From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 7 Nov 2017 11:05:59 +0000
Subject: drm/i915/selftests: Skip mixed page exhaustion if only small pages
available
Git-commit: f6d03042b9ad514077175b5cc53069e0a364d0ec
Patch-mainline: v4.16-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
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>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/i915/selftests/huge_pages.c | 3 +++
1 file changed, 3 insertions(+)
--- a/drivers/gpu/drm/i915/selftests/huge_pages.c
+++ b/drivers/gpu/drm/i915/selftests/huge_pages.c
@@ -1159,6 +1159,9 @@ static int igt_ppgtt_exhaust_huge(void *
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.