From: Matthew Wilcox <matthew@wil.cx>
To: Jes Sorensen <jes@linuxcare.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, parisc-linux@parisc-linux.org
Subject: Re: [parisc-linux] FB cleanups
Date: Tue, 17 Apr 2001 19:22:05 +0100 [thread overview]
Message-ID: <20010417192205.A28724@parcelfarce.linux.theplanet.co.uk> (raw)
In-Reply-To: <d366g3xv0a.fsf@lxplus015.cern.ch>; from jes@linuxcare.com on Tue, Apr 17, 2001 at 08:04:53PM +0200
On Tue, Apr 17, 2001 at 08:04:53PM +0200, Jes Sorensen wrote:
> >>>>> "Alan" == Alan Cox <alan@lxorguk.ukuu.org.uk> writes:
>
> Yes, except that ISA has stronger semantics than PCI.
You need to issue a read after a write to be sure the write hit the
device on ISA?
> >> Using writeb on a gsc is misleading everybody else who reads the
> >> code into believing that it's a PCI device.
>
> Alan> Rubbish.
>
> Unfortunately not, look at the fb code to see the chaos.
huh? the fb code is ugly precisely because people aren't using
readb/writeb to access device memory.
--
Revolutions do not require corporate support.
next prev parent reply other threads:[~2001-04-17 18:22 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-11 20:13 [parisc-linux] FB cleanups Matthew Wilcox
2001-04-11 20:30 ` Jes Sorensen
2001-04-11 20:34 ` Matthew Wilcox
2001-04-11 20:43 ` Jes Sorensen
2001-04-11 22:51 ` Matthew Wilcox
2001-04-11 22:56 ` Jes Sorensen
2001-04-11 23:00 ` Alan Cox
2001-04-12 18:48 ` Jes Sorensen
2001-04-13 7:04 ` Grant Grundler
2001-04-13 12:52 ` Alan Cox
2001-04-13 17:52 ` Grant Grundler
2001-04-13 18:13 ` Alan Cox
2001-04-11 23:36 ` Matthew Wilcox
2001-04-13 16:48 ` Jes Sorensen
2001-04-13 18:11 ` Alan Cox
2001-04-17 18:04 ` Jes Sorensen
2001-04-17 18:22 ` Matthew Wilcox [this message]
2001-04-17 19:57 ` Alan Cox
2001-04-13 7:02 ` Grant Grundler
2001-04-13 16:49 ` Jes Sorensen
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