On Wed, Jan 14, 2015 at 07:42:53PM +0000, Mitchel Humpherys wrote: > On Tue, Dec 16 2014 at 01:45:27 AM, Will Deacon <will.dea...@arm.com> wrote: > > On Mon, Dec 15, 2014 at 11:47:23PM +0000, Mitchel Humpherys wrote: > >> From: Matt Wagantall <ma...@codeaurora.org> > >> > >> It is sometimes necessary to poll a memory-mapped register until its value > >> satisfies some condition. Introduce a family of convenience macros that do > >> this. Tight-looping, sleeping, and timing out can all be accomplished using > >> these macros. > >> > >> Cc: Thierry Reding <thierry.red...@gmail.com> > >> Cc: Will Deacon <will.dea...@arm.com> > >> Cc: Arnd Bergmann <a...@arndb.de> > >> Cc: Andrew Morton <a...@linux-foundation.org> > >> Cc: Robert Elliott <elli...@hp.com> > >> Signed-off-by: Matt Wagantall <ma...@codeaurora.org> > >> Signed-off-by: Mitchel Humpherys <mitch...@codeaurora.org> > >> --- > >> v9..10: > >> - Actually added the comments mentioned in v8..v9 (doh!) > >> > >> v8..v9: > >> - Added note in comments about max sleep time (Rob Elliott) > >> > >> v7..v8: > >> - sorted helper macros by size (b, w, l, q) > >> - removed some of the more esoteric (or flat-out bogus) helper macros > >> > >> This patch was originally part of a series [1] for adding support for IOMMU > >> address translations through an ARM SMMU hardware register. The other > >> patch in the series (the one that actually uses these macros and implements > >> said hardware address translations) was Ack'd by the driver maintainer > >> there (Will Deacon) so I've pulled this patch out to avoid resending an > >> already Ack'd patch over and over again. > >> > >> In short, please see [1] for previous discussion and the first user of > >> these macros. > >> > >> Will also acked this patch in [2]. I didn't retain his Ack here because I > >> added to the macro comments. > > > > You can keep the ack, it still looks good to me and I'm not really fussed > > about the comments. > > > > Will > > This hasn't gotten any further comments. Would someone be willing to > take it?
If you get an Ack from any of Arnd/Joerg/akpm then I'm happy to take it via the arm-smmu pull (along with the patch making use of it). Joerg, would you be ok with that? Will > Joerg, maybe you could take this through the IOMMU tree since the first > user is an IOMMU driver? Currently we can't move [1] forward because of > this dependency... > > [1] http://thread.gmane.org/gmane.linux.kernel.iommu/7837 > > > -Mitch > > -- > Qualcomm Innovation Center, Inc. > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
