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 [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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