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Re: MIPS_ATOMIC_SET again (Re: newest kernel

To: Geert Uytterhoeven <>
Subject: Re: MIPS_ATOMIC_SET again (Re: newest kernel
From: "Maciej W. Rozycki" <>
Date: Tue, 29 May 2001 12:45:14 +0200 (MET DST)
Cc: "Kevin D. Kissell" <>,
In-reply-to: <>
Organization: Technical University of Gdansk
On Tue, 29 May 2001, Geert Uytterhoeven wrote:

> >  Then an ll/sc and lld/scd emulation seems to be most appropriate here.  I
> > don't think we want to add _test_and_set() to mips64*-linux. 
> Do you want to run a 64-bit kernel on a Vr41xx? Most of these are used in
> embedded systems, where the amount of RAM is a few orders of magnitude smaller
> than the 32-bit RAM limit.

 I have no preference on a Vr41xx, at least as long as I don't have one. 
You need an ll/sc emulation for it anyway, as you don't want to run ISA I
binaries on it, I suppose. 

 I wonder why ll/sc was skipped from it -- its hardware implementation is
quite simple... 

+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+        e-mail:, PGP key available        +

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