On Thu, Sep 25, 2014 at 11:43:41AM +0100, Arnd Bergmann wrote:
> On Thursday 25 September 2014 11:38:46 Will Deacon wrote:
> > On Thu, Sep 25, 2014 at 11:32:00AM +0100, Arnd Bergmann wrote:
> > > On Wednesday 24 September 2014 18:17:20 Will Deacon wrote:
> > > > {read,write}{b,w,l,q}_relaxed are implemented by some architectures in
> > > > order to permit memory-mapped I/O accesses with weaker barrier semantics
> > > > than the non-relaxed variants.
> > > >
> > > > This patch adds wrappers to asm-generic so that drivers can rely on the
> > > > relaxed accessors being available, even if they don't always provide
> > > > weaker ordering guarantees. Since some architectures both include
> > > > asm-generic/io.h and define some relaxed accessors, the definitions here
> > > > are conditional for the time being.
> > > >
> > > > Cc: Arnd Bergmann <arnd@xxxxxxxx>
> > > > Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
> > > > ---
> > > > include/asm-generic/io.h | 26 ++++++++++++++++++++++++++
> > > > 1 file changed, 26 insertions(+)
> > > >
> > >
> > > Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
> >
> > Thanks, Arnd. Do you have other patches queued for asm-generic, or shall I
> > take this patch (on its own) via the arm64 tree?
>
> I don't have other patches queued up yet, but Thierry has another patch
> for asm-generic/io.h that I want to merge, so this time I'd prefer to
> take it through my tree in case there are conflicts.
Ok, suits me. I'll drop this from my series when it hits mainline.
Will
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