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arm: Move chained_irq_(enter|exit) to a generic file

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These functions have been introduced by commit 10a8c383 (irq: introduce
entry and exit functions for chained handlers) in asm/mach/irq.h. This
patch moves them to linux/irqchip/chained_irq.h so that generic irqchip
drivers do not rely on architecture specific header files.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
This commit is contained in:
Catalin Marinas 2013-01-18 15:31:37 +00:00
parent f36a3bb1a1
commit de88cbb7b2
21 changed files with 71 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

31
arch/arm/include/asm/mach/irq.h
View File

@ -30,35 +30,4 @@ do { \
raw_spin_unlock(&desc->lock); \
} while(0)
#ifndef __ASSEMBLY__
/*
* Entry/exit functions for chained handlers where the primary IRQ chip
* may implement either fasteoi or level-trigger flow control.
*/
static inline void chained_irq_enter(struct irq_chip *chip,
struct irq_desc *desc)
{
/* FastEOI controllers require no action on entry. */
if (chip->irq_eoi)
return;
if (chip->irq_mask_ack) {
chip->irq_mask_ack(&desc->irq_data);
} else {
chip->irq_mask(&desc->irq_data);
if (chip->irq_ack)
chip->irq_ack(&desc->irq_data);
}
}
static inline void chained_irq_exit(struct irq_chip *chip,
struct irq_desc *desc)
{
if (chip->irq_eoi)
chip->irq_eoi(&desc->irq_data);
else
chip->irq_unmask(&desc->irq_data);
}
#endif
#endif

3
arch/arm/mach-at91/gpio.c
View File

@ -22,10 +22,9 @@
#include <linux/module.h>
#include <linux/io.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/of_address.h>
#include <asm/mach/irq.h>
#include <mach/hardware.h>
#include <mach/at91_pio.h>

1
arch/arm/mach-exynos/common.c
View File

@ -26,6 +26,7 @@
#include <linux/irqchip.h>
#include <linux/of_address.h>
#include <linux/irqchip/arm-gic.h>
#include <linux/irqchip/chained_irq.h>
#include <asm/proc-fns.h>
#include <asm/exception.h>

1
arch/arm/mach-s3c24xx/irq.c
View File

@ -25,6 +25,7 @@
#include <linux/ioport.h>
#include <linux/device.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <asm/mach/irq.h>

3
arch/arm/plat-samsung/irq-vic-timer.c
View File

@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/io.h>
#include <mach/map.h>
@ -23,8 +24,6 @@
#include <plat/irq-vic-timer.h>
#include <plat/regs-timer.h>
#include <asm/mach/irq.h>
static void s3c_irq_demux_vic_timer(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_get_chip(irq);

3
arch/arm/plat-samsung/s5p-irq-gpioint.c
View File

@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/slab.h>
@ -22,8 +23,6 @@
#include <plat/gpio-core.h>
#include <plat/gpio-cfg.h>
#include <asm/mach/irq.h>
#define GPIO_BASE(chip) ((void __iomem *)((unsigned long)((chip)->base) & 0xFFFFF000u))
#define CON_OFFSET 0x700

3
drivers/gpio/gpio-msm-v2.c
View File

@ -23,13 +23,12 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/irq.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <asm/mach/irq.h>
#include <mach/msm_gpiomux.h>
#include <mach/msm_iomap.h>

2
drivers/gpio/gpio-mxc.c
View File

@ -24,6 +24,7 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
@ -32,7 +33,6 @@
#include <linux/of_device.h>
#include <linux/module.h>
#include <asm-generic/bug.h>
#include <asm/mach/irq.h>
enum mxc_gpio_hwtype {
IMX1_GPIO, /* runs on i.mx1 */

3
drivers/gpio/gpio-omap.c
View File

@ -25,11 +25,10 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/gpio.h>
#include <linux/platform_data/gpio-omap.h>
#include <asm/mach/irq.h>
#define OFF_MODE 1
static LIST_HEAD(omap_gpio_list);

2
drivers/gpio/gpio-pl061.c
View File

@ -15,6 +15,7 @@
#include <linux/io.h>
#include <linux/ioport.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/bitops.h>
#include <linux/workqueue.h>
#include <linux/gpio.h>
@ -23,7 +24,6 @@
#include <linux/amba/pl061.h>
#include <linux/slab.h>
#include <linux/pm.h>
#include <asm/mach/irq.h>
#define GPIODIR 0x400
#define GPIOIS 0x404

3
drivers/gpio/gpio-pxa.c
View File

@ -19,6 +19,7 @@
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/io.h>
#include <linux/of.h>
#include <linux/of_device.h>
@ -26,8 +27,6 @@
#include <linux/syscore_ops.h>
#include <linux/slab.h>
#include <asm/mach/irq.h>
#include <mach/irqs.h>
/*

3
drivers/gpio/gpio-tegra.c
View File

@ -27,11 +27,10 @@
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pm.h>
#include <asm/mach/irq.h>
#define GPIO_BANK(x) ((x) >> 5)
#define GPIO_PORT(x) (((x) >> 3) & 0x3)
#define GPIO_BIT(x) ((x) & 0x7)

1
drivers/irqchip/exynos-combiner.c
View File

@ -13,6 +13,7 @@
#include <linux/init.h>
#include <linux/io.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <asm/mach/irq.h>

1
drivers/irqchip/irq-gic.c
View File

@ -38,6 +38,7 @@
#include <linux/interrupt.h>
#include <linux/percpu.h>
#include <linux/slab.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/irqchip/arm-gic.h>
#include <asm/irq.h>

3
drivers/pinctrl/pinctrl-at91.c
View File

@ -18,6 +18,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/pinctrl/machine.h>
@ -27,8 +28,6 @@
/* Since we request GPIOs from ourself */
#include <linux/pinctrl/consumer.h>
#include <asm/mach/irq.h>
#include <mach/hardware.h>
#include <mach/at91_pio.h>

3
drivers/pinctrl/pinctrl-exynos.c
View File

@ -23,13 +23,12 @@
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/of_irq.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <asm/mach/irq.h>
#include "pinctrl-samsung.h"
#include "pinctrl-exynos.h"

2
drivers/pinctrl/pinctrl-nomadik.c
View File

@ -23,6 +23,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/slab.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
@ -33,7 +34,6 @@
/* Since we request GPIOs from ourself */
#include <linux/pinctrl/consumer.h>
#include <linux/platform_data/pinctrl-nomadik.h>
#include <asm/mach/irq.h>
#include "pinctrl-nomadik.h"
#include "core.h"

2
drivers/pinctrl/pinctrl-sirf.c
View File

@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/consumer.h>
@ -25,7 +26,6 @@
#include <linux/bitops.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <asm/mach/irq.h>
#define DRIVER_NAME "pinmux-sirf"

2
drivers/pinctrl/spear/pinctrl-plgpio.c
View File

@ -15,12 +15,12 @@
#include <linux/io.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/module.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/spinlock.h>
#include <asm/mach/irq.h>
#define MAX_GPIO_PER_REG 32
#define PIN_OFFSET(pin) (pin % MAX_GPIO_PER_REG)

2
drivers/staging/imx-drm/ipu-v3/ipu-common.c
View File

@ -25,8 +25,8 @@
#include <linux/clk.h>
#include <linux/list.h>
#include <linux/irq.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/of_device.h>
#include <asm/mach/irq.h>
#include "imx-ipu-v3.h"
#include "ipu-prv.h"

52
include/linux/irqchip/chained_irq.h Normal file
View File

@ -0,0 +1,52 @@
/*
* Chained IRQ handlers support.
*
* Copyright (C) 2011 ARM Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __IRQCHIP_CHAINED_IRQ_H
#define __IRQCHIP_CHAINED_IRQ_H
#include <linux/irq.h>
/*
* Entry/exit functions for chained handlers where the primary IRQ chip
* may implement either fasteoi or level-trigger flow control.
*/
static inline void chained_irq_enter(struct irq_chip *chip,
struct irq_desc *desc)
{
/* FastEOI controllers require no action on entry. */
if (chip->irq_eoi)
return;
if (chip->irq_mask_ack) {
chip->irq_mask_ack(&desc->irq_data);
} else {
chip->irq_mask(&desc->irq_data);
if (chip->irq_ack)
chip->irq_ack(&desc->irq_data);
}
}
static inline void chained_irq_exit(struct irq_chip *chip,
struct irq_desc *desc)
{
if (chip->irq_eoi)
chip->irq_eoi(&desc->irq_data);
else
chip->irq_unmask(&desc->irq_data);
}
#endif /* __IRQCHIP_CHAINED_IRQ_H */