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, 280 insertions, 0 deletions

diff --git a/arch/m68knommu/platform/5307/ints.c b/arch/m68knommu/platform/5307/ints.c
new file mode 100644
index 000000000000..0117754d44f3
--- /dev/null
+++ b/arch/m68knommu/platform/5307/ints.c
@@ -0,0 +1,280 @@
+/*
+ * linux/arch/m68knommu/kernel/ints.c -- General interrupt handling code
+ *
+ * Copyright (C) 1999-2002  Greg Ungerer (gerg@snapgear.com)
+ * Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
+ *                     Kenneth Albanowski <kjahds@kjahds.com>,
+ * Copyright (C) 2000  Lineo Inc. (www.lineo.com) 
+ *
+ * Based on:
+ *
+ * linux/arch/m68k/kernel/ints.c -- Linux/m68k general interrupt handling code
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/kernel_stat.h>
+#include <linux/errno.h>
+#include <linux/config.h>
+#include <linux/seq_file.h>
+
+#include <asm/system.h>
+#include <asm/irq.h>
+#include <asm/traps.h>
+#include <asm/page.h>
+#include <asm/machdep.h>
+
+/*
+ *      This table stores the address info for each vector handler.
+ */
+irq_handler_t irq_list[SYS_IRQS];
+
+#define NUM_IRQ_NODES 16
+static irq_node_t nodes[NUM_IRQ_NODES];
+
+/* The number of spurious interrupts */
+volatile unsigned int num_spurious;
+
+unsigned int local_bh_count[NR_CPUS];
+unsigned int local_irq_count[NR_CPUS];
+
+static irqreturn_t default_irq_handler(int irq, void *ptr, struct pt_regs *regs)
+{
+#if 1
+        printk(KERN_INFO "%s(%d): default irq handler vec=%d [0x%x]\n",
+                __FILE__, __LINE__, irq, irq);
+#endif
+        return(IRQ_HANDLED);
+}
+
+/*
+ * void init_IRQ(void)
+ *
+ * Parameters:  None
+ *
+ * Returns:     Nothing
+ *
+ * This function should be called during kernel startup to initialize
+ * the IRQ handling routines.
+ */
+
+void __init init_IRQ(void)
+{
+        int i;
+
+        for (i = 0; i < SYS_IRQS; i++) {
+                if (mach_default_handler)
+                        irq_list[i].handler = (*mach_default_handler)[i];
+                else
+                        irq_list[i].handler = default_irq_handler;
+                irq_list[i].flags   = IRQ_FLG_STD;
+                irq_list[i].dev_id  = NULL;
+                irq_list[i].devname = NULL;
+        }
+
+        for (i = 0; i < NUM_IRQ_NODES; i++)
+                nodes[i].handler = NULL;
+
+        if (mach_init_IRQ)
+                mach_init_IRQ();
+}
+
+irq_node_t *new_irq_node(void)
+{
+        irq_node_t *node;
+        short i;
+
+        for (node = nodes, i = NUM_IRQ_NODES-1; i >= 0; node++, i--)
+                if (!node->handler)
+                        return node;
+
+        printk(KERN_INFO "new_irq_node: out of nodes\n");
+        return NULL;
+}
+
+int request_irq(
+        unsigned int irq,
+        irqreturn_t (*handler)(int, void *, struct pt_regs *),
+        unsigned long flags,
+        const char *devname,
+        void *dev_id)
+{
+        if (irq < 0 || irq >= NR_IRQS) {
+                printk(KERN_WARNING "%s: Incorrect IRQ %d from %s\n", __FUNCTION__,
+                        irq, devname);
+                return -ENXIO;
+        }
+
+        if (!(irq_list[irq].flags & IRQ_FLG_STD)) {
+                if (irq_list[irq].flags & IRQ_FLG_LOCK) {
+                        printk(KERN_WARNING "%s: IRQ %d from %s is not replaceable\n",
+                               __FUNCTION__, irq, irq_list[irq].devname);
+                        return -EBUSY;
+                }
+                if (flags & IRQ_FLG_REPLACE) {
+                        printk(KERN_WARNING "%s: %s can't replace IRQ %d from %s\n",
+                               __FUNCTION__, devname, irq, irq_list[irq].devname);
+                        return -EBUSY;
+                }
+        }
+
+        if (flags & IRQ_FLG_FAST) {
+                extern asmlinkage void fasthandler(void);
+                extern void set_evector(int vecnum, void (*handler)(void));
+                set_evector(irq, fasthandler);
+        }
+
+        irq_list[irq].handler = handler;
+        irq_list[irq].flags   = flags;
+        irq_list[irq].dev_id  = dev_id;
+        irq_list[irq].devname = devname;
+        return 0;
+}
+
+EXPORT_SYMBOL(request_irq);
+
+void free_irq(unsigned int irq, void *dev_id)
+{
+        if (irq >= NR_IRQS) {
+                printk(KERN_WARNING "%s: Incorrect IRQ %d\n", __FUNCTION__, irq);
+                return;
+        }
+
+        if (irq_list[irq].dev_id != dev_id)
+                printk(KERN_WARNING "%s: Removing probably wrong IRQ %d from %s\n",
+                       __FUNCTION__, irq, irq_list[irq].devname);
+
+        if (irq_list[irq].flags & IRQ_FLG_FAST) {
+                extern asmlinkage void inthandler(void);
+                extern void set_evector(int vecnum, void (*handler)(void));
+                set_evector(irq, inthandler);
+        }
+
+        if (mach_default_handler)
+                irq_list[irq].handler = (*mach_default_handler)[irq];
+        else
+                irq_list[irq].handler = default_irq_handler;
+        irq_list[irq].flags   = IRQ_FLG_STD;
+        irq_list[irq].dev_id  = NULL;
+        irq_list[irq].devname = NULL;
+}
+
+EXPORT_SYMBOL(free_irq);
+
+
+int sys_request_irq(unsigned int irq, 
+                    irqreturn_t (*handler)(int, void *, struct pt_regs *), 
+                    unsigned long flags, const char *devname, void *dev_id)
+{
+        if (irq > IRQ7) {
+                printk(KERN_WARNING "%s: Incorrect IRQ %d from %s\n",
+                       __FUNCTION__, irq, devname);
+                return -ENXIO;
+        }
+
+#if 0
+        if (!(irq_list[irq].flags & IRQ_FLG_STD)) {
+                if (irq_list[irq].flags & IRQ_FLG_LOCK) {
+                        printk(KERN_WARNING "%s: IRQ %d from %s is not replaceable\n",
+                               __FUNCTION__, irq, irq_list[irq].devname);
+                        return -EBUSY;
+                }
+                if (!(flags & IRQ_FLG_REPLACE)) {
+                        printk(KERN_WARNING "%s: %s can't replace IRQ %d from %s\n",
+                               __FUNCTION__, devname, irq, irq_list[irq].devname);
+                        return -EBUSY;
+                }
+        }
+#endif
+
+        irq_list[irq].handler = handler;
+        irq_list[irq].flags   = flags;
+        irq_list[irq].dev_id  = dev_id;
+        irq_list[irq].devname = devname;
+        return 0;
+}
+
+void sys_free_irq(unsigned int irq, void *dev_id)
+{
+        if (irq > IRQ7) {
+                printk(KERN_WARNING "%s: Incorrect IRQ %d\n", __FUNCTION__, irq);
+                return;
+        }
+
+        if (irq_list[irq].dev_id != dev_id)
+                printk(KERN_WARNING "%s: Removing probably wrong IRQ %d from %s\n",
+                       __FUNCTION__, irq, irq_list[irq].devname);
+
+        irq_list[irq].handler = (*mach_default_handler)[irq];
+        irq_list[irq].flags   = 0;
+        irq_list[irq].dev_id  = NULL;
+        irq_list[irq].devname = NULL;
+}
+
+/*
+ * Do we need these probe functions on the m68k?
+ *
+ *  ... may be useful with ISA devices
+ */
+unsigned long probe_irq_on (void)
+{
+        return 0;
+}
+
+EXPORT_SYMBOL(probe_irq_on);
+
+int probe_irq_off (unsigned long irqs)
+{
+        return 0;
+}
+
+EXPORT_SYMBOL(probe_irq_off);
+
+asmlinkage void process_int(unsigned long vec, struct pt_regs *fp)
+{
+        if (vec >= VEC_INT1 && vec <= VEC_INT7) {
+                vec -= VEC_SPUR;
+                kstat_cpu(0).irqs[vec]++;
+                irq_list[vec].handler(vec, irq_list[vec].dev_id, fp);
+        } else {
+                if (mach_process_int)
+                        mach_process_int(vec, fp);
+                else
+                        panic("Can't process interrupt vector %ld\n", vec);
+                return;
+        }
+}
+
+
+int show_interrupts(struct seq_file *p, void *v)
+{
+        int i = *(loff_t *) v;
+
+        if (i < NR_IRQS) {
+                if (! (irq_list[i].flags & IRQ_FLG_STD)) {
+                        seq_printf(p, "%3d: %10u ", i,
+                                (i ? kstat_cpu(0).irqs[i] : num_spurious));
+                        if (irq_list[i].flags & IRQ_FLG_LOCK)
+                                seq_printf(p, "L ");
+                        else
+                                seq_printf(p, "  ");
+                        seq_printf(p, "%s\n", irq_list[i].devname);
+                }
+        }
+
+        if (i == NR_IRQS && mach_get_irq_list)
+                mach_get_irq_list(p, v);
+        return 0;
+}
+
+void init_irq_proc(void)
+{
+        /* Insert /proc/irq driver here */
+}
+