Subject: Re: mfdcr/mtdcr
To: Jachym Holecek <freza@dspfpga.com>
From: Jason Thorpe <thorpej@shagadelic.org>
List: port-powerpc
Date: 05/09/2006 21:34:30
On May 9, 2006, at 6:25 PM, Jachym Holecek wrote:
> Hello,
>
> I'd like to move mfdcr()/mtdcr() macro definitions into a separate
> file.
> Motivation:
>
> * Currently, they're defined multiple times in include/ibm4xx/
> dcr40*.h
>
> * For evbppc/virtex, I'd like to be able to access DCR without
> also pulling in irrelevant address definitions (DCR address
> layout is completely up to the HDL designer)
>
> The diff below (relative to arch/powerpc/include/ibm4xx) creates dcr.h
> and makes dcr40*.h use it. Other option would be to move the macros to
> ibm4xx/cpu.h (the m{f,t}dcr instructions are 4xx specific).
>
> Does it sound OK? If so, anyone wants to commit? ;-)
Sounds like a separate dcr.h isn't necessary -- is there some generic
ibm4xx-specific header to put it in? Maybe powerpc/include/ibm4xx/
cpu.h ?
-- thorpej