linux-kernel - Re: [PATCH] drm/bochs: switch fb_ops over to use drm_fb_helper

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Message-ID: <1499072103.771.7.camel@redhat.com>
Date:   Mon, 03 Jul 2017 10:55:03 +0200
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     Mark Cave-Ayland <mark.cave-ayland@...nde.co.uk>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/bochs: switch fb_ops over to use drm_fb_helper_cfb
 helpers

  Hi,

> Hopefully Gerd has experience using bochs_drm with other non-x86
> systems
> and can comment further.

Just pushed to drm-misc-next, fix is correct.  bochs video memory is a
pci bar, and the framebuffer is stored there.

Using sys instead of cfb is probably a leftover from cirrus, where the
framebuffer actually in a shadow copy in system ram, due to the low
amout of (pci) video memory.

cheers,
  Gerd