diff options
| -rw-r--r-- | arch/ppc/syslib/open_pic.c | 26 | ||||
| -rw-r--r-- | drivers/macintosh/via-pmu.c | 10 | ||||
| -rw-r--r-- | include/asm-ppc/open_pic.h | 6 |
3 files changed, 35 insertions, 7 deletions
diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c index b45d8268bf9..ad39b86ca92 100644 --- a/arch/ppc/syslib/open_pic.c +++ b/arch/ppc/syslib/open_pic.c @@ -370,8 +370,9 @@ void __init openpic_init(int offset) /* Initialize IPI interrupts */ if ( ppc_md.progress ) ppc_md.progress("openpic: ipi",0x3bb); for (i = 0; i < OPENPIC_NUM_IPI; i++) { - /* Disabled, Priority 10..13 */ - openpic_initipi(i, 10+i, OPENPIC_VEC_IPI+i+offset); + /* Disabled, increased priorities 10..13 */ + openpic_initipi(i, OPENPIC_PRIORITY_IPI_BASE+i, + OPENPIC_VEC_IPI+i+offset); /* IPIs are per-CPU */ irq_desc[OPENPIC_VEC_IPI+i+offset].status |= IRQ_PER_CPU; irq_desc[OPENPIC_VEC_IPI+i+offset].handler = &open_pic_ipi; @@ -399,8 +400,9 @@ void __init openpic_init(int offset) if (sense & IRQ_SENSE_MASK) irq_desc[i+offset].status = IRQ_LEVEL; - /* Enabled, Priority 8 */ - openpic_initirq(i, 8, i+offset, (sense & IRQ_POLARITY_MASK), + /* Enabled, Default priority */ + openpic_initirq(i, OPENPIC_PRIORITY_DEFAULT, i+offset, + (sense & IRQ_POLARITY_MASK), (sense & IRQ_SENSE_MASK)); /* Processor 0 */ openpic_mapirq(i, CPU_MASK_CPU0, CPU_MASK_NONE); @@ -656,6 +658,18 @@ static void __init openpic_maptimer(u_int timer, cpumask_t cpumask) } /* + * Change the priority of an interrupt + */ +void __init +openpic_set_irq_priority(u_int irq, u_int pri) +{ + check_arg_irq(irq); + openpic_safe_writefield(&ISR[irq - open_pic_irq_offset]->Vector_Priority, + OPENPIC_PRIORITY_MASK, + pri << OPENPIC_PRIORITY_SHIFT); +} + +/* * Initalize the interrupt source which will generate an NMI. * This raises the interrupt's priority from 8 to 9. * @@ -665,9 +679,7 @@ void __init openpic_init_nmi_irq(u_int irq) { check_arg_irq(irq); - openpic_safe_writefield(&ISR[irq - open_pic_irq_offset]->Vector_Priority, - OPENPIC_PRIORITY_MASK, - 9 << OPENPIC_PRIORITY_SHIFT); + openpic_set_irq_priority(irq, OPENPIC_PRIORITY_NMI); } /* diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c index b941ee22099..5375df03c6f 100644 --- a/drivers/macintosh/via-pmu.c +++ b/drivers/macintosh/via-pmu.c @@ -63,6 +63,10 @@ #include <asm/backlight.h> #endif +#ifdef CONFIG_PPC32 +#include <asm/open_pic.h> +#endif + /* Some compile options */ #undef SUSPEND_USES_PMU #define DEBUG_SLEEP @@ -407,6 +411,12 @@ static int __init via_pmu_start(void) batt_req.complete = 1; #endif +#ifdef CONFIG_PPC32 + if (pmu_kind == PMU_KEYLARGO_BASED) + openpic_set_irq_priority(vias->intrs[0].line, + OPENPIC_PRIORITY_DEFAULT + 1); +#endif + if (request_irq(vias->intrs[0].line, via_pmu_interrupt, 0, "VIA-PMU", (void *)0)) { printk(KERN_ERR "VIA-PMU: can't get irq %d\n", diff --git a/include/asm-ppc/open_pic.h b/include/asm-ppc/open_pic.h index dbe85331974..7848aa610c0 100644 --- a/include/asm-ppc/open_pic.h +++ b/include/asm-ppc/open_pic.h @@ -25,6 +25,11 @@ #define OPENPIC_VEC_IPI 118 /* and up */ #define OPENPIC_VEC_SPURIOUS 255 +/* Priorities */ +#define OPENPIC_PRIORITY_IPI_BASE 10 +#define OPENPIC_PRIORITY_DEFAULT 4 +#define OPENPIC_PRIORITY_NMI 9 + /* OpenPIC IRQ controller structure */ extern struct hw_interrupt_type open_pic; @@ -42,6 +47,7 @@ extern int epic_serial_mode; extern void openpic_set_sources(int first_irq, int num_irqs, void __iomem *isr); extern void openpic_init(int linux_irq_offset); extern void openpic_init_nmi_irq(u_int irq); +extern void openpic_set_irq_priority(u_int irq, u_int pri); extern void openpic_hookup_cascade(u_int irq, char *name, int (*cascade_fn)(struct pt_regs *)); extern u_int openpic_irq(void); |