diff options
| author | Clark Williams <williams@redhat.com> | 2012-01-12 22:11:05 -0600 |
|---|---|---|
| committer | Clark Williams <williams@redhat.com> | 2012-01-12 22:11:05 -0600 |
| commit | 937f5e333d0b05638126f651135d3b8fd6b43665 (patch) | |
| tree | 8c85f620680aca1496b8914288bb38ce11c320fc /arch/powerpc/kernel/irq.c | |
| parent | d76fe430665fac3f44ee88958713ecc524fd778d (diff) | |
| parent | b8ed9e5b8c34dc9fb1882669e45b21e3d0194881 (diff) | |
Merge commit 'v3.2.1' into rt-3.2.1-rt9v3.2.1-rt9
Diffstat (limited to 'arch/powerpc/kernel/irq.c')
| -rw-r--r-- | arch/powerpc/kernel/irq.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 680ee60985c5..e0ee53177ea5 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -164,16 +164,13 @@ notrace void arch_local_irq_restore(unsigned long en) */ local_paca->hard_enabled = en; -#ifndef CONFIG_BOOKE - /* On server, re-trigger the decrementer if it went negative since - * some processors only trigger on edge transitions of the sign bit. - * - * BookE has a level sensitive decrementer (latches in TSR) so we - * don't need that + /* + * Trigger the decrementer if we have a pending event. Some processors + * only trigger on edge transitions of the sign bit. We might also + * have disabled interrupts long enough that the decrementer wrapped + * to positive. */ - if ((int)mfspr(SPRN_DEC) < 0) - mtspr(SPRN_DEC, 1); -#endif /* CONFIG_BOOKE */ + decrementer_check_overflow(); /* * Force the delivery of pending soft-disabled interrupts on PS3. |