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

/* SPDX-License-Identifier: GPL-2.0 */
#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

#define NR_IRQS	NR_IRQS_BASE
#define NR_IRQS_LEGACY NR_IRQS_BASE

/* 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
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	#ifndef _ASM_IRQ_H
	3	#define _ASM_IRQ_H
	4
afaa7d29 SO	5	#define EXT_INTERRUPT 0
	6	#define IO_INTERRUPT 1
	7	#define THIN_INTERRUPT 2
1f44a225	8
afaa7d29	9	#define NR_IRQS_BASE 3
1f44a225	10
bb98f396 SO	11	#define NR_IRQS NR_IRQS_BASE
bb98f396 SO	12	#define NR_IRQS_LEGACY NR_IRQS_BASE
1f44a225	13
072c2790 TH	14	/* External interruption codes */
	15	#define EXT_IRQ_INTERRUPT_KEY 0x0040
	16	#define EXT_IRQ_CLK_COMP 0x1004
	17	#define EXT_IRQ_CPU_TIMER 0x1005
	18	#define EXT_IRQ_WARNING_TRACK 0x1007
	19	#define EXT_IRQ_MALFUNC_ALERT 0x1200
	20	#define EXT_IRQ_EMERGENCY_SIG 0x1201
	21	#define EXT_IRQ_EXTERNAL_CALL 0x1202
	22	#define EXT_IRQ_TIMING_ALERT 0x1406
	23	#define EXT_IRQ_MEASURE_ALERT 0x1407
	24	#define EXT_IRQ_SERVICE_SIG 0x2401
1dad093b	25	#define EXT_IRQ_CP_SERVICE 0x2603
072c2790 TH	26	#define EXT_IRQ_IUCV 0x4000
072c2790 TH	27
1f44a225 MS	28	#ifndef __ASSEMBLY__
1f44a225 MS	29
1da177e4	30	#include <linux/hardirq.h>
420f42ec HC	31	#include <linux/percpu.h>
420f42ec HC	32	#include <linux/cache.h>
d7b250e2	33	#include <linux/types.h>
1da177e4	34
420f42ec HC	35	enum interruption_class {
	36	IRQEXT_CLK,
	37	IRQEXT_EXC,
	38	IRQEXT_EMS,
	39	IRQEXT_TMR,
	40	IRQEXT_TLA,
	41	IRQEXT_PFL,
	42	IRQEXT_DSD,
	43	IRQEXT_VRT,
	44	IRQEXT_SCP,
	45	IRQEXT_IUC,
	46	IRQEXT_CMS,
	47	IRQEXT_CMC,
8f933b10	48	IRQEXT_FTP,
420f42ec HC	49	IRQIO_CIO,
	50	IRQIO_QAI,
	51	IRQIO_DAS,
	52	IRQIO_C15,
	53	IRQIO_C70,
	54	IRQIO_TAP,
	55	IRQIO_VMR,
	56	IRQIO_LCS,
420f42ec HC	57	IRQIO_CTC,
	58	IRQIO_APB,
	59	IRQIO_ADM,
	60	IRQIO_CSC,
	61	IRQIO_PCI,
	62	IRQIO_MSI,
89f88337	63	IRQIO_VIR,
96b14536	64	IRQIO_VAI,
052ff461	65	NMI_NMI,
93f3b2ee	66	CPU_RST,
420f42ec	67	NR_ARCH_IRQS
1da177e4 LT	68	};
1da177e4 LT	69
420f42ec HC	70	struct irq_stat {
	71	unsigned int irqs[NR_ARCH_IRQS];
	72	};
	73
	74	DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
	75
	76	static __always_inline void inc_irq_stat(enum interruption_class irq)
	77	{
eb7e7d76	78	__this_cpu_inc(irq_stat.irqs[irq]);
420f42ec HC	79	}
420f42ec HC	80
fde15c3a HC	81	struct ext_code {
	82	unsigned short subcode;
	83	unsigned short code;
	84	};
	85
	86	typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
d7b250e2	87
1dad093b TH	88	int register_external_irq(u16 code, ext_int_handler_t handler);
1dad093b TH	89	int unregister_external_irq(u16 code, ext_int_handler_t handler);
82003c3e HC	90
	91	enum irq_subclass {
	92	IRQ_SUBCLASS_MEASUREMENT_ALERT = 5,
	93	IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
	94	};
	95
db7e007f HC	96	#define CR0_IRQ_SUBCLASS_MASK \
	97	((1UL << (63 - 30)) /* Warning Track */ \| \
	98	(1UL << (63 - 48)) /* Malfunction Alert */ \| \
	99	(1UL << (63 - 49)) /* Emergency Signal */ \| \
	100	(1UL << (63 - 50)) /* External Call */ \| \
	101	(1UL << (63 - 52)) /* Clock Comparator */ \| \
	102	(1UL << (63 - 53)) /* CPU Timer */ \| \
	103	(1UL << (63 - 54)) /* Service Signal */ \| \
	104	(1UL << (63 - 57)) /* Interrupt Key */ \| \
	105	(1UL << (63 - 58)) /* Measurement Alert */ \| \
	106	(1UL << (63 - 59)) /* Timing Alert */ \| \
	107	(1UL << (63 - 62))) /* IUCV */
	108
82003c3e HC	109	void irq_subclass_register(enum irq_subclass subclass);
82003c3e HC	110	void irq_subclass_unregister(enum irq_subclass subclass);
d7b250e2	111
1f44a225 MS	112	#define irq_canonicalize(irq) (irq)
	113
	114	#endif /* __ASSEMBLY__ */
9a4da8a5	115
052ff461	116	#endif /* _ASM_IRQ_H */