this is required for restoring the mqds after GPU reset.
Change-Id: I84f821faa657a5d942c33d30f206eb66b579c2f8
Signed-off-by: Monk Liu <[email protected]>
---
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
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