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Commit 9b49c3ab authored by Monk Liu's avatar Monk Liu Committed by Alex Deucher
Browse files

drm/amdgpu:alloc mqd backup 



this is required for restoring the mqds after GPU reset.

Signed-off-by: default avatarMonk Liu <Monk.Liu@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarXiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 223049cd

drivers/gpu/drm/amd/amdgpu/amdgpu.h

+1 −0
Original line number Diff line number Diff line
@@ -783,6 +783,7 @@ 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 {

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

+10 −0
Original line number Diff line number Diff line
@@ -7315,6 +7315,11 @@ 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 */
@@ -7329,6 +7334,11 @@ 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);

		}

	}