diff options
| author | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-05-29 14:19:15 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-07-07 17:21:07 +0000 |
| commit | 3a9cde9ab630fa34240b16f7e6ae10b5a61aa67e (patch) | |
| tree | b85c33d30756850725c2866e8394b442a5faca5c /src/drivers/intel | |
| parent | 7eb1136c27a839a18a4224b970b5a61587e29bd7 (diff) | |
dptf: Add support for Critical Policies
This patch adds support for DPTF Critical Policies, which are consist
of Method definitions only. They are `_CRT` and `_HOT`, which are
defined as temperature thresholds that, when exceeded, will execute a
graceful suspend or a graceful shutdown, respectively.
BUG=b:143539650
TEST=compiles
Change-Id: I711ecdcf17ae8f6e653f33069201da4515ace85e
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41887
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/drivers/intel')
| -rw-r--r-- | src/drivers/intel/dptf/chip.h | 1 | ||||
| -rw-r--r-- | src/drivers/intel/dptf/dptf.c | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/src/drivers/intel/dptf/chip.h b/src/drivers/intel/dptf/chip.h index 0cd2ad2063..8d77603f9e 100644 --- a/src/drivers/intel/dptf/chip.h +++ b/src/drivers/intel/dptf/chip.h @@ -8,6 +8,7 @@ struct drivers_intel_dptf_config { struct { struct dptf_active_policy active[DPTF_MAX_ACTIVE_POLICIES]; + struct dptf_critical_policy critical[DPTF_MAX_CRITICAL_POLICIES]; struct dptf_passive_policy passive[DPTF_MAX_PASSIVE_POLICIES]; } policies; }; diff --git a/src/drivers/intel/dptf/dptf.c b/src/drivers/intel/dptf/dptf.c index 74f481294d..5cad07dade 100644 --- a/src/drivers/intel/dptf/dptf.c +++ b/src/drivers/intel/dptf/dptf.c @@ -41,6 +41,11 @@ static bool is_participant_used(const struct drivers_intel_dptf_config *config, config->policies.passive[i].target == participant) return true; + /* Critical? */ + for (i = 0; i < DPTF_MAX_CRITICAL_POLICIES; ++i) + if (config->policies.critical[i].source == participant) + return true; + /* Check fan as well (its use is implicit in the Active policy) */ if (participant == DPTF_FAN && config->policies.active[0].target != DPTF_NONE) return true; @@ -64,6 +69,9 @@ static void dptf_fill_ssdt(const struct device *dev) dptf_write_passive_policies(config->policies.passive, DPTF_MAX_PASSIVE_POLICIES); + dptf_write_critical_policies(config->policies.critical, + DPTF_MAX_CRITICAL_POLICIES); + printk(BIOS_INFO, "\\_SB.DPTF: %s at %s\n", dev->chip_ops->name, dev_path(dev)); } |