lkml.org 
[lkml]   [2014]   [Sep]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v3 01/17] asm-generic: io: implement relaxed accessor macros as conditional wrappers
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@arndb.de>
> > Signed-off-by: Will Deacon <will.deacon@arm.com>
> > ---
> > include/asm-generic/io.h | 26 ++++++++++++++++++++++++++
> > 1 file changed, 26 insertions(+)
> >
>
> Acked-by: Arnd Bergmann <arnd@arndb.de>

Thanks, Arnd. Do you have other patches queued for asm-generic, or shall I
take this patch (on its own) via the arm64 tree?

Will


\
 
 \ /
  Last update: 2014-09-25 13:01    [W:0.052 / U:3.140 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site