Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/acpi/tables/tbget.c b/drivers/acpi/tables/tbget.c
new file mode 100644
index 0000000..896f3dd
--- /dev/null
+++ b/drivers/acpi/tables/tbget.c
@@ -0,0 +1,493 @@
+/******************************************************************************
+ *
+ * Module Name: tbget - ACPI Table get* routines
+ *
+ *****************************************************************************/
+
+/*
+ * 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>
+#include <acpi/actables.h>
+
+
+#define _COMPONENT ACPI_TABLES
+ ACPI_MODULE_NAME ("tbget")
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_table
+ *
+ * PARAMETERS: Address - Address of table to retrieve. Can be
+ * Logical or Physical
+ * table_info - Where table info is returned
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Get entire table of unknown size.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_get_table (
+ struct acpi_pointer *address,
+ struct acpi_table_desc *table_info)
+{
+ acpi_status status;
+ struct acpi_table_header header;
+
+
+ ACPI_FUNCTION_TRACE ("tb_get_table");
+
+
+ /*
+ * Get the header in order to get signature and table size
+ */
+ status = acpi_tb_get_table_header (address, &header);
+ if (ACPI_FAILURE (status)) {
+ return_ACPI_STATUS (status);
+ }
+
+ /* Get the entire table */
+
+ status = acpi_tb_get_table_body (address, &header, table_info);
+ if (ACPI_FAILURE (status)) {
+ ACPI_REPORT_ERROR (("Could not get ACPI table (size %X), %s\n",
+ header.length, acpi_format_exception (status)));
+ return_ACPI_STATUS (status);
+ }
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_table_header
+ *
+ * PARAMETERS: Address - Address of table to retrieve. Can be
+ * Logical or Physical
+ * return_header - Where the table header is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get an ACPI table header. Works in both physical or virtual
+ * addressing mode. Works with both physical or logical pointers.
+ * Table is either copied or mapped, depending on the pointer
+ * type and mode of the processor.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_get_table_header (
+ struct acpi_pointer *address,
+ struct acpi_table_header *return_header)
+{
+ acpi_status status = AE_OK;
+ struct acpi_table_header *header = NULL;
+
+
+ ACPI_FUNCTION_TRACE ("tb_get_table_header");
+
+
+ /*
+ * Flags contains the current processor mode (Virtual or Physical addressing)
+ * The pointer_type is either Logical or Physical
+ */
+ switch (address->pointer_type) {
+ case ACPI_PHYSMODE_PHYSPTR:
+ case ACPI_LOGMODE_LOGPTR:
+
+ /* Pointer matches processor mode, copy the header */
+
+ ACPI_MEMCPY (return_header, address->pointer.logical, sizeof (struct acpi_table_header));
+ break;
+
+
+ case ACPI_LOGMODE_PHYSPTR:
+
+ /* Create a logical address for the physical pointer*/
+
+ status = acpi_os_map_memory (address->pointer.physical, sizeof (struct acpi_table_header),
+ (void *) &header);
+ if (ACPI_FAILURE (status)) {
+ ACPI_REPORT_ERROR (("Could not map memory at %8.8X%8.8X for length %X\n",
+ ACPI_FORMAT_UINT64 (address->pointer.physical),
+ sizeof (struct acpi_table_header)));
+ return_ACPI_STATUS (status);
+ }
+
+ /* Copy header and delete mapping */
+
+ ACPI_MEMCPY (return_header, header, sizeof (struct acpi_table_header));
+ acpi_os_unmap_memory (header, sizeof (struct acpi_table_header));
+ break;
+
+
+ default:
+
+ ACPI_REPORT_ERROR (("Invalid address flags %X\n",
+ address->pointer_type));
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_TABLES, "Table Signature: [%4.4s]\n",
+ return_header->signature));
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_table_body
+ *
+ * PARAMETERS: Address - Address of table to retrieve. Can be
+ * Logical or Physical
+ * Header - Header of the table to retrieve
+ * table_info - Where the table info is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get an entire ACPI table with support to allow the host OS to
+ * replace the table with a newer version (table override.)
+ * Works in both physical or virtual
+ * addressing mode. Works with both physical or logical pointers.
+ * Table is either copied or mapped, depending on the pointer
+ * type and mode of the processor.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_get_table_body (
+ struct acpi_pointer *address,
+ struct acpi_table_header *header,
+ struct acpi_table_desc *table_info)
+{
+ acpi_status status;
+
+
+ ACPI_FUNCTION_TRACE ("tb_get_table_body");
+
+
+ if (!table_info || !address) {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Attempt table override.
+ */
+ status = acpi_tb_table_override (header, table_info);
+ if (ACPI_SUCCESS (status)) {
+ /* Table was overridden by the host OS */
+
+ return_ACPI_STATUS (status);
+ }
+
+ /* No override, get the original table */
+
+ status = acpi_tb_get_this_table (address, header, table_info);
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_table_override
+ *
+ * PARAMETERS: Header - Pointer to table header
+ * table_info - Return info if table is overridden
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Attempts override of current table with a new one if provided
+ * by the host OS.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_table_override (
+ struct acpi_table_header *header,
+ struct acpi_table_desc *table_info)
+{
+ struct acpi_table_header *new_table;
+ acpi_status status;
+ struct acpi_pointer address;
+
+
+ ACPI_FUNCTION_TRACE ("tb_table_override");
+
+
+ /*
+ * The OSL will examine the header and decide whether to override this
+ * table. If it decides to override, a table will be returned in new_table,
+ * which we will then copy.
+ */
+ status = acpi_os_table_override (header, &new_table);
+ if (ACPI_FAILURE (status)) {
+ /* Some severe error from the OSL, but we basically ignore it */
+
+ ACPI_REPORT_ERROR (("Could not override ACPI table, %s\n",
+ acpi_format_exception (status)));
+ return_ACPI_STATUS (status);
+ }
+
+ if (!new_table) {
+ /* No table override */
+
+ return_ACPI_STATUS (AE_NO_ACPI_TABLES);
+ }
+
+ /*
+ * We have a new table to override the old one. Get a copy of
+ * the new one. We know that the new table has a logical pointer.
+ */
+ address.pointer_type = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING;
+ address.pointer.logical = new_table;
+
+ status = acpi_tb_get_this_table (&address, new_table, table_info);
+ if (ACPI_FAILURE (status)) {
+ ACPI_REPORT_ERROR (("Could not copy override ACPI table, %s\n",
+ acpi_format_exception (status)));
+ return_ACPI_STATUS (status);
+ }
+
+ /* Copy the table info */
+
+ ACPI_REPORT_INFO (("Table [%4.4s] replaced by host OS\n",
+ table_info->pointer->signature));
+
+ return_ACPI_STATUS (AE_OK);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_this_table
+ *
+ * PARAMETERS: Address - Address of table to retrieve. Can be
+ * Logical or Physical
+ * Header - Header of the table to retrieve
+ * table_info - Where the table info is returned
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Get an entire ACPI table. Works in both physical or virtual
+ * addressing mode. Works with both physical or logical pointers.
+ * Table is either copied or mapped, depending on the pointer
+ * type and mode of the processor.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_get_this_table (
+ struct acpi_pointer *address,
+ struct acpi_table_header *header,
+ struct acpi_table_desc *table_info)
+{
+ struct acpi_table_header *full_table = NULL;
+ u8 allocation;
+ acpi_status status = AE_OK;
+
+
+ ACPI_FUNCTION_TRACE ("tb_get_this_table");
+
+
+ /*
+ * Flags contains the current processor mode (Virtual or Physical addressing)
+ * The pointer_type is either Logical or Physical
+ */
+ switch (address->pointer_type) {
+ case ACPI_PHYSMODE_PHYSPTR:
+ case ACPI_LOGMODE_LOGPTR:
+
+ /* Pointer matches processor mode, copy the table to a new buffer */
+
+ full_table = ACPI_MEM_ALLOCATE (header->length);
+ if (!full_table) {
+ ACPI_REPORT_ERROR (("Could not allocate table memory for [%4.4s] length %X\n",
+ header->signature, header->length));
+ return_ACPI_STATUS (AE_NO_MEMORY);
+ }
+
+ /* Copy the entire table (including header) to the local buffer */
+
+ ACPI_MEMCPY (full_table, address->pointer.logical, header->length);
+
+ /* Save allocation type */
+
+ allocation = ACPI_MEM_ALLOCATED;
+ break;
+
+
+ case ACPI_LOGMODE_PHYSPTR:
+
+ /*
+ * Just map the table's physical memory
+ * into our address space.
+ */
+ status = acpi_os_map_memory (address->pointer.physical, (acpi_size) header->length,
+ (void *) &full_table);
+ if (ACPI_FAILURE (status)) {
+ ACPI_REPORT_ERROR (("Could not map memory for table [%4.4s] at %8.8X%8.8X for length %X\n",
+ header->signature,
+ ACPI_FORMAT_UINT64 (address->pointer.physical), header->length));
+ return (status);
+ }
+
+ /* Save allocation type */
+
+ allocation = ACPI_MEM_MAPPED;
+ break;
+
+
+ default:
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Invalid address flags %X\n",
+ address->pointer_type));
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * Validate checksum for _most_ tables,
+ * even the ones whose signature we don't recognize
+ */
+ if (table_info->type != ACPI_TABLE_FACS) {
+ status = acpi_tb_verify_table_checksum (full_table);
+
+#if (!ACPI_CHECKSUM_ABORT)
+ if (ACPI_FAILURE (status)) {
+ /* Ignore the error if configuration says so */
+
+ status = AE_OK;
+ }
+#endif
+ }
+
+ /* Return values */
+
+ table_info->pointer = full_table;
+ table_info->length = (acpi_size) header->length;
+ table_info->allocation = allocation;
+
+ ACPI_DEBUG_PRINT ((ACPI_DB_INFO,
+ "Found table [%4.4s] at %8.8X%8.8X, mapped/copied to %p\n",
+ full_table->signature,
+ ACPI_FORMAT_UINT64 (address->pointer.physical), full_table));
+
+ return_ACPI_STATUS (status);
+}
+
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_get_table_ptr
+ *
+ * PARAMETERS: table_type - one of the defined table types
+ * Instance - Which table of this type
+ * table_ptr_loc - pointer to location to place the pointer for
+ * return
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: This function is called to get the pointer to an ACPI table.
+ *
+ ******************************************************************************/
+
+acpi_status
+acpi_tb_get_table_ptr (
+ acpi_table_type table_type,
+ u32 instance,
+ struct acpi_table_header **table_ptr_loc)
+{
+ struct acpi_table_desc *table_desc;
+ u32 i;
+
+
+ ACPI_FUNCTION_TRACE ("tb_get_table_ptr");
+
+
+ if (!acpi_gbl_DSDT) {
+ return_ACPI_STATUS (AE_NO_ACPI_TABLES);
+ }
+
+ if (table_type > ACPI_TABLE_MAX) {
+ return_ACPI_STATUS (AE_BAD_PARAMETER);
+ }
+
+ /*
+ * For all table types (Single/Multiple), the first
+ * instance is always in the list head.
+ */
+ if (instance == 1) {
+ /* Get the first */
+
+ *table_ptr_loc = NULL;
+ if (acpi_gbl_table_lists[table_type].next) {
+ *table_ptr_loc = acpi_gbl_table_lists[table_type].next->pointer;
+ }
+ return_ACPI_STATUS (AE_OK);
+ }
+
+ /*
+ * Check for instance out of range
+ */
+ if (instance > acpi_gbl_table_lists[table_type].count) {
+ return_ACPI_STATUS (AE_NOT_EXIST);
+ }
+
+ /* Walk the list to get the desired table
+ * Since the if (Instance == 1) check above checked for the
+ * first table, setting table_desc equal to the .Next member
+ * is actually pointing to the second table. Therefore, we
+ * need to walk from the 2nd table until we reach the Instance
+ * that the user is looking for and return its table pointer.
+ */
+ table_desc = acpi_gbl_table_lists[table_type].next;
+ for (i = 2; i < instance; i++) {
+ table_desc = table_desc->next;
+ }
+
+ /* We are now pointing to the requested table's descriptor */
+
+ *table_ptr_loc = table_desc->pointer;
+
+ return_ACPI_STATUS (AE_OK);
+}
+