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-rw-r--r--drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index c605a1885374..5400cac02087 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -1545,8 +1545,11 @@ static void gmc_v9_0_init_golden_registers(struct amdgpu_device *adev)
*/
void gmc_v9_0_restore_registers(struct amdgpu_device *adev)
{
- if (adev->asic_type == CHIP_RAVEN)
+ if (adev->asic_type == CHIP_RAVEN) {
WREG32_SOC15(DCE, 0, mmDCHUBBUB_SDPIF_MMIO_CNTRL_0, adev->gmc.sdpif_register);
+ WARN_ON(adev->gmc.sdpif_register !=
+ RREG32_SOC15(DCE, 0, mmDCHUBBUB_SDPIF_MMIO_CNTRL_0));
+ }
}
/**