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From: "H. Peter Anvin" <hpa@zytor.com>
To: Ulrich Drepper <drepper@redhat.com>
Cc: Andi Kleen <ak@suse.de>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>
Subject: Re: Why ssse3?
Date: Wed, 02 May 2007 19:28:40 -0700	[thread overview]
Message-ID: <463948D8.4000303@zytor.com> (raw)
In-Reply-To: <4639171A.3050004@redhat.com>

Ulrich Drepper wrote:
> Andi Kleen wrote:
>> Nope. SSE3 != SSSE3. The additional S means Supplemential.
>>
>> It's probably because the few changes didn't justify a SSE4
> 
> OK, the problem is that the actual sse3 bit is misnamed.  According to
> Intel's docs bit 0 of ECX is "sse", the kernel uses "pni".  Too bad.

Intel has a nasty habit of renaming things after they are already
deployed in Linux.

	-hpa

  reply	other threads:[~2007-05-03  2:28 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-02 22:41 Why ssse3? Ulrich Drepper
2007-05-02 22:46 ` Andi Kleen
2007-05-02 22:56   ` Ulrich Drepper
2007-05-03  2:28     ` H. Peter Anvin [this message]
2007-05-03  8:52     ` Andi Kleen
2007-05-03  9:02       ` Avi Kivity
2007-05-03  9:07         ` Andi Kleen
2007-05-03 16:03       ` Roland Dreier
2007-05-02 22:47 ` Ismail Dönmez

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