From: Monk Liu <monk....@amd.com>
This help fix reloading driver hang issue of SDMA
ring
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Reviewed-by: Christian König <christian.koenig at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
index 8bf84ef..48618ee 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
@@ -115,6 +115,7 @@ int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev,
return r;
}
r = amdgpu_bo_kmap(sa_manager->bo, &sa_manager->cpu_ptr);
+ memset(sa_manager->cpu_ptr, 0, sa_manager->size);
amdgpu_bo_unreserve(sa_manager->bo);
return r;
}
--
2.5.5
