Merge branch 'fixes-2.6.39' into for-2.6.40

4 files changed, 61 insertions, 98 deletions

diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 72839190f503..1d730b5579a0 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -7,6 +7,9 @@ config ZONE_DMA
 config XTENSA
         def_bool y
         select HAVE_IDE
+        select HAVE_GENERIC_HARDIRQS
+        select GENERIC_IRQ_SHOW
+        select GENERIC_HARDIRQS_NO_DEPRECATED
         help
           Xtensa processors are 32-bit RISC machines designed by Tensilica
           primarily for embedded systems.  These processors are both
@@ -27,9 +30,6 @@ config GENERIC_FIND_BIT_LE
 config GENERIC_HWEIGHT
         def_bool y
 
-config GENERIC_HARDIRQS
-        def_bool y
-
 config GENERIC_GPIO
         def_bool y
 
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index 87508886cbbd..d77089df412e 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -35,7 +35,6 @@ atomic_t irq_err_count;
 asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
 {
         struct pt_regs *old_regs = set_irq_regs(regs);
-        struct irq_desc *desc = irq_desc + irq;
 
         if (irq >= NR_IRQS) {
                 printk(KERN_EMERG "%s: cannot handle IRQ %d\n",
@@ -57,104 +56,69 @@ asmlinkage void do_IRQ(int irq, struct pt_regs *regs)
                                sp - sizeof(struct thread_info));
         }
 #endif
-        desc->handle_irq(irq, desc);
+        generic_handle_irq(irq);
 
         irq_exit();
         set_irq_regs(old_regs);
 }
 
-/*
- * Generic, controller-independent functions:
- */
-
-int show_interrupts(struct seq_file *p, void *v)
+int arch_show_interrupts(struct seq_file *p, int prec)
 {
-        int i = *(loff_t *) v, j;
-        struct irqaction * action;
-        unsigned long flags;
-
-        if (i == 0) {
-                seq_printf(p, "           ");
-                for_each_online_cpu(j)
-                        seq_printf(p, "CPU%d       ",j);
-                seq_putc(p, '\n');
-        }
-
-        if (i < NR_IRQS) {
-                raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
-                action = irq_desc[i].action;
-                if (!action)
-                        goto skip;
-                seq_printf(p, "%3d: ",i);
-#ifndef CONFIG_SMP
-                seq_printf(p, "%10u ", kstat_irqs(i));
-#else
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-#endif
-                seq_printf(p, " %14s", irq_desc[i].chip->name);
-                seq_printf(p, "  %s", action->name);
-
-                for (action=action->next; action; action = action->next)
-                        seq_printf(p, ", %s", action->name);
-
-                seq_putc(p, '\n');
-skip:
-                raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
-        } else if (i == NR_IRQS) {
-                seq_printf(p, "NMI: ");
-                for_each_online_cpu(j)
-                        seq_printf(p, "%10u ", nmi_count(j));
-                seq_putc(p, '\n');
-                seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count));
-        }
+        int j;
+
+        seq_printf(p, "%*s: ", prec, "NMI");
+        for_each_online_cpu(j)
+                seq_printf(p, "%10u ", nmi_count(j));
+        seq_putc(p, '\n');
+        seq_printf(p, "%*s: ", prec, "ERR");
+        seq_printf(p, "%10u\n", atomic_read(&irq_err_count));
         return 0;
 }
 
-static void xtensa_irq_mask(unsigned int irq)
+static void xtensa_irq_mask(struct irq_chip *d)
 {
-        cached_irq_mask &= ~(1 << irq);
+        cached_irq_mask &= ~(1 << d->irq);
         set_sr (cached_irq_mask, INTENABLE);
 }
 
-static void xtensa_irq_unmask(unsigned int irq)
+static void xtensa_irq_unmask(struct irq_chip *d)
 {
-        cached_irq_mask |= 1 << irq;
+        cached_irq_mask |= 1 << d->irq;
         set_sr (cached_irq_mask, INTENABLE);
 }
 
-static void xtensa_irq_enable(unsigned int irq)
+static void xtensa_irq_enable(struct irq_chip *d)
 {
-        variant_irq_enable(irq);
-        xtensa_irq_unmask(irq);
+        variant_irq_enable(d->irq);
+        xtensa_irq_unmask(d->irq);
 }
 
-static void xtensa_irq_disable(unsigned int irq)
+static void xtensa_irq_disable(struct irq_chip *d)
 {
-        xtensa_irq_mask(irq);
-        variant_irq_disable(irq);
+        xtensa_irq_mask(d->irq);
+        variant_irq_disable(d->irq);
 }
 
-static void xtensa_irq_ack(unsigned int irq)
+static void xtensa_irq_ack(struct irq_chip *d)
 {
-        set_sr(1 << irq, INTCLEAR);
+        set_sr(1 << d->irq, INTCLEAR);
 }
 
-static int xtensa_irq_retrigger(unsigned int irq)
+static int xtensa_irq_retrigger(struct irq_chip *d)
 {
-        set_sr (1 << irq, INTSET);
+        set_sr (1 << d->irq, INTSET);
         return 1;
 }
 
 
 static struct irq_chip xtensa_irq_chip = {
         .name           = "xtensa",
-        .enable         = xtensa_irq_enable,
-        .disable        = xtensa_irq_disable,
-        .mask           = xtensa_irq_mask,
-        .unmask         = xtensa_irq_unmask,
-        .ack            = xtensa_irq_ack,
-        .retrigger      = xtensa_irq_retrigger,
+        .irq_enable     = xtensa_irq_enable,
+        .irq_disable    = xtensa_irq_disable,
+        .irq_mask       = xtensa_irq_mask,
+        .irq_unmask     = xtensa_irq_unmask,
+        .irq_ack        = xtensa_irq_ack,
+        .irq_retrigger  = xtensa_irq_retrigger,
 };
 
 void __init init_IRQ(void)
@@ -165,25 +129,25 @@ void __init init_IRQ(void)
                 int mask = 1 << index;
 
                 if (mask & XCHAL_INTTYPE_MASK_SOFTWARE)
-                        set_irq_chip_and_handler(index, &xtensa_irq_chip,
+                        irq_set_chip_and_handler(index, &xtensa_irq_chip,
                                                  handle_simple_irq);
 
                 else if (mask & XCHAL_INTTYPE_MASK_EXTERN_EDGE)
-                        set_irq_chip_and_handler(index, &xtensa_irq_chip,
+                        irq_set_chip_and_handler(index, &xtensa_irq_chip,
                                                  handle_edge_irq);
 
                 else if (mask & XCHAL_INTTYPE_MASK_EXTERN_LEVEL)
-                        set_irq_chip_and_handler(index, &xtensa_irq_chip,
+                        irq_set_chip_and_handler(index, &xtensa_irq_chip,
                                                  handle_level_irq);
 
                 else if (mask & XCHAL_INTTYPE_MASK_TIMER)
-                        set_irq_chip_and_handler(index, &xtensa_irq_chip,
+                        irq_set_chip_and_handler(index, &xtensa_irq_chip,
                                                  handle_edge_irq);
 
                 else    /* XCHAL_INTTYPE_MASK_WRITE_ERROR */
                         /* XCHAL_INTTYPE_MASK_NMI */
 
-                        set_irq_chip_and_handler(index, &xtensa_irq_chip,
+                        irq_set_chip_and_handler(index, &xtensa_irq_chip,
                                                  handle_level_irq);
         }
 
diff --git a/arch/xtensa/platforms/s6105/device.c b/arch/xtensa/platforms/s6105/device.c
index 65333ffefb07..4f4fc971042f 100644
--- a/arch/xtensa/platforms/s6105/device.c
+++ b/arch/xtensa/platforms/s6105/device.c
@@ -120,7 +120,7 @@ static int __init prepare_phy_irq(int pin)
         irq = gpio_to_irq(pin);
         if (irq < 0)
                 goto free;
-        if (set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0)
+        if (irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW) < 0)
                 goto free;
         return irq;
 free:
diff --git a/arch/xtensa/variants/s6000/gpio.c b/arch/xtensa/variants/s6000/gpio.c
index 380a70fff756..7af0757e001b 100644
--- a/arch/xtensa/variants/s6000/gpio.c
+++ b/arch/xtensa/variants/s6000/gpio.c
@@ -85,30 +85,29 @@ int s6_gpio_init(u32 afsel)
         return gpiochip_add(&gpiochip);
 }
 
-static void ack(unsigned int irq)
+static void ack(struct irq_data *d)
 {
-        writeb(1 << (irq - IRQ_BASE), S6_REG_GPIO + S6_GPIO_IC);
+        writeb(1 << (d->irq - IRQ_BASE), S6_REG_GPIO + S6_GPIO_IC);
 }
 
-static void mask(unsigned int irq)
+static void mask(struct irq_data *d)
 {
         u8 r = readb(S6_REG_GPIO + S6_GPIO_IE);
-        r &= ~(1 << (irq - IRQ_BASE));
+        r &= ~(1 << (d->irq - IRQ_BASE));
         writeb(r, S6_REG_GPIO + S6_GPIO_IE);
 }
 
-static void unmask(unsigned int irq)
+static void unmask(struct irq_data *d)
 {
         u8 m = readb(S6_REG_GPIO + S6_GPIO_IE);
-        m |= 1 << (irq - IRQ_BASE);
+        m |= 1 << (d->irq - IRQ_BASE);
         writeb(m, S6_REG_GPIO + S6_GPIO_IE);
 }
 
-static int set_type(unsigned int irq, unsigned int type)
+static int set_type(struct irq_data *d, unsigned int type)
 {
-        const u8 m = 1 << (irq - IRQ_BASE);
+        const u8 m = 1 << (d->irq - IRQ_BASE);
         irq_flow_handler_t handler;
-        struct irq_desc *desc;
         u8 reg;
 
         if (type == IRQ_TYPE_PROBE) {
@@ -129,8 +128,7 @@ static int set_type(unsigned int irq, unsigned int type)
                 handler = handle_edge_irq;
         }
         writeb(reg, S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IS);
-        desc = irq_to_desc(irq);
-        desc->handle_irq = handler;
+        __irq_set_handler_locked(irq, handler);
 
         reg = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_IEV);
         if (type & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_EDGE_RISING))
@@ -150,22 +148,23 @@ static int set_type(unsigned int irq, unsigned int type)
 
 static struct irq_chip gpioirqs = {
         .name = "GPIO",
-        .ack = ack,
-        .mask = mask,
-        .unmask = unmask,
-        .set_type = set_type,
+        .irq_ack = ack,
+        .irq_mask = mask,
+        .irq_unmask = unmask,
+        .irq_set_type = set_type,
 };
 
 static u8 demux_masks[4];
 
 static void demux_irqs(unsigned int irq, struct irq_desc *desc)
 {
-        u8 *mask = get_irq_desc_data(desc);
+        struct irq_chip *chip = irq_desc_get_chip(desc);
+        u8 *mask = irq_desc_get_handler_data(desc);
         u8 pending;
         int cirq;
 
-        desc->chip->mask(irq);
-        desc->chip->ack(irq);
+        chip->irq_mask(&desc->irq_data);
+        chip->irq_ack(&desc->irq_data));
         pending = readb(S6_REG_GPIO + S6_GPIO_BANK(0) + S6_GPIO_MIS) & *mask;
         cirq = IRQ_BASE - 1;
         while (pending) {
@@ -174,7 +173,7 @@ static void demux_irqs(unsigned int irq, struct irq_desc *desc)
                 pending >>= n;
                 generic_handle_irq(cirq);
         }
-        desc->chip->unmask(irq);
+        chip->irq_unmask(&desc->irq_data));
 }
 
 extern const signed char *platform_irq_mappings[XTENSA_NR_IRQS];
@@ -219,11 +218,11 @@ void __init variant_init_irq(void)
                                 i = ffs(mask);
                                 cirq += i;
                                 mask >>= i;
-                                set_irq_chip(cirq, &gpioirqs);
-                                set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
+                                irq_set_chip(cirq, &gpioirqs);
+                                irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
                         } while (mask);
-                        set_irq_data(irq, demux_masks + n);
-                        set_irq_chained_handler(irq, demux_irqs);
+                        irq_set_handler_data(irq, demux_masks + n);
+                        irq_set_chained_handler(irq, demux_irqs);
                         if (++n == ARRAY_SIZE(demux_masks))
                                 break;
                 }