tbconvrt.c
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:16k
- /******************************************************************************
- *
- * Module Name: tbconvrt - ACPI Table conversion utilities
- * $Revision: 28 $
- *
- *****************************************************************************/
- /*
- * Copyright (C) 2000, 2001 R. Byron Moore
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
- #include "acpi.h"
- #include "achware.h"
- #include "actables.h"
- #include "actbl.h"
- #define _COMPONENT ACPI_TABLES
- MODULE_NAME ("tbconvrt")
- /*******************************************************************************
- *
- * FUNCTION: Acpi_tb_get_table_count
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION: Calculate the number of tables
- *
- ******************************************************************************/
- u32
- acpi_tb_get_table_count (
- RSDP_DESCRIPTOR *RSDP,
- acpi_table_header *RSDT)
- {
- u32 pointer_size;
- FUNCTION_ENTRY ();
- #ifndef _IA64
- if (RSDP->revision < 2) {
- pointer_size = sizeof (u32);
- }
- else
- #endif
- {
- 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 (acpi_table_header)) / pointer_size);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_tb_convert_to_xsdt
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION: Convert an RSDT to an XSDT (internal common format)
- *
- ******************************************************************************/
- acpi_status
- acpi_tb_convert_to_xsdt (
- acpi_table_desc *table_info,
- u32 *number_of_tables)
- {
- u32 table_size;
- u32 i;
- xsdt_descriptor *new_table;
- FUNCTION_ENTRY ();
- *number_of_tables = acpi_tb_get_table_count (acpi_gbl_RSDP, table_info->pointer);
- /* Compute size of the converted XSDT */
- table_size = (*number_of_tables * sizeof (u64)) + sizeof (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 */
- MEMCPY (new_table, table_info->pointer, sizeof (acpi_table_header));
- new_table->header.length = table_size;
- /* Copy the table pointers */
- for (i = 0; i < *number_of_tables; i++) {
- if (acpi_gbl_RSDP->revision < 2) {
- #ifdef _IA64
- new_table->table_offset_entry[i] =
- ((RSDT_DESCRIPTOR_REV071 *) table_info->pointer)->table_offset_entry[i];
- #else
- ACPI_STORE_ADDRESS (new_table->table_offset_entry[i],
- ((RSDT_DESCRIPTOR_REV1 *) table_info->pointer)->table_offset_entry[i]);
- #endif
- }
- else {
- new_table->table_offset_entry[i] =
- ((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_table_header *) new_table;
- table_info->base_pointer = (acpi_table_header *) new_table;
- table_info->length = table_size;
- table_info->allocation = ACPI_MEM_ALLOCATED;
- return (AE_OK);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_tb_convert_table_fadt
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- * Converts BIOS supplied 1.0 and 0.71 ACPI FADT to an intermediate
- * ACPI 2.0 FADT. If the BIOS supplied a 2.0 FADT then it is simply
- * copied to the intermediate FADT. The ACPI CA software uses this
- * intermediate FADT. Thus a significant amount of special #ifdef
- * type codeing is saved. This intermediate FADT will need to be
- * freed at some point.
- *
- ******************************************************************************/
- acpi_status
- acpi_tb_convert_table_fadt (void)
- {
- #ifdef _IA64
- fadt_descriptor_rev071 *FADT71;
- u8 pm1_address_space;
- u8 pm2_address_space;
- u8 pm_timer_address_space;
- u8 gpe0address_space;
- u8 gpe1_address_space;
- #else
- fadt_descriptor_rev1 *FADT1;
- #endif
- fadt_descriptor_rev2 *FADT2;
- acpi_table_desc *table_desc;
- FUNCTION_TRACE ("Tb_convert_table_fadt");
- /* Acpi_gbl_FADT is valid */
- /* Allocate and zero the 2.0 buffer */
- FADT2 = ACPI_MEM_CALLOCATE (sizeof (fadt_descriptor_rev2));
- if (FADT2 == NULL) {
- return_ACPI_STATUS (AE_NO_MEMORY);
- }
- /* The ACPI FADT revision number is FADT2_REVISION_ID=3 */
- /* So, if the current table revision is less than 3 it is type 1.0 or 0.71 */
- if (acpi_gbl_FADT->header.revision >= FADT2_REVISION_ID) {
- /* We have an ACPI 2.0 FADT but we must copy it to our local buffer */
- *FADT2 = *((fadt_descriptor_rev2*) acpi_gbl_FADT);
- }
- else {
- #ifdef _IA64
- /*
- * For the 64-bit case only, a revision ID less than V2.0 means the
- * tables are the 0.71 extensions
- */
- /* The BIOS stored FADT should agree with Revision 0.71 */
- FADT71 = (fadt_descriptor_rev071 *) acpi_gbl_FADT;
- /* Copy the table header*/
- FADT2->header = FADT71->header;
- /* Copy the common fields */
- FADT2->sci_int = FADT71->sci_int;
- FADT2->acpi_enable = FADT71->acpi_enable;
- FADT2->acpi_disable = FADT71->acpi_disable;
- FADT2->S4bios_req = FADT71->S4bios_req;
- FADT2->plvl2_lat = FADT71->plvl2_lat;
- FADT2->plvl3_lat = FADT71->plvl3_lat;
- FADT2->day_alrm = FADT71->day_alrm;
- FADT2->mon_alrm = FADT71->mon_alrm;
- FADT2->century = FADT71->century;
- FADT2->gpe1_base = FADT71->gpe1_base;
- /*
- * We still use the block length registers even though
- * the GAS structure should obsolete them. This is because
- * these registers are byte lengths versus the GAS which
- * contains a bit width
- */
- FADT2->pm1_evt_len = FADT71->pm1_evt_len;
- FADT2->pm1_cnt_len = FADT71->pm1_cnt_len;
- FADT2->pm2_cnt_len = FADT71->pm2_cnt_len;
- FADT2->pm_tm_len = FADT71->pm_tm_len;
- FADT2->gpe0blk_len = FADT71->gpe0blk_len;
- FADT2->gpe1_blk_len = FADT71->gpe1_blk_len;
- FADT2->gpe1_base = FADT71->gpe1_base;
- /* Copy the existing 0.71 flags to 2.0. The other bits are zero.*/
- FADT2->wb_invd = FADT71->flush_cash;
- FADT2->proc_c1 = FADT71->proc_c1;
- FADT2->plvl2_up = FADT71->plvl2_up;
- FADT2->pwr_button = FADT71->pwr_button;
- FADT2->sleep_button = FADT71->sleep_button;
- FADT2->fixed_rTC = FADT71->fixed_rTC;
- FADT2->rtcs4 = FADT71->rtcs4;
- FADT2->tmr_val_ext = FADT71->tmr_val_ext;
- FADT2->dock_cap = FADT71->dock_cap;
- /* We should not use these next two addresses */
- /* Since our buffer is pre-zeroed nothing to do for */
- /* the next three data items in the structure */
- /* FADT2->Firmware_ctrl = 0; */
- /* FADT2->Dsdt = 0; */
- /* System Interrupt Model isn't used in ACPI 2.0*/
- /* FADT2->Reserved1 = 0; */
- /* This field is set by the OEM to convey the preferred */
- /* power management profile to OSPM. It doesn't have any*/
- /* 0.71 equivalence. Since we don't know what kind of */
- /* 64-bit system this is, we will pick unspecified. */
- FADT2->prefer_PM_profile = PM_UNSPECIFIED;
- /* Port address of SMI command port */
- /* We shouldn't use this port because IA64 doesn't */
- /* have or use SMI. It has PMI. */
- FADT2->smi_cmd = (u32)(FADT71->smi_cmd & 0xFFFFFFFF);
- /* processor performance state control*/
- /* The value OSPM writes to the SMI_CMD register to assume */
- /* processor performance state control responsibility. */
- /* There isn't any equivalence in 0.71 */
- /* Again this should be meaningless for IA64 */
- /* FADT2->Pstate_cnt = 0; */
- /* The 32-bit Power management and GPE registers are */
- /* not valid in IA-64 and we are not going to use them */
- /* so leaving them pre-zeroed. */
- /* Support for the _CST object and C States change notification.*/
- /* This data item hasn't any 0.71 equivalence so leaving it zero.*/
- /* FADT2->Cst_cnt = 0; */
- /* number of flush strides that need to be read */
- /* No 0.71 equivalence. Leave pre-zeroed. */
- /* FADT2->Flush_size = 0; */
- /* Processor's memory cache line width, in bytes */
- /* No 0.71 equivalence. Leave pre-zeroed. */
- /* FADT2->Flush_stride = 0; */
- /* Processor's duty cycle index in processor's P_CNT reg*/
- /* No 0.71 equivalence. Leave pre-zeroed. */
- /* FADT2->Duty_offset = 0; */
- /* Processor's duty cycle value bit width in P_CNT register.*/
- /* No 0.71 equivalence. Leave pre-zeroed. */
- /* FADT2->Duty_width = 0; */
- /* Since there isn't any equivalence in 0.71 */
- /* and since Big_sur had to support legacy */
- FADT2->iapc_boot_arch = BAF_LEGACY_DEVICES;
- /* Copy to ACPI 2.0 64-BIT Extended Addresses */
- FADT2->Xfirmware_ctrl = FADT71->firmware_ctrl;
- FADT2->Xdsdt = FADT71->dsdt;
- /* Extract the address space IDs */
- pm1_address_space = (u8)((FADT71->address_space & PM1_BLK_ADDRESS_SPACE) >> 1);
- pm2_address_space = (u8)((FADT71->address_space & PM2_CNT_BLK_ADDRESS_SPACE) >> 2);
- pm_timer_address_space = (u8)((FADT71->address_space & PM_TMR_BLK_ADDRESS_SPACE) >> 3);
- gpe0address_space = (u8)((FADT71->address_space & GPE0_BLK_ADDRESS_SPACE) >> 4);
- gpe1_address_space = (u8)((FADT71->address_space & GPE1_BLK_ADDRESS_SPACE) >> 5);
- /*
- * Convert the 0.71 (non-GAS style) Block addresses to V2.0 GAS structures,
- * in this order:
- *
- * PM 1_a Events
- * PM 1_b Events
- * PM 1_a Control
- * PM 1_b Control
- * PM 2 Control
- * PM Timer Control
- * GPE Block 0
- * GPE Block 1
- */
- ASL_BUILD_GAS_FROM_ENTRY (FADT2->Xpm1a_evt_blk, FADT71->pm1_evt_len, FADT71->pm1a_evt_blk, pm1_address_space);
- ASL_BUILD_GAS_FROM_ENTRY (FADT2->Xpm1b_evt_blk, FADT71->pm1_evt_len, FADT71->pm1b_evt_blk, pm1_address_space);
- ASL_BUILD_GAS_FROM_ENTRY (FADT2->Xpm1a_cnt_blk, FADT71->pm1_cnt_len, FADT71->pm1a_cnt_blk, pm1_address_space);
- ASL_BUILD_GAS_FROM_ENTRY (FADT2->Xpm1b_cnt_blk, FADT71->pm1_cnt_len, FADT71->pm1b_cnt_blk, pm1_address_space);
- ASL_BUILD_GAS_FROM_ENTRY (FADT2->Xpm2_cnt_blk, FADT71->pm2_cnt_len, FADT71->pm2_cnt_blk, pm2_address_space);
- ASL_BUILD_GAS_FROM_ENTRY (FADT2->Xpm_tmr_blk, FADT71->pm_tm_len, FADT71->pm_tmr_blk, pm_timer_address_space);
- ASL_BUILD_GAS_FROM_ENTRY (FADT2->Xgpe0blk, FADT71->gpe0blk_len, FADT71->gpe0blk, gpe0address_space);
- ASL_BUILD_GAS_FROM_ENTRY (FADT2->Xgpe1_blk, FADT71->gpe1_blk_len, FADT71->gpe1_blk, gpe1_address_space);
- #else
- /* ACPI 1.0 FACS */
- /* The BIOS stored FADT should agree with Revision 1.0 */
- FADT1 = (fadt_descriptor_rev1*) acpi_gbl_FADT;
- /*
- * 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.
- */
- MEMCPY (FADT2, FADT1, sizeof (fadt_descriptor_rev1));
- /* Convert table pointers to 64-bit fields */
- ACPI_STORE_ADDRESS (FADT2->Xfirmware_ctrl, FADT1->firmware_ctrl);
- ACPI_STORE_ADDRESS (FADT2->Xdsdt, FADT1->dsdt);
- /* System Interrupt Model isn't used in ACPI 2.0*/
- /* FADT2->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 pick unspecified. */
- FADT2->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. So leave it zeroed. */
- FADT2->pstate_cnt = 0;
- /* Support for the _CST object and C States change notification.*/
- /* This data item hasn't any 1.0 equivalence so leaving it zero.*/
- FADT2->cst_cnt = 0;
- /* Since there isn't any equivalence in 1.0 and since it */
- /* is highly likely that a 1.0 system has legacy support. */
- FADT2->iapc_boot_arch = BAF_LEGACY_DEVICES;
- /*
- * Convert the V1.0 Block addresses to V2.0 GAS structures
- * in this order:
- *
- * PM 1_a Events
- * PM 1_b Events
- * PM 1_a Control
- * PM 1_b Control
- * PM 2 Control
- * PM Timer Control
- * GPE Block 0
- * GPE Block 1
- */
- ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->Xpm1a_evt_blk, FADT1->pm1_evt_len, FADT1->pm1a_evt_blk);
- ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->Xpm1b_evt_blk, FADT1->pm1_evt_len, FADT1->pm1b_evt_blk);
- ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->Xpm1a_cnt_blk, FADT1->pm1_cnt_len, FADT1->pm1a_cnt_blk);
- ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->Xpm1b_cnt_blk, FADT1->pm1_cnt_len, FADT1->pm1b_cnt_blk);
- ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->Xpm2_cnt_blk, FADT1->pm2_cnt_len, FADT1->pm2_cnt_blk);
- ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->Xpm_tmr_blk, FADT1->pm_tm_len, FADT1->pm_tmr_blk);
- ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->Xgpe0blk, FADT1->gpe0blk_len, FADT1->gpe0blk);
- ASL_BUILD_GAS_FROM_V1_ENTRY (FADT2->Xgpe1_blk, FADT1->gpe1_blk_len, FADT1->gpe1_blk);
- #endif
- }
- /*
- * Global FADT pointer will point to the common V2.0 FADT
- */
- acpi_gbl_FADT = FADT2;
- acpi_gbl_FADT->header.length = sizeof (FADT_DESCRIPTOR);
- /* Free the original table */
- table_desc = &acpi_gbl_acpi_tables[ACPI_TABLE_FADT];
- acpi_tb_delete_single_table (table_desc);
- /* Install the new table */
- table_desc->pointer = (acpi_table_header *) acpi_gbl_FADT;
- table_desc->base_pointer = acpi_gbl_FADT;
- table_desc->allocation = ACPI_MEM_ALLOCATED;
- table_desc->length = sizeof (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->header.length, acpi_gbl_FADT->header.length));
- DUMP_BUFFER ((u8 *) (acpi_gbl_FADT), acpi_gbl_FADT->header.length);
- return_ACPI_STATUS (AE_OK);
- }
- /*******************************************************************************
- *
- * FUNCTION: Acpi_tb_convert_table_facs
- *
- * PARAMETERS:
- *
- * RETURN:
- *
- * DESCRIPTION:
- *
- ******************************************************************************/
- acpi_status
- acpi_tb_build_common_facs (
- acpi_table_desc *table_info)
- {
- acpi_common_facs *common_facs;
- #ifdef _IA64
- facs_descriptor_rev071 *FACS71;
- #else
- facs_descriptor_rev1 *FACS1;
- #endif
- facs_descriptor_rev2 *FACS2;
- FUNCTION_TRACE ("Tb_build_common_facs");
- /* Allocate a common FACS */
- common_facs = ACPI_MEM_CALLOCATE (sizeof (acpi_common_facs));
- if (!common_facs) {
- return_ACPI_STATUS (AE_NO_MEMORY);
- }
- /* Copy fields to the new FACS */
- if (acpi_gbl_RSDP->revision < 2) {
- #ifdef _IA64
- /* 0.71 FACS */
- FACS71 = (facs_descriptor_rev071 *) acpi_gbl_FACS;
- common_facs->global_lock = (u32 *) &(FACS71->global_lock);
- common_facs->firmware_waking_vector = &FACS71->firmware_waking_vector;
- common_facs->vector_width = 64;
- #else
- /* ACPI 1.0 FACS */
- FACS1 = (facs_descriptor_rev1 *) acpi_gbl_FACS;
- common_facs->global_lock = &(FACS1->global_lock);
- common_facs->firmware_waking_vector = (u64 *) &FACS1->firmware_waking_vector;
- common_facs->vector_width = 32;
- #endif
- }
- else {
- /* ACPI 2.0 FACS */
- FACS2 = (facs_descriptor_rev2 *) acpi_gbl_FACS;
- common_facs->global_lock = &(FACS2->global_lock);
- common_facs->firmware_waking_vector = &FACS2->Xfirmware_waking_vector;
- common_facs->vector_width = 64;
- }
- /* Set the global FACS pointer to point to the common FACS */
- acpi_gbl_FACS = common_facs;
- return_ACPI_STATUS (AE_OK);
- }