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Diffstat (limited to 'arch/ppc/syslib/open_pic.c')
-rw-r--r--arch/ppc/syslib/open_pic.c26
1 files changed, 19 insertions, 7 deletions
diff --git a/arch/ppc/syslib/open_pic.c b/arch/ppc/syslib/open_pic.c
index b45d8268bf93..ad39b86ca92c 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)
370 /* Initialize IPI interrupts */ 370 /* Initialize IPI interrupts */
371 if ( ppc_md.progress ) ppc_md.progress("openpic: ipi",0x3bb); 371 if ( ppc_md.progress ) ppc_md.progress("openpic: ipi",0x3bb);
372 for (i = 0; i < OPENPIC_NUM_IPI; i++) { 372 for (i = 0; i < OPENPIC_NUM_IPI; i++) {
373 /* Disabled, Priority 10..13 */ 373 /* Disabled, increased priorities 10..13 */
374 openpic_initipi(i, 10+i, OPENPIC_VEC_IPI+i+offset); 374 openpic_initipi(i, OPENPIC_PRIORITY_IPI_BASE+i,
375 OPENPIC_VEC_IPI+i+offset);
375 /* IPIs are per-CPU */ 376 /* IPIs are per-CPU */
376 irq_desc[OPENPIC_VEC_IPI+i+offset].status |= IRQ_PER_CPU; 377 irq_desc[OPENPIC_VEC_IPI+i+offset].status |= IRQ_PER_CPU;
377 irq_desc[OPENPIC_VEC_IPI+i+offset].handler = &open_pic_ipi; 378 irq_desc[OPENPIC_VEC_IPI+i+offset].handler = &open_pic_ipi;
@@ -399,8 +400,9 @@ void __init openpic_init(int offset)
399 if (sense & IRQ_SENSE_MASK) 400 if (sense & IRQ_SENSE_MASK)
400 irq_desc[i+offset].status = IRQ_LEVEL; 401 irq_desc[i+offset].status = IRQ_LEVEL;
401 402
402 /* Enabled, Priority 8 */ 403 /* Enabled, Default priority */
403 openpic_initirq(i, 8, i+offset, (sense & IRQ_POLARITY_MASK), 404 openpic_initirq(i, OPENPIC_PRIORITY_DEFAULT, i+offset,
405 (sense & IRQ_POLARITY_MASK),
404 (sense & IRQ_SENSE_MASK)); 406 (sense & IRQ_SENSE_MASK));
405 /* Processor 0 */ 407 /* Processor 0 */
406 openpic_mapirq(i, CPU_MASK_CPU0, CPU_MASK_NONE); 408 openpic_mapirq(i, CPU_MASK_CPU0, CPU_MASK_NONE);
@@ -656,6 +658,18 @@ static void __init openpic_maptimer(u_int timer, cpumask_t cpumask)
656} 658}
657 659
658/* 660/*
661 * Change the priority of an interrupt
662 */
663void __init
664openpic_set_irq_priority(u_int irq, u_int pri)
665{
666 check_arg_irq(irq);
667 openpic_safe_writefield(&ISR[irq - open_pic_irq_offset]->Vector_Priority,
668 OPENPIC_PRIORITY_MASK,
669 pri << OPENPIC_PRIORITY_SHIFT);
670}
671
672/*
659 * Initalize the interrupt source which will generate an NMI. 673 * Initalize the interrupt source which will generate an NMI.
660 * This raises the interrupt's priority from 8 to 9. 674 * This raises the interrupt's priority from 8 to 9.
661 * 675 *
@@ -665,9 +679,7 @@ void __init
665openpic_init_nmi_irq(u_int irq) 679openpic_init_nmi_irq(u_int irq)
666{ 680{
667 check_arg_irq(irq); 681 check_arg_irq(irq);
668 openpic_safe_writefield(&ISR[irq - open_pic_irq_offset]->Vector_Priority, 682 openpic_set_irq_priority(irq, OPENPIC_PRIORITY_NMI);
669 OPENPIC_PRIORITY_MASK,
670 9 << OPENPIC_PRIORITY_SHIFT);
671} 683}
672 684
673/* 685/*