From: Matthew Wilcox <matthew@wil.cx>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
andi@firstfloor.org, "linux-mm@kvack.org" <linux-mm@kvack.org>,
"tony.luck@intel.com" <tony.luck@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
pbadari@us.ibm.com,
"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>
Subject: Re: [Question] How to represent SYSTEM_RAM in kerenel/resouce.c
Date: Tue, 2 Oct 2007 19:52:42 -0600 [thread overview]
Message-ID: <20071003015242.GC12049@parisc-linux.org> (raw)
In-Reply-To: <20071003103136.addbe839.kamezawa.hiroyu@jp.fujitsu.com>
On Wed, Oct 03, 2007 at 10:31:36AM +0900, KAMEZAWA Hiroyuki wrote:
> i386 and x86_64 registers System RAM as IORESOUCE_MEM | IORESOUCE_BUSY.
> ia64 registers System RAM as IORESOURCE_MEM.
>
> Which is better ?
Should probably be BUSY. Non-BUSY regions can have io resources
requested underneath them, but you wouldn't want a PCI device to be
assigned an address which overlaps with physical memory.
--
Intel are signing my paycheques ... these opinions are still mine
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours. We can't possibly take such
a retrograde step."
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2007-10-03 1:52 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-03 1:31 [Question] How to represent SYSTEM_RAM in kerenel/resouce.c KAMEZAWA Hiroyuki
2007-10-03 1:52 ` Matthew Wilcox [this message]
2007-10-03 4:57 ` KAMEZAWA Hiroyuki
2007-11-01 9:21 ` [PATCH] Add IORESOUCE_BUSY flag for System RAM (Re: [Question] How to represent SYSTEM_RAM in kerenel/resouce.c) Yasunori Goto
2007-11-01 16:28 ` Badari Pulavarty
2007-11-06 2:23 ` [PATCH] Add IORESOUCE_BUSY flag for System RAM take 2 Yasunori Goto
2007-10-03 16:37 ` [Question] How to represent SYSTEM_RAM in kerenel/resouce.c Dave Hansen
2007-10-03 16:43 ` Matthew Wilcox
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20071003015242.GC12049@parisc-linux.org \
--to=matthew@wil.cx \
--cc=akpm@linux-foundation.org \
--cc=andi@firstfloor.org \
--cc=kamezawa.hiroyu@jp.fujitsu.com \
--cc=linux-ia64@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=pbadari@us.ibm.com \
--cc=tony.luck@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).