timeline syncobj gives user more flexibility and convenience to do sychronization. Lionel has written cts and adapted ANV based on this patch set, and also reviewed the patch set. please someone from community helps to submit the patch set to drm-misc-next.
Christian König (3): dma-buf: add new dma_fence_chain container v7 drm/syncobj: add new drm_syncobj_add_point interface v4 drm/syncobj: use the timeline point in drm_syncobj_find_fence v4
Chunming Zhou (6): drm/syncobj: add support for timeline point wait v8 drm/syncobj: add timeline payload query ioctl v6 drm/amdgpu: add timeline support in amdgpu CS v3 drm/syncobj: add transition iotcls between binary and timeline v2 drm/syncobj: add timeline signal ioctl for syncobj v5 drm/amdgpu: update version for timeline syncobj support in amdgpu
drivers/dma-buf/Makefile | 3 +- drivers/dma-buf/dma-fence-chain.c | 241 +++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu.h | 10 +- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 152 ++++++-- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 +- drivers/gpu/drm/drm_internal.h | 8 + drivers/gpu/drm/drm_ioctl.c | 8 + drivers/gpu/drm/drm_syncobj.c | 446 ++++++++++++++++++++++-- include/drm/drm_syncobj.h | 5 + include/linux/dma-fence-chain.h | 81 +++++ include/uapi/drm/amdgpu_drm.h | 8 + include/uapi/drm/drm.h | 36 ++ 12 files changed, 944 insertions(+), 57 deletions(-) create mode 100644 drivers/dma-buf/dma-fence-chain.c create mode 100644 include/linux/dma-fence-chain.h