drm/amd/amdgpu: switch on/off vcn power profile mode

switch to vcn power profile mode when a video is playing.
this can optimize the power/performance when the workload
is on the vcn.

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
index 0145504e408b6805e0bed68eb58dcfea01dc3a95..7e19a66567150da602e690253b8a017dcffa6cc6 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
@@ -332,6 +332,7 @@ static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
                container_of(work, struct amdgpu_device, vcn.idle_work.work);
        unsigned int fences = 0, fence[AMDGPU_MAX_VCN_INSTANCES] = {0};
        unsigned int i, j;
+       int r = 0;
 
        for (j = 0; j < adev->vcn.num_vcn_inst; ++j) {
                if (adev->vcn.harvest_config & (1 << j))
@@ -361,6 +362,10 @@ static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
                amdgpu_gfx_off_ctrl(adev, true);
                amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,
                       AMD_PG_STATE_GATE);
+               r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_VIDEO,
+                               false);
+               if (r)
+                       dev_warn(adev->dev, "(%d) failed to disable video power profile mode\n", r);
        } else {
                schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
        }
@@ -369,11 +374,17 @@ static void amdgpu_vcn_idle_work_handler(struct work_struct *work)
 void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
 {
        struct amdgpu_device *adev = ring->adev;
+       int r = 0;
 
        atomic_inc(&adev->vcn.total_submission_cnt);
 
-       if (!cancel_delayed_work_sync(&adev->vcn.idle_work))
+       if (!cancel_delayed_work_sync(&adev->vcn.idle_work)) {
                amdgpu_gfx_off_ctrl(adev, false);
+               r = amdgpu_dpm_switch_power_profile(adev, PP_SMC_POWER_PROFILE_VIDEO,
+                               true);
+               if (r)
+                       dev_warn(adev->dev, "(%d) failed to switch to video power profile mode\n", r);
+       }
 
        mutex_lock(&adev->vcn.vcn_pg_lock);
        amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN,