From: Damien Lespiau Date: Sat, 14 Feb 2015 18:30:29 +0000 (+0000) Subject: drm/i915/skl: Tune IZ hashing when subslices are unbalanced X-Git-Tag: omap-for-v4.1/fixes-rc1~82^2~33^2~42 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b76687910693b1f6c32a3251a8291d67363bba34;p=pandora-kernel.git drm/i915/skl: Tune IZ hashing when subslices are unbalanced When one EU is disabled in a particular subslice, we can tune how the work is spread between subslices to improve EU utilization. v2: - Use a bitfield to record which subslice(s) has(have) 7 EUs. That will also make the machinery work if several sublices have 7 EUs. (Jeff Mcgee) - Only apply the different hashing algorithm if the slice is effectively unbalanced by checking there's a single subslice with 7 EUs. (Jeff Mcgee) v3: Fix typo in comment (Jeff Mcgee) Issue: VIZ-3845 Cc: Jeff Mcgee Reviewed-by: Jeff Mcgee Signed-off-by: Damien Lespiau Signed-off-by: Daniel Vetter --- Reading git-diff-tree failed