Re: X server support?

[Michael Lorenz <macallan%netbsd.org@localhost>]

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Hello,

On Sep 9, 2008, at 11:34 PM, KIYOHARA Takashi wrote:

> I want support the X server for port bebox and prep.
> What should I first do?
>
> I copied some files of /usr/X11R6/lib/modules of macppc.  And, mmap  
> tried
> the map of 0xfc000000 and it failed though Driver was set to s3 in
> XF86Config for bebox.

Sure it wasn't 0xf2000000? That would be the Xserver trying to mmap  
the PCI IO space.

> I will try wsfb_drv.o of port ofppc tonight.

Should be identical to macppc's.

Anyway, to get the S3 to work you'll likely have to support macppc's  
mechanism to mmap PCI IO space ( ofppc and shark use it too ).  
Basically - look at genfb_pci.c, grep it for PCI_MAGIC_IO_RANGE, pick  
an offset that's safe on your hardware ( it may or may not correspond  
to the real bus address of the PCI IO space but X and genfb need to  
agree about it and no PCI BARs should EVER be mapped there ). Put
#define PCI_MAGIC_IO_RANGE 0xwhatever
into param.h and rebuild both X and the kernel.
If 0xf2000000 is safe just use it and you can use macppc's binaries.

To build X on bebox or prep just do as macppc does ( as in - grep  
Makefiles under src/x11 for macppc and add bebox & prep )

have fun
Michael

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