Commit 88b39600 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915/selftests: Improve handling of iomem around stolen 



Use memset_io() on the iomem, and silence sparse as we copy from the
iomem to normal system pages.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarTvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210106123939.18435-2-chris@chris-wilson.co.uk
parent 989536a4

drivers/gpu/drm/i915/gt/selftest_reset.c

+5 −5
Original line number Diff line number Diff line
@@ -96,10 +96,10 @@ __igt_reset_stolen(struct intel_gt *gt, 
		if (!__drm_mm_interval_first(&gt->i915->mm.stolen,

					     page << PAGE_SHIFT,

					     ((page + 1) << PAGE_SHIFT) - 1))

			memset32(s, STACK_MAGIC, PAGE_SIZE / sizeof(u32));

			memset_io(s, STACK_MAGIC, PAGE_SIZE);



		in = s;

		if (i915_memcpy_from_wc(tmp, s, PAGE_SIZE))

		in = (void __force *)s;

		if (i915_memcpy_from_wc(tmp, in, PAGE_SIZE))

			in = tmp;

		crc[page] = crc32_le(0, in, PAGE_SIZE);
@@ -134,8 +134,8 @@ __igt_reset_stolen(struct intel_gt *gt, 
				      ggtt->error_capture.start,

				      PAGE_SIZE);



		in = s;

		if (i915_memcpy_from_wc(tmp, s, PAGE_SIZE))

		in = (void __force *)s;

		if (i915_memcpy_from_wc(tmp, in, PAGE_SIZE))

			in = tmp;

		x = crc32_le(0, in, PAGE_SIZE);