From: "H. Peter Anvin" <hpa@zytor.com>
To: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Andi Kleen <ak@suse.de>,
Linus Torvalds <torvalds@linux-foundation.org>,
Jesse Barnes <jesse.barnes@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: Intel Memory Ordering White Paper
Date: Sat, 08 Sep 2007 15:37:34 -0500 [thread overview]
Message-ID: <46E3080E.9060403@zytor.com> (raw)
In-Reply-To: <200709080632.05389.nickpiggin@yahoo.com.au>
Nick Piggin wrote:
> smp_rmb() should not need to do anything because loads are done
> in order anyway. Both AMD and Intel have committed to this now.
>
> The important point is that they *appear* to be done in order. AFAIK,
> the CPUs can still do speculative and out of order loads, but throw
> out the results if they could be wrong.
Is there anything even semiofficial from VIA? Not that the x86
architecture isn't pretty much definable as the AMD-Intel consensus...
-hpa
next prev parent reply other threads:[~2007-09-08 20:38 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-07 22:26 Intel Memory Ordering White Paper Jesse Barnes
2007-09-08 8:54 ` Nick Piggin
2007-09-07 23:20 ` Linus Torvalds
2007-09-08 17:34 ` Nick Piggin
2007-09-08 17:48 ` Nick Piggin
2007-09-07 18:13 ` Nick Piggin
2007-09-08 8:53 ` Andi Kleen
2007-09-07 19:57 ` Nick Piggin
2007-09-08 10:19 ` Andi Kleen
2007-09-07 20:32 ` Nick Piggin
2007-09-08 20:37 ` H. Peter Anvin [this message]
2007-09-08 11:34 ` dean gaudet
2007-09-08 12:08 ` Petr Vandrovec
2007-09-08 12:27 ` dean gaudet
2007-09-08 10:30 ` Alan Cox
2007-09-07 20:46 ` Nick Piggin
2007-09-08 10:29 ` Alan Cox
2007-09-07 20:49 ` Nick Piggin
2007-09-08 14:11 ` Alan Cox
2007-09-12 18:26 ` Dr. David Alan Gilbert
2007-09-19 16:26 ` Jesse Barnes
2007-09-19 17:29 ` Andi Kleen
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