lkml.org 
[lkml]   [2014]   [Mar]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 29/31] arch,xtensa: Convert smp_mb__*
    On Wed, Mar 19, 2014 at 05:11:34PM +0400, Max Filippov wrote:
    > Hi Peter,
    >
    > On Wed, Mar 19, 2014 at 10:47 AM, Peter Zijlstra <peterz@infradead.org> wrote:
    > > Xtensa SMP has ll/sc which is fully serializing, therefore its exising
    >
    > One minor correction: current xtensa ISA doens't have ll/sc, it only
    > has cas (s32c1i instruction), which is fully serializing.

    Oh; my bad in reading your asm. The l32i and s32cli read like a load 32
    and store 32 conditional to me. But sure, cas works too :-)

    I'll ammend the changelog. Thanks!


    \
     
     \ /
      Last update: 2014-03-19 15:21    [W:4.280 / U:2.464 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site