1 #include <linux/platform_device.h> 2 3 #include <asm/btfixup.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 SUN4D_MAX_BOARD 10 13 #define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5) 14 15 /* Map between the irq identifier used in hw to the 16 * irq_bucket. The map is sufficient large to hold 17 * the sun4d hw identifiers. 18 */ 19 extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ]; 20 21 22 /* sun4m specific type definitions */ 23 24 /* This maps direct to CPU specific interrupt registers */ 25 struct sun4m_irq_percpu { 26 u32 pending; 27 u32 clear; 28 u32 set; 29 }; 30 31 /* This maps direct to global interrupt registers */ 32 struct sun4m_irq_global { 33 u32 pending; 34 u32 mask; 35 u32 mask_clear; 36 u32 mask_set; 37 u32 interrupt_target; 38 }; 39 40 extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS]; 41 extern struct sun4m_irq_global __iomem *sun4m_irq_global; 42 43 /* 44 * Platform specific irq configuration 45 * The individual platforms assign their platform 46 * specifics in their init functions. 47 */ 48 struct sparc_irq_config { 49 void (*init_timers)(irq_handler_t); 50 unsigned int (*build_device_irq)(struct platform_device *op, 51 unsigned int real_irq); 52 }; 53 extern struct sparc_irq_config sparc_irq_config; 54 55 unsigned int irq_alloc(unsigned int real_irq, unsigned int pil); 56 void irq_link(unsigned int irq); 57 void irq_unlink(unsigned int irq); 58 void handler_irq(unsigned int pil, struct pt_regs *regs); 59 60 /* Dave Redman (djhr@tadpole.co.uk) 61 * changed these to function pointers.. it saves cycles and will allow 62 * the irq dependencies to be split into different files at a later date 63 * sun4c_irq.c, sun4m_irq.c etc so we could reduce the kernel size. 64 * Jakub Jelinek (jj@sunsite.mff.cuni.cz) 65 * Changed these to btfixup entities... It saves cycles :) 66 */ 67 68 BTFIXUPDEF_CALL(void, clear_clock_irq, void) 69 BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int) 70 71 static inline void clear_clock_irq(void) 72 { 73 BTFIXUP_CALL(clear_clock_irq)(); 74 } 75 76 static inline void load_profile_irq(int cpu, int limit) 77 { 78 BTFIXUP_CALL(load_profile_irq)(cpu, limit); 79 } 80 81 #ifdef CONFIG_SMP 82 BTFIXUPDEF_CALL(void, set_cpu_int, int, int) 83 BTFIXUPDEF_CALL(void, clear_cpu_int, int, int) 84 BTFIXUPDEF_CALL(void, set_irq_udt, int) 85 86 #define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level) 87 #define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level) 88 #define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu) 89 90 /* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */ 91 #define SUN4D_IPI_IRQ 13 92 93 extern void sun4d_ipi_interrupt(void); 94 95 #endif 96