From: "Jerry Quinn" <jquinn@nortelnetworks.com>
To: Benjamin Herrenschmidt <bh40@calva.net>
Cc: linuxppc-dev@lists.linuxppc.org, mlan@cpu.lu
Subject: Re: Q: control is a C&T 65550?
Date: Fri, 11 Jun 1999 15:03:51 -0400 [thread overview]
Message-ID: <37615D97.EF08C746@americasm01.nt.com> (raw)
In-Reply-To: 19990611180811.016528@mail.mipsys.com
Benjamin Herrenschmidt wrote:
>
> On Fri, Jun 11, 1999, Michel Lanners <mlan@cpu.lu> wrote:
>
[snip]
> >What a shame! After all, the control hardware can be seen as a legacy
> >device, being surpassed by any and all current video chips... or might
> >Apple be hiding some really cool and powerful feature deep inside
> >control? I doubt it....
>
> I don't think so. There is however some kind of "graphic accelerator" for
> control in MacOS, It's quite small, I don't know if it only provides
> better blit routines optimised for non-cachable space, or eventually
> hacks the MMU to make the fb space cahable (for bursts), I don't think
> there's anything like a blitter or a DMA engine in control.
Do you have any guess what the graphic accelerator for Platinum does?
At the moment, platinum is also used just as a frame buffer.
--
Jerry Quinn Tel: (514) 761-8737
jquinn@nortelnetworks.com Fax: (514) 761-8505
Speech Recognition Research
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prev parent reply other threads:[~1999-06-11 19:03 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-06-08 11:51 Q: control is a C&T 65550? Jason Y. Sproul
1999-06-08 13:58 ` Daniel Jacobowitz
1999-06-08 14:00 ` Geert Uytterhoeven
1999-06-08 14:12 ` Daniel Jacobowitz
1999-06-08 14:16 ` Geert Uytterhoeven
1999-06-08 23:54 ` Paul Mackerras
1999-06-09 0:16 ` Daniel Jacobowitz
1999-06-09 0:55 ` Paul Mackerras
1999-06-09 1:19 ` Daniel Jacobowitz
1999-06-10 21:14 ` Michel Lanners
1999-06-10 20:51 ` Michel Lanners
1999-06-10 20:57 ` Daniel Jacobowitz
1999-06-11 5:43 ` Michel Lanners
1999-06-11 16:08 ` Benjamin Herrenschmidt
1999-06-11 19:03 ` Jerry Quinn [this message]
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