diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index c11903257b94..6af2d3c56f38 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -1104,6 +1104,32 @@ error_free: } /* + * amdgpu_vm_invalidate_level - mark all PD levels as invalid + * + * @parent: parent PD + * + * Mark all PD level as invalid after an error. + */ +static void amdgpu_vm_invalidate_level(struct amdgpu_vm_pt *parent) +{ + unsigned pt_idx; + + /* + * Recurse into the subdirectories. This recursion is harmless because + * we only have a maximum of 5 layers. + */ + for (pt_idx = 0; pt_idx <= parent->last_entry_used; ++pt_idx) { + struct amdgpu_vm_pt *entry = &parent->entries[pt_idx]; + + if (!entry->bo) + continue; + + entry->addr = ~0ULL; + amdgpu_vm_invalidate_level(entry); + } +} + +/* * amdgpu_vm_update_directories - make sure that all directories are valid * * @adev: amdgpu_device pointer @@ -1115,7 +1141,13 @@ error_free: int amdgpu_vm_update_directories(struct amdgpu_device *adev, struct amdgpu_vm *vm) { - return amdgpu_vm_update_level(adev, vm, &vm->root, 0); + int r; + + r = amdgpu_vm_update_level(adev, vm, &vm->root, 0); + if (r) + amdgpu_vm_invalidate_level(&vm->root); + + return r; } /** |