From f02e9fa1ceee045f7d5c53d475032815752a2510 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Thu, 10 Apr 2008 19:06:37 +0400
Subject: [PATCH] ACPICA: Misc fixes for recent global lock code update
Fixes as a result of running full validation test suite.
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
---
drivers/acpi/events/evxface.c | 2 +-
drivers/acpi/executer/exfield.c | 8 ++++----
drivers/acpi/executer/exmutex.c | 23 ++++++++++++++++++-----
drivers/acpi/executer/exutils.c | 11 +++++++++--
include/acpi/acinterp.h | 2 +-
5 files changed, 33 insertions(+), 13 deletions(-)
diff --git a/drivers/acpi/events/evxface.c b/drivers/acpi/events/evxface.c
index dbf34a5fc1e0a0..e210aa2d76da7b 100644
--- a/drivers/acpi/events/evxface.c
+++ b/drivers/acpi/events/evxface.c
@@ -816,7 +816,7 @@ acpi_status acpi_release_global_lock(u32 handle)
{
acpi_status status;
- if (handle != acpi_gbl_global_lock_handle) {
+ if (!handle || (handle != acpi_gbl_global_lock_handle)) {
return (AE_NOT_ACQUIRED);
}
diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c
index e66b367c4fb67b..da772cb91d7f76 100644
--- a/drivers/acpi/executer/exfield.c
+++ b/drivers/acpi/executer/exfield.c
@@ -122,7 +122,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
buffer.pointer),
ACPI_READ | (obj_desc->field.
attribute << 16));
- acpi_ex_release_global_lock();
+ acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
goto exit;
}
@@ -177,7 +177,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
/* Read from the field */
status = acpi_ex_extract_from_field(obj_desc, buffer, (u32) length);
- acpi_ex_release_global_lock();
+ acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
exit:
if (ACPI_FAILURE(status)) {
@@ -284,7 +284,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
(acpi_integer *) buffer,
ACPI_WRITE | (obj_desc->field.
attribute << 16));
- acpi_ex_release_global_lock();
+ acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
*result_desc = buffer_desc;
return_ACPI_STATUS(status);
@@ -364,7 +364,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
/* Write to the field */
status = acpi_ex_insert_into_field(obj_desc, buffer, length);
- acpi_ex_release_global_lock();
+ acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
/* Free temporary buffer if we used one */
diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c
index 32f24a8fba57e4..b8d035c00b61b7 100644
--- a/drivers/acpi/executer/exmutex.c
+++ b/drivers/acpi/executer/exmutex.c
@@ -156,6 +156,10 @@ acpi_ex_acquire_mutex_object(u16 timeout,
ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex_object, obj_desc);
+ if (!obj_desc) {
+ return_ACPI_STATUS(AE_BAD_PARAMETER);
+ }
+
/* Support for multiple acquires by the owning thread */
if (obj_desc->mutex.thread_id == thread_id) {
@@ -290,6 +294,10 @@ acpi_status acpi_ex_release_mutex_object(union acpi_operand_object *obj_desc)
ACPI_FUNCTION_TRACE(ex_release_mutex_object);
+ if (obj_desc->mutex.acquisition_depth == 0) {
+ return (AE_NOT_ACQUIRED);
+ }
+
/* Match multiple Acquires with multiple Releases */
obj_desc->mutex.acquisition_depth--;
@@ -387,17 +395,22 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
*/
if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) {
ACPI_ERROR((AE_INFO,
- "Cannot release Mutex [%4.4s], incorrect SyncLevel",
- acpi_ut_get_node_name(obj_desc->mutex.node)));
+ "Cannot release Mutex [%4.4s], SyncLevel mismatch: mutex %d current %d",
+ acpi_ut_get_node_name(obj_desc->mutex.node),
+ obj_desc->mutex.sync_level,
+ walk_state->thread->current_sync_level));
return_ACPI_STATUS(AE_AML_MUTEX_ORDER);
}
status = acpi_ex_release_mutex_object(obj_desc);
- /* Restore the original sync_level */
+ if (obj_desc->mutex.acquisition_depth == 0) {
+
+ /* Restore the original sync_level */
- walk_state->thread->current_sync_level =
- obj_desc->mutex.original_sync_level;
+ walk_state->thread->current_sync_level =
+ obj_desc->mutex.original_sync_level;
+ }
return_ACPI_STATUS(status);
}
diff --git a/drivers/acpi/executer/exutils.c b/drivers/acpi/executer/exutils.c
index c40b191f70b5d7..fd543ee547ae7e 100644
--- a/drivers/acpi/executer/exutils.c
+++ b/drivers/acpi/executer/exutils.c
@@ -278,7 +278,8 @@ void acpi_ex_acquire_global_lock(u32 field_flags)
*
* FUNCTION: acpi_ex_release_global_lock
*
- * PARAMETERS: None
+ * PARAMETERS: field_flags - Flags with Lock rule:
+ * always_lock or never_lock
*
* RETURN: None
*
@@ -286,12 +287,18 @@ void acpi_ex_acquire_global_lock(u32 field_flags)
*
******************************************************************************/
-void acpi_ex_release_global_lock(void)
+void acpi_ex_release_global_lock(u32 field_flags)
{
acpi_status status;
ACPI_FUNCTION_TRACE(ex_release_global_lock);
+ /* Only use the lock if the always_lock bit is set */
+
+ if (!(field_flags & AML_FIELD_LOCK_RULE_MASK)) {
+ return_VOID;
+ }
+
/* Release the global lock */
status = acpi_ex_release_mutex_object(acpi_gbl_global_lock_mutex);
diff --git a/include/acpi/acinterp.h b/include/acpi/acinterp.h
index 23863886e808a6..92eb0141ac8190 100644
--- a/include/acpi/acinterp.h
+++ b/include/acpi/acinterp.h
@@ -464,7 +464,7 @@ void acpi_ex_truncate_for32bit_table(union acpi_operand_object *obj_desc);
void acpi_ex_acquire_global_lock(u32 rule);
-void acpi_ex_release_global_lock(void);
+void acpi_ex_release_global_lock(u32 rule);
void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string);
--
GitLab