X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=drivers%2Fgpu%2Fdrm%2Famd%2Famdgpu%2Fgmc_v7_0.c;h=fab5471d25d7e3dc3a3605d22c52fd669e919f7b;hb=ef19df60c9506e7ffe78d6a60048936c4e76a0a2;hp=774528ab8704387f00525618b1c48578387b70df;hpb=d71fc239b6915a8b750e9a447311029ff45b6580;p=uclinux-h8%2Flinux.git

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 774528ab8704..fab5471d25d7 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -1262,6 +1262,12 @@ static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
 	addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
 	status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
 	mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
+	/* reset addr and status */
+	WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
+
+	if (!addr && !status)
+		return 0;
+
 	dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
 		entry->src_id, entry->src_data);
 	dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
@@ -1269,8 +1275,6 @@ static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
 	dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
 		status);
 	gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client);
-	/* reset addr and status */
-	WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
 
 	return 0;
 }