diff options
| author | Dave Airlie <airlied@redhat.com> | 2010-09-24 15:37:33 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-09-24 15:37:33 +1000 |
| commit | 4a445f291ac3faa08f56eaeb6e44856b6b72b74c (patch) | |
| tree | b66cc93311dc4c623113a87aa9b40730a21ac18e /arch/powerpc/kernel/time.c | |
| parent | cbc60ca04b342a4e1f2a1086a7277c077f07dbed (diff) | |
| parent | a850ea30374ebed32a0724742601861853fde869 (diff) | |
Merge remote branch 'origin/master' of /home/airlied/kernel//linux-2.6 into drm-core-next
Diffstat (limited to 'arch/powerpc/kernel/time.c')
| -rw-r--r-- | arch/powerpc/kernel/time.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index ce53dfa7130..8533b3b83f5 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -577,20 +577,11 @@ void timer_interrupt(struct pt_regs * regs) * some CPUs will continuue to take decrementer exceptions */ set_dec(DECREMENTER_MAX); -#ifdef CONFIG_PPC32 +#if defined(CONFIG_PPC32) && defined(CONFIG_PMAC) if (atomic_read(&ppc_n_lost_interrupts) != 0) do_IRQ(regs); #endif - now = get_tb_or_rtc(); - if (now < decrementer->next_tb) { - /* not time for this event yet */ - now = decrementer->next_tb - now; - if (now <= DECREMENTER_MAX) - set_dec((int)now); - trace_timer_interrupt_exit(regs); - return; - } old_regs = set_irq_regs(regs); irq_enter(); @@ -606,8 +597,16 @@ void timer_interrupt(struct pt_regs * regs) get_lppaca()->int_dword.fields.decr_int = 0; #endif - if (evt->event_handler) - evt->event_handler(evt); + now = get_tb_or_rtc(); + if (now >= decrementer->next_tb) { + decrementer->next_tb = ~(u64)0; + if (evt->event_handler) + evt->event_handler(evt); + } else { + now = decrementer->next_tb - now; + if (now <= DECREMENTER_MAX) + set_dec((int)now); + } #ifdef CONFIG_PPC_ISERIES if (firmware_has_feature(FW_FEATURE_ISERIES) && hvlpevent_is_pending()) |