drm/i915/selftests: Add a simple exerciser for suspend/hibernate

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Although we cannot do a full system-level test of suspend/hibernate from
deep with the kernel selftests, we can exercise the GEM subsystem in
isolation and simulate the external effects (such as losing stolen
contents and trashing the register state).

v2: Don't forget to hold rpm
v3: Suspend the GTT mappings, and more rpm!

References: https://bugs.freedesktop.org/show_bug.cgi?id=96526
References: 5ab57c7020 ("drm/i915: Flush logical context image out to memory upon suspend")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jakub Bartmiński <jakub.bartminski@intel.com>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Jakub Bartmiński <jakub.bartminski@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180830134806.21939-1-chris@chris-wilson.co.uk

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Chris Wilson 2018-08-30 14:48:06 +01:00

parent 4a47765103

commit 3f51b7e1f3

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1

drivers/gpu/drm/i915/i915_gem.c

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221

drivers/gpu/drm/i915/selftests/i915_gem.c

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1

drivers/gpu/drm/i915/selftests/i915_live_selftests.h

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