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>
Hello,

> I take a look at some source files, but I'm afraid current wsfb driver
> is still problematic.
>
> - wsfb uses WSDISPLAYIO_LINEBYTES ioctl() and WSDISPLAYIO_MODE_DUMBFB
>   flag for WSDISPLAYIO_SMODE to mmap(), but they were added after 2.0
>   was branched.
> - Only sparc64/dev/ffb.c supports these new ioctls, doesn't it?
That may well be - machfb and macppc's ofb certainly don't.
Although my extended ofb monitors WSDISPLAYIO_SMODE to do some cleanup 
when the Xserver exits.

> - IMHO, these ioctls (taken from OpenBSD?) seem really stupid.
>   I think we should have more generic ioctl which returns whole info
>   about MI rasops(9), which includes screen size, bitmap vaddr
>   for mmap(), depth, and stride etc. rather than limited ioctls for
>   LINEBYTES, DUMB or so.
Agreed.
There's WSDISPLAYIO_GINFO, maybe it should be extended a little. I'm 
not sure how generic this is but ofb (and therefore machfb too) maps 
the framebuffer when you mmap something between 0 and VRAM_size ( or 
aperture_size ) and additionally whatever it finds in OF's 
addigned-addresses property which more or less corresponds to the PCI 
BARs.

have fun
Michael
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