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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2016-07-20 10:21:11 +0200 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2016-07-20 10:29:53 +0200 |
| commit | 04769652c8c7ad4779a4b943dcf889a2020226f4 (patch) | |
| tree | aeb6abe430789f85abf9aae0355e5a76b1af5a5c /drivers/gpu/drm/i915/intel_breadcrumbs.c | |
| parent | drm/i915: Mark all current requests as complete before resetting them (diff) | |
| download | linux-04769652c8c7ad4779a4b943dcf889a2020226f4.tar.xz linux-04769652c8c7ad4779a4b943dcf889a2020226f4.zip | |
drm/i915: Derive GEM requests from dma-fence
dma-buf provides a generic fence class for interoperation between
drivers. Internally we use the request structure as a fence, and so with
only a little bit of interfacing we can rebase those requests on top of
dma-buf fences. This will allow us, in the future, to pass those fences
back to userspace or between drivers.
v2: The fence_context needs to be globally unique, not just unique to
this device.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1469002875-2335-4-git-send-email-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/intel_breadcrumbs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_breadcrumbs.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c index b074f3d6d127..32ada41dedfb 100644 --- a/drivers/gpu/drm/i915/intel_breadcrumbs.c +++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c @@ -436,6 +436,7 @@ static int intel_breadcrumbs_signaler(void *arg) */ intel_engine_remove_wait(engine, &request->signaling.wait); + fence_signal(&request->fence); /* Find the next oldest signal. Note that as we have * not been holding the lock, another client may @@ -482,7 +483,7 @@ void intel_engine_enable_signaling(struct drm_i915_gem_request *request) } request->signaling.wait.tsk = b->signaler; - request->signaling.wait.seqno = request->seqno; + request->signaling.wait.seqno = request->fence.seqno; i915_gem_request_reference(request); /* First add ourselves into the list of waiters, but register our @@ -504,8 +505,8 @@ void intel_engine_enable_signaling(struct drm_i915_gem_request *request) p = &b->signals.rb_node; while (*p) { parent = *p; - if (i915_seqno_passed(request->seqno, - to_signaler(parent)->seqno)) { + if (i915_seqno_passed(request->fence.seqno, + to_signaler(parent)->fence.seqno)) { p = &parent->rb_right; first = false; } else { |