> -----Original Message-----
> From: amd-gfx [mailto:amd-gfx-boun...@lists.freedesktop.org] On Behalf
> Of Monk Liu
> Sent: Wednesday, February 08, 2017 4:27 AM
> To: amd-gfx@lists.freedesktop.org
> Cc: Liu, Monk
> Subject: [PATCH 08/11] drm/amdgpu:alloc mqd backup
>
> this is required for restoring the mqds after GPU reset.
>
> Change-Id: I84f821faa657a5d942c33d30f206eb66b579c2f8
> Signed-off-by: Monk Liu <monk....@amd.com>
Reviewed-by: Alex Deucher <alexander.deuc...@amd.com>
> ---
> drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 +
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 10 ++++++++++
> 2 files changed, 11 insertions(+)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> index acd9970..73086d0 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> @@ -781,6 +781,7 @@ struct amdgpu_mec {
> u32 num_pipe;
> u32 num_mec;
> u32 num_queue;
> + struct vi_mqd *mqd_backup[AMDGPU_MAX_COMPUTE_RINGS +
> 1];
> };
>
> struct amdgpu_kiq {
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index 8f545992..b0612d1 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -7309,6 +7309,11 @@ static int gfx_v8_0_compute_mqd_soft_init(struct
> amdgpu_device *adev)
> dev_warn(adev->dev, "failed to create ring mqd ob
> (%d)", r);
> return r;
> }
> +
> + /* prepare MQD backup */
> + adev-
> >gfx.mec.mqd_backup[AMDGPU_MAX_COMPUTE_RINGS] =
> kmalloc(sizeof(struct vi_mqd), GFP_KERNEL);
> + if (!adev-
> >gfx.mec.mqd_backup[AMDGPU_MAX_COMPUTE_RINGS])
> + dev_warn(adev->dev, "no memory to create
> MQD backup for ring %s\n", ring->name);
> }
>
> /* create MQD for each KCQ */
> @@ -7323,6 +7328,11 @@ static int gfx_v8_0_compute_mqd_soft_init(struct
> amdgpu_device *adev)
> dev_warn(adev->dev, "failed to create ring
> mqd ob (%d)", r);
> return r;
> }
> +
> + /* prepare MQD backup */
> + adev->gfx.mec.mqd_backup[i] =
> kmalloc(sizeof(struct vi_mqd), GFP_KERNEL);
> + if (!adev->gfx.mec.mqd_backup[i])
> + dev_warn(adev->dev, "no memory to create
> MQD backup for ring %s\n", ring->name);
> }
> }
>
> --
> 2.7.4
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
