Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq updates from Thomas Gleixner:
 "The irq departement delivers:

   - a cleanup series to get rid of mindlessly copied code.

   - another bunch of new pointlessly different interrupt chip drivers.

     Adding homebrewn irq chips (and timers) to SoCs must provide a
     value add which is beyond the imagination of mere mortals.

   - the usual SoC irq controller updates, IOW my second cat herding
     project"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  irqchip: gic-v3: Implement CPU PM notifier
  irqchip: gic-v3: Refactor gic_enable_redist to support both enabling and disabling
  irqchip: renesas-intc-irqpin: Add minimal runtime PM support
  irqchip: renesas-intc-irqpin: Add helper variable dev = &pdev->dev
  irqchip: atmel-aic5: Add sama5d4 support
  irqchip: atmel-aic5: The sama5d3 has 48 IRQs
  Documentation: bcm7120-l2: Add Broadcom BCM7120-style L2 binding
  irqchip: bcm7120-l2: Add Broadcom BCM7120-style Level 2 interrupt controller
  irqchip: renesas-irqc: Add binding docs for new R-Car Gen2 SoCs
  irqchip: renesas-irqc: Add DT binding documentation
  irqchip: renesas-intc-irqpin: Document SoC-specific bindings
  openrisc: Get rid of handle_IRQ
  arm64: Get rid of handle_IRQ
  ARM: omap2: irq: Convert to handle_domain_irq
  ARM: imx: tzic: Convert to handle_domain_irq
  ARM: imx: avic: Convert to handle_domain_irq
  irqchip: or1k-pic: Convert to handle_domain_irq
  irqchip: atmel-aic5: Convert to handle_domain_irq
  irqchip: atmel-aic: Convert to handle_domain_irq
  irqchip: gic-v3: Convert to handle_domain_irq
  ...

10 files changed, 6 insertions, 63 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 82dfdeac3595..d9d32de9628c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -24,6 +24,7 @@ config ARM
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
+	select HANDLE_DOMAIN_IRQ
 	select HARDIRQS_SW_RESEND
 	select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT)
 	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 88de943eebd6..7c81ec428b9b 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -65,24 +65,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
  */
 void handle_IRQ(unsigned int irq, struct pt_regs *regs)
 {
-	struct pt_regs *old_regs = set_irq_regs(regs);
-
-	irq_enter();
-
-	/*
-	 * Some hardware gives randomly wrong interrupts.  Rather
-	 * than crashing, do something sensible.
-	 */
-	if (unlikely(irq >= nr_irqs)) {
-		if (printk_ratelimit())
-			printk(KERN_WARNING "Bad IRQ%u\n", irq);
-		ack_bad_irq(irq);
-	} else {
-		generic_handle_irq(irq);
-	}
-
-	irq_exit();
-	set_irq_regs(old_regs);
+	__handle_domain_irq(NULL, irq, false, regs);
 }
 
 /*
diff --git a/arch/arm/mach-imx/avic.c b/arch/arm/mach-imx/avic.c
index 24b103c67f82..1a8932335b21 100644
--- a/arch/arm/mach-imx/avic.c
+++ b/arch/arm/mach-imx/avic.c
@@ -144,7 +144,7 @@ static void __exception_irq_entry avic_handle_irq(struct pt_regs *regs)
 		if (nivector == 0xffff)
 			break;
 
-		handle_IRQ(irq_find_mapping(domain, nivector), regs);
+		handle_domain_irq(domain, nivector, regs);
 	} while (1);
 }
 
diff --git a/arch/arm/mach-imx/tzic.c b/arch/arm/mach-imx/tzic.c
index 1d4f384ca773..4de65eeda1eb 100644
--- a/arch/arm/mach-imx/tzic.c
+++ b/arch/arm/mach-imx/tzic.c
@@ -141,8 +141,7 @@ static void __exception_irq_entry tzic_handle_irq(struct pt_regs *regs)
 			while (stat) {
 				handled = 1;
 				irqofs = fls(stat) - 1;
-				handle_IRQ(irq_find_mapping(domain,
-						irqofs + i * 32), regs);
+				handle_domain_irq(domain, irqofs + i * 32, regs);
 				stat &= ~(1 << irqofs);
 			}
 		}
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d0543d90db8d..9746dc24a117 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -30,6 +30,7 @@ config ARM64
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select GENERIC_TIME_VSYSCALL
+	select HANDLE_DOMAIN_IRQ
 	select HARDIRQS_SW_RESEND
 	select HAVE_ARCH_AUDITSYSCALL
 	select HAVE_ARCH_JUMP_LABEL
diff --git a/arch/arm64/include/asm/hardirq.h b/arch/arm64/include/asm/hardirq.h
index 0be67821f9ce..e8a3268a891c 100644
--- a/arch/arm64/include/asm/hardirq.h
+++ b/arch/arm64/include/asm/hardirq.h
@@ -47,8 +47,6 @@ static inline void ack_bad_irq(unsigned int irq)
 	irq_err_count++;
 }
 
-extern void handle_IRQ(unsigned int, struct pt_regs *);
-
 /*
  * No arch-specific IRQ flags.
  */
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index dfa6e3e74fdd..071a6ec13bd8 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -40,33 +40,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	return 0;
 }
 
-/*
- * handle_IRQ handles all hardware IRQ's.  Decoded IRQs should
- * not come via this function.  Instead, they should provide their
- * own 'handler'.  Used by platform code implementing C-based 1st
- * level decoding.
- */
-void handle_IRQ(unsigned int irq, struct pt_regs *regs)
-{
-	struct pt_regs *old_regs = set_irq_regs(regs);
-
-	irq_enter();
-
-	/*
-	 * Some hardware gives randomly wrong interrupts.  Rather
-	 * than crashing, do something sensible.
-	 */
-	if (unlikely(irq >= nr_irqs)) {
-		pr_warn_ratelimited("Bad IRQ%u\n", irq);
-		ack_bad_irq(irq);
-	} else {
-		generic_handle_irq(irq);
-	}
-
-	irq_exit();
-	set_irq_regs(old_regs);
-}
-
 void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
 {
 	if (handle_arch_irq)
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 88e83368bbf5..e5a693b16da2 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -8,6 +8,7 @@ config OPENRISC
 	select OF
 	select OF_EARLY_FLATTREE
 	select IRQ_DOMAIN
+	select HANDLE_DOMAIN_IRQ
 	select HAVE_MEMBLOCK
 	select ARCH_REQUIRE_GPIOLIB
         select HAVE_ARCH_TRACEHOOK
diff --git a/arch/openrisc/include/asm/irq.h b/arch/openrisc/include/asm/irq.h
index b84634cc95eb..d9eee0a2b7b4 100644
--- a/arch/openrisc/include/asm/irq.h
+++ b/arch/openrisc/include/asm/irq.h
@@ -24,7 +24,6 @@
 
 #define NO_IRQ		(-1)
 
-void handle_IRQ(unsigned int, struct pt_regs *);
 extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
 
 #endif /* __ASM_OPENRISC_IRQ_H__ */
diff --git a/arch/openrisc/kernel/irq.c b/arch/openrisc/kernel/irq.c
index 967eb1430203..35e478a93116 100644
--- a/arch/openrisc/kernel/irq.c
+++ b/arch/openrisc/kernel/irq.c
@@ -48,18 +48,6 @@ void __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
 	handle_arch_irq = handle_irq;
 }
 
-void handle_IRQ(unsigned int irq, struct pt_regs *regs)
-{
-	struct pt_regs *old_regs = set_irq_regs(regs);
-
-	irq_enter();
-
-	generic_handle_irq(irq);
-
-	irq_exit();
-	set_irq_regs(old_regs);
-}
-
 void __irq_entry do_IRQ(struct pt_regs *regs)
 {
 	handle_arch_irq(regs);