drm/amdgpu/mmhub2.3: print client id string for mmhub

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@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
index b39dc2023b5fe94657b5a705165e96d385d032f9..3a248c8cd0b9528e1728d681a3b89e62e23163f7 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v2_3.c
@@ -31,6 +31,30 @@
 
 #include "soc15_common.h"
 
+static const char *mmhub_client_ids_vangogh[][2] = {
+       [0][0] = "MP0",
+       [1][0] = "MP1",
+       [2][0] = "DCEDMC",
+       [3][0] = "DCEVGA",
+       [13][0] = "UTCL2",
+       [26][0] = "OSS",
+       [27][0] = "HDP",
+       [28][0] = "VCN",
+       [29][0] = "VCNU",
+       [30][0] = "JPEG",
+       [0][1] = "MP0",
+       [1][1] = "MP1",
+       [2][1] = "DCEDMC",
+       [3][1] = "DCEVGA",
+       [4][1] = "DCEDWB",
+       [5][1] = "XDP",
+       [26][1] = "OSS",
+       [27][1] = "HDP",
+       [28][1] = "VCN",
+       [29][1] = "VCNU",
+       [30][1] = "JPEG",
+};
+
 static uint32_t mmhub_v2_3_get_invalidate_req(unsigned int vmid,
                                              uint32_t flush_type)
 {
@@ -55,12 +79,27 @@ static void
 mmhub_v2_3_print_l2_protection_fault_status(struct amdgpu_device *adev,
                                             uint32_t status)
 {
+       uint32_t cid, rw;
+       const char *mmhub_cid = NULL;
+
+       cid = REG_GET_FIELD(status,
+                           MMVM_L2_PROTECTION_FAULT_STATUS, CID);
+       rw = REG_GET_FIELD(status,
+                          MMVM_L2_PROTECTION_FAULT_STATUS, RW);
+
        dev_err(adev->dev,
                "MMVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
                status);
-       dev_err(adev->dev, "\t Faulty UTCL2 client ID: 0x%lx\n",
-               REG_GET_FIELD(status,
-               MMVM_L2_PROTECTION_FAULT_STATUS, CID));
+       switch (adev->asic_type) {
+       case CHIP_VANGOGH:
+               mmhub_cid = mmhub_client_ids_vangogh[cid][rw];
+               break;
+       default:
+               mmhub_cid = NULL;
+               break;
+       }
+       dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n",
+               mmhub_cid ? mmhub_cid : "unknown", cid);
        dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
                REG_GET_FIELD(status,
                MMVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
@@ -73,9 +112,7 @@ mmhub_v2_3_print_l2_protection_fault_status(struct amdgpu_device *adev,
        dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
                REG_GET_FIELD(status,
                MMVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR));
-       dev_err(adev->dev, "\t RW: 0x%lx\n",
-               REG_GET_FIELD(status,
-               MMVM_L2_PROTECTION_FAULT_STATUS, RW));
+       dev_err(adev->dev, "\t RW: 0x%x\n", rw);
 }
 
 static void mmhub_v2_3_setup_vm_pt_regs(struct amdgpu_device *adev,