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| author |   Alex Deucher <alexander.deucher@amd.com> | 2013-06-13 18:26:25 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-07-14 10:11:28 -0400 |
| commit | 54e2e49ce28ff7ac67b93e7e9e44702552b04a69 (patch) | |
| tree | 8d24bc3fabb6dfd63fd9a6078fd0b0639222ab73 /drivers/gpu/drm/radeon/ni.c | |
| parent | drm/radeon: use radeon device for request firmware (diff) | |
| download | linux-dev-54e2e49ce28ff7ac67b93e7e9e44702552b04a69.tar.xz linux-dev-54e2e49ce28ff7ac67b93e7e9e44702552b04a69.zip | |
drm/radeon: add fault decode function for cayman/TN (v2)
Helpful for debugging GPUVM errors as we can see what
hw block and page generated the fault in the log.
v2: simplify fault decoding
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/ni.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/ni.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 465b17e1fa4e..56bd4f3be4fe 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -2450,6 +2450,167 @@ void cayman_vm_fini(struct radeon_device *rdev) { } +/** + * cayman_vm_decode_fault - print human readable fault info + * + * @rdev: radeon_device pointer + * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value + * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value + * + * Print human readable fault information (cayman/TN). + */ +void cayman_vm_decode_fault(struct radeon_device *rdev, + u32 status, u32 addr) +{ + u32 mc_id = (status & MEMORY_CLIENT_ID_MASK) >> MEMORY_CLIENT_ID_SHIFT; + u32 vmid = (status & FAULT_VMID_MASK) >> FAULT_VMID_SHIFT; + u32 protections = (status & PROTECTIONS_MASK) >> PROTECTIONS_SHIFT; + char *block; + + switch (mc_id) { + case 32: + case 16: + case 96: + case 80: + case 160: + case 144: + case 224: + case 208: + block = "CB"; + break; + case 33: + case 17: + case 97: + case 81: + case 161: + case 145: + case 225: + case 209: + block = "CB_FMASK"; + break; + case 34: + case 18: + case 98: + case 82: + case 162: + case 146: + case 226: + case 210: + block = "CB_CMASK"; + break; + case 35: + case 19: + case 99: + case 83: + case 163: + case 147: + case 227: + case 211: + block = "CB_IMMED"; + break; + case 36: + case 20: + case 100: + case 84: + case 164: + case 148: + case 228: + case 212: + block = "DB"; + break; + case 37: + case 21: + case 101: + case 85: + case 165: + case 149: + case 229: + case 213: + block = "DB_HTILE"; + break; + case 38: + case 22: + case 102: + case 86: + case 166: + case 150: + case 230: + case 214: + block = "SX"; + break; + case 39: + case 23: + case 103: + case 87: + case 167: + case 151: + case 231: + case 215: + block = "DB_STEN"; + break; + case 40: + case 24: + case 104: + case 88: + case 232: + case 216: + case 168: + case 152: + block = "TC_TFETCH"; + break; + case 41: + case 25: + case 105: + case 89: + case 233: + case 217: + case 169: + case 153: + block = "TC_VFETCH"; + break; + case 42: + case 26: + case 106: + case 90: + case 234: + case 218: + case 170: + case 154: + block = "VC"; + break; + case 112: + block = "CP"; + break; + case 113: + case 114: + block = "SH"; + break; + case 115: + block = "VGT"; + break; + case 178: + block = "IH"; + break; + case 51: + block = "RLC"; + break; + case 55: + block = "DMA"; + break; + case 56: + block = "HDP"; + break; + default: + block = "unknown"; + break; + } + + printk("VM fault (0x%02x, vmid %d) at page %u, %s from %s (%d)\n", + protections, vmid, addr, + (status & MEMORY_CLIENT_RW_MASK) ? "write" : "read", + block, mc_id); +} + #define R600_ENTRY_VALID (1 << 0) #define R600_PTE_SYSTEM (1 << 1) #define R600_PTE_SNOOPED (1 << 2) |