[PATCH] m68k: convert mac irq code

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

12 files changed, 159 insertions, 425 deletions

diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c
index b19b7dd9bd21..6eaa881793d1 100644
--- a/arch/m68k/mac/baboon.c
+++ b/arch/m68k/mac/baboon.c
@@ -81,7 +81,7 @@ irqreturn_t baboon_irq(int irq, void *dev_id, struct pt_regs *regs)
         for (i = 0, irq_bit = 1 ; i < 3 ; i++, irq_bit <<= 1) {
                 if (events & irq_bit/* & baboon_active*/) {
                         baboon_active &= ~irq_bit;
-                        mac_do_irq_list(IRQ_BABOON_0 + i, regs);
+                        m68k_handle_int(IRQ_BABOON_0 + i, regs);
                         baboon_active |= irq_bit;
                         baboon->mb_ifr &= ~irq_bit;
                 }
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 7e04f2a695c0..5a9990e436bb 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -169,12 +169,7 @@ void __init config_mac(void)
 
         mach_sched_init      = mac_sched_init;
         mach_init_IRQ        = mac_init_IRQ;
-        mach_request_irq     = mac_request_irq;
-        mach_free_irq        = mac_free_irq;
-        enable_irq           = mac_enable_irq;
-        disable_irq          = mac_disable_irq;
         mach_get_model   = mac_get_model;
-        mach_get_irq_list    = show_mac_interrupts;
         mach_gettimeoffset   = mac_gettimeoffset;
 #warning move to adb/via init
 #if 0
diff --git a/arch/m68k/mac/iop.c b/arch/m68k/mac/iop.c
index 9179a3798407..4c8ece7e64a3 100644
--- a/arch/m68k/mac/iop.c
+++ b/arch/m68k/mac/iop.c
@@ -317,7 +317,7 @@ void __init iop_register_interrupts(void)
 {
         if (iop_ism_present) {
                 if (oss_present) {
-                        cpu_request_irq(OSS_IRQLEV_IOPISM, iop_ism_irq,
+                        request_irq(OSS_IRQLEV_IOPISM, iop_ism_irq,
                                         IRQ_FLG_LOCK, "ISM IOP",
                                         (void *) IOP_NUM_ISM);
                         oss_irq_enable(IRQ_MAC_ADB);
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c
index 73b39cd3f94c..694b14bb0de1 100644
--- a/arch/m68k/mac/macints.c
+++ b/arch/m68k/mac/macints.c
@@ -137,14 +137,6 @@
 #define DEBUG_SPURIOUS
 #define SHUTUP_SONIC
 
-/*
- * The mac_irq_list array is an array of linked lists of irq_node_t nodes.
- * Each node contains one handler to be called whenever the interrupt
- * occurs, with fast handlers listed before slow handlers.
- */
-
-irq_node_t *mac_irq_list[NUM_MAC_SOURCES];
-
 /* SCC interrupt mask */
 
 static int scc_mask;
@@ -209,8 +201,8 @@ extern int  baboon_irq_pending(int);
  * SCC interrupt routines
  */
 
-static void scc_irq_enable(int);
-static void scc_irq_disable(int);
+static void scc_irq_enable(unsigned int);
+static void scc_irq_disable(unsigned int);
 
 /*
  * console_loglevel determines NMI handler function
@@ -221,21 +213,25 @@ irqreturn_t mac_debug_handler(int, void *, struct pt_regs *);
 
 /* #define DEBUG_MACINTS */
 
+static void mac_enable_irq(unsigned int irq);
+static void mac_disable_irq(unsigned int irq);
+
+static struct irq_controller mac_irq_controller = {
+        .name           = "mac",
+        .lock           = SPIN_LOCK_UNLOCKED,
+        .enable         = mac_enable_irq,
+        .disable        = mac_disable_irq,
+};
+
 void mac_init_IRQ(void)
 {
-        int i;
-
 #ifdef DEBUG_MACINTS
         printk("mac_init_IRQ(): Setting things up...\n");
 #endif
-        /* Initialize the IRQ handler lists. Initially each list is empty, */
-
-        for (i = 0; i < NUM_MAC_SOURCES; i++) {
-                mac_irq_list[i] = NULL;
-        }
-
         scc_mask = 0;
 
+        m68k_setup_irq_controller(&mac_irq_controller, IRQ_USER,
+                                  NUM_MAC_SOURCES - IRQ_USER);
         /* Make sure the SONIC interrupt is cleared or things get ugly */
 #ifdef SHUTUP_SONIC
         printk("Killing onboard sonic... ");
@@ -252,15 +248,16 @@ void mac_init_IRQ(void)
          * at levels 1-7. Most of the work is done elsewhere.
          */
 
-        if (oss_present) {
+        if (oss_present)
                 oss_register_interrupts();
-        } else {
+        else
                 via_register_interrupts();
-        }
-        if (psc_present) psc_register_interrupts();
-        if (baboon_present) baboon_register_interrupts();
+        if (psc_present)
+                psc_register_interrupts();
+        if (baboon_present)
+                baboon_register_interrupts();
         iop_register_interrupts();
-        cpu_request_irq(7, mac_nmi_handler, IRQ_FLG_LOCK, "NMI",
+        request_irq(IRQ_AUTO_7, mac_nmi_handler, 0, "NMI",
                         mac_nmi_handler);
 #ifdef DEBUG_MACINTS
         printk("mac_init_IRQ(): Done!\n");
@@ -268,104 +265,6 @@ void mac_init_IRQ(void)
 }
 
 /*
- * Routines to work with irq_node_t's on linked lists lifted from
- * the Amiga code written by Roman Zippel.
- */
-
-static inline void mac_insert_irq(irq_node_t **list, irq_node_t *node)
-{
-        unsigned long flags;
-        irq_node_t *cur;
-
-        if (!node->dev_id)
-                printk("%s: Warning: dev_id of %s is zero\n",
-                       __FUNCTION__, node->devname);
-
-        local_irq_save(flags);
-
-        cur = *list;
-
-        if (node->flags & IRQ_FLG_FAST) {
-                node->flags &= ~IRQ_FLG_SLOW;
-                while (cur && cur->flags & IRQ_FLG_FAST) {
-                        list = &cur->next;
-                        cur = cur->next;
-                }
-        } else if (node->flags & IRQ_FLG_SLOW) {
-                while (cur) {
-                        list = &cur->next;
-                        cur = cur->next;
-                }
-        } else {
-                while (cur && !(cur->flags & IRQ_FLG_SLOW)) {
-                        list = &cur->next;
-                        cur = cur->next;
-                }
-        }
-
-        node->next = cur;
-        *list = node;
-
-        local_irq_restore(flags);
-}
-
-static inline void mac_delete_irq(irq_node_t **list, void *dev_id)
-{
-        unsigned long flags;
-        irq_node_t *node;
-
-        local_irq_save(flags);
-
-        for (node = *list; node; list = &node->next, node = *list) {
-                if (node->dev_id == dev_id) {
-                        *list = node->next;
-                        /* Mark it as free. */
-                        node->handler = NULL;
-                        local_irq_restore(flags);
-                        return;
-                }
-        }
-        local_irq_restore(flags);
-        printk ("%s: tried to remove invalid irq\n", __FUNCTION__);
-}
-
-/*
- * Call all the handlers for a given interrupt. Fast handlers are called
- * first followed by slow handlers.
- *
- * This code taken from the original Amiga code written by Roman Zippel.
- */
-
-void mac_do_irq_list(int irq, struct pt_regs *fp)
-{
-        irq_node_t *node, *slow_nodes;
-        unsigned long flags;
-
-        kstat_cpu(0).irqs[irq]++;
-
-#ifdef DEBUG_SPURIOUS
-        if (!mac_irq_list[irq] && (console_loglevel > 7)) {
-                printk("mac_do_irq_list: spurious interrupt %d!\n", irq);
-                return;
-        }
-#endif
-
-        /* serve first fast and normal handlers */
-        for (node = mac_irq_list[irq];
-             node && (!(node->flags & IRQ_FLG_SLOW));
-             node = node->next)
-                node->handler(irq, node->dev_id, fp);
-        if (!node) return;
-        local_save_flags(flags);
-        local_irq_restore((flags & ~0x0700) | (fp->sr & 0x0700));
-        /* if slow handlers exists, serve them now */
-        slow_nodes = node;
-        for (; node; node = node->next) {
-                node->handler(irq, node->dev_id, fp);
-        }
-}
-
-/*
  *  mac_enable_irq - enable an interrupt source
  * mac_disable_irq - disable an interrupt source
  *   mac_clear_irq - clears a pending interrupt
@@ -374,265 +273,120 @@ void mac_do_irq_list(int irq, struct pt_regs *fp)
  * These routines are just dispatchers to the VIA/OSS/PSC routines.
  */
 
-void mac_enable_irq (unsigned int irq)
+static void mac_enable_irq(unsigned int irq)
 {
-        int irq_src     = IRQ_SRC(irq);
+        int irq_src = IRQ_SRC(irq);
 
         switch(irq_src) {
-                case 1: via_irq_enable(irq);
-                        break;
-                case 2:
-                case 7: if (oss_present) {
-                                oss_irq_enable(irq);
-                        } else {
-                                via_irq_enable(irq);
-                        }
-                        break;
-                case 3:
-                case 4:
-                case 5:
-                case 6: if (psc_present) {
-                                psc_irq_enable(irq);
-                        } else if (oss_present) {
-                                oss_irq_enable(irq);
-                        } else if (irq_src == 4) {
-                                scc_irq_enable(irq);
-                        }
-                        break;
-                case 8: if (baboon_present) {
-                                baboon_irq_enable(irq);
-                        }
-                        break;
+        case 1:
+                via_irq_enable(irq);
+                break;
+        case 2:
+        case 7:
+                if (oss_present)
+                        oss_irq_enable(irq);
+                else
+                        via_irq_enable(irq);
+                break;
+        case 3:
+        case 4:
+        case 5:
+        case 6:
+                if (psc_present)
+                        psc_irq_enable(irq);
+                else if (oss_present)
+                        oss_irq_enable(irq);
+                else if (irq_src == 4)
+                        scc_irq_enable(irq);
+                break;
+        case 8:
+                if (baboon_present)
+                        baboon_irq_enable(irq);
+                break;
         }
 }
 
-void mac_disable_irq (unsigned int irq)
+static void mac_disable_irq(unsigned int irq)
 {
-        int irq_src     = IRQ_SRC(irq);
+        int irq_src = IRQ_SRC(irq);
 
         switch(irq_src) {
-                case 1: via_irq_disable(irq);
-                        break;
-                case 2:
-                case 7: if (oss_present) {
-                                oss_irq_disable(irq);
-                        } else {
-                                via_irq_disable(irq);
-                        }
-                        break;
-                case 3:
-                case 4:
-                case 5:
-                case 6: if (psc_present) {
-                                psc_irq_disable(irq);
-                        } else if (oss_present) {
-                                oss_irq_disable(irq);
-                        } else if (irq_src == 4) {
-                                scc_irq_disable(irq);
-                        }
-                        break;
-                case 8: if (baboon_present) {
-                                baboon_irq_disable(irq);
-                        }
-                        break;
+        case 1:
+                via_irq_disable(irq);
+                break;
+        case 2:
+        case 7:
+                if (oss_present)
+                        oss_irq_disable(irq);
+                else
+                        via_irq_disable(irq);
+                break;
+        case 3:
+        case 4:
+        case 5:
+        case 6:
+                if (psc_present)
+                        psc_irq_disable(irq);
+                else if (oss_present)
+                        oss_irq_disable(irq);
+                else if (irq_src == 4)
+                        scc_irq_disable(irq);
+                break;
+        case 8:
+                if (baboon_present)
+                        baboon_irq_disable(irq);
+                break;
         }
 }
 
-void mac_clear_irq( unsigned int irq )
+void mac_clear_irq(unsigned int irq)
 {
         switch(IRQ_SRC(irq)) {
-                case 1: via_irq_clear(irq);
-                        break;
-                case 2:
-                case 7: if (oss_present) {
-                                oss_irq_clear(irq);
-                        } else {
-                                via_irq_clear(irq);
-                        }
-                        break;
-                case 3:
-                case 4:
-                case 5:
-                case 6: if (psc_present) {
-                                psc_irq_clear(irq);
-                        } else if (oss_present) {
-                                oss_irq_clear(irq);
-                        }
-                        break;
-                case 8: if (baboon_present) {
-                                baboon_irq_clear(irq);
-                        }
-                        break;
+        case 1:
+                via_irq_clear(irq);
+                break;
+        case 2:
+        case 7:
+                if (oss_present)
+                        oss_irq_clear(irq);
+                else
+                        via_irq_clear(irq);
+                break;
+        case 3:
+        case 4:
+        case 5:
+        case 6:
+                if (psc_present)
+                        psc_irq_clear(irq);
+                else if (oss_present)
+                        oss_irq_clear(irq);
+                break;
+        case 8:
+                if (baboon_present)
+                        baboon_irq_clear(irq);
+                break;
         }
 }
 
-int mac_irq_pending( unsigned int irq )
+int mac_irq_pending(unsigned int irq)
 {
         switch(IRQ_SRC(irq)) {
-                case 1: return via_irq_pending(irq);
-                case 2:
-                case 7: if (oss_present) {
-                                return oss_irq_pending(irq);
-                        } else {
-                                return via_irq_pending(irq);
-                        }
-                case 3:
-                case 4:
-                case 5:
-                case 6: if (psc_present) {
-                                return psc_irq_pending(irq);
-                        } else if (oss_present) {
-                                return oss_irq_pending(irq);
-                        }
-        }
-        return 0;
-}
-
-/*
- * Add an interrupt service routine to an interrupt source.
- * Returns 0 on success.
- *
- * FIXME: You can register interrupts on nonexistent source (ie PSC4 on a
- *        non-PSC machine). We should return -EINVAL in those cases.
- */
-
-int mac_request_irq(unsigned int irq,
-                    irqreturn_t (*handler)(int, void *, struct pt_regs *),
-                    unsigned long flags, const char *devname, void *dev_id)
-{
-        irq_node_t *node;
-
-#ifdef DEBUG_MACINTS
-        printk ("%s: irq %d requested for %s\n", __FUNCTION__, irq, devname);
-#endif
-
-        if (irq < VIA1_SOURCE_BASE) {
-                return cpu_request_irq(irq, handler, flags, devname, dev_id);
-        }
-
-        if (irq >= NUM_MAC_SOURCES) {
-                printk ("%s: unknown irq %d requested by %s\n",
-                        __FUNCTION__, irq, devname);
-        }
-
-        /* Get a node and stick it onto the right list */
-
-        if (!(node = new_irq_node())) return -ENOMEM;
-
-        node->handler   = handler;
-        node->flags     = flags;
-        node->dev_id    = dev_id;
-        node->devname   = devname;
-        node->next      = NULL;
-        mac_insert_irq(&mac_irq_list[irq], node);
-
-        /* Now enable the IRQ source */
-
-        mac_enable_irq(irq);
-
-        return 0;
-}
-
-/*
- * Removes an interrupt service routine from an interrupt source.
- */
-
-void mac_free_irq(unsigned int irq, void *dev_id)
-{
-#ifdef DEBUG_MACINTS
-        printk ("%s: irq %d freed by %p\n", __FUNCTION__, irq, dev_id);
-#endif
-
-        if (irq < VIA1_SOURCE_BASE) {
-                cpu_free_irq(irq, dev_id);
-                return;
-        }
-
-        if (irq >= NUM_MAC_SOURCES) {
-                printk ("%s: unknown irq %d freed\n",
-                        __FUNCTION__, irq);
-                return;
-        }
-
-        mac_delete_irq(&mac_irq_list[irq], dev_id);
-
-        /* If the list for this interrupt is */
-        /* empty then disable the source.    */
-
-        if (!mac_irq_list[irq]) {
-                mac_disable_irq(irq);
-        }
-}
-
-/*
- * Generate a pretty listing for /proc/interrupts
- *
- * By the time we're called the autovector interrupt list has already been
- * generated, so we just need to do the machspec interrupts.
- *
- * 990506 (jmt) - rewritten to handle chained machspec interrupt handlers.
- *                Also removed display of num_spurious it is already
- *                displayed for us as autovector irq 0.
- */
-
-int show_mac_interrupts(struct seq_file *p, void *v)
-{
-        int i;
-        irq_node_t *node;
-        char *base;
-
-        /* Don't do Nubus interrupts in this loop; we do them separately  */
-        /* below so that we can print slot numbers instead of IRQ numbers */
-
-        for (i = VIA1_SOURCE_BASE ; i < NUM_MAC_SOURCES ; ++i) {
-
-                /* Nonexistant interrupt or nothing registered; skip it. */
-
-                if ((node = mac_irq_list[i]) == NULL) continue;
-                if (node->flags & IRQ_FLG_STD) continue;
-
-                base = "";
-                switch(IRQ_SRC(i)) {
-                        case 1: base = "via1";
-                                break;
-                        case 2: if (oss_present) {
-                                        base = "oss";
-                                } else {
-                                        base = "via2";
-                                }
-                                break;
-                        case 3:
-                        case 4:
-                        case 5:
-                        case 6: if (psc_present) {
-                                        base = "psc";
-                                } else if (oss_present) {
-                                        base = "oss";
-                                } else {
-                                        if (IRQ_SRC(i) == 4) base = "scc";
-                                }
-                                break;
-                        case 7: base = "nbus";
-                                break;
-                        case 8: base = "bbn";
-                                break;
-                }
-                seq_printf(p, "%4s %2d: %10u ", base, i, kstat_cpu(0).irqs[i]);
-
-                do {
-                        if (node->flags & IRQ_FLG_FAST) {
-                                seq_puts(p, "F ");
-                        } else if (node->flags & IRQ_FLG_SLOW) {
-                                seq_puts(p, "S ");
-                        } else {
-                                seq_puts(p, "  ");
-                        }
-                        seq_printf(p, "%s\n", node->devname);
-                        if ((node = node->next)) {
-                                seq_puts(p, "                    ");
-                        }
-                } while(node);
-
+        case 1:
+                return via_irq_pending(irq);
+        case 2:
+        case 7:
+                if (oss_present)
+                        return oss_irq_pending(irq);
+                else
+                        return via_irq_pending(irq);
+        case 3:
+        case 4:
+        case 5:
+        case 6:
+                if (psc_present)
+                        return psc_irq_pending(irq);
+                else if (oss_present)
+                        return oss_irq_pending(irq);
         }
         return 0;
 }
@@ -676,7 +430,7 @@ irqreturn_t mac_nmi_handler(int irq, void *dev_id, struct pt_regs *fp)
         while (nmi_hold == 1)
                 udelay(1000);
 
-        if ( console_loglevel >= 8 ) {
+        if (console_loglevel >= 8) {
 #if 0
                 show_state();
                 printk("PC: %08lx\nSR: %04x  SP: %p\n", fp->pc, fp->sr, fp);
@@ -705,14 +459,16 @@ irqreturn_t mac_nmi_handler(int irq, void *dev_id, struct pt_regs *fp)
  * done in hardware (only the PSC can do that.)
  */
 
-static void scc_irq_enable(int irq) {
-        int irq_idx     = IRQ_IDX(irq);
+static void scc_irq_enable(unsigned int irq)
+{
+        int irq_idx = IRQ_IDX(irq);
 
         scc_mask |= (1 << irq_idx);
 }
 
-static void scc_irq_disable(int irq) {
-        int irq_idx     = IRQ_IDX(irq);
+static void scc_irq_disable(unsigned int irq)
+{
+        int irq_idx = IRQ_IDX(irq);
 
         scc_mask &= ~(1 << irq_idx);
 }
@@ -747,6 +503,8 @@ void mac_scc_dispatch(int irq, void *dev_id, struct pt_regs *regs)
         /* and since they're autovector interrupts they */
         /* pretty much kill the system.                 */
 
-        if (reg & 0x38) mac_do_irq_list(IRQ_SCCA, regs);
-        if (reg & 0x07) mac_do_irq_list(IRQ_SCCB, regs);
+        if (reg & 0x38)
+                m68k_handle_int(IRQ_SCCA, regs);
+        if (reg & 0x07)
+                m68k_handle_int(IRQ_SCCB, regs);
 }
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index 333547692724..63e04365191f 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -67,15 +67,15 @@ void __init oss_init(void)
 
 void __init oss_register_interrupts(void)
 {
-        cpu_request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK,
+        request_irq(OSS_IRQLEV_SCSI, oss_irq, IRQ_FLG_LOCK,
                         "scsi", (void *) oss);
-        cpu_request_irq(OSS_IRQLEV_IOPSCC, mac_scc_dispatch, IRQ_FLG_LOCK,
+        request_irq(OSS_IRQLEV_IOPSCC, mac_scc_dispatch, IRQ_FLG_LOCK,
                         "scc", mac_scc_dispatch);
-        cpu_request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK,
+        request_irq(OSS_IRQLEV_NUBUS, oss_nubus_irq, IRQ_FLG_LOCK,
                         "nubus", (void *) oss);
-        cpu_request_irq(OSS_IRQLEV_SOUND, oss_irq, IRQ_FLG_LOCK,
+        request_irq(OSS_IRQLEV_SOUND, oss_irq, IRQ_FLG_LOCK,
                         "sound", (void *) oss);
-        cpu_request_irq(OSS_IRQLEV_VIA1, via1_irq, IRQ_FLG_LOCK,
+        request_irq(OSS_IRQLEV_VIA1, via1_irq, IRQ_FLG_LOCK,
                         "via1", (void *) via1);
 }
 
@@ -113,7 +113,7 @@ irqreturn_t oss_irq(int irq, void *dev_id, struct pt_regs *regs)
                 oss->irq_pending &= ~OSS_IP_SOUND;
         } else if (events & OSS_IP_SCSI) {
                 oss->irq_level[OSS_SCSI] = OSS_IRQLEV_DISABLED;
-                mac_do_irq_list(IRQ_MAC_SCSI, regs);
+                m68k_handle_int(IRQ_MAC_SCSI, regs);
                 oss->irq_pending &= ~OSS_IP_SCSI;
                 oss->irq_level[OSS_SCSI] = OSS_IRQLEV_SCSI;
         } else {
@@ -146,7 +146,7 @@ irqreturn_t oss_nubus_irq(int irq, void *dev_id, struct pt_regs *regs)
         for (i = 0, irq_bit = 1 ; i < 6 ; i++, irq_bit <<= 1) {
                 if (events & irq_bit) {
                         oss->irq_level[i] = OSS_IRQLEV_DISABLED;
-                        mac_do_irq_list(NUBUS_SOURCE_BASE + i, regs);
+                        m68k_handle_int(NUBUS_SOURCE_BASE + i, regs);
                         oss->irq_pending &= ~irq_bit;
                         oss->irq_level[i] = OSS_IRQLEV_NUBUS;
                 }
diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c
index e72384e43a1e..e26218091755 100644
--- a/arch/m68k/mac/psc.c
+++ b/arch/m68k/mac/psc.c
@@ -117,10 +117,10 @@ void __init psc_init(void)
 
 void __init psc_register_interrupts(void)
 {
-        cpu_request_irq(3, psc_irq, IRQ_FLG_LOCK, "psc3", (void *) 0x30);
-        cpu_request_irq(4, psc_irq, IRQ_FLG_LOCK, "psc4", (void *) 0x40);
-        cpu_request_irq(5, psc_irq, IRQ_FLG_LOCK, "psc5", (void *) 0x50);
-        cpu_request_irq(6, psc_irq, IRQ_FLG_LOCK, "psc6", (void *) 0x60);
+        request_irq(IRQ_AUTO_3, psc_irq, 0, "psc3", (void *) 0x30);
+        request_irq(IRQ_AUTO_4, psc_irq, 0, "psc4", (void *) 0x40);
+        request_irq(IRQ_AUTO_5, psc_irq, 0, "psc5", (void *) 0x50);
+        request_irq(IRQ_AUTO_6, psc_irq, 0, "psc6", (void *) 0x60);
 }
 
 /*
@@ -149,7 +149,7 @@ irqreturn_t psc_irq(int irq, void *dev_id, struct pt_regs *regs)
         for (i = 0, irq_bit = 1 ; i < 4 ; i++, irq_bit <<= 1) {
                 if (events & irq_bit) {
                         psc_write_byte(pIER, irq_bit);
-                        mac_do_irq_list(base_irq + i, regs);
+                        m68k_handle_int(base_irq + i, regs);
                         psc_write_byte(pIFR, irq_bit);
                         psc_write_byte(pIER, irq_bit | 0x80);
                 }
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index a6e3814c8666..c4aa345d544e 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -253,21 +253,21 @@ void __init via_init_clock(irqreturn_t (*func)(int, void *, struct pt_regs *))
 void __init via_register_interrupts(void)
 {
         if (via_alt_mapping) {
-                cpu_request_irq(IRQ_AUTO_1, via1_irq,
+                request_irq(IRQ_AUTO_1, via1_irq,
                                 IRQ_FLG_LOCK|IRQ_FLG_FAST, "software",
                                 (void *) via1);
-                cpu_request_irq(IRQ_AUTO_6, via1_irq,
+                request_irq(IRQ_AUTO_6, via1_irq,
                                 IRQ_FLG_LOCK|IRQ_FLG_FAST, "via1",
                                 (void *) via1);
         } else {
-                cpu_request_irq(IRQ_AUTO_1, via1_irq,
+                request_irq(IRQ_AUTO_1, via1_irq,
                                 IRQ_FLG_LOCK|IRQ_FLG_FAST, "via1",
                                 (void *) via1);
         }
-        cpu_request_irq(IRQ_AUTO_2, via2_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST,
+        request_irq(IRQ_AUTO_2, via2_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST,
                         "via2", (void *) via2);
         if (!psc_present) {
-                cpu_request_irq(IRQ_AUTO_4, mac_scc_dispatch, IRQ_FLG_LOCK,
+                request_irq(IRQ_AUTO_4, mac_scc_dispatch, IRQ_FLG_LOCK,
                                 "scc", mac_scc_dispatch);
         }
         request_irq(IRQ_MAC_NUBUS, via_nubus_irq, IRQ_FLG_LOCK|IRQ_FLG_FAST,
@@ -424,7 +424,7 @@ irqreturn_t via1_irq(int irq, void *dev_id, struct pt_regs *regs)
         for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1)
                 if (events & irq_bit) {
                         via1[vIER] = irq_bit;
-                        mac_do_irq_list(VIA1_SOURCE_BASE + i, regs);
+                        m68k_handle_int(VIA1_SOURCE_BASE + i, regs);
                         via1[vIFR] = irq_bit;
                         via1[vIER] = irq_bit | 0x80;
                 }
@@ -439,7 +439,7 @@ irqreturn_t via1_irq(int irq, void *dev_id, struct pt_regs *regs)
                 /* No, it won't be set. that's why we're doing this. */
                 via_irq_disable(IRQ_MAC_NUBUS);
                 via_irq_clear(IRQ_MAC_NUBUS);
-                mac_do_irq_list(IRQ_MAC_NUBUS, regs);
+                m68k_handle_int(IRQ_MAC_NUBUS, regs);
                 via_irq_enable(IRQ_MAC_NUBUS);
         }
 #endif
@@ -459,7 +459,7 @@ irqreturn_t via2_irq(int irq, void *dev_id, struct pt_regs *regs)
                 if (events & irq_bit) {
                         via2[gIER] = irq_bit;
                         via2[gIFR] = irq_bit | rbv_clear;
-                        mac_do_irq_list(VIA2_SOURCE_BASE + i, regs);
+                        m68k_handle_int(VIA2_SOURCE_BASE + i, regs);
                         via2[gIER] = irq_bit | 0x80;
                 }
         return IRQ_HANDLED;
@@ -481,7 +481,7 @@ irqreturn_t via_nubus_irq(int irq, void *dev_id, struct pt_regs *regs)
         for (i = 0, irq_bit = 1 ; i < 7 ; i++, irq_bit <<= 1) {
                 if (events & irq_bit) {
                         via_irq_disable(NUBUS_SOURCE_BASE + i);
-                        mac_do_irq_list(NUBUS_SOURCE_BASE + i, regs);
+                        m68k_handle_int(NUBUS_SOURCE_BASE + i, regs);
                         via_irq_enable(NUBUS_SOURCE_BASE + i);
                 }
         }
diff --git a/drivers/scsi/mac_esp.c b/drivers/scsi/mac_esp.c
index e31fadd61904..118206d68c6c 100644
--- a/drivers/scsi/mac_esp.c
+++ b/drivers/scsi/mac_esp.c
@@ -43,9 +43,6 @@
 
 /* #define DEBUG_MAC_ESP */
 
-#define mac_turnon_irq(x)       mac_enable_irq(x)
-#define mac_turnoff_irq(x)      mac_disable_irq(x)
-
 extern void esp_handle(struct NCR_ESP *esp);
 extern void mac_esp_intr(int irq, void *dev_id, struct pt_regs *pregs);
 
@@ -639,13 +636,13 @@ static void dma_init_write(struct NCR_ESP * esp, char * vaddress, int length)
 
 static void dma_ints_off(struct NCR_ESP * esp)
 {
-        mac_turnoff_irq(esp->irq);
+        disable_irq(esp->irq);
 }
 
 
 static void dma_ints_on(struct NCR_ESP * esp)
 {
-        mac_turnon_irq(esp->irq);
+        enable_irq(esp->irq);
 }
 
 /*
diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c
index 777f9bcd1179..a942a21dd87e 100644
--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -65,9 +65,6 @@
 #define RESET_BOOT
 #define DRIVER_SETUP
 
-#define ENABLE_IRQ()    mac_enable_irq( IRQ_MAC_SCSI ); 
-#define DISABLE_IRQ()   mac_disable_irq( IRQ_MAC_SCSI );
-
 extern void via_scsi_clear(void);
 
 #ifdef RESET_BOOT
@@ -351,7 +348,7 @@ static void mac_scsi_reset_boot(struct Scsi_Host *instance)
         printk(KERN_INFO "Macintosh SCSI: resetting the SCSI bus..." );
 
         /* switch off SCSI IRQ - catch an interrupt without IRQ bit set else */
-        mac_disable_irq(IRQ_MAC_SCSI);
+        disable_irq(IRQ_MAC_SCSI);
 
         /* get in phase */
         NCR5380_write( TARGET_COMMAND_REG,
@@ -369,7 +366,7 @@ static void mac_scsi_reset_boot(struct Scsi_Host *instance)
                 barrier();
 
         /* switch on SCSI IRQ again */
-        mac_enable_irq(IRQ_MAC_SCSI);
+        enable_irq(IRQ_MAC_SCSI);
 
         printk(KERN_INFO " done\n" );
 }
diff --git a/include/asm-m68k/mac_oss.h b/include/asm-m68k/mac_oss.h
index 7644a639cd6c..7221f7251934 100644
--- a/include/asm-m68k/mac_oss.h
+++ b/include/asm-m68k/mac_oss.h
@@ -69,12 +69,12 @@
 
 #define OSS_IRQLEV_DISABLED     0
 #define OSS_IRQLEV_IOPISM       1       /* ADB? */
-#define OSS_IRQLEV_SCSI         2
-#define OSS_IRQLEV_NUBUS        3       /* keep this on its own level */
-#define OSS_IRQLEV_IOPSCC       4       /* matches VIA alternate mapping */
-#define OSS_IRQLEV_SOUND        5       /* matches VIA alternate mapping */
+#define OSS_IRQLEV_SCSI         IRQ_AUTO_2
+#define OSS_IRQLEV_NUBUS        IRQ_AUTO_3      /* keep this on its own level */
+#define OSS_IRQLEV_IOPSCC       IRQ_AUTO_4      /* matches VIA alternate mapping */
+#define OSS_IRQLEV_SOUND        IRQ_AUTO_5      /* matches VIA alternate mapping */
 #define OSS_IRQLEV_60HZ         6       /* matches VIA alternate mapping */
-#define OSS_IRQLEV_VIA1         6       /* matches VIA alternate mapping */
+#define OSS_IRQLEV_VIA1         IRQ_AUTO_6      /* matches VIA alternate mapping */
 #define OSS_IRQLEV_PARITY       7       /* matches VIA alternate mapping */
 
 #ifndef __ASSEMBLY__
diff --git a/include/asm-m68k/macintosh.h b/include/asm-m68k/macintosh.h
index 6fc3d19512d1..27d11da2b479 100644
--- a/include/asm-m68k/macintosh.h
+++ b/include/asm-m68k/macintosh.h
@@ -11,17 +11,7 @@
 extern void mac_reset(void);
 extern void mac_poweroff(void);
 extern void mac_init_IRQ(void);
-extern int mac_request_irq (unsigned int, irqreturn_t (*)(int, void *,
-                                struct pt_regs *),
-                                unsigned long, const char *, void *);
-extern void mac_free_irq(unsigned int, void *);
-extern void mac_enable_irq(unsigned int);
-extern void mac_disable_irq(unsigned int);
 extern int mac_irq_pending(unsigned int);
-extern int show_mac_interrupts(struct seq_file *, void *);
-#if 0
-extern void mac_default_handler(int irq);
-#endif
 extern void mac_identify(void);
 extern void mac_report_hardware(void);
 extern void mac_debugging_penguin(int);
diff --git a/include/asm-m68k/macints.h b/include/asm-m68k/macints.h
index c9604f821bd4..679c48ab4407 100644
--- a/include/asm-m68k/macints.h
+++ b/include/asm-m68k/macints.h
@@ -152,7 +152,4 @@
 #define INT_CLK   24576     /* CLK while int_clk =2.456MHz and divide = 100 */
 #define INT_TICKS 246       /* to make sched_time = 99.902... HZ */
 
-extern irq_node_t *mac_irq_list[NUM_MAC_SOURCES];
-extern void mac_do_irq_list(int irq, struct pt_regs *);
-
 #endif /* asm/macints.h */