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 #ifdef CONFIG_PCI_NR_MSI 11 # define NR_IRQS (NR_IRQS_BASE + CONFIG_PCI_NR_MSI) 12 #else 13 # define NR_IRQS NR_IRQS_BASE 14 #endif 15 16 /* External interruption codes */ 17 #define EXT_IRQ_INTERRUPT_KEY 0x0040 18 #define EXT_IRQ_CLK_COMP 0x1004 19 #define EXT_IRQ_CPU_TIMER 0x1005 20 #define EXT_IRQ_WARNING_TRACK 0x1007 21 #define EXT_IRQ_MALFUNC_ALERT 0x1200 22 #define EXT_IRQ_EMERGENCY_SIG 0x1201 23 #define EXT_IRQ_EXTERNAL_CALL 0x1202 24 #define EXT_IRQ_TIMING_ALERT 0x1406 25 #define EXT_IRQ_MEASURE_ALERT 0x1407 26 #define EXT_IRQ_SERVICE_SIG 0x2401 27 #define EXT_IRQ_CP_SERVICE 0x2603 28 #define EXT_IRQ_IUCV 0x4000 29 30 #ifndef __ASSEMBLY__ 31 32 #include <linux/hardirq.h> 33 #include <linux/percpu.h> 34 #include <linux/cache.h> 35 #include <linux/types.h> 36 37 enum interruption_class { 38 IRQEXT_CLK, 39 IRQEXT_EXC, 40 IRQEXT_EMS, 41 IRQEXT_TMR, 42 IRQEXT_TLA, 43 IRQEXT_PFL, 44 IRQEXT_DSD, 45 IRQEXT_VRT, 46 IRQEXT_SCP, 47 IRQEXT_IUC, 48 IRQEXT_CMS, 49 IRQEXT_CMC, 50 IRQEXT_FTP, 51 IRQIO_CIO, 52 IRQIO_QAI, 53 IRQIO_DAS, 54 IRQIO_C15, 55 IRQIO_C70, 56 IRQIO_TAP, 57 IRQIO_VMR, 58 IRQIO_LCS, 59 IRQIO_CTC, 60 IRQIO_APB, 61 IRQIO_ADM, 62 IRQIO_CSC, 63 IRQIO_PCI, 64 IRQIO_MSI, 65 IRQIO_VIR, 66 IRQIO_VAI, 67 NMI_NMI, 68 CPU_RST, 69 NR_ARCH_IRQS 70 }; 71 72 struct irq_stat { 73 unsigned int irqs[NR_ARCH_IRQS]; 74 }; 75 76 DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); 77 78 static __always_inline void inc_irq_stat(enum interruption_class irq) 79 { 80 __this_cpu_inc(irq_stat.irqs[irq]); 81 } 82 83 struct ext_code { 84 unsigned short subcode; 85 unsigned short code; 86 }; 87 88 typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long); 89 90 int register_external_irq(u16 code, ext_int_handler_t handler); 91 int unregister_external_irq(u16 code, ext_int_handler_t handler); 92 93 enum irq_subclass { 94 IRQ_SUBCLASS_MEASUREMENT_ALERT = 5, 95 IRQ_SUBCLASS_SERVICE_SIGNAL = 9, 96 }; 97 98 #define CR0_IRQ_SUBCLASS_MASK \ 99 ((1UL << (63 - 30)) /* Warning Track */ | \ 100 (1UL << (63 - 48)) /* Malfunction Alert */ | \ 101 (1UL << (63 - 49)) /* Emergency Signal */ | \ 102 (1UL << (63 - 50)) /* External Call */ | \ 103 (1UL << (63 - 52)) /* Clock Comparator */ | \ 104 (1UL << (63 - 53)) /* CPU Timer */ | \ 105 (1UL << (63 - 54)) /* Service Signal */ | \ 106 (1UL << (63 - 57)) /* Interrupt Key */ | \ 107 (1UL << (63 - 58)) /* Measurement Alert */ | \ 108 (1UL << (63 - 59)) /* Timing Alert */ | \ 109 (1UL << (63 - 62))) /* IUCV */ 110 111 void irq_subclass_register(enum irq_subclass subclass); 112 void irq_subclass_unregister(enum irq_subclass subclass); 113 114 #define irq_canonicalize(irq) (irq) 115 116 #endif /* __ASSEMBLY__ */ 117 118 #endif /* _ASM_IRQ_H */ 119