From d77cb21b578a5428482bc0fd187f7c0518a0b32a Mon Sep 17 00:00:00 2001 From: Tiejun Chen Date: Thu, 15 Jul 2010 20:17:11 +0000 Subject: [PATCH] powerpc/smp: remove the incorrect decrementer initial codes for AP We already defined start_cpu_decrementer() to invoke decrementer for AP as the following path: start_secondary() -> secondary_cpu_time_init() -> start_cpu_decrementer() So remove these incorrect codes introduced from commit: e7f75ad0 powerpc/47x: Base ppc476 support And actually we really should not enable decrementer before calling set_dec(). Signed-off-by: Tiejun Chen Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/smp.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 8764daa..a61b3dd 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -499,14 +499,6 @@ int __devinit start_secondary(void *unused) current->active_mm = &init_mm; smp_store_cpu_info(cpu); - -#if defined(CONFIG_BOOKE) || defined(CONFIG_40x) - /* Clear any pending timer interrupts */ - mtspr(SPRN_TSR, TSR_ENW | TSR_WIS | TSR_DIS | TSR_FIS); - - /* Enable decrementer interrupt */ - mtspr(SPRN_TCR, TCR_DIE); -#endif set_dec(tb_ticks_per_jiffy); preempt_disable(); cpu_callin_map[cpu] = 1; -- 2.7.4