diff options
Diffstat (limited to 'drivers/acpi/tables')
| -rw-r--r-- | drivers/acpi/tables/Makefile | 7 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbfadt.c | 474 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbfind.c | 139 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbinstal.c | 573 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbutils.c | 557 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbxface.c | 734 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbxfroot.c | 273 |
7 files changed, 0 insertions, 2757 deletions
diff --git a/drivers/acpi/tables/Makefile b/drivers/acpi/tables/Makefile deleted file mode 100644 index 7385efa6162..00000000000 --- a/drivers/acpi/tables/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/tables/tbfadt.c b/drivers/acpi/tables/tbfadt.c deleted file mode 100644 index 2c7885e7ffb..00000000000 --- a/drivers/acpi/tables/tbfadt.c +++ /dev/null @@ -1,474 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbfadt - FADT 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/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbfadt") - -/* Local prototypes */ -static void inline -acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 byte_width, u64 address); - -static void acpi_tb_convert_fadt(void); - -static void acpi_tb_validate_fadt(void); - -/* Table for conversion of FADT to common internal format and FADT validation */ - -typedef struct acpi_fadt_info { - char *name; - u8 target; - u8 source; - u8 length; - u8 type; - -} acpi_fadt_info; - -#define ACPI_FADT_REQUIRED 1 -#define ACPI_FADT_SEPARATE_LENGTH 2 - -static struct acpi_fadt_info fadt_info_table[] = { - {"Pm1aEventBlock", ACPI_FADT_OFFSET(xpm1a_event_block), - ACPI_FADT_OFFSET(pm1a_event_block), - ACPI_FADT_OFFSET(pm1_event_length), ACPI_FADT_REQUIRED}, - - {"Pm1bEventBlock", ACPI_FADT_OFFSET(xpm1b_event_block), - ACPI_FADT_OFFSET(pm1b_event_block), - ACPI_FADT_OFFSET(pm1_event_length), 0}, - - {"Pm1aControlBlock", ACPI_FADT_OFFSET(xpm1a_control_block), - ACPI_FADT_OFFSET(pm1a_control_block), - ACPI_FADT_OFFSET(pm1_control_length), ACPI_FADT_REQUIRED}, - - {"Pm1bControlBlock", ACPI_FADT_OFFSET(xpm1b_control_block), - ACPI_FADT_OFFSET(pm1b_control_block), - ACPI_FADT_OFFSET(pm1_control_length), 0}, - - {"Pm2ControlBlock", ACPI_FADT_OFFSET(xpm2_control_block), - ACPI_FADT_OFFSET(pm2_control_block), - ACPI_FADT_OFFSET(pm2_control_length), ACPI_FADT_SEPARATE_LENGTH}, - - {"PmTimerBlock", ACPI_FADT_OFFSET(xpm_timer_block), - ACPI_FADT_OFFSET(pm_timer_block), - ACPI_FADT_OFFSET(pm_timer_length), ACPI_FADT_REQUIRED}, - - {"Gpe0Block", ACPI_FADT_OFFSET(xgpe0_block), - ACPI_FADT_OFFSET(gpe0_block), - ACPI_FADT_OFFSET(gpe0_block_length), ACPI_FADT_SEPARATE_LENGTH}, - - {"Gpe1Block", ACPI_FADT_OFFSET(xgpe1_block), - ACPI_FADT_OFFSET(gpe1_block), - ACPI_FADT_OFFSET(gpe1_block_length), ACPI_FADT_SEPARATE_LENGTH} -}; - -#define ACPI_FADT_INFO_ENTRIES (sizeof (fadt_info_table) / sizeof (struct acpi_fadt_info)) - -/******************************************************************************* - * - * FUNCTION: acpi_tb_init_generic_address - * - * PARAMETERS: generic_address - GAS struct to be initialized - * byte_width - Width of this register - * Address - Address of the register - * - * RETURN: None - * - * DESCRIPTION: Initialize a Generic Address Structure (GAS) - * See the ACPI specification for a full description and - * definition of this structure. - * - ******************************************************************************/ - -static void inline -acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, - u8 byte_width, u64 address) -{ - - /* - * The 64-bit Address field is non-aligned in the byte packed - * GAS struct. - */ - ACPI_MOVE_64_TO_64(&generic_address->address, &address); - - /* All other fields are byte-wide */ - - generic_address->space_id = ACPI_ADR_SPACE_SYSTEM_IO; - generic_address->bit_width = byte_width << 3; - generic_address->bit_offset = 0; - generic_address->access_width = 0; -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_parse_fadt - * - * PARAMETERS: table_index - Index for the FADT - * Flags - Flags - * - * RETURN: None - * - * DESCRIPTION: Initialize the FADT, DSDT and FACS tables - * (FADT contains the addresses of the DSDT and FACS) - * - ******************************************************************************/ - -void acpi_tb_parse_fadt(u32 table_index, u8 flags) -{ - u32 length; - struct acpi_table_header *table; - - /* - * The FADT has multiple versions with different lengths, - * and it contains pointers to both the DSDT and FACS tables. - * - * Get a local copy of the FADT and convert it to a common format - * Map entire FADT, assumed to be smaller than one page. - */ - length = acpi_gbl_root_table_list.tables[table_index].length; - - table = - acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index]. - address, length); - if (!table) { - return; - } - - /* - * Validate the FADT checksum before we copy the table. Ignore - * checksum error as we want to try to get the DSDT and FACS. - */ - (void)acpi_tb_verify_checksum(table, length); - - /* Obtain a local copy of the FADT in common ACPI 2.0+ format */ - - acpi_tb_create_local_fadt(table, length); - - /* All done with the real FADT, unmap it */ - - acpi_os_unmap_memory(table, length); - - /* Obtain the DSDT and FACS tables via their addresses within the FADT */ - - acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt, - flags, ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT); - - acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xfacs, - flags, ACPI_SIG_FACS, ACPI_TABLE_INDEX_FACS); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_create_local_fadt - * - * PARAMETERS: Table - Pointer to BIOS FADT - * Length - Length of the table - * - * RETURN: None - * - * DESCRIPTION: Get a local copy of the FADT and convert it to a common format. - * Performs validation on some important FADT fields. - * - * NOTE: We create a local copy of the FADT regardless of the version. - * - ******************************************************************************/ - -void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) -{ - - /* - * Check if the FADT is larger than the largest table that we expect - * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue - * a warning. - */ - if (length > sizeof(struct acpi_table_fadt)) { - ACPI_WARNING((AE_INFO, - "FADT (revision %u) is longer than ACPI 2.0 version, truncating length 0x%X to 0x%zX", - table->revision, (unsigned)length, - sizeof(struct acpi_table_fadt))); - } - - /* Clear the entire local FADT */ - - ACPI_MEMSET(&acpi_gbl_FADT, 0, sizeof(struct acpi_table_fadt)); - - /* Copy the original FADT, up to sizeof (struct acpi_table_fadt) */ - - ACPI_MEMCPY(&acpi_gbl_FADT, table, - ACPI_MIN(length, sizeof(struct acpi_table_fadt))); - - /* - * 1) Convert the local copy of the FADT to the common internal format - * 2) Validate some of the important values within the FADT - */ - acpi_tb_convert_fadt(); - acpi_tb_validate_fadt(); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_convert_fadt - * - * PARAMETERS: None, uses acpi_gbl_FADT - * - * RETURN: None - * - * DESCRIPTION: Converts all versions of the FADT to a common internal format. - * Expand all 32-bit addresses to 64-bit. - * - * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), - * and must contain a copy of the actual FADT. - * - * ACPICA will use the "X" fields of the FADT for all addresses. - * - * "X" fields are optional extensions to the original V1.0 fields. Even if - * they are present in the structure, they can be optionally not used by - * setting them to zero. Therefore, we must selectively expand V1.0 fields - * if the corresponding X field is zero. - * - * For ACPI 1.0 FADTs, all address fields are expanded to the corresponding - * "X" fields. - * - * For ACPI 2.0 FADTs, any "X" fields that are NULL are filled in by - * expanding the corresponding ACPI 1.0 field. - * - ******************************************************************************/ - -static void acpi_tb_convert_fadt(void) -{ - u8 pm1_register_length; - struct acpi_generic_address *target; - u32 i; - - /* Update the local FADT table header length */ - - acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); - - /* Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary */ - - if (!acpi_gbl_FADT.Xfacs) { - acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs; - } - - if (!acpi_gbl_FADT.Xdsdt) { - acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt; - } - - /* - * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which - * should be zero are indeed zero. This will workaround BIOSs that - * inadvertently place values in these fields. - * - * The ACPI 1.0 reserved fields that will be zeroed are the bytes located at - * offset 45, 55, 95, and the word located at offset 109, 110. - */ - if (acpi_gbl_FADT.header.revision < 3) { - acpi_gbl_FADT.preferred_profile = 0; - acpi_gbl_FADT.pstate_control = 0; - acpi_gbl_FADT.cst_control = 0; - acpi_gbl_FADT.boot_flags = 0; - } - - /* - * Expand the ACPI 1.0 32-bit V1.0 addresses to the ACPI 2.0 64-bit "X" - * generic address structures as necessary. - */ - for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { - target = - ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT, - fadt_info_table[i].target); - - /* Expand only if the X target is null */ - - if (!target->address) { - acpi_tb_init_generic_address(target, - *ACPI_ADD_PTR(u8, - &acpi_gbl_FADT, - fadt_info_table - [i].length), - (u64) * ACPI_ADD_PTR(u32, - &acpi_gbl_FADT, - fadt_info_table - [i]. - source)); - } - } - - /* - * Calculate separate GAS structs for the PM1 Enable registers. - * These addresses do not appear (directly) in the FADT, so it is - * useful to calculate them once, here. - * - * The PM event blocks are split into two register blocks, first is the - * PM Status Register block, followed immediately by the PM Enable - * Register block. Each is of length (xpm1x_event_block.bit_width/2). - * - * On various systems the v2 fields (and particularly the bit widths) - * cannot be relied upon, though. Hence resort to using the v1 length - * here (and warn about the inconsistency). - */ - if (acpi_gbl_FADT.xpm1a_event_block.bit_width - != acpi_gbl_FADT.pm1_event_length * 8) - printk(KERN_WARNING "FADT: " - "X_PM1a_EVT_BLK.bit_width (%u) does not match" - " PM1_EVT_LEN (%u)\n", - acpi_gbl_FADT.xpm1a_event_block.bit_width, - acpi_gbl_FADT.pm1_event_length); - pm1_register_length = (u8) ACPI_DIV_2(acpi_gbl_FADT.pm1_event_length); - - /* The PM1A register block is required */ - - acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable, - pm1_register_length, - (acpi_gbl_FADT.xpm1a_event_block.address + - pm1_register_length)); - /* Don't forget to copy space_id of the GAS */ - acpi_gbl_xpm1a_enable.space_id = - acpi_gbl_FADT.xpm1a_event_block.space_id; - - /* The PM1B register block is optional, ignore if not present */ - - if (acpi_gbl_FADT.xpm1b_event_block.address) { - if (acpi_gbl_FADT.xpm1b_event_block.bit_width - != acpi_gbl_FADT.pm1_event_length * 8) - printk(KERN_WARNING "FADT: " - "X_PM1b_EVT_BLK.bit_width (%u) does not match" - " PM1_EVT_LEN (%u)\n", - acpi_gbl_FADT.xpm1b_event_block.bit_width, - acpi_gbl_FADT.pm1_event_length); - acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable, - pm1_register_length, - (acpi_gbl_FADT.xpm1b_event_block. - address + pm1_register_length)); - /* Don't forget to copy space_id of the GAS */ - acpi_gbl_xpm1b_enable.space_id = - acpi_gbl_FADT.xpm1b_event_block.space_id; - - } -} - -/****************************************************************************** - * - * FUNCTION: acpi_tb_validate_fadt - * - * PARAMETERS: Table - Pointer to the FADT to be validated - * - * RETURN: None - * - * DESCRIPTION: Validate various important fields within the FADT. If a problem - * is found, issue a message, but no status is returned. - * Used by both the table manager and the disassembler. - * - * Possible additional checks: - * (acpi_gbl_FADT.pm1_event_length >= 4) - * (acpi_gbl_FADT.pm1_control_length >= 2) - * (acpi_gbl_FADT.pm_timer_length >= 4) - * Gpe block lengths must be multiple of 2 - * - ******************************************************************************/ - -static void acpi_tb_validate_fadt(void) -{ - u32 *address32; - struct acpi_generic_address *address64; - u8 length; - u32 i; - - /* Examine all of the 64-bit extended address fields (X fields) */ - - for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { - - /* Generate pointers to the 32-bit and 64-bit addresses and get the length */ - - address64 = - ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT, - fadt_info_table[i].target); - address32 = - ACPI_ADD_PTR(u32, &acpi_gbl_FADT, - fadt_info_table[i].source); - length = - *ACPI_ADD_PTR(u8, &acpi_gbl_FADT, - fadt_info_table[i].length); - - if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) { - /* - * Field is required (Pm1a_event, Pm1a_control, pm_timer). - * Both the address and length must be non-zero. - */ - if (!address64->address || !length) { - ACPI_ERROR((AE_INFO, - "Required field \"%s\" has zero address and/or length: %8.8X%8.8X/%X", - fadt_info_table[i].name, - ACPI_FORMAT_UINT64(address64-> - address), - length)); - } - } else if (fadt_info_table[i].type & ACPI_FADT_SEPARATE_LENGTH) { - /* - * Field is optional (PM2Control, GPE0, GPE1) AND has its own - * length field. If present, both the address and length must be valid. - */ - if ((address64->address && !length) - || (!address64->address && length)) { - ACPI_WARNING((AE_INFO, - "Optional field \"%s\" has zero address or length: %8.8X%8.8X/%X", - fadt_info_table[i].name, - ACPI_FORMAT_UINT64(address64-> - address), - length)); - } - } - - /* If both 32- and 64-bit addresses are valid (non-zero), they must match */ - - if (address64->address && *address32 && - (address64->address != (u64) * address32)) { - ACPI_ERROR((AE_INFO, - "32/64X address mismatch in \"%s\": [%8.8X] [%8.8X%8.8X], using 64X", - fadt_info_table[i].name, *address32, - ACPI_FORMAT_UINT64(address64->address))); - } - } -} diff --git a/drivers/acpi/tables/tbfind.c b/drivers/acpi/tables/tbfind.c deleted file mode 100644 index 531584defbb..00000000000 --- a/drivers/acpi/tables/tbfind.c +++ /dev/null @@ -1,139 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbfind - find table - * - *****************************************************************************/ - -/* - * 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/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbfind") - -/******************************************************************************* - * - * FUNCTION: acpi_tb_find_table - * - * PARAMETERS: Signature - String with ACPI table signature - * oem_id - String with the table OEM ID - * oem_table_id - String with the OEM Table ID - * table_index - Where the table index is returned - * - * RETURN: Status and table index - * - * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the - * Signature, OEM ID and OEM Table ID. Returns an index that can - * be used to get the table header or entire table. - * - ******************************************************************************/ -acpi_status -acpi_tb_find_table(char *signature, - char *oem_id, char *oem_table_id, u32 *table_index) -{ - u32 i; - acpi_status status; - struct acpi_table_header header; - - ACPI_FUNCTION_TRACE(tb_find_table); - - /* Normalize the input strings */ - - ACPI_MEMSET(&header, 0, sizeof(struct acpi_table_header)); - ACPI_STRNCPY(header.signature, signature, ACPI_NAME_SIZE); - ACPI_STRNCPY(header.oem_id, oem_id, ACPI_OEM_ID_SIZE); - ACPI_STRNCPY(header.oem_table_id, oem_table_id, ACPI_OEM_TABLE_ID_SIZE); - - /* Search for the table */ - - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - if (ACPI_MEMCMP(&(acpi_gbl_root_table_list.tables[i].signature), - header.signature, ACPI_NAME_SIZE)) { - - /* Not the requested table */ - - continue; - } - - /* Table with matching signature has been found */ - - if (!acpi_gbl_root_table_list.tables[i].pointer) { - - /* Table is not currently mapped, map it */ - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[i]); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (!acpi_gbl_root_table_list.tables[i].pointer) { - continue; - } - } - - /* Check for table match on all IDs */ - - if (!ACPI_MEMCMP - (acpi_gbl_root_table_list.tables[i].pointer->signature, - header.signature, ACPI_NAME_SIZE) && (!oem_id[0] - || - !ACPI_MEMCMP - (acpi_gbl_root_table_list. - tables[i].pointer-> - oem_id, - header.oem_id, - ACPI_OEM_ID_SIZE)) - && (!oem_table_id[0] - || !ACPI_MEMCMP(acpi_gbl_root_table_list.tables[i]. - pointer->oem_table_id, - header.oem_table_id, - ACPI_OEM_TABLE_ID_SIZE))) { - *table_index = i; - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "Found table [%4.4s]\n", - header.signature)); - return_ACPI_STATUS(AE_OK); - } - } - - return_ACPI_STATUS(AE_NOT_FOUND); -} diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c deleted file mode 100644 index 18747ce8dd2..00000000000 --- a/drivers/acpi/tables/tbinstal.c +++ /dev/null @@ -1,573 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbinstal - ACPI table installation and removal - * - *****************************************************************************/ - -/* - * 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/acnamesp.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbinstal") - -/****************************************************************************** - * - * FUNCTION: acpi_tb_verify_table - * - * PARAMETERS: table_desc - table - * - * RETURN: Status - * - * DESCRIPTION: this function is called to verify and map table - * - *****************************************************************************/ -acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) -{ - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(tb_verify_table); - - /* Map the table if necessary */ - - if (!table_desc->pointer) { - if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) == - ACPI_TABLE_ORIGIN_MAPPED) { - table_desc->pointer = - acpi_os_map_memory(table_desc->address, - table_desc->length); - } - if (!table_desc->pointer) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - } - - /* FACS is the odd table, has no standard ACPI header and no checksum */ - - if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) { - - /* Always calculate checksum, ignore bad checksum if requested */ - - status = - acpi_tb_verify_checksum(table_desc->pointer, - table_desc->length); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_add_table - * - * PARAMETERS: table_desc - Table descriptor - * table_index - Where the table index is returned - * - * RETURN: Status - * - * DESCRIPTION: This function is called to add the ACPI table - * - ******************************************************************************/ - -acpi_status -acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index) -{ - u32 i; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE(tb_add_table); - - if (!table_desc->pointer) { - status = acpi_tb_verify_table(table_desc); - if (ACPI_FAILURE(status) || !table_desc->pointer) { - return_ACPI_STATUS(status); - } - } - - /* - * Originally, we checked the table signature for "SSDT" or "PSDT" here. - * Next, we added support for OEMx tables, signature "OEM". - * Valid tables were encountered with a null signature, so we've just - * given up on validating the signature, since it seems to be a waste - * of code. The original code was removed (05/2008). - */ - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* Check if table is already registered */ - - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - if (!acpi_gbl_root_table_list.tables[i].pointer) { - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[i]); - if (ACPI_FAILURE(status) - || !acpi_gbl_root_table_list.tables[i].pointer) { - continue; - } - } - - /* - * Check for a table match on the entire table length, - * not just the header. - */ - if (table_desc->length != - acpi_gbl_root_table_list.tables[i].length) { - continue; - } - - if (ACPI_MEMCMP(table_desc->pointer, - acpi_gbl_root_table_list.tables[i].pointer, - acpi_gbl_root_table_list.tables[i].length)) { - continue; - } - - /* - * Note: the current mechanism does not unregister a table if it is - * dynamically unloaded. The related namespace entries are deleted, - * but the table remains in the root table list. - * - * The assumption here is that the number of different tables that - * will be loaded is actually small, and there is minimal overhead - * in just keeping the table in case it is needed again. - * - * If this assumption changes in the future (perhaps on large - * machines with many table load/unload operations), tables will - * need to be unregistered when they are unloaded, and slots in the - * root table list should be reused when empty. - */ - - /* - * Table is already registered. - * We can delete the table that was passed as a parameter. - */ - acpi_tb_delete_table(table_desc); - *table_index = i; - - if (acpi_gbl_root_table_list.tables[i]. - flags & ACPI_TABLE_IS_LOADED) { - - /* Table is still loaded, this is an error */ - - status = AE_ALREADY_EXISTS; - goto release; - } else { - /* Table was unloaded, allow it to be reloaded */ - - table_desc->pointer = - acpi_gbl_root_table_list.tables[i].pointer; - table_desc->address = - acpi_gbl_root_table_list.tables[i].address; - status = AE_OK; - goto print_header; - } - } - - /* Add the table to the global root table list */ - - status = acpi_tb_store_table(table_desc->address, table_desc->pointer, - table_desc->length, table_desc->flags, - table_index); - if (ACPI_FAILURE(status)) { - goto release; - } - - print_header: - acpi_tb_print_table_header(table_desc->address, table_desc->pointer); - - release: - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_resize_root_table_list - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Expand the size of global table array - * - ******************************************************************************/ - -acpi_status acpi_tb_resize_root_table_list(void) -{ - struct acpi_table_desc *tables; - - ACPI_FUNCTION_TRACE(tb_resize_root_table_list); - - /* allow_resize flag is a parameter to acpi_initialize_tables */ - - if (!(acpi_gbl_root_table_list.flags & ACPI_ROOT_ALLOW_RESIZE)) { - ACPI_ERROR((AE_INFO, - "Resize of Root Table Array is not allowed")); - return_ACPI_STATUS(AE_SUPPORT); - } - - /* Increase the Table Array size */ - - tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list. - size + ACPI_ROOT_TABLE_SIZE_INCREMENT) - * sizeof(struct acpi_table_desc)); - if (!tables) { - ACPI_ERROR((AE_INFO, - "Could not allocate new root table array")); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Copy and free the previous table array */ - - if (acpi_gbl_root_table_list.tables) { - ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, - (acpi_size) acpi_gbl_root_table_list.size * - sizeof(struct acpi_table_desc)); - - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - ACPI_FREE(acpi_gbl_root_table_list.tables); - } - } - - acpi_gbl_root_table_list.tables = tables; - acpi_gbl_root_table_list.size += ACPI_ROOT_TABLE_SIZE_INCREMENT; - acpi_gbl_root_table_list.flags |= (u8) ACPI_ROOT_ORIGIN_ALLOCATED; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_store_table - * - * PARAMETERS: Address - Table address - * Table - Table header - * Length - Table length - * Flags - flags - * - * RETURN: Status and table index. - * - * DESCRIPTION: Add an ACPI table to the global table list - * - ******************************************************************************/ - -acpi_status -acpi_tb_store_table(acpi_physical_address address, - struct acpi_table_header *table, - u32 length, u8 flags, u32 *table_index) -{ - acpi_status status = AE_OK; - - /* Ensure that there is room for the table in the Root Table List */ - - if (acpi_gbl_root_table_list.count >= acpi_gbl_root_table_list.size) { - status = acpi_tb_resize_root_table_list(); - if (ACPI_FAILURE(status)) { - return (status); - } - } - - /* Initialize added table */ - - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - address = address; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - pointer = table; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].length = - length; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count]. - owner_id = 0; - acpi_gbl_root_table_list.tables[acpi_gbl_root_table_list.count].flags = - flags; - - ACPI_MOVE_32_TO_32(& - (acpi_gbl_root_table_list. - tables[acpi_gbl_root_table_list.count].signature), - table->signature); - - *table_index = acpi_gbl_root_table_list.count; - acpi_gbl_root_table_list.count++; - return (status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_table - * - * PARAMETERS: table_index - Table index - * - * RETURN: None - * - * DESCRIPTION: Delete one internal ACPI table - * - ******************************************************************************/ - -void acpi_tb_delete_table(struct acpi_table_desc *table_desc) -{ - /* Table must be mapped or allocated */ - if (!table_desc->pointer) { - return; - } - switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { - case ACPI_TABLE_ORIGIN_MAPPED: - acpi_os_unmap_memory(table_desc->pointer, table_desc->length); - break; - case ACPI_TABLE_ORIGIN_ALLOCATED: - ACPI_FREE(table_desc->pointer); - break; - default:; - } - - table_desc->pointer = NULL; -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_terminate - * - * PARAMETERS: None - * - * RETURN: None - * - * DESCRIPTION: Delete all internal ACPI tables - * - ******************************************************************************/ - -void acpi_tb_terminate(void) -{ - u32 i; - - ACPI_FUNCTION_TRACE(tb_terminate); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* Delete the individual tables */ - - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]); - } - - /* - * Delete the root table array if allocated locally. Array cannot be - * mapped, so we don't need to check for that flag. - */ - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - ACPI_FREE(acpi_gbl_root_table_list.tables); - } - - acpi_gbl_root_table_list.tables = NULL; - acpi_gbl_root_table_list.flags = 0; - acpi_gbl_root_table_list.count = 0; - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ACPI Tables freed\n")); - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_namespace_by_owner - * - * PARAMETERS: table_index - Table index - * - * RETURN: None - * - * DESCRIPTION: Delete all namespace objects created when this table was loaded. - * - ******************************************************************************/ - -void acpi_tb_delete_namespace_by_owner(u32 table_index) -{ - acpi_owner_id owner_id; - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - owner_id = - acpi_gbl_root_table_list.tables[table_index].owner_id; - } else { - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - acpi_ns_delete_namespace_by_owner(owner_id); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_allocate_owner_id - * - * PARAMETERS: table_index - Table index - * - * RETURN: Status - * - * DESCRIPTION: Allocates owner_id in table_desc - * - ******************************************************************************/ - -acpi_status acpi_tb_allocate_owner_id(u32 table_index) -{ - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_allocate_owner_id); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - status = acpi_ut_allocate_owner_id - (&(acpi_gbl_root_table_list.tables[table_index].owner_id)); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_release_owner_id - * - * PARAMETERS: table_index - Table index - * - * RETURN: Status - * - * DESCRIPTION: Releases owner_id in table_desc - * - ******************************************************************************/ - -acpi_status acpi_tb_release_owner_id(u32 table_index) -{ - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_release_owner_id); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - acpi_ut_release_owner_id(& - (acpi_gbl_root_table_list. - tables[table_index].owner_id)); - status = AE_OK; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_owner_id - * - * PARAMETERS: table_index - Table index - * owner_id - Where the table owner_id is returned - * - * RETURN: Status - * - * DESCRIPTION: returns owner_id for the ACPI table - * - ******************************************************************************/ - -acpi_status acpi_tb_get_owner_id(u32 table_index, acpi_owner_id *owner_id) -{ - acpi_status status = AE_BAD_PARAMETER; - - ACPI_FUNCTION_TRACE(tb_get_owner_id); - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - *owner_id = - acpi_gbl_root_table_list.tables[table_index].owner_id; - status = AE_OK; - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_is_table_loaded - * - * PARAMETERS: table_index - Table index - * - * RETURN: Table Loaded Flag - * - ******************************************************************************/ - -u8 acpi_tb_is_table_loaded(u32 table_index) -{ - u8 is_loaded = FALSE; - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - is_loaded = (u8) - (acpi_gbl_root_table_list.tables[table_index]. - flags & ACPI_TABLE_IS_LOADED); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return (is_loaded); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_set_table_loaded_flag - * - * PARAMETERS: table_index - Table index - * is_loaded - TRUE if table is loaded, FALSE otherwise - * - * RETURN: None - * - * DESCRIPTION: Sets the table loaded flag to either TRUE or FALSE. - * - ******************************************************************************/ - -void acpi_tb_set_table_loaded_flag(u32 table_index, u8 is_loaded) -{ - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (table_index < acpi_gbl_root_table_list.count) { - if (is_loaded) { - acpi_gbl_root_table_list.tables[table_index].flags |= - ACPI_TABLE_IS_LOADED; - } else { - acpi_gbl_root_table_list.tables[table_index].flags &= - ~ACPI_TABLE_IS_LOADED; - } - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); -} diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c deleted file mode 100644 index 0cc92ef5236..00000000000 --- a/drivers/acpi/tables/tbutils.c +++ /dev/null @@ -1,557 +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/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_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); -} diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c deleted file mode 100644 index fd7770aa106..00000000000 --- a/drivers/acpi/tables/tbxface.c +++ /dev/null @@ -1,734 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbxface - Public interfaces to the ACPI subsystem - * ACPI table oriented interfaces - * - *****************************************************************************/ - -/* - * 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/acnamesp.h> -#include <acpi/actables.h> - -#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 - * - * PARAMETERS: initial_table_count - Size of initial_table_array, in number of - * struct acpi_table_desc structures - * - * RETURN: Status - * - * DESCRIPTION: Allocate a root table array. Used by i_aSL compiler and - * acpi_initialize_tables. - * - ******************************************************************************/ - -acpi_status acpi_allocate_root_table(u32 initial_table_count) -{ - - acpi_gbl_root_table_list.size = initial_table_count; - acpi_gbl_root_table_list.flags = ACPI_ROOT_ALLOW_RESIZE; - - return (acpi_tb_resize_root_table_list()); -} - -/******************************************************************************* - * - * FUNCTION: acpi_initialize_tables - * - * PARAMETERS: initial_table_array - Pointer to an array of pre-allocated - * struct acpi_table_desc structures. If NULL, the - * array is dynamically allocated. - * initial_table_count - Size of initial_table_array, in number of - * struct acpi_table_desc structures - * allow_realloc - Flag to tell Table Manager if resize of - * pre-allocated array is allowed. Ignored - * if initial_table_array is NULL. - * - * RETURN: Status - * - * DESCRIPTION: Initialize the table manager, get the RSDP and RSDT/XSDT. - * - * NOTE: Allows static allocation of the initial table array in order - * to avoid the use of dynamic memory in confined environments - * such as the kernel boot sequence where it may not be available. - * - * If the host OS memory managers are initialized, use NULL for - * initial_table_array, and the table will be dynamically allocated. - * - ******************************************************************************/ - -acpi_status __init -acpi_initialize_tables(struct acpi_table_desc * initial_table_array, - u32 initial_table_count, u8 allow_resize) -{ - acpi_physical_address rsdp_address; - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_initialize_tables); - - /* - * Set up the Root Table Array - * Allocate the table array if requested - */ - if (!initial_table_array) { - status = acpi_allocate_root_table(initial_table_count); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } else { - /* Root Table Array has been statically allocated by the host */ - - ACPI_MEMSET(initial_table_array, 0, - (acpi_size) initial_table_count * - sizeof(struct acpi_table_desc)); - - acpi_gbl_root_table_list.tables = initial_table_array; - acpi_gbl_root_table_list.size = initial_table_count; - acpi_gbl_root_table_list.flags = ACPI_ROOT_ORIGIN_UNKNOWN; - if (allow_resize) { - acpi_gbl_root_table_list.flags |= - ACPI_ROOT_ALLOW_RESIZE; - } - } - - /* Get the address of the RSDP */ - - rsdp_address = acpi_os_get_root_pointer(); - if (!rsdp_address) { - return_ACPI_STATUS(AE_NOT_FOUND); - } - - /* - * Get the root table (RSDT or XSDT) and extract all entries to the local - * Root Table Array. This array contains the information of the RSDT/XSDT - * in a common, more useable format. - */ - status = - acpi_tb_parse_root_table(rsdp_address, ACPI_TABLE_ORIGIN_MAPPED); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_reallocate_root_table - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the - * root list from the previously provided scratch area. Should - * be called once dynamic memory allocation is available in the - * kernel - * - ******************************************************************************/ -acpi_status acpi_reallocate_root_table(void) -{ - struct acpi_table_desc *tables; - acpi_size new_size; - - ACPI_FUNCTION_TRACE(acpi_reallocate_root_table); - - /* - * Only reallocate the root table if the host provided a static buffer - * for the table array in the call to acpi_initialize_tables. - */ - if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) { - return_ACPI_STATUS(AE_SUPPORT); - } - - new_size = ((acpi_size) acpi_gbl_root_table_list.count + - ACPI_ROOT_TABLE_SIZE_INCREMENT) * - sizeof(struct acpi_table_desc); - - /* Create new array and copy the old array */ - - tables = ACPI_ALLOCATE_ZEROED(new_size); - if (!tables) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, new_size); - - acpi_gbl_root_table_list.size = acpi_gbl_root_table_list.count; - acpi_gbl_root_table_list.tables = tables; - acpi_gbl_root_table_list.flags = - ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_load_table - * - * PARAMETERS: table_ptr - 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. - * - ******************************************************************************/ -acpi_status acpi_load_table(struct acpi_table_header *table_ptr) -{ - acpi_status status; - u32 table_index; - struct acpi_table_desc table_desc; - - if (!table_ptr) - return AE_BAD_PARAMETER; - - ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); - table_desc.pointer = table_ptr; - table_desc.length = table_ptr->length; - table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN; - - /* - * Install the new table into the local data structures - */ - status = acpi_tb_add_table(&table_desc, &table_index); - if (ACPI_FAILURE(status)) { - return status; - } - status = acpi_ns_load_table(table_index, acpi_gbl_root_node); - return status; -} - -ACPI_EXPORT_SYMBOL(acpi_load_table) - -/****************************************************************************** - * - * FUNCTION: acpi_get_table_header - * - * PARAMETERS: Signature - ACPI signature of needed table - * Instance - Which instance (for SSDTs) - * out_table_header - The pointer to the table header to fill - * - * RETURN: Status and pointer to mapped table header - * - * DESCRIPTION: Finds an ACPI table header. - * - * NOTE: Caller is responsible in unmapping the header with - * acpi_os_unmap_memory - * - *****************************************************************************/ -acpi_status -acpi_get_table_header(char *signature, - u32 instance, struct acpi_table_header *out_table_header) -{ - u32 i; - u32 j; - struct acpi_table_header *header; - - /* Parameter validation */ - - if (!signature || !out_table_header) { - return (AE_BAD_PARAMETER); - } - - /* - * Walk the root table list - */ - for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) { - if (!ACPI_COMPARE_NAME - (&(acpi_gbl_root_table_list.tables[i].signature), - signature)) { - continue; - } - - if (++j < instance) { - continue; - } - - if (!acpi_gbl_root_table_list.tables[i].pointer) { - if ((acpi_gbl_root_table_list.tables[i]. - flags & ACPI_TABLE_ORIGIN_MASK) == - ACPI_TABLE_ORIGIN_MAPPED) { - header = - acpi_os_map_memory(acpi_gbl_root_table_list. - tables[i].address, - sizeof(struct - acpi_table_header)); - if (!header) { - return AE_NO_MEMORY; - } - ACPI_MEMCPY(out_table_header, header, - sizeof(struct acpi_table_header)); - acpi_os_unmap_memory(header, - sizeof(struct - acpi_table_header)); - } else { - return AE_NOT_FOUND; - } - } else { - ACPI_MEMCPY(out_table_header, - acpi_gbl_root_table_list.tables[i].pointer, - sizeof(struct acpi_table_header)); - } - return (AE_OK); - } - - return (AE_NOT_FOUND); -} - -ACPI_EXPORT_SYMBOL(acpi_get_table_header) - -/****************************************************************************** - * - * FUNCTION: acpi_unload_table_id - * - * PARAMETERS: id - Owner ID of the table to be removed. - * - * RETURN: Status - * - * DESCRIPTION: This routine is used to force the unload of a table (by id) - * - ******************************************************************************/ -acpi_status acpi_unload_table_id(acpi_owner_id id) -{ - int i; - acpi_status status = AE_NOT_EXIST; - - ACPI_FUNCTION_TRACE(acpi_unload_table_id); - - /* Find table in the global table list */ - for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - if (id != acpi_gbl_root_table_list.tables[i].owner_id) { - continue; - } - /* - * Delete all namespace objects owned by this table. Note that these - * objects can appear anywhere in the namespace by virtue of the AML - * "Scope" operator. Thus, we need to track ownership by an ID, not - * simply a position within the hierarchy - */ - acpi_tb_delete_namespace_by_owner(i); - status = acpi_tb_release_owner_id(i); - acpi_tb_set_table_loaded_flag(i, FALSE); - break; - } - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_unload_table_id) - -/******************************************************************************* - * - * FUNCTION: acpi_get_table - * - * PARAMETERS: Signature - ACPI signature of needed table - * Instance - Which instance (for SSDTs) - * out_table - Where the pointer to the table is returned - * - * RETURN: Status and pointer to table - * - * DESCRIPTION: Finds and verifies an ACPI table. - * - *****************************************************************************/ -acpi_status -acpi_get_table(char *signature, - u32 instance, struct acpi_table_header **out_table) -{ - u32 i; - u32 j; - acpi_status status; - - /* Parameter validation */ - - if (!signature || !out_table) { - return (AE_BAD_PARAMETER); - } - - /* - * Walk the root table list - */ - for (i = 0, j = 0; i < acpi_gbl_root_table_list.count; i++) { - if (!ACPI_COMPARE_NAME - (&(acpi_gbl_root_table_list.tables[i].signature), - signature)) { - continue; - } - - if (++j < instance) { - continue; - } - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]); - if (ACPI_SUCCESS(status)) { - *out_table = acpi_gbl_root_table_list.tables[i].pointer; - } - - if (!acpi_gbl_permanent_mmap) { - acpi_gbl_root_table_list.tables[i].pointer = NULL; - } - - return (status); - } - - return (AE_NOT_FOUND); -} - -ACPI_EXPORT_SYMBOL(acpi_get_table) - -/******************************************************************************* - * - * FUNCTION: acpi_get_table_by_index - * - * PARAMETERS: table_index - Table index - * Table - Where the pointer to the table is returned - * - * RETURN: Status and pointer to the table - * - * DESCRIPTION: Obtain a table by an index into the global table list. - * - ******************************************************************************/ -acpi_status -acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_get_table_by_index); - - /* Parameter validation */ - - if (!table) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - - /* Validate index */ - - if (table_index >= acpi_gbl_root_table_list.count) { - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - if (!acpi_gbl_root_table_list.tables[table_index].pointer) { - - /* Table is not mapped, map it */ - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[table_index]); - if (ACPI_FAILURE(status)) { - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); - } - } - - *table = acpi_gbl_root_table_list.tables[table_index].pointer; - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(AE_OK); -} - -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; - struct acpi_table_header *table; - u32 i; - - 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. - */ - if (!acpi_gbl_root_table_list.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; - } - - /* - * Find DSDT table - */ - status = - acpi_os_table_override(acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT].pointer, - &table); - if (ACPI_SUCCESS(status) && table) { - /* - * DSDT table has been found - */ - acpi_tb_delete_table(&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT]); - acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].pointer = - table; - acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].length = - table->length; - acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].flags = - ACPI_TABLE_ORIGIN_UNKNOWN; - - ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS")); - acpi_tb_print_table_header(0, table); - - if (no_auto_ssdt == 0) { - printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\"\n"); - } - } - - status = - acpi_tb_verify_table(&acpi_gbl_root_table_list. - tables[ACPI_TABLE_INDEX_DSDT]); - if (ACPI_FAILURE(status)) { - - /* A valid DSDT is required */ - - status = AE_NO_ACPI_TABLES; - goto unlock_and_exit; - } - - (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.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) - - -/******************************************************************************* - * - * FUNCTION: acpi_install_table_handler - * - * PARAMETERS: Handler - Table event handler - * Context - Value passed to the handler on each event - * - * RETURN: Status - * - * DESCRIPTION: Install table event handler - * - ******************************************************************************/ -acpi_status -acpi_install_table_handler(acpi_tbl_handler handler, void *context) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_install_table_handler); - - if (!handler) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Don't allow more than one handler */ - - if (acpi_gbl_table_handler) { - status = AE_ALREADY_EXISTS; - goto cleanup; - } - - /* Install the handler */ - - acpi_gbl_table_handler = handler; - acpi_gbl_table_handler_context = context; - - cleanup: - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -ACPI_EXPORT_SYMBOL(acpi_install_table_handler) - -/******************************************************************************* - * - * FUNCTION: acpi_remove_table_handler - * - * PARAMETERS: Handler - Table event handler that was installed - * previously. - * - * RETURN: Status - * - * DESCRIPTION: Remove table event handler - * - ******************************************************************************/ -acpi_status acpi_remove_table_handler(acpi_tbl_handler handler) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE(acpi_remove_table_handler); - - status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Make sure that the installed handler is the same */ - - if (!handler || handler != acpi_gbl_table_handler) { - status = AE_BAD_PARAMETER; - goto cleanup; - } - - /* Remove the handler */ - - acpi_gbl_table_handler = NULL; - - cleanup: - (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); - return_ACPI_STATUS(status); -} - -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/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c deleted file mode 100644 index 2d157e0f98d..00000000000 --- a/drivers/acpi/tables/tbxfroot.c +++ /dev/null @@ -1,273 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbxfroot - Find the root ACPI table (RSDT) - * - *****************************************************************************/ - -/* - * 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/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbxfroot") - -/* Local prototypes */ -static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length); - -static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp); - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_rsdp - * - * PARAMETERS: Rsdp - Pointer to unvalidated RSDP - * - * RETURN: Status - * - * DESCRIPTION: Validate the RSDP (ptr) - * - ******************************************************************************/ - -static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp) -{ - ACPI_FUNCTION_ENTRY(); - - /* - * The signature and checksum must both be correct - * - * Note: Sometimes there exists more than one RSDP in memory; the valid - * RSDP has a valid checksum, all others have an invalid checksum. - */ - if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP, sizeof(ACPI_SIG_RSDP) - 1) - != 0) { - - /* Nope, BAD Signature */ - - return (AE_BAD_SIGNATURE); - } - - /* Check the standard checksum */ - - if (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) { - return (AE_BAD_CHECKSUM); - } - - /* Check extended checksum if table version >= 2 */ - - if ((rsdp->revision >= 2) && - (acpi_tb_checksum((u8 *) rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != 0)) { - return (AE_BAD_CHECKSUM); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_find_root_pointer - * - * PARAMETERS: table_address - Where the table pointer is returned - * - * RETURN: Status, RSDP physical address - * - * DESCRIPTION: Search lower 1_mbyte of memory for the root system descriptor - * pointer structure. If it is found, set *RSDP to point to it. - * - * NOTE1: The RSDP must be either in the first 1_k of the Extended - * BIOS Data Area or between E0000 and FFFFF (From ACPI Spec.) - * Only a 32-bit physical address is necessary. - * - * NOTE2: This function is always available, regardless of the - * initialization state of the rest of ACPI. - * - ******************************************************************************/ - -acpi_status acpi_find_root_pointer(acpi_size *table_address) -{ - u8 *table_ptr; - u8 *mem_rover; - u32 physical_address; - - ACPI_FUNCTION_TRACE(acpi_find_root_pointer); - - /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */ - - table_ptr = acpi_os_map_memory((acpi_physical_address) - ACPI_EBDA_PTR_LOCATION, - ACPI_EBDA_PTR_LENGTH); - if (!table_ptr) { - ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", - ACPI_EBDA_PTR_LOCATION, ACPI_EBDA_PTR_LENGTH)); - - return_ACPI_STATUS(AE_NO_MEMORY); - } - - ACPI_MOVE_16_TO_32(&physical_address, table_ptr); - - /* Convert segment part to physical address */ - - physical_address <<= 4; - acpi_os_unmap_memory(table_ptr, ACPI_EBDA_PTR_LENGTH); - - /* EBDA present? */ - - if (physical_address > 0x400) { - /* - * 1b) Search EBDA paragraphs (EBDA is required to be a - * minimum of 1_k length) - */ - table_ptr = acpi_os_map_memory((acpi_physical_address) - physical_address, - ACPI_EBDA_WINDOW_SIZE); - if (!table_ptr) { - ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", - physical_address, ACPI_EBDA_WINDOW_SIZE)); - - return_ACPI_STATUS(AE_NO_MEMORY); - } - - mem_rover = - acpi_tb_scan_memory_for_rsdp(table_ptr, - ACPI_EBDA_WINDOW_SIZE); - acpi_os_unmap_memory(table_ptr, ACPI_EBDA_WINDOW_SIZE); - - if (mem_rover) { - - /* Return the physical address */ - - physical_address += - (u32) ACPI_PTR_DIFF(mem_rover, table_ptr); - - *table_address = physical_address; - return_ACPI_STATUS(AE_OK); - } - } - - /* - * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh - */ - table_ptr = acpi_os_map_memory((acpi_physical_address) - ACPI_HI_RSDP_WINDOW_BASE, - ACPI_HI_RSDP_WINDOW_SIZE); - - if (!table_ptr) { - ACPI_ERROR((AE_INFO, - "Could not map memory at %8.8X for length %X", - ACPI_HI_RSDP_WINDOW_BASE, - ACPI_HI_RSDP_WINDOW_SIZE)); - - return_ACPI_STATUS(AE_NO_MEMORY); - } - - mem_rover = - acpi_tb_scan_memory_for_rsdp(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE); - acpi_os_unmap_memory(table_ptr, ACPI_HI_RSDP_WINDOW_SIZE); - - if (mem_rover) { - - /* Return the physical address */ - - physical_address = (u32) - (ACPI_HI_RSDP_WINDOW_BASE + - ACPI_PTR_DIFF(mem_rover, table_ptr)); - - *table_address = physical_address; - return_ACPI_STATUS(AE_OK); - } - - /* A valid RSDP was not found */ - - ACPI_ERROR((AE_INFO, "A valid RSDP was not found")); - return_ACPI_STATUS(AE_NOT_FOUND); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_scan_memory_for_rsdp - * - * PARAMETERS: start_address - Starting pointer for search - * Length - Maximum length to search - * - * RETURN: Pointer to the RSDP if found, otherwise NULL. - * - * DESCRIPTION: Search a block of memory for the RSDP signature - * - ******************************************************************************/ -static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length) -{ - acpi_status status; - u8 *mem_rover; - u8 *end_address; - - ACPI_FUNCTION_TRACE(tb_scan_memory_for_rsdp); - - end_address = start_address + length; - - /* Search from given start address for the requested length */ - - for (mem_rover = start_address; mem_rover < end_address; - mem_rover += ACPI_RSDP_SCAN_STEP) { - - /* The RSDP signature and checksum must both be correct */ - - status = - acpi_tb_validate_rsdp(ACPI_CAST_PTR - (struct acpi_table_rsdp, mem_rover)); - if (ACPI_SUCCESS(status)) { - - /* Sig and checksum valid, we have found a real RSDP */ - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "RSDP located at physical address %p\n", - mem_rover)); - return_PTR(mem_rover); - } - - /* No sig match or bad checksum, keep searching */ - } - - /* Searched entire block, no RSDP was found */ - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Searched entire block from %p, valid RSDP was not found\n", - start_address)); - return_PTR(NULL); -} |