Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #ifndef __ASM_SH_IRQ_H |
| 2 | #define __ASM_SH_IRQ_H |
| 3 | |
Paul Mundt | 763142d | 2010-04-26 19:08:55 +0900 | [diff] [blame] | 4 | #include <linux/cpumask.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 5 | #include <asm/machvec.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 6 | |
Paul Mundt | be782df | 2007-03-12 14:09:35 +0900 | [diff] [blame] | 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. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | */ |
Yoshihiro Shimoda | b32f1fe | 2010-07-06 04:32:40 +0000 | [diff] [blame] | 12 | #define NR_IRQS 512 |
Paul Mundt | 62fad39 | 2009-05-22 13:50:18 +0900 | [diff] [blame] | 13 | #define NR_IRQS_LEGACY 8 /* Legacy external IRQ0-7 */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 15 | /* |
Paul Mundt | dc825b1 | 2010-04-15 13:13:52 +0900 | [diff] [blame] | 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 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | * Simple Mask Register Support |
| 25 | */ |
| 26 | extern void make_maskreg_irq(unsigned int irq); |
| 27 | extern unsigned short *irq_mask_register; |
| 28 | |
| 29 | /* |
Paul Mundt | 0f08f33 | 2006-09-27 17:03:56 +0900 | [diff] [blame] | 30 | * PINT IRQs |
| 31 | */ |
| 32 | void init_IRQ_pint(void); |
Jamie Lenehan | ea0f8fe | 2006-12-06 12:05:02 +0900 | [diff] [blame] | 33 | void make_imask_irq(unsigned int irq); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | static inline int generic_irq_demux(int irq) |
| 36 | { |
| 37 | return irq; |
| 38 | } |
| 39 | |
Paul Mundt | 9a7ef6d | 2006-11-20 13:55:34 +0900 | [diff] [blame] | 40 | #define irq_demux(irq) sh_mv.mv_irq_demux(irq) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | |
Paul Mundt | fa43972 | 2008-09-04 18:53:58 +0900 | [diff] [blame] | 42 | void init_IRQ(void); |
Paul Mundt | 763142d | 2010-04-26 19:08:55 +0900 | [diff] [blame] | 43 | void migrate_irqs(void); |
| 44 | |
Paul Mundt | fa43972 | 2008-09-04 18:53:58 +0900 | [diff] [blame] | 45 | asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs); |
| 46 | |
Paul Mundt | 110ed28 | 2007-11-02 12:16:51 +0900 | [diff] [blame] | 47 | #ifdef CONFIG_IRQSTACKS |
Paul Mundt | a6a31139 | 2006-09-27 18:22:14 +0900 | [diff] [blame] | 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 | |
Paul Mundt | dc825b1 | 2010-04-15 13:13:52 +0900 | [diff] [blame] | 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 | |
Paul Mundt | f8f06bc | 2009-06-14 23:21:54 +0900 | [diff] [blame] | 64 | #include <asm-generic/irq.h> |
Paul Mundt | c7a49dd | 2008-02-13 20:16:47 +0900 | [diff] [blame] | 65 | #ifdef CONFIG_CPU_SH5 |
Paul Mundt | f15cbe6 | 2008-07-29 08:09:44 +0900 | [diff] [blame] | 66 | #include <cpu/irq.h> |
Paul Mundt | c7a49dd | 2008-02-13 20:16:47 +0900 | [diff] [blame] | 67 | #endif |
| 68 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | #endif /* __ASM_SH_IRQ_H */ |