diff options
| author | Visa Hankala <visa@cvs.openbsd.org> | 2018-02-18 14:42:33 +0000 |
|---|---|---|
| committer | Visa Hankala <visa@cvs.openbsd.org> | 2018-02-18 14:42:33 +0000 |
| commit | 59d4eaf9c8738de8016fecd5913756987bfee0bf (patch) | |
| tree | f2b094fc8cc58a411ae2023cbd67c95e6b0cab8a /sys/arch | |
| parent | 572e72a11ed07a6f88cf2c09d04eac065067a205 (diff) | |
Replace a full memory barrier with a write-write barrier. The full
barrier is overkill when forcing parameter visibility before IPIs.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/mips64/mips64/ipifuncs.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/arch/mips64/mips64/ipifuncs.c b/sys/arch/mips64/mips64/ipifuncs.c index 92aba5f441b..5e1a6c8d094 100644 --- a/sys/arch/mips64/mips64/ipifuncs.c +++ b/sys/arch/mips64/mips64/ipifuncs.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ipifuncs.c,v 1.17 2017/05/28 17:12:48 visa Exp $ */ +/* $OpenBSD: ipifuncs.c,v 1.18 2018/02/18 14:42:32 visa Exp $ */ /* $NetBSD: ipifuncs.c,v 1.40 2008/04/28 20:23:10 martin Exp $ */ /*- @@ -216,7 +216,9 @@ smp_rendezvous_cpus(unsigned long map, smp_rv_func_arg = arg; smp_rv_waiters[0] = 0; smp_rv_waiters[1] = 0; - mips_sync(); + + /* Ensure the parameters are visible to other CPUs. */ + membar_producer(); /* signal other processors, which will enter the IPI with interrupts off */ mips64_multicast_ipi(map, MIPS64_IPI_RENDEZVOUS); |