diff options
Diffstat (limited to 'arch/ppc/kernel/pmac_pic.c')
| -rw-r--r-- | arch/ppc/kernel/pmac_pic.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/arch/ppc/kernel/pmac_pic.c b/arch/ppc/kernel/pmac_pic.c index d13875c9f..b0276ca2c 100644 --- a/arch/ppc/kernel/pmac_pic.c +++ b/arch/ppc/kernel/pmac_pic.c @@ -39,6 +39,17 @@ extern int pmac_pcibios_read_config_word(unsigned char bus, unsigned char dev_fn extern int pmac_pcibios_write_config_word(unsigned char bus, unsigned char dev_fn, unsigned char offset, unsigned short val); +/* + * Mark an irq as "lost". This is only used on the pmac + * since it can lose interrupts (see pmac_set_irq_mask). + * -- Cort + */ +void __pmac __no_use_set_lost(unsigned long irq_nr) +{ + if (!test_and_set_bit(irq_nr, ppc_lost_interrupts)) + atomic_inc(&ppc_n_lost_interrupts); +} + static void pmac_openpic_mask_irq(unsigned int irq_nr) { openpic_disable_irq(irq_nr); @@ -105,10 +116,8 @@ static void __pmac pmac_set_irq_mask(unsigned int irq_nr) */ if ((bit & ppc_cached_irq_mask[i]) && (ld_le32(&pmac_irq_hw[i]->level) & bit) - && !(ld_le32(&pmac_irq_hw[i]->flag) & bit)) { - if (!test_and_set_bit(irq_nr, ppc_lost_interrupts)) - atomic_inc(&ppc_n_lost_interrupts); - } + && !(ld_le32(&pmac_irq_hw[i]->flag) & bit)) + __set_lost((ulong)irq_nr); } static void __pmac pmac_mask_irq(unsigned int irq_nr) @@ -174,6 +183,8 @@ pmac_get_irq(struct pt_regs *regs) unsigned long bits = 0; #ifdef __SMP__ + void pmac_smp_message_recv(void); + /* IPI's are a hack on the powersurge -- Cort */ if ( smp_processor_id() != 0 ) { @@ -182,12 +193,12 @@ pmac_get_irq(struct pt_regs *regs) if (xmon_2nd) xmon(regs); #endif - smp_message_recv(); + pmac_smp_message_recv(); return -2; /* ignore, already handled */ } #endif /* __SMP__ */ - /* Yeah, I know, this could be a separate do_IRQ function */ + /* Yeah, I know, this could be a separate get_irq function */ if (has_openpic) { irq = openpic_irq(smp_processor_id()); @@ -376,6 +387,7 @@ pmac_pic_init(void) irqctrler = NULL; } + int_control.int_set_lost = __no_use_set_lost; /* * G3 powermacs and 1999 G3 PowerBooks have 64 interrupts, * 1998 G3 Series PowerBooks have 128, |