drm/i915: Create a fake object for testing huge allocations

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We would like to be able to exercise huge allocations even on memory
constrained devices. To do this we create an object that allocates only
a few pages and remaps them across its whole range - each page is reused
multiple times. We can therefore pretend we are rendering into a much
larger object.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170213171558.20942-9-chris@chris-wilson.co.uk

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This commit is contained in:

Chris Wilson 2017-02-13 17:15:20 +00:00

parent 0daf0113cf

commit 44653988ef

4 changed files with 193 additions and 8 deletions

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1

drivers/gpu/drm/i915/i915_gem.c

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18

drivers/gpu/drm/i915/i915_gem_object.h

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135

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

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45

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

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