/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_IRQ_H
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#define _ASM_IRQ_H
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#define EXT_INTERRUPT 0
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#define IO_INTERRUPT 1
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#define THIN_INTERRUPT 2
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#define NR_IRQS_BASE 3
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#define NR_IRQS NR_IRQS_BASE
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#define NR_IRQS_LEGACY NR_IRQS_BASE
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/* External interruption codes */
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#define EXT_IRQ_INTERRUPT_KEY 0x0040
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#define EXT_IRQ_CLK_COMP 0x1004
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#define EXT_IRQ_CPU_TIMER 0x1005
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#define EXT_IRQ_WARNING_TRACK 0x1007
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#define EXT_IRQ_MALFUNC_ALERT 0x1200
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#define EXT_IRQ_EMERGENCY_SIG 0x1201
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#define EXT_IRQ_EXTERNAL_CALL 0x1202
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#define EXT_IRQ_TIMING_ALERT 0x1406
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#define EXT_IRQ_MEASURE_ALERT 0x1407
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#define EXT_IRQ_SERVICE_SIG 0x2401
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#define EXT_IRQ_CP_SERVICE 0x2603
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#define EXT_IRQ_IUCV 0x4000
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#ifndef __ASSEMBLY__
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#include <linux/hardirq.h>
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#include <linux/percpu.h>
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#include <linux/cache.h>
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#include <linux/types.h>
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enum interruption_class {
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IRQEXT_CLK,
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IRQEXT_EXC,
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IRQEXT_EMS,
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IRQEXT_TMR,
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IRQEXT_TLA,
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IRQEXT_PFL,
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IRQEXT_DSD,
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IRQEXT_VRT,
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IRQEXT_SCP,
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IRQEXT_IUC,
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IRQEXT_CMS,
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IRQEXT_CMC,
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IRQEXT_FTP,
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IRQIO_CIO,
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IRQIO_DAS,
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IRQIO_C15,
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IRQIO_C70,
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IRQIO_TAP,
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IRQIO_VMR,
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IRQIO_LCS,
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IRQIO_CTC,
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IRQIO_ADM,
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IRQIO_CSC,
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IRQIO_VIR,
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IRQIO_QAI,
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IRQIO_APB,
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IRQIO_PCF,
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IRQIO_PCD,
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IRQIO_MSI,
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IRQIO_VAI,
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IRQIO_GAL,
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NMI_NMI,
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CPU_RST,
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NR_ARCH_IRQS
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};
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struct irq_stat {
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unsigned int irqs[NR_ARCH_IRQS];
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};
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DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat);
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static __always_inline void inc_irq_stat(enum interruption_class irq)
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{
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__this_cpu_inc(irq_stat.irqs[irq]);
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}
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struct ext_code {
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unsigned short subcode;
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unsigned short code;
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};
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typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long);
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int register_external_irq(u16 code, ext_int_handler_t handler);
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int unregister_external_irq(u16 code, ext_int_handler_t handler);
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enum irq_subclass {
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IRQ_SUBCLASS_MEASUREMENT_ALERT = 5,
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IRQ_SUBCLASS_SERVICE_SIGNAL = 9,
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};
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#define CR0_IRQ_SUBCLASS_MASK \
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((1UL << (63 - 30)) /* Warning Track */ | \
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(1UL << (63 - 48)) /* Malfunction Alert */ | \
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(1UL << (63 - 49)) /* Emergency Signal */ | \
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(1UL << (63 - 50)) /* External Call */ | \
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(1UL << (63 - 52)) /* Clock Comparator */ | \
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(1UL << (63 - 53)) /* CPU Timer */ | \
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(1UL << (63 - 54)) /* Service Signal */ | \
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(1UL << (63 - 57)) /* Interrupt Key */ | \
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(1UL << (63 - 58)) /* Measurement Alert */ | \
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(1UL << (63 - 59)) /* Timing Alert */ | \
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(1UL << (63 - 62))) /* IUCV */
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void irq_subclass_register(enum irq_subclass subclass);
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void irq_subclass_unregister(enum irq_subclass subclass);
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#define irq_canonicalize(irq) (irq)
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_IRQ_H */
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