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5861b013e2
linux_dsm_epyc7002/drivers/gpu/drm/i915/selftests
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Chris Wilson 5861b013e2 drm/i915: Do a synchronous switch-to-kernel-context on idling 
When the system idles, we switch to the kernel context as a defensive
measure (no users are harmed if the kernel context is lost). Currently,
we issue a switch to kernel context and then come back later to see if
the kernel context is still current and the system is idle. However,
if we are no longer privy to the runqueue ordering, then we have to
relax our assumptions about the logical state of the GPU and the only
way to ensure that the kernel context is currently loaded is by issuing
a request to run after all others, and wait for it to complete all while
preventing anyone else from issuing their own requests.

v2: Pull wedging into switch_to_kernel_context_sync() but only after
waiting (though only for the same short delay) for the active context to
finish.

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/20190308093657.8640-1-chris@chris-wilson.co.uk
2019-03-08 10:57:05 +00:00
..
huge_gem_object.c drm/i915: Make object/vma allocation caches global 2019-02-28 11:08:02 +00:00
huge_gem_object.h
huge_pages.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
i915_active.c drm/i915: Beware temporary wedging when determining -EIO 2019-02-20 16:31:08 +00:00
i915_gem_coherency.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
i915_gem_context.c drm/i915/selftests: Improve switch-to-kernel-context checking 2019-03-07 23:33:35 +00:00
i915_gem_dmabuf.c
i915_gem_evict.c drm/i915: Beware temporary wedging when determining -EIO 2019-02-20 16:31:08 +00:00
i915_gem_gtt.c drm/i915: Make object/vma allocation caches global 2019-02-28 11:08:02 +00:00
i915_gem_object.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
i915_gem.c drm/i915: Do a synchronous switch-to-kernel-context on idling 2019-03-08 10:57:05 +00:00
i915_live_selftests.h drm/i915: Generalise GPU activity tracking 2019-02-05 17:12:00 +00:00
i915_mock_selftests.h drm/i915: Replace global breadcrumbs with per-context interrupt tracking 2019-01-29 21:45:22 +00:00
i915_random.c drm/i915: Share per-timeline HWSP using a slab suballocator 2019-01-28 19:07:06 +00:00
i915_random.h drm/i915: Share per-timeline HWSP using a slab suballocator 2019-01-28 19:07:06 +00:00
i915_request.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
i915_selftest.c drm/i915/selftests: Upgrade printing test/subtest name to pr_info 2019-03-06 11:36:36 +00:00
i915_sw_fence.c
i915_syncmap.c
i915_timeline.c drm/i915: Keep timeline HWSP allocated until idle across the system 2019-03-01 17:40:33 +00:00
i915_vma.c drm/i915/selftests: Move local mock_ggtt allocations to the heap 2019-02-17 21:07:46 +00:00
igt_flush_test.c drm/i915: Beware temporary wedging when determining -EIO 2019-02-20 16:31:08 +00:00
igt_flush_test.h
igt_live_test.c drm/i915: Drop fake breadcrumb irq 2019-01-29 21:45:30 +00:00
igt_live_test.h drm/i915/selftests: Refactor common live_test framework 2019-01-22 13:01:20 +00:00
igt_reset.c drm/i915/selftests: Add tests for GT and engine workaround verification 2018-12-04 12:23:19 +00:00
igt_reset.h drm/i915/selftests: Add tests for GT and engine workaround verification 2018-12-04 12:23:19 +00:00
igt_spinner.c drm/i915: Don't claim an unstarted request was guilty 2019-02-08 16:47:40 +00:00
igt_spinner.h drm/i915/selftests: Extract spinner code 2018-11-30 15:09:00 +00:00
igt_wedge_me.h
intel_engine_cs.c
intel_guc.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
intel_hangcheck.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
intel_lrc.c drm/i915/selftests: Check preemption support on each engine 2019-03-08 09:34:49 +00:00
intel_uncore.c
intel_workarounds.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
lib_sw_fence.c drm/i915: Replace global breadcrumbs with per-context interrupt tracking 2019-01-29 21:45:22 +00:00
lib_sw_fence.h drm/i915: Replace global breadcrumbs with per-context interrupt tracking 2019-01-29 21:45:22 +00:00
mock_context.c drm/i915: Refactor out intel_context_init() 2019-01-22 13:13:53 +00:00
mock_context.h
mock_dmabuf.c
mock_dmabuf.h
mock_drm.c
mock_drm.h
mock_engine.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
mock_engine.h drm/i915: Replace global breadcrumbs with per-context interrupt tracking 2019-01-29 21:45:22 +00:00
mock_gem_device.c drm/i915: Store the BIT(engine->id) as the engine's mask 2019-03-05 18:19:50 +00:00
mock_gem_device.h
mock_gem_object.h
mock_gtt.c drm/i915/selftests: Create a clean GGTT for vma/gtt selftesting 2019-01-22 12:50:39 +00:00
mock_gtt.h drm/i915/selftests: Create a clean GGTT for vma/gtt selftesting 2019-01-22 12:50:39 +00:00
mock_request.c drm/i915: Make request allocation caches global 2019-02-28 11:07:56 +00:00
mock_request.h drm/i915: Make request allocation caches global 2019-02-28 11:07:56 +00:00
mock_timeline.c drm/i915: Introduce i915_timeline.mutex 2019-03-01 14:54:46 +00:00
mock_timeline.h
mock_uncore.c
mock_uncore.h
scatterlist.c