On 3/3/22 21:58, Thomas Zimmermann wrote:
> The fbdev mmap function fb_mmap() unconditionally overrides the
> driver's implementation if deferred I/O has been activated. This
> makes it hard to implement mmap with anything but a vmalloc()'ed
> software buffer. That is specifically a problem for DRM
The fbdev mmap function fb_mmap() unconditionally overrides the
driver's implementation if deferred I/O has been activated. This
makes it hard to implement mmap with anything but a vmalloc()'ed
software buffer. That is specifically a problem for DRM, where
video memory is maintained by a memory man
