v2 drops the submit flags, directly moves in fence handling to the job submit function and queries for the syncobj cap instead of using a separate support parameter.
This series adds support for the native fence fd extension to vc4. The implementation relies on a newly introduced kernel interface that allows submitting syncobjs for in/out fences during job submission. Since syncobjs are relatively new, patches 1 and 3 have build changes for automake and meson to require a recent libdrm version. There is some scope here to replace the previous sequence number based implementation with only syncobjs, but given that we need to continue supporting older kernels I felt it would have only added complexity. This has been tested with piglit and kmscube -A(tomic). In particular, I checked that the fd numbers weren't increasing during the kmscube run. Should not be merged until the kernel side lands. In particular, patch 2 is purely provisional. Stefan Schake (6): broadcom/vc4: Drop libdrm_vc4 requirement drm-uapi: Update vc4 header with syncobj submit support broadcom/vc4: Bump libdrm requirement broadcom/vc4: Detect syncobj support broadcom/vc4: Store job fence in syncobj broadcom/vc4: Native fence fd support configure.ac | 3 +- include/drm-uapi/vc4_drm.h | 13 +++++-- meson.build | 2 + src/gallium/drivers/vc4/vc4_context.c | 29 +++++++++++++-- src/gallium/drivers/vc4/vc4_context.h | 10 ++++- src/gallium/drivers/vc4/vc4_fence.c | 70 +++++++++++++++++++++++++++++++++-- src/gallium/drivers/vc4/vc4_job.c | 34 ++++++++++++++++- src/gallium/drivers/vc4/vc4_screen.c | 12 +++++- src/gallium/drivers/vc4/vc4_screen.h | 5 ++- 9 files changed, 160 insertions(+), 18 deletions(-) -- 2.7.4 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
