The buffer object must be reserved before calling ttm_bo_validate for pinning/unpinning. Signed-off-by: Gerd Hoffmann <kraxel@xxxxxxxxxx> --- drivers/gpu/drm/bochs/bochs_mm.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/bochs/bochs_mm.c b/drivers/gpu/drm/bochs/bochs_mm.c index cfe061c25f..970a591908 100644 --- a/drivers/gpu/drm/bochs/bochs_mm.c +++ b/drivers/gpu/drm/bochs/bochs_mm.c @@ -223,7 +223,11 @@ int bochs_bo_pin(struct bochs_bo *bo, u32 pl_flag) bochs_ttm_placement(bo, pl_flag); for (i = 0; i < bo->placement.num_placement; i++) bo->placements[i].flags |= TTM_PL_FLAG_NO_EVICT; + ret = ttm_bo_reserve(&bo->bo, true, false, NULL); + if (ret) + return ret; ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx); + ttm_bo_unreserve(&bo->bo); if (ret) return ret; @@ -247,7 +251,11 @@ int bochs_bo_unpin(struct bochs_bo *bo) for (i = 0; i < bo->placement.num_placement; i++) bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT; + ret = ttm_bo_reserve(&bo->bo, true, false, NULL); + if (ret) + return ret; ret = ttm_bo_validate(&bo->bo, &bo->placement, &ctx); + ttm_bo_unreserve(&bo->bo); if (ret) return ret; -- 2.9.3 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
