diff options
| author | Tim Wawrzynczak <twawrzynczak@chromium.org> | 2020-05-29 14:46:19 -0600 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-07-07 17:23:16 +0000 |
| commit | bb5c255907378a5c5798b5dab3616df1e63d3ee7 (patch) | |
| tree | 6998607d8ef4942b7c547131c121cd25264f61d7 /src/drivers | |
| parent | 2ad8ffed6fc3d0865d8dc066dcbf6ef2e369794c (diff) | |
| download | coreboot-bb5c255907378a5c5798b5dab3616df1e63d3ee7.tar.xz | |
dptf: Add support for Running Average Power Limits
This change adds support for emitting the PPCC table, which describes
the ranges available as knobs for DPTF to tune. It can support min/max
power, min/max time window for averaging, and the minimum adjustment size
(granularity or step size) of each power limit. The current implementation
only supports PL1 and PL2.
BUG=b:143539650
TEST=compiles
Change-Id: I67e80d661ea5bb79980ef285eca40c9a4b0f1849
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41890
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/intel/dptf/chip.h | 1 | ||||
| -rw-r--r-- | src/drivers/intel/dptf/dptf.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/src/drivers/intel/dptf/chip.h b/src/drivers/intel/dptf/chip.h index cc4ae47caf..0d2c25cf61 100644 --- a/src/drivers/intel/dptf/chip.h +++ b/src/drivers/intel/dptf/chip.h @@ -15,6 +15,7 @@ struct drivers_intel_dptf_config { struct { struct dptf_charger_perf charger_perf[DPTF_MAX_CHARGER_PERF_STATES]; struct dptf_fan_perf fan_perf[DPTF_MAX_FAN_PERF_STATES]; + struct dptf_power_limits power_limits; } controls; }; diff --git a/src/drivers/intel/dptf/dptf.c b/src/drivers/intel/dptf/dptf.c index bfc04200e0..15a7d1297b 100644 --- a/src/drivers/intel/dptf/dptf.c +++ b/src/drivers/intel/dptf/dptf.c @@ -75,6 +75,7 @@ static void dptf_fill_ssdt(const struct device *dev) /* Controls */ dptf_write_charger_perf(config->controls.charger_perf, DPTF_MAX_CHARGER_PERF_STATES); dptf_write_fan_perf(config->controls.fan_perf, DPTF_MAX_FAN_PERF_STATES); + dptf_write_power_limits(&config->controls.power_limits); printk(BIOS_INFO, "\\_SB.DPTF: %s at %s\n", dev->chip_ops->name, dev_path(dev)); } |