Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / s390 / include / asm / irq.h

diff --git a/kernel/arch/s390/include/asm/irq.h b/kernel/arch/s390/include/asm/irq.h
new file mode 100644 (file)
index 0000000..ff95d15
--- /dev/null
+++ b/kernel/arch/s390/include/asm/irq.h
@@ -0,0 +1,106 @@
+#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
+
+#ifdef CONFIG_PCI_NR_MSI
+# define NR_IRQS       (NR_IRQS_BASE + CONFIG_PCI_NR_MSI)
+#else
+# define NR_IRQS       NR_IRQS_BASE
+#endif
+
+/* 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 <linux/hardirq.h>
+#include <linux/percpu.h>
+#include <linux/cache.h>
+#include <linux/types.h>
+
+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_CMR,
+       IRQEXT_FTP,
+       IRQIO_CIO,
+       IRQIO_QAI,
+       IRQIO_DAS,
+       IRQIO_C15,
+       IRQIO_C70,
+       IRQIO_TAP,
+       IRQIO_VMR,
+       IRQIO_LCS,
+       IRQIO_CTC,
+       IRQIO_APB,
+       IRQIO_ADM,
+       IRQIO_CSC,
+       IRQIO_PCI,
+       IRQIO_MSI,
+       IRQIO_VIR,
+       IRQIO_VAI,
+       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 {
+       unsigned short subcode;
+       unsigned short 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,
+};
+
+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 */