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38b7fb0b2a
linux/drivers/gpu/drm/i915/selftests
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Chris Wilson 38b7fb0b2a drm/i915/selftests: Release the struct_mutex to free the objects 
live_gtt is a very slow test to run, simply because it tries to allocate
and use as much as the 48b address space as possibly can and in the
process will try to own all of the system memory. This leads to resource
exhaustion and CPU starvation; the latter impacts us when the NMI
watchdog declares a task hung due to a mutex contention with ourselves.
This we can prevent by releasing the struct_mutex and forcing our
i915/rcu workers to run, and in particular flushing the freed object
worker that is the cause for concern.

References: https://bugs.freedesktop.org/show_bug.cgi?id=107094
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180703101829.7360-1-chris@chris-wilson.co.uk
2018-07-03 22:02:36 +01:00
..
huge_gem_object.c drm: move read_domains and write_domain into i915 2018-02-16 14:12:48 +00:00
huge_gem_object.h
huge_pages.c drm/i915: Replace drm_dev_unref with drm_dev_put 2018-06-28 19:09:46 +02:00
i915_gem_coherency.c drm/i915: Make closing request flush mandatory 2018-06-14 08:16:12 +01:00
i915_gem_context.c drm/i915/selftests: Mark up write into scratch vma 2018-06-29 20:52:46 +01:00
i915_gem_dmabuf.c drm/i915: Replace drm_dev_unref with drm_dev_put 2018-06-28 19:09:46 +02:00
i915_gem_evict.c drm/i915: Replace drm_dev_unref with drm_dev_put 2018-06-28 19:09:46 +02:00
i915_gem_gtt.c drm/i915/selftests: Release the struct_mutex to free the objects 2018-07-03 22:02:36 +01:00
i915_gem_object.c drm/i915/selftests: Attach the fence to the object when making busy 2018-06-29 21:07:39 +01:00
i915_live_selftests.h drm/i915: Check whitelist registers across resets 2018-04-14 18:36:45 +01:00
i915_mock_selftests.h drm/i915: Look for an active kernel context before switching 2018-05-24 15:51:45 +01:00
i915_random.c drm/i915/selftests: Allow random array allocation to fail 2018-01-02 15:30:40 +00:00
i915_random.h
i915_request.c drm/i915: Replace drm_dev_unref with drm_dev_put 2018-06-28 19:09:46 +02:00
i915_selftest.c
i915_sw_fence.c drm/i915/selftests: Wait for the dma-fence timeout 2018-01-17 17:09:59 +00:00
i915_syncmap.c drm/i915/selftests: Always initialise err 2017-11-14 23:50:49 +00:00
i915_timeline.c drm/i915: Split i915_gem_timeline into individual timelines 2018-05-02 23:57:18 +01:00
i915_vma.c drm/i915: Replace drm_dev_unref with drm_dev_put 2018-06-28 19:09:46 +02:00
igt_flush_test.c drm/i915/selftests: Only switch to kernel context when locked 2018-05-09 09:28:45 +01:00
igt_flush_test.h drm/i915/selftests: Refactor common flush_test() 2018-05-08 12:44:31 +01:00
intel_breadcrumbs.c drm/i915: Replace drm_dev_unref with drm_dev_put 2018-06-28 19:09:46 +02:00
intel_engine_cs.c drm/i915: add a selftest for the mmio_bases table 2018-03-15 08:46:06 +00:00
intel_guc.c drm/i915/guc: Allow preempt-client to be NULL 2018-02-08 07:29:59 +00:00
intel_hangcheck.c drm/i915: Make closing request flush mandatory 2018-06-14 08:16:12 +01:00
intel_lrc.c drm/i915: Make closing request flush mandatory 2018-06-14 08:16:12 +01:00
intel_uncore.c drm/i915/icl: Gen11 forcewake support 2018-03-07 15:07:45 +02:00
intel_workarounds.c drm/i915: Make closing request flush mandatory 2018-06-14 08:16:12 +01:00
lib_sw_fence.c drm/i915/selftests: Convert timers to use timer_setup() 2017-11-21 15:46:44 -08:00
lib_sw_fence.h
mock_context.c drm/i915: Store a pointer to intel_context in i915_request 2018-05-18 09:35:22 +01:00
mock_context.h drm/i915/selftests: Use a sacrificial context for hang testing 2018-02-05 15:27:24 +00:00
mock_dmabuf.c
mock_dmabuf.h
mock_drm.c
mock_drm.h
mock_engine.c drm/i915/selftests: Pin the mock kernel context 2018-05-23 17:48:46 +01:00
mock_engine.h
mock_gem_device.c drm/i915/selftests: Pin the mock kernel context 2018-05-23 17:48:46 +01:00
mock_gem_device.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mock_gem_object.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mock_gtt.c drm/i915: Decouple vma vfuncs from vm 2018-06-07 21:53:11 +01:00
mock_gtt.h
mock_request.c drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
mock_request.h drm/i915: Rename drm_i915_gem_request to i915_request 2018-02-21 20:57:22 +00:00
mock_timeline.c drm/i915: Split i915_gem_timeline into individual timelines 2018-05-02 23:57:18 +01:00
mock_timeline.h drm/i915: Split i915_gem_timeline into individual timelines 2018-05-02 23:57:18 +01:00
mock_uncore.c
mock_uncore.h
scatterlist.c