From: "Joakim Tjernlund" <joakim.tjernlund@lumentis.se>
To: "'Dan Malek'" <dan@embeddededge.com>
Cc: <linuxppc-embedded@lists.linuxppc.org>
Subject: SV: New invalidate/clean/flush_dcache functions
Date: Tue, 24 Dec 2002 11:36:15 +0100 [thread overview]
Message-ID: <000001c2ab38$4b37edb0$73b9143e@hempc> (raw)
In-Reply-To: <3E07715D.4030002@embeddededge.com>
> Joakim Tjernlund wrote:
> >
> > How about adding new xxx_dcache_range() functions functions to PPC.
> > Below is my suggestion which is more logical and more efficient:
>
> These aren't any different from what we have, other than you give it
> a length instead of an ending address. Someone has to do that
> arithmetic anyway, and you chose to do it inside of your new functions
> when a caller may already have it available.
I choose to let gcc do the arithmetic(and it's easier to understand for
A non assembler guy). Check the assembler output included last in my
mail.
> We also try to keep these
> functions common across multiple architectures, which is especially
> important to embedded systems that may share common devices connected
> to the processor bus.
OK, what are the other arch's that have these functions?
Merry X-mas
Jocke
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-12-24 10:36 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-20 16:21 E1/T1 on mpc8260 Omanakuttan
2002-12-20 17:46 ` New invalidate/clean/flush_dcache functions Joakim Tjernlund
2002-12-21 14:25 ` Joakim Tjernlund
2002-12-22 7:00 ` Paul Mackerras
2002-12-23 13:19 ` SV: " Joakim Tjernlund
2002-12-26 4:12 ` Paul Mackerras
2002-12-26 13:52 ` SV: " Joakim Tjernlund
2004-04-26 16:41 ` High resolution timer in driver bhupinder sahran
2004-04-26 18:06 ` Wolfgang Denk
2004-04-27 15:52 ` bhupinder sahran
2002-12-27 0:58 ` SV: New invalidate/clean/flush_dcache functions Segher Boessenkool
2002-12-27 20:20 ` SV: " Joakim Tjernlund
2002-12-28 4:01 ` Segher Boessenkool
2002-12-23 20:26 ` Dan Malek
2002-12-24 10:36 ` Joakim Tjernlund [this message]
2002-12-24 17:53 ` SV: " Dan Malek
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