linux/drivers/gpu
Emily Deng 6ddd9769db drm/amdgpu: Need to set moved to true when evict bo
Fix the VMC page fault when the running sequence is as below:
1.amdgpu_gem_create_ioctl
2.ttm_bo_swapout->amdgpu_vm_bo_invalidate, as not called
amdgpu_vm_bo_base_init, so won't called
list_add_tail(&base->bo_list, &bo->va). Even the bo was evicted,
it won't set the bo_base->moved.
3.drm_gem_open_ioctl->amdgpu_vm_bo_base_init, here only called
list_move_tail(&base->vm_status, &vm->evicted), but not set the
bo_base->moved.
4.amdgpu_vm_bo_map->amdgpu_vm_bo_insert_map, as the bo_base->moved is
not set true, the function amdgpu_vm_bo_insert_map will call
list_move(&bo_va->base.vm_status, &vm->moved)
5.amdgpu_cs_ioctl won't validate the swapout bo, as it is only in the
moved list, not in the evict list. So VMC page fault occurs.

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-08-28 12:42:48 -05:00
..
drm drm/amdgpu: Need to set moved to true when evict bo 2018-08-28 12:42:48 -05:00
host1x gpu: host1x: Check whether size of unpin isn't 0 2018-07-09 10:31:30 +02:00
ipu-v3 drm/imx: ipu-v3 plane offset and IPU id fixes 2018-08-10 11:37:35 +10:00
vga docs: Fix some broken references 2018-06-15 18:10:01 -03:00
Makefile