it requires to initialize HDP_NONSURFACE_BASE, so as to avoid
using the value left by a previous VM under sriov scenario.
Signed-off-by: Emily Deng <emily.d...@amd.com>
Signed-off-by: Tiecheng Zhou <tiecheng.z...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index be729e7..e96684e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1181,6 +1181,11 @@ static int gmc_v9_0_gart_enable(struct amdgpu_device
*adev)
tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL);
WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp);
+ if (amdgpu_sriov_vf(adev)) {
+ WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE,
(adev->gmc.vram_start >> 8));
+ WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE_HI,
(adev->gmc.vram_start >> 40));
+ }
+
/* After HDP is initialized, flush HDP.*/
adev->nbio_funcs->hdp_flush(adev, NULL);
--
2.7.4
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