From: "H. Peter Anvin" <hpa@zytor.com>
To: David Miller <davem@davemloft.net>
Cc: benh@kernel.crashing.org, torvalds@linux-foundation.org,
rdreier@cisco.com, Geert.Uytterhoeven@sonycom.com,
linux-kernel@vger.kernel.org, mingo@elte.hu,
yhlu.kernel@gmail.com, akpm@linux-foundation.org
Subject: Re: [PATCH] Fix broken debug output reserve_region_with_split()
Date: Thu, 16 Oct 2008 23:51:53 -0700 [thread overview]
Message-ID: <48F83609.4090407@zytor.com> (raw)
In-Reply-To: <20081016.234747.193703936.davem@davemloft.net>
David Miller wrote:
>>>
>> IMNSHO I think you can default to 8 digits for I/O for PCI, since at least last I looked there was no 64-bit address space possible for I/O.
>
> Resources are representing different things on different platforms.
>
> On sparc64 it's actually the full 64-bit physical I/O address on the
> system bus being stored in there. So even IORESOURCE_IO objects have
> 64-bits of relevancy.
>
And then it should be printed as such on that platform.
> Like I said, printing out the entire thing has helped me find real
> bugs, so printing the whole thing is not without merit.
No argument there. I was referring only to platforms where the resource
contains a PCI I/O address, which is 32 bits long unless limited by
additional constraints (like x86's 16-bit limit.)
-hpa
next prev parent reply other threads:[~2008-10-17 6:55 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-14 0:53 [PATCH] Fix broken debug output reserve_region_with_split() Benjamin Herrenschmidt
2008-10-14 1:04 ` H. Peter Anvin
2008-10-14 1:14 ` Yinghai Lu
2008-10-14 1:16 ` H. Peter Anvin
2008-10-14 1:34 ` David Miller
2008-10-14 1:41 ` Benjamin Herrenschmidt
2008-10-14 1:41 ` Benjamin Herrenschmidt
2008-10-14 1:45 ` David Miller
2008-10-14 2:15 ` Benjamin Herrenschmidt
2008-10-14 2:54 ` H. Peter Anvin
2008-10-14 3:47 ` Benjamin Herrenschmidt
2008-10-14 5:38 ` David Miller
2008-10-16 8:30 ` Geert Uytterhoeven
2008-10-16 8:38 ` David Miller
2008-10-16 9:02 ` H. Peter Anvin
2008-10-17 3:02 ` Benjamin Herrenschmidt
2008-10-17 3:06 ` Benjamin Herrenschmidt
2008-10-17 3:13 ` Roland Dreier
2008-10-17 3:31 ` Benjamin Herrenschmidt
2008-10-17 3:49 ` Linus Torvalds
2008-10-17 4:04 ` David Miller
2008-10-17 4:18 ` Linus Torvalds
2008-10-17 5:00 ` Benjamin Herrenschmidt
2008-10-17 5:24 ` David Miller
2008-10-17 5:12 ` Benjamin Herrenschmidt
2008-10-17 5:21 ` Benjamin Herrenschmidt
2008-10-17 10:13 ` Olivier Galibert
2008-10-17 15:54 ` Linus Torvalds
2008-10-17 20:30 ` H. Peter Anvin
2008-10-17 20:54 ` Linus Torvalds
2008-10-17 21:03 ` Benjamin Herrenschmidt
2008-10-17 21:11 ` Linus Torvalds
2008-10-17 21:45 ` Benjamin Herrenschmidt
2008-10-20 3:37 ` Benjamin Herrenschmidt
2008-10-17 5:21 ` David Miller
2008-10-17 6:36 ` Benjamin Herrenschmidt
2008-10-17 6:39 ` H. Peter Anvin
2008-10-17 6:47 ` David Miller
2008-10-17 6:51 ` H. Peter Anvin [this message]
2008-10-17 15:51 ` Linus Torvalds
2008-10-17 20:06 ` David Miller
2008-10-17 4:05 ` Benjamin Herrenschmidt
2008-10-17 6:36 ` H. Peter Anvin
2008-10-17 3:39 ` Yinghai Lu
2008-10-17 3:46 ` Benjamin Herrenschmidt
2008-10-17 6:38 ` H. Peter Anvin
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