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drm/i915/selftests: Skip mixed page exhaustion if only small pages available

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If we only have 4k pages, we can't mix together different combinations
of hugepages to see if the world burns. However, as the loops did
nothing, we never set err to 0 and reported ENODEV aborting the test.
Teach the test to skip instead.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.william.auld@gmail.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171107110559.6098-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com>
This commit is contained in:
Chris Wilson 2017-11-07 11:05:59 +00:00
parent 1a1f12872e
commit f6d03042b9
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/selftests/huge_pages.c
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@ -1159,6 +1159,9 @@ static int igt_ppgtt_exhaust_huge(void *arg)
int n, i;
int err = -ENODEV;
if (supported == I915_GTT_PAGE_SIZE_4K)
return 0;
/*
* Sanity check creating objects with a varying mix of page sizes --
* ensuring that our writes lands in the right place.