1 #include <linux/platform_device.h> 2 3 #include <asm/cpu_type.h> 4 5 struct 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 */ 22 extern 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 */ 28 struct sun4m_irq_percpu { 29 u32 pending; 30 u32 clear; 31 u32 set; 32 }; 33 34 /* This maps direct to global interrupt registers */ 35 struct sun4m_irq_global { 36 u32 pending; 37 u32 mask; 38 u32 mask_clear; 39 u32 mask_set; 40 u32 interrupt_target; 41 }; 42 43 extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS]; 44 extern 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 */ 56 struct 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 }; 76 extern struct sparc_config sparc_config; 77 78 unsigned int irq_alloc(unsigned int real_irq, unsigned int pil); 79 void irq_link(unsigned int irq); 80 void irq_unlink(unsigned int irq); 81 void handler_irq(unsigned int pil, struct pt_regs *regs); 82 83 unsigned long leon_get_irqmask(unsigned int irq); 84 85 /* irq_32.c */ 86 void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs); 87 88 /* sun4m_irq.c */ 89 void sun4m_nmi(struct pt_regs *regs); 90 91 /* sun4d_irq.c */ 92 void 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 99 void sun4d_ipi_interrupt(void); 100 101 #endif 102