Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 128 insertions, 0 deletions

diff --git a/include/asm-m68knommu/irq.h b/include/asm-m68knommu/irq.h
new file mode 100644
index 000000000000..208ccd969e4b
--- /dev/null
+++ b/include/asm-m68knommu/irq.h
@@ -0,0 +1,128 @@
+#ifndef _M68K_IRQ_H_
+#define _M68K_IRQ_H_
+
+#include <linux/config.h>
+#include <linux/interrupt.h>
+#include <asm/ptrace.h>
+
+#ifdef CONFIG_COLDFIRE
+/*
+ * On the ColdFire we keep track of all vectors. That way drivers
+ * can register whatever vector number they wish, and we can deal
+ * with it.
+ */
+#define SYS_IRQS        256
+#define NR_IRQS         SYS_IRQS
+
+#else
+
+/*
+ * # of m68k interrupts
+ */
+#define SYS_IRQS 8
+#define NR_IRQS (24+SYS_IRQS)
+
+#endif /* CONFIG_COLDFIRE */
+
+/*
+ * Interrupt source definitions
+ * General interrupt sources are the level 1-7.
+ * Adding an interrupt service routine for one of these sources
+ * results in the addition of that routine to a chain of routines.
+ * Each one is called in succession.  Each individual interrupt
+ * service routine should determine if the device associated with
+ * that routine requires service.
+ */
+
+#define IRQ1            (1)     /* level 1 interrupt */
+#define IRQ2            (2)     /* level 2 interrupt */
+#define IRQ3            (3)     /* level 3 interrupt */
+#define IRQ4            (4)     /* level 4 interrupt */
+#define IRQ5            (5)     /* level 5 interrupt */
+#define IRQ6            (6)     /* level 6 interrupt */
+#define IRQ7            (7)     /* level 7 interrupt (non-maskable) */
+
+/*
+ * Machine specific interrupt sources.
+ *
+ * Adding an interrupt service routine for a source with this bit
+ * set indicates a special machine specific interrupt source.
+ * The machine specific files define these sources.
+ *
+ * The IRQ_MACHSPEC bit is now gone - the only thing it did was to
+ * introduce unnecessary overhead.
+ *
+ * All interrupt handling is actually machine specific so it is better
+ * to use function pointers, as used by the Sparc port, and select the
+ * interrupt handling functions when initializing the kernel. This way
+ * we save some unnecessary overhead at run-time. 
+ *                                                      01/11/97 - Jes
+ */
+
+extern void (*mach_enable_irq)(unsigned int);
+extern void (*mach_disable_irq)(unsigned int);
+
+/*
+ * various flags for request_irq() - the Amiga now uses the standard
+ * mechanism like all other architectures - SA_INTERRUPT and SA_SHIRQ
+ * are your friends.
+ */
+#define IRQ_FLG_LOCK    (0x0001)        /* handler is not replaceable   */
+#define IRQ_FLG_REPLACE (0x0002)        /* replace existing handler     */
+#define IRQ_FLG_FAST    (0x0004)
+#define IRQ_FLG_SLOW    (0x0008)
+#define IRQ_FLG_STD     (0x8000)        /* internally used              */
+
+#ifdef CONFIG_M68360
+
+#define CPM_INTERRUPT    IRQ4
+
+/* see MC68360 User's Manual, p. 7-377  */
+#define CPM_VECTOR_BASE  0x04           /* 3 MSbits of CPM vector */
+
+#endif /* CONFIG_M68360 */
+
+/*
+ * This structure is used to chain together the ISRs for a particular
+ * interrupt source (if it supports chaining).
+ */
+typedef struct irq_node {
+        irqreturn_t     (*handler)(int, void *, struct pt_regs *);
+        unsigned long   flags;
+        void            *dev_id;
+        const char      *devname;
+        struct irq_node *next;
+} irq_node_t;
+
+/*
+ * This structure has only 4 elements for speed reasons
+ */
+typedef struct irq_handler {
+        irqreturn_t     (*handler)(int, void *, struct pt_regs *);
+        unsigned long   flags;
+        void            *dev_id;
+        const char      *devname;
+} irq_handler_t;
+
+/* count of spurious interrupts */
+extern volatile unsigned int num_spurious;
+
+/*
+ * This function returns a new irq_node_t
+ */
+extern irq_node_t *new_irq_node(void);
+
+/*
+ * Some drivers want these entry points
+ */
+#define enable_irq(x)   (mach_enable_irq  ? (*mach_enable_irq)(x)  : 0)
+#define disable_irq(x)  (mach_disable_irq ? (*mach_disable_irq)(x) : 0)
+
+#define enable_irq_nosync(x)    enable_irq(x)
+#define disable_irq_nosync(x)   disable_irq(x)
+
+struct irqaction;
+struct pt_regs;
+int handle_IRQ_event(unsigned int, struct pt_regs *, struct irqaction *);
+
+#endif /* _M68K_IRQ_H_ */