From: "Maciej W. Rozycki" <macro@linux-mips.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Josh Triplett <josh@joshtriplett.org>, Jann Horn <jann@thejh.net>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, linux-api@vger.kernel.org
Subject: Re: [PATCH] drivers/char/mem.c: Add /dev/ioports, supporting 16-bit and 32-bit ports
Date: Fri, 6 Jun 2014 10:02:42 +0100 (BST) [thread overview]
Message-ID: <alpine.LFD.2.11.1406060457410.18344@eddie.linux-mips.org> (raw)
In-Reply-To: <538FA4C7.2050206@zytor.com>
On Wed, 4 Jun 2014, H. Peter Anvin wrote:
> > Also IIRC PCI-PCI bridges only forward port I/O space accesses
> > within the low 64kB.
>
> Not true.
It must have been an implementation-specific constraint then (e.g.
DECchip 21050), it's been a while since I looked into it. Thanks for
straightening me out.
Maciej
next prev parent reply other threads:[~2014-06-06 9:02 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-09 19:19 Josh Triplett
2014-05-09 19:21 ` [PATCH] mem.4, ioports.4: Document /dev/ioports Josh Triplett
2014-05-13 8:27 ` Michael Kerrisk (man-pages)
2014-05-09 19:58 ` [PATCH] drivers/char/mem.c: Add /dev/ioports, supporting 16-bit and 32-bit ports Arnd Bergmann
2014-05-09 20:54 ` H. Peter Anvin
2014-05-09 21:12 ` Arnd Bergmann
2014-05-09 21:20 ` H. Peter Anvin
2014-05-09 22:38 ` Josh Triplett
2014-05-13 22:10 ` H. Peter Anvin
2014-05-15 21:56 ` josh
2014-05-19 12:36 ` Arnd Bergmann
2014-05-28 21:41 ` H. Peter Anvin
2014-05-29 9:26 ` Arnd Bergmann
2014-05-29 13:38 ` H. Peter Anvin
2014-05-30 11:32 ` Arnd Bergmann
2015-12-22 10:52 ` Santosh Shukla
2015-12-22 21:56 ` Arnd Bergmann
2015-12-22 22:02 ` H. Peter Anvin
2015-12-22 22:11 ` Arnd Bergmann
2015-12-23 11:34 ` Santosh Shukla
2015-12-29 13:28 ` Arnd Bergmann
2015-12-29 15:53 ` Santosh Shukla
2015-12-29 15:55 ` Santosh Shukla
2015-12-29 16:20 ` Arnd Bergmann
2015-12-29 16:30 ` Santosh Shukla
2015-12-29 17:31 ` Alex Williamson
2015-12-31 9:33 ` Santosh Shukla
2015-12-31 15:41 ` Alex Williamson
2016-01-07 9:31 ` Santosh Shukla
2014-05-10 7:07 ` Jann Horn
2014-05-10 19:32 ` Josh Triplett
2014-05-11 12:50 ` Jann Horn
2014-05-11 21:05 ` Josh Triplett
2014-06-01 10:35 ` Maciej W. Rozycki
2014-06-04 22:59 ` H. Peter Anvin
2014-06-06 9:02 ` Maciej W. Rozycki [this message]
2014-05-10 17:18 ` Greg Kroah-Hartman
2014-05-10 19:36 ` Josh Triplett
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