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| author | Steven Miao <realmz6@gmail.com> | 2013-07-09 11:39:53 +0400 |
|---|---|---|
| committer | Steven Miao <realmz6@gmail.com> | 2013-07-09 11:50:38 +0400 |
| commit | 150382a53d11256e5666c86525c8bf8d23684532 (patch) | |
| tree | 5a0e5a70ba6006456c4d28ec53e6bf35c353e90c /arch/blackfin/mach-bf561 | |
| parent | b700a3f304cfc8589f3a5b6012bdd3689b778033 (diff) | |
| download | linux-150382a53d11256e5666c86525c8bf8d23684532.tar.xz | |
smp: refine bf561 smpboot code
release boot lock earlier to let coreb do setup and calibrate
set coreb online later after initialization ready
add BFIN_IPI_NONE IPI type
drop unnecesarry smp_mb() and using atomic type
Signed-off-by: Steven Miao <realmz6@gmail.com>
Diffstat (limited to 'arch/blackfin/mach-bf561')
| -rw-r--r-- | arch/blackfin/mach-bf561/smp.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c index ab1c617b9cfc..c77a23bc9de3 100644 --- a/arch/blackfin/mach-bf561/smp.c +++ b/arch/blackfin/mach-bf561/smp.c @@ -69,7 +69,6 @@ void __cpuinit platform_secondary_init(unsigned int cpu) SSYNC(); /* We are done with local CPU inits, unblock the boot CPU. */ - set_cpu_online(cpu, true); spin_lock(&boot_lock); spin_unlock(&boot_lock); } @@ -91,7 +90,9 @@ int __cpuinit platform_boot_secondary(unsigned int cpu, struct task_struct *idle SSYNC(); } - timeout = jiffies + 1 * HZ; + timeout = jiffies + HZ; + /* release the lock and let coreb run */ + spin_unlock(&boot_lock); while (time_before(jiffies, timeout)) { if (cpu_online(cpu)) break; @@ -100,8 +101,6 @@ int __cpuinit platform_boot_secondary(unsigned int cpu, struct task_struct *idle } if (cpu_online(cpu)) { - /* release the lock and let coreb run */ - spin_unlock(&boot_lock); return 0; } else panic("CPU%u: processor failed to boot\n", cpu); |