diff options
Diffstat (limited to 'drivers/acpi/tables')
| -rw-r--r-- | drivers/acpi/tables/Makefile | 8 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbconvrt.c | 615 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbget.c | 471 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbgetall.c | 301 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbinstal.c | 538 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbrsdt.c | 288 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbutils.c | 299 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbxface.c | 422 | ||||
| -rw-r--r-- | drivers/acpi/tables/tbxfroot.c | 642 |
9 files changed, 0 insertions, 3584 deletions
diff --git a/drivers/acpi/tables/Makefile b/drivers/acpi/tables/Makefile deleted file mode 100644 index aa4c69594d9..00000000000 --- a/drivers/acpi/tables/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -# -# Makefile for all Linux ACPI interpreter subdirectories -# - -obj-y := tbconvrt.o tbget.o tbrsdt.o tbxface.o \ - tbgetall.o tbinstal.o tbutils.o tbxfroot.o - -EXTRA_CFLAGS += $(ACPI_CFLAGS) diff --git a/drivers/acpi/tables/tbconvrt.c b/drivers/acpi/tables/tbconvrt.c deleted file mode 100644 index a03939399fa..00000000000 --- a/drivers/acpi/tables/tbconvrt.c +++ /dev/null @@ -1,615 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbconvrt - ACPI Table conversion utilities - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <linux/module.h> - -#include <acpi/acpi.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbconvrt") - -/* Local prototypes */ -static void -acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct, - u8 register_bit_width, - acpi_physical_address address); - -static void -acpi_tb_convert_fadt1(struct fadt_descriptor_rev2 *local_fadt, - struct fadt_descriptor_rev1 *original_fadt); - -static void -acpi_tb_convert_fadt2(struct fadt_descriptor_rev2 *local_fadt, - struct fadt_descriptor_rev2 *original_fadt); - -u8 acpi_fadt_is_v1; -EXPORT_SYMBOL(acpi_fadt_is_v1); - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_table_count - * - * PARAMETERS: RSDP - Pointer to the RSDP - * RSDT - Pointer to the RSDT/XSDT - * - * RETURN: The number of tables pointed to by the RSDT or XSDT. - * - * DESCRIPTION: Calculate the number of tables. Automatically handles either - * an RSDT or XSDT. - * - ******************************************************************************/ - -u32 -acpi_tb_get_table_count(struct rsdp_descriptor *RSDP, - struct acpi_table_header *RSDT) -{ - u32 pointer_size; - - ACPI_FUNCTION_ENTRY(); - - /* RSDT pointers are 32 bits, XSDT pointers are 64 bits */ - - if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { - pointer_size = sizeof(u32); - } else { - pointer_size = sizeof(u64); - } - - /* - * Determine the number of tables pointed to by the RSDT/XSDT. - * This is defined by the ACPI Specification to be the number of - * pointers contained within the RSDT/XSDT. The size of the pointers - * is architecture-dependent. - */ - return ((RSDT->length - - sizeof(struct acpi_table_header)) / pointer_size); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_convert_to_xsdt - * - * PARAMETERS: table_info - Info about the RSDT - * - * RETURN: Status - * - * DESCRIPTION: Convert an RSDT to an XSDT (internal common format) - * - ******************************************************************************/ - -acpi_status acpi_tb_convert_to_xsdt(struct acpi_table_desc *table_info) -{ - acpi_size table_size; - u32 i; - XSDT_DESCRIPTOR *new_table; - - ACPI_FUNCTION_ENTRY(); - - /* Compute size of the converted XSDT */ - - table_size = ((acpi_size) acpi_gbl_rsdt_table_count * sizeof(u64)) + - sizeof(struct acpi_table_header); - - /* Allocate an XSDT */ - - new_table = ACPI_MEM_CALLOCATE(table_size); - if (!new_table) { - return (AE_NO_MEMORY); - } - - /* Copy the header and set the length */ - - ACPI_MEMCPY(new_table, table_info->pointer, - sizeof(struct acpi_table_header)); - new_table->length = (u32) table_size; - - /* Copy the table pointers */ - - for (i = 0; i < acpi_gbl_rsdt_table_count; i++) { - /* RSDT pointers are 32 bits, XSDT pointers are 64 bits */ - - if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { - ACPI_STORE_ADDRESS(new_table->table_offset_entry[i], - (ACPI_CAST_PTR - (struct rsdt_descriptor_rev1, - table_info->pointer))-> - table_offset_entry[i]); - } else { - new_table->table_offset_entry[i] = - (ACPI_CAST_PTR(XSDT_DESCRIPTOR, - table_info->pointer))-> - table_offset_entry[i]; - } - } - - /* Delete the original table (either mapped or in a buffer) */ - - acpi_tb_delete_single_table(table_info); - - /* Point the table descriptor to the new table */ - - table_info->pointer = - ACPI_CAST_PTR(struct acpi_table_header, new_table); - table_info->length = table_size; - table_info->allocation = ACPI_MEM_ALLOCATED; - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_init_generic_address - * - * PARAMETERS: new_gas_struct - GAS struct to be initialized - * register_bit_width - Width of this register - * Address - Address of the register - * - * RETURN: None - * - * DESCRIPTION: Initialize a GAS structure. - * - ******************************************************************************/ - -static void -acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct, - u8 register_bit_width, - acpi_physical_address address) -{ - - ACPI_STORE_ADDRESS(new_gas_struct->address, address); - - new_gas_struct->address_space_id = ACPI_ADR_SPACE_SYSTEM_IO; - new_gas_struct->register_bit_width = register_bit_width; - new_gas_struct->register_bit_offset = 0; - new_gas_struct->access_width = 0; -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_convert_fadt1 - * - * PARAMETERS: local_fadt - Pointer to new FADT - * original_fadt - Pointer to old FADT - * - * RETURN: None, populates local_fadt - * - * DESCRIPTION: Convert an ACPI 1.0 FADT to common internal format - * - ******************************************************************************/ - -static void -acpi_tb_convert_fadt1(struct fadt_descriptor_rev2 *local_fadt, - struct fadt_descriptor_rev1 *original_fadt) -{ - - /* ACPI 1.0 FACS */ - /* The BIOS stored FADT should agree with Revision 1.0 */ - acpi_fadt_is_v1 = 1; - - /* - * Copy the table header and the common part of the tables. - * - * The 2.0 table is an extension of the 1.0 table, so the entire 1.0 - * table can be copied first, then expand some fields to 64 bits. - */ - ACPI_MEMCPY(local_fadt, original_fadt, - sizeof(struct fadt_descriptor_rev1)); - - /* Convert table pointers to 64-bit fields */ - - ACPI_STORE_ADDRESS(local_fadt->xfirmware_ctrl, - local_fadt->V1_firmware_ctrl); - ACPI_STORE_ADDRESS(local_fadt->Xdsdt, local_fadt->V1_dsdt); - - /* - * System Interrupt Model isn't used in ACPI 2.0 - * (local_fadt->Reserved1 = 0;) - */ - - /* - * This field is set by the OEM to convey the preferred power management - * profile to OSPM. It doesn't have any 1.0 equivalence. Since we don't - * know what kind of 32-bit system this is, we will use "unspecified". - */ - local_fadt->prefer_PM_profile = PM_UNSPECIFIED; - - /* - * Processor Performance State Control. This is the value OSPM writes to - * the SMI_CMD register to assume processor performance state control - * responsibility. There isn't any equivalence in 1.0, but as many 1.x - * ACPI tables contain _PCT and _PSS we also keep this value, unless - * acpi_strict is set. - */ - if (acpi_strict) - local_fadt->pstate_cnt = 0; - - /* - * Support for the _CST object and C States change notification. - * This data item hasn't any 1.0 equivalence so leave it zero. - */ - local_fadt->cst_cnt = 0; - - /* - * FADT Rev 2 was an interim FADT released between ACPI 1.0 and ACPI 2.0. - * It primarily adds the FADT reset mechanism. - */ - if ((original_fadt->revision == 2) && - (original_fadt->length == - sizeof(struct fadt_descriptor_rev2_minus))) { - /* - * Grab the entire generic address struct, plus the 1-byte reset value - * that immediately follows. - */ - ACPI_MEMCPY(&local_fadt->reset_register, - &(ACPI_CAST_PTR(struct fadt_descriptor_rev2_minus, - original_fadt))->reset_register, - sizeof(struct acpi_generic_address) + 1); - } else { - /* - * Since there isn't any equivalence in 1.0 and since it is highly - * likely that a 1.0 system has legacy support. - */ - local_fadt->iapc_boot_arch = BAF_LEGACY_DEVICES; - } - - /* - * Convert the V1.0 block addresses to V2.0 GAS structures - */ - acpi_tb_init_generic_address(&local_fadt->xpm1a_evt_blk, - local_fadt->pm1_evt_len, - (acpi_physical_address) local_fadt-> - V1_pm1a_evt_blk); - acpi_tb_init_generic_address(&local_fadt->xpm1b_evt_blk, - local_fadt->pm1_evt_len, - (acpi_physical_address) local_fadt-> - V1_pm1b_evt_blk); - acpi_tb_init_generic_address(&local_fadt->xpm1a_cnt_blk, - local_fadt->pm1_cnt_len, - (acpi_physical_address) local_fadt-> - V1_pm1a_cnt_blk); - acpi_tb_init_generic_address(&local_fadt->xpm1b_cnt_blk, - local_fadt->pm1_cnt_len, - (acpi_physical_address) local_fadt-> - V1_pm1b_cnt_blk); - acpi_tb_init_generic_address(&local_fadt->xpm2_cnt_blk, - local_fadt->pm2_cnt_len, - (acpi_physical_address) local_fadt-> - V1_pm2_cnt_blk); - acpi_tb_init_generic_address(&local_fadt->xpm_tmr_blk, - local_fadt->pm_tm_len, - (acpi_physical_address) local_fadt-> - V1_pm_tmr_blk); - acpi_tb_init_generic_address(&local_fadt->xgpe0_blk, 0, - (acpi_physical_address) local_fadt-> - V1_gpe0_blk); - acpi_tb_init_generic_address(&local_fadt->xgpe1_blk, 0, - (acpi_physical_address) local_fadt-> - V1_gpe1_blk); - - /* Create separate GAS structs for the PM1 Enable registers */ - - acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable, - (u8) ACPI_DIV_2(acpi_gbl_FADT-> - pm1_evt_len), - (acpi_physical_address) - (local_fadt->xpm1a_evt_blk.address + - ACPI_DIV_2(acpi_gbl_FADT->pm1_evt_len))); - - /* PM1B is optional; leave null if not present */ - - if (local_fadt->xpm1b_evt_blk.address) { - acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable, - (u8) ACPI_DIV_2(acpi_gbl_FADT-> - pm1_evt_len), - (acpi_physical_address) - (local_fadt->xpm1b_evt_blk. - address + - ACPI_DIV_2(acpi_gbl_FADT-> - pm1_evt_len))); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_convert_fadt2 - * - * PARAMETERS: local_fadt - Pointer to new FADT - * original_fadt - Pointer to old FADT - * - * RETURN: None, populates local_fadt - * - * DESCRIPTION: Convert an ACPI 2.0 FADT to common internal format. - * Handles optional "X" fields. - * - ******************************************************************************/ - -static void -acpi_tb_convert_fadt2(struct fadt_descriptor_rev2 *local_fadt, - struct fadt_descriptor_rev2 *original_fadt) -{ - - /* We have an ACPI 2.0 FADT but we must copy it to our local buffer */ - - ACPI_MEMCPY(local_fadt, original_fadt, - sizeof(struct fadt_descriptor_rev2)); - - /* - * "X" fields are optional extensions to the original V1.0 fields, so - * we must selectively expand V1.0 fields if the corresponding X field - * is zero. - */ - if (!(local_fadt->xfirmware_ctrl)) { - ACPI_STORE_ADDRESS(local_fadt->xfirmware_ctrl, - local_fadt->V1_firmware_ctrl); - } - - if (!(local_fadt->Xdsdt)) { - ACPI_STORE_ADDRESS(local_fadt->Xdsdt, local_fadt->V1_dsdt); - } - - if (!(local_fadt->xpm1a_evt_blk.address)) { - acpi_tb_init_generic_address(&local_fadt->xpm1a_evt_blk, - local_fadt->pm1_evt_len, - (acpi_physical_address) - local_fadt->V1_pm1a_evt_blk); - } - - if (!(local_fadt->xpm1b_evt_blk.address)) { - acpi_tb_init_generic_address(&local_fadt->xpm1b_evt_blk, - local_fadt->pm1_evt_len, - (acpi_physical_address) - local_fadt->V1_pm1b_evt_blk); - } - - if (!(local_fadt->xpm1a_cnt_blk.address)) { - acpi_tb_init_generic_address(&local_fadt->xpm1a_cnt_blk, - local_fadt->pm1_cnt_len, - (acpi_physical_address) - local_fadt->V1_pm1a_cnt_blk); - } - - if (!(local_fadt->xpm1b_cnt_blk.address)) { - acpi_tb_init_generic_address(&local_fadt->xpm1b_cnt_blk, - local_fadt->pm1_cnt_len, - (acpi_physical_address) - local_fadt->V1_pm1b_cnt_blk); - } - - if (!(local_fadt->xpm2_cnt_blk.address)) { - acpi_tb_init_generic_address(&local_fadt->xpm2_cnt_blk, - local_fadt->pm2_cnt_len, - (acpi_physical_address) - local_fadt->V1_pm2_cnt_blk); - } - - if (!(local_fadt->xpm_tmr_blk.address)) { - acpi_tb_init_generic_address(&local_fadt->xpm_tmr_blk, - local_fadt->pm_tm_len, - (acpi_physical_address) - local_fadt->V1_pm_tmr_blk); - } - - if (!(local_fadt->xgpe0_blk.address)) { - acpi_tb_init_generic_address(&local_fadt->xgpe0_blk, - 0, - (acpi_physical_address) - local_fadt->V1_gpe0_blk); - } - - if (!(local_fadt->xgpe1_blk.address)) { - acpi_tb_init_generic_address(&local_fadt->xgpe1_blk, - 0, - (acpi_physical_address) - local_fadt->V1_gpe1_blk); - } - - /* Create separate GAS structs for the PM1 Enable registers */ - - acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable, - (u8) ACPI_DIV_2(acpi_gbl_FADT-> - pm1_evt_len), - (acpi_physical_address) - (local_fadt->xpm1a_evt_blk.address + - ACPI_DIV_2(acpi_gbl_FADT->pm1_evt_len))); - - acpi_gbl_xpm1a_enable.address_space_id = - local_fadt->xpm1a_evt_blk.address_space_id; - - /* PM1B is optional; leave null if not present */ - - if (local_fadt->xpm1b_evt_blk.address) { - acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable, - (u8) ACPI_DIV_2(acpi_gbl_FADT-> - pm1_evt_len), - (acpi_physical_address) - (local_fadt->xpm1b_evt_blk. - address + - ACPI_DIV_2(acpi_gbl_FADT-> - pm1_evt_len))); - - acpi_gbl_xpm1b_enable.address_space_id = - local_fadt->xpm1b_evt_blk.address_space_id; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_convert_table_fadt - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Converts a BIOS supplied ACPI 1.0 FADT to a local - * ACPI 2.0 FADT. If the BIOS supplied a 2.0 FADT then it is simply - * copied to the local FADT. The ACPI CA software uses this - * local FADT. Thus a significant amount of special #ifdef - * type codeing is saved. - * - ******************************************************************************/ - -acpi_status acpi_tb_convert_table_fadt(void) -{ - struct fadt_descriptor_rev2 *local_fadt; - struct acpi_table_desc *table_desc; - - ACPI_FUNCTION_TRACE("tb_convert_table_fadt"); - - /* - * acpi_gbl_FADT is valid. Validate the FADT length. The table must be - * at least as long as the version 1.0 FADT - */ - if (acpi_gbl_FADT->length < sizeof(struct fadt_descriptor_rev1)) { - ACPI_REPORT_ERROR(("FADT is invalid, too short: 0x%X\n", - acpi_gbl_FADT->length)); - return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); - } - - /* Allocate buffer for the ACPI 2.0(+) FADT */ - - local_fadt = ACPI_MEM_CALLOCATE(sizeof(struct fadt_descriptor_rev2)); - if (!local_fadt) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - if (acpi_gbl_FADT->revision >= FADT2_REVISION_ID) { - if (acpi_gbl_FADT->length < sizeof(struct fadt_descriptor_rev2)) { - /* Length is too short to be a V2.0 table */ - - ACPI_REPORT_WARNING(("Inconsistent FADT length (0x%X) and revision (0x%X), using FADT V1.0 portion of table\n", acpi_gbl_FADT->length, acpi_gbl_FADT->revision)); - - acpi_tb_convert_fadt1(local_fadt, - (void *)acpi_gbl_FADT); - } else { - /* Valid V2.0 table */ - - acpi_tb_convert_fadt2(local_fadt, acpi_gbl_FADT); - } - } else { - /* Valid V1.0 table */ - - acpi_tb_convert_fadt1(local_fadt, (void *)acpi_gbl_FADT); - } - - /* Global FADT pointer will point to the new common V2.0 FADT */ - - acpi_gbl_FADT = local_fadt; - acpi_gbl_FADT->length = sizeof(FADT_DESCRIPTOR); - - /* Free the original table */ - - table_desc = acpi_gbl_table_lists[ACPI_TABLE_FADT].next; - acpi_tb_delete_single_table(table_desc); - - /* Install the new table */ - - table_desc->pointer = - ACPI_CAST_PTR(struct acpi_table_header, acpi_gbl_FADT); - table_desc->allocation = ACPI_MEM_ALLOCATED; - table_desc->length = sizeof(struct fadt_descriptor_rev2); - - /* Dump the entire FADT */ - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "Hex dump of common internal FADT, size %d (%X)\n", - acpi_gbl_FADT->length, acpi_gbl_FADT->length)); - ACPI_DUMP_BUFFER((u8 *) (acpi_gbl_FADT), acpi_gbl_FADT->length); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_build_common_facs - * - * PARAMETERS: table_info - Info for currently installed FACS - * - * RETURN: Status - * - * DESCRIPTION: Convert ACPI 1.0 and ACPI 2.0 FACS to a common internal - * table format. - * - ******************************************************************************/ - -acpi_status acpi_tb_build_common_facs(struct acpi_table_desc *table_info) -{ - - ACPI_FUNCTION_TRACE("tb_build_common_facs"); - - /* Absolute minimum length is 24, but the ACPI spec says 64 */ - - if (acpi_gbl_FACS->length < 24) { - ACPI_REPORT_ERROR(("Invalid FACS table length: 0x%X\n", - acpi_gbl_FACS->length)); - return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH); - } - - if (acpi_gbl_FACS->length < 64) { - ACPI_REPORT_WARNING(("FACS is shorter than the ACPI specification allows: 0x%X, using anyway\n", acpi_gbl_FACS->length)); - } - - /* Copy fields to the new FACS */ - - acpi_gbl_common_fACS.global_lock = &(acpi_gbl_FACS->global_lock); - - if ((acpi_gbl_RSDP->revision < 2) || - (acpi_gbl_FACS->length < 32) || - (!(acpi_gbl_FACS->xfirmware_waking_vector))) { - /* ACPI 1.0 FACS or short table or optional X_ field is zero */ - - acpi_gbl_common_fACS.firmware_waking_vector = ACPI_CAST_PTR(u64, - & - (acpi_gbl_FACS-> - firmware_waking_vector)); - acpi_gbl_common_fACS.vector_width = 32; - } else { - /* ACPI 2.0 FACS with valid X_ field */ - - acpi_gbl_common_fACS.firmware_waking_vector = - &acpi_gbl_FACS->xfirmware_waking_vector; - acpi_gbl_common_fACS.vector_width = 64; - } - - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/tables/tbget.c b/drivers/acpi/tables/tbget.c deleted file mode 100644 index 6acd5aeb093..00000000000 --- a/drivers/acpi/tables/tbget.c +++ /dev/null @@ -1,471 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbget - ACPI Table get* routines - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <acpi/acpi.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbget") - -/* Local prototypes */ -static acpi_status -acpi_tb_get_this_table(struct acpi_pointer *address, - struct acpi_table_header *header, - struct acpi_table_desc *table_info); - -static acpi_status -acpi_tb_table_override(struct acpi_table_header *header, - struct acpi_table_desc *table_info); - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_table - * - * PARAMETERS: Address - Address of table to retrieve. Can be - * Logical or Physical - * table_info - Where table info is returned - * - * RETURN: None - * - * DESCRIPTION: Get entire table of unknown size. - * - ******************************************************************************/ - -acpi_status -acpi_tb_get_table(struct acpi_pointer *address, - struct acpi_table_desc *table_info) -{ - acpi_status status; - struct acpi_table_header header; - - ACPI_FUNCTION_TRACE("tb_get_table"); - - /* Get the header in order to get signature and table size */ - - status = acpi_tb_get_table_header(address, &header); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the entire table */ - - status = acpi_tb_get_table_body(address, &header, table_info); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not get ACPI table (size %X), %s\n", - header.length, - acpi_format_exception(status))); - return_ACPI_STATUS(status); - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_table_header - * - * PARAMETERS: Address - Address of table to retrieve. Can be - * Logical or Physical - * return_header - Where the table header is returned - * - * RETURN: Status - * - * DESCRIPTION: Get an ACPI table header. Works in both physical or virtual - * addressing mode. Works with both physical or logical pointers. - * Table is either copied or mapped, depending on the pointer - * type and mode of the processor. - * - ******************************************************************************/ - -acpi_status -acpi_tb_get_table_header(struct acpi_pointer *address, - struct acpi_table_header *return_header) -{ - acpi_status status = AE_OK; - struct acpi_table_header *header = NULL; - - ACPI_FUNCTION_TRACE("tb_get_table_header"); - - /* - * Flags contains the current processor mode (Virtual or Physical - * addressing) The pointer_type is either Logical or Physical - */ - switch (address->pointer_type) { - case ACPI_PHYSMODE_PHYSPTR: - case ACPI_LOGMODE_LOGPTR: - - /* Pointer matches processor mode, copy the header */ - - ACPI_MEMCPY(return_header, address->pointer.logical, - sizeof(struct acpi_table_header)); - break; - - case ACPI_LOGMODE_PHYSPTR: - - /* Create a logical address for the physical pointer */ - - status = acpi_os_map_memory(address->pointer.physical, - sizeof(struct acpi_table_header), - (void *)&header); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not map memory at %8.8X%8.8X for length %X\n", ACPI_FORMAT_UINT64(address->pointer.physical), sizeof(struct acpi_table_header))); - return_ACPI_STATUS(status); - } - - /* Copy header and delete mapping */ - - ACPI_MEMCPY(return_header, header, - sizeof(struct acpi_table_header)); - acpi_os_unmap_memory(header, sizeof(struct acpi_table_header)); - break; - - default: - - ACPI_REPORT_ERROR(("Invalid address flags %X\n", - address->pointer_type)); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "Table Signature: [%4.4s]\n", - return_header->signature)); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_table_body - * - * PARAMETERS: Address - Address of table to retrieve. Can be - * Logical or Physical - * Header - Header of the table to retrieve - * table_info - Where the table info is returned - * - * RETURN: Status - * - * DESCRIPTION: Get an entire ACPI table with support to allow the host OS to - * replace the table with a newer version (table override.) - * Works in both physical or virtual - * addressing mode. Works with both physical or logical pointers. - * Table is either copied or mapped, depending on the pointer - * type and mode of the processor. - * - ******************************************************************************/ - -acpi_status -acpi_tb_get_table_body(struct acpi_pointer *address, - struct acpi_table_header *header, - struct acpi_table_desc *table_info) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE("tb_get_table_body"); - - if (!table_info || !address) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Attempt table override. */ - - status = acpi_tb_table_override(header, table_info); - if (ACPI_SUCCESS(status)) { - /* Table was overridden by the host OS */ - - return_ACPI_STATUS(status); - } - - /* No override, get the original table */ - - status = acpi_tb_get_this_table(address, header, table_info); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_table_override - * - * PARAMETERS: Header - Pointer to table header - * table_info - Return info if table is overridden - * - * RETURN: None - * - * DESCRIPTION: Attempts override of current table with a new one if provided - * by the host OS. - * - ******************************************************************************/ - -static acpi_status -acpi_tb_table_override(struct acpi_table_header *header, - struct acpi_table_desc *table_info) -{ - struct acpi_table_header *new_table; - acpi_status status; - struct acpi_pointer address; - - ACPI_FUNCTION_TRACE("tb_table_override"); - - /* - * The OSL will examine the header and decide whether to override this - * table. If it decides to override, a table will be returned in new_table, - * which we will then copy. - */ - status = acpi_os_table_override(header, &new_table); - if (ACPI_FAILURE(status)) { - /* Some severe error from the OSL, but we basically ignore it */ - - ACPI_REPORT_ERROR(("Could not override ACPI table, %s\n", - acpi_format_exception(status))); - return_ACPI_STATUS(status); - } - - if (!new_table) { - /* No table override */ - - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - - /* - * We have a new table to override the old one. Get a copy of - * the new one. We know that the new table has a logical pointer. - */ - address.pointer_type = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING; - address.pointer.logical = new_table; - - status = acpi_tb_get_this_table(&address, new_table, table_info); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not copy override ACPI table, %s\n", - acpi_format_exception(status))); - return_ACPI_STATUS(status); - } - - /* Copy the table info */ - - ACPI_REPORT_INFO(("Table [%4.4s] replaced by host OS\n", - table_info->pointer->signature)); - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_this_table - * - * PARAMETERS: Address - Address of table to retrieve. Can be - * Logical or Physical - * Header - Header of the table to retrieve - * table_info - Where the table info is returned - * - * RETURN: Status - * - * DESCRIPTION: Get an entire ACPI table. Works in both physical or virtual - * addressing mode. Works with both physical or logical pointers. - * Table is either copied or mapped, depending on the pointer - * type and mode of the processor. - * - ******************************************************************************/ - -static acpi_status -acpi_tb_get_this_table(struct acpi_pointer *address, - struct acpi_table_header *header, - struct acpi_table_desc *table_info) -{ - struct acpi_table_header *full_table = NULL; - u8 allocation; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE("tb_get_this_table"); - - /* - * Flags contains the current processor mode (Virtual or Physical - * addressing) The pointer_type is either Logical or Physical - */ - switch (address->pointer_type) { - case ACPI_PHYSMODE_PHYSPTR: - case ACPI_LOGMODE_LOGPTR: - - /* Pointer matches processor mode, copy the table to a new buffer */ - - full_table = ACPI_MEM_ALLOCATE(header->length); - if (!full_table) { - ACPI_REPORT_ERROR(("Could not allocate table memory for [%4.4s] length %X\n", header->signature, header->length)); - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Copy the entire table (including header) to the local buffer */ - - ACPI_MEMCPY(full_table, address->pointer.logical, - header->length); - - /* Save allocation type */ - - allocation = ACPI_MEM_ALLOCATED; - break; - - case ACPI_LOGMODE_PHYSPTR: - - /* - * Just map the table's physical memory - * into our address space. - */ - status = acpi_os_map_memory(address->pointer.physical, - (acpi_size) header->length, - (void *)&full_table); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not map memory for table [%4.4s] at %8.8X%8.8X for length %X\n", header->signature, ACPI_FORMAT_UINT64(address->pointer.physical), header->length)); - return (status); - } - - /* Save allocation type */ - - allocation = ACPI_MEM_MAPPED; - break; - - default: - - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Invalid address flags %X\n", - address->pointer_type)); - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * Validate checksum for _most_ tables, - * even the ones whose signature we don't recognize - */ - if (table_info->type != ACPI_TABLE_FACS) { - status = acpi_tb_verify_table_checksum(full_table); - -#if (!ACPI_CHECKSUM_ABORT) - if (ACPI_FAILURE(status)) { - /* Ignore the error if configuration says so */ - - status = AE_OK; - } -#endif - } - - /* Return values */ - - table_info->pointer = full_table; - table_info->length = (acpi_size) header->length; - table_info->allocation = allocation; - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Found table [%4.4s] at %8.8X%8.8X, mapped/copied to %p\n", - full_table->signature, - ACPI_FORMAT_UINT64(address->pointer.physical), - full_table)); - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_table_ptr - * - * PARAMETERS: table_type - one of the defined table types - * Instance - Which table of this type - * table_ptr_loc - pointer to location to place the pointer for - * return - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get the pointer to an ACPI table. - * - ******************************************************************************/ - -acpi_status -acpi_tb_get_table_ptr(acpi_table_type table_type, - u32 instance, struct acpi_table_header **table_ptr_loc) -{ - struct acpi_table_desc *table_desc; - u32 i; - - ACPI_FUNCTION_TRACE("tb_get_table_ptr"); - - if (!acpi_gbl_DSDT) { - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - - if (table_type > ACPI_TABLE_MAX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * For all table types (Single/Multiple), the first - * instance is always in the list head. - */ - if (instance == 1) { - /* Get the first */ - - *table_ptr_loc = NULL; - if (acpi_gbl_table_lists[table_type].next) { - *table_ptr_loc = - acpi_gbl_table_lists[table_type].next->pointer; - } - return_ACPI_STATUS(AE_OK); - } - - /* Check for instance out of range */ - - if (instance > acpi_gbl_table_lists[table_type].count) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Walk the list to get the desired table - * Since the if (Instance == 1) check above checked for the - * first table, setting table_desc equal to the .Next member - * is actually pointing to the second table. Therefore, we - * need to walk from the 2nd table until we reach the Instance - * that the user is looking for and return its table pointer. - */ - table_desc = acpi_gbl_table_lists[table_type].next; - for (i = 2; i < instance; i++) { - table_desc = table_desc->next; - } - - /* We are now pointing to the requested table's descriptor */ - - *table_ptr_loc = table_desc->pointer; - - return_ACPI_STATUS(AE_OK); -} diff --git a/drivers/acpi/tables/tbgetall.c b/drivers/acpi/tables/tbgetall.c deleted file mode 100644 index 8d72343537e..00000000000 --- a/drivers/acpi/tables/tbgetall.c +++ /dev/null @@ -1,301 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbgetall - Get all required ACPI tables - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <acpi/acpi.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbgetall") - -/* Local prototypes */ -static acpi_status -acpi_tb_get_primary_table(struct acpi_pointer *address, - struct acpi_table_desc *table_info); - -static acpi_status -acpi_tb_get_secondary_table(struct acpi_pointer *address, - acpi_string signature, - struct acpi_table_desc *table_info); - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_primary_table - * - * PARAMETERS: Address - Physical address of table to retrieve - * *table_info - Where the table info is returned - * - * RETURN: Status - * - * DESCRIPTION: Maps the physical address of table into a logical address - * - ******************************************************************************/ - -static acpi_status -acpi_tb_get_primary_table(struct acpi_pointer *address, - struct acpi_table_desc *table_info) -{ - acpi_status status; - struct acpi_table_header header; - - ACPI_FUNCTION_TRACE("tb_get_primary_table"); - - /* Ignore a NULL address in the RSDT */ - - if (!address->pointer.value) { - return_ACPI_STATUS(AE_OK); - } - - /* Get the header in order to get signature and table size */ - - status = acpi_tb_get_table_header(address, &header); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Clear the table_info */ - - ACPI_MEMSET(table_info, 0, sizeof(struct acpi_table_desc)); - - /* - * Check the table signature and make sure it is recognized. - * Also checks the header checksum - */ - table_info->pointer = &header; - status = acpi_tb_recognize_table(table_info, ACPI_TABLE_PRIMARY); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the entire table */ - - status = acpi_tb_get_table_body(address, &header, table_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Install the table */ - - status = acpi_tb_install_table(table_info); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_secondary_table - * - * PARAMETERS: Address - Physical address of table to retrieve - * *table_info - Where the table info is returned - * - * RETURN: Status - * - * DESCRIPTION: Maps the physical address of table into a logical address - * - ******************************************************************************/ - -static acpi_status -acpi_tb_get_secondary_table(struct acpi_pointer *address, - acpi_string signature, - struct acpi_table_desc *table_info) -{ - acpi_status status; - struct acpi_table_header header; - - ACPI_FUNCTION_TRACE_STR("tb_get_secondary_table", signature); - - /* Get the header in order to match the signature */ - - status = acpi_tb_get_table_header(address, &header); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Signature must match request */ - - if (ACPI_STRNCMP(header.signature, signature, ACPI_NAME_SIZE)) { - ACPI_REPORT_ERROR(("Incorrect table signature - wanted [%s] found [%4.4s]\n", signature, header.signature)); - return_ACPI_STATUS(AE_BAD_SIGNATURE); - } - - /* - * Check the table signature and make sure it is recognized. - * Also checks the header checksum - */ - table_info->pointer = &header; - status = acpi_tb_recognize_table(table_info, ACPI_TABLE_SECONDARY); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the entire table */ - - status = acpi_tb_get_table_body(address, &header, table_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Install the table */ - - status = acpi_tb_install_table(table_info); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_required_tables - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load and validate tables other than the RSDT. The RSDT must - * already be loaded and validated. - * - * Get the minimum set of ACPI tables, namely: - * - * 1) FADT (via RSDT in loop below) - * 2) FACS (via FADT) - * 3) DSDT (via FADT) - * - ******************************************************************************/ - -acpi_status acpi_tb_get_required_tables(void) -{ - acpi_status status = AE_OK; - u32 i; - struct acpi_table_desc table_info; - struct acpi_pointer address; - - ACPI_FUNCTION_TRACE("tb_get_required_tables"); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%d ACPI tables in RSDT\n", - acpi_gbl_rsdt_table_count)); - - address.pointer_type = acpi_gbl_table_flags | ACPI_LOGICAL_ADDRESSING; - - /* - * Loop through all table pointers found in RSDT. - * This will NOT include the FACS and DSDT - we must get - * them after the loop. - * - * The only tables we are interested in getting here is the FADT and - * any SSDTs. - */ - for (i = 0; i < acpi_gbl_rsdt_table_count; i++) { - /* Get the table address from the common internal XSDT */ - - address.pointer.value = acpi_gbl_XSDT->table_offset_entry[i]; - - /* - * Get the tables needed by this subsystem (FADT and any SSDTs). - * NOTE: All other tables are completely ignored at this time. - */ - status = acpi_tb_get_primary_table(&address, &table_info); - if ((status != AE_OK) && (status != AE_TABLE_NOT_SUPPORTED)) { - ACPI_REPORT_WARNING(("%s, while getting table at %8.8X%8.8X\n", acpi_format_exception(status), ACPI_FORMAT_UINT64(address.pointer.value))); - } - } - - /* We must have a FADT to continue */ - - if (!acpi_gbl_FADT) { - ACPI_REPORT_ERROR(("No FADT present in RSDT/XSDT\n")); - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - - /* - * Convert the FADT to a common format. This allows earlier revisions of - * the table to coexist with newer versions, using common access code. - */ - status = acpi_tb_convert_table_fadt(); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not convert FADT to internal common format\n")); - return_ACPI_STATUS(status); - } - - /* Get the FACS (Pointed to by the FADT) */ - - address.pointer.value = acpi_gbl_FADT->xfirmware_ctrl; - - status = acpi_tb_get_secondary_table(&address, FACS_SIG, &table_info); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not get/install the FACS, %s\n", - acpi_format_exception(status))); - return_ACPI_STATUS(status); - } - - /* - * Create the common FACS pointer table - * (Contains pointers to the original table) - */ - status = acpi_tb_build_common_facs(&table_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get/install the DSDT (Pointed to by the FADT) */ - - address.pointer.value = acpi_gbl_FADT->Xdsdt; - - status = acpi_tb_get_secondary_table(&address, DSDT_SIG, &table_info); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not get/install the DSDT\n")); - return_ACPI_STATUS(status); - } - - /* Set Integer Width (32/64) based upon DSDT revision */ - - acpi_ut_set_integer_width(acpi_gbl_DSDT->revision); - - /* Dump the entire DSDT */ - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "Hex dump of entire DSDT, size %d (0x%X), Integer width = %d\n", - acpi_gbl_DSDT->length, acpi_gbl_DSDT->length, - acpi_gbl_integer_bit_width)); - ACPI_DUMP_BUFFER((u8 *) acpi_gbl_DSDT, acpi_gbl_DSDT->length); - - /* Always delete the RSDP mapping, we are done with it */ - - acpi_tb_delete_tables_by_type(ACPI_TABLE_RSDP); - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c deleted file mode 100644 index 10db8484e46..00000000000 --- a/drivers/acpi/tables/tbinstal.c +++ /dev/null @@ -1,538 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbinstal - ACPI table installation and removal - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <acpi/acpi.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbinstal") - -/* Local prototypes */ -static acpi_status -acpi_tb_match_signature(char *signature, - struct acpi_table_desc *table_info, u8 search_type); - -/******************************************************************************* - * - * FUNCTION: acpi_tb_match_signature - * - * PARAMETERS: Signature - Table signature to match - * table_info - Return data - * search_type - Table type to match (primary/secondary) - * - * RETURN: Status - * - * DESCRIPTION: Compare signature against the list of "ACPI-subsystem-owned" - * tables (DSDT/FADT/SSDT, etc.) Returns the table_type_iD on match. - * - ******************************************************************************/ - -static acpi_status -acpi_tb_match_signature(char *signature, - struct acpi_table_desc *table_info, u8 search_type) -{ - acpi_native_uint i; - - ACPI_FUNCTION_TRACE("tb_match_signature"); - - /* Search for a signature match among the known table types */ - - for (i = 0; i < NUM_ACPI_TABLE_TYPES; i++) { - if (!(acpi_gbl_table_data[i].flags & search_type)) { - continue; - } - - if (!ACPI_STRNCMP(signature, acpi_gbl_table_data[i].signature, - acpi_gbl_table_data[i].sig_length)) { - /* Found a signature match, return index if requested */ - - if (table_info) { - table_info->type = (u8) i; - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Table [%4.4s] is an ACPI table consumed by the core subsystem\n", - (char *)acpi_gbl_table_data[i]. - signature)); - - return_ACPI_STATUS(AE_OK); - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Table [%4.4s] is not an ACPI table consumed by the core subsystem - ignored\n", - (char *)signature)); - - return_ACPI_STATUS(AE_TABLE_NOT_SUPPORTED); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_install_table - * - * PARAMETERS: table_info - Return value from acpi_tb_get_table_body - * - * RETURN: Status - * - * DESCRIPTION: Install the table into the global data structures. - * - ******************************************************************************/ - -acpi_status acpi_tb_install_table(struct acpi_table_desc *table_info) -{ - acpi_status status; - - ACPI_FUNCTION_TRACE("tb_install_table"); - - /* Lock tables while installing */ - - status = acpi_ut_acquire_mutex(ACPI_MTX_TABLES); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not acquire table mutex, %s\n", - acpi_format_exception(status))); - return_ACPI_STATUS(status); - } - - /* - * Ignore a table that is already installed. For example, some BIOS - * ASL code will repeatedly attempt to load the same SSDT. - */ - status = acpi_tb_is_table_installed(table_info); - if (ACPI_FAILURE(status)) { - goto unlock_and_exit; - } - - /* Install the table into the global data structure */ - - status = acpi_tb_init_table_descriptor(table_info->type, table_info); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("Could not install table [%4.4s], %s\n", - table_info->pointer->signature, - acpi_format_exception(status))); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s located at %p\n", - acpi_gbl_table_data[table_info->type].name, - table_info->pointer)); - - unlock_and_exit: - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_recognize_table - * - * PARAMETERS: table_info - Return value from acpi_tb_get_table_body - * search_type - Table type to match (primary/secondary) - * - * RETURN: Status - * - * DESCRIPTION: Check a table signature for a match against known table types - * - * NOTE: All table pointers are validated as follows: - * 1) Table pointer must point to valid physical memory - * 2) Signature must be 4 ASCII chars, even if we don't recognize the - * name - * 3) Table must be readable for length specified in the header - * 4) Table checksum must be valid (with the exception of the FACS - * which has no checksum for some odd reason) - * - ******************************************************************************/ - -acpi_status -acpi_tb_recognize_table(struct acpi_table_desc *table_info, u8 search_type) -{ - struct acpi_table_header *table_header; - acpi_status status; - - ACPI_FUNCTION_TRACE("tb_recognize_table"); - - /* Ensure that we have a valid table pointer */ - - table_header = (struct acpi_table_header *)table_info->pointer; - if (!table_header) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* - * We only "recognize" a limited number of ACPI tables -- namely, the - * ones that are used by the subsystem (DSDT, FADT, etc.) - * - * An AE_TABLE_NOT_SUPPORTED means that the table was not recognized. - * This can be any one of many valid ACPI tables, it just isn't one of - * the tables that is consumed by the core subsystem - */ - status = acpi_tb_match_signature(table_header->signature, - table_info, search_type); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - status = acpi_tb_validate_table_header(table_header); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Return the table type and length via the info struct */ - - table_info->length = (acpi_size) table_header->length; - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_init_table_descriptor - * - * PARAMETERS: table_type - The type of the table - * table_info - A table info struct - * - * RETURN: None. - * - * DESCRIPTION: Install a table into the global data structs. - * - ******************************************************************************/ - -acpi_status -acpi_tb_init_table_descriptor(acpi_table_type table_type, - struct acpi_table_desc *table_info) -{ - struct acpi_table_list *list_head; - struct acpi_table_desc *table_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE_U32("tb_init_table_descriptor", table_type); - - /* Allocate a descriptor for this table */ - - table_desc = ACPI_MEM_CALLOCATE(sizeof(struct acpi_table_desc)); - if (!table_desc) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Get a new owner ID for the table */ - - status = acpi_ut_allocate_owner_id(&table_desc->owner_id); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Install the table into the global data structure */ - - list_head = &acpi_gbl_table_lists[table_type]; - - /* - * Two major types of tables: 1) Only one instance is allowed. This - * includes most ACPI tables such as the DSDT. 2) Multiple instances of - * the table are allowed. This includes SSDT and PSDTs. - */ - if (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags)) { - /* - * Only one table allowed, and a table has alread been installed - * at this location, so return an error. - */ - if (list_head->next) { - ACPI_MEM_FREE(table_desc); - return_ACPI_STATUS(AE_ALREADY_EXISTS); - } - - table_desc->next = list_head->next; - list_head->next = table_desc; - - if (table_desc->next) { - table_desc->next->prev = table_desc; - } - - list_head->count++; - } else { - /* - * Link the new table in to the list of tables of this type. - * Insert at the end of the list, order IS IMPORTANT. - * - * table_desc->Prev & Next are already NULL from calloc() - */ - list_head->count++; - - if (!list_head->next) { - list_head->next = table_desc; - } else { - table_desc->next = list_head->next; - - while (table_desc->next->next) { - table_desc->next = table_desc->next->next; - } - - table_desc->next->next = table_desc; - table_desc->prev = table_desc->next; - table_desc->next = NULL; - } - } - - /* Finish initialization of the table descriptor */ - - table_desc->type = (u8) table_type; - table_desc->pointer = table_info->pointer; - table_desc->length = table_info->length; - table_desc->allocation = table_info->allocation; - table_desc->aml_start = (u8 *) (table_desc->pointer + 1), - table_desc->aml_length = (u32) (table_desc->length - - (u32) sizeof(struct - acpi_table_header)); - table_desc->loaded_into_namespace = FALSE; - - /* - * Set the appropriate global pointer (if there is one) to point to the - * newly installed table - */ - if (acpi_gbl_table_data[table_type].global_ptr) { - *(acpi_gbl_table_data[table_type].global_ptr) = - table_info->pointer; - } - - /* Return Data */ - - table_info->owner_id = table_desc->owner_id; - table_info->installed_desc = table_desc; - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_all_tables - * - * PARAMETERS: None. - * - * RETURN: None. - * - * DESCRIPTION: Delete all internal ACPI tables - * - ******************************************************************************/ - -void acpi_tb_delete_all_tables(void) -{ - acpi_table_type type; - - /* - * Free memory allocated for ACPI tables - * Memory can either be mapped or allocated - */ - for (type = 0; type < NUM_ACPI_TABLE_TYPES; type++) { - acpi_tb_delete_tables_by_type(type); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_tables_by_type - * - * PARAMETERS: Type - The table type to be deleted - * - * RETURN: None. - * - * DESCRIPTION: Delete an internal ACPI table - * Locks the ACPI table mutex - * - ******************************************************************************/ - -void acpi_tb_delete_tables_by_type(acpi_table_type type) -{ - struct acpi_table_desc *table_desc; - u32 count; - u32 i; - - ACPI_FUNCTION_TRACE_U32("tb_delete_tables_by_type", type); - - if (type > ACPI_TABLE_MAX) { - return_VOID; - } - - if (ACPI_FAILURE(acpi_ut_acquire_mutex(ACPI_MTX_TABLES))) { - return; - } - - /* Clear the appropriate "typed" global table pointer */ - - switch (type) { - case ACPI_TABLE_RSDP: - acpi_gbl_RSDP = NULL; - break; - - case ACPI_TABLE_DSDT: - acpi_gbl_DSDT = NULL; - break; - - case ACPI_TABLE_FADT: - acpi_gbl_FADT = NULL; - break; - - case ACPI_TABLE_FACS: - acpi_gbl_FACS = NULL; - break; - - case ACPI_TABLE_XSDT: - acpi_gbl_XSDT = NULL; - break; - - case ACPI_TABLE_SSDT: - case ACPI_TABLE_PSDT: - default: - break; - } - - /* - * Free the table - * 1) Get the head of the list - */ - table_desc = acpi_gbl_table_lists[type].next; - count = acpi_gbl_table_lists[type].count; - - /* - * 2) Walk the entire list, deleting both the allocated tables - * and the table descriptors - */ - for (i = 0; i < count; i++) { - table_desc = acpi_tb_uninstall_table(table_desc); - } - - (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); - return_VOID; -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_delete_single_table - * - * PARAMETERS: table_info - A table info struct - * - * RETURN: None. - * - * DESCRIPTION: Low-level free for a single ACPI table. Handles cases where - * the table was allocated a buffer or was mapped. - * - ******************************************************************************/ - -void acpi_tb_delete_single_table(struct acpi_table_desc *table_desc) -{ - - /* Must have a valid table descriptor and pointer */ - - if ((!table_desc) || (!table_desc->pointer)) { - return; - } - - /* Valid table, determine type of memory allocation */ - - switch (table_desc->allocation) { - case ACPI_MEM_NOT_ALLOCATED: - break; - - case ACPI_MEM_ALLOCATED: - - ACPI_MEM_FREE(table_desc->pointer); - break; - - case ACPI_MEM_MAPPED: - - acpi_os_unmap_memory(table_desc->pointer, table_desc->length); - break; - - default: - break; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_uninstall_table - * - * PARAMETERS: table_info - A table info struct - * - * RETURN: Pointer to the next table in the list (of same type) - * - * DESCRIPTION: Free the memory associated with an internal ACPI table that - * is either installed or has never been installed. - * Table mutex should be locked. - * - ******************************************************************************/ - -struct acpi_table_desc *acpi_tb_uninstall_table(struct acpi_table_desc - *table_desc) -{ - struct acpi_table_desc *next_desc; - - ACPI_FUNCTION_TRACE_PTR("tb_uninstall_table", table_desc); - - if (!table_desc) { - return_PTR(NULL); - } - - /* Unlink the descriptor from the doubly linked list */ - - if (table_desc->prev) { - table_desc->prev->next = table_desc->next; - } else { - /* Is first on list, update list head */ - - acpi_gbl_table_lists[table_desc->type].next = table_desc->next; - } - - if (table_desc->next) { - table_desc->next->prev = table_desc->prev; - } - - /* Free the memory allocated for the table itself */ - - acpi_tb_delete_single_table(table_desc); - - /* Free the table descriptor */ - - next_desc = table_desc->next; - ACPI_MEM_FREE(table_desc); - - /* Return pointer to the next descriptor */ - - return_PTR(next_desc); -} diff --git a/drivers/acpi/tables/tbrsdt.c b/drivers/acpi/tables/tbrsdt.c deleted file mode 100644 index ad0252c2f7d..00000000000 --- a/drivers/acpi/tables/tbrsdt.c +++ /dev/null @@ -1,288 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbrsdt - ACPI RSDT table utilities - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <acpi/acpi.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbrsdt") - -/******************************************************************************* - * - * FUNCTION: acpi_tb_verify_rsdp - * - * PARAMETERS: Address - RSDP (Pointer to RSDT) - * - * RETURN: Status - * - * DESCRIPTION: Load and validate the RSDP (ptr) and RSDT (table) - * - ******************************************************************************/ -acpi_status acpi_tb_verify_rsdp(struct acpi_pointer *address) -{ - struct acpi_table_desc table_info; - acpi_status status; - struct rsdp_descriptor *rsdp; - - ACPI_FUNCTION_TRACE("tb_verify_rsdp"); - - switch (address->pointer_type) { - case ACPI_LOGICAL_POINTER: - - rsdp = address->pointer.logical; - break; - - case ACPI_PHYSICAL_POINTER: - /* - * Obtain access to the RSDP structure - */ - status = acpi_os_map_memory(address->pointer.physical, - sizeof(struct rsdp_descriptor), - (void *)&rsdp); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - break; - - default: - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Verify RSDP signature and checksum */ - - status = acpi_tb_validate_rsdp(rsdp); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* The RSDP supplied is OK */ - - table_info.pointer = ACPI_CAST_PTR(struct acpi_table_header, rsdp); - table_info.length = sizeof(struct rsdp_descriptor); - table_info.allocation = ACPI_MEM_MAPPED; - - /* Save the table pointers and allocation info */ - - status = acpi_tb_init_table_descriptor(ACPI_TABLE_RSDP, &table_info); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Save the RSDP in a global for easy access */ - - acpi_gbl_RSDP = - ACPI_CAST_PTR(struct rsdp_descriptor, table_info.pointer); - return_ACPI_STATUS(status); - - /* Error exit */ - cleanup: - - if (acpi_gbl_table_flags & ACPI_PHYSICAL_POINTER) { - acpi_os_unmap_memory(rsdp, sizeof(struct rsdp_descriptor)); - } - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_rsdt_address - * - * PARAMETERS: out_address - Where the address is returned - * - * RETURN: None, Address - * - * DESCRIPTION: Extract the address of either the RSDT or XSDT, depending on the - * version of the RSDP and whether the XSDT pointer is valid - * - ******************************************************************************/ - -void acpi_tb_get_rsdt_address(struct acpi_pointer *out_address) -{ - - ACPI_FUNCTION_ENTRY(); - - out_address->pointer_type = - acpi_gbl_table_flags | ACPI_LOGICAL_ADDRESSING; - - /* Use XSDT if it is present */ - - if ((acpi_gbl_RSDP->revision >= 2) && - acpi_gbl_RSDP->xsdt_physical_address) { - out_address->pointer.value = - acpi_gbl_RSDP->xsdt_physical_address; - acpi_gbl_root_table_type = ACPI_TABLE_TYPE_XSDT; - } else { - /* No XSDT, use the RSDT */ - - out_address->pointer.value = - acpi_gbl_RSDP->rsdt_physical_address; - acpi_gbl_root_table_type = ACPI_TABLE_TYPE_RSDT; - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_rsdt - * - * PARAMETERS: table_ptr - Addressable pointer to the RSDT. - * - * RETURN: Status - * - * DESCRIPTION: Validate signature for the RSDT or XSDT - * - ******************************************************************************/ - -acpi_status acpi_tb_validate_rsdt(struct acpi_table_header *table_ptr) -{ - int no_match; - - ACPI_FUNCTION_NAME("tb_validate_rsdt"); - - /* - * Search for appropriate signature, RSDT or XSDT - */ - if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { - no_match = ACPI_STRNCMP((char *)table_ptr, RSDT_SIG, - sizeof(RSDT_SIG) - 1); - } else { - no_match = ACPI_STRNCMP((char *)table_ptr, XSDT_SIG, - sizeof(XSDT_SIG) - 1); - } - - if (no_match) { - /* Invalid RSDT or XSDT signature */ - - ACPI_REPORT_ERROR(("Invalid signature where RSDP indicates RSDT/XSDT should be located\n")); - - ACPI_DUMP_BUFFER(acpi_gbl_RSDP, 20); - - ACPI_DEBUG_PRINT_RAW((ACPI_DB_ERROR, - "RSDT/XSDT signature at %X (%p) is invalid\n", - acpi_gbl_RSDP->rsdt_physical_address, - (void *)(acpi_native_uint) acpi_gbl_RSDP-> - rsdt_physical_address)); - - if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { - ACPI_REPORT_ERROR(("Looking for RSDT\n")) - } else { - ACPI_REPORT_ERROR(("Looking for XSDT\n")) - } - - ACPI_DUMP_BUFFER((char *)table_ptr, 48); - - return (AE_BAD_SIGNATURE); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_get_table_rsdt - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: Load and validate the RSDP (ptr) and RSDT (table) - * - ******************************************************************************/ - -acpi_status acpi_tb_get_table_rsdt(void) -{ - struct acpi_table_desc table_info; - acpi_status status; - struct acpi_pointer address; - - ACPI_FUNCTION_TRACE("tb_get_table_rsdt"); - - /* Get the RSDT/XSDT via the RSDP */ - - acpi_tb_get_rsdt_address(&address); - - table_info.type = ACPI_TABLE_XSDT; - status = acpi_tb_get_table(&address, &table_info); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Could not get the RSDT/XSDT, %s\n", - acpi_format_exception(status))); - - return_ACPI_STATUS(status); - } - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "RSDP located at %p, points to RSDT physical=%8.8X%8.8X \n", - acpi_gbl_RSDP, - ACPI_FORMAT_UINT64(address.pointer.value))); - - /* Check the RSDT or XSDT signature */ - - status = acpi_tb_validate_rsdt(table_info.pointer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the number of tables defined in the RSDT or XSDT */ - - acpi_gbl_rsdt_table_count = acpi_tb_get_table_count(acpi_gbl_RSDP, - table_info.pointer); - - /* Convert and/or copy to an XSDT structure */ - - status = acpi_tb_convert_to_xsdt(&table_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Save the table pointers and allocation info */ - - status = acpi_tb_init_table_descriptor(ACPI_TABLE_XSDT, &table_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - acpi_gbl_XSDT = ACPI_CAST_PTR(XSDT_DESCRIPTOR, table_info.pointer); - - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "XSDT located at %p\n", acpi_gbl_XSDT)); - return_ACPI_STATUS(status); -} diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c deleted file mode 100644 index 4b2fbb592f4..00000000000 --- a/drivers/acpi/tables/tbutils.c +++ /dev/null @@ -1,299 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbutils - Table manipulation utilities - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <acpi/acpi.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbutils") - -/* Local prototypes */ -#ifdef ACPI_OBSOLETE_FUNCTIONS -acpi_status -acpi_tb_handle_to_object(u16 table_id, struct acpi_table_desc **table_desc); -#endif - -/******************************************************************************* - * - * FUNCTION: acpi_tb_is_table_installed - * - * PARAMETERS: new_table_desc - Descriptor for new table being installed - * - * RETURN: Status - AE_ALREADY_EXISTS if the table is already installed - * - * DESCRIPTION: Determine if an ACPI table is already installed - * - * MUTEX: Table data structures should be locked - * - ******************************************************************************/ - -acpi_status acpi_tb_is_table_installed(struct acpi_table_desc *new_table_desc) -{ - struct acpi_table_desc *table_desc; - - ACPI_FUNCTION_TRACE("tb_is_table_installed"); - - /* Get the list descriptor and first table descriptor */ - - table_desc = acpi_gbl_table_lists[new_table_desc->type].next; - - /* Examine all installed tables of this type */ - - while (table_desc) { - /* - * If the table lengths match, perform a full bytewise compare. This - * means that we will allow tables with duplicate oem_table_id(s), as - * long as the tables are different in some way. - * - * Checking if the table has been loaded into the namespace means that - * we don't check for duplicate tables during the initial installation - * of tables within the RSDT/XSDT. - */ - if ((table_desc->loaded_into_namespace) && - (table_desc->pointer->length == - new_table_desc->pointer->length) - && - (!ACPI_MEMCMP - ((const char *)table_desc->pointer, - (const char *)new_table_desc->pointer, - (acpi_size) new_table_desc->pointer->length))) { - /* Match: this table is already installed */ - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, - "Table [%4.4s] already installed: Rev %X oem_table_id [%8.8s]\n", - new_table_desc->pointer->signature, - new_table_desc->pointer->revision, - new_table_desc->pointer-> - oem_table_id)); - - new_table_desc->owner_id = table_desc->owner_id; - new_table_desc->installed_desc = table_desc; - - return_ACPI_STATUS(AE_ALREADY_EXISTS); - } - - /* Get next table on the list */ - - table_desc = table_desc->next; - } - - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_table_header - * - * PARAMETERS: table_header - Logical pointer to the table - * - * RETURN: Status - * - * DESCRIPTION: Check an ACPI table header for validity - * - * NOTE: Table pointers are validated as follows: - * 1) Table pointer must point to valid physical memory - * 2) Signature must be 4 ASCII chars, even if we don't recognize the - * name - * 3) Table must be readable for length specified in the header - * 4) Table checksum must be valid (with the exception of the FACS - * which has no checksum because it contains variable fields) - * - ******************************************************************************/ - -acpi_status -acpi_tb_validate_table_header(struct acpi_table_header *table_header) -{ - acpi_name signature; - - ACPI_FUNCTION_NAME("tb_validate_table_header"); - - /* Verify that this is a valid address */ - - if (!acpi_os_readable(table_header, sizeof(struct acpi_table_header))) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Cannot read table header at %p\n", - table_header)); - - return (AE_BAD_ADDRESS); - } - - /* Ensure that the signature is 4 ASCII characters */ - - ACPI_MOVE_32_TO_32(&signature, table_header->signature); - if (!acpi_ut_valid_acpi_name(signature)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Table signature at %p [%p] has invalid characters\n", - table_header, &signature)); - - ACPI_REPORT_WARNING(("Invalid table signature found: [%4.4s]\n", - (char *)&signature)); - - ACPI_DUMP_BUFFER(table_header, - sizeof(struct acpi_table_header)); - return (AE_BAD_SIGNATURE); - } - - /* Validate the table length */ - - if (table_header->length < sizeof(struct acpi_table_header)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Invalid length in table header %p name %4.4s\n", - table_header, (char *)&signature)); - - ACPI_REPORT_WARNING(("Invalid table header length (0x%X) found\n", (u32) table_header->length)); - - ACPI_DUMP_BUFFER(table_header, - sizeof(struct acpi_table_header)); - return (AE_BAD_HEADER); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_verify_table_checksum - * - * PARAMETERS: *table_header - ACPI table to verify - * - * RETURN: 8 bit checksum of table - * - * DESCRIPTION: Does an 8 bit checksum of table and returns status. A correct - * table should have a checksum of 0. - * - ******************************************************************************/ - -acpi_status -acpi_tb_verify_table_checksum(struct acpi_table_header * table_header) -{ - u8 checksum; - acpi_status status = AE_OK; - - ACPI_FUNCTION_TRACE("tb_verify_table_checksum"); - - /* Compute the checksum on the table */ - - checksum = - acpi_tb_generate_checksum(table_header, table_header->length); - - /* Return the appropriate exception */ - - if (checksum) { - ACPI_REPORT_WARNING(("Invalid checksum in table [%4.4s] (%02X, sum %02X is not zero)\n", table_header->signature, (u32) table_header->checksum, (u32) checksum)); - - status = AE_BAD_CHECKSUM; - } - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_generate_checksum - * - * PARAMETERS: Buffer - Buffer to checksum - * Length - Size of the buffer - * - * RETURN: 8 bit checksum of buffer - * - * DESCRIPTION: Computes an 8 bit checksum of the buffer(length) and returns it. - * - ******************************************************************************/ - -u8 acpi_tb_generate_checksum(void *buffer, u32 length) -{ - const u8 *limit; - const u8 *rover; - u8 sum = 0; - - if (buffer && length) { - /* Buffer and Length are valid */ - - limit = (u8 *) buffer + length; - - for (rover = buffer; rover < limit; rover++) { - sum = (u8) (sum + *rover); - } - } - return (sum); -} - -#ifdef ACPI_OBSOLETE_FUNCTIONS -/******************************************************************************* - * - * FUNCTION: acpi_tb_handle_to_object - * - * PARAMETERS: table_id - Id for which the function is searching - * table_desc - Pointer to return the matching table - * descriptor. - * - * RETURN: Search the tables to find one with a matching table_id and - * return a pointer to that table descriptor. - * - ******************************************************************************/ - -acpi_status -acpi_tb_handle_to_object(u16 table_id, - struct acpi_table_desc ** return_table_desc) -{ - u32 i; - struct acpi_table_desc *table_desc; - - ACPI_FUNCTION_NAME("tb_handle_to_object"); - - for (i = 0; i < ACPI_TABLE_MAX; i++) { - table_desc = acpi_gbl_table_lists[i].next; - while (table_desc) { - if (table_desc->table_id == table_id) { - *return_table_desc = table_desc; - return (AE_OK); - } - - table_desc = table_desc->next; - } - } - - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "table_id=%X does not exist\n", - table_id)); - return (AE_BAD_PARAMETER); -} -#endif diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c deleted file mode 100644 index 3f96a4909aa..00000000000 --- a/drivers/acpi/tables/tbxface.c +++ /dev/null @@ -1,422 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbxface - Public interfaces to the ACPI subsystem - * ACPI table oriented interfaces - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <linux/module.h> - -#include <acpi/acpi.h> -#include <acpi/acnamesp.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbxface") - -/******************************************************************************* - * - * FUNCTION: acpi_load_tables - * - * PARAMETERS: None - * - * RETURN: Status - * - * DESCRIPTION: This function is called to load the ACPI tables from the - * provided RSDT - * - ******************************************************************************/ -acpi_status acpi_load_tables(void) -{ - struct acpi_pointer rsdp_address; - acpi_status status; - - ACPI_FUNCTION_TRACE("acpi_load_tables"); - - /* Get the RSDP */ - - status = acpi_os_get_root_pointer(ACPI_LOGICAL_ADDRESSING, - &rsdp_address); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("acpi_load_tables: Could not get RSDP, %s\n", - acpi_format_exception(status))); - goto error_exit; - } - - /* Map and validate the RSDP */ - - acpi_gbl_table_flags = rsdp_address.pointer_type; - - status = acpi_tb_verify_rsdp(&rsdp_address); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("acpi_load_tables: RSDP Failed validation: %s\n", acpi_format_exception(status))); - goto error_exit; - } - - /* Get the RSDT via the RSDP */ - - status = acpi_tb_get_table_rsdt(); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("acpi_load_tables: Could not load RSDT: %s\n", acpi_format_exception(status))); - goto error_exit; - } - - /* Now get the tables needed by this subsystem (FADT, DSDT, etc.) */ - - status = acpi_tb_get_required_tables(); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("acpi_load_tables: Error getting required tables (DSDT/FADT/FACS): %s\n", acpi_format_exception(status))); - goto error_exit; - } - - ACPI_DEBUG_PRINT((ACPI_DB_INIT, "ACPI Tables successfully acquired\n")); - - /* Load the namespace from the tables */ - - status = acpi_ns_load_namespace(); - if (ACPI_FAILURE(status)) { - ACPI_REPORT_ERROR(("acpi_load_tables: Could not load namespace: %s\n", acpi_format_exception(status))); - goto error_exit; - } - - return_ACPI_STATUS(AE_OK); - - error_exit: - ACPI_REPORT_ERROR(("acpi_load_tables: Could not load tables: %s\n", - acpi_format_exception(status))); - - return_ACPI_STATUS(status); -} - -#ifdef ACPI_FUTURE_USAGE -/******************************************************************************* - * - * 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; - struct acpi_table_desc table_info; - struct acpi_pointer address; - - ACPI_FUNCTION_TRACE("acpi_load_table"); - - if (!table_ptr) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Copy the table to a local buffer */ - - address.pointer_type = ACPI_LOGICAL_POINTER | ACPI_LOGICAL_ADDRESSING; - address.pointer.logical = table_ptr; - - status = acpi_tb_get_table_body(&address, table_ptr, &table_info); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Check signature for a valid table type */ - - status = acpi_tb_recognize_table(&table_info, ACPI_TABLE_ALL); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Install the new table into the local data structures */ - - status = acpi_tb_install_table(&table_info); - if (ACPI_FAILURE(status)) { - if (status == AE_ALREADY_EXISTS) { - /* Table already exists, no error */ - - status = AE_OK; - } - - /* Free table allocated by acpi_tb_get_table_body */ - - acpi_tb_delete_single_table(&table_info); - return_ACPI_STATUS(status); - } - - /* Convert the table to common format if necessary */ - - switch (table_info.type) { - case ACPI_TABLE_FADT: - - status = acpi_tb_convert_table_fadt(); - break; - - case ACPI_TABLE_FACS: - - status = acpi_tb_build_common_facs(&table_info); - break; - - default: - /* Load table into namespace if it contains executable AML */ - - status = - acpi_ns_load_table(table_info.installed_desc, - acpi_gbl_root_node); - break; - } - - if (ACPI_FAILURE(status)) { - /* Uninstall table and free the buffer */ - - (void)acpi_tb_uninstall_table(table_info.installed_desc); - } - - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_unload_table - * - * PARAMETERS: table_type - Type of table to be unloaded - * - * RETURN: Status - * - * DESCRIPTION: This routine is used to force the unload of a table - * - ******************************************************************************/ - -acpi_status acpi_unload_table(acpi_table_type table_type) -{ - struct acpi_table_desc *table_desc; - - ACPI_FUNCTION_TRACE("acpi_unload_table"); - - /* Parameter validation */ - - if (table_type > ACPI_TABLE_MAX) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Find all tables of the requested type */ - - table_desc = acpi_gbl_table_lists[table_type].next; - while (table_desc) { - /* - * Delete all namespace entries owned by this table. Note that these - * entries 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_ns_delete_namespace_by_owner(table_desc->owner_id); - acpi_ut_release_owner_id(&table_desc->owner_id); - table_desc = table_desc->next; - } - - /* Delete (or unmap) all tables of this type */ - - acpi_tb_delete_tables_by_type(table_type); - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_get_table_header - * - * PARAMETERS: table_type - one of the defined table types - * Instance - the non zero instance of the table, allows - * support for multiple tables of the same type - * see acpi_gbl_acpi_table_flag - * out_table_header - pointer to the struct acpi_table_header if successful - * - * DESCRIPTION: This function is called to get an ACPI table header. The caller - * supplies an pointer to a data area sufficient to contain an ACPI - * struct acpi_table_header structure. - * - * The header contains a length field that can be used to determine - * the size of the buffer needed to contain the entire table. This - * function is not valid for the RSD PTR table since it does not - * have a standard header and is fixed length. - * - ******************************************************************************/ - -acpi_status -acpi_get_table_header(acpi_table_type table_type, - u32 instance, struct acpi_table_header *out_table_header) -{ - struct acpi_table_header *tbl_ptr; - acpi_status status; - - ACPI_FUNCTION_TRACE("acpi_get_table_header"); - - if ((instance == 0) || - (table_type == ACPI_TABLE_RSDP) || (!out_table_header)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Check the table type and instance */ - - if ((table_type > ACPI_TABLE_MAX) || - (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) && - instance > 1)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get a pointer to the entire table */ - - status = acpi_tb_get_table_ptr(table_type, instance, &tbl_ptr); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* The function will return a NULL pointer if the table is not loaded */ - - if (tbl_ptr == NULL) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Copy the header to the caller's buffer */ - - ACPI_MEMCPY((void *)out_table_header, (void *)tbl_ptr, - sizeof(struct acpi_table_header)); - - return_ACPI_STATUS(status); -} - -#endif /* ACPI_FUTURE_USAGE */ - -/******************************************************************************* - * - * FUNCTION: acpi_get_table - * - * PARAMETERS: table_type - one of the defined table types - * Instance - the non zero instance of the table, allows - * support for multiple tables of the same type - * see acpi_gbl_acpi_table_flag - * ret_buffer - pointer to a structure containing a buffer to - * receive the table - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get an ACPI table. The caller - * supplies an out_buffer large enough to contain the entire ACPI - * table. The caller should call the acpi_get_table_header function - * first to determine the buffer size needed. Upon completion - * the out_buffer->Length field will indicate the number of bytes - * copied into the out_buffer->buf_ptr buffer. This table will be - * a complete table including the header. - * - ******************************************************************************/ - -acpi_status -acpi_get_table(acpi_table_type table_type, - u32 instance, struct acpi_buffer *ret_buffer) -{ - struct acpi_table_header *tbl_ptr; - acpi_status status; - acpi_size table_length; - - ACPI_FUNCTION_TRACE("acpi_get_table"); - - /* Parameter validation */ - - if (instance == 0) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - status = acpi_ut_validate_buffer(ret_buffer); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Check the table type and instance */ - - if ((table_type > ACPI_TABLE_MAX) || - (ACPI_IS_SINGLE_TABLE(acpi_gbl_table_data[table_type].flags) && - instance > 1)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Get a pointer to the entire table */ - - status = acpi_tb_get_table_ptr(table_type, instance, &tbl_ptr); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* - * acpi_tb_get_table_ptr will return a NULL pointer if the - * table is not loaded. - */ - if (tbl_ptr == NULL) { - return_ACPI_STATUS(AE_NOT_EXIST); - } - - /* Get the table length */ - - if (table_type == ACPI_TABLE_RSDP) { - /* RSD PTR is the only "table" without a header */ - - table_length = sizeof(struct rsdp_descriptor); - } else { - table_length = (acpi_size) tbl_ptr->length; - } - - /* Validate/Allocate/Clear caller buffer */ - - status = acpi_ut_initialize_buffer(ret_buffer, table_length); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Copy the table to the buffer */ - - ACPI_MEMCPY((void *)ret_buffer->pointer, (void *)tbl_ptr, table_length); - return_ACPI_STATUS(AE_OK); -} - -EXPORT_SYMBOL(acpi_get_table); diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c deleted file mode 100644 index 3b8a7e063e8..00000000000 --- a/drivers/acpi/tables/tbxfroot.c +++ /dev/null @@ -1,642 +0,0 @@ -/****************************************************************************** - * - * Module Name: tbxfroot - Find the root ACPI table (RSDT) - * - *****************************************************************************/ - -/* - * Copyright (C) 2000 - 2005, R. Byron Moore - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions, and the following disclaimer, - * without modification. - * 2. Redistributions in binary form must reproduce at minimum a disclaimer - * substantially similar to the "NO WARRANTY" disclaimer below - * ("Disclaimer") and any redistribution must be conditioned upon - * including a substantially similar Disclaimer requirement for further - * binary redistribution. - * 3. Neither the names of the above-listed copyright holders nor the names - * of any contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - * - * NO WARRANTY - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGES. - */ - -#include <linux/module.h> - -#include <acpi/acpi.h> -#include <acpi/actables.h> - -#define _COMPONENT ACPI_TABLES -ACPI_MODULE_NAME("tbxfroot") - -/* Local prototypes */ -static acpi_status -acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags); - -static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length); - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_rsdp - * - * PARAMETERS: Rsdp - Pointer to unvalidated RSDP - * - * RETURN: Status - * - * DESCRIPTION: Validate the RSDP (ptr) - * - ******************************************************************************/ - -acpi_status acpi_tb_validate_rsdp(struct rsdp_descriptor *rsdp) -{ - ACPI_FUNCTION_ENTRY(); - - /* - * The signature and checksum must both be correct - */ - if (ACPI_STRNCMP((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0) { - /* Nope, BAD Signature */ - - return (AE_BAD_SIGNATURE); - } - - /* Check the standard checksum */ - - if (acpi_tb_generate_checksum(rsdp, ACPI_RSDP_CHECKSUM_LENGTH) != 0) { - return (AE_BAD_CHECKSUM); - } - - /* Check extended checksum if table version >= 2 */ - - if ((rsdp->revision >= 2) && - (acpi_tb_generate_checksum(rsdp, ACPI_RSDP_XCHECKSUM_LENGTH) != - 0)) { - return (AE_BAD_CHECKSUM); - } - - return (AE_OK); -} - -/******************************************************************************* - * - * 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_ptr - Where the table pointer is returned - * - * RETURN: Status - * - * DESCRIPTION: Find an ACPI table (in the RSDT/XSDT) that matches the - * Signature, OEM ID and OEM Table ID. - * - ******************************************************************************/ - -acpi_status -acpi_tb_find_table(char *signature, - char *oem_id, - char *oem_table_id, struct acpi_table_header ** table_ptr) -{ - acpi_status status; - struct acpi_table_header *table; - - ACPI_FUNCTION_TRACE("tb_find_table"); - - /* Validate string lengths */ - - if ((ACPI_STRLEN(signature) > ACPI_NAME_SIZE) || - (ACPI_STRLEN(oem_id) > sizeof(table->oem_id)) || - (ACPI_STRLEN(oem_table_id) > sizeof(table->oem_table_id))) { - return_ACPI_STATUS(AE_AML_STRING_LIMIT); - } - - if (!ACPI_STRNCMP(signature, DSDT_SIG, ACPI_NAME_SIZE)) { - /* - * The DSDT pointer is contained in the FADT, not the RSDT. - * This code should suffice, because the only code that would perform - * a "find" on the DSDT is the data_table_region() AML opcode -- in - * which case, the DSDT is guaranteed to be already loaded. - * If this becomes insufficient, the FADT will have to be found first. - */ - if (!acpi_gbl_DSDT) { - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - table = acpi_gbl_DSDT; - } else { - /* Find the table */ - - status = acpi_get_firmware_table(signature, 1, - ACPI_LOGICAL_ADDRESSING, - &table); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Check oem_id and oem_table_id */ - - if ((oem_id[0] && ACPI_STRNCMP(oem_id, table->oem_id, - sizeof(table->oem_id))) || - (oem_table_id[0] && ACPI_STRNCMP(oem_table_id, table->oem_table_id, - sizeof(table->oem_table_id)))) { - return_ACPI_STATUS(AE_AML_NAME_NOT_FOUND); - } - - ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "Found table [%4.4s]\n", - table->signature)); - - *table_ptr = table; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * FUNCTION: acpi_get_firmware_table - * - * PARAMETERS: Signature - Any ACPI table signature - * Instance - the non zero instance of the table, allows - * support for multiple tables of the same type - * Flags - Physical/Virtual support - * table_pointer - Where a buffer containing the table is - * returned - * - * RETURN: Status - * - * DESCRIPTION: This function is called to get an ACPI table. A buffer is - * allocated for the table and returned in table_pointer. - * This table will be a complete table including the header. - * - ******************************************************************************/ - -acpi_status -acpi_get_firmware_table(acpi_string signature, - u32 instance, - u32 flags, struct acpi_table_header **table_pointer) -{ - acpi_status status; - struct acpi_pointer address; - struct acpi_table_header *header = NULL; - struct acpi_table_desc *table_info = NULL; - struct acpi_table_desc *rsdt_info; - u32 table_count; - u32 i; - u32 j; - - ACPI_FUNCTION_TRACE("acpi_get_firmware_table"); - - /* - * Ensure that at least the table manager is initialized. We don't - * require that the entire ACPI subsystem is up for this interface. - * If we have a buffer, we must have a length too - */ - if ((instance == 0) || (!signature) || (!table_pointer)) { - return_ACPI_STATUS(AE_BAD_PARAMETER); - } - - /* Ensure that we have a RSDP */ - - if (!acpi_gbl_RSDP) { - /* Get the RSDP */ - - status = acpi_os_get_root_pointer(flags, &address); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "RSDP not found\n")); - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - - /* Map and validate the RSDP */ - - if ((flags & ACPI_MEMORY_MODE) == ACPI_LOGICAL_ADDRESSING) { - status = acpi_os_map_memory(address.pointer.physical, - sizeof(struct - rsdp_descriptor), - (void *)&acpi_gbl_RSDP); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } else { - acpi_gbl_RSDP = address.pointer.logical; - } - - /* The RDSP signature and checksum must both be correct */ - - status = acpi_tb_validate_rsdp(acpi_gbl_RSDP); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - } - - /* Get the RSDT address via the RSDP */ - - acpi_tb_get_rsdt_address(&address); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "RSDP located at %p, RSDT physical=%8.8X%8.8X \n", - acpi_gbl_RSDP, - ACPI_FORMAT_UINT64(address.pointer.value))); - - /* Insert processor_mode flags */ - - address.pointer_type |= flags; - - /* Get and validate the RSDT */ - - rsdt_info = ACPI_MEM_CALLOCATE(sizeof(struct acpi_table_desc)); - if (!rsdt_info) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - status = acpi_tb_get_table(&address, rsdt_info); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - status = acpi_tb_validate_rsdt(rsdt_info->pointer); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Allocate a scratch table header and table descriptor */ - - header = ACPI_MEM_ALLOCATE(sizeof(struct acpi_table_header)); - if (!header) { - status = AE_NO_MEMORY; - goto cleanup; - } - - table_info = ACPI_MEM_ALLOCATE(sizeof(struct acpi_table_desc)); - if (!table_info) { - status = AE_NO_MEMORY; - goto cleanup; - } - - /* Get the number of table pointers within the RSDT */ - - table_count = - acpi_tb_get_table_count(acpi_gbl_RSDP, rsdt_info->pointer); - address.pointer_type = acpi_gbl_table_flags | flags; - - /* - * Search the RSDT/XSDT for the correct instance of the - * requested table - */ - for (i = 0, j = 0; i < table_count; i++) { - /* - * Get the next table pointer, handle RSDT vs. XSDT - * RSDT pointers are 32 bits, XSDT pointers are 64 bits - */ - if (acpi_gbl_root_table_type == ACPI_TABLE_TYPE_RSDT) { - address.pointer.value = - (ACPI_CAST_PTR - (RSDT_DESCRIPTOR, - rsdt_info->pointer))->table_offset_entry[i]; - } else { - address.pointer.value = - (ACPI_CAST_PTR - (XSDT_DESCRIPTOR, - rsdt_info->pointer))->table_offset_entry[i]; - } - - /* Get the table header */ - - status = acpi_tb_get_table_header(&address, header); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - /* Compare table signatures and table instance */ - - if (!ACPI_STRNCMP(header->signature, signature, ACPI_NAME_SIZE)) { - /* An instance of the table was found */ - - j++; - if (j >= instance) { - /* Found the correct instance, get the entire table */ - - status = - acpi_tb_get_table_body(&address, header, - table_info); - if (ACPI_FAILURE(status)) { - goto cleanup; - } - - *table_pointer = table_info->pointer; - goto cleanup; - } - } - } - - /* Did not find the table */ - - status = AE_NOT_EXIST; - - cleanup: - if (rsdt_info->pointer) { - acpi_os_unmap_memory(rsdt_info->pointer, - (acpi_size) rsdt_info->pointer->length); - } - ACPI_MEM_FREE(rsdt_info); - - if (header) { - ACPI_MEM_FREE(header); - } - if (table_info) { - ACPI_MEM_FREE(table_info); - } - return_ACPI_STATUS(status); -} - -EXPORT_SYMBOL(acpi_get_firmware_table); - -/* TBD: Move to a new file */ - -#if ACPI_MACHINE_WIDTH != 16 - -/******************************************************************************* - * - * FUNCTION: acpi_find_root_pointer - * - * PARAMETERS: Flags - Logical/Physical addressing - * rsdp_address - Where to place the RSDP address - * - * RETURN: Status, Physical address of the RSDP - * - * DESCRIPTION: Find the RSDP - * - ******************************************************************************/ - -acpi_status acpi_find_root_pointer(u32 flags, struct acpi_pointer *rsdp_address) -{ - struct acpi_table_desc table_info; - acpi_status status; - - ACPI_FUNCTION_TRACE("acpi_find_root_pointer"); - - /* Get the RSDP */ - - status = acpi_tb_find_rsdp(&table_info, flags); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "RSDP structure not found, %s Flags=%X\n", - acpi_format_exception(status), flags)); - - return_ACPI_STATUS(AE_NO_ACPI_TABLES); - } - - rsdp_address->pointer_type = ACPI_PHYSICAL_POINTER; - rsdp_address->pointer.physical = table_info.physical_address; - return_ACPI_STATUS(AE_OK); -} - -/******************************************************************************* - * - * 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 rsdp_descriptor, 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); -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_find_rsdp - * - * PARAMETERS: table_info - Where the table info is returned - * Flags - Current memory mode (logical vs. - * physical addressing) - * - * 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. - * - ******************************************************************************/ - -static acpi_status -acpi_tb_find_rsdp(struct acpi_table_desc *table_info, u32 flags) -{ - u8 *table_ptr; - u8 *mem_rover; - u32 physical_address; - acpi_status status; - - ACPI_FUNCTION_TRACE("tb_find_rsdp"); - - /* - * Scan supports either logical addressing or physical addressing - */ - if ((flags & ACPI_MEMORY_MODE) == ACPI_LOGICAL_ADDRESSING) { - /* 1a) Get the location of the Extended BIOS Data Area (EBDA) */ - - status = acpi_os_map_memory((acpi_physical_address) - ACPI_EBDA_PTR_LOCATION, - ACPI_EBDA_PTR_LENGTH, - (void *)&table_ptr); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Could not map memory at %8.8X for length %X\n", - ACPI_EBDA_PTR_LOCATION, - ACPI_EBDA_PTR_LENGTH)); - - return_ACPI_STATUS(status); - } - - 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) - */ - status = acpi_os_map_memory((acpi_physical_address) - physical_address, - ACPI_EBDA_WINDOW_SIZE, - (void *)&table_ptr); - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Could not map memory at %8.8X for length %X\n", - physical_address, - ACPI_EBDA_WINDOW_SIZE)); - - return_ACPI_STATUS(status); - } - - 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 += - ACPI_PTR_DIFF(mem_rover, table_ptr); - - table_info->physical_address = - (acpi_physical_address) physical_address; - return_ACPI_STATUS(AE_OK); - } - } - - /* - * 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh - */ - status = acpi_os_map_memory((acpi_physical_address) - ACPI_HI_RSDP_WINDOW_BASE, - ACPI_HI_RSDP_WINDOW_SIZE, - (void *)&table_ptr); - - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Could not map memory at %8.8X for length %X\n", - ACPI_HI_RSDP_WINDOW_BASE, - ACPI_HI_RSDP_WINDOW_SIZE)); - - return_ACPI_STATUS(status); - } - - 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 = - ACPI_HI_RSDP_WINDOW_BASE + ACPI_PTR_DIFF(mem_rover, - table_ptr); - - table_info->physical_address = - (acpi_physical_address) physical_address; - return_ACPI_STATUS(AE_OK); - } - } - - /* - * Physical addressing - */ - else { - /* 1a) Get the location of the EBDA */ - - ACPI_MOVE_16_TO_32(&physical_address, ACPI_EBDA_PTR_LOCATION); - physical_address <<= 4; /* Convert segment to physical address */ - - /* EBDA present? */ - - if (physical_address > 0x400) { - /* - * 1b) Search EBDA paragraphs (EBDa is required to be a minimum of - * 1_k length) - */ - mem_rover = - acpi_tb_scan_memory_for_rsdp(ACPI_PHYSADDR_TO_PTR - (physical_address), - ACPI_EBDA_WINDOW_SIZE); - if (mem_rover) { - /* Return the physical address */ - - table_info->physical_address = - ACPI_TO_INTEGER(mem_rover); - return_ACPI_STATUS(AE_OK); - } - } - - /* 2) Search upper memory: 16-byte boundaries in E0000h-FFFFFh */ - - mem_rover = - acpi_tb_scan_memory_for_rsdp(ACPI_PHYSADDR_TO_PTR - (ACPI_HI_RSDP_WINDOW_BASE), - ACPI_HI_RSDP_WINDOW_SIZE); - if (mem_rover) { - /* Found it, return the physical address */ - - table_info->physical_address = - ACPI_TO_INTEGER(mem_rover); - return_ACPI_STATUS(AE_OK); - } - } - - /* A valid RSDP was not found */ - - ACPI_REPORT_ERROR(("No valid RSDP was found\n")); - return_ACPI_STATUS(AE_NOT_FOUND); -} - -#endif |