lkml.org 
[lkml]   [2014]   [Sep]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v3 14/17] tile: io: implement dummy relaxed accessor macros for writes
    Date
    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 dummy macros for the write accessors to tile, in the
    same vein as the dummy definitions for the relaxed read accessors.

    Acked-by: Chris Metcalf <cmetcalf@tilera.com>
    Signed-off-by: Will Deacon <will.deacon@arm.com>
    ---
    arch/tile/include/asm/io.h | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h
    index 9fe434969fab..d372641054d9 100644
    --- a/arch/tile/include/asm/io.h
    +++ b/arch/tile/include/asm/io.h
    @@ -241,6 +241,10 @@ static inline void writeq(u64 val, unsigned long addr)
    #define readw_relaxed readw
    #define readl_relaxed readl
    #define readq_relaxed readq
    +#define writeb_relaxed writeb
    +#define writew_relaxed writew
    +#define writel_relaxed writel
    +#define writeq_relaxed writeq

    #define ioread8 readb
    #define ioread16 readw
    --
    2.1.0


    \
     
     \ /
      Last update: 2014-09-24 20:01    [W:2.262 / U:0.112 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site