c604d31950
The ttm BO now initially has NULL bo->resource, and leaves the driver
the handle that. However it looks like we forgot to handle that for
ttm_bo_move_memcpy() users, like with vram-gem, since it just silently
returns zero. This seems to then trigger warnings like:
WARNING: CPU: 0 PID: 1 at drivers/gpu/drm/drm_gem_vram_helper.c:255 drm_gem_vram_offset (??:?)
Fix this by calling move_null() if the new resource is TTM_PL_SYSTEM,
otherwise do the multi-hop sequence to ensure can safely call into
ttm_bo_move_memcpy(), since it might also need to clear the memory.
This should give the same behaviour as before.
While we are here let's also treat calling ttm_bo_move_memcpy() with
NULL bo->resource as programmer error, where expectation is that upper
layers should now handle it.
Fixes:
|
||
|---|---|---|
| .. | ||
| Makefile | ||
| ttm_agp_backend.c | ||
| ttm_bo.c | ||
| ttm_bo_util.c | ||
| ttm_bo_vm.c | ||
| ttm_device.c | ||
| ttm_execbuf_util.c | ||
| ttm_module.c | ||
| ttm_module.h | ||
| ttm_pool.c | ||
| ttm_range_manager.c | ||
| ttm_resource.c | ||
| ttm_sys_manager.c | ||
| ttm_tt.c | ||