Re: [PATCH 00/11] SimpleDRM & Sysfb

From: David Herrmann
Date: Mon Jan 27 2014 - 17:18:58 EST


Hi

On Thu, Jan 23, 2014 at 3:14 PM, David Herrmann <dh.herrmann@xxxxxxxxx> wrote:
> Hi
>
> Another round of SimpleDRM patches. I somehow lost track of the last ones and as
> this is a major rewrite, I'll just start at v1 again.
>
> Some comments up-front:
>
> - @Ingo: Patch #1 and #2 are unchanged from the previous ML discussions. I
> included them in this series as the other patches depend on them. Could you
> pick them up for the x86 tree? The other 9 patches won't make it in 3.14 so
> no reason to put them through the DRM tree.
> All mentioned issues should be addressed. If there's still sth missing,
> please let me know.
>
> - The DRM patches depend on my "DRM Anonymous Inode" patches. But it should be
> trivial to apply them on drm-next (I think only one line needs to be changed:
> i_mapping => dev_mapping).
>
> - I tested the SimpleDRM fbdev fallback with linux-console+Xorg and it works
> fine. The DRM backend is only tested with some DRM tests I have locally. I
> have no idea how to make Xorg pick up a specific /dev/dri/card0 card. It
> always tells me "no screens found" (as the underlying device is not marked as
> boot_vga..). If someone knows how to tell Xorg to use card0, I'd gladly test
> this. But I'm no longer used to writing xorg.confs..

For completeness, I tested this with Xorg+xf86-video-modesetting and
it works just fine. The xorg.conf I used can be found below. If this
driver gets upstreamed, I will try to make the X11 auto-loader detect
it just like any other platform-device.

Thanks
David


Section "ServerLayout"
Identifier "MyLayout"
Screen 0 "MyScreen" 0 0
EndSection

Section "Device"
Identifier "MyDevice"
Driver "modesetting"
BusID "platform:/sys/devices/platform/simple-framebuffer.0"
Screen 0
EndSection

Section "Screen"
Identifier "MyScreen"
Device "MyDevice"
EndSection
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