Hey, Op 28-09-12 14:41, Maarten Lankhorst schreef: > Documentation says that code requiring dma-buf should add it to > select, so inline fallbacks are not going to be used. A link error > will make it obvious what went wrong, instead of silently doing > nothing at runtime. > The whole patch series is in my tree, I use stg so things might move around, do not use for merging currently: http://cgit.freedesktop.org/~mlankhorst/linux/log/?h=v10-wip It contains everything in here plus the patches for ttm to make it work, I use a old snapshot of drm-next + merge of nouveau as base. Description of what the parts do: Series to fix small api issues when moving over: drm/ttm: Remove cpu_writers related code drm/ttm: Add ttm_bo_is_reserved function drm/radeon: Use ttm_bo_is_reserved drm/vmwgfx: use ttm_bo_is_reserved drm/vmwgfx: remove use of fence_obj_args drm/ttm: remove sync_obj_arg drm/ttm: remove sync_obj_arg from ttm_bo_move_accel_cleanup drm/ttm: remove sync_arg entirely drm/nouveau: unpin buffers before releasing to prevent lockdep warnings drm/nouveau: add reservation to nouveau_bo_vma_del drm/nouveau: add reservation to nouveau_gem_ioctl_cpu_prep Hey great, now we only have one user left for fence waiting before reserving, lets fix that and remove fence lock: ttm_bo_cleanup_refs_or_queue and ttm_bo_cleanup_refs have to reserve before waiting, lets do it in the squash commit so we don't have to throw lock order around everywhere: drm/ttm: remove fence_lock -- Up to this point should be mergeable now Then we start working on lru_lock removal slightly, this means the lru list no longer is empty but can contain only reserved buffers: drm/ttm: do not check if list is empty in ttm_bo_force_list_clean drm/ttm: move reservations for ttm_bo_cleanup_refs -- Still mergeable up to this point, just fixes Patch series from this email: dma-buf: remove fallback for !CONFIG_DMA_SHARED_BUFFER fence: dma-buf cross-device synchronization (v9) seqno-fence: Hardware dma-buf implementation of fencing (v3) reservation: cross-device reservation support reservation: Add lockdep annotation and selftests Now hook it up to drm/ttm in a few steps: usage around reservations: drm/ttm: make ttm reservation calls behave like reservation calls drm/ttm: use dma_reservation api dma-buf: use reservations drm/ttm: allow drivers to pass custom dma_reservation_objects for a bo then kill off the lru lock around reservation: drm/ttm: remove lru_lock around ttm_bo_reserve drm/ttm: simplify ttm_eu_* The lru_lock removal patch removes the lock around lru_lock around the reservation, this will break the assumption that items on the lru list and swap list can always be reserved, and this gets patched up too. Is there any part in ttm you disagree with? I believe that this is all mergeable, the lru_lock removal patch could be moved to before the reservation parts, this might make merging easier, but I don't think there is any ttm part of the series that are wrong on a conceptual level. ~Maarten _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
