| commit | 2549d6c26ce1c85a76990b972a2c7e8f440455cd | [log] [tgz] |
|---|---|---|
| author | Chris Wilson <chris@chris-wilson.co.uk> | Thu Oct 14 12:10:41 2010 +0100 |
| committer | Chris Wilson <chris@chris-wilson.co.uk> | Tue Oct 19 09:18:36 2010 +0100 |
| tree | 1e9e3f948ca2f15a1c98c76f1307f87174fd7252 | |
| parent | 55b7d6e8c4690047ac001026cb75a47f747db816 [diff] |
drm/i915: Avoid vmallocing a buffer for the relocations ... 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>