Merge branch 'misc' into release
authorLen Brown <len.brown@intel.com>
Fri, 9 Jan 2009 08:37:48 +0000 (03:37 -0500)
committerLen Brown <len.brown@intel.com>
Fri, 9 Jan 2009 08:37:48 +0000 (03:37 -0500)
Conflicts:
include/acpi/acpixf.h

Signed-off-by: Len Brown <len.brown@intel.com>
1  2 
arch/x86/kernel/acpi/boot.c
drivers/acpi/acpica/tbutils.c
drivers/acpi/pci_link.c
drivers/acpi/video.c
include/acpi/acpixf.h

Simple merge
index 3a8d8d2eee9210ee17ce21e2892b722837152f36,0000000000000000000000000000000000000000..9684cc827930c7e4682aab1d16ae98fcdbb12ab1
mode 100644,000000..100644
--- /dev/null
@@@ -1,582 -1,0 +1,583 @@@
-       if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
 +/******************************************************************************
 + *
 + * 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 "accommon.h"
 +#include "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
++                      && !acpi_rsdt_forced) {
 +              /*
 +               * 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);
 +}
Simple merge
Simple merge
index 7c7074f20087ad1b7073a2f9ba54a790fcc8bb96,05d2614e00782919cd0ce065f9871f6673a9a9f4..c8e8cf45830f6c5203f5d7e13f1531ff949d34ce
  #include "actypes.h"
  #include "actbl.h"
  
 +extern u8 acpi_gbl_permanent_mmap;
 +
 +/*
 + * Globals that are publically available, allowing for
 + * run time configuration
 + */
 +extern u32 acpi_dbg_level;
 +extern u32 acpi_dbg_layer;
 +extern u8 acpi_gbl_enable_interpreter_slack;
 +extern u8 acpi_gbl_all_methods_serialized;
 +extern u8 acpi_gbl_create_osi_method;
 +extern u8 acpi_gbl_leave_wake_gpes_disabled;
 +extern acpi_name acpi_gbl_trace_method_name;
 +extern u32 acpi_gbl_trace_flags;
 +
 +extern u32 acpi_current_gpe_count;
 +extern struct acpi_table_fadt acpi_gbl_FADT;
 +
+ extern u32 acpi_rsdt_forced;
  /*
   * Global interfaces
   */