1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ASM_SH_IRQ_H
 3#define __ASM_SH_IRQ_H
 4
 5#include <linux/cpumask.h>
 6#include <asm/machvec.h>
 7
 8/*
 9 * Only legacy non-sparseirq platforms have to set a reasonably sane
10 * value here. sparseirq platforms allocate their irq_descs on the fly,
11 * so will expand automatically based on the number of registered IRQs.
12 */
13#ifdef CONFIG_SPARSE_IRQ
14# define NR_IRQS		8
15#else
16# define NR_IRQS		512
17#endif
18
19/*
20 * This is a special IRQ number for indicating that no IRQ has been
21 * triggered and to simply ignore the IRQ dispatch. This is a special
22 * case that can happen with IRQ auto-distribution when multiple CPUs
23 * are woken up and signalled in parallel.
24 */
25#define NO_IRQ_IGNORE		((unsigned int)-1)
26
27/*
28 * Simple Mask Register Support
29 */
30extern void make_maskreg_irq(unsigned int irq);
31extern unsigned short *irq_mask_register;
32
33/*
34 * PINT IRQs
35 */
36void init_IRQ_pint(void);
37void make_imask_irq(unsigned int irq);
38
39static inline int generic_irq_demux(int irq)
40{
41	return irq;
42}
43
44#define irq_demux(irq)		sh_mv.mv_irq_demux(irq)
45
46void init_IRQ(void);
47void migrate_irqs(void);
48
49asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs);
50
51#ifdef CONFIG_IRQSTACKS
52extern void irq_ctx_init(int cpu);
53extern void irq_ctx_exit(int cpu);
54# define __ARCH_HAS_DO_SOFTIRQ
55#else
56# define irq_ctx_init(cpu) do { } while (0)
57# define irq_ctx_exit(cpu) do { } while (0)
58#endif
59
60#ifdef CONFIG_INTC_BALANCING
61extern unsigned int irq_lookup(unsigned int irq);
62extern void irq_finish(unsigned int irq);
63#else
64#define irq_lookup(irq)		(irq)
65#define irq_finish(irq)		do { } while (0)
66#endif
67
68#include <asm-generic/irq.h>
69#ifdef CONFIG_CPU_SH5
70#include <cpu/irq.h>
71#endif
72
73#endif /* __ASM_SH_IRQ_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ASM_SH_IRQ_H
 3#define __ASM_SH_IRQ_H
 4
 5#include <linux/cpumask.h>
 6#include <asm/machvec.h>
 7
 8/*
 
 
 
 
 
 
 
 
 
 
 
 9 * This is a special IRQ number for indicating that no IRQ has been
10 * triggered and to simply ignore the IRQ dispatch. This is a special
11 * case that can happen with IRQ auto-distribution when multiple CPUs
12 * are woken up and signalled in parallel.
13 */
14#define NO_IRQ_IGNORE		((unsigned int)-1)
15
16/*
 
 
 
 
 
 
17 * PINT IRQs
18 */
 
19void make_imask_irq(unsigned int irq);
20
21static inline int generic_irq_demux(int irq)
22{
23	return irq;
24}
25
26#define irq_demux(irq)		sh_mv.mv_irq_demux(irq)
27
28void init_IRQ(void);
29void migrate_irqs(void);
30
31asmlinkage int do_IRQ(unsigned int irq, struct pt_regs *regs);
32
33#ifdef CONFIG_IRQSTACKS
34extern void irq_ctx_init(int cpu);
35extern void irq_ctx_exit(int cpu);
 
36#else
37# define irq_ctx_init(cpu) do { } while (0)
38# define irq_ctx_exit(cpu) do { } while (0)
39#endif
40
41#ifdef CONFIG_INTC_BALANCING
42extern unsigned int irq_lookup(unsigned int irq);
43extern void irq_finish(unsigned int irq);
44#else
45#define irq_lookup(irq)		(irq)
46#define irq_finish(irq)		do { } while (0)
47#endif
48
49#include <asm-generic/irq.h>
 
 
 
50
51#endif /* __ASM_SH_IRQ_H */