Re: [linux-fbdev] [PATCH] clgenfb on PPC
On Wed, Jan 03, 2001 at 01:50:46PM +0100, Geert Uytterhoeven wrote: > On Tue, 2 Jan 2001, Tom Rini wrote: > > Hey all. While going through the 2.4 tree and removing dead CONFIG_xxx's for > > PPC stuff, I noticed clgenfb still had CONFIG_PREP stuff (which may have > > partily explained why it no longer worked here). I've attached a patch, that > > with another patch to fix some PCI issues on certain machines, gives me a > > working (so far, can't test heavily yet tho) framebuffer on my powerstack. > > > > Comments? > > To me it looks like most of them depend on `big endian', not on `PReP'. Possibly... I don't have or know anyone with the MacPicasso video card, which is the only other card which may have this. :) > BTW, doesn't the Cirrus Logic graphics chip have a big endian aperture? I > don't like things like green.offset = -3, since it will probably break some > applications (did you run X?). I finally got the machine up w/ an nfsroot, and played around a bit. w/o the patch (ie isPReP always 0) I don't get a console, but a few lines of pixels in a row, and random pixels here and there. Since the original logic was for PReP only, I'm inclined to think that keeping it at just _machine == _MACH_prep is the safest way to go, for the moment. BTW, with or w/o the patch, XF4 (fbdev) wouldn't quite work right. The logs didn't indicate anything wrong, but the monitor went black, like X was starting, but never did. (ShadowFB on / off) -- Tom Rini (TR1265) http://gate.crashing.org/~trini/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: [linux-fbdev] [PATCH] clgenfb on PPC
On Wed, Jan 03, 2001 at 01:50:46PM +0100, Geert Uytterhoeven wrote: > On Tue, 2 Jan 2001, Tom Rini wrote: > > Hey all. While going through the 2.4 tree and removing dead CONFIG_xxx's for > > PPC stuff, I noticed clgenfb still had CONFIG_PREP stuff (which may have > > partily explained why it no longer worked here). I've attached a patch, that > > with another patch to fix some PCI issues on certain machines, gives me a > > working (so far, can't test heavily yet tho) framebuffer on my powerstack. > > > > Comments? > > To me it looks like most of them depend on `big endian', not on `PReP'. Well, I was trying to base things off the prior logic. > BTW, doesn't the Cirrus Logic graphics chip have a big endian aperture? I > don't like things like green.offset = -3, since it will probably break some > applications (did you run X?). Nope, I still need to NFS root the machine to try. I'm also wondering tho if on ppc anything other than Xbh (the Xserver writtten for these machines) will even work. -- Tom Rini (TR1265) http://gate.crashing.org/~trini/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/
Re: [linux-fbdev] [PATCH] clgenfb on PPC
On Tue, 2 Jan 2001, Tom Rini wrote:
> Hey all. While going through the 2.4 tree and removing dead CONFIG_xxx's for
> PPC stuff, I noticed clgenfb still had CONFIG_PREP stuff (which may have
> partily explained why it no longer worked here). I've attached a patch, that
> with another patch to fix some PCI issues on certain machines, gives me a
> working (so far, can't test heavily yet tho) framebuffer on my powerstack.
>
> Comments?
To me it looks like most of them depend on `big endian', not on `PReP'.
BTW, doesn't the Cirrus Logic graphics chip have a big endian aperture? I don't
like things like green.offset = -3, since it will probably break some
applications (did you run X?).
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [EMAIL PROTECTED]
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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