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authorJérôme Glisse <jglisse@redhat.com>2015-07-09 14:19:30 -0400
committerDave Airlie <airlied@redhat.com>2015-07-17 18:18:04 +1000
commite9308884878942c618a42cab122df80fbf458dc9 (patch)
tree2f03adf139e17a71725c97f6a88a18affa5f24be /lib/lz4
parentef2b731759b9ae6380c9728b60ce92cf32683e94 (diff)
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drm/ttm: improve uncached page deallocation.
Calls to set_memory_wb() incure heavy TLB flush and IPI cost. To minimize those wait until pool grow beyond batch size before draining the pool. Signed-off-by: Jérôme Glisse <jglisse@redhat.com> Reviewed-by: Mario Kleiner <mario.kleiner.de@gmail.com> Reviewed-and-Tested-by: Michel Dänzer <michel@daenzer.net> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Thomas Hellstrom <thellstrom@vmware.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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