Commit 5ce71f59 authored by Kenneth Feng's avatar Kenneth Feng Committed by Alex Deucher
Browse files

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: default avatarKenneth Feng <kenneth.feng@amd.com>
Reviewed-by: default avatarKevin Wang <kevin1.wang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 5c9a6272

drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c

+12 −1
Original line number Diff line number Diff line
@@ -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,

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