ACPICA: Split file: tbxface.c -> tbxfload.c

Split out the table load functions in preparation for addition
of new interfaces.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

3 files changed, 213 insertions, 164 deletions

diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index fa9a7d5afeb8..0a1b3435f920 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -134,6 +134,7 @@ acpi-y +=		\
         tbinstal.o      \
         tbutils.o       \
         tbxface.o       \
+        tbxfload.o      \
         tbxfroot.o
 
 acpi-y +=               \
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index abcc6412c244..472a91ccde95 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -1,7 +1,6 @@
 /******************************************************************************
  *
- * Module Name: tbxface - Public interfaces to the ACPI subsystem
- *                         ACPI table oriented interfaces
+ * Module Name: tbxface - ACPI table oriented external interfaces
  *
  *****************************************************************************/
 
@@ -51,11 +50,6 @@
 #define _COMPONENT          ACPI_TABLES
 ACPI_MODULE_NAME("tbxface")
 
-/* Local prototypes */
-static acpi_status acpi_tb_load_namespace(void);
-
-static int no_auto_ssdt;
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_allocate_root_table
@@ -69,7 +63,6 @@ static int no_auto_ssdt;
  *              acpi_initialize_tables.
  *
  ******************************************************************************/
-
 acpi_status acpi_allocate_root_table(u32 initial_table_count)
 {
 
@@ -502,150 +495,6 @@ acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table)
 
 ACPI_EXPORT_SYMBOL(acpi_get_table_by_index)
 
-/*******************************************************************************
- *
- * FUNCTION:    acpi_tb_load_namespace
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in
- *              the RSDT/XSDT.
- *
- ******************************************************************************/
-static acpi_status acpi_tb_load_namespace(void)
-{
-        acpi_status status;
-        u32 i;
-        struct acpi_table_header *new_dsdt;
-
-        ACPI_FUNCTION_TRACE(tb_load_namespace);
-
-        (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-
-        /*
-         * Load the namespace. The DSDT is required, but any SSDT and
-         * PSDT tables are optional. Verify the DSDT.
-         */
-        if (!acpi_gbl_root_table_list.current_table_count ||
-            !ACPI_COMPARE_NAME(&
-                               (acpi_gbl_root_table_list.
-                                tables[ACPI_TABLE_INDEX_DSDT].signature),
-                               ACPI_SIG_DSDT)
-            ||
-            ACPI_FAILURE(acpi_tb_verify_table
-                         (&acpi_gbl_root_table_list.
-                          tables[ACPI_TABLE_INDEX_DSDT]))) {
-                status = AE_NO_ACPI_TABLES;
-                goto unlock_and_exit;
-        }
-
-        /*
-         * Save the DSDT pointer for simple access. This is the mapped memory
-         * address. We must take care here because the address of the .Tables
-         * array can change dynamically as tables are loaded at run-time. Note:
-         * .Pointer field is not validated until after call to acpi_tb_verify_table.
-         */
-        acpi_gbl_DSDT =
-            acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer;
-
-        /*
-         * Optionally copy the entire DSDT to local memory (instead of simply
-         * mapping it.) There are some BIOSs that corrupt or replace the original
-         * DSDT, creating the need for this option. Default is FALSE, do not copy
-         * the DSDT.
-         */
-        if (acpi_gbl_copy_dsdt_locally) {
-                new_dsdt = acpi_tb_copy_dsdt(ACPI_TABLE_INDEX_DSDT);
-                if (new_dsdt) {
-                        acpi_gbl_DSDT = new_dsdt;
-                }
-        }
-
-        /*
-         * Save the original DSDT header for detection of table corruption
-         * and/or replacement of the DSDT from outside the OS.
-         */
-        ACPI_MEMCPY(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT,
-                    sizeof(struct acpi_table_header));
-
-        (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-
-        /* Load and parse tables */
-
-        status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node);
-        if (ACPI_FAILURE(status)) {
-                return_ACPI_STATUS(status);
-        }
-
-        /* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */
-
-        (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-        for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
-                if ((!ACPI_COMPARE_NAME
-                     (&(acpi_gbl_root_table_list.tables[i].signature),
-                      ACPI_SIG_SSDT)
-                     &&
-                     !ACPI_COMPARE_NAME(&
-                                        (acpi_gbl_root_table_list.tables[i].
-                                         signature), ACPI_SIG_PSDT))
-                    ||
-                    ACPI_FAILURE(acpi_tb_verify_table
-                                 (&acpi_gbl_root_table_list.tables[i]))) {
-                        continue;
-                }
-
-                if (no_auto_ssdt) {
-                        printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n");
-                        continue;
-                }
-
-                /* Ignore errors while loading tables, get as many as possible */
-
-                (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-                (void)acpi_ns_load_table(i, acpi_gbl_root_node);
-                (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
-        }
-
-        ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
-
-      unlock_and_exit:
-        (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
-        return_ACPI_STATUS(status);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_load_tables
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT
- *
- ******************************************************************************/
-
-acpi_status acpi_load_tables(void)
-{
-        acpi_status status;
-
-        ACPI_FUNCTION_TRACE(acpi_load_tables);
-
-        /* Load the namespace from the tables */
-
-        status = acpi_tb_load_namespace();
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status,
-                                "While loading namespace from ACPI tables"));
-        }
-
-        return_ACPI_STATUS(status);
-}
-
-ACPI_EXPORT_SYMBOL(acpi_load_tables)
-
 
 /*******************************************************************************
  *
@@ -734,15 +583,3 @@ acpi_status acpi_remove_table_handler(acpi_tbl_handler handler)
 }
 
 ACPI_EXPORT_SYMBOL(acpi_remove_table_handler)
-
-
-static int __init acpi_no_auto_ssdt_setup(char *s) {
-
-        printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n");
-
-        no_auto_ssdt = 1;
-
-        return 1;
-}
-
-__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
new file mode 100644
index 000000000000..54a01ae94f8b
--- /dev/null
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -0,0 +1,211 @@
+/******************************************************************************
+ *
+ * Module Name: tbxfload - Table load/unload external interfaces
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, 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 <linux/export.h>
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "actables.h"
+
+#define _COMPONENT          ACPI_TABLES
+ACPI_MODULE_NAME("tbxfload")
+
+/* Local prototypes */
+static acpi_status acpi_tb_load_namespace(void);
+
+static int no_auto_ssdt;
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_load_tables
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Load the ACPI tables from the RSDT/XSDT
+ *
+ ******************************************************************************/
+
+acpi_status acpi_load_tables(void)
+{
+        acpi_status status;
+
+        ACPI_FUNCTION_TRACE(acpi_load_tables);
+
+        /* Load the namespace from the tables */
+
+        status = acpi_tb_load_namespace();
+        if (ACPI_FAILURE(status)) {
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "While loading namespace from ACPI tables"));
+        }
+
+        return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_load_tables)
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_tb_load_namespace
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Load the namespace from the DSDT and all SSDTs/PSDTs found in
+ *              the RSDT/XSDT.
+ *
+ ******************************************************************************/
+static acpi_status acpi_tb_load_namespace(void)
+{
+        acpi_status status;
+        u32 i;
+        struct acpi_table_header *new_dsdt;
+
+        ACPI_FUNCTION_TRACE(tb_load_namespace);
+
+        (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+
+        /*
+         * Load the namespace. The DSDT is required, but any SSDT and
+         * PSDT tables are optional. Verify the DSDT.
+         */
+        if (!acpi_gbl_root_table_list.current_table_count ||
+            !ACPI_COMPARE_NAME(&
+                               (acpi_gbl_root_table_list.
+                                tables[ACPI_TABLE_INDEX_DSDT].signature),
+                               ACPI_SIG_DSDT)
+            ||
+            ACPI_FAILURE(acpi_tb_verify_table
+                         (&acpi_gbl_root_table_list.
+                          tables[ACPI_TABLE_INDEX_DSDT]))) {
+                status = AE_NO_ACPI_TABLES;
+                goto unlock_and_exit;
+        }
+
+        /*
+         * Save the DSDT pointer for simple access. This is the mapped memory
+         * address. We must take care here because the address of the .Tables
+         * array can change dynamically as tables are loaded at run-time. Note:
+         * .Pointer field is not validated until after call to acpi_tb_verify_table.
+         */
+        acpi_gbl_DSDT =
+            acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer;
+
+        /*
+         * Optionally copy the entire DSDT to local memory (instead of simply
+         * mapping it.) There are some BIOSs that corrupt or replace the original
+         * DSDT, creating the need for this option. Default is FALSE, do not copy
+         * the DSDT.
+         */
+        if (acpi_gbl_copy_dsdt_locally) {
+                new_dsdt = acpi_tb_copy_dsdt(ACPI_TABLE_INDEX_DSDT);
+                if (new_dsdt) {
+                        acpi_gbl_DSDT = new_dsdt;
+                }
+        }
+
+        /*
+         * Save the original DSDT header for detection of table corruption
+         * and/or replacement of the DSDT from outside the OS.
+         */
+        ACPI_MEMCPY(&acpi_gbl_original_dsdt_header, acpi_gbl_DSDT,
+                    sizeof(struct acpi_table_header));
+
+        (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+
+        /* Load and parse tables */
+
+        status = acpi_ns_load_table(ACPI_TABLE_INDEX_DSDT, acpi_gbl_root_node);
+        if (ACPI_FAILURE(status)) {
+                return_ACPI_STATUS(status);
+        }
+
+        /* Load any SSDT or PSDT tables. Note: Loop leaves tables locked */
+
+        (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+        for (i = 0; i < acpi_gbl_root_table_list.current_table_count; ++i) {
+                if ((!ACPI_COMPARE_NAME
+                     (&(acpi_gbl_root_table_list.tables[i].signature),
+                      ACPI_SIG_SSDT)
+                     &&
+                     !ACPI_COMPARE_NAME(&
+                                        (acpi_gbl_root_table_list.tables[i].
+                                         signature), ACPI_SIG_PSDT))
+                    ||
+                    ACPI_FAILURE(acpi_tb_verify_table
+                                 (&acpi_gbl_root_table_list.tables[i]))) {
+                        continue;
+                }
+
+                if (no_auto_ssdt) {
+                        printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n");
+                        continue;
+                }
+
+                /* Ignore errors while loading tables, get as many as possible */
+
+                (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+                (void)acpi_ns_load_table(i, acpi_gbl_root_node);
+                (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES);
+        }
+
+        ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n"));
+
+      unlock_and_exit:
+        (void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
+        return_ACPI_STATUS(status);
+}
+
+static int __init acpi_no_auto_ssdt_setup(char *s) {
+
+        printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n");
+
+        no_auto_ssdt = 1;
+
+        return 1;
+}
+
+__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);