[RFC] [PATCH] PowerPC: Add 64-bit phys addr support to 32-bit pci.

[Kumar Gala]

On Sep 18, 2007, at 10:01 AM, Valentine Barshak wrote:

> 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 at 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:

I can guess as to why, but its useful for the commit messages to be  
more descriptive so when some goes back a year from now they know why  
someone added this patch.

- k