[PATCH 2/2] drm/amdgpu: Configure doorbell to maximum slots

[Alex Deucher]

On Fri, Jun 12, 2015 at 4:08 AM, Oded Gabbay <oded.gabbay at gmail.com> wrote:
> From: Ben Goz <ben.goz at amd.com>
>
> Signed-off-by: Ben Goz <ben.goz at amd.com>
> Acked-by: Oded Gabbay <oded.gabbay at amd.com>

This patch effectively reverts a fix for a hw bug IIRC.

Alex

> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index e4aeb74..7683d7f 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -3128,7 +3128,7 @@ static int gfx_v8_0_cp_compute_resume(struct amdgpu_device *adev)
>                                 WREG32(mmCP_MEC_DOORBELL_RANGE_LOWER,
>                                        AMDGPU_DOORBELL_KIQ << 2);
>                                 WREG32(mmCP_MEC_DOORBELL_RANGE_UPPER,
> -                                      AMDGPU_DOORBELL_MEC_RING7 << 2);
> +                                               0x7FFFF << 2);
>                         }
>                         tmp = RREG32(mmCP_HQD_PQ_DOORBELL_CONTROL);
>                         tmp = REG_SET_FIELD(tmp, CP_HQD_PQ_DOORBELL_CONTROL,
> --
> 2.4.3
>