ACPI_STATUS
AcpiTbConvertToXsdt (
ACPI_TABLE_DESC *TableInfo)
{
ACPI_SIZE TableSize;
UINT32 i;
XSDT_DESCRIPTOR *NewTable;
ACPI_FUNCTION_ENTRY ();
/* Compute size of the converted XSDT */
TableSize = ((ACPI_SIZE) AcpiGbl_RsdtTableCount * sizeof (UINT64)) +
sizeof (ACPI_TABLE_HEADER);
/* Allocate an XSDT */
NewTable = ACPI_MEM_CALLOCATE (TableSize);
if (!NewTable)
{
return (AE_NO_MEMORY);
}
/* Copy the header and set the length */
ACPI_MEMCPY (NewTable, TableInfo->Pointer, sizeof (ACPI_TABLE_HEADER));
NewTable->Header.Length = (UINT32) TableSize;
/* Copy the table pointers */
for (i = 0; i < AcpiGbl_RsdtTableCount; i++)
{
if (AcpiGbl_RSDP->Revision < 2)
{
ACPI_STORE_ADDRESS (NewTable->TableOffsetEntry[i],
((RSDT_DESCRIPTOR_REV1 *) TableInfo->Pointer)->TableOffsetEntry[i]);
}
else
{
NewTable->TableOffsetEntry[i] =
((XSDT_DESCRIPTOR *) TableInfo->Pointer)->TableOffsetEntry[i];
}
}
/* Delete the original table (either mapped or in a buffer) */
AcpiTbDeleteSingleTable (TableInfo);
/* Point the table descriptor to the new table */
TableInfo->Pointer = (ACPI_TABLE_HEADER *) NewTable;
TableInfo->Length = TableSize;
TableInfo->Allocation = ACPI_MEM_ALLOCATED;
return (AE_OK);
}
static void
AcpiTbInitGenericAddress (
ACPI_GENERIC_ADDRESS *NewGasStruct,
UINT8 RegisterBitWidth,
ACPI_PHYSICAL_ADDRESS Address)
{
ACPI_STORE_ADDRESS (NewGasStruct->Address, Address);
NewGasStruct->AddressSpaceId = ACPI_ADR_SPACE_SYSTEM_IO;
NewGasStruct->RegisterBitWidth = RegisterBitWidth;
NewGasStruct->RegisterBitOffset = 0;
NewGasStruct->AccessWidth = 0;
}
static void
AcpiTbConvertFadt2 (
FADT_DESCRIPTOR_REV2 *LocalFadt,
FADT_DESCRIPTOR_REV2 *OriginalFadt)
{
/* We have an ACPI 2.0 FADT but we must copy it to our local buffer */
ACPI_MEMCPY (LocalFadt, OriginalFadt, sizeof (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 (!(ACPI_GET_ADDRESS (LocalFadt->XFirmwareCtrl)))
{
ACPI_STORE_ADDRESS (LocalFadt->XFirmwareCtrl, LocalFadt->V1_FirmwareCtrl);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XDsdt)))
{
ACPI_STORE_ADDRESS (LocalFadt->XDsdt, LocalFadt->V1_Dsdt);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1aEvtBlk.Address)))
{
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm1aEvtBlk,
LocalFadt->Pm1EvtLen, LocalFadt->V1_Pm1aEvtBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address)))
{
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm1bEvtBlk,
LocalFadt->Pm1EvtLen, LocalFadt->V1_Pm1bEvtBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1aCntBlk.Address)))
{
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm1aCntBlk,
LocalFadt->Pm1CntLen, LocalFadt->V1_Pm1aCntBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1bCntBlk.Address)))
{
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm1bCntBlk,
LocalFadt->Pm1CntLen, LocalFadt->V1_Pm1bCntBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm2CntBlk.Address)))
{
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm2CntBlk,
LocalFadt->Pm2CntLen, LocalFadt->V1_Pm2CntBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPmTmrBlk.Address)))
{
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPmTmrBlk,
LocalFadt->PmTmLen, LocalFadt->V1_PmTmrBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XGpe0Blk.Address)))
{
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XGpe0Blk,
0, LocalFadt->V1_Gpe0Blk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XGpe1Blk.Address)))
{
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XGpe1Blk,
0, LocalFadt->V1_Gpe1Blk);
}
}
static void
AcpiTbConvertFadt1 (
FADT_DESCRIPTOR_REV2 *LocalFadt,
FADT_DESCRIPTOR_REV1 *OriginalFadt)
{
/* ACPI 1.0 FACS */
/* The BIOS stored FADT should agree with Revision 1.0 */
/*
* 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 (LocalFadt, OriginalFadt, sizeof (FADT_DESCRIPTOR_REV1));
/* Convert table pointers to 64-bit fields */
ACPI_STORE_ADDRESS (LocalFadt->XFirmwareCtrl, LocalFadt->V1_FirmwareCtrl);
ACPI_STORE_ADDRESS (LocalFadt->XDsdt, LocalFadt->V1_Dsdt);
/*
* System Interrupt Model isn't used in ACPI 2.0 (LocalFadt->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".
*/
LocalFadt->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, leave it zeroed.
*/
LocalFadt->PstateCnt = 0;
/*
* Support for the _CST object and C States change notification.
* This data item hasn't any 1.0 equivalence so leave it zero.
*/
LocalFadt->CstCnt = 0;
/*
* Since there isn't any equivalence in 1.0 and since it highly likely
* that a 1.0 system has legacy support.
*/
LocalFadt->IapcBootArch = BAF_LEGACY_DEVICES;
/*
* Convert the V1.0 block addresses to V2.0 GAS structures
*/
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm1aEvtBlk, LocalFadt->Pm1EvtLen, LocalFadt->V1_Pm1aEvtBlk);
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm1bEvtBlk, LocalFadt->Pm1EvtLen, LocalFadt->V1_Pm1bEvtBlk);
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm1aCntBlk, LocalFadt->Pm1CntLen, LocalFadt->V1_Pm1aCntBlk);
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm1bCntBlk, LocalFadt->Pm1CntLen, LocalFadt->V1_Pm1bCntBlk);
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPm2CntBlk, LocalFadt->Pm2CntLen, LocalFadt->V1_Pm2CntBlk);
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XPmTmrBlk, LocalFadt->PmTmLen, LocalFadt->V1_PmTmrBlk);
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XGpe0Blk, 0, LocalFadt->V1_Gpe0Blk);
ASL_BUILD_GAS_FROM_V1_ENTRY (LocalFadt->XGpe1Blk, 0, LocalFadt->V1_Gpe1Blk);
}
static acpi_status
acpi_ev_create_gpe_info_blocks (
struct acpi_gpe_block_info *gpe_block)
{
struct acpi_gpe_register_info *gpe_register_info = NULL;
struct acpi_gpe_event_info *gpe_event_info = NULL;
struct acpi_gpe_event_info *this_event;
struct acpi_gpe_register_info *this_register;
acpi_native_uint i;
acpi_native_uint j;
acpi_status status;
ACPI_FUNCTION_TRACE ("ev_create_gpe_info_blocks");
/* Allocate the GPE register information block */
gpe_register_info = ACPI_MEM_CALLOCATE (
(acpi_size) gpe_block->register_count *
sizeof (struct acpi_gpe_register_info));
if (!gpe_register_info) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
"Could not allocate the gpe_register_info table\n"));
return_ACPI_STATUS (AE_NO_MEMORY);
}
/*
* Allocate the GPE event_info block. There are eight distinct GPEs
* per register. Initialization to zeros is sufficient.
*/
gpe_event_info = ACPI_MEM_CALLOCATE (
((acpi_size) gpe_block->register_count * ACPI_GPE_REGISTER_WIDTH) *
sizeof (struct acpi_gpe_event_info));
if (!gpe_event_info) {
ACPI_DEBUG_PRINT ((ACPI_DB_ERROR, "Could not allocate the gpe_event_info table\n"));
status = AE_NO_MEMORY;
goto error_exit;
}
/* Save the new Info arrays in the GPE block */
gpe_block->register_info = gpe_register_info;
gpe_block->event_info = gpe_event_info;
/*
* Initialize the GPE Register and Event structures. A goal of these
* tables is to hide the fact that there are two separate GPE register sets
* in a given gpe hardware block, the status registers occupy the first half,
* and the enable registers occupy the second half.
*/
this_register = gpe_register_info;
this_event = gpe_event_info;
for (i = 0; i < gpe_block->register_count; i++) {
/* Init the register_info for this GPE register (8 GPEs) */
this_register->base_gpe_number = (u8) (gpe_block->block_base_number +
(i * ACPI_GPE_REGISTER_WIDTH));
ACPI_STORE_ADDRESS (this_register->status_address.address,
(gpe_block->block_address.address
+ i));
ACPI_STORE_ADDRESS (this_register->enable_address.address,
(gpe_block->block_address.address
+ i
+ gpe_block->register_count));
this_register->status_address.address_space_id = gpe_block->block_address.address_space_id;
this_register->enable_address.address_space_id = gpe_block->block_address.address_space_id;
this_register->status_address.register_bit_width = ACPI_GPE_REGISTER_WIDTH;
this_register->enable_address.register_bit_width = ACPI_GPE_REGISTER_WIDTH;
this_register->status_address.register_bit_offset = ACPI_GPE_REGISTER_WIDTH;
this_register->enable_address.register_bit_offset = ACPI_GPE_REGISTER_WIDTH;
/* Init the event_info for each GPE within this register */
for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
this_event->bit_mask = acpi_gbl_decode_to8bit[j];
this_event->register_info = this_register;
this_event++;
}
/*
* Clear the status/enable registers. Note that status registers
* are cleared by writing a '1', while enable registers are cleared
* by writing a '0'.
*/
status = acpi_hw_low_level_write (ACPI_GPE_REGISTER_WIDTH, 0x00,
&this_register->enable_address);
if (ACPI_FAILURE (status)) {
goto error_exit;
}
status = acpi_hw_low_level_write (ACPI_GPE_REGISTER_WIDTH, 0xFF,
&this_register->status_address);
if (ACPI_FAILURE (status)) {
goto error_exit;
}
this_register++;
}
return_ACPI_STATUS (AE_OK);
error_exit:
if (gpe_register_info) {
ACPI_MEM_FREE (gpe_register_info);
}
if (gpe_event_info) {
ACPI_MEM_FREE (gpe_event_info);
}
return_ACPI_STATUS (status);
}
static void
AcpiTbConvertFadt2 (
FADT_DESCRIPTOR *LocalFadt,
FADT_DESCRIPTOR *OriginalFadt)
{
/* We have an ACPI 2.0 FADT but we must copy it to our local buffer */
ACPI_MEMCPY (LocalFadt, OriginalFadt, sizeof (FADT_DESCRIPTOR));
/*
* "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 (!(ACPI_GET_ADDRESS (LocalFadt->XFirmwareCtrl)))
{
ACPI_STORE_ADDRESS (LocalFadt->XFirmwareCtrl,
LocalFadt->V1_FirmwareCtrl);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XDsdt)))
{
ACPI_STORE_ADDRESS (LocalFadt->XDsdt, LocalFadt->V1_Dsdt);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1aEvtBlk.Address)))
{
AcpiTbInitGenericAddress (&LocalFadt->XPm1aEvtBlk,
LocalFadt->Pm1EvtLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1aEvtBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address)))
{
AcpiTbInitGenericAddress (&LocalFadt->XPm1bEvtBlk,
LocalFadt->Pm1EvtLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1bEvtBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1aCntBlk.Address)))
{
AcpiTbInitGenericAddress (&LocalFadt->XPm1aCntBlk,
LocalFadt->Pm1CntLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1aCntBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm1bCntBlk.Address)))
{
AcpiTbInitGenericAddress (&LocalFadt->XPm1bCntBlk,
LocalFadt->Pm1CntLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1bCntBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPm2CntBlk.Address)))
{
AcpiTbInitGenericAddress (&LocalFadt->XPm2CntBlk,
LocalFadt->Pm2CntLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm2CntBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XPmTmrBlk.Address)))
{
AcpiTbInitGenericAddress (&LocalFadt->XPmTmrBlk,
LocalFadt->PmTmLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_PmTmrBlk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XGpe0Blk.Address)))
{
AcpiTbInitGenericAddress (&LocalFadt->XGpe0Blk,
0, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Gpe0Blk);
}
if (!(ACPI_GET_ADDRESS (LocalFadt->XGpe1Blk.Address)))
{
AcpiTbInitGenericAddress (&LocalFadt->XGpe1Blk,
0, (ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Gpe1Blk);
}
/* Create separate GAS structs for the PM1 Enable registers */
AcpiTbInitGenericAddress (&AcpiGbl_XPm1aEnable,
(UINT8) ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen),
(ACPI_PHYSICAL_ADDRESS)
(ACPI_GET_ADDRESS (LocalFadt->XPm1aEvtBlk.Address) +
ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen)));
AcpiGbl_XPm1aEnable.AddressSpaceId =
LocalFadt->XPm1aEvtBlk.AddressSpaceId;
/* PM1B is optional; leave null if not present */
if (ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address))
{
AcpiTbInitGenericAddress (&AcpiGbl_XPm1bEnable,
(UINT8) ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen),
(ACPI_PHYSICAL_ADDRESS)
(ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address) +
ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen)));
AcpiGbl_XPm1bEnable.AddressSpaceId =
LocalFadt->XPm1bEvtBlk.AddressSpaceId;
}
}
static void
AcpiTbConvertFadt1 (
FADT_DESCRIPTOR *LocalFadt,
FADT_DESCRIPTOR_REV1 *OriginalFadt)
{
/* ACPI 1.0 FACS */
/* The BIOS stored FADT should agree with Revision 1.0 */
/*
* 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 (LocalFadt, OriginalFadt, sizeof (FADT_DESCRIPTOR_REV1));
/* Convert table pointers to 64-bit fields */
ACPI_STORE_ADDRESS (LocalFadt->XFirmwareCtrl, LocalFadt->V1_FirmwareCtrl);
ACPI_STORE_ADDRESS (LocalFadt->XDsdt, LocalFadt->V1_Dsdt);
/*
* System Interrupt Model isn't used in ACPI 2.0
* (LocalFadt->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".
*/
LocalFadt->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, leave it zeroed.
*/
LocalFadt->PstateCnt = 0;
/*
* Support for the _CST object and C States change notification.
* This data item hasn't any 1.0 equivalence so leave it zero.
*/
LocalFadt->CstCnt = 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 ((OriginalFadt->Revision == 2) &&
(OriginalFadt->Length == sizeof (FADT_DESCRIPTOR_REV2_MINUS)))
{
/*
* Grab the entire generic address struct, plus the 1-byte reset value
* that immediately follows.
*/
ACPI_MEMCPY (&LocalFadt->ResetRegister,
&(ACPI_CAST_PTR (FADT_DESCRIPTOR_REV2_MINUS,
OriginalFadt))->ResetRegister,
sizeof (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.
*/
LocalFadt->IapcBootArch = BAF_LEGACY_DEVICES;
}
/*
* Convert the V1.0 block addresses to V2.0 GAS structures
*/
AcpiTbInitGenericAddress (&LocalFadt->XPm1aEvtBlk, LocalFadt->Pm1EvtLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1aEvtBlk);
AcpiTbInitGenericAddress (&LocalFadt->XPm1bEvtBlk, LocalFadt->Pm1EvtLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1bEvtBlk);
AcpiTbInitGenericAddress (&LocalFadt->XPm1aCntBlk, LocalFadt->Pm1CntLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1aCntBlk);
AcpiTbInitGenericAddress (&LocalFadt->XPm1bCntBlk, LocalFadt->Pm1CntLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm1bCntBlk);
AcpiTbInitGenericAddress (&LocalFadt->XPm2CntBlk, LocalFadt->Pm2CntLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Pm2CntBlk);
AcpiTbInitGenericAddress (&LocalFadt->XPmTmrBlk, LocalFadt->PmTmLen,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_PmTmrBlk);
AcpiTbInitGenericAddress (&LocalFadt->XGpe0Blk, 0,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Gpe0Blk);
AcpiTbInitGenericAddress (&LocalFadt->XGpe1Blk, 0,
(ACPI_PHYSICAL_ADDRESS) LocalFadt->V1_Gpe1Blk);
/* Create separate GAS structs for the PM1 Enable registers */
AcpiTbInitGenericAddress (&AcpiGbl_XPm1aEnable,
(UINT8) ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen),
(ACPI_PHYSICAL_ADDRESS)
(ACPI_GET_ADDRESS (LocalFadt->XPm1aEvtBlk.Address) +
ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen)));
/* PM1B is optional; leave null if not present */
if (ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address))
{
AcpiTbInitGenericAddress (&AcpiGbl_XPm1bEnable,
(UINT8) ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen),
(ACPI_PHYSICAL_ADDRESS)
(ACPI_GET_ADDRESS (LocalFadt->XPm1bEvtBlk.Address) +
ACPI_DIV_2 (AcpiGbl_FADT->Pm1EvtLen)));
}
}
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);
}
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);
}