Am 21.05.21 um 10:31 schrieb xinhui pan:

Swapping a ttm object which has no backend pages makes no sense.

Suggested-by: Christian König christian.koenig@amd.com Signed-off-by: xinhui pan xinhui.pan@amd.com

Reviewed-by: Christian König christian.koenig@amd.com

Going to add a CC: stable and pushing that to drm-misc-fixes in a minute.

---

drivers/gpu/drm/ttm/ttm_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index 510e3e001dab..a1dcf7d55c90 100644 --- a/drivers/gpu/drm/ttm/ttm_device.c +++ b/drivers/gpu/drm/ttm/ttm_device.c @@ -145,7 +145,7 @@ int ttm_device_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx, list_for_each_entry(bo, &man->lru[j], lru) { uint32_t num_pages;

• 		if (!bo->ttm ||
  

• 		if (!bo->ttm || !ttm_tt_is_populated(bo->ttm) ||
  	    bo->ttm->page_flags & TTM_PAGE_FLAG_SG ||
  	    bo->ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)
  		continue;