linux-kernel - Re: [PATCH v2 3/3] drm: switch drm_fb_xrgb8888_to_rgb888_dstclip to accept _

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Message-ID: <cb9f6d26-b169-1872-7d52-584d3f1daf62@tronnes.org>
Date:   Wed, 10 Apr 2019 11:45:00 +0200
From:   Noralf Trønnes <noralf@...nnes.org>
To:     Gerd Hoffmann <kraxel@...hat.com>, dri-devel@...ts.freedesktop.org
Cc:     David Airlie <airlied@...ux.ie>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:DRM DRIVER FOR QEMU'S CIRRUS DEVICE" 
        <virtualization@...ts.linux-foundation.org>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Dave Airlie <airlied@...hat.com>, Sean Paul <sean@...rly.run>
Subject: Re: [PATCH v2 3/3] drm: switch drm_fb_xrgb8888_to_rgb888_dstclip to
 accept __iomem dst



Den 10.04.2019 08.38, skrev Gerd Hoffmann:
> Not all archs have the __io_virt() macro, so cirrus can't simply convert
> pointers that way.  The drm format helpers have to use memcpy_toio()
> instead.
> 
> This patch makes drm_fb_xrgb8888_to_rgb888_dstclip() accept a __iomem
> dst pointer and use memcpy_toio() instead of memcpy().  The helper
> function (drm_fb_xrgb8888_to_rgb888_line) has been changed to process a
> single scanline.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>
> ---

Reviewed-by: Noralf Trønnes <noralf@...nnes.org>