kernel/drivers/gpu/drm/i915/selftests/mock_context.h, branch linux-4.17.y

drm/i915/selftests: Use a sacrificial context for hang testing

2018-02-05T15:27:24Z

Avoid injecting hangs in to the i915->kernel_context in case the GPU reset leaves corruption in the context image in its wake (leading to continual failures and system hangs after the selftests are ostensibly complete). Use a sacrificial kernel_context instead. v2: Closing a context is tricky; export a function (for selftests) from i915_gem_context.c to get it right. Signed-off-by: Chris Wilson Cc: Mika Kuoppala Cc: Michel Thierry Reviewed-by: Mika Kuoppala Link: https://patchwork.freedesktop.org/patch/msgid/20180205152431.12163-2-chris@chris-wilson.co.uk

drm/i915/selftests: Exercise independence of per-engine resets

2017-07-27T07:38:48Z

If all goes well, resetting one engine should not affect the operation of any others. So to test this, we setup a continuous stream of requests onto to each of the "innocent" engines whilst constantly resetting our target engine. Signed-off-by: Chris Wilson Cc: Mika Kuoppala Cc: Michel Thierry Reviewed-by: Michel Thierry Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-16-chris@chris-wilson.co.uk Signed-off-by: Daniel Vetter

drm/i915: Allow contexts to be unreferenced locklessly

2017-06-20T16:13:47Z

If we move the actual cleanup of the context to a worker, we can allow the final free to be called from any context and avoid undue latency in the caller. v2: Negotiate handling the delayed contexts free by flushing the workqueue before calling i915_gem_context_fini() and performing the final free of the kernel context directly v3: Flush deferred frees before new context allocations Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/20170620110547.15947-2-chris@chris-wilson.co.uk

drm/i915: Mock infrastructure for request emission

2017-02-13T20:45:31Z

Create a fake engine that runs requests using a timer to simulate hw. v2: Prevent leaks of ctx->name along error paths Signed-off-by: Chris Wilson Reviewed-by: Tvrtko Ursulin Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-8-chris@chris-wilson.co.uk