1#ifndef _ASM_IRQ_H
2#define _ASM_IRQ_H
3
4#define EXT_INTERRUPT	0
5#define IO_INTERRUPT	1
6#define THIN_INTERRUPT	2
7
8#define NR_IRQS_BASE	3
9
10#ifdef CONFIG_PCI_NR_MSI
11# define NR_IRQS	(NR_IRQS_BASE + CONFIG_PCI_NR_MSI)
12#else
13# define NR_IRQS	NR_IRQS_BASE
14#endif
15
16/* External interruption codes */
17#define EXT_IRQ_INTERRUPT_KEY	0x0040
18#define EXT_IRQ_CLK_COMP	0x1004
19#define EXT_IRQ_CPU_TIMER	0x1005
20#define EXT_IRQ_WARNING_TRACK	0x1007
21#define EXT_IRQ_MALFUNC_ALERT	0x1200
22#define EXT_IRQ_EMERGENCY_SIG	0x1201
23#define EXT_IRQ_EXTERNAL_CALL	0x1202
24#define EXT_IRQ_TIMING_ALERT	0x1406
25#define EXT_IRQ_MEASURE_ALERT	0x1407
26#define EXT_IRQ_SERVICE_SIG	0x2401
27#define EXT_IRQ_CP_SERVICE	0x2603
28#define EXT_IRQ_IUCV		0x4000
29
30#ifndef __ASSEMBLY__
31
32#include <linux/hardirq.h>
33#include <linux/percpu.h>
34#include <linux/cache.h>
35#include <linux/types.h>
36
37enum interruption_class {
38	IRQEXT_CLK,
39	IRQEXT_EXC,
40	IRQEXT_EMS,
41	IRQEXT_TMR,
42	IRQEXT_TLA,
43	IRQEXT_PFL,
44	IRQEXT_DSD,
45	IRQEXT_VRT,
46	IRQEXT_SCP,
47	IRQEXT_IUC,
48	IRQEXT_CMS,
49	IRQEXT_CMC,
50	IRQEXT_CMR,
51	IRQEXT_FTP,
52	IRQIO_CIO,
53	IRQIO_QAI,
54	IRQIO_DAS,
55	IRQIO_C15,
56	IRQIO_C70,
57	IRQIO_TAP,
58	IRQIO_VMR,
59	IRQIO_LCS,
60	IRQIO_CTC,
61	IRQIO_APB,
62	IRQIO_ADM,
63	IRQIO_CSC,
64	IRQIO_PCI,
65	IRQIO_MSI,
66	IRQIO_VIR,
67	IRQIO_VAI,
68	NMI_NMI,
69	CPU_RST,
70	NR_ARCH_IRQS
71};
72
73struct irq_stat {
74	unsigned int irqs[NR_ARCH_IRQS];
75};
76
77DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
78
79static __always_inline void inc_irq_stat(enum interruption_class irq)
80{
81	__this_cpu_inc(irq_stat.irqs[irq]);
82}
83
84struct ext_code {
85	unsigned short subcode;
86	unsigned short code;
87};
88
89typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
90
91int register_external_irq(u16 code, ext_int_handler_t handler);
92int unregister_external_irq(u16 code, ext_int_handler_t handler);
93
94enum irq_subclass {
95	IRQ_SUBCLASS_MEASUREMENT_ALERT = 5,
96	IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
97};
98
99void irq_subclass_register(enum irq_subclass subclass);
100void irq_subclass_unregister(enum irq_subclass subclass);
101
102#define irq_canonicalize(irq)  (irq)
103
104#endif /* __ASSEMBLY__ */
105
106#endif /* _ASM_IRQ_H */
107