[PATCH 18/18] drm/amdgpu/sriov:init csb for gfxv9

[Monk Liu]

RLC need CSB registers initiated under SRIOV during world switch
otherwise the clear state buffer behav will not be recovered to
current VF scheme after switch back

Change-Id: I3afd82875564c233060b740724bd8031095780f6
Signed-off-by: Monk Liu <Monk.Liu at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index a577bbc..8d677cc 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -2044,8 +2044,10 @@ static int gfx_v9_0_rlc_resume(struct amdgpu_device *adev)
 {
 	int r;
 
-	if (amdgpu_sriov_vf(adev))
+	if (amdgpu_sriov_vf(adev)) {
+		gfx_v9_0_init_csb(adev);
 		return 0;
+	}
 
 	gfx_v9_0_rlc_stop(adev);
 
-- 
2.7.4