Re: [PATCH v2 06/22] ARM: implement ioremap_nopost() interface

2017-04-05 Thread Lorenzo Pieralisi
On Fri, Mar 31, 2017 at 12:08:13PM +0100, Lorenzo Pieralisi wrote: > Hi Russell, > > On Mon, Mar 27, 2017 at 10:49:34AM +0100, Lorenzo Pieralisi wrote: > > The PCI bus specifications (rev 3.0, 3.2.5 "Transaction Ordering > > and Posting") define rules for PCI configuration space transactions > > o

Re: [PATCH v2 06/22] ARM: implement ioremap_nopost() interface

2017-03-31 Thread Lorenzo Pieralisi
Hi Russell, On Mon, Mar 27, 2017 at 10:49:34AM +0100, Lorenzo Pieralisi wrote: > The PCI bus specifications (rev 3.0, 3.2.5 "Transaction Ordering > and Posting") define rules for PCI configuration space transactions > ordering and posting, that state that configuration writes have to > be non-post

[PATCH v2 06/22] ARM: implement ioremap_nopost() interface

2017-03-27 Thread Lorenzo Pieralisi
The PCI bus specifications (rev 3.0, 3.2.5 "Transaction Ordering and Posting") define rules for PCI configuration space transactions ordering and posting, that state that configuration writes have to be non-posted transactions. Current ioremap interface on ARM provides mapping functions that provi