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