[PATCH] drm/amdgpu: disable vcn power control for now

[Alex Deucher]

On Thu, Jul 27, 2017 at 12:17 PM, Leo Liu <leo.liu at amd.com> wrote:
> The dpm control for vcn has been moved to firmware, kernel always spins
> "amdgpu: [powerplay] pp_dpm_powergate_uvd was not implemented", each
> time when application runs, disable it for now till pg/cg. Also remove
> clock manual setting when dpm disabled, which was inherited from uvd.
>
> Signed-off-by: Leo Liu <leo.liu at amd.com>

Reviewed-by: Alex Deucher <alexander.deucher at amd.com>

> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 14 ++++++--------
>  1 file changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
> index 09190fa..d58ca82 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
> @@ -209,9 +209,9 @@ 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
>                         amdgpu_dpm_enable_uvd(adev, false);
> -               } else {
> -                       amdgpu_asic_set_uvd_clocks(adev, 0, 0);
> +                       */
>                 }
>         } else {
>                 schedule_delayed_work(&adev->vcn.idle_work, VCN_IDLE_TIMEOUT);
> @@ -223,12 +223,10 @@ void amdgpu_vcn_ring_begin_use(struct amdgpu_ring *ring)
>         struct amdgpu_device *adev = ring->adev;
>         bool set_clocks = !cancel_delayed_work_sync(&adev->vcn.idle_work);
>
> -       if (set_clocks) {
> -               if (adev->pm.dpm_enabled) {
> -                       amdgpu_dpm_enable_uvd(adev, true);
> -               } else {
> -                       amdgpu_asic_set_uvd_clocks(adev, 53300, 40000);
> -               }
> +       if (set_clocks && adev->pm.dpm_enabled) {
> +               /* might be used when with pg/cg
> +               amdgpu_dpm_enable_uvd(adev, true);
> +               */
>         }
>  }
>
> --
> 2.7.4
>
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