[PATCH 29/32] fbdev: Push pgprot_decrypted() into mmap implementations

[Javier Martinez Canillas]

Thomas Zimmermann <tzimmermann at suse.de> writes:

> If a driver sets struct fb_ops.fb_mmap, the fbdev core automatically
> calls pgprot_decrypted(). But the default fb_mmap code doesn't handle
> pgprot_decrypted().
>
> Move the call to pgprot_decrypted() into each drivers' fb_mmap function.
> This only concerns fb_mmap functions for system and DMA memory. For
> I/O memory, which is the default case, nothing changes. The fb_mmap
> for I/O-memory can later be moved into a helper as well.
>
> DRM's fbdev emulation handles pgprot_decrypted() internally via the
> Prime helpers. Fbdev doesn't have to do anything in this case. In
> cases where DRM uses deferred I/O, this patch updates fb_mmap correctly.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
> ---

Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat