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-rw-r--r--drivers/acpi/utilities/utmutex.c354
1 files changed, 0 insertions, 354 deletions
diff --git a/drivers/acpi/utilities/utmutex.c b/drivers/acpi/utilities/utmutex.c
deleted file mode 100644
index 90134c56ece..00000000000
--- a/drivers/acpi/utilities/utmutex.c
+++ /dev/null
@@ -1,354 +0,0 @@
-/*******************************************************************************
- *
- * Module Name: utmutex - local mutex support
- *
- ******************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2005, R. Byron Moore
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions, and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * substantially similar to the "NO WARRANTY" disclaimer below
- * ("Disclaimer") and any redistribution must be conditioned upon
- * including a substantially similar Disclaimer requirement for further
- * binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
- * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <acpi/acpi.h>
-
-#define _COMPONENT ACPI_UTILITIES
-ACPI_MODULE_NAME("utmutex")
-
-/* Local prototypes */
-static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id);
-
-static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_mutex_initialize
- *
- * PARAMETERS: None.
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create the system mutex objects.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_mutex_initialize(void)
-{
- u32 i;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE("ut_mutex_initialize");
-
- /*
- * Create each of the predefined mutex objects
- */
- for (i = 0; i < NUM_MUTEX; i++) {
- status = acpi_ut_create_mutex(i);
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
-
- status = acpi_os_create_lock(&acpi_gbl_gpe_lock);
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_mutex_terminate
- *
- * PARAMETERS: None.
- *
- * RETURN: None.
- *
- * DESCRIPTION: Delete all of the system mutex objects.
- *
- ******************************************************************************/
-
-void acpi_ut_mutex_terminate(void)
-{
- u32 i;
-
- ACPI_FUNCTION_TRACE("ut_mutex_terminate");
-
- /*
- * Delete each predefined mutex object
- */
- for (i = 0; i < NUM_MUTEX; i++) {
- (void)acpi_ut_delete_mutex(i);
- }
-
- acpi_os_delete_lock(acpi_gbl_gpe_lock);
- return_VOID;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_create_mutex
- *
- * PARAMETERS: mutex_iD - ID of the mutex to be created
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a mutex object.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ut_create_mutex(acpi_mutex_handle mutex_id)
-{
- acpi_status status = AE_OK;
-
- ACPI_FUNCTION_TRACE_U32("ut_create_mutex", mutex_id);
-
- if (mutex_id > MAX_MUTEX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- if (!acpi_gbl_mutex_info[mutex_id].mutex) {
- status = acpi_os_create_semaphore(1, 1,
- &acpi_gbl_mutex_info
- [mutex_id].mutex);
- acpi_gbl_mutex_info[mutex_id].thread_id =
- ACPI_MUTEX_NOT_ACQUIRED;
- acpi_gbl_mutex_info[mutex_id].use_count = 0;
- }
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_delete_mutex
- *
- * PARAMETERS: mutex_iD - ID of the mutex to be deleted
- *
- * RETURN: Status
- *
- * DESCRIPTION: Delete a mutex object.
- *
- ******************************************************************************/
-
-static acpi_status acpi_ut_delete_mutex(acpi_mutex_handle mutex_id)
-{
- acpi_status status;
-
- ACPI_FUNCTION_TRACE_U32("ut_delete_mutex", mutex_id);
-
- if (mutex_id > MAX_MUTEX) {
- return_ACPI_STATUS(AE_BAD_PARAMETER);
- }
-
- status = acpi_os_delete_semaphore(acpi_gbl_mutex_info[mutex_id].mutex);
-
- acpi_gbl_mutex_info[mutex_id].mutex = NULL;
- acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
-
- return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_acquire_mutex
- *
- * PARAMETERS: mutex_iD - ID of the mutex to be acquired
- *
- * RETURN: Status
- *
- * DESCRIPTION: Acquire a mutex object.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_acquire_mutex(acpi_mutex_handle mutex_id)
-{
- acpi_status status;
- u32 this_thread_id;
-
- ACPI_FUNCTION_NAME("ut_acquire_mutex");
-
- if (mutex_id > MAX_MUTEX) {
- return (AE_BAD_PARAMETER);
- }
-
- this_thread_id = acpi_os_get_thread_id();
-
-#ifdef ACPI_MUTEX_DEBUG
- {
- u32 i;
- /*
- * Mutex debug code, for internal debugging only.
- *
- * Deadlock prevention. Check if this thread owns any mutexes of value
- * greater than or equal to this one. If so, the thread has violated
- * the mutex ordering rule. This indicates a coding error somewhere in
- * the ACPI subsystem code.
- */
- for (i = mutex_id; i < MAX_MUTEX; i++) {
- if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) {
- if (i == mutex_id) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Mutex [%s] already acquired by this thread [%X]\n",
- acpi_ut_get_mutex_name
- (mutex_id),
- this_thread_id));
-
- return (AE_ALREADY_ACQUIRED);
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Invalid acquire order: Thread %X owns [%s], wants [%s]\n",
- this_thread_id,
- acpi_ut_get_mutex_name(i),
- acpi_ut_get_mutex_name
- (mutex_id)));
-
- return (AE_ACQUIRE_DEADLOCK);
- }
- }
- }
-#endif
-
- ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
- "Thread %X attempting to acquire Mutex [%s]\n",
- this_thread_id, acpi_ut_get_mutex_name(mutex_id)));
-
- status = acpi_os_wait_semaphore(acpi_gbl_mutex_info[mutex_id].mutex,
- 1, ACPI_WAIT_FOREVER);
- if (ACPI_SUCCESS(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
- "Thread %X acquired Mutex [%s]\n",
- this_thread_id,
- acpi_ut_get_mutex_name(mutex_id)));
-
- acpi_gbl_mutex_info[mutex_id].use_count++;
- acpi_gbl_mutex_info[mutex_id].thread_id = this_thread_id;
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Thread %X could not acquire Mutex [%s] %s\n",
- this_thread_id,
- acpi_ut_get_mutex_name(mutex_id),
- acpi_format_exception(status)));
- }
-
- return (status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_ut_release_mutex
- *
- * PARAMETERS: mutex_iD - ID of the mutex to be released
- *
- * RETURN: Status
- *
- * DESCRIPTION: Release a mutex object.
- *
- ******************************************************************************/
-
-acpi_status acpi_ut_release_mutex(acpi_mutex_handle mutex_id)
-{
- acpi_status status;
- u32 this_thread_id;
-
- ACPI_FUNCTION_NAME("ut_release_mutex");
-
- this_thread_id = acpi_os_get_thread_id();
- ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
- "Thread %X releasing Mutex [%s]\n", this_thread_id,
- acpi_ut_get_mutex_name(mutex_id)));
-
- if (mutex_id > MAX_MUTEX) {
- return (AE_BAD_PARAMETER);
- }
-
- /*
- * Mutex must be acquired in order to release it!
- */
- if (acpi_gbl_mutex_info[mutex_id].thread_id == ACPI_MUTEX_NOT_ACQUIRED) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Mutex [%s] is not acquired, cannot release\n",
- acpi_ut_get_mutex_name(mutex_id)));
-
- return (AE_NOT_ACQUIRED);
- }
-#ifdef ACPI_MUTEX_DEBUG
- {
- u32 i;
- /*
- * Mutex debug code, for internal debugging only.
- *
- * Deadlock prevention. Check if this thread owns any mutexes of value
- * greater than this one. If so, the thread has violated the mutex
- * ordering rule. This indicates a coding error somewhere in
- * the ACPI subsystem code.
- */
- for (i = mutex_id; i < MAX_MUTEX; i++) {
- if (acpi_gbl_mutex_info[i].owner_id == this_thread_id) {
- if (i == mutex_id) {
- continue;
- }
-
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Invalid release order: owns [%s], releasing [%s]\n",
- acpi_ut_get_mutex_name(i),
- acpi_ut_get_mutex_name
- (mutex_id)));
-
- return (AE_RELEASE_DEADLOCK);
- }
- }
- }
-#endif
-
- /* Mark unlocked FIRST */
-
- acpi_gbl_mutex_info[mutex_id].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
-
- status =
- acpi_os_signal_semaphore(acpi_gbl_mutex_info[mutex_id].mutex, 1);
-
- if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Thread %X could not release Mutex [%s] %s\n",
- this_thread_id,
- acpi_ut_get_mutex_name(mutex_id),
- acpi_format_exception(status)));
- } else {
- ACPI_DEBUG_PRINT((ACPI_DB_MUTEX,
- "Thread %X released Mutex [%s]\n",
- this_thread_id,
- acpi_ut_get_mutex_name(mutex_id)));
- }
-
- return (status);
-}
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