diff options
Diffstat (limited to 'arch/sh/include/asm/irq.h')
| -rw-r--r-- | arch/sh/include/asm/irq.h | 37 |
1 files changed, 24 insertions, 13 deletions
diff --git a/arch/sh/include/asm/irq.h b/arch/sh/include/asm/irq.h index df8e1500527..0e4f532e473 100644 --- a/arch/sh/include/asm/irq.h +++ b/arch/sh/include/asm/irq.h @@ -1,26 +1,27 @@ #ifndef __ASM_SH_IRQ_H #define __ASM_SH_IRQ_H +#include <linux/cpumask.h> #include <asm/machvec.h> /* - * A sane default based on a reasonable vector table size, platforms are - * advised to cap this at the hard limit that they're interested in - * through the machvec. + * Only legacy non-sparseirq platforms have to set a reasonably sane + * value here. sparseirq platforms allocate their irq_descs on the fly, + * so will expand automatically based on the number of registered IRQs. */ -#define NR_IRQS 256 -#define NR_IRQS_LEGACY 8 /* Legacy external IRQ0-7 */ +#ifdef CONFIG_SPARSE_IRQ +# define NR_IRQS 8 +#else +# define NR_IRQS 512 +#endif /* - * Convert back and forth between INTEVT and IRQ values. + * This is a special IRQ number for indicating that no IRQ has been + * triggered and to simply ignore the IRQ dispatch. This is a special + * case that can happen with IRQ auto-distribution when multiple CPUs + * are woken up and signalled in parallel. */ -#ifdef CONFIG_CPU_HAS_INTEVT -#define evt2irq(evt) (((evt) >> 5) - 16) -#define irq2evt(irq) (((irq) + 16) << 5) -#else -#define evt2irq(evt) (evt) -#define irq2evt(irq) (irq) -#endif +#define NO_IRQ_IGNORE ((unsigned int)-1) /* * Simple Mask Register Support @@ -42,6 +43,8 @@ static inline int generic_irq_demux(int irq) #define irq_demux(irq) sh_mv.mv_irq_demux(irq) void init_IRQ(void); +void migrate_irqs(void); + asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs); #ifdef CONFIG_IRQSTACKS @@ -53,6 +56,14 @@ extern void irq_ctx_exit(int cpu); # define irq_ctx_exit(cpu) do { } while (0) #endif +#ifdef CONFIG_INTC_BALANCING +extern unsigned int irq_lookup(unsigned int irq); +extern void irq_finish(unsigned int irq); +#else +#define irq_lookup(irq) (irq) +#define irq_finish(irq) do { } while (0) +#endif + #include <asm-generic/irq.h> #ifdef CONFIG_CPU_SH5 #include <cpu/irq.h> |