1 #include <linux/platform_device.h> 2 3 #include <asm/btfixup.h> 4 #include <asm/cpu_type.h> 5 6 struct irq_bucket { 7 struct irq_bucket *next; 8 unsigned int real_irq; 9 unsigned int irq; 10 unsigned int pil; 11 }; 12 13 #define SUN4D_MAX_BOARD 10 14 #define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5) 15 16 /* Map between the irq identifier used in hw to the 17 * irq_bucket. The map is sufficient large to hold 18 * the sun4d hw identifiers. 19 */ 20 extern struct irq_bucket *irq_map[SUN4D_MAX_IRQ]; 21 22 23 /* sun4m specific type definitions */ 24 25 /* This maps direct to CPU specific interrupt registers */ 26 struct sun4m_irq_percpu { 27 u32 pending; 28 u32 clear; 29 u32 set; 30 }; 31 32 /* This maps direct to global interrupt registers */ 33 struct sun4m_irq_global { 34 u32 pending; 35 u32 mask; 36 u32 mask_clear; 37 u32 mask_set; 38 u32 interrupt_target; 39 }; 40 41 extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS]; 42 extern struct sun4m_irq_global __iomem *sun4m_irq_global; 43 44 /* 45 * Platform specific irq configuration 46 * The individual platforms assign their platform 47 * specifics in their init functions. 48 */ 49 struct sparc_irq_config { 50 void (*init_timers)(irq_handler_t); 51 unsigned int (*build_device_irq)(struct platform_device *op, 52 unsigned int real_irq); 53 }; 54 extern struct sparc_irq_config sparc_irq_config; 55 56 unsigned int irq_alloc(unsigned int real_irq, unsigned int pil); 57 void irq_link(unsigned int irq); 58 void irq_unlink(unsigned int irq); 59 void handler_irq(unsigned int pil, struct pt_regs *regs); 60 61 /* Dave Redman (djhr@tadpole.co.uk) 62 * changed these to function pointers.. it saves cycles and will allow 63 * the irq dependencies to be split into different files at a later date 64 * sun4c_irq.c, sun4m_irq.c etc so we could reduce the kernel size. 65 * Jakub Jelinek (jj@sunsite.mff.cuni.cz) 66 * Changed these to btfixup entities... It saves cycles :) 67 */ 68 69 BTFIXUPDEF_CALL(void, clear_clock_irq, void) 70 BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int) 71 72 static inline void clear_clock_irq(void) 73 { 74 BTFIXUP_CALL(clear_clock_irq)(); 75 } 76 77 static inline void load_profile_irq(int cpu, int limit) 78 { 79 BTFIXUP_CALL(load_profile_irq)(cpu, limit); 80 } 81 82 #ifdef CONFIG_SMP 83 BTFIXUPDEF_CALL(void, set_cpu_int, int, int) 84 BTFIXUPDEF_CALL(void, clear_cpu_int, int, int) 85 BTFIXUPDEF_CALL(void, set_irq_udt, int) 86 87 #define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level) 88 #define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level) 89 #define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu) 90 91 /* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */ 92 #define SUN4D_IPI_IRQ 13 93 94 extern void sun4d_ipi_interrupt(void); 95 96 #endif 97