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| author |   Rex Zhu <Rex.Zhu@amd.com> | 2018-05-16 20:18:22 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-05-24 10:07:52 -0500 |
| commit | 22cc6c5e1958e5a08b4c44203d1810ab07ce5a16 (patch) | |
| tree | c7d8453d77bece8c1e8425f18bd256718653f27a /drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | |
| parent | drm/amdgpu: Enable VCN static PG by default on RV (diff) | |
| download | linux-dev-22cc6c5e1958e5a08b4c44203d1810ab07ce5a16.tar.xz linux-dev-22cc6c5e1958e5a08b4c44203d1810ab07ce5a16.zip | |
drm/amdgpu: Add runtime VCN PG support
Enable support for dynamically powering up/down VCN on demand.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index 60468385e6b4..8851bcdfc260 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -212,11 +212,11 @@ static void amdgpu_vcn_idle_work_handler(struct work_struct *work) } if (fences == 0) { - if (adev->pm.dpm_enabled) { - /* might be used when with pg/cg + if (adev->pm.dpm_enabled) amdgpu_dpm_enable_uvd(adev, false); - */ - } + else + amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN, + AMD_PG_STATE_GATE); } else { schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT); } @@ -228,9 +228,11 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring) bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work); if (set_clocks && adev->pm.dpm_enabled) { - /* might be used when with pg/cg - amdgpu_dpm_enable_uvd(adev, true); - */ + if (adev->pm.dpm_enabled) + amdgpu_dpm_enable_uvd(adev, true); + else + amdgpu_device_ip_set_powergating_state(adev, AMD_IP_BLOCK_TYPE_VCN, + AMD_PG_STATE_UNGATE); } } |