From: Chris Wilson Date: Fri, 22 Oct 2010 09:48:12 +0000 (+0100) Subject: drm/i915: Fix flushing regression from 9af90d19f X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=878a3c37d36142a192bdf5b6bfcf920832f431d7;p=openwrt%2Fstaging%2Fblogic.git drm/i915: Fix flushing regression from 9af90d19f Whilst moving the code around in 9af90d19f, I dropped the or'ing in of new write domains which would zero out the write domain for a render target if later reused as a source later in the batch. This meant that we might drop a required flush before reading from the render target. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=31043 Reported-by: xunx.fang@intel.com Signed-off-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index c3398d396419..9290f02215cb 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3349,7 +3349,7 @@ i915_gem_execbuffer_relocate(struct drm_i915_gem_object *obj, } target_obj->pending_read_domains |= reloc.read_domains; - target_obj->pending_write_domain = reloc.write_domain; + target_obj->pending_write_domain |= reloc.write_domain; /* If the relocation already has the right value in it, no * more work needs to be done.