diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2021-01-21 16:05:26 +0200 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2021-01-23 20:31:09 +0000 |
| commit | 2787237dd52550b5d7e1dc3dabcf380126ff804c (patch) | |
| tree | 33cbe7d7d77d20fa4c142c8af7a5ffb82d78cd56 /src/acpi | |
| parent | 10f7f997ad439681b959962682cafc1993677c56 (diff) | |
ACPI: Add helpers for CBMEM_ID_POWER_STATE
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>
Diffstat (limited to 'src/acpi')
| -rw-r--r-- | src/acpi/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/acpi/acpi_pm.c | 43 |
2 files changed, 45 insertions, 2 deletions
diff --git a/src/acpi/Makefile.inc b/src/acpi/Makefile.inc index 1cd837dd88..4d8f3ad892 100644 --- a/src/acpi/Makefile.inc +++ b/src/acpi/Makefile.inc @@ -3,7 +3,6 @@ ifeq ($(CONFIG_HAVE_ACPI_TABLES),y) ramstage-y += acpi.c -ramstage-y += acpi_pm.c ramstage-y += acpigen.c ramstage-y += acpigen_dptf.c ramstage-y += acpigen_dsm.c @@ -17,7 +16,8 @@ ramstage-y += pld.c ramstage-y += sata.c ramstage-y += soundwire.c -postcar-y += acpi_pm.c +all-y += acpi_pm.c +smm-y += acpi_pm.c ifneq ($(wildcard src/mainboard/$(MAINBOARDDIR)/acpi_tables.c),) ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/acpi_tables.c diff --git a/src/acpi/acpi_pm.c b/src/acpi/acpi_pm.c index c1e99962a9..bee5616e57 100644 --- a/src/acpi/acpi_pm.c +++ b/src/acpi/acpi_pm.c @@ -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; +} |