[deliverable/linux.git] / arch / s390 / include / asm / irq.h

#ifndef _ASM_IRQ_H
#define _ASM_IRQ_H

#define EXT_INTERRUPT	0
#define IO_INTERRUPT	1
#define THIN_INTERRUPT	2

#define NR_IRQS_BASE	3

#ifdef CONFIG_PCI_NR_MSI
# define NR_IRQS	(NR_IRQS_BASE + CONFIG_PCI_NR_MSI)
#else
# define NR_IRQS	NR_IRQS_BASE
#endif

/* External interruption codes */
#define EXT_IRQ_INTERRUPT_KEY	0x0040
#define EXT_IRQ_CLK_COMP	0x1004
#define EXT_IRQ_CPU_TIMER	0x1005
#define EXT_IRQ_WARNING_TRACK	0x1007
#define EXT_IRQ_MALFUNC_ALERT	0x1200
#define EXT_IRQ_EMERGENCY_SIG	0x1201
#define EXT_IRQ_EXTERNAL_CALL	0x1202
#define EXT_IRQ_TIMING_ALERT	0x1406
#define EXT_IRQ_MEASURE_ALERT	0x1407
#define EXT_IRQ_SERVICE_SIG	0x2401
#define EXT_IRQ_CP_SERVICE	0x2603
#define EXT_IRQ_IUCV		0x4000

#ifndef __ASSEMBLY__

#include <linux/hardirq.h>
#include <linux/percpu.h>
#include <linux/cache.h>
#include <linux/types.h>

enum interruption_class {
	IRQEXT_CLK,
	IRQEXT_EXC,
	IRQEXT_EMS,
	IRQEXT_TMR,
	IRQEXT_TLA,
	IRQEXT_PFL,
	IRQEXT_DSD,
	IRQEXT_VRT,
	IRQEXT_SCP,
	IRQEXT_IUC,
	IRQEXT_CMS,
	IRQEXT_CMC,
	IRQEXT_FTP,
	IRQIO_CIO,
	IRQIO_QAI,
	IRQIO_DAS,
	IRQIO_C15,
	IRQIO_C70,
	IRQIO_TAP,
	IRQIO_VMR,
	IRQIO_LCS,
	IRQIO_CTC,
	IRQIO_APB,
	IRQIO_ADM,
	IRQIO_CSC,
	IRQIO_PCI,
	IRQIO_MSI,
	IRQIO_VIR,
	IRQIO_VAI,
	NMI_NMI,
	CPU_RST,
	NR_ARCH_IRQS
};

struct irq_stat {
	unsigned int irqs[NR_ARCH_IRQS];
};

DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);

static __always_inline void inc_irq_stat(enum interruption_class irq)
{
	__this_cpu_inc(irq_stat.irqs[irq]);
}

struct ext_code {
	unsigned short subcode;
	unsigned short code;
};

typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);

int register_external_irq(u16 code, ext_int_handler_t handler);
int unregister_external_irq(u16 code, ext_int_handler_t handler);

enum irq_subclass {
	IRQ_SUBCLASS_MEASUREMENT_ALERT = 5,
	IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
};

#define CR0_IRQ_SUBCLASS_MASK					  \
	((1UL << (63 - 30))  /* Warning Track */		| \
	 (1UL << (63 - 48))  /* Malfunction Alert */		| \
	 (1UL << (63 - 49))  /* Emergency Signal */		| \
	 (1UL << (63 - 50))  /* External Call */		| \
	 (1UL << (63 - 52))  /* Clock Comparator */		| \
	 (1UL << (63 - 53))  /* CPU Timer */			| \
	 (1UL << (63 - 54))  /* Service Signal */		| \
	 (1UL << (63 - 57))  /* Interrupt Key */		| \
	 (1UL << (63 - 58))  /* Measurement Alert */		| \
	 (1UL << (63 - 59))  /* Timing Alert */			| \
	 (1UL << (63 - 62))) /* IUCV */

void irq_subclass_register(enum irq_subclass subclass);
void irq_subclass_unregister(enum irq_subclass subclass);

#define irq_canonicalize(irq)  (irq)

#endif /* __ASSEMBLY__ */

#endif /* _ASM_IRQ_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_IRQ_H
	2	#define _ASM_IRQ_H
	3
afaa7d29 SO	4	#define EXT_INTERRUPT 0
	5	#define IO_INTERRUPT 1
	6	#define THIN_INTERRUPT 2
1f44a225	7
afaa7d29	8	#define NR_IRQS_BASE 3
1f44a225 MS	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
072c2790 TH	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
1dad093b	27	#define EXT_IRQ_CP_SERVICE 0x2603
072c2790 TH	28	#define EXT_IRQ_IUCV 0x4000
072c2790 TH	29
1f44a225 MS	30	#ifndef __ASSEMBLY__
1f44a225 MS	31
1da177e4	32	#include <linux/hardirq.h>
420f42ec HC	33	#include <linux/percpu.h>
420f42ec HC	34	#include <linux/cache.h>
d7b250e2	35	#include <linux/types.h>
1da177e4	36
420f42ec HC	37	enum 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,
8f933b10	50	IRQEXT_FTP,
420f42ec HC	51	IRQIO_CIO,
	52	IRQIO_QAI,
	53	IRQIO_DAS,
	54	IRQIO_C15,
	55	IRQIO_C70,
	56	IRQIO_TAP,
	57	IRQIO_VMR,
	58	IRQIO_LCS,
420f42ec HC	59	IRQIO_CTC,
	60	IRQIO_APB,
	61	IRQIO_ADM,
	62	IRQIO_CSC,
	63	IRQIO_PCI,
	64	IRQIO_MSI,
89f88337	65	IRQIO_VIR,
96b14536	66	IRQIO_VAI,
052ff461	67	NMI_NMI,
93f3b2ee	68	CPU_RST,
420f42ec	69	NR_ARCH_IRQS
1da177e4 LT	70	};
1da177e4 LT	71
420f42ec HC	72	struct irq_stat {
	73	unsigned int irqs[NR_ARCH_IRQS];
	74	};
	75
	76	DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
	77
	78	static __always_inline void inc_irq_stat(enum interruption_class irq)
	79	{
eb7e7d76	80	__this_cpu_inc(irq_stat.irqs[irq]);
420f42ec HC	81	}
420f42ec HC	82
fde15c3a HC	83	struct ext_code {
	84	unsigned short subcode;
	85	unsigned short code;
	86	};
	87
	88	typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
d7b250e2	89
1dad093b TH	90	int register_external_irq(u16 code, ext_int_handler_t handler);
1dad093b TH	91	int unregister_external_irq(u16 code, ext_int_handler_t handler);
82003c3e HC	92
	93	enum irq_subclass {
	94	IRQ_SUBCLASS_MEASUREMENT_ALERT = 5,
	95	IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
	96	};
	97
db7e007f HC	98	#define CR0_IRQ_SUBCLASS_MASK \
	99	((1UL << (63 - 30)) /* Warning Track */ \| \
	100	(1UL << (63 - 48)) /* Malfunction Alert */ \| \
	101	(1UL << (63 - 49)) /* Emergency Signal */ \| \
	102	(1UL << (63 - 50)) /* External Call */ \| \
	103	(1UL << (63 - 52)) /* Clock Comparator */ \| \
	104	(1UL << (63 - 53)) /* CPU Timer */ \| \
	105	(1UL << (63 - 54)) /* Service Signal */ \| \
	106	(1UL << (63 - 57)) /* Interrupt Key */ \| \
	107	(1UL << (63 - 58)) /* Measurement Alert */ \| \
	108	(1UL << (63 - 59)) /* Timing Alert */ \| \
	109	(1UL << (63 - 62))) /* IUCV */
	110
82003c3e HC	111	void irq_subclass_register(enum irq_subclass subclass);
82003c3e HC	112	void irq_subclass_unregister(enum irq_subclass subclass);
d7b250e2	113
1f44a225 MS	114	#define irq_canonicalize(irq) (irq)
	115
	116	#endif /* __ASSEMBLY__ */
9a4da8a5	117
052ff461	118	#endif /* _ASM_IRQ_H */