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drm/amdgpu:alloc mqd backup

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this is required for restoring the mqds after GPU reset.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Monk Liu 2017-01-26 15:33:52 +08:00 • committed by Alex Deucher
commit 9b49c3ab06
2 changed files with 11 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View file

@ -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 {

10
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
View file

@ -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);
}
}