diff options
| author | Takashi Iwai <tiwai@suse.de> | 2009-11-14 14:38:28 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-11-14 14:38:28 +0100 |
| commit | 0c3c35e148dbc03106038dd25816fb9f3a084d86 (patch) | |
| tree | 8b8cc6a027353a0f242f61362b35b0942da61b83 /arch/mips/mti-malta/malta-amon.c | |
| parent | 50d40f187f9182ee8caa1b83f80a0e11e2226baa (diff) | |
| parent | 5e08fe570c2dbabb5015c37049eb9a451e55c890 (diff) | |
| download | talos-op-linux-0c3c35e148dbc03106038dd25816fb9f3a084d86.tar.gz talos-op-linux-0c3c35e148dbc03106038dd25816fb9f3a084d86.zip | |
Merge branch 'fix/misc' into topic/misc
Diffstat (limited to 'arch/mips/mti-malta/malta-amon.c')
| -rw-r--r-- | arch/mips/mti-malta/malta-amon.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/mips/mti-malta/malta-amon.c b/arch/mips/mti-malta/malta-amon.c index df9e526312a2..469d9b0cee6d 100644 --- a/arch/mips/mti-malta/malta-amon.c +++ b/arch/mips/mti-malta/malta-amon.c @@ -70,11 +70,12 @@ void amon_cpu_start(int cpu, launch->sp = sp; launch->a0 = a0; - /* Make sure target sees parameters before the go bit */ - smp_mb(); - + smp_wmb(); /* Target must see parameters before go */ launch->flags |= LAUNCH_FGO; + smp_wmb(); /* Target must see go before we poll */ + while ((launch->flags & LAUNCH_FGONE) == 0) ; + smp_rmb(); /* Target will be updating flags soon */ pr_debug("launch: cpu%d gone!\n", cpu); } |
