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

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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>
This commit is contained in:
Kenneth Feng 2020-11-04 11:24:33 +08:00 • committed by Alex Deucher
parent 5c9a6272e7
commit 5ce71f59bb
1 changed files with 12 additions and 1 deletions
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13
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
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@ -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,