On Wed, Jan 29, 2014 at 10:53 PM, Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> wrote: > On Wed, Jan 29, 2014 at 09:25:51PM +0100, Daniel Vetter wrote: >> So originally I've thought we need this due to the massive overhead of the >> mmu notifier. But now with the nice shared mmu notifiers I've thought that >> overhead is gone I prefer to also ditch this option. >> >> Same goes about the MMU_NOTIFIER conditional code, imo we simply should >> select this - most distros will have it anyway and users will be really >> suprised if they lose userspace driver features for seemingly irrelevant >> reasons. > > Seriously? You think the overhead is magically gone? Well the once-per-process overhead is still there, and imo it's ok to eat that. But the complaints I've heard concerned the per-object overhead, so I wonder how much of that is still relevant. -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
