\) at %p\n",
281 aml_address)); 281 aml_address));
282 282
283 /* 283 /*
@@ -295,7 +295,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
295 295
296 do { 296 do {
297 ACPI_DEBUG_PRINT((ACPI_DB_LOAD, 297 ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
298 "parent_prefix (^) at %p\n", 298 "ParentPrefix (^) at %p\n",
299 aml_address)); 299 aml_address));
300 300
301 aml_address++; 301 aml_address++;
@@ -319,7 +319,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
319 case AML_DUAL_NAME_PREFIX: 319 case AML_DUAL_NAME_PREFIX:
320 320
321 ACPI_DEBUG_PRINT((ACPI_DB_LOAD, 321 ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
322 "dual_name_prefix at %p\n", 322 "DualNamePrefix at %p\n",
323 aml_address)); 323 aml_address));
324 324
325 aml_address++; 325 aml_address++;
@@ -346,7 +346,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
346 case AML_MULTI_NAME_PREFIX_OP: 346 case AML_MULTI_NAME_PREFIX_OP:
347 347
348 ACPI_DEBUG_PRINT((ACPI_DB_LOAD, 348 ACPI_DEBUG_PRINT((ACPI_DB_LOAD,
349 "multi_name_prefix at %p\n", 349 "MultiNamePrefix at %p\n",
350 aml_address)); 350 aml_address));
351 351
352 /* Fetch count of segments remaining in name path */ 352 /* Fetch count of segments remaining in name path */
@@ -382,7 +382,7 @@ acpi_ex_get_name_string(acpi_object_type data_type,
382 382
383 if (prefix_count == ACPI_UINT32_MAX) { 383 if (prefix_count == ACPI_UINT32_MAX) {
384 ACPI_DEBUG_PRINT((ACPI_DB_EXEC, 384 ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
385 "name_seg is \"\\\" followed by NULL\n")); 385 "NameSeg is \"\\\" followed by NULL\n"));
386 } 386 }
387 387
388 /* Consume the NULL byte */ 388 /* Consume the NULL byte */