diff --git a/drivers/gpu/drm/amd/amdgpu/cik.c b/drivers/gpu/drm/amd/amdgpu/cik.c
index 4c21c881ef41ae87af49423effbc2d791b335a6e..4c80338992adce8805fd0dd614021072ea96b685 100644
--- a/drivers/gpu/drm/amd/amdgpu/cik.c
+++ b/drivers/gpu/drm/amd/amdgpu/cik.c
@@ -1179,6 +1179,8 @@ static int cik_gpu_pci_config_reset(struct amdgpu_device *adev)
 	/* wait for asic to come out of reset */
 	for (i = 0; i < adev->usec_timeout; i++) {
 		if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff) {
+			/* enable BM */
+			pci_set_master(adev->pdev);
 			r = 0;
 			break;
 		}
diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c
index 064122bfa6f95903bc89da6aeb8cd01be5b2414c..e05e722ef6c713ecbfd523097bc1adb7b5debaa9 100644
--- a/drivers/gpu/drm/amd/amdgpu/vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/vi.c
@@ -612,8 +612,11 @@ static int vi_gpu_pci_config_reset(struct amdgpu_device *adev)
 
 	/* wait for asic to come out of reset */
 	for (i = 0; i < adev->usec_timeout; i++) {
-		if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff)
+		if (RREG32(mmCONFIG_MEMSIZE) != 0xffffffff) {
+			/* enable BM */
+			pci_set_master(adev->pdev);
 			return 0;
+		}
 		udelay(1);
 	}
 	return -EINVAL;