1 #ifndef __ASM_SH_IRQ_H 2 #define __ASM_SH_IRQ_H 3 4 #include <linux/cpumask.h> 5 #include <asm/machvec.h> 6 7 /* 8 * A sane default based on a reasonable vector table size, platforms are 9 * advised to cap this at the hard limit that they're interested in 10 * through the machvec. 11 */ 12 #define NR_IRQS 512 13 #define NR_IRQS_LEGACY 8 /* Legacy external IRQ0-7 */ 14 15 /* 16 * This is a special IRQ number for indicating that no IRQ has been 17 * triggered and to simply ignore the IRQ dispatch. This is a special 18 * case that can happen with IRQ auto-distribution when multiple CPUs 19 * are woken up and signalled in parallel. 20 */ 21 #define NO_IRQ_IGNORE ((unsigned int)-1) 22 23 /* 24 * Simple Mask Register Support 25 */ 26 extern void make_maskreg_irq(unsigned int irq); 27 extern unsigned short *irq_mask_register; 28 29 /* 30 * PINT IRQs 31 */ 32 void init_IRQ_pint(void); 33 void make_imask_irq(unsigned int irq); 34 35 static inline int generic_irq_demux(int irq) 36 { 37 return irq; 38 } 39 40 #define irq_demux(irq) sh_mv.mv_irq_demux(irq) 41 42 void init_IRQ(void); 43 void migrate_irqs(void); 44 45 asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs); 46 47 #ifdef CONFIG_IRQSTACKS 48 extern void irq_ctx_init(int cpu); 49 extern void irq_ctx_exit(int cpu); 50 # define __ARCH_HAS_DO_SOFTIRQ 51 #else 52 # define irq_ctx_init(cpu) do { } while (0) 53 # define irq_ctx_exit(cpu) do { } while (0) 54 #endif 55 56 #ifdef CONFIG_INTC_BALANCING 57 extern unsigned int irq_lookup(unsigned int irq); 58 extern void irq_finish(unsigned int irq); 59 #else 60 #define irq_lookup(irq) (irq) 61 #define irq_finish(irq) do { } while (0) 62 #endif 63 64 #include <asm-generic/irq.h> 65 #ifdef CONFIG_CPU_SH5 66 #include <cpu/irq.h> 67 #endif 68 69 #endif /* __ASM_SH_IRQ_H */ 70