2549d6c26c
... perform an access validation check up front instead and copy them in on-demand, during i915_gem_object_pin_and_relocate(). As around 20% of the CPU overhead may be spent inside vmalloc for the relocation entries when submitting an execbuffer [for x11perf -aa10text], the savings are considerable and result in around a 10% throughput increase [for glyphs]. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> |
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