On Thu, Nov 20, 2014 at 09:56:25AM +0100, Thomas Hellstrom wrote: > It happens on occasion that developers of generic user-space applications > abuse the dumb buffer API to get hold of drm buffers that they can both > mmap() and use for GPU acceleration, using the assumptions that dumb buffers > and buffers available for GPU are > a) The same type and can be aribtrarily type-casted. > b) fully coherent. Both (a) and (b) are true for intel and it turns out to be a requirement for smooth transitions from the boot splash screens into X, and relied upon by userspace. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/dri-devel
