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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: dwmw2@infradead.org (David Woodhouse)
Cc: frival@zk3.dec.com (Peter Rival),
	paulus@samba.org, Martin.Bligh@us.ibm.com (Martin J. Bligh),
	alan@lxorguk.ukuu.org.uk (Alan Cox),
	torvalds@transmeta.com, linux-kernel@vger.kernel.org,
	jay.estabrook@compaq.com, rth@twiddle.net
Subject: Re: [PATCH] change name of rep_nop
Date: Mon, 8 Oct 2001 23:49:41 +0100 (BST)	[thread overview]
Message-ID: <E15qjDR-0002AQ-00@the-village.bc.nu> (raw)
In-Reply-To: <13962.1002580586@redhat.com> from "David Woodhouse" at Oct 08, 2001 11:36:26 PM

> While we're on the subject of stupidly named routines and x86-isms, I'm 
> having trouble reconciling this text in Documentation/cachetlb.txt:
> 
> 	1) void flush_cache_all(void)
> 
> 	        The most severe flush of all.  After this interface runs,
> 	        the entire cpu cache is flushed.

I suspect the real definition should be

	"After this interface runs the device and other views of 
	 memory includes all dirty cache lines on the processor. On 
	 processors with cache coherent bus interfaces this may well
	 be a no operation

	 Footnote: AGP tends to have its own coherency and caching setup
	 so the AGP drivers use their own interfaces to avoid needless
	 overhead"


  reply	other threads:[~2001-10-08 22:45 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-10-05 10:46 Paul Mackerras
2001-10-05 14:37 ` Alan Cox
2001-10-05 18:06   ` Peter Rival
2001-10-05 23:28   ` Paul Mackerras
2001-10-05 23:54     ` Martin J. Bligh
2001-10-06  1:40     ` Paul Mackerras
2001-10-08 19:27       ` Peter Rival
2001-10-08 22:36       ` David Woodhouse
2001-10-08 22:49         ` Alan Cox [this message]
2001-10-08 23:06         ` David Woodhouse
2001-10-08 23:42           ` David Woodhouse
2001-10-08 23:46           ` David S. Miller
2001-10-08 23:08         ` David S. Miller
2001-10-08 23:46         ` Linus Torvalds
2001-10-09  0:03           ` David Woodhouse
2001-10-08 22:46       ` David S. Miller
2001-10-08 23:16         ` Alan Cox
2001-10-08 23:24           ` Dave Jones
2001-10-08 23:33             ` Alan Cox
2001-10-09  5:01             ` George Greer
2001-10-08 23:30           ` David S. Miller
2001-10-09 10:33           ` Benjamin Herrenschmidt
2001-10-09 11:30             ` Keith Owens
2001-10-09 12:13               ` Benjamin Herrenschmidt
2001-10-09 12:15               ` Alan Cox
2001-10-09  8:51 Etienne Lorrain
2001-10-09 11:30 ` Alan Cox

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