linux/drivers/dma-buf
Daniel Vetter 929ae7c2e3 Merge tag 'dma-fence-deadline' of https://gitlab.freedesktop.org/drm/msm into drm-next
This series adds a deadline hint to fences, so realtime deadlines
such as vblank can be communicated to the fence signaller for power/
frequency management decisions.

This is partially inspired by a trick i915 does, but implemented
via dma-fence for a couple of reasons:

1) To continue to be able to use the atomic helpers
2) To support cases where display and gpu are different drivers

See https://patchwork.freedesktop.org/series/93035/

This does not yet add any UAPI, although this will be needed in
a number of cases:

1) Workloads "ping-ponging" between CPU and GPU, where we don't
   want the GPU freq governor to interpret time stalled waiting
   for GPU as "idle" time
2) Cases where the compositor is waiting for fences to be signaled
   before issuing the atomic ioctl, for example to maintain 60fps
   cursor updates even when the GPU is not able to maintain that
   framerate.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGt5nDQpa6J86V1oFKPA30YcJzPhAVpmF7N1K1g2N3c=Zg@mail.gmail.com
2023-03-29 15:45:38 +02:00
..
heaps dma-buf/heaps: Assert held reservation lock for dma-buf mmapping 2022-11-11 23:49:51 +03:00
dma-buf-sysfs-stats.c dma-buf: make kobj_type structure constant 2023-02-17 10:59:14 +01:00
dma-buf-sysfs-stats.h dma-buf: fix dma_buf_export init order v2 2022-12-13 08:31:45 +01:00
dma-buf.c dma-buf: Include missing parentheses to documentation 2023-03-03 14:35:09 -03:00
dma-fence-array.c dma-buf/fence-array: Add fence deadline support 2023-03-25 10:55:07 -07:00
dma-fence-chain.c dma-buf/fence-chain: Add fence deadline support 2023-03-28 13:38:52 -07:00
dma-fence-unwrap.c dma-buf: revert "return only unsignaled fences in dma_fence_unwrap_for_each v3" 2022-07-14 14:41:30 +02:00
dma-fence.c dma-buf/dma-fence: Add deadline awareness 2023-03-25 10:55:07 -07:00
dma-heap.c Driver Core changes for 6.2-rc1 2022-12-16 03:54:54 -08:00
dma-resv.c dma-buf/dma-resv: Add a way to set fence deadline 2023-03-28 13:39:02 -07:00
Kconfig dma-buf: deprecate DMABUF_SYSFS_STATS 2022-06-23 10:51:43 +02:00
Makefile dma-buf: cleanup dma_fence_unwrap implementation 2022-05-30 14:16:32 +02:00
selftest.c
selftest.h
selftests.h dma-buf: add dma_fence_unwrap v2 2022-03-25 14:18:28 +01:00
st-dma-fence-chain.c treewide: use get_random_u32_inclusive() when possible 2022-11-18 02:18:02 +01:00
st-dma-fence-unwrap.c dma-buf: Enable signaling on fence for selftests 2022-09-16 15:53:25 +02:00
st-dma-fence.c dma-buf: Enable signaling on fence for selftests 2022-09-16 15:53:25 +02:00
st-dma-resv.c dma-buf: Enable signaling on fence for selftests 2022-09-16 15:53:25 +02:00
sw_sync.c
sync_debug.c
sync_debug.h
sync_file.c dma-buf/sync_file: use strscpy to replace strlcpy 2022-08-10 13:50:49 +02:00
sync_trace.h
udmabuf.c udmabuf: add vmap and vunmap methods to udmabuf_ops 2022-11-18 10:57:26 +01:00