From: Chris Wilson Date: Fri, 24 Sep 2010 20:15:47 +0000 (+0100) Subject: drm/i915: Only enforce fence limits inside the GTT. X-Git-Tag: v2.6.38-rc1~419^2~23^2~150 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a00b10c360b35d6431a94cbf130a4e162870d661;p=pandora-kernel.git drm/i915: Only enforce fence limits inside the GTT. So long as we adhere to the fence registers rules for alignment and no overlaps (including with unfenced accesses to linear memory) and account for the tiled access in our size allocation, we do not have to allocate the full fenced region for the object. This allows us to fight the bloat tiling imposed on pre-i965 chipsets and frees up RAM for real use. [Inside the GTT we still suffer the additional alignment constraints, so it doesn't magic allow us to render larger scenes without stalls -- we need the expanded GTT and fence pipelining to overcome those...] Signed-off-by: Chris Wilson --- Reading git-diff-tree failed