From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/s390/include/asm/irq.h | 123 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 arch/s390/include/asm/irq.h (limited to 'arch/s390/include/asm/irq.h') diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h new file mode 100644 index 000000000..89902f754 --- /dev/null +++ b/arch/s390/include/asm/irq.h @@ -0,0 +1,123 @@ +/* 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 +#include +#include +#include + +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 \ + ((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 */ -- cgit v1.2.3