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_CMR, 51 IRQEXT_FTP, 52 IRQIO_CIO, 53 IRQIO_QAI, 54 IRQIO_DAS, 55 IRQIO_C15, 56 IRQIO_C70, 57 IRQIO_TAP, 58 IRQIO_VMR, 59 IRQIO_LCS, 60 IRQIO_CTC, 61 IRQIO_APB, 62 IRQIO_ADM, 63 IRQIO_CSC, 64 IRQIO_PCI, 65 IRQIO_MSI, 66 IRQIO_VIR, 67 IRQIO_VAI, 68 NMI_NMI, 69 CPU_RST, 70 NR_ARCH_IRQS 71 }; 72 73 struct irq_stat { 74 unsigned int irqs[NR_ARCH_IRQS]; 75 }; 76 77 DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); 78 79 static __always_inline void inc_irq_stat(enum interruption_class irq) 80 { 81 __this_cpu_inc(irq_stat.irqs[irq]); 82 } 83 84 struct ext_code { 85 unsigned short subcode; 86 unsigned short code; 87 }; 88 89 typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long); 90 91 int register_external_irq(u16 code, ext_int_handler_t handler); 92 int unregister_external_irq(u16 code, ext_int_handler_t handler); 93 94 enum irq_subclass { 95 IRQ_SUBCLASS_MEASUREMENT_ALERT = 5, 96 IRQ_SUBCLASS_SERVICE_SIGNAL = 9, 97 }; 98 99 #define CR0_IRQ_SUBCLASS_MASK \ 100 ((1UL << (63 - 30)) /* Warning Track */ | \ 101 (1UL << (63 - 48)) /* Malfunction Alert */ | \ 102 (1UL << (63 - 49)) /* Emergency Signal */ | \ 103 (1UL << (63 - 50)) /* External Call */ | \ 104 (1UL << (63 - 52)) /* Clock Comparator */ | \ 105 (1UL << (63 - 53)) /* CPU Timer */ | \ 106 (1UL << (63 - 54)) /* Service Signal */ | \ 107 (1UL << (63 - 57)) /* Interrupt Key */ | \ 108 (1UL << (63 - 58)) /* Measurement Alert */ | \ 109 (1UL << (63 - 59)) /* Timing Alert */ | \ 110 (1UL << (63 - 62))) /* IUCV */ 111 112 void irq_subclass_register(enum irq_subclass subclass); 113 void irq_subclass_unregister(enum irq_subclass subclass); 114 115 #define irq_canonicalize(irq) (irq) 116 117 #endif /* __ASSEMBLY__ */ 118 119 #endif /* _ASM_IRQ_H */ 120