On Monday 07 April 2014 19:13:28 Benjamin Herrenschmidt wrote:
On Mon, 2014-04-07 at 09:35 +0100, Liviu Dudau wrote:
Thanks for the summary, is really useful as I was recently looking into code in that area. One thing I was trying to understand is why ppc needs _IO_BASE at all rather than using the generic PCI_IOBASE?
Perhaps because our code predates it ? I haven't looked much into the semantics of PCI_IOBASE yet...
Yes, I'm pretty sure that's all there is to it. PCI_IOBASE just happened to be an identifier we picked for asm-generic, but the use on PowerPC is much older than the generic file.
Arnd