Chris Wilson
8ec21a7c4b
drm/i915/selftests: Use a sacrificial context for hang testing
...
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 <chris@chris-wilson.co.uk >
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com >
Cc: Michel Thierry <michel.thierry@intel.com >
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com >
Link: https://patchwork.freedesktop.org/patch/msgid/20180205152431.12163-2-chris@chris-wilson.co.uk
2018-02-05 15:27:24 +00:00
Chris Wilson
79f0f4724d
drm/i915/selftests: Exercise independence of per-engine resets
...
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 <chris@chris-wilson.co.uk >
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com >
Cc: Michel Thierry <michel.thierry@intel.com >
Reviewed-by: Michel Thierry <michel.thierry@intel.com >
Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-16-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch >
2017-07-27 09:38:48 +02:00
Chris Wilson
5f09a9c8ab
drm/i915: Allow contexts to be unreferenced locklessly
...
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 <chris@chris-wilson.co.uk >
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com >
Link: http://patchwork.freedesktop.org/patch/msgid/20170620110547.15947-2-chris@chris-wilson.co.uk
2017-06-20 17:13:47 +01:00
Chris Wilson
0daf0113cf
drm/i915: Mock infrastructure for request emission
...
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 <chris@chris-wilson.co.uk >
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com >
Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-8-chris@chris-wilson.co.uk
2017-02-13 20:45:31 +00:00
