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In 4d9396e67930 we have started storing the opts with which the spin was
created as part of igt_spin_t. The ahnd stored as part of igt_spin_t is
therefore redundant. We can get ahnd from opts.ahnd.
Cc: Zbigniew Kempczynski <zbigniew.kempczynski@intel.com>
Cc: Jasmine Newsome <jasmine.newsome@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
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Save the opts with which the spin was created
as part of the spin so that the opts are available
in case they are needed.
Signed-off-by: Jasmine Newsome <jasmine.newsome@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
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For gens without relocations we need to use softpin with valid offsets
which do not overlap other execbuf objects. As spinner during creation
knows nothing about vm it has to run into allocator handle must be
passed to properly acquire offsets from allocator instance.
Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Ashutosh Dixit <ashutosh.dixit@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
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v2 (Zbigniew Kempczyński):
- Drop a spurrious newline
- Use igt_assert() instead of assert()
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
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Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
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Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
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On early gens, the batch buffer must not be snooped and so we need to
clflush the write into the userptr memory to terminate the loop.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
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Measure the sample gt-awake time while each engine and every engine is
busy. They should all report the same duration, the elapsed runtime of
the batch.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
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Submit a chain of spinners across all the engines, using the submit
fence to launch them in parallel.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
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Use the spinners to provide exactly the right amount of background
busyness.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
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Add support for dummyload to be userptr, the variation in object type
may be useful in some tests and to ensure complete coverage of some dark
corners.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
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Check that our threaded timer to expire the igt_spin_t does fire!
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
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Since timer_delete doesn't give us any guarantees that the thread and
its notify_function isn't currently running, we can hit a use-after-free
in a race condition scenario.
This causes a seemingly random segfault when igt_spin_end from notify
thread is called after igt_spin_free was already called from the main
thread.
Let's fix that by using timerfd and managing the timer thread ourselves.
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Some spinners are used with the intent of never ending and being
declared hung by the kernel. In some cases, these are being used to
simulate invalid payloads and so we can use an invalid command to
trigger a GPU hang. (Other cases, they are simulating infinite workloads
that truly never end, but we still need to be able to curtail to provide
multi-tasking). This patch adds IGT_SPIN_INVALID_CS to request the
injection of 0xdeadbeef into the command stream that should trigger a
GPU hang.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
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Our list was something between Wayland and Linux Kernel list
implementations, right in the uncanny valley.
On top of that it falsely claimed that it's a straight copy from the
Wayland project.
Let's make our impl more akin to the kernel one to ease the cognitive
dissonance for the developers working on all those projects.
This patch:
* mimics the current kernel list interface
* separates IGT helpers in the source files
* adds brief explanation and code example for igt-doc
* introduces igt_list.c as static inlines are not visible in the docs
v2: mimic the kernel instead of wayland (Chris)
- _head suffix for the sentinel/link struct
- _entry_ in iterator names that go over the elements
v3: I forgot to merge this in time and there was another call site
that had to be converted in gem_spin_batch.c
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>
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Use an explicit fence to circumvent the [i915] GPU hang detection rather
than tweak the i915 specific modparam (and remove the assertion that
such a param exists). Note, that with a bit more work, the fence could
be used be directly rather than via dirtying the fb with a dummyload.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Andi Shyti <andi.shyti@intel.com>
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The only detail of note here was that we were creating a fence from the
recursive batch, now supported by igt_spin_t (thanks Tvrtko).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
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Instead of relying a static obj array inside igt_spin_t,
access it with proper indexing.
v2: IGT_SPIN_BATCH
v3: indent
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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Use spin->condition to mark the spot we have
saved for manipulating the looping condition.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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Libify resetting a spin for reuse.
v2: use also in perf_pmu
v3: s/cmd_spin/cmd_precondition
v4: remove early return for !spin (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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There is no guarantee that spinners are and will be implemented
using batches. As we have igt_spin_t, manipulate it through
igt_spin_* functions consistently and hide the batch nature.
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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Instead of opencoding the poll into the spinner, use
a helper to check if spinner has started.
v2: use zero as presumed offset (Chris)
v3: cleanup the relocs (Chris)
v4: leave the domains to zero, avoid relocation (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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An hanging batch is nothing more than a spinning batch that never gets
stopped, so re-use the routines implemented in dummyload.c.
v2: Let caller decide spin loop size
v3: Only use loose loops for hangs (Chris)
v4: No requires
v5: Free the spinner
v6: Chamelium exists.
Signed-off-by: Antonio Argenziano <antonio.argenziano@intel.com> #v3
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Antonio Argenziano <antonio.argenziano@intel.com>
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Sometimes, we do not want to allow control to escape from the spinner,
e.g. for when we want to hang the GPU inside the batch.
(Split out from the preempt-timeout test case.)
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Antonio Argenziano <antonio.argenziano@intel.com>
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When using the pollable spinner, we often want to use it as a means of
ensuring the task is running on the GPU before switching to something
else. In which case we don't want to add extra delay inside the spinner,
but the current 1000 NOPs add on order of 5us, which is often larger
than the target latency.
v2: Don't change perf_pmu as that is sensitive to the extra CPU latency
from a tight GPU spinner.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Antonio Argenziano <antonio.argenziano@intel.com> #v1
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> #v1
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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In order to make adding more options easier, expose the full set of
options to the caller.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Petri Latvala <petri.latvala@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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It doesn't look like there should be a dependency there.
v2: s/intel_batchbuffer/intel_reg/
v3: One more s/intel_batchbuffer/intel_reg/ in benchmarks
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Katarzyna Dec <katarzyna.dec@intel.com>
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Pollable spin batch exports a spin->running pointer which can be checked
by dereferencing it to see if the spinner is actually executing on the
GPU.
This is useful for tests which want to make sure they do not proceed with
their next step whilst the spinner is potentially only being processed by
the driver and not actually executing.
Pollable spinner can be created with igt_spin_batch_new_poll or
__igt_spin_batch_new_poll, after which igt_spin_busywait_until_running can
be used to busy wait until it is executing.
v2:
* Move READ_ONCE to igt_core.
* Add igt_spin_busywait_until_running. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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The "cork" bo (imported bo with attached fence) and fence is used in several
tests to stall execution. Moving it to a common place makes the codebase
cleaner.
Note that the actual test updates is done in follow up patches as it is
simpler to do in one go after one more common function is added in the
next patch.
v2: don't use new/free naming, don't use dynamic alloc (Chris)
v3: add sw_sync common functions. (Chris)
v4: squash sw_sync and vgem cork structs into one. (Chris)
v5: use anonymous enum in cork struct. (Chris)
v6: reset cork after unplugging. (Chris)
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Antonio Argenziano <antonio.argenziano@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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Support creating spin batches which return an output fence using new
__igt_spin_batch_new_fence / igt_spin_batch_new_fence API.
This will be used fromthe perf_pmu@interrupts test to ensure user
interrupt generation from a batch with controlled duration.
v2: Support out fence with multiple engines as well. (Chris Wilson)
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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We queue N low priority hanging batches across the engines
and check that our high priority write over takes them.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101079
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Currently, the main thread needs to wakeup to run the signal handler
that ends a spin batch. When testing whether a function call succesfully
waits for a batch to complete, this behavior is undesired. It actually
invalidates the test.
Fix this by spawning a new thread to handle the timeout.
v2: Get rid of mutexes. (Chris)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
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A lot of igt testcases need some GPU workload to make sure a race
window is big enough. Unfortunately having a fixed amount of
workload leads to spurious test failures or overly long runtimes
on some fast/slow platforms. This library contains functionality
to submit GPU workloads that should consume exactly a specific
amount of time.
Since v14: Since we are using multiple signals, walk list of batches
to terminate a batch to avoid using a single global batch. Cycle signals
between SIGRTMIN and SIGRTMAX properly.
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: tomeu@tomeuvizoso.net
Reviewed-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
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