1#include <linux/platform_device.h>
  2
  3#include <asm/cpu_type.h>
  4
  5struct irq_bucket {
  6        struct irq_bucket *next;
  7        unsigned int real_irq;
  8        unsigned int irq;
  9        unsigned int pil;
 10};
 11
 12#define SUN4M_HARD_INT(x)       (0x000000001 << (x))
 13#define SUN4M_SOFT_INT(x)       (0x000010000 << (x))
 14
 15#define SUN4D_MAX_BOARD 10
 16#define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5)
 17
 18/* Map between the irq identifier used in hw to the
 19 * irq_bucket. The map is sufficient large to hold
 20 * the sun4d hw identifiers.
 21 */
 22extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ];
 23
 24
 25/* sun4m specific type definitions */
 26
 27/* This maps direct to CPU specific interrupt registers */
 28struct sun4m_irq_percpu {
 29	u32	pending;
 30	u32	clear;
 31	u32	set;
 32};
 33
 34/* This maps direct to global interrupt registers */
 35struct sun4m_irq_global {
 36	u32	pending;
 37	u32	mask;
 38	u32	mask_clear;
 39	u32	mask_set;
 40	u32	interrupt_target;
 41};
 42
 43extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
 44extern struct sun4m_irq_global __iomem *sun4m_irq_global;
 45
 46/* The following definitions describe the individual platform features: */
 47#define FEAT_L10_CLOCKSOURCE (1 << 0) /* L10 timer is used as a clocksource */
 48#define FEAT_L10_CLOCKEVENT  (1 << 1) /* L10 timer is used as a clockevent */
 49#define FEAT_L14_ONESHOT     (1 << 2) /* L14 timer clockevent can oneshot */
 50
 51/*
 52 * Platform specific configuration
 53 * The individual platforms assign their platform
 54 * specifics in their init functions.
 55 */
 56struct sparc_config {
 57	void (*init_timers)(void);
 58	unsigned int (*build_device_irq)(struct platform_device *op,
 59	                                 unsigned int real_irq);
 60
 61	/* generic clockevent features - see FEAT_* above */
 62	int features;
 63
 64	/* clock rate used for clock event timer */
 65	int clock_rate;
 66
 67	/* one period for clock source timer */
 68	unsigned int cs_period;
 69
 70	/* function to obtain offsett for cs period */
 71	unsigned int (*get_cycles_offset)(void);
 72
 73	void (*clear_clock_irq)(void);
 74	void (*load_profile_irq)(int cpu, unsigned int limit);
 75};
 76extern struct sparc_config sparc_config;
 77
 78unsigned int irq_alloc(unsigned int real_irq, unsigned int pil);
 79void irq_link(unsigned int irq);
 80void irq_unlink(unsigned int irq);
 81void handler_irq(unsigned int pil, struct pt_regs *regs);
 82
 83unsigned long leon_get_irqmask(unsigned int irq);
 84
 85/* irq_32.c */
 86void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs);
 87
 88/* sun4m_irq.c */
 89void sun4m_nmi(struct pt_regs *regs);
 90
 91/* sun4d_irq.c */
 92void sun4d_handler_irq(unsigned int pil, struct pt_regs *regs);
 93
 94#ifdef CONFIG_SMP
 95
 96/* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */
 97#define SUN4D_IPI_IRQ 13
 98
 99void sun4d_ipi_interrupt(void);
100
101#endif