[PATCH Review V2 2/2] drm/amdgpu: correct ras enabled flag

[Stanley.Yang <Stanley.Yang@amd.com>]

XGMI RAS should be according to the gmc xgmi physical nodes number,
XGMI RAS should not be enabled if xgmi num_physical_nodes is zero.

Change-Id: Idf3600b30584b10b528e7237d103d84d5097b7e0
Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 4069bce9479f..c2c4d978896c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -2430,6 +2430,13 @@ static void amdgpu_ras_check_supported(struct amdgpu_device *adev)
 			else
 				adev->ras_hw_enabled &= ~(1 << AMDGPU_RAS_BLOCK__VCN |
 							1 << AMDGPU_RAS_BLOCK__JPEG);
+
+			/*
+			 * XGMI RAS is not supported if xgmi num physical nodes
+			 * is zero
+			 */
+			if (adev->gmc.xmgi.num_physical_nodes == 0)
+				adev->ras_hw_enabled &= ~(1 << AMDGPU_RAS_BLOCK__XGMI_WAFL);
 		} else {
 			dev_info(adev->dev, "SRAM ECC is not presented.\n");
 		}
-- 
2.17.1