diff options
Diffstat (limited to 'arch/powerpc/kernel/time.c')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 7cedef8f5f70..2c8564d54e4d 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -711,30 +711,15 @@ void wakeup_decrementer(void) void __init smp_space_timers(unsigned int max_cpus) { int i; - unsigned long half = tb_ticks_per_jiffy / 2; - unsigned long offset = tb_ticks_per_jiffy / max_cpus; u64 previous_tb = per_cpu(last_jiffy, boot_cpuid); /* make sure tb > per_cpu(last_jiffy, cpu) for all cpus always */ previous_tb -= tb_ticks_per_jiffy; - /* - * The stolen time calculation for POWER5 shared-processor LPAR - * systems works better if the two threads' timebase interrupts - * are staggered by half a jiffy with respect to each other. - */ + for_each_possible_cpu(i) { if (i == boot_cpuid) continue; - if (i == (boot_cpuid ^ 1)) - per_cpu(last_jiffy, i) = - per_cpu(last_jiffy, boot_cpuid) - half; - else if (i & 1) - per_cpu(last_jiffy, i) = - per_cpu(last_jiffy, i ^ 1) + half; - else { - previous_tb += offset; - per_cpu(last_jiffy, i) = previous_tb; - } + per_cpu(last_jiffy, i) = previous_tb; } } #endif |