1/* 2 * arch/powerpc/platforms/pseries/xics.h 3 * 4 * Copyright 2000 IBM Corporation. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 */ 11 12#ifndef _POWERPC_KERNEL_XICS_H 13#define _POWERPC_KERNEL_XICS_H 14 15#include <linux/cache.h> 16 17extern void xics_init_IRQ(void); 18extern void xics_setup_cpu(void); 19extern void xics_teardown_cpu(int secondary); 20extern void xics_cause_IPI(int cpu); 21extern void xics_request_IPIs(void); 22extern void xics_migrate_irqs_away(void); 23 24/* first argument is ignored for now*/ 25void pSeriesLP_cppr_info(int n_cpu, u8 value); 26 27struct xics_ipi_struct { 28 volatile unsigned long value; 29} ____cacheline_aligned; 30 31extern struct xics_ipi_struct xics_ipi_message[NR_CPUS] __cacheline_aligned; 32 33struct irq_desc; 34extern void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc); 35 36#endif /* _POWERPC_KERNEL_XICS_H */ 37