static void acpi_tb_setup_fadt_registers(void)
{
struct acpi_generic_address *target64;
struct acpi_generic_address *source64;
u8 pm1_register_byte_width;
u32 i;
if (acpi_gbl_use_default_register_widths) {
for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
target64 =
ACPI_ADD_PTR(struct acpi_generic_address,
&acpi_gbl_FADT,
fadt_info_table[i].address64);
if ((target64->address) &&
(fadt_info_table[i].default_length > 0) &&
(fadt_info_table[i].default_length !=
target64->bit_width)) {
ACPI_WARNING((AE_INFO,
"Invalid length for %s: %d, using default %d",
fadt_info_table[i].name,
target64->bit_width,
fadt_info_table[i].
default_length));
target64->bit_width =
fadt_info_table[i].default_length;
}
}
}
pm1_register_byte_width = (u8)
ACPI_DIV_16(acpi_gbl_FADT.xpm1a_event_block.bit_width);
for (i = 0; i < ACPI_FADT_PM_INFO_ENTRIES; i++) {
source64 =
ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
fadt_pm_info_table[i].source);
if (source64->address) {
acpi_tb_init_generic_address(fadt_pm_info_table[i].
target, source64->space_id,
pm1_register_byte_width,
source64->address +
(fadt_pm_info_table[i].
register_num *
pm1_register_byte_width));
}
}
}
static void
AcpiTbSetupFadtRegisters (
void)
{
ACPI_GENERIC_ADDRESS *Target64;
ACPI_GENERIC_ADDRESS *Source64;
UINT8 Pm1RegisterByteWidth;
UINT32 i;
/*
* Optionally check all register lengths against the default values and
* update them if they are incorrect.
*/
if (AcpiGbl_UseDefaultRegisterWidths)
{
for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++)
{
Target64 = ACPI_ADD_PTR (ACPI_GENERIC_ADDRESS, &AcpiGbl_FADT,
FadtInfoTable[i].Address64);
/*
* If a valid register (Address != 0) and the (DefaultLength > 0)
* (Not a GPE register), then check the width against the default.
*/
if ((Target64->Address) &&
(FadtInfoTable[i].DefaultLength > 0) &&
(FadtInfoTable[i].DefaultLength != Target64->BitWidth))
{
ACPI_WARNING ((AE_INFO,
"Invalid length for %s: %u, using default %u",
FadtInfoTable[i].Name, Target64->BitWidth,
FadtInfoTable[i].DefaultLength));
/* Incorrect size, set width to the default */
Target64->BitWidth = FadtInfoTable[i].DefaultLength;
}
}
}
/*
* Get the length of the individual PM1 registers (enable and status).
* Each register is defined to be (event block length / 2). Extra divide
* by 8 converts bits to bytes.
*/
Pm1RegisterByteWidth = (UINT8)
ACPI_DIV_16 (AcpiGbl_FADT.XPm1aEventBlock.BitWidth);
/*
* Calculate separate GAS structs for the PM1x (A/B) Status and Enable
* registers. These addresses do not appear (directly) in the FADT, so it
* is useful to pre-calculate them from the PM1 Event Block definitions.
*
* The PM event blocks are split into two register blocks, first is the
* PM Status Register block, followed immediately by the PM Enable
* Register block. Each is of length (Pm1EventLength/2)
*
* Note: The PM1A event block is required by the ACPI specification.
* However, the PM1B event block is optional and is rarely, if ever,
* used.
*/
for (i = 0; i < ACPI_FADT_PM_INFO_ENTRIES; i++)
{
Source64 = ACPI_ADD_PTR (ACPI_GENERIC_ADDRESS, &AcpiGbl_FADT,
FadtPmInfoTable[i].Source);
if (Source64->Address)
{
AcpiTbInitGenericAddress (FadtPmInfoTable[i].Target,
Source64->SpaceId, Pm1RegisterByteWidth,
Source64->Address +
(FadtPmInfoTable[i].RegisterNum * Pm1RegisterByteWidth));
}
}
}
static void acpi_tb_setup_fadt_registers(void)
{
struct acpi_generic_address *target64;
struct acpi_generic_address *source64;
u8 pm1_register_byte_width;
u32 i;
/*
* Optionally check all register lengths against the default values and
* update them if they are incorrect.
*/
if (acpi_gbl_use_default_register_widths) {
for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) {
target64 =
ACPI_ADD_PTR(struct acpi_generic_address,
&acpi_gbl_FADT,
fadt_info_table[i].address64);
/*
* If a valid register (Address != 0) and the (default_length > 0)
* (Not a GPE register), then check the width against the default.
*/
if ((target64->address) &&
(fadt_info_table[i].default_length > 0) &&
(fadt_info_table[i].default_length !=
target64->bit_width)) {
ACPI_BIOS_WARNING((AE_INFO,
"Invalid length for FADT/%s: %u, using default %u",
fadt_info_table[i].name,
target64->bit_width,
fadt_info_table[i].
default_length));
/* Incorrect size, set width to the default */
target64->bit_width =
fadt_info_table[i].default_length;
}
}
}
/*
* Get the length of the individual PM1 registers (enable and status).
* Each register is defined to be (event block length / 2). Extra divide
* by 8 converts bits to bytes.
*/
pm1_register_byte_width = (u8)
ACPI_DIV_16(acpi_gbl_FADT.xpm1a_event_block.bit_width);
/*
* Calculate separate GAS structs for the PM1x (A/B) Status and Enable
* registers. These addresses do not appear (directly) in the FADT, so it
* is useful to pre-calculate them from the PM1 Event Block definitions.
*
* The PM event blocks are split into two register blocks, first is the
* PM Status Register block, followed immediately by the PM Enable
* Register block. Each is of length (pm1_event_length/2)
*
* Note: The PM1A event block is required by the ACPI specification.
* However, the PM1B event block is optional and is rarely, if ever,
* used.
*/
for (i = 0; i < ACPI_FADT_PM_INFO_ENTRIES; i++) {
source64 =
ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
fadt_pm_info_table[i].source);
if (source64->address) {
acpi_tb_init_generic_address(fadt_pm_info_table[i].
target, source64->space_id,
pm1_register_byte_width,
source64->address +
(fadt_pm_info_table[i].
register_num *
pm1_register_byte_width),
"PmRegisters");
}
}
}
