Commits
Matthew Auld committed aaa914cd1c6
drm/i915/gtt: disable 2M pages for pre-gen11 We currently disable THP(Transparent-Huge-Pages) for our shmem objects due to a performance regression with read BW in some internal benchmarks. Given that this is our main source of 2M pages, there really isn't much point in enabling 2M GTT pages, especially as that comes at the cost of disabling the GTT cache. However from gen11 it looks like we should hopefully see the HW issue resolved. Given this opt for only enabling 2M GTT pages from gen11 onwards. Signed-off-by: Matthew Auld <matthew.auld@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.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/20190809193456.3836-2-matthew.auld@intel.com