From: Grant Grundler <grundler@parisc-linux.org>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Yinghai Lu <yinghai@kernel.org>,
Robert Hancock <hancockrwd@gmail.com>,
Jesse Barnes <jbarnes@virtuousgeek.org>,
Andrew Morton <akpm@linux-foundation.org>,
david@lang.hm, Matthew Wilcox <matthew@wil.cx>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-scsi@vger.kernel.org, DL-MPTFusionLinux@lsi.com,
linux-pci@vger.kernel.org
Subject: Re: [PATCH] pci: enable MSI on 8132
Date: Sat, 21 Feb 2009 20:42:19 -0700 [thread overview]
Message-ID: <20090222034219.GH2567@colo.lackof.org> (raw)
In-Reply-To: <m1r61sf9oo.fsf@fess.ebiederm.org>
On Sat, Feb 21, 2009 at 12:58:31AM -0800, Eric W. Biederman wrote:
...
> The difference is that there is a magic address on x86 that all MSI
> cycles are sent to. I think it is 0xfffe0000.
arch/x86/include/asm/msidef.h:#define MSI_ADDR_BASE_LO 0xfee00000
Intel spells out the details in:
http://www.intel.com/products/processor/manuals/index.htm
"Volume 3A: System Programming Guide, Part 1"
See chapter "9.4 LOCAL APIC"
> In an msi to HT
> mapping capability it is necessary to program in the address to listen
> for msi packets. That is very much an arch dependent thing.
Indeed. parisc and (AFAIK) alpha have the same ability but use completely
different address ranges depending on the chipset as well.
thanks,
grant
next prev parent reply other threads:[~2009-02-22 3:42 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-02-17 22:24 mpt fusion broken sometime since 2.6.24 david
2009-02-17 21:44 ` david
2009-02-17 23:00 ` Matthew Wilcox
2009-02-17 23:07 ` david
2009-02-17 23:11 ` Matthew Wilcox
2009-02-17 23:20 ` Yinghai Lu
2009-02-17 23:21 ` david
2009-02-17 23:11 ` Yinghai Lu
2009-02-17 23:20 ` david
2009-02-17 23:22 ` Yinghai Lu
2009-02-17 23:37 ` david
2009-02-18 2:01 ` Yinghai Lu
2009-02-18 2:03 ` david
2009-02-18 2:14 ` Yinghai Lu
2009-02-18 2:32 ` david
2009-02-18 2:28 ` Yinghai Lu
2009-02-18 2:34 ` david
2009-02-18 2:40 ` david
2009-02-18 2:49 ` Yinghai Lu
2009-02-18 3:26 ` david
2009-02-18 3:28 ` Yinghai Lu
2009-02-18 3:35 ` david
2009-02-18 3:45 ` david
2009-02-18 3:47 ` Yinghai Lu
2009-02-18 4:14 ` david
2009-02-18 4:36 ` Yinghai Lu
2009-02-18 5:06 ` Yinghai Lu
2009-02-18 5:10 ` Yinghai Lu
2009-02-18 4:40 ` [PATCH] pci: enable MSI on 8132 Yinghai Lu
2009-02-18 12:21 ` Matthew Wilcox
2009-02-18 12:27 ` david
2009-02-18 18:04 ` Andrew Morton
2009-02-18 18:18 ` david
2009-02-18 18:32 ` Greg KH
2009-02-18 18:38 ` James Bottomley
2009-02-18 18:40 ` david
2009-02-18 19:08 ` Yinghai Lu
2009-02-18 19:14 ` James Bottomley
2009-02-18 19:25 ` Yinghai Lu
2009-02-18 20:12 ` Jeff Garzik
2009-02-18 20:18 ` James Bottomley
2009-02-18 19:15 ` Andrew Morton
2009-02-18 19:29 ` Yinghai Lu
2009-02-18 19:33 ` James Bottomley
2009-02-19 4:21 ` Prakash, Sathya
2009-02-18 19:00 ` Jesse Barnes
2009-02-19 3:39 ` Robert Hancock
2009-02-21 7:50 ` Eric W. Biederman
2009-02-21 8:31 ` Yinghai Lu
2009-02-21 8:58 ` Eric W. Biederman
2009-02-21 10:23 ` Yinghai Lu
2009-02-21 18:59 ` Robert Hancock
2009-02-22 12:08 ` Prakash Punnoor
2009-02-22 12:54 ` Eric W. Biederman
2009-02-22 15:17 ` Prakash Punnoor
2009-02-22 21:45 ` Yinghai Lu
2009-02-22 22:07 ` Yinghai Lu
2009-02-23 6:18 ` Yinghai Lu
2009-02-23 18:21 ` Prakash Punnoor
2009-02-23 18:50 ` Yinghai Lu
2009-02-22 23:42 ` Matthew Wilcox
2009-02-22 3:42 ` Grant Grundler [this message]
2009-02-18 3:12 ` mpt fusion broken sometime since 2.6.24 david
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