39 files changed, 100 insertions, 194 deletions

diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h
index 35c21c375d81..53c15dec7af6 100644
--- a/arch/arm/include/asm/irq.h
+++ b/arch/arm/include/asm/irq.h
@@ -30,6 +30,11 @@ extern void asm_do_IRQ(unsigned int, struct pt_regs *);
 void handle_IRQ(unsigned int, struct pt_regs *);
 void init_IRQ(void);
 
+#ifdef CONFIG_MULTI_IRQ_HANDLER
+extern void (*handle_arch_irq)(struct pt_regs *);
+extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
+#endif
+
 #endif
 
 #endif
diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h
index 18c883023339..2092ee1e1300 100644
--- a/arch/arm/include/asm/mach/irq.h
+++ b/arch/arm/include/asm/mach/irq.h
@@ -20,11 +20,6 @@ struct seq_file;
 extern void init_FIQ(int);
 extern int show_fiq_list(struct seq_file *, int);
 
-#ifdef CONFIG_MULTI_IRQ_HANDLER
-extern void (*handle_arch_irq)(struct pt_regs *);
-extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
-#endif
-
 /*
  * This is for easy migration, but should be changed in the source
  */
@@ -35,35 +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 c5d7e1e9d757..a5afcf76550e 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 789d4e66c950..99b7f1cbbb8b 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -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>
diff --git a/arch/arm/mach-exynos/platsmp.c b/arch/arm/mach-exynos/platsmp.c
index 60f7c5be057d..95e04bd5813f 100644
--- a/arch/arm/mach-exynos/platsmp.c
+++ b/arch/arm/mach-exynos/platsmp.c
@@ -20,7 +20,6 @@
 #include <linux/jiffies.h>
 #include <linux/smp.h>
 #include <linux/io.h>
-#include <linux/irqchip/arm-gic.h>
 
 #include <asm/cacheflush.h>
 #include <asm/smp_plat.h>
@@ -76,13 +75,6 @@ static DEFINE_SPINLOCK(boot_lock);
 static void __cpuinit exynos_secondary_init(unsigned int cpu)
 {
         /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-
-        /*
          * let the primary processor know we're out of the
          * pen, then head off into the C entry point
          */
diff --git a/arch/arm/mach-highbank/platsmp.c b/arch/arm/mach-highbank/platsmp.c
index 8797a7001720..a984573e0d02 100644
--- a/arch/arm/mach-highbank/platsmp.c
+++ b/arch/arm/mach-highbank/platsmp.c
@@ -17,7 +17,6 @@
 #include <linux/init.h>
 #include <linux/smp.h>
 #include <linux/io.h>
-#include <linux/irqchip/arm-gic.h>
 
 #include <asm/smp_scu.h>
 
@@ -25,11 +24,6 @@
 
 extern void secondary_startup(void);
 
-static void __cpuinit highbank_secondary_init(unsigned int cpu)
-{
-        gic_secondary_init(0);
-}
-
 static int __cpuinit highbank_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         highbank_set_cpu_jump(cpu, secondary_startup);
@@ -67,7 +61,6 @@ static void __init highbank_smp_prepare_cpus(unsigned int max_cpus)
 struct smp_operations highbank_smp_ops __initdata = {
         .smp_init_cpus          = highbank_smp_init_cpus,
         .smp_prepare_cpus       = highbank_smp_prepare_cpus,
-        .smp_secondary_init     = highbank_secondary_init,
         .smp_boot_secondary     = highbank_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
         .cpu_die                = highbank_cpu_die,
diff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c
index 7c0b03f67b05..77e9a25ed0f6 100644
--- a/arch/arm/mach-imx/platsmp.c
+++ b/arch/arm/mach-imx/platsmp.c
@@ -12,7 +12,6 @@
 
 #include <linux/init.h>
 #include <linux/smp.h>
-#include <linux/irqchip/arm-gic.h>
 #include <asm/page.h>
 #include <asm/smp_scu.h>
 #include <asm/mach/map.h>
@@ -52,16 +51,6 @@ void imx_scu_standby_enable(void)
         writel_relaxed(val, scu_base);
 }
 
-static void __cpuinit imx_secondary_init(unsigned int cpu)
-{
-        /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-}
-
 static int __cpuinit imx_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         imx_set_cpu_jump(cpu, v7_secondary_startup);
@@ -96,7 +85,6 @@ static void __init imx_smp_prepare_cpus(unsigned int max_cpus)
 struct smp_operations  imx_smp_ops __initdata = {
         .smp_init_cpus          = imx_smp_init_cpus,
         .smp_prepare_cpus       = imx_smp_prepare_cpus,
-        .smp_secondary_init     = imx_secondary_init,
         .smp_boot_secondary     = imx_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
         .cpu_die                = imx_cpu_die,
diff --git a/arch/arm/mach-msm/platsmp.c b/arch/arm/mach-msm/platsmp.c
index 42932865416a..00cdb0a5dac8 100644
--- a/arch/arm/mach-msm/platsmp.c
+++ b/arch/arm/mach-msm/platsmp.c
@@ -15,7 +15,6 @@
 #include <linux/jiffies.h>
 #include <linux/smp.h>
 #include <linux/io.h>
-#include <linux/irqchip/arm-gic.h>
 
 #include <asm/cacheflush.h>
 #include <asm/cputype.h>
@@ -42,13 +41,6 @@ static inline int get_core_count(void)
 static void __cpuinit msm_secondary_init(unsigned int cpu)
 {
         /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-
-        /*
          * let the primary processor know we're out of the
          * pen, then head off into the C entry point
          */
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index d9727218dd0a..e7a449758ab5 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -67,13 +67,6 @@ static void __cpuinit omap4_secondary_init(unsigned int cpu)
                                                         4, 0, 0, 0, 0, 0);
 
         /*
-         * If any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-
-        /*
          * Synchronise with the boot thread.
          */
         spin_lock(&boot_lock);
diff --git a/arch/arm/mach-prima2/platsmp.c b/arch/arm/mach-prima2/platsmp.c
index 4b788310f6a6..c7c92e78f0cf 100644
--- a/arch/arm/mach-prima2/platsmp.c
+++ b/arch/arm/mach-prima2/platsmp.c
@@ -11,7 +11,6 @@
 #include <linux/delay.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
-#include <linux/irqchip/arm-gic.h>
 #include <asm/page.h>
 #include <asm/mach/map.h>
 #include <asm/smp_plat.h>
@@ -49,13 +48,6 @@ void __init sirfsoc_map_scu(void)
 static void __cpuinit sirfsoc_secondary_init(unsigned int cpu)
 {
         /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-
-        /*
          * let the primary processor know we're out of the
          * pen, then head off into the C entry point
          */
diff --git a/arch/arm/mach-s3c24xx/irq.c b/arch/arm/mach-s3c24xx/irq.c
index cb9f5e011e73..b6fac28a0034 100644
--- a/arch/arm/mach-s3c24xx/irq.c
+++ b/arch/arm/mach-s3c24xx/irq.c
@@ -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>
 
diff --git a/arch/arm/mach-shmobile/smp-emev2.c b/arch/arm/mach-shmobile/smp-emev2.c
index 8225c16b371b..e38691b4d0dd 100644
--- a/arch/arm/mach-shmobile/smp-emev2.c
+++ b/arch/arm/mach-shmobile/smp-emev2.c
@@ -23,7 +23,6 @@
 #include <linux/spinlock.h>
 #include <linux/io.h>
 #include <linux/delay.h>
-#include <linux/irqchip/arm-gic.h>
 #include <mach/common.h>
 #include <mach/emev2.h>
 #include <asm/smp_plat.h>
@@ -31,11 +30,6 @@
 
 #define EMEV2_SCU_BASE 0x1e000000
 
-static void __cpuinit emev2_secondary_init(unsigned int cpu)
-{
-        gic_secondary_init(0);
-}
-
 static int __cpuinit emev2_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         arch_send_wakeup_ipi_mask(cpumask_of(cpu_logical_map(cpu)));
@@ -69,6 +63,5 @@ static void __init emev2_smp_init_cpus(void)
 struct smp_operations emev2_smp_ops __initdata = {
         .smp_init_cpus          = emev2_smp_init_cpus,
         .smp_prepare_cpus       = emev2_smp_prepare_cpus,
-        .smp_secondary_init     = emev2_secondary_init,
         .smp_boot_secondary     = emev2_boot_secondary,
 };
diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index ea4535a5c4e2..a853bf182ed5 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -23,7 +23,6 @@
 #include <linux/spinlock.h>
 #include <linux/io.h>
 #include <linux/delay.h>
-#include <linux/irqchip/arm-gic.h>
 #include <mach/common.h>
 #include <mach/r8a7779.h>
 #include <asm/cacheflush.h>
@@ -82,11 +81,6 @@ static int r8a7779_platform_cpu_kill(unsigned int cpu)
         return ret ? ret : 1;
 }
 
-static void __cpuinit r8a7779_secondary_init(unsigned int cpu)
-{
-        gic_secondary_init(0);
-}
-
 static int __cpuinit r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         struct r8a7779_pm_ch *ch = NULL;
@@ -181,7 +175,6 @@ static int r8a7779_cpu_disable(unsigned int cpu)
 struct smp_operations r8a7779_smp_ops  __initdata = {
         .smp_init_cpus          = r8a7779_smp_init_cpus,
         .smp_prepare_cpus       = r8a7779_smp_prepare_cpus,
-        .smp_secondary_init     = r8a7779_secondary_init,
         .smp_boot_secondary     = r8a7779_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
         .cpu_kill               = r8a7779_cpu_kill,
diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index 5ae502b16437..bf79626ee5a4 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -23,7 +23,6 @@
 #include <linux/spinlock.h>
 #include <linux/io.h>
 #include <linux/delay.h>
-#include <linux/irqchip/arm-gic.h>
 #include <mach/common.h>
 #include <asm/cacheflush.h>
 #include <asm/smp_plat.h>
@@ -49,11 +48,6 @@ void __init sh73a0_register_twd(void)
 }
 #endif
 
-static void __cpuinit sh73a0_secondary_init(unsigned int cpu)
-{
-        gic_secondary_init(0);
-}
-
 static int __cpuinit sh73a0_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         cpu = cpu_logical_map(cpu);
@@ -134,7 +128,6 @@ static int sh73a0_cpu_disable(unsigned int cpu)
 struct smp_operations sh73a0_smp_ops __initdata = {
         .smp_init_cpus          = sh73a0_smp_init_cpus,
         .smp_prepare_cpus       = sh73a0_smp_prepare_cpus,
-        .smp_secondary_init     = sh73a0_secondary_init,
         .smp_boot_secondary     = sh73a0_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
         .cpu_kill               = sh73a0_cpu_kill,
diff --git a/arch/arm/mach-socfpga/platsmp.c b/arch/arm/mach-socfpga/platsmp.c
index b907fb986d9e..b51ce8c7929d 100644
--- a/arch/arm/mach-socfpga/platsmp.c
+++ b/arch/arm/mach-socfpga/platsmp.c
@@ -22,7 +22,6 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
-#include <linux/irqchip/arm-gic.h>
 
 #include <asm/cacheflush.h>
 #include <asm/smp_scu.h>
@@ -30,16 +29,6 @@
 
 #include "core.h"
 
-static void __cpuinit socfpga_secondary_init(unsigned int cpu)
-{
-        /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-}
-
 static int __cpuinit socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
         int trampoline_size = &secondary_trampoline_end - &secondary_trampoline;
@@ -106,7 +95,6 @@ static void socfpga_cpu_die(unsigned int cpu)
 struct smp_operations socfpga_smp_ops __initdata = {
         .smp_init_cpus          = socfpga_smp_init_cpus,
         .smp_prepare_cpus       = socfpga_smp_prepare_cpus,
-        .smp_secondary_init     = socfpga_secondary_init,
         .smp_boot_secondary     = socfpga_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
         .cpu_die                = socfpga_cpu_die,
diff --git a/arch/arm/mach-spear13xx/platsmp.c b/arch/arm/mach-spear13xx/platsmp.c
index af4ade61cd95..551c69c9a228 100644
--- a/arch/arm/mach-spear13xx/platsmp.c
+++ b/arch/arm/mach-spear13xx/platsmp.c
@@ -15,7 +15,6 @@
 #include <linux/jiffies.h>
 #include <linux/io.h>
 #include <linux/smp.h>
-#include <linux/irqchip/arm-gic.h>
 #include <asm/cacheflush.h>
 #include <asm/smp_scu.h>
 #include <mach/spear.h>
@@ -28,13 +27,6 @@ static void __iomem *scu_base = IOMEM(VA_SCU_BASE);
 static void __cpuinit spear13xx_secondary_init(unsigned int cpu)
 {
         /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-
-        /*
          * let the primary processor know we're out of the
          * pen, then head off into the C entry point
          */
diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c
index 516aab28fe34..0c4963bd4b44 100644
--- a/arch/arm/mach-tegra/platsmp.c
+++ b/arch/arm/mach-tegra/platsmp.c
@@ -18,7 +18,6 @@
 #include <linux/jiffies.h>
 #include <linux/smp.h>
 #include <linux/io.h>
-#include <linux/irqchip/arm-gic.h>
 #include <linux/clk/tegra.h>
 
 #include <asm/cacheflush.h>
@@ -38,13 +37,6 @@ static cpumask_t tegra_cpu_init_mask;
 
 static void __cpuinit tegra_secondary_init(unsigned int cpu)
 {
-        /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-
         cpumask_set_cpu(cpu, &tegra_cpu_init_mask);
 }
 
diff --git a/arch/arm/mach-ux500/platsmp.c b/arch/arm/mach-ux500/platsmp.c
index 18f7af339dc9..152b1309b9af 100644
--- a/arch/arm/mach-ux500/platsmp.c
+++ b/arch/arm/mach-ux500/platsmp.c
@@ -16,7 +16,6 @@
 #include <linux/device.h>
 #include <linux/smp.h>
 #include <linux/io.h>
-#include <linux/irqchip/arm-gic.h>
 
 #include <asm/cacheflush.h>
 #include <asm/smp_plat.h>
@@ -58,13 +57,6 @@ static DEFINE_SPINLOCK(boot_lock);
 static void __cpuinit ux500_secondary_init(unsigned int cpu)
 {
         /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-
-        /*
          * let the primary processor know we're out of the
          * pen, then head off into the C entry point
          */
diff --git a/arch/arm/mach-virt/platsmp.c b/arch/arm/mach-virt/platsmp.c
index 8badaabe70a1..f4143f5bfa5b 100644
--- a/arch/arm/mach-virt/platsmp.c
+++ b/arch/arm/mach-virt/platsmp.c
@@ -21,8 +21,6 @@
 #include <linux/smp.h>
 #include <linux/of.h>
 
-#include <linux/irqchip/arm-gic.h>
-
 #include <asm/psci.h>
 #include <asm/smp_plat.h>
 
@@ -45,14 +43,8 @@ static int __cpuinit virt_boot_secondary(unsigned int cpu,
         return -ENODEV;
 }
 
-static void __cpuinit virt_secondary_init(unsigned int cpu)
-{
-        gic_secondary_init(0);
-}
-
 struct smp_operations __initdata virt_smp_ops = {
         .smp_init_cpus          = virt_smp_init_cpus,
         .smp_prepare_cpus       = virt_smp_prepare_cpus,
-        .smp_secondary_init     = virt_secondary_init,
         .smp_boot_secondary     = virt_boot_secondary,
 };
diff --git a/arch/arm/plat-samsung/irq-vic-timer.c b/arch/arm/plat-samsung/irq-vic-timer.c
index f980cf3d2baa..5d205e74e495 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 bae56131a50a..fafdb059043a 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/arch/arm/plat-versatile/platsmp.c b/arch/arm/plat-versatile/platsmp.c
index f2ac15561778..1e1b2d769748 100644
--- a/arch/arm/plat-versatile/platsmp.c
+++ b/arch/arm/plat-versatile/platsmp.c
@@ -14,7 +14,6 @@
 #include <linux/device.h>
 #include <linux/jiffies.h>
 #include <linux/smp.h>
-#include <linux/irqchip/arm-gic.h>
 
 #include <asm/cacheflush.h>
 #include <asm/smp_plat.h>
@@ -37,13 +36,6 @@ static DEFINE_SPINLOCK(boot_lock);
 void __cpuinit versatile_secondary_init(unsigned int cpu)
 {
         /*
-         * if any interrupts are already enabled for the primary
-         * core (e.g. timer irq), then they will not have been enabled
-         * for us: do so
-         */
-        gic_secondary_init(0);
-
-        /*
          * let the primary processor know we're out of the
          * pen, then head off into the C entry point
          */
diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index 55a7e7769af6..dd2eddeb1e0c 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 7877335c4cc8..7176743915d3 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 159f5c57eb45..a612ea1c53cb 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 b820869ca93c..29763361d13c 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 9cc108d2b770..7523b6d108d0 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 e3956359202c..dde0656ea951 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/exynos-combiner.c b/drivers/irqchip/exynos-combiner.c
index 04d86a9803f4..6a5201351507 100644
--- a/drivers/irqchip/exynos-combiner.c
+++ b/drivers/irqchip/exynos-combiner.c
@@ -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>
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index a32e0d5aa45f..add1fd84fc4b 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -28,6 +28,7 @@
 #include <linux/module.h>
 #include <linux/list.h>
 #include <linux/smp.h>
+#include <linux/cpu.h>
 #include <linux/cpu_pm.h>
 #include <linux/cpumask.h>
 #include <linux/io.h>
@@ -38,12 +39,12 @@
 #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>
 #include <asm/exception.h>
 #include <asm/smp_plat.h>
-#include <asm/mach/irq.h>
 
 #include "irqchip.h"
 
@@ -323,7 +324,7 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
 
         cascade_irq = irq_find_mapping(chip_data->domain, gic_irq);
         if (unlikely(gic_irq < 32 || gic_irq > 1020))
-                do_bad_IRQ(cascade_irq, desc);
+                handle_bad_irq(cascade_irq, desc);
         else
                 generic_handle_irq(cascade_irq);
 
@@ -699,6 +700,25 @@ static int gic_irq_domain_xlate(struct irq_domain *d,
         return 0;
 }
 
+#ifdef CONFIG_SMP
+static int __cpuinit gic_secondary_init(struct notifier_block *nfb,
+                                        unsigned long action, void *hcpu)
+{
+        if (action == CPU_STARTING)
+                gic_cpu_init(&gic_data[0]);
+        return NOTIFY_OK;
+}
+
+/*
+ * Notifier for enabling the GIC CPU interface. Set an arbitrarily high
+ * priority because the GIC needs to be up before the ARM generic timers.
+ */
+static struct notifier_block __cpuinitdata gic_cpu_notifier = {
+        .notifier_call = gic_secondary_init,
+        .priority = 100,
+};
+#endif
+
 const struct irq_domain_ops gic_irq_domain_ops = {
         .map = gic_irq_domain_map,
         .xlate = gic_irq_domain_xlate,
@@ -789,6 +809,7 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 
 #ifdef CONFIG_SMP
         set_smp_cross_call(gic_raise_softirq);
+        register_cpu_notifier(&gic_cpu_notifier);
 #endif
 
         set_handle_irq(gic_handle_irq);
@@ -799,13 +820,6 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
         gic_pm_init(gic);
 }
 
-void __cpuinit gic_secondary_init(unsigned int gic_nr)
-{
-        BUG_ON(gic_nr >= MAX_GIC_NR);
-
-        gic_cpu_init(&gic_data[gic_nr]);
-}
-
 #ifdef CONFIG_OF
 static int gic_cnt __initdata = 0;
 
diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c
index 3cf97aaebe40..884d11c7355f 100644
--- a/drivers/irqchip/irq-vic.c
+++ b/drivers/irqchip/irq-vic.c
@@ -23,6 +23,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/io.h>
+#include <linux/irq.h>
 #include <linux/irqdomain.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
@@ -33,7 +34,7 @@
 #include <linux/irqchip/arm-vic.h>
 
 #include <asm/exception.h>
-#include <asm/mach/irq.h>
+#include <asm/irq.h>
 
 #include "irqchip.h"
 
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index efb7f10e902a..b141a28473b5 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 538b9ddaadf7..7265e551dddb 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 36d20293de5c..93eba9715e62 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 d02498b30c6e..ab26b4b669d5 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 295b349a05cf..a4908ecd74fb 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 366f259e3756..6efe4e1b499f 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/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 3fd8e4290a1c..3e203eb23cc7 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -65,7 +65,6 @@ extern struct irq_chip gic_arch_extn;
 
 void gic_init_bases(unsigned int, int, void __iomem *, void __iomem *,
                     u32 offset, struct device_node *);
-void gic_secondary_init(unsigned int);
 void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
 
 static inline void gic_init(unsigned int nr, int start,
diff --git a/include/linux/irqchip/chained_irq.h b/include/linux/irqchip/chained_irq.h
new file mode 100644
index 000000000000..adf4c30f3af6
--- /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 */