* Luis R. Rodriguez <mcgrof@xxxxxxxx> wrote: > On Wed, Jul 08, 2015 at 06:54:11PM -0700, Luis R. Rodriguez wrote: > > From: "Luis R. Rodriguez" <mcgrof@xxxxxxxx> > > > > Ingo, > > > > Boris is on vacation, he picked up these patches on his bp#tip-mm tree [0] > > and they have baked there for a while now. That tree receives 0-day > > bot testing, but other than that its not clear what other tests were > > run on these patches. Boris modified the commit logs a bit, and made one > > optimizaiton to bail early on an PCI ioremap call when it should. These > > patches have no modifications from what is on Boris' tree and tip-mm branch. > > > > The 0 day build bot did find issues on Boris' tree but those are related > > to ioremap_uc() (already upstream) and its first use on atyfb (not > > upstream) -- I will be addressing a fix for that ioremap_uc() issue through > > another patch series prior to posting the final set for atyfb which makes > > use of ioremap_uc(). > > > > No issues have been found with this series. Benh did note some possible issues > > with expectations with what is done for write-combining for PowerPC [1] but > > the issue is a rather general long standing issue with semantics of ioremap -- > > in the case for ioremap_wc() on PowerPC benh notes that writel() will never > > write-combine as it uses too heavy barriers. Benh notes that although > > writel_relaxed() today is identical to writel() this can be changed. There are > > other general semantics issues with ioremap() variant calls -- we seem to have > > all gotten together to discuss all these issues on a thread where Dan Williams > > is proposing to "unify ioremap prototypes and macro aliases" [1], folks > > intersted on these issues or semantic concerns can drop in and chime there. > > > > Let me know if these are OK or if there are any questions. > > > > [0] http://lkml.kernel.org/r/20150625204703.GC4898@xxxxxxx > > [1] http://lkml.kernel.org/r/20150707095012.GQ7021@xxxxxxxxxxxxx > > Ingo, > > Just a friendly reminder. Let me know if there are any issues or questions. It would be nice to get an Acked-by from Bjorn for the PCI API bits. Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
