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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-25 20:24:05 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-03-25 20:24:05 -0700 |
commit | 0dd61be7ec1be1b6820af978f901b9ae2c244dc6 (patch) | |
tree | 1f49edaa21351034e7d1dff6511424e9a949cf6b /arch/xtensa | |
parent | 8dd90265ac0754da0df47d9c597f25187bb1c947 (diff) | |
parent | ab7798ffcf98b11a9525cf65bacdae3fd58d357f (diff) | |
download | kernel_samsung_tuna-0dd61be7ec1be1b6820af978f901b9ae2c244dc6.zip kernel_samsung_tuna-0dd61be7ec1be1b6820af978f901b9ae2c244dc6.tar.gz kernel_samsung_tuna-0dd61be7ec1be1b6820af978f901b9ae2c244dc6.tar.bz2 |
Merge branch 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (23 commits)
genirq: Expand generic show_interrupts()
gpio: Fold irq_set_chip/irq_set_handler to irq_set_chip_and_handler
gpio: Cleanup genirq namespace
arm: ep93xx: Add basic interrupt info
arm/gpio: Remove three copies of broken and racy debug code
xtensa: Use generic show_interrupts()
xtensa: Convert genirq namespace
xtensa: Use generic IRQ Kconfig and set GENERIC_HARDIRQS_NO_DEPRECATED
xtensa: Convert s6000 gpio irq_chip to new functions
xtensa: Convert main irq_chip to new functions
um: Use generic show_interrupts()
um: Convert genirq namespace
m32r: Use generic show_interrupts()
m32r: Convert genirq namespace
h8300: Use generic show_interrupts()
h8300: Convert genirq namespace
avr32: Cleanup eic_set_irq_type()
avr32: Use generic show_interrupts()
avr: Cleanup genirq namespace
avr32: Use generic IRQ config, enable GENERIC_HARDIRQS_NO_DEPRECATED
...
Fix up trivial conflict in drivers/gpio/timbgpio.c
Diffstat (limited to 'arch/xtensa')
-rw-r--r-- | arch/xtensa/Kconfig | 6 | ||||
-rw-r--r-- | arch/xtensa/kernel/irq.c | 106 | ||||
-rw-r--r-- | arch/xtensa/platforms/s6105/device.c | 2 | ||||
-rw-r--r-- | arch/xtensa/variants/s6000/gpio.c | 45 |
4 files changed, 61 insertions, 98 deletions
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 7283919..1d730b5 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 8750888..d77089d 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 65333ff..4f4fc97 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 380a70f..7af0757 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; } |