[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/drivers/acpi/acpica/utxfmutex.c b/src/kernel/linux/v4.19/drivers/acpi/acpica/utxfmutex.c
new file mode 100644
index 0000000..be24db2
--- /dev/null
+++ b/src/kernel/linux/v4.19/drivers/acpi/acpica/utxfmutex.c
@@ -0,0 +1,154 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/*******************************************************************************
+ *
+ * Module Name: utxfmutex - external AML mutex access functions
+ *
+ ******************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utxfmutex")
+
+/* Local prototypes */
+static acpi_status
+acpi_ut_get_mutex_object(acpi_handle handle,
+ acpi_string pathname,
+ union acpi_operand_object **ret_obj);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ut_get_mutex_object
+ *
+ * PARAMETERS: handle - Mutex or prefix handle (optional)
+ * pathname - Mutex pathname (optional)
+ * ret_obj - Where the mutex object is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get an AML mutex object. The mutex node is pointed to by
+ * Handle:Pathname. Either Handle or Pathname can be NULL, but
+ * not both.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_get_mutex_object(acpi_handle handle,
+ acpi_string pathname,
+ union acpi_operand_object **ret_obj)
+{
+ struct acpi_namespace_node *mutex_node;
+ union acpi_operand_object *mutex_obj;
+ acpi_status status;
+
+ /* Parameter validation */
+
+ if (!ret_obj || (!handle && !pathname)) {
+ return (AE_BAD_PARAMETER);
+ }
+
+ /* Get a the namespace node for the mutex */
+
+ mutex_node = handle;
+ if (pathname != NULL) {
+ status =
+ acpi_get_handle(handle, pathname,
+ ACPI_CAST_PTR(acpi_handle, &mutex_node));
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+ }
+
+ /* Ensure that we actually have a Mutex object */
+
+ if (!mutex_node || (mutex_node->type != ACPI_TYPE_MUTEX)) {
+ return (AE_TYPE);
+ }
+
+ /* Get the low-level mutex object */
+
+ mutex_obj = acpi_ns_get_attached_object(mutex_node);
+ if (!mutex_obj) {
+ return (AE_NULL_OBJECT);
+ }
+
+ *ret_obj = mutex_obj;
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_acquire_mutex
+ *
+ * PARAMETERS: handle - Mutex or prefix handle (optional)
+ * pathname - Mutex pathname (optional)
+ * timeout - Max time to wait for the lock (millisec)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Acquire an AML mutex. This is a device driver interface to
+ * AML mutex objects, and allows for transaction locking between
+ * drivers and AML code. The mutex node is pointed to by
+ * Handle:Pathname. Either Handle or Pathname can be NULL, but
+ * not both.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_acquire_mutex(acpi_handle handle, acpi_string pathname, u16 timeout)
+{
+ acpi_status status;
+ union acpi_operand_object *mutex_obj;
+
+ /* Get the low-level mutex associated with Handle:Pathname */
+
+ status = acpi_ut_get_mutex_object(handle, pathname, &mutex_obj);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Acquire the OS mutex */
+
+ status = acpi_os_acquire_mutex(mutex_obj->mutex.os_mutex, timeout);
+ return (status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_acquire_mutex)
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_release_mutex
+ *
+ * PARAMETERS: handle - Mutex or prefix handle (optional)
+ * pathname - Mutex pathname (optional)
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Release an AML mutex. This is a device driver interface to
+ * AML mutex objects, and allows for transaction locking between
+ * drivers and AML code. The mutex node is pointed to by
+ * Handle:Pathname. Either Handle or Pathname can be NULL, but
+ * not both.
+ *
+ ******************************************************************************/
+acpi_status acpi_release_mutex(acpi_handle handle, acpi_string pathname)
+{
+ acpi_status status;
+ union acpi_operand_object *mutex_obj;
+
+ /* Get the low-level mutex associated with Handle:Pathname */
+
+ status = acpi_ut_get_mutex_object(handle, pathname, &mutex_obj);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ /* Release the OS mutex */
+
+ acpi_os_release_mutex(mutex_obj->mutex.os_mutex);
+ return (AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_release_mutex)