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From: Roland Dreier <rdreier@cisco.com>
To: lsorense@csclub.uwaterloo.ca (Lennart Sorensen)
Cc: takada <takada@mbf.nifty.com>,
	pcnet32@verizon.net, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: MediaGX/GeodeGX1 requires X86_OOSTORE.
Date: Mon, 19 Feb 2007 11:48:27 -0800	[thread overview]
Message-ID: <ada3b5253p0.fsf@cisco.com> (raw)
In-Reply-To: <20070219145514.GO7582@csclub.uwaterloo.ca> (Lennart Sorensen's message of "Mon, 19 Feb 2007 09:55:14 -0500")

 > Does anyone know if there is any way to flush a cache line of the cpu to
 > force rereading system memory for a given address or address range?

There is the "clflush" instruction, but not all x86 CPUs support it.
You need to check the CPUID flag to know for sure (/proc/cpuinfo will
show a "clflush" flag if it is supported).

  reply	other threads:[~2007-02-19 19:48 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-16 16:21 Re: Strange connection slowdown on pcnet32 pcnet32
2007-02-16 17:21 ` Lennart Sorensen
2007-02-16 20:23   ` Lennart Sorensen
2007-02-16 21:01     ` Lennart Sorensen
2007-02-16 22:27       ` Lennart Sorensen
2007-02-16 22:48         ` MediaGX/GeodeGX1 requires X86_OOSTORE. (Was: Re: Strange connection slowdown on pcnet32) Lennart Sorensen
2007-02-17  0:00           ` Lennart Sorensen
2007-02-17 14:11             ` MediaGX/GeodeGX1 requires X86_OOSTORE takada
2007-02-17 15:07               ` Lennart Sorensen
2007-02-19 14:55               ` Lennart Sorensen
2007-02-19 19:48                 ` Roland Dreier [this message]
2007-02-19 19:57                   ` Lennart Sorensen
2007-02-19 23:56                   ` takada
2007-02-20  0:02                     ` Lennart Sorensen
2007-02-20 11:34                       ` takada
2007-02-20 14:48                         ` Lennart Sorensen
2007-03-15  5:39                           ` takada
2007-03-15 17:31                             ` Lennart Sorensen
2007-03-17 13:08                               ` takada
2007-03-19 18:23                                 ` Lennart Sorensen
2007-02-19 20:11       ` Re: Strange connection slowdown on pcnet32 Lennart Sorensen
2007-02-19 22:18         ` Lennart Sorensen
2007-02-19 22:29           ` Lennart Sorensen
2007-02-19 23:45             ` Lennart Sorensen
2007-02-19 23:59               ` Lennart Sorensen
2007-02-20 21:44                 ` Lennart Sorensen

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