Hi all, Following Jason's suggestion on another thread adding timeline documentation [1], here is a small series adding a creation flag to syncobjs so that users are prevented to drop the existing timeline fences in the syncobj, effectivelly ensuring a user always adds to the dma_fence_chain instead of replacing it. We still allow explicit reset. Apart from the fact we need to enforce this policy in each driver's submission path, I haven't run into odds things yet. Cheers, [1] : https://lists.freedesktop.org/archives/dri-devel/2019-August/232700.html Lionel Landwerlin (3): drm/syncobj: protect timeline syncobjs drm/amd/amdgpu: disallow replacing fences in timeline syncobjs drm/i915: disallow replacing fences of timeline syncobjs drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++ drivers/gpu/drm/drm_syncobj.c | 30 ++++++++++++++++++- .../gpu/drm/i915/gem/i915_gem_execbuffer.c | 8 +++++ include/drm/drm_syncobj.h | 8 +++++ include/uapi/drm/drm.h | 1 + 5 files changed, 48 insertions(+), 1 deletion(-) -- 2.23.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
