From: Jerry Van Baren <gerald.vanbaren@ge.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] pci: Treat all PCI bus addresses as 64-bit
Date: Tue, 21 Oct 2008 10:55:25 -0400 [thread overview]
Message-ID: <48FDED5D.3010403@ge.com> (raw)
In-Reply-To: <20081021144616.A82A7835694E@gemini.denx.de>
Wolfgang Denk wrote:
> Dear Kumar Gala,
>
> In message <1224598531-2698-1-git-send-email-galak@kernel.crashing.org> you wrote:
>> PCI bus is inherently 64-bit. We should treat all PCI related bus
>> addresses as 64-bit quanities. This allows us to have the ability
>> to support devices or memory on the PCI bus above the 32-bit boundary.
>
> I don't think this is a good idea. There are pure 32 bit systems out
> there which will never use more than 32 bit for the PCI resources, so
> why load them with the additional memory size and execution time?
>
> Should we not enable this only for such systems that actually need it?
>
> Best regards,
>
> Wolfgang Denk
Why would we not use phys_addr_t and phys_size_t for the PCI addresses?
Best regards,
gvb
next prev parent reply other threads:[~2008-10-21 14:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-21 14:15 [U-Boot] [PATCH] pci: Treat all PCI bus addresses as 64-bit Kumar Gala
2008-10-21 14:46 ` Wolfgang Denk
2008-10-21 14:55 ` Jerry Van Baren [this message]
2008-10-21 14:59 ` Kumar Gala
2008-10-21 15:03 ` Wolfgang Denk
2008-10-21 15:00 ` Kumar Gala
2008-10-21 15:06 ` Wolfgang Denk
2008-10-21 15:29 ` Kumar Gala
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