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ACPI: ACPICA 20060608

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Converted the locking mutex used for the ACPI hardware
to a spinlock. This change should eliminate all problems
caused by attempting to acquire a semaphore at interrupt
level, and it means that all ACPICA external interfaces
that directly access the ACPI hardware can be safely
called from interrupt level.

Fixed a regression introduced in 20060526 where the ACPI
device initialization could be prematurely aborted with
an AE_NOT_FOUND if a device did not have an optional
_INI method.

Fixed an IndexField issue where a write to the Data
Register should be limited in size to the AccessSize
(width) of the IndexField itself. (BZ 433, Fiodor Suietov)

Fixed problem reports (Valery Podrezov) integrated: - Allow
store of ThermalZone objects to Debug object.
http://bugzilla.kernel.org/show_bug.cgi?id=5369
http://bugzilla.kernel.org/show_bug.cgi?id=5370

Fixed problem reports (Fiodor Suietov) integrated: -
acpi_get_table_header() doesn't handle multiple instances
correctly (BZ 364)

Removed four global mutexes that were obsolete and were
no longer being used.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bob Moore
2006-06-08 16:29:00 -04:00
committed by Len Brown
parent 4119532c95
commit 4c90ece249
16 changed files with 131 additions and 122 deletions
Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/acpi/utilities/utmutex.c
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@@ -73,14 +73,21 @@ acpi_status acpi_ut_mutex_initialize(void)
/*
* Create each of the predefined mutex objects
*/
for (i = 0; i < NUM_MUTEX; i++) {
for (i = 0; i < ACPI_NUM_MUTEX; i++) {
status = acpi_ut_create_mutex(i);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
/* Create the spinlocks for use at interrupt level */
status = acpi_os_create_lock(&acpi_gbl_gpe_lock);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
status = acpi_os_create_lock(&acpi_gbl_hardware_lock);
return_ACPI_STATUS(status);
}
@@ -105,11 +112,14 @@ void acpi_ut_mutex_terminate(void)
/*
* Delete each predefined mutex object
*/
for (i = 0; i < NUM_MUTEX; i++) {
for (i = 0; i < ACPI_NUM_MUTEX; i++) {
(void)acpi_ut_delete_mutex(i);
}
/* Delete the spinlocks */
acpi_os_delete_lock(acpi_gbl_gpe_lock);
acpi_os_delete_lock(acpi_gbl_hardware_lock);
return_VOID;
}
@@ -131,7 +141,7 @@ static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
ACPI_FUNCTION_TRACE_U32(ut_create_mutex, mutex_id);
if (mutex_id > MAX_MUTEX) {
if (mutex_id > ACPI_MAX_MUTEX) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
@@ -165,7 +175,7 @@ static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
ACPI_FUNCTION_TRACE_U32(ut_delete_mutex, mutex_id);
if (mutex_id > MAX_MUTEX) {
if (mutex_id > ACPI_MAX_MUTEX) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
@@ -196,7 +206,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
ACPI_FUNCTION_NAME(ut_acquire_mutex);
if (mutex_id > MAX_MUTEX) {
if (mutex_id > ACPI_MAX_MUTEX) {
return (AE_BAD_PARAMETER);
}
@@ -213,7 +223,7 @@ acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
* the mutex ordering rule. This indicates a coding error somewhere in
* the ACPI subsystem code.
*/
for (i = mutex_id; i < MAX_MUTEX; i++) {
for (i = mutex_id; i < ACPI_MAX_MUTEX; i++) {
if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
if (i == mutex_id) {
ACPI_ERROR((AE_INFO,
@@ -284,7 +294,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
"Thread %X releasing Mutex [%s]\n", this_thread_id,
acpi_ut_get_mutex_name(mutex_id)));
if (mutex_id > MAX_MUTEX) {
if (mutex_id > ACPI_MAX_MUTEX) {
return (AE_BAD_PARAMETER);
}
@@ -309,7 +319,7 @@ acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
* ordering rule. This indicates a coding error somewhere in
* the ACPI subsystem code.
*/
for (i = mutex_id; i < MAX_MUTEX; i++) {
for (i = mutex_id; i < ACPI_MAX_MUTEX; i++) {
if (acpi_gbl_mutex_info[i].thread_id == this_thread_id) {
if (i == mutex_id) {
continue;