diff options
author | Evan Quan <evan.quan@amd.com> | 2019-01-14 09:06:54 +0300 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2019-01-26 00:15:34 +0300 |
commit | 7ca881a8651bdeffd99ba8e0010160f9bf60673e (patch) | |
tree | 2eae8b802c105eac32ca7d4027eb7dd7d52115b1 /drivers/gpu/drm/amd/powerplay/amd_powerplay.c | |
parent | b61857b5e365889d67a6296c413df396032d374d (diff) | |
download | linux-7ca881a8651bdeffd99ba8e0010160f9bf60673e.tar.xz |
drm/amd/powerplay: support enabled ppfeatures retrieving and setting V3
User can use "ppfeatures" sysfs interface to retrieve and set enabled
powerplay features.
V2: expose this feature for Vega10 and later dGPUs
V3: squash in removal of unused variable (Alex)
Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/amd_powerplay.c')
-rw-r--r-- | drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index 5d8b5d3c2453..3f73f7cd18b9 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -1455,6 +1455,46 @@ static int pp_set_asic_baco_state(void *handle, int state) return 0; } +static int pp_get_ppfeature_status(void *handle, char *buf) +{ + struct pp_hwmgr *hwmgr = handle; + int ret = 0; + + if (!hwmgr || !hwmgr->pm_en || !buf) + return -EINVAL; + + if (hwmgr->hwmgr_func->get_ppfeature_status == NULL) { + pr_info_ratelimited("%s was not implemented.\n", __func__); + return -EINVAL; + } + + mutex_lock(&hwmgr->smu_lock); + ret = hwmgr->hwmgr_func->get_ppfeature_status(hwmgr, buf); + mutex_unlock(&hwmgr->smu_lock); + + return ret; +} + +static int pp_set_ppfeature_status(void *handle, uint64_t ppfeature_masks) +{ + struct pp_hwmgr *hwmgr = handle; + int ret = 0; + + if (!hwmgr || !hwmgr->pm_en) + return -EINVAL; + + if (hwmgr->hwmgr_func->set_ppfeature_status == NULL) { + pr_info_ratelimited("%s was not implemented.\n", __func__); + return -EINVAL; + } + + mutex_lock(&hwmgr->smu_lock); + ret = hwmgr->hwmgr_func->set_ppfeature_status(hwmgr, ppfeature_masks); + mutex_unlock(&hwmgr->smu_lock); + + return ret; +} + static const struct amd_pm_funcs pp_dpm_funcs = { .load_firmware = pp_dpm_load_fw, .wait_for_fw_loading_complete = pp_dpm_fw_loading_complete, @@ -1508,4 +1548,6 @@ static const struct amd_pm_funcs pp_dpm_funcs = { .get_asic_baco_capability = pp_get_asic_baco_capability, .get_asic_baco_state = pp_get_asic_baco_state, .set_asic_baco_state = pp_set_asic_baco_state, + .get_ppfeature_status = pp_get_ppfeature_status, + .set_ppfeature_status = pp_set_ppfeature_status, }; |