On 11/24/2011 12:07 AM, Anton Blanchard wrote: > Index: linux-build/arch/powerpc/kernel/irq.c > =================================================================== > --- linux-build.orig/arch/powerpc/kernel/irq.c 2011-11-17 > 10:04:16.551137554 +1100 > +++ linux-build/arch/powerpc/kernel/irq.c 2011-11-17 14:23:10.834514143 > +1100 > @@ -164,16 +164,13 @@ notrace void arch_local_irq_restore(unsi > */ > 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();
Where did the #ifndef CONFIG_BOOKE go? BookE doesn't need this; the interrupt will continue asserting until software clears TSR[DIS]. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
