[PATCH 2/2] drm/amdgpu/gmc10: print client id string for gfxhub

[Alex Deucher]

Print the name of the client rather than the number.  This
makes it easier to debug what block is causing the fault.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c | 30 +++++++++++++++++++++---
 drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c | 30 +++++++++++++++++++++---
 2 files changed, 54 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
index 76acd7f7723e..b882ac59879a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c
@@ -31,6 +31,27 @@
 
 #include "soc15_common.h"
 
+static const char *gfxhub_client_ids[] = {
+	"CB/DB",
+	"Reserved",
+	"GE1",
+	"GE2",
+	"CPF",
+	"CPC",
+	"CPG",
+	"RLC",
+	"TCP",
+	"SQC (inst)",
+	"SQC (data)",
+	"SQG",
+	"Reserved",
+	"SDMA0",
+	"SDMA1",
+	"GCR",
+	"SDMA2",
+	"SDMA3",
+};
+
 static uint32_t gfxhub_v2_0_get_invalidate_req(unsigned int vmid,
 					       uint32_t flush_type)
 {
@@ -55,12 +76,15 @@ static void
 gfxhub_v2_0_print_l2_protection_fault_status(struct amdgpu_device *adev,
 					     uint32_t status)
 {
+	u32 cid = REG_GET_FIELD(status,
+				GCVM_L2_PROTECTION_FAULT_STATUS, CID);
+
 	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 Faulty UTCL2 client ID: %s (0x%x)\n",
+		cid >= ARRAY_SIZE(gfxhub_client_ids) ? "unknown" : gfxhub_client_ids[cid],
+		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/gfxhub_v2_1.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c
index 80c906a0383f..237a9ff5afa0 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v2_1.c
@@ -31,6 +31,27 @@
 
 #include "soc15_common.h"
 
+static const char *gfxhub_client_ids[] = {
+	"CB/DB",
+	"Reserved",
+	"GE1",
+	"GE2",
+	"CPF",
+	"CPC",
+	"CPG",
+	"RLC",
+	"TCP",
+	"SQC (inst)",
+	"SQC (data)",
+	"SQG",
+	"Reserved",
+	"SDMA0",
+	"SDMA1",
+	"GCR",
+	"SDMA2",
+	"SDMA3",
+};
+
 static uint32_t gfxhub_v2_1_get_invalidate_req(unsigned int vmid,
 					       uint32_t flush_type)
 {
@@ -55,12 +76,15 @@ static void
 gfxhub_v2_1_print_l2_protection_fault_status(struct amdgpu_device *adev,
 					     uint32_t status)
 {
+	u32 cid = REG_GET_FIELD(status,
+				GCVM_L2_PROTECTION_FAULT_STATUS, CID);
+
 	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 Faulty UTCL2 client ID: %s (0x%x)\n",
+		cid >= ARRAY_SIZE(gfxhub_client_ids) ? "unknown" : gfxhub_client_ids[cid],
+		cid);
 	dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
 		REG_GET_FIELD(status,
 		GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
-- 
2.25.4