From: Ralf Baechle <ralf@oss.sgi.com> Subject: Re: PATCH: Always use ll/sc for mips Date: Thu, 4 Jul 2002 15:57:26 +0200 > No, Sony's ABI isn't MP proof and will break silently on MP systems. As > such I can't consider it anything else but a hack. sysmips(MIPS_ATOMIC_SET, > ...) and ll/sc however are MP proof. We can support MP with few modifications. On MP system, the pseudo-device will provide ll/sc if CPU support it. Otherwise, the pseudo-device will be failed to open. In this case, sysmips() will be used as last resort in libc. --- Hiroyuki Machida Sony Corp.
