This series contains the drm and i915 bits required to implement the
VK_KHR_external_semaphore and VK_KHR_external_fence extensions on top of
DRM sync objects.
Patches 1-3 are cleanups and fixes for the core syncobj APIs.
Patch 4 is the i915 patch that adds support for syncobj in the i915 driver.
I'm re-sending it because I've rebased the latest version on patches 1-3.
Patch 6 is technically not required by the end of the series but is needed
for i915 if we don't have patches 7-9. I think it's a good and possibly
useful clean-up, but I'm more than willing to drop it in favor of 7-9.
Patch 7 adds a reset ioctl which allows the caller to reset the syncobj by
setting the fence to NULL. This is needed to implement vkResetFences.
The real meat of the series is patches 8 and 9. The previous wait
implementation would throw -EINVAL if you ever tried to wait on a syncobj
which did not yet have a dma_fence. Patch 9 adds a new flag to the syncobj
which makes it so that, if it does not yet have a fence, it first waits for
a fence to show up and then waits on the fence. This is needed to properly
implement VkWaitForFences behavior.
This series can be found as a branch here:
Patches to the Intel Vulkan driver to implement VK_KHR_external_fence on
top of this kernel interface can be found here:
Cc: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Dave Airlie <airl...@redhat.com>
Dave Airlie (1):
drm/syncobj: add sync obj wait interface. (v8)
Jason Ekstrand (8):
drm/syncobj: Rename fence_get to find_fence
drm/syncobj: Lock around drm_syncobj::fence
drm/syncobj: Remove file_private from replace_fence
i915: Add support for drm syncobjs
dma-buf/dma-fence: Allow wait_any_timeout without default_wait
drm/syncobj: Add a reset ioctl
drm/syncobj: Add a callback mechanism for replace_fence
drm/syncobj: Allow wait for submit and signal behavior
drivers/dma-buf/dma-fence.c | 5 -
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 5 +-
drivers/gpu/drm/drm_internal.h | 4 +
drivers/gpu/drm/drm_ioctl.c | 4 +
drivers/gpu/drm/drm_syncobj.c | 522 ++++++++++++++++++++++++++++-
drivers/gpu/drm/i915/i915_drv.c | 3 +-
drivers/gpu/drm/i915/i915_gem_execbuffer.c | 146 +++++++-
include/drm/drm_syncobj.h | 46 ++-
include/uapi/drm/drm.h | 19 ++
include/uapi/drm/i915_drm.h | 30 +-
10 files changed, 752 insertions(+), 32 deletions(-)
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