On Wed, Mar 05, 2014 at 08:59:56AM -0800, Volkin, Bradley D wrote: > On Wed, Mar 05, 2014 at 02:46:35AM -0800, Daniel Vetter wrote: > > On Tue, Feb 18, 2014 at 10:15:44AM -0800, bradley.d.volkin@xxxxxxxxx wrote: > > > From: Brad Volkin <bradley.d.volkin@xxxxxxxxx> > > > 3) Coherency. I've previously found a coherency issue on VLV when reading the > > > batch buffer from the CPU during execbuffer2. Userspace writes the batch via > > > pwrite fast path before calling execbuffer2. The parser reads stale data. > > > This works fine on IVB and HSW, so I believe it's an LLC vs. non-LLC issue. > > > It's possible that the shmem pread refactoring fixes this, I just have not > > > been able to retest due to lack of a VLV system. > > > > Is it still true that we need to test this on vlv? The shmem_pread path > > really should have fixed this ... Otherwise I think this looks ready to go > > in, I'll pester Jani for the review. > > Yes, I still don't have a system to test on. Steal one? I guess we'll notice when our QA runs all this stuff on theirs ;-) Cheers, Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
