From: Chris Wilson Date: Wed, 17 Jun 2009 21:08:52 +0000 (+0100) Subject: drm/i915: Install fence register for tiled scanout on i915 X-Git-Tag: v2.6.31-rc1~101^2~20 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c4b8c3f34de4e2da20df042bba173fe557f8b45;p=pandora-kernel.git drm/i915: Install fence register for tiled scanout on i915 With the work by Jesse Barnes to eliminate allocation of fences during execbuffer, it becomes possible to write to the scan-out buffer with it never acquiring a fence (simply by only ever writing to the object using tiled GPU commands and never writing to it via the GTT). So for pre-i965 chipsets which require fenced access for tiled scan-out buffers, we need to obtain a fence register. Signed-off-by: Chris Wilson Signed-off-by: Eric Anholt --- Reading git-diff-tree failed