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ACPI: Add helpers for CBMEM_ID_POWER_STATE

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Create uniform logging for the (unlikely) case of a CBMEM
entry disappearing.

Change-Id: I7c5414a03d869423c8ae5192a990fde5f9582f2d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49817
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Kyösti Mälkki
2021-01-21 16:05:26 +02:00
committed by Felix Held
parent 10f7f997ad
commit 2787237dd5
24 changed files with 112 additions and 86 deletions
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43
src/acpi/acpi_pm.c
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@@ -1,6 +1,9 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <acpi/acpi.h>
#include <acpi/acpi_pm.h>
#include <cbmem.h>
#include <console/console.h>
#include <smbios.h>
void __weak mainboard_suspend_resume(void)
@@ -24,3 +27,43 @@ uint8_t acpi_get_preferred_pm_profile(void)
return PM_UNSPECIFIED;
}
}
struct chipset_power_state *acpi_get_pm_state(void)
{
static struct chipset_power_state *acpi_pm_state;
if (acpi_pm_state)
return acpi_pm_state;
acpi_pm_state = cbmem_find(CBMEM_ID_POWER_STATE);
return acpi_pm_state;
}
int acpi_pm_state_for_elog(const struct chipset_power_state **ps)
{
*ps = acpi_get_pm_state();
if (!*ps) {
printk(BIOS_ERR, "No CBMEM_ID_POWER_STATE entry, no event recorded in ELOG.\n");
return -1;
}
return 0;
}
int acpi_pm_state_for_rtc(const struct chipset_power_state **ps)
{
*ps = acpi_get_pm_state();
if (!*ps) {
printk(BIOS_ERR, "No CBMEM_ID_POWER_STATE entry, RTC init aborted.\n");
return -1;
}
return 0;
}
int acpi_pm_state_for_wake(const struct chipset_power_state **ps)
{
*ps = acpi_get_pm_state();
if (!*ps) {
printk(BIOS_ERR, "No CBMEM_ID_POWER_STATE entry, wake source unknown.\n");
return -1;
}
return 0;
}