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-rw-r--r--drivers/acpi/osl.c196
1 files changed, 148 insertions, 48 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index bdd9f37f810..56e7cedba91 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -778,54 +778,6 @@ acpi_os_delete_lock (
return_VOID;
}
-/*
- * Acquire a spinlock.
- *
- * handle is a pointer to the spinlock_t.
- * flags is *not* the result of save_flags - it is an ACPI-specific flag variable
- * that indicates whether we are at interrupt level.
- */
-void
-acpi_os_acquire_lock (
- acpi_handle handle,
- u32 flags)
-{
- ACPI_FUNCTION_TRACE ("os_acquire_lock");
-
- ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Acquiring spinlock[%p] from %s level\n", handle,
- ((flags & ACPI_NOT_ISR) ? "non-interrupt" : "interrupt")));
-
- if (flags & ACPI_NOT_ISR)
- ACPI_DISABLE_IRQS();
-
- spin_lock((spinlock_t *)handle);
-
- return_VOID;
-}
-
-
-/*
- * Release a spinlock. See above.
- */
-void
-acpi_os_release_lock (
- acpi_handle handle,
- u32 flags)
-{
- ACPI_FUNCTION_TRACE ("os_release_lock");
-
- ACPI_DEBUG_PRINT ((ACPI_DB_MUTEX, "Releasing spinlock[%p] from %s level\n", handle,
- ((flags & ACPI_NOT_ISR) ? "non-interrupt" : "interrupt")));
-
- spin_unlock((spinlock_t *)handle);
-
- if (flags & ACPI_NOT_ISR)
- ACPI_ENABLE_IRQS();
-
- return_VOID;
-}
-
-
acpi_status
acpi_os_create_semaphore(
u32 max_units,
@@ -1172,3 +1124,151 @@ unsigned int max_cstate = ACPI_PROCESSOR_MAX_POWER;
EXPORT_SYMBOL(max_cstate);
+
+/*
+ * Acquire a spinlock.
+ *
+ * handle is a pointer to the spinlock_t.
+ * flags is *not* the result of save_flags - it is an ACPI-specific flag variable
+ * that indicates whether we are at interrupt level.
+ */
+
+unsigned long
+acpi_os_acquire_lock (
+ acpi_handle handle)
+{
+ unsigned long flags;
+ spin_lock_irqsave((spinlock_t *)handle, flags);
+ return flags;
+}
+
+/*
+ * Release a spinlock. See above.
+ */
+
+void
+acpi_os_release_lock (
+ acpi_handle handle,
+ unsigned long flags)
+{
+ spin_unlock_irqrestore((spinlock_t *)handle, flags);
+}
+
+
+#ifndef ACPI_USE_LOCAL_CACHE
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_create_cache
+ *
+ * PARAMETERS: CacheName - Ascii name for the cache
+ * ObjectSize - Size of each cached object
+ * MaxDepth - Maximum depth of the cache (in objects)
+ * ReturnCache - Where the new cache object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Create a cache object
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_os_create_cache (
+ char *name,
+ u16 size,
+ u16 depth,
+ acpi_cache_t **cache)
+{
+ *cache = kmem_cache_create (name, size, 0, 0, NULL, NULL);
+ return AE_OK;
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_purge_cache
+ *
+ * PARAMETERS: Cache - Handle to cache object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Free all objects within the requested cache.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_os_purge_cache (
+ acpi_cache_t *cache)
+{
+ (void) kmem_cache_shrink(cache);
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_delete_cache
+ *
+ * PARAMETERS: Cache - Handle to cache object
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Free all objects within the requested cache and delete the
+ * cache object.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_os_delete_cache (
+ acpi_cache_t *cache)
+{
+ (void)kmem_cache_destroy(cache);
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_release_object
+ *
+ * PARAMETERS: Cache - Handle to cache object
+ * Object - The object to be released
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Release an object to the specified cache. If cache is full,
+ * the object is deleted.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_os_release_object (
+ acpi_cache_t *cache,
+ void *object)
+{
+ kmem_cache_free(cache, object);
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_os_acquire_object
+ *
+ * PARAMETERS: Cache - Handle to cache object
+ * ReturnObject - Where the object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get an object from the specified cache. If cache is empty,
+ * the object is allocated.
+ *
+ ******************************************************************************/
+
+void *
+acpi_os_acquire_object (
+ acpi_cache_t *cache)
+{
+ void *object = kmem_cache_alloc(cache, GFP_KERNEL);
+ WARN_ON(!object);
+ return object;
+}
+
+#endif
+