20 files changed, 46 insertions, 37 deletions

diff --git a/arch/sh/boards/hp6xx/hp6xx_apm.c b/arch/sh/boards/hp6xx/hp6xx_apm.c
index 75f91aaae077..219179114f0f 100644
--- a/arch/sh/boards/hp6xx/hp6xx_apm.c
+++ b/arch/sh/boards/hp6xx/hp6xx_apm.c
@@ -83,7 +83,7 @@ static int hp6x0_apm_get_info(char *buf, char **start, off_t fpos, int length)
         return p - buf;
 }
 
-static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t hp6x0_apm_interrupt(int irq, void *dev)
 {
         if (!apm_suspended)
                 apm_queue_event(APM_USER_SUSPEND);
@@ -96,7 +96,7 @@ static int __init hp6x0_apm_init(void)
         int ret;
 
         ret = request_irq(HP680_BTN_IRQ, hp6x0_apm_interrupt,
-                          SA_INTERRUPT, MODNAME, 0);
+                          IRQF_DISABLED, MODNAME, 0);
         if (unlikely(ret < 0)) {
                 printk(KERN_ERR MODNAME ": IRQ %d request failed\n",
                        HP680_BTN_IRQ);
diff --git a/arch/sh/boards/landisk/landisk_pwb.c b/arch/sh/boards/landisk/landisk_pwb.c
index 0b7bee1a9ca5..e62524978160 100644
--- a/arch/sh/boards/landisk/landisk_pwb.c
+++ b/arch/sh/boards/landisk/landisk_pwb.c
@@ -135,7 +135,7 @@ static int swdrv_write(struct file *filp, const char *buff, size_t count,
         return count;
 }
 
-static irqreturn_t sw_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t sw_interrupt(int irq, void *dev_id)
 {
         landisk_btn = (0x0ff & (~ctrl_inb(PA_STATUS)));
         disable_irq(IRQ_BUTTON);
diff --git a/arch/sh/boards/mpc1211/setup.c b/arch/sh/boards/mpc1211/setup.c
index 01c10fa5c058..7c3d1d304157 100644
--- a/arch/sh/boards/mpc1211/setup.c
+++ b/arch/sh/boards/mpc1211/setup.c
@@ -69,7 +69,6 @@ static void __init pci_write_config(unsigned long busNo,
 
 static unsigned char m_irq_mask = 0xfb;
 static unsigned char s_irq_mask = 0xff;
-volatile unsigned long irq_err_count;
 
 static void disable_mpc1211_irq(unsigned int irq)
 {
@@ -118,7 +117,7 @@ static void mask_and_ack_mpc1211(unsigned int irq)
         if(irq < 8) {
                 if(m_irq_mask & (1<<irq)){
                   if(!mpc1211_irq_real(irq)){
-                    irq_err_count++;
+                    atomic_inc(&irq_err_count)
                     printk("spurious 8259A interrupt: IRQ %x\n",irq);
                    }
                 } else {
@@ -131,7 +130,7 @@ static void mask_and_ack_mpc1211(unsigned int irq)
         } else {
                 if(s_irq_mask & (1<<(irq - 8))){
                   if(!mpc1211_irq_real(irq)){
-                    irq_err_count++;
+                    atomic_inc(&irq_err_count);
                     printk("spurious 8259A interrupt: IRQ %x\n",irq);
                   }
                 } else {
diff --git a/arch/sh/boards/snapgear/setup.c b/arch/sh/boards/snapgear/setup.c
index f5e98c56b530..540d0bf16446 100644
--- a/arch/sh/boards/snapgear/setup.c
+++ b/arch/sh/boards/snapgear/setup.c
@@ -33,7 +33,7 @@ extern void pcibios_init(void);
  * EraseConfig handling functions
  */
 
-static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t eraseconfig_interrupt(int irq, void *dev_id)
 {
         volatile char dummy __attribute__((unused)) = * (volatile char *) 0xb8000000;
 
diff --git a/arch/sh/cchips/hd6446x/hd64461/setup.c b/arch/sh/cchips/hd6446x/hd64461/setup.c
index 38f1e8171a3a..4d49b5cbcc13 100644
--- a/arch/sh/cchips/hd6446x/hd64461/setup.c
+++ b/arch/sh/cchips/hd6446x/hd64461/setup.c
@@ -71,7 +71,7 @@ static struct hw_interrupt_type hd64461_irq_type = {
         .end            = end_hd64461_irq,
 };
 
-static irqreturn_t hd64461_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t hd64461_interrupt(int irq, void *dev_id)
 {
         printk(KERN_INFO
                "HD64461: spurious interrupt, nirr: 0x%x nimr: 0x%x\n",
diff --git a/arch/sh/cchips/hd6446x/hd64465/gpio.c b/arch/sh/cchips/hd6446x/hd64465/gpio.c
index 72320d02d69a..43431855ec86 100644
--- a/arch/sh/cchips/hd6446x/hd64465/gpio.c
+++ b/arch/sh/cchips/hd6446x/hd64465/gpio.c
@@ -85,7 +85,7 @@ static struct {
     void *dev;
 } handlers[GPIO_NPORTS * 8];
 
-static irqreturn_t hd64465_gpio_interrupt(int irq, void *dev, struct pt_regs *regs)
+static irqreturn_t hd64465_gpio_interrupt(int irq, void *dev)
 {
         unsigned short port, pin, isr, mask, portpin;
         
diff --git a/arch/sh/cchips/hd6446x/hd64465/setup.c b/arch/sh/cchips/hd6446x/hd64465/setup.c
index 30573d3e1966..d126e1f30dee 100644
--- a/arch/sh/cchips/hd6446x/hd64465/setup.c
+++ b/arch/sh/cchips/hd6446x/hd64465/setup.c
@@ -84,7 +84,7 @@ static struct hw_interrupt_type hd64465_irq_type = {
 };
 
 
-static irqreturn_t hd64465_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t hd64465_interrupt(int irq, void *dev_id)
 {
         printk(KERN_INFO
                "HD64465: spurious interrupt, nirr: 0x%x nimr: 0x%x\n",
diff --git a/arch/sh/cchips/voyagergx/irq.c b/arch/sh/cchips/voyagergx/irq.c
index 392c8b12ce36..bf1b28feca06 100644
--- a/arch/sh/cchips/voyagergx/irq.c
+++ b/arch/sh/cchips/voyagergx/irq.c
@@ -88,8 +88,7 @@ static struct hw_interrupt_type voyagergx_irq_type = {
         .end = end_voyagergx_irq,
 };
 
-static irqreturn_t voyagergx_interrupt(int irq, void *dev_id,
-                                      struct pt_regs *regs)
+static irqreturn_t voyagergx_interrupt(int irq, void *dev_id)
 {
         printk(KERN_INFO
                "VoyagerGX: spurious interrupt, status: 0x%x\n",
diff --git a/arch/sh/drivers/dma/dma-g2.c b/arch/sh/drivers/dma/dma-g2.c
index 9cb070924180..0caf11bb7e27 100644
--- a/arch/sh/drivers/dma/dma-g2.c
+++ b/arch/sh/drivers/dma/dma-g2.c
@@ -51,7 +51,7 @@ static volatile struct g2_dma_info *g2_dma = (volatile struct g2_dma_info *)0xa0
         ((g2_dma->channel[i].size - \
           g2_dma->status[i].size) & 0x0fffffff)
 
-static irqreturn_t g2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t g2_dma_interrupt(int irq, void *dev_id)
 {
         int i;
 
diff --git a/arch/sh/drivers/dma/dma-pvr2.c b/arch/sh/drivers/dma/dma-pvr2.c
index c1b6bc23c107..838fad566eaf 100644
--- a/arch/sh/drivers/dma/dma-pvr2.c
+++ b/arch/sh/drivers/dma/dma-pvr2.c
@@ -21,7 +21,7 @@
 static unsigned int xfer_complete;
 static int count;
 
-static irqreturn_t pvr2_dma_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t pvr2_dma_interrupt(int irq, void *dev_id)
 {
         if (get_dma_residue(PVR2_CASCADE_CHAN)) {
                 printk(KERN_WARNING "DMA: SH DMAC did not complete transfer "
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
index cbbe8bce3d67..d8ece20bb2cf 100644
--- a/arch/sh/drivers/dma/dma-sh.c
+++ b/arch/sh/drivers/dma/dma-sh.c
@@ -60,9 +60,9 @@ static inline unsigned int calc_xmit_shift(struct dma_channel *chan)
  * Besides that it needs to waken any waiting process, which should handle
  * setting up the next transfer.
  */
-static irqreturn_t dma_tei(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dma_tei(int irq, void *dev_id)
 {
-        struct dma_channel *chan = (struct dma_channel *)dev_id;
+        struct dma_channel *chan = dev_id;
         u32 chcr;
 
         chcr = ctrl_inl(CHCR[chan->chan]);
@@ -228,7 +228,7 @@ static inline int dmaor_reset(void)
 }
 
 #if defined(CONFIG_CPU_SH4)
-static irqreturn_t dma_err(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dma_err(int irq, void *dummy)
 {
         dmaor_reset();
         disable_irq(irq);
diff --git a/arch/sh/drivers/pci/pci-st40.c b/arch/sh/drivers/pci/pci-st40.c
index 4ab5ea6b35fb..efecb3d5995c 100644
--- a/arch/sh/drivers/pci/pci-st40.c
+++ b/arch/sh/drivers/pci/pci-st40.c
@@ -161,7 +161,7 @@ static char * pci_commands[16]={
         "Memory Write-and-Invalidate"
 };
 
-static irqreturn_t st40_pci_irq(int irq, void *dev_instance, struct pt_regs *regs)
+static irqreturn_t st40_pci_irq(int irq, void *dev_instance)
 {
         unsigned pci_int, pci_air, pci_cir, pci_aint;
         static int count=0;
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index c7ebd6aec951..3b93682bf18b 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -17,6 +17,8 @@
 #include <asm/thread_info.h>
 #include <asm/cpu/mmu_context.h>
 
+atomic_t irq_err_count;
+
 /*
  * 'what should we do if we get a hw irq event on an illegal vector'.
  * each architecture has to answer this themselves, it doesn't deserve
@@ -47,8 +49,10 @@ int show_interrupts(struct seq_file *p, void *v)
                 if (!action)
                         goto unlock;
                 seq_printf(p, "%3d: ",i);
-                seq_printf(p, "%10u ", kstat_irqs(i));
-                seq_printf(p, " %14s", irq_desc[i].chip->typename);
+                for_each_online_cpu(j)
+                        seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
+                seq_printf(p, " %14s", irq_desc[i].chip->name);
+                seq_printf(p, "-%s", handle_irq_name(irq_desc[i].handle_irq));
                 seq_printf(p, "  %s", action->name);
 
                 for (action=action->next; action; action = action->next)
@@ -56,7 +60,9 @@ int show_interrupts(struct seq_file *p, void *v)
                 seq_putc(p, '\n');
 unlock:
                 spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-        }
+        } else if (i == NR_IRQS)
+                seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count));
+
         return 0;
 }
 #endif
@@ -78,6 +84,7 @@ asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
                       unsigned long r6, unsigned long r7,
                       struct pt_regs regs)
 {
+        struct pt_regs *old_regs = set_irq_regs(&regs);
         int irq = r4;
 #ifdef CONFIG_4KSTACKS
         union irq_ctx *curctx, *irqctx;
@@ -139,7 +146,6 @@ asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
 
                 __asm__ __volatile__ (
                         "mov    %0, r4          \n"
-                        "mov    %1, r5          \n"
                         "mov    r15, r9         \n"
                         "jsr    @%2             \n"
                         /* swith to the irq stack */
@@ -147,17 +153,18 @@ asmlinkage int do_IRQ(unsigned long r4, unsigned long r5,
                         /* restore the stack (ring zero) */
                         "mov    r9, r15         \n"
                         : /* no outputs */
-                        : "r" (irq), "r" (&regs), "r" (__do_IRQ), "r" (isp)
+                        : "r" (irq), "r" (generic_handle_irq), "r" (isp)
                         /* XXX: A somewhat excessive clobber list? -PFM */
                         : "memory", "r0", "r1", "r2", "r3", "r4",
                           "r5", "r6", "r7", "r8", "t", "pr"
                 );
         } else
 #endif
-                __do_IRQ(irq, &regs);
+                generic_handle_irq(irq);
 
         irq_exit();
 
+        set_irq_regs(old_regs);
         return 1;
 }
 
diff --git a/arch/sh/kernel/time.c b/arch/sh/kernel/time.c
index 1fbb83c665dd..57e708d7b52d 100644
--- a/arch/sh/kernel/time.c
+++ b/arch/sh/kernel/time.c
@@ -109,13 +109,14 @@ static long last_rtc_update;
  * handle_timer_tick() needs to keep up the real-time clock,
  * as well as call the "do_timer()" routine every clocktick
  */
-void handle_timer_tick(struct pt_regs *regs)
+void handle_timer_tick(void)
 {
         do_timer(1);
 #ifndef CONFIG_SMP
-        update_process_times(user_mode(regs));
+        update_process_times(user_mode(get_irq_regs()));
 #endif
-        profile_tick(CPU_PROFILING, regs);
+        if (current->pid)
+                profile_tick(CPU_PROFILING);
 
 #ifdef CONFIG_HEARTBEAT
         if (sh_mv.mv_heartbeat != NULL)
diff --git a/arch/sh/kernel/timers/timer-tmu.c b/arch/sh/kernel/timers/timer-tmu.c
index badfedb455a9..24927015dc31 100644
--- a/arch/sh/kernel/timers/timer-tmu.c
+++ b/arch/sh/kernel/timers/timer-tmu.c
@@ -80,8 +80,7 @@ static unsigned long tmu_timer_get_offset(void)
         return count;
 }
 
-static irqreturn_t tmu_timer_interrupt(int irq, void *dev_id,
-                                       struct pt_regs *regs)
+static irqreturn_t tmu_timer_interrupt(int irq, void *dummy)
 {
         unsigned long timer_status;
 
@@ -98,7 +97,7 @@ static irqreturn_t tmu_timer_interrupt(int irq, void *dev_id,
          * locally disabled. -arca
          */
         write_seqlock(&xtime_lock);
-        handle_timer_tick(regs);
+        handle_timer_tick();
         write_sequnlock(&xtime_lock);
 
         return IRQ_HANDLED;
diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index 8b6efcc05058..143302a8e79c 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -160,7 +160,7 @@ static int sh_rtc_open(struct device *dev)
         tmp |= RCR1_CIE;
         writeb(tmp, rtc->regbase + RCR1);
 
-        ret = request_irq(rtc->periodic_irq, sh_rtc_periodic, SA_INTERRUPT,
+        ret = request_irq(rtc->periodic_irq, sh_rtc_periodic, IRQF_DISABLED,
                           "sh-rtc period", dev);
         if (unlikely(ret)) {
                 dev_err(dev, "request period IRQ failed with %d, IRQ %d\n",
@@ -168,7 +168,7 @@ static int sh_rtc_open(struct device *dev)
                 return ret;
         }
 
-        ret = request_irq(rtc->carry_irq, sh_rtc_interrupt, SA_INTERRUPT,
+        ret = request_irq(rtc->carry_irq, sh_rtc_interrupt, IRQF_DISABLED,
                           "sh-rtc carry", dev);
         if (unlikely(ret)) {
                 dev_err(dev, "request carry IRQ failed with %d, IRQ %d\n",
@@ -177,7 +177,7 @@ static int sh_rtc_open(struct device *dev)
                 goto err_bad_carry;
         }
 
-        ret = request_irq(rtc->alarm_irq, sh_rtc_interrupt, SA_INTERRUPT,
+        ret = request_irq(rtc->alarm_irq, sh_rtc_interrupt, IRQF_DISABLED,
                           "sh-rtc alarm", dev);
         if (unlikely(ret)) {
                 dev_err(dev, "request alarm IRQ failed with %d, IRQ %d\n",
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 266aa325569e..cfcc3caf49d8 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -808,7 +808,7 @@ static int sci_request_irq(struct sci_port *port)
                 }
 
                 if (request_irq(port->irqs[0], sci_mpxed_interrupt,
-                                SA_INTERRUPT, "sci", port)) {
+                                IRQF_DISABLED, "sci", port)) {
                         printk(KERN_ERR "sci: Cannot allocate irq.\n");
                         return -ENODEV;
                 }
@@ -817,7 +817,7 @@ static int sci_request_irq(struct sci_port *port)
                         if (!port->irqs[i])
                                 continue;
                         if (request_irq(port->irqs[i], handlers[i],
-                                        SA_INTERRUPT, desc[i], port)) {
+                                        IRQF_DISABLED, desc[i], port)) {
                                 printk(KERN_ERR "sci: Cannot allocate irq.\n");
                                 return -ENODEV;
                         }
diff --git a/include/asm-sh/hw_irq.h b/include/asm-sh/hw_irq.h
index fed26616967a..80ee1cda7498 100644
--- a/include/asm-sh/hw_irq.h
+++ b/include/asm-sh/hw_irq.h
@@ -1,4 +1,8 @@
 #ifndef __ASM_SH_HW_IRQ_H
 #define __ASM_SH_HW_IRQ_H
 
+#include <asm/atomic.h>
+
+extern atomic_t irq_err_count;
+
 #endif /* __ASM_SH_HW_IRQ_H */
diff --git a/include/asm-sh/irq_regs.h b/include/asm-sh/irq_regs.h
new file mode 100644
index 000000000000..3dd9c0b70270
--- /dev/null
+++ b/include/asm-sh/irq_regs.h
@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>
diff --git a/include/asm-sh/timer.h b/include/asm-sh/timer.h
index 341cb71c2f9b..5df842bcf7b6 100644
--- a/include/asm-sh/timer.h
+++ b/include/asm-sh/timer.h
@@ -36,7 +36,6 @@ static inline unsigned long get_timer_offset(void)
 struct sys_timer *get_sys_timer(void);
 
 /* arch/sh/kernel/time.c */
-void handle_timer_tick(struct pt_regs *);
+void handle_timer_tick(void);
 
 #endif /* __ASM_SH_TIMER_H */
-