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/* 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>
#include <asm/ctlreg.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_DAS,
IRQIO_C15,
IRQIO_C70,
IRQIO_TAP,
IRQIO_VMR,
IRQIO_LCS,
IRQIO_CTC,
IRQIO_ADM,
IRQIO_CSC,
IRQIO_VIR,
IRQIO_QAI,
IRQIO_APB,
IRQIO_PCF,
IRQIO_PCD,
IRQIO_MSI,
IRQIO_VAI,
IRQIO_GAL,
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 {
union {
struct {
unsigned short subcode;
unsigned short code;
};
unsigned int int_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 \
(CR0_WARNING_TRACK | \
CR0_MALFUNCTION_ALERT_SUBMASK | \
CR0_EMERGENCY_SIGNAL_SUBMASK | \
CR0_EXTERNAL_CALL_SUBMASK | \
CR0_CLOCK_COMPARATOR_SUBMASK | \
CR0_CPU_TIMER_SUBMASK | \
CR0_SERVICE_SIGNAL_SUBMASK | \
CR0_INTERRUPT_KEY_SUBMASK | \
CR0_MEASUREMENT_ALERT_SUBMASK | \
CR0_ETR_SUBMASK | \
CR0_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 */
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