[PATCH v2 2/4] arm: Move chained_irq_(enter|exit) to a generic file
Catalin Marinas
catalin.marinas at arm.com
Tue Jan 29 11:18:37 EST 2013
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 at arm.com>
Cc: Russell King <linux at arm.linux.org.uk>
Cc: Thomas Gleixner <tglx at linutronix.de>
Cc: Rob Herring <rob.herring at calxeda.com>
---
arch/arm/include/asm/mach/irq.h | 31 -----------------
arch/arm/mach-at91/gpio.c | 3 +-
arch/arm/mach-exynos/common.c | 1 +
arch/arm/plat-samsung/irq-vic-timer.c | 3 +-
arch/arm/plat-samsung/s5p-irq-gpioint.c | 3 +-
drivers/gpio/gpio-msm-v2.c | 3 +-
drivers/gpio/gpio-mxc.c | 2 +-
drivers/gpio/gpio-omap.c | 3 +-
drivers/gpio/gpio-pl061.c | 2 +-
drivers/gpio/gpio-pxa.c | 3 +-
drivers/gpio/gpio-tegra.c | 3 +-
drivers/irqchip/irq-gic.c | 1 +
drivers/pinctrl/pinctrl-at91.c | 3 +-
drivers/pinctrl/pinctrl-exynos.c | 3 +-
drivers/pinctrl/pinctrl-nomadik.c | 2 +-
drivers/pinctrl/pinctrl-sirf.c | 2 +-
drivers/pinctrl/spear/pinctrl-plgpio.c | 2 +-
drivers/staging/imx-drm/ipu-v3/ipu-common.c | 2 +-
include/linux/irqchip/chained_irq.h | 52 +++++++++++++++++++++++++++++
19 files changed, 69 insertions(+), 55 deletions(-)
create mode 100644 include/linux/irqchip/chained_irq.h
diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h
index 749d505..2092ee1 100644
--- a/arch/arm/include/asm/mach/irq.h
+++ b/arch/arm/include/asm/mach/irq.h
@@ -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
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index c5d7e1e..a5afcf7 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -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>
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 7f01a92..60dad95 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -25,6 +25,7 @@
#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>
diff --git a/arch/arm/plat-samsung/irq-vic-timer.c b/arch/arm/plat-samsung/irq-vic-timer.c
index f980cf3..5d205e7 100644
--- a/arch/arm/plat-samsung/irq-vic-timer.c
+++ b/arch/arm/plat-samsung/irq-vic-timer.c
@@ -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);
diff --git a/arch/arm/plat-samsung/s5p-irq-gpioint.c b/arch/arm/plat-samsung/s5p-irq-gpioint.c
index bae5613..fafdb05 100644
--- a/arch/arm/plat-samsung/s5p-irq-gpioint.c
+++ b/arch/arm/plat-samsung/s5p-irq-gpioint.c
@@ -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
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index 55a7e77..dd2edde 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -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>
diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c
index 7877335..7176743 100644
--- a/drivers/gpio/gpio-mxc.c
+++ b/drivers/gpio/gpio-mxc.c
@@ -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 */
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index f1fbedb2..6996da9 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -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);
diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index b820869..2976336 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -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
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index 8325f58..2d3af98 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -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>
/*
diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 414ad91..8e21555 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -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)
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 69d9a39..688b977 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -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>
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 75933a6..5cbadc9 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -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>
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 8738933..911c5e7 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -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"
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index 39c1651..d30d3c1 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -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"
diff --git a/drivers/pinctrl/pinctrl-sirf.c b/drivers/pinctrl/pinctrl-sirf.c
index 498b2ba..35e8cea 100644
--- a/drivers/pinctrl/pinctrl-sirf.c
+++ b/drivers/pinctrl/pinctrl-sirf.c
@@ -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"
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
index 295b349..a4908ec 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -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)
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index 366f259..6efe4e1 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -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"
diff --git a/include/linux/irqchip/chained_irq.h b/include/linux/irqchip/chained_irq.h
new file mode 100644
index 0000000..adf4c30
--- /dev/null
+++ b/include/linux/irqchip/chained_irq.h
@@ -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 */
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