[PATCH 2/4] fbdev/hyperv_fb: Remove firmware framebuffers with aperture helpers

[Javier Martinez Canillas]

Thomas Zimmermann <tzimmermann at suse.de> writes:

> Replace use of screen_info state with the correct interfaces from
> the aperture helpers. The state is only for architecture and firmware
> code. It is not guaranteed to contain valid data. Drivers are thus
> not allowed to use it.
>
> For removing conflicting firmware framebuffers, there are aperture
> helpers. Hence replace screen_info with the correct functions that will
> remove conflicting framebuffers for the hypervfb driver. For GEN1 PCI
> devices, the driver reads the framebuffer base and size from the PCI
> BAR, and uses the range for removing the firmware framebuffer. For
> GEN2 VMBUS devices no range can be detected, so the driver clears all
> firmware framebuffers.
>
> 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