From: Valentine Barshak <vbarshak@ru.mvista.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: [RFC] [PATCH] PowerPC: Add 64-bit phys addr support to 32-bit pci.
Date: Tue, 18 Sep 2007 19:01:29 +0400 [thread overview]
Message-ID: <46EFE849.7080508@ru.mvista.com> (raw)
In-Reply-To: <2E339F78-F42B-4FCE-A97E-FFE9AE4C44F1@kernel.crashing.org>
Kumar Gala wrote:
>
> On Sep 18, 2007, at 9:44 AM, Valentine Barshak wrote:
>
>> Add 64-bit physical address support to PCI.
>
> Can you expand on your commit message. for example why do this? is it
> address a bug fix, etc..
>
>>
>> Signed-off-by: Valentine Barshak <vbarshak@ru.mvista.com>
>> ---
>> arch/powerpc/kernel/iomap.c | 4 +--
>> arch/powerpc/kernel/pci_32.c | 56
>> +++++++++++++++++++++++++++++--------------
>> 2 files changed, 41 insertions(+), 19 deletions(-)
>
> - k
>
Currently 32-bit pci code doesn't support 64-bit physical addresses.
We have to add 64-bit addr support in order to bring-up pci on PowerPC
440. Actually, this refers to the conversation started here:
http://ozlabs.org/pipermail/linuxppc-dev/2007-September/042267.html
Thanks,
Valentine.
next prev parent reply other threads:[~2007-09-18 15:02 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-18 14:44 [RFC] [PATCH] PowerPC: Add 64-bit phys addr support to 32-bit pci Valentine Barshak
2007-09-18 14:52 ` Kumar Gala
2007-09-18 15:01 ` Valentine Barshak [this message]
2007-09-18 15:13 ` Kumar Gala
2007-09-18 16:07 ` Valentine Barshak
2007-09-18 18:18 ` Vitaly Bordug
2007-09-18 21:38 ` Benjamin Herrenschmidt
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