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path: root/drivers/gpu/drm/i915/selftests/i915_buddy.c
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* drm/i915/selftests: cond_resched() within the longer buddy testsChris Wilson2019-08-291-0/+4
| | | | | | | | | | | Let the scheduler have a breather in between passes of the longer buddy tests. Important if we are running under kasan etc and this takes far longer than usual! Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.auld@intel.com> Reviewed-by: Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190829170848.969-1-chris@chris-wilson.co.uk
* drm/i915/selftest/buddy: fixup igt_buddy_alloc_rangeMatthew Auld2019-08-151-0/+1
| | | | | | | | | | | | | | | Dan reported the following static checker warning: drivers/gpu/drm/i915/selftests/i915_buddy.c:670 igt_buddy_alloc_range() error: we previously assumed 'block' could be null (see line 665) Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190815103210.11802-1-matthew.auld@intel.com
* drm/i915: buddy allocatorMatthew Auld2019-08-101-0/+719
Simple buddy allocator. We want to allocate properly aligned power-of-two blocks to promote usage of huge-pages for the GTT, so 64K, 2M and possibly even 1G. While we do support allocating stuff at a specific offset, it is more intended for preallocating portions of the address space, say for an initial framebuffer, for other uses drm_mm is probably a much better fit. Anyway, hopefully this can all be thrown away if we eventually move to having the core MM manage device memory. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20190809202926.14545-2-matthew.auld@intel.com
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