1 #ifndef _ASM_IRQ_H 2 #define _ASM_IRQ_H 3 4 #define EXT_INTERRUPT 1 5 #define IO_INTERRUPT 2 6 #define THIN_INTERRUPT 3 7 8 #define NR_IRQS_BASE 4 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 /* This number is used when no interrupt has been assigned */ 17 #define NO_IRQ 0 18 19 /* External interruption codes */ 20 #define EXT_IRQ_INTERRUPT_KEY 0x0040 21 #define EXT_IRQ_CLK_COMP 0x1004 22 #define EXT_IRQ_CPU_TIMER 0x1005 23 #define EXT_IRQ_WARNING_TRACK 0x1007 24 #define EXT_IRQ_MALFUNC_ALERT 0x1200 25 #define EXT_IRQ_EMERGENCY_SIG 0x1201 26 #define EXT_IRQ_EXTERNAL_CALL 0x1202 27 #define EXT_IRQ_TIMING_ALERT 0x1406 28 #define EXT_IRQ_MEASURE_ALERT 0x1407 29 #define EXT_IRQ_SERVICE_SIG 0x2401 30 #define EXT_IRQ_CP_SERVICE 0x2603 31 #define EXT_IRQ_IUCV 0x4000 32 33 #ifndef __ASSEMBLY__ 34 35 #include <linux/hardirq.h> 36 #include <linux/percpu.h> 37 #include <linux/cache.h> 38 #include <linux/types.h> 39 40 enum interruption_class { 41 IRQEXT_CLK, 42 IRQEXT_EXC, 43 IRQEXT_EMS, 44 IRQEXT_TMR, 45 IRQEXT_TLA, 46 IRQEXT_PFL, 47 IRQEXT_DSD, 48 IRQEXT_VRT, 49 IRQEXT_SCP, 50 IRQEXT_IUC, 51 IRQEXT_CMS, 52 IRQEXT_CMC, 53 IRQEXT_CMR, 54 IRQEXT_FTP, 55 IRQIO_CIO, 56 IRQIO_QAI, 57 IRQIO_DAS, 58 IRQIO_C15, 59 IRQIO_C70, 60 IRQIO_TAP, 61 IRQIO_VMR, 62 IRQIO_LCS, 63 IRQIO_CLW, 64 IRQIO_CTC, 65 IRQIO_APB, 66 IRQIO_ADM, 67 IRQIO_CSC, 68 IRQIO_PCI, 69 IRQIO_MSI, 70 IRQIO_VIR, 71 IRQIO_VAI, 72 NMI_NMI, 73 CPU_RST, 74 NR_ARCH_IRQS 75 }; 76 77 struct irq_stat { 78 unsigned int irqs[NR_ARCH_IRQS]; 79 }; 80 81 DECLARE_PER_CPU_SHARED_ALIGNED(struct irq_stat, irq_stat); 82 83 static __always_inline void inc_irq_stat(enum interruption_class irq) 84 { 85 __this_cpu_inc(irq_stat.irqs[irq]); 86 } 87 88 struct ext_code { 89 unsigned short subcode; 90 unsigned short code; 91 }; 92 93 typedef void (*ext_int_handler_t)(struct ext_code, unsigned int, unsigned long); 94 95 int register_external_irq(u16 code, ext_int_handler_t handler); 96 int unregister_external_irq(u16 code, ext_int_handler_t handler); 97 98 enum irq_subclass { 99 IRQ_SUBCLASS_MEASUREMENT_ALERT = 5, 100 IRQ_SUBCLASS_SERVICE_SIGNAL = 9, 101 }; 102 103 void irq_subclass_register(enum irq_subclass subclass); 104 void irq_subclass_unregister(enum irq_subclass subclass); 105 106 #define irq_canonicalize(irq) (irq) 107 108 #endif /* __ASSEMBLY__ */ 109 110 #endif /* _ASM_IRQ_H */ 111