On Tue, Nov 29, 2011 at 17:02, Chris Wilson <chris at chris-wilson.co.uk>wrote: > As the buffer is not necessarily accessible through the GTT at the time > of a GPU hang, and capturing some of its contents is far more valuable > than skipping it, provide a clflushed fallback read path. We still > prefer to read through the GTT as that is more consistent with the GPU > access of the same buffer. So example it will demonstrate any errorneous > tiling or swizzling of the command buffer as seen by the GPU. > > This becomes necessary with use of CPU relocations and lazy GTT binding, > but could potentially happen anyway as a result of a pathological error. > > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk> > Cc: Daniel Vetter <daniel.vetter at ffwll.ch> > Reviewed-by: Eugeni Dodonov <eugeni.dodonov at intel.com> -- Eugeni Dodonov <http://eugeni.dodonov.net/> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20111129/18848c9e/attachment.html>
