On Fri, Aug 16, 2013 at 05:31:39PM -0700, Tom Stellard wrote: > On Fri, Aug 16, 2013 at 03:34:09PM -0700, Greg KH wrote: > > On Fri, Aug 16, 2013 at 05:47:39PM -0400, Tom Stellard wrote: > > > From: Tom Stellard <thomas.stellard@xxxxxxx> > > > > > > Also add a new RADEON_INFO query to check that CP DMA packets are > > > supported on the compute ring. > > > > > > v2: > > > - Don't bump kms version, so this patch can be backported to stable > > > kernels. > > > > Why is this for a stable kernel? What reported problem does it fix? > > > > CP DMA has been supported since the 3.8 kernel, but due to an oversight > we forgot to teach the CS checker that the CP DMA packet was legal for > the compute ring on Southern Islands GPUs. > > This patch fixes a bug where the radeon driver will incorrectly reject a legal > CP DMA packet from user space. I would like to have the patch > backported to stable so that we don't have to require Mesa users to use a > bleeding edge kernel in order to take advantage of this feature which > is already present in the stable kernels (3.8 and newer). Then please put that in the changelog section of the patch, otherwise people (like me), will ask these types of things :) thanks, greg k-h _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
