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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __ASM_SH_IRQ_H
2#define __ASM_SH_IRQ_H
3
Linus Torvalds1da177e2005-04-16 15:20:36 -07004#include <asm/machvec.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -07005
Paul Mundtbe782df2007-03-12 14:09:35 +09006/*
7 * A sane default based on a reasonable vector table size, platforms are
8 * advised to cap this at the hard limit that they're interested in
9 * through the machvec.
Linus Torvalds1da177e2005-04-16 15:20:36 -070010 */
Paul Mundtbe782df2007-03-12 14:09:35 +090011#define NR_IRQS 256
Linus Torvalds1da177e2005-04-16 15:20:36 -070012
Linus Torvalds1da177e2005-04-16 15:20:36 -070013/*
Jamie Lenehanea0f8fe2006-12-06 12:05:02 +090014 * Convert back and forth between INTEVT and IRQ values.
15 */
Paul Mundt3afb2092007-03-14 13:03:35 +090016#ifdef CONFIG_CPU_HAS_INTEVT
Jamie Lenehanea0f8fe2006-12-06 12:05:02 +090017#define evt2irq(evt) (((evt) >> 5) - 16)
18#define irq2evt(irq) (((irq) + 16) << 5)
Paul Mundt3afb2092007-03-14 13:03:35 +090019#else
20#define evt2irq(evt) (evt)
21#define irq2evt(irq) (irq)
22#endif
Jamie Lenehanea0f8fe2006-12-06 12:05:02 +090023
24/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070025 * Simple Mask Register Support
26 */
27extern void make_maskreg_irq(unsigned int irq);
28extern unsigned short *irq_mask_register;
29
30/*
Paul Mundt0f08f332006-09-27 17:03:56 +090031 * PINT IRQs
32 */
33void init_IRQ_pint(void);
Jamie Lenehanea0f8fe2006-12-06 12:05:02 +090034void make_imask_irq(unsigned int irq);
Linus Torvalds1da177e2005-04-16 15:20:36 -070035
Linus Torvalds1da177e2005-04-16 15:20:36 -070036static inline int generic_irq_demux(int irq)
37{
38 return irq;
39}
40
41#define irq_canonicalize(irq) (irq)
Paul Mundt9a7ef6d2006-11-20 13:55:34 +090042#define irq_demux(irq) sh_mv.mv_irq_demux(irq)
Linus Torvalds1da177e2005-04-16 15:20:36 -070043
Paul Mundta6a311392006-09-27 18:22:14 +090044#ifdef CONFIG_4KSTACKS
45extern void irq_ctx_init(int cpu);
46extern void irq_ctx_exit(int cpu);
47# define __ARCH_HAS_DO_SOFTIRQ
48#else
49# define irq_ctx_init(cpu) do { } while (0)
50# define irq_ctx_exit(cpu) do { } while (0)
51#endif
52
Linus Torvalds1da177e2005-04-16 15:20:36 -070053#endif /* __ASM_SH_IRQ_H */