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It takes a sw_sync_timeline and returns a fence (it is a factory), so
call it sw_sync_timeline_create_fence() for better self-documentation.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Improvements to self-documentating API that matches the rest of sw_sync.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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igt likes to return kernel-esque negative errno where we can, and
indicate that we expect to operate on a sync_fence, otherwise it is
merely a grandiose poll().
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Add subtest test_sync_busy_fork which increments the timeline in a forked child
process, where the timeline fd has been sent through a UNIX socket.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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Add subtest test_sync_busy_fork which increments the timeline in a forked child
process.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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Add subtest test_sync_merge_invalid that tests merging invalid fences.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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Make sure that this test is skipped if the sw_sync feature is missing from
the host system.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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Add subtest test_timeline_closed_signaled that verifies that a signaled fence
stays signaled after its timeline has been closed.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtest verifies that the fences of a timeline are not signalled when
a timelne is closed.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This test creates an already expired fence, then creates a merged fence
out of that expired one (passed twice to the merge operation), and
finally closes the merged fence. It shows that if the refcounts are
wrong on the original expired fence, it might get freed while still in
use. Usually a kernel panick will follow.
Signed-off-by: Rafael Antognolli <rafael.antognolli@intel.com>
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtest runs a single consumer thread and multiple producer thread that
are synchronized using multiple timelines.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtest verifies that waiting, timing out on a wait and that counting
fences in various states works.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtest verifies that creating many timelines and merging random fences
from each timeline with eachother results in merged fences that are fully
functional.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This test verifies that stressing the kernel by creating multiple
consumer/producer threads that wait on a single timeline to be incremented
by another conumer/producer thread does not fail.
And that the order amongst the threads is maintained.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtest verifies the access ordering of multiple consumer threads.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtest verifies merging a fence with itself does not fail.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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Add subtest test_sync_merge that tests merging fences and the validity of the
resulting merged fence.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtest verifies that waiting on fences works properly.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtest verifies that merging two fences works in the simples possible
case.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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This subtests tests that creating fences on negative timelines fail.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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Add subtest alloc_fence that verifies that it's possible to allocate a fence
on a timeline.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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Add initial tests for sw_sync.
Signed-off-by: Robert Foss <robert.foss@collabora.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Reviewed-by: Eric Engestrom <eric@engestrom.ch>
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
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