diff options
| author | Eric Huang <JinHuiEric.Huang@amd.com> | 2016-02-11 23:54:45 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-05-05 03:27:02 +0300 |
| commit | 65f85e7d8216afe458e7d798ad12e7a82a55162f (patch) | |
| tree | 9d826ebf9aeb144ce129a85bca2c7a0e8ac1f925 | |
| parent | bacec8985f596a6c6fadb63966f52501d2ed2367 (diff) | |
| download | linux-65f85e7d8216afe458e7d798ad12e7a82a55162f.tar.xz | |
drm/amd/powerplay: add GFX per cu powergating support through SMU/powerplay
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/inc/hwmgr.h | 1 |
2 files changed, 15 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index 9c742e0a9d35..94b78095e1ce 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -267,7 +267,20 @@ static int pp_set_clockgating_state(void *handle, static int pp_set_powergating_state(void *handle, enum amd_powergating_state state) { - return 0; + struct pp_hwmgr *hwmgr; + + if (handle == NULL) + return -EINVAL; + + hwmgr = ((struct pp_instance *)handle)->hwmgr; + + if (hwmgr == NULL || hwmgr->hwmgr_func == NULL || + hwmgr->hwmgr_func->enable_per_cu_power_gating == NULL) + return -EINVAL; + + /* Enable/disable GFX per cu powergating through SMU */ + return hwmgr->hwmgr_func->enable_per_cu_power_gating(hwmgr, + state == AMD_PG_STATE_GATE ? true : false); } static int pp_suspend(void *handle) diff --git a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h index e1ca36c79456..12285a989eff 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h +++ b/drivers/gpu/drm/amd/powerplay/inc/hwmgr.h @@ -337,6 +337,7 @@ struct pp_hwmgr_func { int (*set_pp_table)(struct pp_hwmgr *hwmgr, const char *buf, size_t size); int (*force_clock_level)(struct pp_hwmgr *hwmgr, enum pp_clock_type type, int level); int (*print_clock_levels)(struct pp_hwmgr *hwmgr, enum pp_clock_type type, char *buf); + int (*enable_per_cu_power_gating)(struct pp_hwmgr *hwmgr, bool enable); }; struct pp_table_func { |