/* Get pm1x_cnt and pm1x_evt information for ACPI sleep */
static void __init
acpi_fadt_parse_sleep_info(struct acpi_table_fadt *fadt)
{
struct acpi_table_facs *facs = NULL;
uint64_t facs_pa;
acpi_fadt_copy_address(pm1a_cnt, pm1a_control, pm1_control);
acpi_fadt_copy_address(pm1b_cnt, pm1b_control, pm1_control);
acpi_fadt_copy_address(pm1a_evt, pm1a_event, pm1_event);
acpi_fadt_copy_address(pm1b_evt, pm1b_event, pm1_event);
printk(KERN_INFO PREFIX
"ACPI SLEEP INFO: pm1x_cnt[%"PRIx64",%"PRIx64"], "
"pm1x_evt[%"PRIx64",%"PRIx64"]\n",
acpi_sinfo.pm1a_cnt_blk.address,
acpi_sinfo.pm1b_cnt_blk.address,
acpi_sinfo.pm1a_evt_blk.address,
acpi_sinfo.pm1b_evt_blk.address);
/* Now FACS... */
if (fadt->header.revision >= FADT2_REVISION_ID)
facs_pa = fadt->Xfacs;
else
facs_pa = (uint64_t)fadt->facs;
facs = (struct acpi_table_facs *)
__acpi_map_table(facs_pa, sizeof(struct acpi_table_facs));
if (!facs)
goto bad;
if (strncmp(facs->signature, "FACS", 4)) {
printk(KERN_ERR PREFIX "Invalid FACS signature %.4s\n",
facs->signature);
goto bad;
}
if (facs->length < 24) {
printk(KERN_ERR PREFIX "Invalid FACS table length: 0x%x",
facs->length);
goto bad;
}
if (facs->length < 64)
printk(KERN_WARNING PREFIX
"FACS is shorter than ACPI spec allow: 0x%x",
facs->length);
acpi_sinfo.wakeup_vector = facs_pa +
offsetof(struct acpi_table_facs, firmware_waking_vector);
acpi_sinfo.vector_width = 32;
printk(KERN_INFO PREFIX
" wakeup_vec[%"PRIx64"], vec_size[%x]\n",
acpi_sinfo.wakeup_vector, acpi_sinfo.vector_width);
return;
bad:
memset(&acpi_sinfo, 0, sizeof(acpi_sinfo));
}
/* Get pm1x_cnt and pm1x_evt information for ACPI sleep */
static void __init
acpi_fadt_parse_sleep_info(struct acpi_table_fadt *fadt)
{
struct acpi_table_facs *facs = NULL;
uint64_t facs_pa;
if (fadt->header.revision >= 5 &&
fadt->header.length >= ACPI_FADT_V5_SIZE) {
acpi_sinfo.sleep_control = fadt->sleep_control;
acpi_sinfo.sleep_status = fadt->sleep_status;
printk(KERN_INFO PREFIX
"v5 SLEEP INFO: control[%d:%"PRIx64"],"
" status[%d:%"PRIx64"]\n",
acpi_sinfo.sleep_control.space_id,
acpi_sinfo.sleep_control.address,
acpi_sinfo.sleep_status.space_id,
acpi_sinfo.sleep_status.address);
if ((fadt->sleep_control.address &&
(fadt->sleep_control.bit_offset ||
fadt->sleep_control.bit_width !=
fadt->sleep_control.access_width * 8)) ||
(fadt->sleep_status.address &&
(fadt->sleep_status.bit_offset ||
fadt->sleep_status.bit_width !=
fadt->sleep_status.access_width * 8))) {
printk(KERN_WARNING PREFIX
"Invalid sleep control/status register data:"
" %#x:%#x:%#x %#x:%#x:%#x\n",
fadt->sleep_control.bit_offset,
fadt->sleep_control.bit_width,
fadt->sleep_control.access_width,
fadt->sleep_status.bit_offset,
fadt->sleep_status.bit_width,
fadt->sleep_status.access_width);
fadt->sleep_control.address = 0;
fadt->sleep_status.address = 0;
}
}
if (fadt->flags & ACPI_FADT_HW_REDUCED)
goto bad;
acpi_fadt_copy_address(pm1a_cnt, pm1a_control, pm1_control);
acpi_fadt_copy_address(pm1b_cnt, pm1b_control, pm1_control);
acpi_fadt_copy_address(pm1a_evt, pm1a_event, pm1_event);
acpi_fadt_copy_address(pm1b_evt, pm1b_event, pm1_event);
printk(KERN_INFO PREFIX
"SLEEP INFO: pm1x_cnt[%"PRIx64",%"PRIx64"], "
"pm1x_evt[%"PRIx64",%"PRIx64"]\n",
acpi_sinfo.pm1a_cnt_blk.address,
acpi_sinfo.pm1b_cnt_blk.address,
acpi_sinfo.pm1a_evt_blk.address,
acpi_sinfo.pm1b_evt_blk.address);
/* Now FACS... */
facs_pa = ((fadt->header.revision >= FADT2_REVISION_ID)
? fadt->Xfacs : (uint64_t)fadt->facs);
if (fadt->facs && ((uint64_t)fadt->facs != facs_pa)) {
printk(KERN_WARNING PREFIX
"32/64X FACS address mismatch in FADT - "
"%08x/%016"PRIx64", using 32\n",
fadt->facs, facs_pa);
facs_pa = (uint64_t)fadt->facs;
}
if (!facs_pa)
goto bad;
facs = (struct acpi_table_facs *)
__acpi_map_table(facs_pa, sizeof(struct acpi_table_facs));
if (!facs)
goto bad;
if (strncmp(facs->signature, "FACS", 4)) {
printk(KERN_ERR PREFIX "Invalid FACS signature %.4s\n",
facs->signature);
goto bad;
}
if (facs->length < 24) {
printk(KERN_ERR PREFIX "Invalid FACS table length: %#x",
facs->length);
goto bad;
}
if (facs->length < 64)
printk(KERN_WARNING PREFIX
"FACS is shorter than ACPI spec allow: %#x",
facs->length);
acpi_sinfo.wakeup_vector = facs_pa +
offsetof(struct acpi_table_facs, firmware_waking_vector);
acpi_sinfo.vector_width = 32;
printk(KERN_INFO PREFIX
" wakeup_vec[%"PRIx64"], vec_size[%x]\n",
acpi_sinfo.wakeup_vector, acpi_sinfo.vector_width);
return;
bad:
memset(&acpi_sinfo, 0,
offsetof(struct acpi_sleep_info, sleep_control));
memset(&acpi_sinfo.sleep_status + 1, 0,
(long)(&acpi_sinfo + 1) - (long)(&acpi_sinfo.sleep_status + 1));
}
