[Patch v4 4/4] drm/amdgpu/runpm: enable runpm on baco capable VI+ asics

[Alex Deucher]

On Mon, Feb 10, 2020 at 1:48 PM Rajneesh Bhardwaj
<rajneesh.bhardwaj at amd.com> wrote:
>
> From: Alex Deucher <alexander.deucher at amd.com>
>
> Seems to work reliably on VI+ except for a few so enable runpm barring
> those where baco for runtime power management is not supported.
>
> [rajneesh] Picked https://patchwork.freedesktop.org/patch/335402/ to
> enable runtime pm with baco for kfd. Also fixed a checkpatch warning and
> added extra checks for VEGA20 and ARCTURUS.
>

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

> Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj at amd.com>
> Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> index 3a0ea9096498..0f3563926ad1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
> @@ -170,10 +170,16 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
>         }
>
>         if (amdgpu_device_supports_boco(dev) &&
> -           (amdgpu_runtime_pm != 0)) /* enable runpm by default */
> +           (amdgpu_runtime_pm != 0)) /* enable runpm by default for boco */
>                 adev->runpm = true;
>         else if (amdgpu_device_supports_baco(dev) &&
> -                (amdgpu_runtime_pm > 0)) /* enable runpm if runpm=1 */
> +                (amdgpu_runtime_pm != 0) &&
> +                (adev->asic_type >= CHIP_TOPAZ) &&
> +                (adev->asic_type != CHIP_VEGA20) &&
> +                (adev->asic_type != CHIP_ARCTURUS)) /* enable runpm on VI+ */
> +               adev->runpm = true;
> +       else if (amdgpu_device_supports_baco(dev) &&
> +                (amdgpu_runtime_pm > 0))  /* enable runpm if runpm=1 on CI */
>                 adev->runpm = true;
>
>         /* Call ACPI methods: require modeset init
> --
> 2.17.1
>
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