Re: [PATCH 1/19] MUTEX: Introduce simple mutex implementation

[Jakub Jelinek]

On Wed, Dec 14, 2005 at 11:57:12AM +0000, David Howells wrote:
>  (1) Those that only have a limited exchange functionality. Several archs do
>      fall into this category: arm, frv, mn10300, 68000, i386.

sparc (32-bit CPUs) fall into this category too.  V7 CPUs have just
atomic load byte and store 0xff, later CPUs have swap insn, which is like
ia32 xchg.

>  (2) Those that have CMPXCHG or equivalent: 68020, i486+, x86_64, ia64, sparc.

sparc64 here.

>  (3) Those that have LL/SC or equivalent: mips (some), alpha, powerpc, arm6.

	Jakub
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/