diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2020-10-06 16:54:35 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-10-05 17:49:39 -0400 |
| commit | 7a41ed8b59ba74ae36adc7f4688feff9e710cf76 (patch) | |
| tree | ff893d4a068196d39880df3103f6f2b39a1a4082 /drivers/gpu/drm | |
| parent | 9cff0879aefeca6eba586f02cad337e409e4f2b0 (diff) | |
drm/amdgpu: add new INFO ioctl query for the last GPU page fault
Add a interface to query the last GPU page fault for the process.
Useful for debugging context lost errors.
v2: split vmhub representation between kernel and userspace
v3: add locking when fetching fault info in INFO IOCTL
Mesa MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23238
libdrm MR: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23238
Cc: samuel.pitoiset@gmail.com
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 20 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 16 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 13 |
4 files changed, 47 insertions, 5 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index d9052475f2fc..d2cf1c39563b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -113,9 +113,10 @@ * gl1c_cache_size, gl2c_cache_size, mall_size, enabled_rb_pipes_mask_hi * 3.53.0 - Support for GFX11 CP GFX shadowing * 3.54.0 - Add AMDGPU_CTX_QUERY2_FLAGS_RESET_IN_PROGRESS support + * - 3.55.0 - Add AMDGPU_INFO_GPUVM_FAULT query */ #define KMS_DRIVER_MAJOR 3 -#define KMS_DRIVER_MINOR 54 +#define KMS_DRIVER_MINOR 55 #define KMS_DRIVER_PATCHLEVEL 0 /* diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 081bd28e2443..6cd77c21048b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -1224,6 +1224,26 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) return copy_to_user(out, max_ibs, min((size_t)size, sizeof(max_ibs))) ? -EFAULT : 0; } + case AMDGPU_INFO_GPUVM_FAULT: { + struct amdgpu_fpriv *fpriv = filp->driver_priv; + struct amdgpu_vm *vm = &fpriv->vm; + struct drm_amdgpu_info_gpuvm_fault gpuvm_fault; + unsigned long flags; + + if (!vm) + return -EINVAL; + + memset(&gpuvm_fault, 0, sizeof(gpuvm_fault)); + + xa_lock_irqsave(&adev->vm_manager.pasids, flags); + gpuvm_fault.addr = vm->fault_info.addr; + gpuvm_fault.status = vm->fault_info.status; + gpuvm_fault.vmhub = vm->fault_info.vmhub; + xa_unlock_irqrestore(&adev->vm_manager.pasids, flags); + + return copy_to_user(out, &gpuvm_fault, + min((size_t)size, sizeof(gpuvm_fault))) ? -EFAULT : 0; + } default: DRM_DEBUG_KMS("Invalid request %d\n", info->query); return -EINVAL; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 91e36b0ad062..4058ed49e5a6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2756,7 +2756,21 @@ void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev, if (vm) { vm->fault_info.addr = addr; vm->fault_info.status = status; - vm->fault_info.vmhub = vmhub; + if (AMDGPU_IS_GFXHUB(vmhub)) { + vm->fault_info.vmhub = AMDGPU_VMHUB_TYPE_GFX; + vm->fault_info.vmhub |= + (vmhub - AMDGPU_GFXHUB_START) << AMDGPU_VMHUB_IDX_SHIFT; + } else if (AMDGPU_IS_MMHUB0(vmhub)) { + vm->fault_info.vmhub = AMDGPU_VMHUB_TYPE_MM0; + vm->fault_info.vmhub |= + (vmhub - AMDGPU_MMHUB0_START) << AMDGPU_VMHUB_IDX_SHIFT; + } else if (AMDGPU_IS_MMHUB1(vmhub)) { + vm->fault_info.vmhub = AMDGPU_VMHUB_TYPE_MM1; + vm->fault_info.vmhub |= + (vmhub - AMDGPU_MMHUB1_START) << AMDGPU_VMHUB_IDX_SHIFT; + } else { + WARN_ONCE(1, "Invalid vmhub %u\n", vmhub); + } } xa_unlock_irqrestore(&adev->vm_manager.pasids, flags); } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 2bf328d9e04b..411d42fecfb6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -124,9 +124,16 @@ struct amdgpu_mem_stats; * layout: max 8 GFXHUB + 4 MMHUB0 + 1 MMHUB1 */ #define AMDGPU_MAX_VMHUBS 13 -#define AMDGPU_GFXHUB(x) (x) -#define AMDGPU_MMHUB0(x) (8 + x) -#define AMDGPU_MMHUB1(x) (8 + 4 + x) +#define AMDGPU_GFXHUB_START 0 +#define AMDGPU_MMHUB0_START 8 +#define AMDGPU_MMHUB1_START 12 +#define AMDGPU_GFXHUB(x) (AMDGPU_GFXHUB_START + (x)) +#define AMDGPU_MMHUB0(x) (AMDGPU_MMHUB0_START + (x)) +#define AMDGPU_MMHUB1(x) (AMDGPU_MMHUB1_START + (x)) + +#define AMDGPU_IS_GFXHUB(x) ((x) >= AMDGPU_GFXHUB_START && (x) < AMDGPU_MMHUB0_START) +#define AMDGPU_IS_MMHUB0(x) ((x) >= AMDGPU_MMHUB0_START && (x) < AMDGPU_MMHUB1_START) +#define AMDGPU_IS_MMHUB1(x) ((x) >= AMDGPU_MMHUB1_START && (x) < AMDGPU_MAX_VMHUBS) /* Reserve 2MB at top/bottom of address space for kernel use */ #define AMDGPU_VA_RESERVED_SIZE (2ULL << 20) |