mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 04:05:18 +07:00
afaa7d29bc
Irq 0 is currently unused on s390. Since there is no reason to do this start counting at the beginning and gain an additional irq. Also correctly report the smallest usable irq number for dynamic allocation. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
108 lines
2.0 KiB
C
108 lines
2.0 KiB
C
#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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#ifdef CONFIG_PCI_NR_MSI
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# define NR_IRQS (NR_IRQS_BASE + CONFIG_PCI_NR_MSI)
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#else
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# define NR_IRQS NR_IRQS_BASE
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#endif
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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_CMR,
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IRQEXT_FTP,
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IRQIO_CIO,
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IRQIO_QAI,
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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_CLW,
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IRQIO_CTC,
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IRQIO_APB,
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IRQIO_ADM,
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IRQIO_CSC,
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IRQIO_PCI,
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IRQIO_MSI,
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IRQIO_VIR,
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IRQIO_VAI,
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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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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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