On Tue, 13 Oct 2015, Daniel Vetter <daniel@xxxxxxxx> wrote: > On Tue, Oct 13, 2015 at 03:45:58PM +0300, Jani Nikula wrote: >> On Wed, 26 Aug 2015, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: >> > On Wed, Aug 26, 2015 at 11:16:34AM +0200, Daniel Vetter wrote: >> >> On Fri, Aug 21, 2015 at 04:08:41PM +0100, Chris Wilson wrote: >> >> > In order to flush the results from in-batch pipecontrol writes (used for >> >> > example in glQuery) before declaring the batch complete (and so declaring >> >> > the query results coherent), we need to set the FlushEnable bit in our >> >> > flushing pipecontrol. The FlushEnable bit "waits until all previous >> >> > writes of immediate data from post-sync circles are complete before >> >> > executing the next command". >> >> > >> >> > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> >> >> > Cc: stable@xxxxxxxxxxxxxxx >> >> >> >> Do we have an igt/piglit failing somewhere (igt kinda preferred) or a >> >> bugzilla or why is this cc: stable? >> > >> > I get GPU hangs on byt without flushing these writes (running ue4). >> > piglit has examples where the flush is required for correct rendering. >> >> Daniel, does this satisfy your question? We've had an r-b from Ville for >> a long time. > > Yeah, just add that bit to the commit message to justify cc: stable. Pushed to drm-intel-fixes, thanks for the patch and review. BR, Jani. > -Daniel > -- > Daniel Vetter > Software Engineer, Intel Corporation > http://blog.ffwll.ch -- Jani Nikula, Intel Open Source Technology Center -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html