These changes are the raw update to linux-4.4.6-rt14. Kernel sources
[kvmfornfv.git] / kernel / drivers / acpi / acpica / dbfileio.c
diff --git a/kernel/drivers/acpi/acpica/dbfileio.c b/kernel/drivers/acpi/acpica/dbfileio.c
new file mode 100644 (file)
index 0000000..d0e6b20
--- /dev/null
@@ -0,0 +1,256 @@
+/*******************************************************************************
+ *
+ * Module Name: dbfileio - Debugger file I/O commands. These can't usually
+ *              be used when running the debugger in Ring 0 (Kernel mode)
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, Intel Corp.
+ * 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>
+#include "accommon.h"
+#include "acdebug.h"
+#include "actables.h"
+
+#define _COMPONENT          ACPI_CA_DEBUGGER
+ACPI_MODULE_NAME("dbfileio")
+
+#ifdef ACPI_DEBUGGER
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_close_debug_file
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: If open, close the current debug output file
+ *
+ ******************************************************************************/
+void acpi_db_close_debug_file(void)
+{
+
+#ifdef ACPI_APPLICATION
+
+       if (acpi_gbl_debug_file) {
+               fclose(acpi_gbl_debug_file);
+               acpi_gbl_debug_file = NULL;
+               acpi_gbl_db_output_to_file = FALSE;
+               acpi_os_printf("Debug output file %s closed\n",
+                              acpi_gbl_db_debug_filename);
+       }
+#endif
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_open_debug_file
+ *
+ * PARAMETERS:  name                - Filename to open
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Open a file where debug output will be directed.
+ *
+ ******************************************************************************/
+
+void acpi_db_open_debug_file(char *name)
+{
+
+#ifdef ACPI_APPLICATION
+
+       acpi_db_close_debug_file();
+       acpi_gbl_debug_file = fopen(name, "w+");
+       if (!acpi_gbl_debug_file) {
+               acpi_os_printf("Could not open debug file %s\n", name);
+               return;
+       }
+
+       acpi_os_printf("Debug output file %s opened\n", name);
+       strncpy(acpi_gbl_db_debug_filename, name,
+               sizeof(acpi_gbl_db_debug_filename));
+       acpi_gbl_db_output_to_file = TRUE;
+
+#endif
+}
+#endif
+
+#ifdef ACPI_APPLICATION
+#include "acapps.h"
+
+/*******************************************************************************
+ *
+ * FUNCTION:    ae_local_load_table
+ *
+ * PARAMETERS:  table           - pointer to a buffer containing the entire
+ *                                table to be loaded
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: This function is called to load a table from the caller's
+ *              buffer. The buffer must contain an entire ACPI Table including
+ *              a valid header. The header fields will be verified, and if it
+ *              is determined that the table is invalid, the call will fail.
+ *
+ ******************************************************************************/
+
+static acpi_status ae_local_load_table(struct acpi_table_header *table)
+{
+       acpi_status status = AE_OK;
+
+       ACPI_FUNCTION_TRACE(ae_local_load_table);
+
+#if 0
+/*    struct acpi_table_desc          table_info; */
+
+       if (!table) {
+               return_ACPI_STATUS(AE_BAD_PARAMETER);
+       }
+
+       table_info.pointer = table;
+       status = acpi_tb_recognize_table(&table_info, ACPI_TABLE_ALL);
+       if (ACPI_FAILURE(status)) {
+               return_ACPI_STATUS(status);
+       }
+
+       /* Install the new table into the local data structures */
+
+       status = acpi_tb_init_table_descriptor(&table_info);
+       if (ACPI_FAILURE(status)) {
+               if (status == AE_ALREADY_EXISTS) {
+
+                       /* Table already exists, no error */
+
+                       status = AE_OK;
+               }
+
+               /* Free table allocated by acpi_tb_get_table */
+
+               acpi_tb_delete_single_table(&table_info);
+               return_ACPI_STATUS(status);
+       }
+#if (!defined (ACPI_NO_METHOD_EXECUTION) && !defined (ACPI_CONSTANT_EVAL_ONLY))
+
+       status =
+           acpi_ns_load_table(table_info.installed_desc, acpi_gbl_root_node);
+       if (ACPI_FAILURE(status)) {
+
+               /* Uninstall table and free the buffer */
+
+               acpi_tb_delete_tables_by_type(ACPI_TABLE_ID_DSDT);
+               return_ACPI_STATUS(status);
+       }
+#endif
+#endif
+
+       return_ACPI_STATUS(status);
+}
+#endif
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_db_get_table_from_file
+ *
+ * PARAMETERS:  filename        - File where table is located
+ *              return_table    - Where a pointer to the table is returned
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Load an ACPI table from a file
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_db_get_table_from_file(char *filename,
+                           struct acpi_table_header **return_table,
+                           u8 must_be_aml_file)
+{
+#ifdef ACPI_APPLICATION
+       acpi_status status;
+       struct acpi_table_header *table;
+       u8 is_aml_table = TRUE;
+
+       status = acpi_ut_read_table_from_file(filename, &table);
+       if (ACPI_FAILURE(status)) {
+               return (status);
+       }
+
+       if (must_be_aml_file) {
+               is_aml_table = acpi_ut_is_aml_table(table);
+               if (!is_aml_table) {
+                       ACPI_EXCEPTION((AE_INFO, AE_OK,
+                                       "Input for -e is not an AML table: "
+                                       "\"%4.4s\" (must be DSDT/SSDT)",
+                                       table->signature));
+                       return (AE_TYPE);
+               }
+       }
+
+       if (is_aml_table) {
+
+               /* Attempt to recognize and install the table */
+
+               status = ae_local_load_table(table);
+               if (ACPI_FAILURE(status)) {
+                       if (status == AE_ALREADY_EXISTS) {
+                               acpi_os_printf
+                                   ("Table %4.4s is already installed\n",
+                                    table->signature);
+                       } else {
+                               acpi_os_printf("Could not install table, %s\n",
+                                              acpi_format_exception(status));
+                       }
+
+                       return (status);
+               }
+
+               acpi_tb_print_table_header(0, table);
+
+               fprintf(stderr,
+                       "Acpi table [%4.4s] successfully installed and loaded\n",
+                       table->signature);
+       }
+
+       acpi_gbl_acpi_hardware_present = FALSE;
+       if (return_table) {
+               *return_table = table;
+       }
+
+#endif                         /* ACPI_APPLICATION */
+       return (AE_OK);
+}