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authorLen Brown <len.brown@intel.com>2009-01-09 06:13:17 +0100
committerLen Brown <len.brown@intel.com>2009-01-09 09:30:47 +0100
commit95b482a8d31116f3f5c2a5089569393234d06385 (patch)
treef32aec8673a285a9d188948be97af3034ee06e93 /drivers/acpi/tables/tbutils.c
parentACPICA: delete utcache.c (diff)
downloadlinux-95b482a8d31116f3f5c2a5089569393234d06385.tar.xz
linux-95b482a8d31116f3f5c2a5089569393234d06385.zip
ACPICA: create acpica/ directory
also, delete sleep/ and delete ACPI_CFLAGS from Makefile Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/tables/tbutils.c')
-rw-r--r--drivers/acpi/tables/tbutils.c582
1 files changed, 0 insertions, 582 deletions
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
deleted file mode 100644
index 4eb7189974ca..000000000000
--- a/drivers/acpi/tables/tbutils.c
+++ /dev/null
@@ -1,582 +0,0 @@
-/******************************************************************************
- *
- * Module Name: tbutils - table utilities
- *
- *****************************************************************************/
-
-/*
- * Copyright (C) 2000 - 2008, 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 <acpi/accommon.h>
-#include <acpi/actables.h>
-
-#define _COMPONENT ACPI_TABLES
-ACPI_MODULE_NAME("tbutils")
-
-/* Local prototypes */
-static acpi_physical_address
-acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size);
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_check_xsdt
- *
- * PARAMETERS: address - Pointer to the XSDT
- *
- * RETURN: status
- * AE_OK - XSDT is okay
- * AE_NO_MEMORY - can't map XSDT
- * AE_INVALID_TABLE_LENGTH - invalid table length
- * AE_NULL_ENTRY - XSDT has NULL entry
- *
- * DESCRIPTION: validate XSDT
-******************************************************************************/
-
-static acpi_status
-acpi_tb_check_xsdt(acpi_physical_address address)
-{
- struct acpi_table_header *table;
- u32 length;
- u64 xsdt_entry_address;
- u8 *table_entry;
- u32 table_count;
- int i;
-
- table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
- if (!table)
- return AE_NO_MEMORY;
-
- length = table->length;
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
- if (length < sizeof(struct acpi_table_header))
- return AE_INVALID_TABLE_LENGTH;
-
- table = acpi_os_map_memory(address, length);
- if (!table)
- return AE_NO_MEMORY;
-
- /* Calculate the number of tables described in XSDT */
- table_count =
- (u32) ((table->length -
- sizeof(struct acpi_table_header)) / sizeof(u64));
- table_entry =
- ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
- for (i = 0; i < table_count; i++) {
- ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry);
- if (!xsdt_entry_address) {
- /* XSDT has NULL entry */
- break;
- }
- table_entry += sizeof(u64);
- }
- acpi_os_unmap_memory(table, length);
-
- if (i < table_count)
- return AE_NULL_ENTRY;
- else
- return AE_OK;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_initialize_facs
- *
- * PARAMETERS: None
- *
- * RETURN: Status
- *
- * DESCRIPTION: Create a permanent mapping for the FADT and save it in a global
- * for accessing the Global Lock and Firmware Waking Vector
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_initialize_facs(void)
-{
- acpi_status status;
-
- status = acpi_get_table_by_index(ACPI_TABLE_INDEX_FACS,
- ACPI_CAST_INDIRECT_PTR(struct
- acpi_table_header,
- &acpi_gbl_FACS));
- return status;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_tables_loaded
- *
- * PARAMETERS: None
- *
- * RETURN: TRUE if required ACPI tables are loaded
- *
- * DESCRIPTION: Determine if the minimum required ACPI tables are present
- * (FADT, FACS, DSDT)
- *
- ******************************************************************************/
-
-u8 acpi_tb_tables_loaded(void)
-{
-
- if (acpi_gbl_root_table_list.count >= 3) {
- return (TRUE);
- }
-
- return (FALSE);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_print_table_header
- *
- * PARAMETERS: Address - Table physical address
- * Header - Table header
- *
- * RETURN: None
- *
- * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
- *
- ******************************************************************************/
-
-void
-acpi_tb_print_table_header(acpi_physical_address address,
- struct acpi_table_header *header)
-{
-
- if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) {
-
- /* FACS only has signature and length fields of common table header */
-
- ACPI_INFO((AE_INFO, "%4.4s %08lX, %04X",
- header->signature, (unsigned long)address,
- header->length));
- } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) {
-
- /* RSDP has no common fields */
-
- ACPI_INFO((AE_INFO, "RSDP %08lX, %04X (r%d %6.6s)",
- (unsigned long)address,
- (ACPI_CAST_PTR(struct acpi_table_rsdp, header)->
- revision >
- 0) ? ACPI_CAST_PTR(struct acpi_table_rsdp,
- header)->length : 20,
- ACPI_CAST_PTR(struct acpi_table_rsdp,
- header)->revision,
- ACPI_CAST_PTR(struct acpi_table_rsdp,
- header)->oem_id));
- } else {
- /* Standard ACPI table with full common header */
-
- ACPI_INFO((AE_INFO,
- "%4.4s %08lX, %04X (r%d %6.6s %8.8s %8X %4.4s %8X)",
- header->signature, (unsigned long)address,
- header->length, header->revision, header->oem_id,
- header->oem_table_id, header->oem_revision,
- header->asl_compiler_id,
- header->asl_compiler_revision));
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_validate_checksum
- *
- * PARAMETERS: Table - ACPI table to verify
- * Length - Length of entire table
- *
- * RETURN: Status
- *
- * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
- * exception on bad checksum.
- *
- ******************************************************************************/
-
-acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length)
-{
- u8 checksum;
-
- /* Compute the checksum on the table */
-
- checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length);
-
- /* Checksum ok? (should be zero) */
-
- if (checksum) {
- ACPI_WARNING((AE_INFO,
- "Incorrect checksum in table [%4.4s] - %2.2X, should be %2.2X",
- table->signature, table->checksum,
- (u8) (table->checksum - checksum)));
-
-#if (ACPI_CHECKSUM_ABORT)
-
- return (AE_BAD_CHECKSUM);
-#endif
- }
-
- return (AE_OK);
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_checksum
- *
- * PARAMETERS: Buffer - Pointer to memory region to be checked
- * Length - Length of this memory region
- *
- * RETURN: Checksum (u8)
- *
- * DESCRIPTION: Calculates circular checksum of memory region.
- *
- ******************************************************************************/
-
-u8 acpi_tb_checksum(u8 *buffer, u32 length)
-{
- u8 sum = 0;
- u8 *end = buffer + length;
-
- while (buffer < end) {
- sum = (u8) (sum + *(buffer++));
- }
-
- return sum;
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_install_table
- *
- * PARAMETERS: Address - Physical address of DSDT or FACS
- * Flags - Flags
- * Signature - Table signature, NULL if no need to
- * match
- * table_index - Index into root table array
- *
- * RETURN: None
- *
- * DESCRIPTION: Install an ACPI table into the global data structure.
- *
- ******************************************************************************/
-
-void
-acpi_tb_install_table(acpi_physical_address address,
- u8 flags, char *signature, u32 table_index)
-{
- struct acpi_table_header *table;
-
- if (!address) {
- ACPI_ERROR((AE_INFO,
- "Null physical address for ACPI table [%s]",
- signature));
- return;
- }
-
- /* Map just the table header */
-
- table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
- if (!table) {
- return;
- }
-
- /* If a particular signature is expected, signature must match */
-
- if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) {
- ACPI_ERROR((AE_INFO,
- "Invalid signature 0x%X for ACPI table [%s]",
- *ACPI_CAST_PTR(u32, table->signature), signature));
- goto unmap_and_exit;
- }
-
- /* Initialize the table entry */
-
- acpi_gbl_root_table_list.tables[table_index].address = address;
- acpi_gbl_root_table_list.tables[table_index].length = table->length;
- acpi_gbl_root_table_list.tables[table_index].flags = flags;
-
- ACPI_MOVE_32_TO_32(&
- (acpi_gbl_root_table_list.tables[table_index].
- signature), table->signature);
-
- acpi_tb_print_table_header(address, table);
-
- if (table_index == ACPI_TABLE_INDEX_DSDT) {
-
- /* Global integer width is based upon revision of the DSDT */
-
- acpi_ut_set_integer_width(table->revision);
- }
-
- unmap_and_exit:
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_get_root_table_entry
- *
- * PARAMETERS: table_entry - Pointer to the RSDT/XSDT table entry
- * table_entry_size - sizeof 32 or 64 (RSDT or XSDT)
- *
- * RETURN: Physical address extracted from the root table
- *
- * DESCRIPTION: Get one root table entry. Handles 32-bit and 64-bit cases on
- * both 32-bit and 64-bit platforms
- *
- * NOTE: acpi_physical_address is 32-bit on 32-bit platforms, 64-bit on
- * 64-bit platforms.
- *
- ******************************************************************************/
-
-static acpi_physical_address
-acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size)
-{
- u64 address64;
-
- /*
- * Get the table physical address (32-bit for RSDT, 64-bit for XSDT):
- * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT
- */
- if (table_entry_size == sizeof(u32)) {
- /*
- * 32-bit platform, RSDT: Return 32-bit table entry
- * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return
- */
- return ((acpi_physical_address)
- (*ACPI_CAST_PTR(u32, table_entry)));
- } else {
- /*
- * 32-bit platform, XSDT: Truncate 64-bit to 32-bit and return
- * 64-bit platform, XSDT: Move (unaligned) 64-bit to local, return 64-bit
- */
- ACPI_MOVE_64_TO_64(&address64, table_entry);
-
-#if ACPI_MACHINE_WIDTH == 32
- if (address64 > ACPI_UINT32_MAX) {
-
- /* Will truncate 64-bit address to 32 bits, issue warning */
-
- ACPI_WARNING((AE_INFO,
- "64-bit Physical Address in XSDT is too large (%8.8X%8.8X), truncating",
- ACPI_FORMAT_UINT64(address64)));
- }
-#endif
- return ((acpi_physical_address) (address64));
- }
-}
-
-/*******************************************************************************
- *
- * FUNCTION: acpi_tb_parse_root_table
- *
- * PARAMETERS: Rsdp - Pointer to the RSDP
- * Flags - Flags
- *
- * RETURN: Status
- *
- * DESCRIPTION: This function is called to parse the Root System Description
- * Table (RSDT or XSDT)
- *
- * NOTE: Tables are mapped (not copied) for efficiency. The FACS must
- * be mapped and cannot be copied because it contains the actual
- * memory location of the ACPI Global Lock.
- *
- ******************************************************************************/
-
-acpi_status __init
-acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
-{
- struct acpi_table_rsdp *rsdp;
- u32 table_entry_size;
- u32 i;
- u32 table_count;
- struct acpi_table_header *table;
- acpi_physical_address address;
- acpi_physical_address uninitialized_var(rsdt_address);
- u32 length;
- u8 *table_entry;
- acpi_status status;
-
- ACPI_FUNCTION_TRACE(tb_parse_root_table);
-
- /*
- * Map the entire RSDP and extract the address of the RSDT or XSDT
- */
- rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp));
- if (!rsdp) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- acpi_tb_print_table_header(rsdp_address,
- ACPI_CAST_PTR(struct acpi_table_header,
- rsdp));
-
- /* Differentiate between RSDT and XSDT root tables */
-
- if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
- /*
- * Root table is an XSDT (64-bit physical addresses). We must use the
- * XSDT if the revision is > 1 and the XSDT pointer is present, as per
- * the ACPI specification.
- */
- address = (acpi_physical_address) rsdp->xsdt_physical_address;
- table_entry_size = sizeof(u64);
- rsdt_address = (acpi_physical_address)
- rsdp->rsdt_physical_address;
- } else {
- /* Root table is an RSDT (32-bit physical addresses) */
-
- address = (acpi_physical_address) rsdp->rsdt_physical_address;
- table_entry_size = sizeof(u32);
- }
-
- /*
- * It is not possible to map more than one entry in some environments,
- * so unmap the RSDP here before mapping other tables
- */
- acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp));
-
- if (table_entry_size == sizeof(u64)) {
- if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) {
- /* XSDT has NULL entry, RSDT is used */
- address = rsdt_address;
- table_entry_size = sizeof(u32);
- ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, "
- "using RSDT"));
- }
- }
- /* Map the RSDT/XSDT table header to get the full table length */
-
- table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
- if (!table) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- acpi_tb_print_table_header(address, table);
-
- /* Get the length of the full table, verify length and map entire table */
-
- length = table->length;
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
-
- if (length < sizeof(struct acpi_table_header)) {
- ACPI_ERROR((AE_INFO, "Invalid length 0x%X in RSDT/XSDT",
- length));
- return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
- }
-
- table = acpi_os_map_memory(address, length);
- if (!table) {
- return_ACPI_STATUS(AE_NO_MEMORY);
- }
-
- /* Validate the root table checksum */
-
- status = acpi_tb_verify_checksum(table, length);
- if (ACPI_FAILURE(status)) {
- acpi_os_unmap_memory(table, length);
- return_ACPI_STATUS(status);
- }
-
- /* Calculate the number of tables described in the root table */
-
- table_count =
- (u32) ((table->length -
- sizeof(struct acpi_table_header)) / table_entry_size);
-
- /*
- * First two entries in the table array are reserved for the DSDT and FACS,
- * which are not actually present in the RSDT/XSDT - they come from the FADT
- */
- table_entry =
- ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
- acpi_gbl_root_table_list.count = 2;
-
- /*
- * Initialize the root table array from the RSDT/XSDT
- */
- for (i = 0; i < table_count; i++) {
- if (acpi_gbl_root_table_list.count >=
- acpi_gbl_root_table_list.size) {
-
- /* There is no more room in the root table array, attempt resize */
-
- status = acpi_tb_resize_root_table_list();
- if (ACPI_FAILURE(status)) {
- ACPI_WARNING((AE_INFO,
- "Truncating %u table entries!",
- (unsigned)
- (acpi_gbl_root_table_list.size -
- acpi_gbl_root_table_list.
- count)));
- break;
- }
- }
-
- /* Get the table physical address (32-bit for RSDT, 64-bit for XSDT) */
-
- acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].
- address =
- acpi_tb_get_root_table_entry(table_entry, table_entry_size);
-
- table_entry += table_entry_size;
- acpi_gbl_root_table_list.count++;
- }
-
- /*
- * It is not possible to map more than one entry in some environments,
- * so unmap the root table here before mapping other tables
- */
- acpi_os_unmap_memory(table, length);
-
- /*
- * Complete the initialization of the root table array by examining
- * the header of each table
- */
- for (i = 2; i < acpi_gbl_root_table_list.count; i++) {
- acpi_tb_install_table(acpi_gbl_root_table_list.tables[i].
- address, flags, NULL, i);
-
- /* Special case for FADT - get the DSDT and FACS */
-
- if (ACPI_COMPARE_NAME
- (&acpi_gbl_root_table_list.tables[i].signature,
- ACPI_SIG_FADT)) {
- acpi_tb_parse_fadt(i, flags);
- }
- }
-
- return_ACPI_STATUS(AE_OK);
-}