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Message-ID: <20071003015242.GC12049@parisc-linux.org> Date: Tue, 2 Oct 2007 19:52:42 -0600 From: Matthew Wilcox <matthew@....cx> To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com> Cc: LKML <linux-kernel@...r.kernel.org>, andi@...stfloor.org, "linux-mm@...ck.org" <linux-mm@...ck.org>, "tony.luck@...el.com" <tony.luck@...el.com>, Andrew Morton <akpm@...ux-foundation.org>, pbadari@...ibm.com, "linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org> Subject: Re: [Question] How to represent SYSTEM_RAM in kerenel/resouce.c 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 from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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