[PATCH] drm/amdgpu: Print UTCL2 client ID on a gpuvm fault

[Oak Zeng]

UTCL2 client ID is useful information to get which
UTCL2 client caused the gpuvm fault. Print it out
for debug purpose

Change-Id: I733d0127b0ee53aa788f194cefa53cbb55b49c11
Signed-off-by: Oak Zeng <Oak.Zeng at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 3 +++
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c  | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index 78d769e..94a6096 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -170,6 +170,9 @@ static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev,
 			dev_err(adev->dev,
 				"GCVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
 				status);
+			dev_err(adev->dev, "\t Faulty UTCL2 client ID: 0x%lx\n",
+				REG_GET_FIELD(status,
+				GCVM_L2_PROTECTION_FAULT_STATUS, CID));
 			dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
 				REG_GET_FIELD(status,
 				GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 8606f87..fecdbc4 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -362,6 +362,9 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
 			dev_err(adev->dev,
 				"VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
 				status);
+			dev_err(adev->dev, "\t Faulty UTCL2 client ID: 0x%lx\n",
+				REG_GET_FIELD(status,
+				VM_L2_PROTECTION_FAULT_STATUS, CID));
 			dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
 				REG_GET_FIELD(status,
 				VM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
-- 
2.7.4