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authorMonk Liu <Monk.Liu@amd.com>2016-05-25 16:55:07 +0800
committerAlex Deucher <alexander.deucher@amd.com>2016-06-09 10:48:57 -0400
commit9a005bef5b5b5ceb78ff1138e6d6baf4bbeb8061 (patch)
tree57fa06a005c638159021f5533c45d2c968bc36af /drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
parent768c95e70c4bd33b3da32a15dd33486246f4ca79 (diff)
drm/amdgpu: clear SA bo when created
This help fix reloading driver hang issue of SDMA ring Signed-off-by: Monk Liu <Monk.Liu@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c
index 8bf84efafb04..48618ee324eb 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;
}