patch-2.3.43 linux/include/asm-ia64/iosapic.h

• Lines: 124
• Date: Tue Feb 8 12:01:59 2000
• Orig file: v2.3.42/linux/include/asm-ia64/iosapic.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.42/linux/include/asm-ia64/iosapic.h linux/include/asm-ia64/iosapic.h
@@ -0,0 +1,123 @@
+#ifndef __ASM_IA64_IOSAPIC_H
+#define __ASM_IA64_IOSAPIC_H
+
+#include <linux/config.h>
+
+#define	IO_SAPIC_DEFAULT_ADDR	0xFEC00000
+
+#define	IO_SAPIC_REG_SELECT	0x0
+#define	IO_SAPIC_WINDOW		0x10
+#define	IO_SAPIC_EOI		0x40
+
+#define	IO_SAPIC_VERSION	0x1
+
+/*
+ * Redirection table entry
+ */
+
+#define	IO_SAPIC_RTE_LOW(i)	(0x10+i*2)
+#define	IO_SAPIC_RTE_HIGH(i)	(0x11+i*2)
+
+
+#define	IO_SAPIC_DEST_SHIFT		16
+
+/*
+ * Delivery mode
+ */
+
+#define	IO_SAPIC_DELIVERY_SHIFT		8
+#define	IO_SAPIC_FIXED			0x0
+#define	IO_SAPIC_LOWEST_PRIORITY	0x1
+#define	IO_SAPIC_PMI			0x2
+#define	IO_SAPIC_NMI			0x4
+#define	IO_SAPIC_INIT			0x5
+#define	IO_SAPIC_EXTINT			0x7
+
+/*
+ * Interrupt polarity
+ */
+
+#define	IO_SAPIC_POLARITY_SHIFT		13
+#define	IO_SAPIC_POL_HIGH		0
+#define	IO_SAPIC_POL_LOW		1
+
+/*
+ * Trigger mode
+ */
+
+#define	IO_SAPIC_TRIGGER_SHIFT		15
+#define	IO_SAPIC_EDGE			0
+#define	IO_SAPIC_LEVEL			1
+
+/*
+ * Mask bit
+ */
+
+#define	IO_SAPIC_MASK_SHIFT		16
+#define	IO_SAPIC_UNMASK			0
+#define	IO_SAPIC_MSAK			1
+
+/*
+ * Bus types
+ */
+#define  BUS_ISA         0               /* ISA Bus */
+#define  BUS_PCI         1               /* PCI Bus */
+
+#ifndef CONFIG_IA64_PCI_FIRMWARE_IRQ
+struct intr_routing_entry {
+      unsigned char srcbus;
+      unsigned char srcbusno;
+      unsigned char srcbusirq;
+      unsigned char iosapic_pin;
+      unsigned char dstiosapic;
+      unsigned char mode;
+      unsigned char trigger;
+      unsigned char polarity;
+};
+
+extern        struct  intr_routing_entry      intr_routing[];
+#endif
+
+#ifndef __ASSEMBLY__
+
+#include <asm/irq.h>
+
+/*
+ * IOSAPIC Version Register return 32 bit structure like:
+ * {
+ *	unsigned int version   : 8;
+ *	unsigned int reserved1 : 8;
+ *	unsigned int pins      : 8;
+ *	unsigned int reserved2 : 8;
+ * }
+ */
+extern unsigned int iosapic_version(unsigned long);
+extern void iosapic_init(unsigned long);
+
+struct iosapic_vector {
+	unsigned long iosapic_base; /* IOSAPIC Base address */
+        char pin;		    /* IOSAPIC pin (-1 == No data) */
+	unsigned char bus;	    /* Bus number */
+	unsigned char baseirq;	    /* Base IRQ handled by this IOSAPIC */
+	unsigned char bustype;	    /* Bus type (ISA, PCI, etc) */
+	unsigned int busdata;	    /* Bus specific ID */
+        /* These bitfields use the values defined above */
+	unsigned char dmode        : 3;
+	unsigned char polarity     : 1;
+	unsigned char trigger      : 1; 
+	unsigned char UNUSED       : 3;
+};
+extern struct iosapic_vector iosapic_vector[NR_IRQS];
+
+#define iosapic_addr(v)     iosapic_vector[v].iosapic_base
+#define iosapic_pin(v)      iosapic_vector[v].pin
+#define iosapic_bus(v)      iosapic_vector[v].bus
+#define iosapic_baseirq(v)  iosapic_vector[v].baseirq
+#define iosapic_bustype(v)  iosapic_vector[v].bustype
+#define iosapic_busdata(v)  iosapic_vector[v].busdata
+#define iosapic_dmode(v)    iosapic_vector[v].dmode
+#define iosapic_trigger(v)  iosapic_vector[v].trigger
+#define iosapic_polarity(v) iosapic_vector[v].polarity
+
+# endif /* !__ASSEMBLY__ */
+#endif /* __ASM_IA64_IOSAPIC_H */