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authorEvan Quan <evan.quan@amd.com>2019-01-14 14:06:54 +0800
committerAlex Deucher <alexander.deucher@amd.com>2019-01-25 16:15:34 -0500
commit7ca881a8651bdeffd99ba8e0010160f9bf60673e (patch)
tree2eae8b802c105eac32ca7d4027eb7dd7d52115b1 /drivers/gpu/drm/amd/powerplay/amd_powerplay.c
parentb61857b5e365889d67a6296c413df396032d374d (diff)
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.c42
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,
};