diff options
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index a639cc971e2e..415f622c49e5 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -1454,6 +1454,15 @@ static void sync_point_worker(struct work_struct *work) static void dump_mmu_fault(struct etnaviv_gpu *gpu) { + static const char *fault_reasons[] = { + "slave not present", + "page not present", + "write violation", + "out of bounds", + "read security violation", + "write security violation", + }; + u32 status_reg, status; int i; @@ -1466,18 +1475,25 @@ static void dump_mmu_fault(struct etnaviv_gpu *gpu) dev_err_ratelimited(gpu->dev, "MMU fault status 0x%08x\n", status); for (i = 0; i < 4; i++) { + const char *reason = "unknown"; u32 address_reg; + u32 mmu_status; - if (!(status & (VIVS_MMUv2_STATUS_EXCEPTION0__MASK << (i * 4)))) + mmu_status = (status >> (i * 4)) & VIVS_MMUv2_STATUS_EXCEPTION0__MASK; + if (!mmu_status) continue; + if ((mmu_status - 1) < ARRAY_SIZE(fault_reasons)) + reason = fault_reasons[mmu_status - 1]; + if (gpu->sec_mode == ETNA_SEC_NONE) address_reg = VIVS_MMUv2_EXCEPTION_ADDR(i); else address_reg = VIVS_MMUv2_SEC_EXCEPTION_ADDR; - dev_err_ratelimited(gpu->dev, "MMU %d fault addr 0x%08x\n", i, - gpu_read(gpu, address_reg)); + dev_err_ratelimited(gpu->dev, + "MMU %d fault (%s) addr 0x%08x\n", + i, reason, gpu_read(gpu, address_reg)); } } |