[GIT pull] irq/core for v5.16-rc1
From: Thomas Gleixner
Date: Sun Oct 31 2021 - 21:16:17 EST
Linus,
please pull the latest irq/core branch from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-core-2021-10-31
up to: 2258a6fc33d5: Merge tag 'irqchip-5.16' into irq/core
Updates for the interrupt subsystem:
Core changes:
- Prevent a potential deadlock when initial priority is assigned to a
newly created interrupt thread. A recent change to plug a race between
cpuset and __sched_setscheduler() introduced a new lock dependency
which is now triggered. Break the lock dependency chain by moving the
priority assignment to the thread function.
- A couple of small updates to make the irq core RT safe.
- Confine the irq_cpu_online/offline() API to the only left unfixable
user Cavium Octeon so that it does not grow new usage.
- A small documentation update
Driver changes:
- A large cross architecture rework to move irq_enter/exit() into the
architecture code to make addressing the NOHZ_FULL/RCU issues simpler.
- The obligatory new irq chip driver for Microchip EIC
- Modularize a few irq chip drivers
- Expand usage of devm_*() helpers throughout the driver code
- The usual small fixes and improvements all over the place
Thanks,
tglx
------------------>
Arnd Bergmann (1):
irqchip: Fix compile-testing without CONFIG_OF
Cai Huoqing (5):
irqchip/irq-mvebu-icu: Make use of the helper function devm_platform_ioremap_resource()
irqchip/irq-mvebu-pic: Make use of the helper function devm_platform_ioremap_resource()
irqchip/irq-ts4800: Make use of the helper function devm_platform_ioremap_resource()
irqchip/stm32: Make use of the helper function devm_platform_ioremap_resource()
irqchip/ti-sci-inta: Make use of the helper function devm_platform_ioremap_resource()
Claudiu Beznea (2):
dt-bindings: microchip,eic: Add bindings for the Microchip EIC
irqchip/mchp-eic: Add support for the Microchip EIC
Florian Fainelli (13):
irqchip/irq-bcm7038-l1: Remove .irq_cpu_offline()
irqchip/irq-bcm7038-l1: Use irq_get_irq_data()
MIPS: BMIPS: Remove use of irq_cpu_offline
irqchip/irq-bcm7038-l1: Gate use of CPU logical map to MIPS
irqchip/irq-bcm7038-l1: Restrict affinity setting to MIPS
irqchip/irq-bcm7038-l1: Switch to IRQCHIP_PLATFORM_DRIVER
genirq: Export irq_gc_{unmask_enable,mask_disable}_reg
irqchip/irq-brcmstb-l2: Switch to IRQCHIP_PLATFORM_DRIVER
genirq: Export irq_gc_noop()
irqchip/irq-bcm7120-l2: Switch to IRQCHIP_PLATFORM_DRIVER
arm64: broadcom: Removed forced select of interrupt controllers
ARM: bcm: Removed forced select of interrupt controllers
irqchip: Fix kernel-doc parameter typo for IRQCHIP_DECLARE
Ingo Molnar (1):
genirq: Disable irqfixup/poll on PREEMPT_RT.
Josh Cartwright (1):
genirq: Update irq_set_irqchip_state documentation
Marc Zyngier (5):
irqchip: Provide stronger type checking for IRQCHIP_MATCH/IRQCHIP_DECLARE
MIPS: loongson64: Drop call to irq_cpu_offline()
irqchip/mips-gic: Get rid of the reliance on irq_cpu_online()
genirq: Hide irq_cpu_{on,off}line() behind a deprecated option
h8300: Fix linux/irqchip.h include mess
Marian-Cristian Rotariu (1):
dt-bindings: irqchip: renesas-irqc: Document r8a774e1 bindings
Mark Rutland (17):
irq: mips: avoid nested irq_enter()
irq: mips: simplify bcm6345_l1_irq_handle()
irq: mips: stop (ab)using handle_domain_irq()
irq: mips: simplify do_domain_IRQ()
irq: simplify handle_domain_{irq,nmi}()
irq: unexport handle_irq_desc()
irq: add generic_handle_arch_irq()
irq: arc: avoid CONFIG_HANDLE_DOMAIN_IRQ
irq: nds32: avoid CONFIG_HANDLE_DOMAIN_IRQ
irq: add a (temporary) CONFIG_HANDLE_DOMAIN_IRQ_IRQENTRY
irq: arm: perform irqentry in entry code
irq: arm64: perform irqentry in entry code
irq: csky: perform irqentry in entry code
irq: openrisc: perform irqentry in entry code
irq: riscv: perform irqentry in entry code
irq: remove CONFIG_HANDLE_DOMAIN_IRQ_IRQENTRY
irq: remove handle_domain_{irq,nmi}()
Mauro Carvalho Chehab (1):
MAINTAINERS: update arm,vic.yaml reference
Neil Armstrong (2):
irqchip/meson-gpio: Make it possible to build as a module
arm64: meson: remove MESON_IRQ_GPIO selection
Thomas Gleixner (2):
genirq: Move prio assignment into the newly created thread
x86/softirq: Disable softirq stacks on PREEMPT_RT
Yang Yingliang (1):
irqchip/mchp-eic: Fix return value check in mchp_eic_init()
Yanteng Si (1):
MIPS: irq: Avoid an unused-variable error
Documentation/core-api/irq/irq-domain.rst | 3 -
.../interrupt-controller/microchip,eic.yaml | 73 ++++++
.../interrupt-controller/renesas,irqc.yaml | 1 +
MAINTAINERS | 8 +-
arch/arc/Kconfig | 1 -
arch/arc/kernel/irq.c | 10 +-
arch/arm/Kconfig | 1 -
arch/arm/kernel/entry-armv.S | 5 +-
arch/arm/kernel/irq.c | 14 +-
arch/arm/mach-bcm/Kconfig | 4 -
arch/arm/mach-imx/avic.c | 2 +-
arch/arm/mach-imx/tzic.c | 2 +-
arch/arm/mach-omap1/irq.c | 2 +-
arch/arm/mach-s3c/irq-s3c24xx.c | 2 +-
arch/arm64/Kconfig | 1 -
arch/arm64/Kconfig.platforms | 4 -
arch/arm64/kernel/entry-common.c | 52 ++--
arch/csky/Kconfig | 1 -
arch/csky/kernel/entry.S | 2 +-
arch/csky/kernel/irq.c | 5 -
arch/h8300/include/asm/irq.h | 2 -
arch/h8300/kernel/irq.c | 1 +
arch/mips/Kconfig | 2 +-
arch/mips/cavium-octeon/octeon-irq.c | 5 +-
arch/mips/kernel/irq.c | 8 +-
arch/mips/kernel/smp-bmips.c | 3 +-
arch/mips/loongson64/smp.c | 1 -
arch/nds32/Kconfig | 1 -
arch/openrisc/Kconfig | 1 -
arch/openrisc/kernel/entry.S | 4 +-
arch/openrisc/kernel/irq.c | 5 -
arch/riscv/Kconfig | 1 -
arch/riscv/kernel/entry.S | 3 +-
arch/riscv/kernel/smp.c | 9 +-
arch/x86/include/asm/irq_stack.h | 3 +
arch/x86/kernel/irq_32.c | 2 +
drivers/irqchip/Kconfig | 25 +-
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-apple-aic.c | 20 +-
drivers/irqchip/irq-armada-370-xp.c | 13 +-
drivers/irqchip/irq-aspeed-vic.c | 2 +-
drivers/irqchip/irq-ativic32.c | 22 +-
drivers/irqchip/irq-atmel-aic.c | 2 +-
drivers/irqchip/irq-atmel-aic5.c | 2 +-
drivers/irqchip/irq-bcm2835.c | 2 +-
drivers/irqchip/irq-bcm2836.c | 2 +-
drivers/irqchip/irq-bcm6345-l1.c | 6 +-
drivers/irqchip/irq-bcm7038-l1.c | 47 +---
drivers/irqchip/irq-bcm7120-l2.c | 21 +-
drivers/irqchip/irq-brcmstb-l2.c | 16 +-
drivers/irqchip/irq-clps711x.c | 8 +-
drivers/irqchip/irq-csky-apb-intc.c | 2 +-
drivers/irqchip/irq-csky-mpintc.c | 4 +-
drivers/irqchip/irq-davinci-aintc.c | 2 +-
drivers/irqchip/irq-davinci-cp-intc.c | 2 +-
drivers/irqchip/irq-digicolor.c | 2 +-
drivers/irqchip/irq-dw-apb-ictl.c | 2 +-
drivers/irqchip/irq-ftintc010.c | 2 +-
drivers/irqchip/irq-gic-v3.c | 4 +-
drivers/irqchip/irq-gic.c | 2 +-
drivers/irqchip/irq-hip04.c | 2 +-
drivers/irqchip/irq-ixp4xx.c | 4 +-
drivers/irqchip/irq-lpc32xx.c | 2 +-
drivers/irqchip/irq-mchp-eic.c | 280 +++++++++++++++++++++
drivers/irqchip/irq-meson-gpio.c | 15 +-
drivers/irqchip/irq-mips-gic.c | 37 ++-
drivers/irqchip/irq-mmp.c | 4 +-
drivers/irqchip/irq-mvebu-icu.c | 4 +-
drivers/irqchip/irq-mvebu-pic.c | 4 +-
drivers/irqchip/irq-mxs.c | 2 +-
drivers/irqchip/irq-nvic.c | 17 +-
drivers/irqchip/irq-omap-intc.c | 2 +-
drivers/irqchip/irq-or1k-pic.c | 2 +-
drivers/irqchip/irq-orion.c | 4 +-
drivers/irqchip/irq-rda-intc.c | 2 +-
drivers/irqchip/irq-riscv-intc.c | 2 +-
drivers/irqchip/irq-sa11x0.c | 4 +-
drivers/irqchip/irq-stm32-exti.c | 4 +-
drivers/irqchip/irq-sun4i.c | 2 +-
drivers/irqchip/irq-ti-sci-inta.c | 4 +-
drivers/irqchip/irq-ts4800.c | 4 +-
drivers/irqchip/irq-versatile-fpga.c | 2 +-
drivers/irqchip/irq-vic.c | 2 +-
drivers/irqchip/irq-vt8500.c | 2 +-
drivers/irqchip/irq-wpcm450-aic.c | 2 +-
drivers/irqchip/irq-zevio.c | 2 +-
include/linux/irq.h | 6 +-
include/linux/irqchip.h | 20 +-
include/linux/irqdesc.h | 9 +-
kernel/irq/Kconfig | 10 +-
kernel/irq/chip.c | 2 +
kernel/irq/generic-chip.c | 3 +
kernel/irq/handle.c | 18 ++
kernel/irq/irqdesc.c | 81 ++----
kernel/irq/manage.c | 6 +-
kernel/irq/spurious.c | 8 +
96 files changed, 700 insertions(+), 329 deletions(-)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/microchip,eic.yaml
create mode 100644 drivers/irqchip/irq-mchp-eic.c
diff --git a/Documentation/core-api/irq/irq-domain.rst b/Documentation/core-api/irq/irq-domain.rst
index 9c0e8758037a..d30b4d0a9769 100644
--- a/Documentation/core-api/irq/irq-domain.rst
+++ b/Documentation/core-api/irq/irq-domain.rst
@@ -67,9 +67,6 @@ variety of methods:
deprecated
- generic_handle_domain_irq() handles an interrupt described by a
domain and a hwirq number
-- handle_domain_irq() does the same thing for root interrupt
- controllers and deals with the set_irq_reg()/irq_enter() sequences
- that most architecture requires
Note that irq domain lookups must happen in contexts that are
compatible with a RCU read-side critical section.
diff --git a/Documentation/devicetree/bindings/interrupt-controller/microchip,eic.yaml b/Documentation/devicetree/bindings/interrupt-controller/microchip,eic.yaml
new file mode 100644
index 000000000000..50003880ee6f
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/microchip,eic.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/microchip,eic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip External Interrupt Controller
+
+maintainers:
+ - Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
+
+description:
+ This interrupt controller is found in Microchip SoCs (SAMA7G5) and provides
+ support for handling up to 2 external interrupt lines.
+
+properties:
+ compatible:
+ enum:
+ - microchip,sama7g5-eic
+
+ reg:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+ description:
+ The first cell is the input IRQ number (between 0 and 1), the second cell
+ is the trigger type as defined in interrupt.txt present in this directory.
+
+ interrupts:
+ description: |
+ Contains the GIC SPI IRQs mapped to the external interrupt lines. They
+ should be specified sequentially from output 0 to output 1.
+ minItems: 2
+ maxItems: 2
+
+ clocks:
+ maxItems: 1
+
+ clock-names:
+ const: pclk
+
+required:
+ - compatible
+ - reg
+ - interrupt-controller
+ - '#interrupt-cells'
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/at91.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ eic: interrupt-controller@e1628000 {
+ compatible = "microchip,sama7g5-eic";
+ reg = <0xe1628000 0x100>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&pmc PMC_TYPE_PERIPHERAL 37>;
+ clock-names = "pclk";
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml
index abb22db3bb28..79d0358e2f61 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.yaml
@@ -27,6 +27,7 @@ properties:
- renesas,intc-ex-r8a774a1 # RZ/G2M
- renesas,intc-ex-r8a774b1 # RZ/G2N
- renesas,intc-ex-r8a774c0 # RZ/G2E
+ - renesas,intc-ex-r8a774e1 # RZ/G2H
- renesas,intc-ex-r8a7795 # R-Car H3
- renesas,intc-ex-r8a7796 # R-Car M3-W
- renesas,intc-ex-r8a77961 # R-Car M3-W+
diff --git a/MAINTAINERS b/MAINTAINERS
index abdcbcfef73d..eed7668a5dd0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1551,7 +1551,7 @@ ARM PRIMECELL VIC PL190/PL192 DRIVER
M: Linus Walleij <linus.walleij@xxxxxxxxxx>
L: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx (moderated for non-subscribers)
S: Maintained
-F: Documentation/devicetree/bindings/interrupt-controller/arm,vic.txt
+F: Documentation/devicetree/bindings/interrupt-controller/arm,vic.yaml
F: drivers/irqchip/irq-vic.c
ARM SMC WATCHDOG DRIVER
@@ -12254,6 +12254,12 @@ L: linux-crypto@xxxxxxxxxxxxxxx
S: Maintained
F: drivers/crypto/atmel-ecc.*
+MICROCHIP EIC DRIVER
+M: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
+L: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx (moderated for non-subscribers)
+S: Supported
+F: drivers/irqchip/irq-mchp-eic.c
+
MICROCHIP I2C DRIVER
M: Codrin Ciubotariu <codrin.ciubotariu@xxxxxxxxxxxxx>
L: linux-i2c@xxxxxxxxxxxxxxx
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 3a5a80f302e1..b4ae6058902a 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -40,7 +40,6 @@ config ARC
select HAVE_KRETPROBES
select HAVE_MOD_ARCH_SPECIFIC
select HAVE_PERF_EVENTS
- select HANDLE_DOMAIN_IRQ
select IRQ_DOMAIN
select MODULES_USE_ELF_RELA
select OF
diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c
index ef909dd4b40c..dd09b58ff82d 100644
--- a/arch/arc/kernel/irq.c
+++ b/arch/arc/kernel/irq.c
@@ -6,6 +6,8 @@
#include <linux/interrupt.h>
#include <linux/irqchip.h>
#include <asm/mach_desc.h>
+
+#include <asm/irq_regs.h>
#include <asm/smp.h>
/*
@@ -39,5 +41,11 @@ void __init init_IRQ(void)
*/
void arch_do_IRQ(unsigned int hwirq, struct pt_regs *regs)
{
- handle_domain_irq(NULL, hwirq, regs);
+ struct pt_regs *old_regs;
+
+ irq_enter();
+ old_regs = set_irq_regs(regs);
+ generic_handle_domain_irq(NULL, hwirq);
+ set_irq_regs(old_regs);
+ irq_exit();
}
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fc196421b2ce..3361a6c29ee9 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -64,7 +64,6 @@ config ARM
select GENERIC_PCI_IOMAP
select GENERIC_SCHED_CLOCK
select GENERIC_SMP_IDLE_THREAD
- select HANDLE_DOMAIN_IRQ
select HARDIRQS_SW_RESEND
select HAVE_ARCH_AUDITSYSCALL if AEABI && !OABI_COMPAT
select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 241b73d64df7..3d0b6169ab86 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -38,14 +38,11 @@
*/
.macro irq_handler
#ifdef CONFIG_GENERIC_IRQ_MULTI_HANDLER
- ldr r1, =handle_arch_irq
mov r0, sp
- badr lr, 9997f
- ldr pc, [r1]
+ bl generic_handle_arch_irq
#else
arch_irq_handler_default
#endif
-9997:
.endm
.macro pabt_helper
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 20ab1e607522..b79975bd988c 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -63,11 +63,8 @@ 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);
struct irq_desc *desc;
- irq_enter();
-
/*
* Some hardware gives randomly wrong interrupts. Rather
* than crashing, do something sensible.
@@ -81,9 +78,6 @@ void handle_IRQ(unsigned int irq, struct pt_regs *regs)
handle_irq_desc(desc);
else
ack_bad_irq(irq);
-
- irq_exit();
- set_irq_regs(old_regs);
}
/*
@@ -92,7 +86,15 @@ void handle_IRQ(unsigned int irq, struct pt_regs *regs)
asmlinkage void __exception_irq_entry
asm_do_IRQ(unsigned int irq, struct pt_regs *regs)
{
+ struct pt_regs *old_regs;
+
+ irq_enter();
+ old_regs = set_irq_regs(regs);
+
handle_IRQ(irq, regs);
+
+ set_irq_regs(old_regs);
+ irq_exit();
}
void __init init_IRQ(void)
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 2890e61b2b46..bd3f82788ebc 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -161,7 +161,6 @@ config ARCH_BCM2835
select ARM_TIMER_SP804
select HAVE_ARM_ARCH_TIMER if ARCH_MULTI_V7
select BCM2835_TIMER
- select BRCMSTB_L2_IRQ
select PINCTRL
select PINCTRL_BCM2835
select MFD_CORE
@@ -209,9 +208,6 @@ config ARCH_BRCMSTB
select ARM_GIC
select ARM_ERRATA_798181 if SMP
select HAVE_ARM_ARCH_TIMER
- select BCM7038_L1_IRQ
- select BRCMSTB_L2_IRQ
- select BCM7120_L2_IRQ
select ZONE_DMA if ARM_LPAE
select SOC_BRCMSTB
select SOC_BUS
diff --git a/arch/arm/mach-imx/avic.c b/arch/arm/mach-imx/avic.c
index 21bce4049cec..cf6546ddc7a3 100644
--- a/arch/arm/mach-imx/avic.c
+++ b/arch/arm/mach-imx/avic.c
@@ -154,7 +154,7 @@ static void __exception_irq_entry avic_handle_irq(struct pt_regs *regs)
if (nivector == 0xffff)
break;
- handle_domain_irq(domain, nivector, regs);
+ generic_handle_domain_irq(domain, nivector);
} while (1);
}
diff --git a/arch/arm/mach-imx/tzic.c b/arch/arm/mach-imx/tzic.c
index 479a01bdac56..8b3d98d288d9 100644
--- a/arch/arm/mach-imx/tzic.c
+++ b/arch/arm/mach-imx/tzic.c
@@ -134,7 +134,7 @@ static void __exception_irq_entry tzic_handle_irq(struct pt_regs *regs)
while (stat) {
handled = 1;
irqofs = fls(stat) - 1;
- handle_domain_irq(domain, irqofs + i * 32, regs);
+ generic_handle_domain_irq(domain, irqofs + i * 32);
stat &= ~(1 << irqofs);
}
}
diff --git a/arch/arm/mach-omap1/irq.c b/arch/arm/mach-omap1/irq.c
index b11edc8a46f0..ee6a93083154 100644
--- a/arch/arm/mach-omap1/irq.c
+++ b/arch/arm/mach-omap1/irq.c
@@ -165,7 +165,7 @@ asmlinkage void __exception_irq_entry omap1_handle_irq(struct pt_regs *regs)
}
irq:
if (irqnr)
- handle_domain_irq(domain, irqnr, regs);
+ generic_handle_domain_irq(domain, irqnr);
else
break;
} while (irqnr);
diff --git a/arch/arm/mach-s3c/irq-s3c24xx.c b/arch/arm/mach-s3c/irq-s3c24xx.c
index 3edc5f614eef..45dfd546e6fa 100644
--- a/arch/arm/mach-s3c/irq-s3c24xx.c
+++ b/arch/arm/mach-s3c/irq-s3c24xx.c
@@ -354,7 +354,7 @@ static inline int s3c24xx_handle_intc(struct s3c_irq_intc *intc,
if (!(pnd & (1 << offset)))
offset = __ffs(pnd);
- handle_domain_irq(intc->domain, intc_offset + offset, regs);
+ generic_handle_domain_irq(intc->domain, intc_offset + offset);
return true;
}
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 5c7ae4c3954b..e6593a03ea27 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -133,7 +133,6 @@ config ARM64
select GENERIC_TIME_VSYSCALL
select GENERIC_GETTIMEOFDAY
select GENERIC_VDSO_TIME_NS
- select HANDLE_DOMAIN_IRQ
select HARDIRQS_SW_RESEND
select HAVE_MOVE_PMD
select HAVE_MOVE_PUD
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index b0ce18d4cc98..96a81967c3bf 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -44,7 +44,6 @@ config ARCH_BCM2835
select ARM_AMBA
select ARM_GIC
select ARM_TIMER_SP804
- select BRCMSTB_L2_IRQ
help
This enables support for the Broadcom BCM2837 and BCM2711 SoC.
These SoCs are used in the Raspberry Pi 3 and 4 devices.
@@ -82,8 +81,6 @@ config ARCH_BITMAIN
config ARCH_BRCMSTB
bool "Broadcom Set-Top-Box SoCs"
select ARCH_HAS_RESET_CONTROLLER
- select BCM7038_L1_IRQ
- select BRCMSTB_L2_IRQ
select GENERIC_IRQ_CHIP
select PINCTRL
help
@@ -167,7 +164,6 @@ config ARCH_MEDIATEK
config ARCH_MESON
bool "Amlogic Platforms"
select COMMON_CLK
- select MESON_IRQ_GPIO
help
This enables support for the arm64 based Amlogic SoCs
such as the s905, S905X/D, S912, A113X/D or S905X/D2
diff --git a/arch/arm64/kernel/entry-common.c b/arch/arm64/kernel/entry-common.c
index 32f9796c4ffe..f7408edf8571 100644
--- a/arch/arm64/kernel/entry-common.c
+++ b/arch/arm64/kernel/entry-common.c
@@ -17,6 +17,7 @@
#include <asm/daifflags.h>
#include <asm/esr.h>
#include <asm/exception.h>
+#include <asm/irq_regs.h>
#include <asm/kprobes.h>
#include <asm/mmu.h>
#include <asm/processor.h>
@@ -219,22 +220,6 @@ static void noinstr arm64_exit_el1_dbg(struct pt_regs *regs)
lockdep_hardirqs_on(CALLER_ADDR0);
}
-static void noinstr enter_el1_irq_or_nmi(struct pt_regs *regs)
-{
- if (IS_ENABLED(CONFIG_ARM64_PSEUDO_NMI) && !interrupts_enabled(regs))
- arm64_enter_nmi(regs);
- else
- enter_from_kernel_mode(regs);
-}
-
-static void noinstr exit_el1_irq_or_nmi(struct pt_regs *regs)
-{
- if (IS_ENABLED(CONFIG_ARM64_PSEUDO_NMI) && !interrupts_enabled(regs))
- arm64_exit_nmi(regs);
- else
- exit_to_kernel_mode(regs);
-}
-
static void __sched arm64_preempt_schedule_irq(void)
{
lockdep_assert_irqs_disabled();
@@ -263,10 +248,14 @@ static void __sched arm64_preempt_schedule_irq(void)
static void do_interrupt_handler(struct pt_regs *regs,
void (*handler)(struct pt_regs *))
{
+ struct pt_regs *old_regs = set_irq_regs(regs);
+
if (on_thread_stack())
call_on_irq_stack(regs, handler);
else
handler(regs);
+
+ set_irq_regs(old_regs);
}
extern void (*handle_arch_irq)(struct pt_regs *);
@@ -432,13 +421,22 @@ asmlinkage void noinstr el1h_64_sync_handler(struct pt_regs *regs)
}
}
-static void noinstr el1_interrupt(struct pt_regs *regs,
- void (*handler)(struct pt_regs *))
+static __always_inline void __el1_pnmi(struct pt_regs *regs,
+ void (*handler)(struct pt_regs *))
{
- write_sysreg(DAIF_PROCCTX_NOIRQ, daif);
+ arm64_enter_nmi(regs);
+ do_interrupt_handler(regs, handler);
+ arm64_exit_nmi(regs);
+}
+
+static __always_inline void __el1_irq(struct pt_regs *regs,
+ void (*handler)(struct pt_regs *))
+{
+ enter_from_kernel_mode(regs);
- enter_el1_irq_or_nmi(regs);
+ irq_enter_rcu();
do_interrupt_handler(regs, handler);
+ irq_exit_rcu();
/*
* Note: thread_info::preempt_count includes both thread_info::count
@@ -449,7 +447,17 @@ static void noinstr el1_interrupt(struct pt_regs *regs,
READ_ONCE(current_thread_info()->preempt_count) == 0)
arm64_preempt_schedule_irq();
- exit_el1_irq_or_nmi(regs);
+ exit_to_kernel_mode(regs);
+}
+static void noinstr el1_interrupt(struct pt_regs *regs,
+ void (*handler)(struct pt_regs *))
+{
+ write_sysreg(DAIF_PROCCTX_NOIRQ, daif);
+
+ if (IS_ENABLED(CONFIG_ARM64_PSEUDO_NMI) && !interrupts_enabled(regs))
+ __el1_pnmi(regs, handler);
+ else
+ __el1_irq(regs, handler);
}
asmlinkage void noinstr el1h_64_irq_handler(struct pt_regs *regs)
@@ -667,7 +675,9 @@ static void noinstr el0_interrupt(struct pt_regs *regs,
if (regs->pc & BIT(55))
arm64_apply_bp_hardening();
+ irq_enter_rcu();
do_interrupt_handler(regs, handler);
+ irq_exit_rcu();
exit_to_user_mode(regs);
}
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
index 9d4d898df76b..e0bd71b9e23f 100644
--- a/arch/csky/Kconfig
+++ b/arch/csky/Kconfig
@@ -17,7 +17,6 @@ config CSKY
select CSKY_APB_INTC
select DMA_DIRECT_REMAP
select IRQ_DOMAIN
- select HANDLE_DOMAIN_IRQ
select DW_APB_TIMER_OF
select GENERIC_IOREMAP
select GENERIC_LIB_ASHLDI3
diff --git a/arch/csky/kernel/entry.S b/arch/csky/kernel/entry.S
index 00e3c8ebf9b8..a4ababf25e24 100644
--- a/arch/csky/kernel/entry.S
+++ b/arch/csky/kernel/entry.S
@@ -249,7 +249,7 @@ ENTRY(csky_irq)
mov a0, sp
- jbsr csky_do_IRQ
+ jbsr generic_handle_arch_irq
jmpi ret_from_exception
diff --git a/arch/csky/kernel/irq.c b/arch/csky/kernel/irq.c
index 03a1930f1cbb..fcdaf3156286 100644
--- a/arch/csky/kernel/irq.c
+++ b/arch/csky/kernel/irq.c
@@ -15,8 +15,3 @@ void __init init_IRQ(void)
setup_smp_ipi();
#endif
}
-
-asmlinkage void __irq_entry csky_do_IRQ(struct pt_regs *regs)
-{
- handle_arch_irq(regs);
-}
diff --git a/arch/h8300/include/asm/irq.h b/arch/h8300/include/asm/irq.h
index 5fc5b436dde9..776cf06d7a59 100644
--- a/arch/h8300/include/asm/irq.h
+++ b/arch/h8300/include/asm/irq.h
@@ -2,8 +2,6 @@
#ifndef _H8300_IRQ_H_
#define _H8300_IRQ_H_
-#include <linux/irqchip.h>
-
#if defined(CONFIG_CPU_H8300H)
#define NR_IRQS 64
#define IRQ_CHIP h8300h_irq_chip
diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c
index 834e4d7b1bcf..8ad6d702cd0b 100644
--- a/arch/h8300/kernel/irq.c
+++ b/arch/h8300/kernel/irq.c
@@ -8,6 +8,7 @@
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
+#include <linux/irqchip.h>
#include <linux/irqdomain.h>
#include <linux/of_irq.h>
#include <asm/traps.h>
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 771ca53af06d..bf172aeaa2c0 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -47,7 +47,6 @@ config MIPS
select GENERIC_SMP_IDLE_THREAD
select GENERIC_TIME_VSYSCALL
select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
- select HANDLE_DOMAIN_IRQ
select HAVE_ARCH_COMPILER_H
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
@@ -1782,6 +1781,7 @@ config CPU_BMIPS
select CPU_HAS_PREFETCH
select CPU_SUPPORTS_CPUFREQ
select MIPS_EXTERNAL_TIMER
+ select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
help
Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index be5d4afcd30f..844f882096e6 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -2609,7 +2609,10 @@ static void octeon_irq_ciu3_ip2(void)
else
hw = intsn;
- ret = handle_domain_irq(domain, hw, NULL);
+ irq_enter();
+ ret = generic_handle_domain_irq(domain, hw);
+ irq_exit();
+
if (ret < 0) {
union cvmx_ciu3_iscx_w1c isc_w1c;
u64 isc_w1c_addr = ciu3_addr + CIU3_ISC_W1C(intsn);
diff --git a/arch/mips/kernel/irq.c b/arch/mips/kernel/irq.c
index d20e002b3246..5e11582fe308 100644
--- a/arch/mips/kernel/irq.c
+++ b/arch/mips/kernel/irq.c
@@ -111,15 +111,9 @@ void __irq_entry do_IRQ(unsigned int irq)
#ifdef CONFIG_IRQ_DOMAIN
void __irq_entry do_domain_IRQ(struct irq_domain *domain, unsigned int hwirq)
{
- struct irq_desc *desc;
-
irq_enter();
check_stack_overflow();
-
- desc = irq_resolve_mapping(domain, hwirq);
- if (likely(desc))
- handle_irq_desc(desc);
-
+ generic_handle_domain_irq(domain, hwirq);
irq_exit();
}
#endif
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index b6ef5f7312cf..f5d7bfa3472a 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -26,6 +26,7 @@
#include <linux/bug.h>
#include <linux/kernel.h>
#include <linux/kexec.h>
+#include <linux/irq.h>
#include <asm/time.h>
#include <asm/processor.h>
@@ -373,7 +374,7 @@ static int bmips_cpu_disable(void)
set_cpu_online(cpu, false);
calculate_cpu_foreign_map();
- irq_cpu_offline();
+ irq_migrate_all_off_this_cpu();
clear_c0_status(IE_IRQ5);
local_flush_tlb_all();
diff --git a/arch/mips/loongson64/smp.c b/arch/mips/loongson64/smp.c
index 09ebe84a17fe..660e1de4412a 100644
--- a/arch/mips/loongson64/smp.c
+++ b/arch/mips/loongson64/smp.c
@@ -550,7 +550,6 @@ static int loongson3_cpu_disable(void)
set_cpu_online(cpu, false);
calculate_cpu_foreign_map();
local_irq_save(flags);
- irq_cpu_offline();
clear_c0_status(ST0_IM);
local_irq_restore(flags);
local_flush_tlb_all();
diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig
index aea26e739543..4d1421b18734 100644
--- a/arch/nds32/Kconfig
+++ b/arch/nds32/Kconfig
@@ -27,7 +27,6 @@ config NDS32
select GENERIC_LIB_MULDI3
select GENERIC_LIB_UCMPDI2
select GENERIC_TIME_VSYSCALL
- select HANDLE_DOMAIN_IRQ
select HAVE_ARCH_TRACEHOOK
select HAVE_DEBUG_KMEMLEAK
select HAVE_EXIT_THREAD
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index e804026b4797..c2491b295d60 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -13,7 +13,6 @@ config OPENRISC
select OF
select OF_EARLY_FLATTREE
select IRQ_DOMAIN
- select HANDLE_DOMAIN_IRQ
select GPIOLIB
select HAVE_ARCH_TRACEHOOK
select SPARSE_IRQ
diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S
index edaa775a648e..59c6d3aa7081 100644
--- a/arch/openrisc/kernel/entry.S
+++ b/arch/openrisc/kernel/entry.S
@@ -569,8 +569,8 @@ EXCEPTION_ENTRY(_external_irq_handler)
#endif
CLEAR_LWA_FLAG(r3)
l.addi r3,r1,0
- l.movhi r8,hi(do_IRQ)
- l.ori r8,r8,lo(do_IRQ)
+ l.movhi r8,hi(generic_handle_arch_irq)
+ l.ori r8,r8,lo(generic_handle_arch_irq)
l.jalr r8
l.nop
l.j _ret_from_intr
diff --git a/arch/openrisc/kernel/irq.c b/arch/openrisc/kernel/irq.c
index c38fa863afa8..f38e10962a84 100644
--- a/arch/openrisc/kernel/irq.c
+++ b/arch/openrisc/kernel/irq.c
@@ -36,8 +36,3 @@ void __init init_IRQ(void)
{
irqchip_init();
}
-
-void __irq_entry do_IRQ(struct pt_regs *regs)
-{
- handle_arch_irq(regs);
-}
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 301a54233c7e..353e28f5f849 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -62,7 +62,6 @@ config RISCV
select GENERIC_SCHED_CLOCK
select GENERIC_SMP_IDLE_THREAD
select GENERIC_TIME_VSYSCALL if MMU && 64BIT
- select HANDLE_DOMAIN_IRQ
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
select HAVE_ARCH_JUMP_LABEL_RELATIVE if !XIP_KERNEL
diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S
index 98f502654edd..64236f7efde5 100644
--- a/arch/riscv/kernel/entry.S
+++ b/arch/riscv/kernel/entry.S
@@ -130,8 +130,7 @@ skip_context_tracking:
/* Handle interrupts */
move a0, sp /* pt_regs */
- la a1, handle_arch_irq
- REG_L a1, (a1)
+ la a1, generic_handle_arch_irq
jr a1
1:
/*
diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c
index 921d9d7df400..2f6da845c9ae 100644
--- a/arch/riscv/kernel/smp.c
+++ b/arch/riscv/kernel/smp.c
@@ -140,12 +140,9 @@ void arch_irq_work_raise(void)
void handle_IPI(struct pt_regs *regs)
{
- struct pt_regs *old_regs = set_irq_regs(regs);
unsigned long *pending_ipis = &ipi_data[smp_processor_id()].bits;
unsigned long *stats = ipi_data[smp_processor_id()].stats;
- irq_enter();
-
riscv_clear_ipi();
while (true) {
@@ -156,7 +153,7 @@ void handle_IPI(struct pt_regs *regs)
ops = xchg(pending_ipis, 0);
if (ops == 0)
- goto done;
+ return;
if (ops & (1 << IPI_RESCHEDULE)) {
stats[IPI_RESCHEDULE]++;
@@ -189,10 +186,6 @@ void handle_IPI(struct pt_regs *regs)
/* Order data access and bit testing. */
mb();
}
-
-done:
- irq_exit();
- set_irq_regs(old_regs);
}
static const char * const ipi_names[] = {
diff --git a/arch/x86/include/asm/irq_stack.h b/arch/x86/include/asm/irq_stack.h
index 562854c60808..ea0c5ab31da4 100644
--- a/arch/x86/include/asm/irq_stack.h
+++ b/arch/x86/include/asm/irq_stack.h
@@ -185,6 +185,7 @@
IRQ_CONSTRAINTS, regs, vector); \
}
+#ifndef CONFIG_PREEMPT_RT
#define ASM_CALL_SOFTIRQ \
"call %P[__func] \n"
@@ -201,6 +202,8 @@
__this_cpu_write(hardirq_stack_inuse, false); \
}
+#endif
+
#else /* CONFIG_X86_64 */
/* System vector handlers always run on the stack they interrupted. */
#define run_sysvec_on_irqstack_cond(func, regs) \
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 044902d5a3c4..e5dd6da78713 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -132,6 +132,7 @@ int irq_init_percpu_irqstack(unsigned int cpu)
return 0;
}
+#ifndef CONFIG_PREEMPT_RT
void do_softirq_own_stack(void)
{
struct irq_stack *irqstk;
@@ -148,6 +149,7 @@ void do_softirq_own_stack(void)
call_on_stack(__do_softirq, isp);
}
+#endif
void __handle_irq(struct irq_desc *desc, struct pt_regs *regs)
{
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index aca7b595c4c7..7038957f4a77 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -115,18 +115,24 @@ config BCM6345_L1_IRQ
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config BCM7038_L1_IRQ
- bool
+ tristate "Broadcom STB 7038-style L1/L2 interrupt controller driver"
+ depends on ARCH_BRCMSTB || BMIPS_GENERIC
+ default ARCH_BRCMSTB || BMIPS_GENERIC
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
select GENERIC_IRQ_EFFECTIVE_AFF_MASK
config BCM7120_L2_IRQ
- bool
+ tristate "Broadcom STB 7120-style L2 interrupt controller driver"
+ depends on ARCH_BRCMSTB || BMIPS_GENERIC
+ default ARCH_BRCMSTB || BMIPS_GENERIC
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
config BRCMSTB_L2_IRQ
- bool
+ tristate "Broadcom STB generic L2 interrupt controller driver"
+ depends on ARCH_BCM2835 || ARCH_BRCMSTB || BMIPS_GENERIC
+ default ARCH_BCM2835 || ARCH_BRCMSTB || BMIPS_GENERIC
select GENERIC_IRQ_CHIP
select IRQ_DOMAIN
@@ -400,8 +406,9 @@ config IRQ_UNIPHIER_AIDET
Support for the UniPhier AIDET (ARM Interrupt Detector).
config MESON_IRQ_GPIO
- bool "Meson GPIO Interrupt Multiplexer"
- depends on ARCH_MESON
+ tristate "Meson GPIO Interrupt Multiplexer"
+ depends on ARCH_MESON || COMPILE_TEST
+ default ARCH_MESON
select IRQ_DOMAIN_HIERARCHY
help
Support Meson SoC Family GPIO Interrupt Multiplexer
@@ -602,4 +609,12 @@ config APPLE_AIC
Support for the Apple Interrupt Controller found on Apple Silicon SoCs,
such as the M1.
+config MCHP_EIC
+ bool "Microchip External Interrupt Controller"
+ depends on ARCH_AT91 || COMPILE_TEST
+ select IRQ_DOMAIN
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ Support for Microchip External Interrupt Controller.
+
endmenu
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index f88cbf36a9d2..c1f611cbfbf8 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -116,3 +116,4 @@ obj-$(CONFIG_MACH_REALTEK_RTL) += irq-realtek-rtl.o
obj-$(CONFIG_WPCM450_AIC) += irq-wpcm450-aic.o
obj-$(CONFIG_IRQ_IDT3243X) += irq-idt3243x.o
obj-$(CONFIG_APPLE_AIC) += irq-apple-aic.o
+obj-$(CONFIG_MCHP_EIC) += irq-mchp-eic.o
diff --git a/drivers/irqchip/irq-apple-aic.c b/drivers/irqchip/irq-apple-aic.c
index 6fc145aacaf0..3759dc36cc8f 100644
--- a/drivers/irqchip/irq-apple-aic.c
+++ b/drivers/irqchip/irq-apple-aic.c
@@ -245,7 +245,7 @@ static void __exception_irq_entry aic_handle_irq(struct pt_regs *regs)
irq = FIELD_GET(AIC_EVENT_NUM, event);
if (type == AIC_EVENT_TYPE_HW)
- handle_domain_irq(aic_irqc->hw_domain, irq, regs);
+ generic_handle_domain_irq(aic_irqc->hw_domain, irq);
else if (type == AIC_EVENT_TYPE_IPI && irq == 1)
aic_handle_ipi(regs);
else if (event != 0)
@@ -392,25 +392,25 @@ static void __exception_irq_entry aic_handle_fiq(struct pt_regs *regs)
}
if (TIMER_FIRING(read_sysreg(cntp_ctl_el0)))
- handle_domain_irq(aic_irqc->hw_domain,
- aic_irqc->nr_hw + AIC_TMR_EL0_PHYS, regs);
+ generic_handle_domain_irq(aic_irqc->hw_domain,
+ aic_irqc->nr_hw + AIC_TMR_EL0_PHYS);
if (TIMER_FIRING(read_sysreg(cntv_ctl_el0)))
- handle_domain_irq(aic_irqc->hw_domain,
- aic_irqc->nr_hw + AIC_TMR_EL0_VIRT, regs);
+ generic_handle_domain_irq(aic_irqc->hw_domain,
+ aic_irqc->nr_hw + AIC_TMR_EL0_VIRT);
if (is_kernel_in_hyp_mode()) {
uint64_t enabled = read_sysreg_s(SYS_IMP_APL_VM_TMR_FIQ_ENA_EL2);
if ((enabled & VM_TMR_FIQ_ENABLE_P) &&
TIMER_FIRING(read_sysreg_s(SYS_CNTP_CTL_EL02)))
- handle_domain_irq(aic_irqc->hw_domain,
- aic_irqc->nr_hw + AIC_TMR_EL02_PHYS, regs);
+ generic_handle_domain_irq(aic_irqc->hw_domain,
+ aic_irqc->nr_hw + AIC_TMR_EL02_PHYS);
if ((enabled & VM_TMR_FIQ_ENABLE_V) &&
TIMER_FIRING(read_sysreg_s(SYS_CNTV_CTL_EL02)))
- handle_domain_irq(aic_irqc->hw_domain,
- aic_irqc->nr_hw + AIC_TMR_EL02_VIRT, regs);
+ generic_handle_domain_irq(aic_irqc->hw_domain,
+ aic_irqc->nr_hw + AIC_TMR_EL02_VIRT);
}
if ((read_sysreg_s(SYS_IMP_APL_PMCR0_EL1) & (PMCR0_IMODE | PMCR0_IACT)) ==
@@ -674,7 +674,7 @@ static void aic_handle_ipi(struct pt_regs *regs)
firing = atomic_fetch_andnot(enabled, this_cpu_ptr(&aic_vipi_flag)) & enabled;
for_each_set_bit(i, &firing, AIC_NR_SWIPI)
- handle_domain_irq(aic_irqc->ipi_domain, i, regs);
+ generic_handle_domain_irq(aic_irqc->ipi_domain, i);
/*
* No ordering needed here; at worst this just changes the timing of
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 53e0fb0562c1..80906bfec845 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -589,12 +589,7 @@ static void armada_370_xp_handle_msi_irq(struct pt_regs *regs, bool is_chained)
irq = msinr - PCI_MSI_DOORBELL_START;
- if (is_chained)
- generic_handle_domain_irq(armada_370_xp_msi_inner_domain,
- irq);
- else
- handle_domain_irq(armada_370_xp_msi_inner_domain,
- irq, regs);
+ generic_handle_domain_irq(armada_370_xp_msi_inner_domain, irq);
}
}
#else
@@ -646,8 +641,8 @@ armada_370_xp_handle_irq(struct pt_regs *regs)
break;
if (irqnr > 1) {
- handle_domain_irq(armada_370_xp_mpic_domain,
- irqnr, regs);
+ generic_handle_domain_irq(armada_370_xp_mpic_domain,
+ irqnr);
continue;
}
@@ -666,7 +661,7 @@ armada_370_xp_handle_irq(struct pt_regs *regs)
& IPI_DOORBELL_MASK;
for_each_set_bit(ipi, &ipimask, IPI_DOORBELL_END)
- handle_domain_irq(ipi_domain, ipi, regs);
+ generic_handle_domain_irq(ipi_domain, ipi);
}
#endif
diff --git a/drivers/irqchip/irq-aspeed-vic.c b/drivers/irqchip/irq-aspeed-vic.c
index 58717cd44f99..62ccf2c0c414 100644
--- a/drivers/irqchip/irq-aspeed-vic.c
+++ b/drivers/irqchip/irq-aspeed-vic.c
@@ -100,7 +100,7 @@ static void __exception_irq_entry avic_handle_irq(struct pt_regs *regs)
if (stat == 0)
break;
irq += ffs(stat) - 1;
- handle_domain_irq(vic->dom, irq, regs);
+ generic_handle_domain_irq(vic->dom, irq);
}
}
diff --git a/drivers/irqchip/irq-ativic32.c b/drivers/irqchip/irq-ativic32.c
index 476d6024aaf2..223dd2f97d28 100644
--- a/drivers/irqchip/irq-ativic32.c
+++ b/drivers/irqchip/irq-ativic32.c
@@ -5,11 +5,14 @@
#include <linux/of.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
+#include <linux/hardirq.h>
#include <linux/interrupt.h>
#include <linux/irqdomain.h>
#include <linux/irqchip.h>
#include <nds32_intrinsic.h>
+#include <asm/irq_regs.h>
+
unsigned long wake_mask;
static void ativic32_ack_irq(struct irq_data *data)
@@ -103,10 +106,25 @@ static irq_hw_number_t get_intr_src(void)
- NDS32_VECTOR_offINTERRUPT;
}
-asmlinkage void asm_do_IRQ(struct pt_regs *regs)
+static void ativic32_handle_irq(struct pt_regs *regs)
{
irq_hw_number_t hwirq = get_intr_src();
- handle_domain_irq(root_domain, hwirq, regs);
+ generic_handle_domain_irq(root_domain, hwirq);
+}
+
+/*
+ * TODO: convert nds32 to GENERIC_IRQ_MULTI_HANDLER so that this entry logic
+ * can live in arch code.
+ */
+asmlinkage void asm_do_IRQ(struct pt_regs *regs)
+{
+ struct pt_regs *old_regs;
+
+ irq_enter();
+ old_regs = set_irq_regs(regs);
+ ativic32_handle_irq(regs);
+ set_irq_regs(old_regs);
+ irq_exit();
}
int __init ativic32_init_irq(struct device_node *node, struct device_node *parent)
diff --git a/drivers/irqchip/irq-atmel-aic.c b/drivers/irqchip/irq-atmel-aic.c
index 2c999dc310c1..4631f6847953 100644
--- a/drivers/irqchip/irq-atmel-aic.c
+++ b/drivers/irqchip/irq-atmel-aic.c
@@ -71,7 +71,7 @@ aic_handle(struct pt_regs *regs)
if (!irqstat)
irq_reg_writel(gc, 0, AT91_AIC_EOICR);
else
- handle_domain_irq(aic_domain, irqnr, regs);
+ generic_handle_domain_irq(aic_domain, irqnr);
}
static int aic_retrigger(struct irq_data *d)
diff --git a/drivers/irqchip/irq-atmel-aic5.c b/drivers/irqchip/irq-atmel-aic5.c
index fb4ad2aaa727..145535bd7560 100644
--- a/drivers/irqchip/irq-atmel-aic5.c
+++ b/drivers/irqchip/irq-atmel-aic5.c
@@ -80,7 +80,7 @@ aic5_handle(struct pt_regs *regs)
if (!irqstat)
irq_reg_writel(bgc, 0, AT91_AIC5_EOICR);
else
- handle_domain_irq(aic5_domain, irqnr, regs);
+ generic_handle_domain_irq(aic5_domain, irqnr);
}
static void aic5_mask(struct irq_data *d)
diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c
index adc1556ed332..e94e2882286c 100644
--- a/drivers/irqchip/irq-bcm2835.c
+++ b/drivers/irqchip/irq-bcm2835.c
@@ -246,7 +246,7 @@ static void __exception_irq_entry bcm2835_handle_irq(
u32 hwirq;
while ((hwirq = get_next_armctrl_hwirq()) != ~0)
- handle_domain_irq(intc.domain, hwirq, regs);
+ generic_handle_domain_irq(intc.domain, hwirq);
}
static void bcm2836_chained_handle_irq(struct irq_desc *desc)
diff --git a/drivers/irqchip/irq-bcm2836.c b/drivers/irqchip/irq-bcm2836.c
index 501facdb4570..51491c3c6fdd 100644
--- a/drivers/irqchip/irq-bcm2836.c
+++ b/drivers/irqchip/irq-bcm2836.c
@@ -143,7 +143,7 @@ __exception_irq_entry bcm2836_arm_irqchip_handle_irq(struct pt_regs *regs)
if (stat) {
u32 hwirq = ffs(stat) - 1;
- handle_domain_irq(intc.domain, hwirq, regs);
+ generic_handle_domain_irq(intc.domain, hwirq);
}
}
diff --git a/drivers/irqchip/irq-bcm6345-l1.c b/drivers/irqchip/irq-bcm6345-l1.c
index e3483789f4df..fd079215c17f 100644
--- a/drivers/irqchip/irq-bcm6345-l1.c
+++ b/drivers/irqchip/irq-bcm6345-l1.c
@@ -132,16 +132,12 @@ static void bcm6345_l1_irq_handle(struct irq_desc *desc)
int base = idx * IRQS_PER_WORD;
unsigned long pending;
irq_hw_number_t hwirq;
- unsigned int irq;
pending = __raw_readl(cpu->map_base + reg_status(intc, idx));
pending &= __raw_readl(cpu->map_base + reg_enable(intc, idx));
for_each_set_bit(hwirq, &pending, IRQS_PER_WORD) {
- irq = irq_linear_revmap(intc->domain, base + hwirq);
- if (irq)
- do_IRQ(irq);
- else
+ if (generic_handle_domain_irq(intc->domain, base + hwirq))
spurious_interrupt();
}
}
diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index a035c385ca7a..a62b96237b82 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -28,9 +28,6 @@
#include <linux/irqchip.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/syscore_ops.h>
-#ifdef CONFIG_ARM
-#include <asm/smp_plat.h>
-#endif
#define IRQS_PER_WORD 32
#define REG_BYTES_PER_IRQ_WORD (sizeof(u32) * 4)
@@ -127,7 +124,7 @@ static void bcm7038_l1_irq_handle(struct irq_desc *desc)
struct irq_chip *chip = irq_desc_get_chip(desc);
unsigned int idx;
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS)
cpu = intc->cpus[cpu_logical_map(smp_processor_id())];
#else
cpu = intc->cpus[0];
@@ -194,6 +191,7 @@ static void bcm7038_l1_mask(struct irq_data *d)
raw_spin_unlock_irqrestore(&intc->lock, flags);
}
+#if defined(CONFIG_MIPS) && defined(CONFIG_SMP)
static int bcm7038_l1_set_affinity(struct irq_data *d,
const struct cpumask *dest,
bool force)
@@ -220,32 +218,6 @@ static int bcm7038_l1_set_affinity(struct irq_data *d,
return 0;
}
-
-#ifdef CONFIG_SMP
-static void bcm7038_l1_cpu_offline(struct irq_data *d)
-{
- struct cpumask *mask = irq_data_get_affinity_mask(d);
- int cpu = smp_processor_id();
- cpumask_t new_affinity;
-
- /* This CPU was not on the affinity mask */
- if (!cpumask_test_cpu(cpu, mask))
- return;
-
- if (cpumask_weight(mask) > 1) {
- /*
- * Multiple CPU affinity, remove this CPU from the affinity
- * mask
- */
- cpumask_copy(&new_affinity, mask);
- cpumask_clear_cpu(cpu, &new_affinity);
- } else {
- /* Only CPU, put on the lowest online CPU */
- cpumask_clear(&new_affinity);
- cpumask_set_cpu(cpumask_first(cpu_online_mask), &new_affinity);
- }
- irq_set_affinity_locked(d, &new_affinity, false);
-}
#endif
static int __init bcm7038_l1_init_one(struct device_node *dn,
@@ -328,7 +300,7 @@ static int bcm7038_l1_suspend(void)
u32 val;
/* Wakeup interrupt should only come from the boot cpu */
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS)
boot_cpu = cpu_logical_map(0);
#else
boot_cpu = 0;
@@ -352,7 +324,7 @@ static void bcm7038_l1_resume(void)
struct bcm7038_l1_chip *intc;
int boot_cpu, word;
-#ifdef CONFIG_SMP
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS)
boot_cpu = cpu_logical_map(0);
#else
boot_cpu = 0;
@@ -395,9 +367,8 @@ static struct irq_chip bcm7038_l1_irq_chip = {
.name = "bcm7038-l1",
.irq_mask = bcm7038_l1_mask,
.irq_unmask = bcm7038_l1_unmask,
+#if defined(CONFIG_SMP) && defined(CONFIG_MIPS)
.irq_set_affinity = bcm7038_l1_set_affinity,
-#ifdef CONFIG_SMP
- .irq_cpu_offline = bcm7038_l1_cpu_offline,
#endif
#ifdef CONFIG_PM_SLEEP
.irq_set_wake = bcm7038_l1_set_wake,
@@ -416,7 +387,7 @@ static int bcm7038_l1_map(struct irq_domain *d, unsigned int virq,
irq_set_chip_and_handler(virq, &bcm7038_l1_irq_chip, handle_level_irq);
irq_set_chip_data(virq, d->host_data);
- irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(virq)));
+ irqd_set_single_target(irq_get_irq_data(virq));
return 0;
}
@@ -484,4 +455,8 @@ static int __init bcm7038_l1_of_init(struct device_node *dn,
return ret;
}
-IRQCHIP_DECLARE(bcm7038_l1, "brcm,bcm7038-l1-intc", bcm7038_l1_of_init);
+IRQCHIP_PLATFORM_DRIVER_BEGIN(bcm7038_l1)
+IRQCHIP_MATCH("brcm,bcm7038-l1-intc", bcm7038_l1_of_init)
+IRQCHIP_PLATFORM_DRIVER_END(bcm7038_l1)
+MODULE_DESCRIPTION("Broadcom STB 7038-style L1/L2 interrupt controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/irqchip/irq-bcm7120-l2.c b/drivers/irqchip/irq-bcm7120-l2.c
index f23d7651ea84..d80e67a6aad2 100644
--- a/drivers/irqchip/irq-bcm7120-l2.c
+++ b/drivers/irqchip/irq-bcm7120-l2.c
@@ -220,6 +220,7 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
{
unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
struct bcm7120_l2_intc_data *data;
+ struct platform_device *pdev;
struct irq_chip_generic *gc;
struct irq_chip_type *ct;
int ret = 0;
@@ -230,7 +231,13 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
if (!data)
return -ENOMEM;
- data->num_parent_irqs = of_irq_count(dn);
+ pdev = of_find_device_by_node(dn);
+ if (!pdev) {
+ ret = -ENODEV;
+ goto out_free_data;
+ }
+
+ data->num_parent_irqs = platform_irq_count(pdev);
if (data->num_parent_irqs <= 0) {
pr_err("invalid number of parent interrupts\n");
ret = -ENOMEM;
@@ -329,6 +336,7 @@ static int __init bcm7120_l2_intc_probe(struct device_node *dn,
if (data->map_base[idx])
iounmap(data->map_base[idx]);
}
+out_free_data:
kfree(data);
return ret;
}
@@ -347,8 +355,9 @@ static int __init bcm7120_l2_intc_probe_3380(struct device_node *dn,
"BCM3380 L2");
}
-IRQCHIP_DECLARE(bcm7120_l2_intc, "brcm,bcm7120-l2-intc",
- bcm7120_l2_intc_probe_7120);
-
-IRQCHIP_DECLARE(bcm3380_l2_intc, "brcm,bcm3380-l2-intc",
- bcm7120_l2_intc_probe_3380);
+IRQCHIP_PLATFORM_DRIVER_BEGIN(bcm7120_l2)
+IRQCHIP_MATCH("brcm,bcm7120-l2-intc", bcm7120_l2_intc_probe_7120)
+IRQCHIP_MATCH("brcm,bcm3380-l2-intc", bcm7120_l2_intc_probe_3380)
+IRQCHIP_PLATFORM_DRIVER_END(bcm7120_l2)
+MODULE_DESCRIPTION("Broadcom STB 7120-style L2 interrupt controller driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index 8e0911561f2d..e4efc08ac594 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -275,16 +275,18 @@ static int __init brcmstb_l2_edge_intc_of_init(struct device_node *np,
{
return brcmstb_l2_intc_of_init(np, parent, &l2_edge_intc_init);
}
-IRQCHIP_DECLARE(brcmstb_l2_intc, "brcm,l2-intc", brcmstb_l2_edge_intc_of_init);
-IRQCHIP_DECLARE(brcmstb_hif_spi_l2_intc, "brcm,hif-spi-l2-intc",
- brcmstb_l2_edge_intc_of_init);
-IRQCHIP_DECLARE(brcmstb_upg_aux_aon_l2_intc, "brcm,upg-aux-aon-l2-intc",
- brcmstb_l2_edge_intc_of_init);
static int __init brcmstb_l2_lvl_intc_of_init(struct device_node *np,
struct device_node *parent)
{
return brcmstb_l2_intc_of_init(np, parent, &l2_lvl_intc_init);
}
-IRQCHIP_DECLARE(bcm7271_l2_intc, "brcm,bcm7271-l2-intc",
- brcmstb_l2_lvl_intc_of_init);
+
+IRQCHIP_PLATFORM_DRIVER_BEGIN(brcmstb_l2)
+IRQCHIP_MATCH("brcm,l2-intc", brcmstb_l2_edge_intc_of_init)
+IRQCHIP_MATCH("brcm,hif-spi-l2-intc", brcmstb_l2_edge_intc_of_init)
+IRQCHIP_MATCH("brcm,upg-aux-aon-l2-intc", brcmstb_l2_edge_intc_of_init)
+IRQCHIP_MATCH("brcm,bcm7271-l2-intc", brcmstb_l2_lvl_intc_of_init)
+IRQCHIP_PLATFORM_DRIVER_END(brcmstb_l2)
+MODULE_DESCRIPTION("Broadcom STB generic L2 interrupt controller");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/irqchip/irq-clps711x.c b/drivers/irqchip/irq-clps711x.c
index d0da29aeedc8..77ebe7e47e0e 100644
--- a/drivers/irqchip/irq-clps711x.c
+++ b/drivers/irqchip/irq-clps711x.c
@@ -77,14 +77,14 @@ static asmlinkage void __exception_irq_entry clps711x_irqh(struct pt_regs *regs)
irqstat = readw_relaxed(clps711x_intc->intmr[0]) &
readw_relaxed(clps711x_intc->intsr[0]);
if (irqstat)
- handle_domain_irq(clps711x_intc->domain,
- fls(irqstat) - 1, regs);
+ generic_handle_domain_irq(clps711x_intc->domain,
+ fls(irqstat) - 1);
irqstat = readw_relaxed(clps711x_intc->intmr[1]) &
readw_relaxed(clps711x_intc->intsr[1]);
if (irqstat)
- handle_domain_irq(clps711x_intc->domain,
- fls(irqstat) - 1 + 16, regs);
+ generic_handle_domain_irq(clps711x_intc->domain,
+ fls(irqstat) - 1 + 16);
} while (irqstat);
}
diff --git a/drivers/irqchip/irq-csky-apb-intc.c b/drivers/irqchip/irq-csky-apb-intc.c
index ab91afa86755..d36f536506ba 100644
--- a/drivers/irqchip/irq-csky-apb-intc.c
+++ b/drivers/irqchip/irq-csky-apb-intc.c
@@ -138,7 +138,7 @@ static inline bool handle_irq_perbit(struct pt_regs *regs, u32 hwirq,
if (hwirq == 0)
return 0;
- handle_domain_irq(root_domain, irq_base + __fls(hwirq), regs);
+ generic_handle_domain_irq(root_domain, irq_base + __fls(hwirq));
return 1;
}
diff --git a/drivers/irqchip/irq-csky-mpintc.c b/drivers/irqchip/irq-csky-mpintc.c
index a1534edef7fa..cb403c960ac0 100644
--- a/drivers/irqchip/irq-csky-mpintc.c
+++ b/drivers/irqchip/irq-csky-mpintc.c
@@ -74,8 +74,8 @@ static void csky_mpintc_handler(struct pt_regs *regs)
{
void __iomem *reg_base = this_cpu_read(intcl_reg);
- handle_domain_irq(root_domain,
- readl_relaxed(reg_base + INTCL_RDYIR), regs);
+ generic_handle_domain_irq(root_domain,
+ readl_relaxed(reg_base + INTCL_RDYIR));
}
static void csky_mpintc_enable(struct irq_data *d)
diff --git a/drivers/irqchip/irq-davinci-aintc.c b/drivers/irqchip/irq-davinci-aintc.c
index 810ccc4fe476..123eb7bfc117 100644
--- a/drivers/irqchip/irq-davinci-aintc.c
+++ b/drivers/irqchip/irq-davinci-aintc.c
@@ -73,7 +73,7 @@ davinci_aintc_handle_irq(struct pt_regs *regs)
irqnr >>= 2;
irqnr -= 1;
- handle_domain_irq(davinci_aintc_irq_domain, irqnr, regs);
+ generic_handle_domain_irq(davinci_aintc_irq_domain, irqnr);
}
/* ARM Interrupt Controller Initialization */
diff --git a/drivers/irqchip/irq-davinci-cp-intc.c b/drivers/irqchip/irq-davinci-cp-intc.c
index 276da2772e7f..7482c8ed34b2 100644
--- a/drivers/irqchip/irq-davinci-cp-intc.c
+++ b/drivers/irqchip/irq-davinci-cp-intc.c
@@ -135,7 +135,7 @@ davinci_cp_intc_handle_irq(struct pt_regs *regs)
return;
}
- handle_domain_irq(davinci_cp_intc_irq_domain, irqnr, regs);
+ generic_handle_domain_irq(davinci_cp_intc_irq_domain, irqnr);
}
static int davinci_cp_intc_host_map(struct irq_domain *h, unsigned int virq,
diff --git a/drivers/irqchip/irq-digicolor.c b/drivers/irqchip/irq-digicolor.c
index fc38d2da11b9..3b0d78aac13b 100644
--- a/drivers/irqchip/irq-digicolor.c
+++ b/drivers/irqchip/irq-digicolor.c
@@ -50,7 +50,7 @@ static void __exception_irq_entry digicolor_handle_irq(struct pt_regs *regs)
return;
}
- handle_domain_irq(digicolor_irq_domain, hwirq, regs);
+ generic_handle_domain_irq(digicolor_irq_domain, hwirq);
} while (1);
}
diff --git a/drivers/irqchip/irq-dw-apb-ictl.c b/drivers/irqchip/irq-dw-apb-ictl.c
index a67266e44491..d5c1c750c8d2 100644
--- a/drivers/irqchip/irq-dw-apb-ictl.c
+++ b/drivers/irqchip/irq-dw-apb-ictl.c
@@ -42,7 +42,7 @@ static void __irq_entry dw_apb_ictl_handle_irq(struct pt_regs *regs)
while (stat) {
u32 hwirq = ffs(stat) - 1;
- handle_domain_irq(d, hwirq, regs);
+ generic_handle_domain_irq(d, hwirq);
stat &= ~BIT(hwirq);
}
}
diff --git a/drivers/irqchip/irq-ftintc010.c b/drivers/irqchip/irq-ftintc010.c
index 0bf98425dca5..5cc268880f8e 100644
--- a/drivers/irqchip/irq-ftintc010.c
+++ b/drivers/irqchip/irq-ftintc010.c
@@ -134,7 +134,7 @@ asmlinkage void __exception_irq_entry ft010_irqchip_handle_irq(struct pt_regs *r
while ((status = readl(FT010_IRQ_STATUS(f->base)))) {
irq = ffs(status) - 1;
- handle_domain_irq(f->domain, irq, regs);
+ generic_handle_domain_irq(f->domain, irq);
}
}
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index fd4e9a37fea6..daec3309b014 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -660,7 +660,7 @@ static inline void gic_handle_nmi(u32 irqnr, struct pt_regs *regs)
* PSR.I will be restored when we ERET to the
* interrupted context.
*/
- err = handle_domain_nmi(gic_data.domain, irqnr, regs);
+ err = generic_handle_domain_nmi(gic_data.domain, irqnr);
if (err)
gic_deactivate_unhandled(irqnr);
@@ -728,7 +728,7 @@ static asmlinkage void __exception_irq_entry gic_handle_irq(struct pt_regs *regs
else
isb();
- if (handle_domain_irq(gic_data.domain, irqnr, regs)) {
+ if (generic_handle_domain_irq(gic_data.domain, irqnr)) {
WARN_ONCE(true, "Unexpected interrupt received!\n");
gic_deactivate_unhandled(irqnr);
}
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 5f22c9d65e57..b8bb46c65a97 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -369,7 +369,7 @@ static void __exception_irq_entry gic_handle_irq(struct pt_regs *regs)
this_cpu_write(sgi_intid, irqstat);
}
- handle_domain_irq(gic->domain, irqnr, regs);
+ generic_handle_domain_irq(gic->domain, irqnr);
} while (1);
}
diff --git a/drivers/irqchip/irq-hip04.c b/drivers/irqchip/irq-hip04.c
index 058ebaebe2c4..46161f6ff289 100644
--- a/drivers/irqchip/irq-hip04.c
+++ b/drivers/irqchip/irq-hip04.c
@@ -206,7 +206,7 @@ static void __exception_irq_entry hip04_handle_irq(struct pt_regs *regs)
irqnr = irqstat & GICC_IAR_INT_ID_MASK;
if (irqnr <= HIP04_MAX_IRQS)
- handle_domain_irq(hip04_data.domain, irqnr, regs);
+ generic_handle_domain_irq(hip04_data.domain, irqnr);
} while (irqnr > HIP04_MAX_IRQS);
}
diff --git a/drivers/irqchip/irq-ixp4xx.c b/drivers/irqchip/irq-ixp4xx.c
index 37e0749215c7..fb68f8c59fbb 100644
--- a/drivers/irqchip/irq-ixp4xx.c
+++ b/drivers/irqchip/irq-ixp4xx.c
@@ -114,7 +114,7 @@ asmlinkage void __exception_irq_entry ixp4xx_handle_irq(struct pt_regs *regs)
status = __raw_readl(ixi->irqbase + IXP4XX_ICIP);
for_each_set_bit(i, &status, 32)
- handle_domain_irq(ixi->domain, i, regs);
+ generic_handle_domain_irq(ixi->domain, i);
/*
* IXP465/IXP435 has an upper IRQ status register
@@ -122,7 +122,7 @@ asmlinkage void __exception_irq_entry ixp4xx_handle_irq(struct pt_regs *regs)
if (ixi->is_356) {
status = __raw_readl(ixi->irqbase + IXP4XX_ICIP2);
for_each_set_bit(i, &status, 32)
- handle_domain_irq(ixi->domain, i + 32, regs);
+ generic_handle_domain_irq(ixi->domain, i + 32);
}
}
diff --git a/drivers/irqchip/irq-lpc32xx.c b/drivers/irqchip/irq-lpc32xx.c
index 5e6f6e25f2ae..a29357f39450 100644
--- a/drivers/irqchip/irq-lpc32xx.c
+++ b/drivers/irqchip/irq-lpc32xx.c
@@ -126,7 +126,7 @@ static void __exception_irq_entry lpc32xx_handle_irq(struct pt_regs *regs)
while (hwirq) {
irq = __ffs(hwirq);
hwirq &= ~BIT(irq);
- handle_domain_irq(lpc32xx_mic_irqc->domain, irq, regs);
+ generic_handle_domain_irq(lpc32xx_mic_irqc->domain, irq);
}
}
diff --git a/drivers/irqchip/irq-mchp-eic.c b/drivers/irqchip/irq-mchp-eic.c
new file mode 100644
index 000000000000..c726a19837d2
--- /dev/null
+++ b/drivers/irqchip/irq-mchp-eic.c
@@ -0,0 +1,280 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Microchip External Interrupt Controller driver
+ *
+ * Copyright (C) 2021 Microchip Technology Inc. and its subsidiaries
+ *
+ * Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
+ */
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/irqchip.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/syscore_ops.h>
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+#define MCHP_EIC_GFCS (0x0)
+#define MCHP_EIC_SCFG(x) (0x4 + (x) * 0x4)
+#define MCHP_EIC_SCFG_EN BIT(16)
+#define MCHP_EIC_SCFG_LVL BIT(9)
+#define MCHP_EIC_SCFG_POL BIT(8)
+
+#define MCHP_EIC_NIRQ (2)
+
+/*
+ * struct mchp_eic - EIC private data structure
+ * @base: base address
+ * @clk: peripheral clock
+ * @domain: irq domain
+ * @irqs: irqs b/w eic and gic
+ * @scfg: backup for scfg registers (necessary for backup and self-refresh mode)
+ * @wakeup_source: wakeup source mask
+ */
+struct mchp_eic {
+ void __iomem *base;
+ struct clk *clk;
+ struct irq_domain *domain;
+ u32 irqs[MCHP_EIC_NIRQ];
+ u32 scfg[MCHP_EIC_NIRQ];
+ u32 wakeup_source;
+};
+
+static struct mchp_eic *eic;
+
+static void mchp_eic_irq_mask(struct irq_data *d)
+{
+ unsigned int tmp;
+
+ tmp = readl_relaxed(eic->base + MCHP_EIC_SCFG(d->hwirq));
+ tmp &= ~MCHP_EIC_SCFG_EN;
+ writel_relaxed(tmp, eic->base + MCHP_EIC_SCFG(d->hwirq));
+
+ irq_chip_mask_parent(d);
+}
+
+static void mchp_eic_irq_unmask(struct irq_data *d)
+{
+ unsigned int tmp;
+
+ tmp = readl_relaxed(eic->base + MCHP_EIC_SCFG(d->hwirq));
+ tmp |= MCHP_EIC_SCFG_EN;
+ writel_relaxed(tmp, eic->base + MCHP_EIC_SCFG(d->hwirq));
+
+ irq_chip_unmask_parent(d);
+}
+
+static int mchp_eic_irq_set_type(struct irq_data *d, unsigned int type)
+{
+ unsigned int parent_irq_type;
+ unsigned int tmp;
+
+ tmp = readl_relaxed(eic->base + MCHP_EIC_SCFG(d->hwirq));
+ tmp &= ~(MCHP_EIC_SCFG_POL | MCHP_EIC_SCFG_LVL);
+ switch (type) {
+ case IRQ_TYPE_LEVEL_HIGH:
+ tmp |= MCHP_EIC_SCFG_POL | MCHP_EIC_SCFG_LVL;
+ parent_irq_type = IRQ_TYPE_LEVEL_HIGH;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ tmp |= MCHP_EIC_SCFG_LVL;
+ parent_irq_type = IRQ_TYPE_LEVEL_HIGH;
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ parent_irq_type = IRQ_TYPE_EDGE_RISING;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ tmp |= MCHP_EIC_SCFG_POL;
+ parent_irq_type = IRQ_TYPE_EDGE_RISING;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ writel_relaxed(tmp, eic->base + MCHP_EIC_SCFG(d->hwirq));
+
+ return irq_chip_set_type_parent(d, parent_irq_type);
+}
+
+static int mchp_eic_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+ irq_set_irq_wake(eic->irqs[d->hwirq], on);
+ if (on)
+ eic->wakeup_source |= BIT(d->hwirq);
+ else
+ eic->wakeup_source &= ~BIT(d->hwirq);
+
+ return 0;
+}
+
+static int mchp_eic_irq_suspend(void)
+{
+ unsigned int hwirq;
+
+ for (hwirq = 0; hwirq < MCHP_EIC_NIRQ; hwirq++)
+ eic->scfg[hwirq] = readl_relaxed(eic->base +
+ MCHP_EIC_SCFG(hwirq));
+
+ if (!eic->wakeup_source)
+ clk_disable_unprepare(eic->clk);
+
+ return 0;
+}
+
+static void mchp_eic_irq_resume(void)
+{
+ unsigned int hwirq;
+
+ if (!eic->wakeup_source)
+ clk_prepare_enable(eic->clk);
+
+ for (hwirq = 0; hwirq < MCHP_EIC_NIRQ; hwirq++)
+ writel_relaxed(eic->scfg[hwirq], eic->base +
+ MCHP_EIC_SCFG(hwirq));
+}
+
+static struct syscore_ops mchp_eic_syscore_ops = {
+ .suspend = mchp_eic_irq_suspend,
+ .resume = mchp_eic_irq_resume,
+};
+
+static struct irq_chip mchp_eic_chip = {
+ .name = "eic",
+ .flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SET_TYPE_MASKED,
+ .irq_mask = mchp_eic_irq_mask,
+ .irq_unmask = mchp_eic_irq_unmask,
+ .irq_set_type = mchp_eic_irq_set_type,
+ .irq_ack = irq_chip_ack_parent,
+ .irq_eoi = irq_chip_eoi_parent,
+ .irq_retrigger = irq_chip_retrigger_hierarchy,
+ .irq_set_wake = mchp_eic_irq_set_wake,
+};
+
+static int mchp_eic_domain_alloc(struct irq_domain *domain, unsigned int virq,
+ unsigned int nr_irqs, void *data)
+{
+ struct irq_fwspec *fwspec = data;
+ struct irq_fwspec parent_fwspec;
+ irq_hw_number_t hwirq;
+ unsigned int type;
+ int ret;
+
+ if (WARN_ON(nr_irqs != 1))
+ return -EINVAL;
+
+ ret = irq_domain_translate_twocell(domain, fwspec, &hwirq, &type);
+ if (ret || hwirq >= MCHP_EIC_NIRQ)
+ return ret;
+
+ switch (type) {
+ case IRQ_TYPE_EDGE_RISING:
+ case IRQ_TYPE_LEVEL_HIGH:
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ type = IRQ_TYPE_EDGE_RISING;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ type = IRQ_TYPE_LEVEL_HIGH;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ irq_domain_set_hwirq_and_chip(domain, virq, hwirq, &mchp_eic_chip, eic);
+
+ parent_fwspec.fwnode = domain->parent->fwnode;
+ parent_fwspec.param_count = 3;
+ parent_fwspec.param[0] = GIC_SPI;
+ parent_fwspec.param[1] = eic->irqs[hwirq];
+ parent_fwspec.param[2] = type;
+
+ return irq_domain_alloc_irqs_parent(domain, virq, 1, &parent_fwspec);
+}
+
+static const struct irq_domain_ops mchp_eic_domain_ops = {
+ .translate = irq_domain_translate_twocell,
+ .alloc = mchp_eic_domain_alloc,
+ .free = irq_domain_free_irqs_common,
+};
+
+static int mchp_eic_init(struct device_node *node, struct device_node *parent)
+{
+ struct irq_domain *parent_domain = NULL;
+ int ret, i;
+
+ eic = kzalloc(sizeof(*eic), GFP_KERNEL);
+ if (!eic)
+ return -ENOMEM;
+
+ eic->base = of_iomap(node, 0);
+ if (!eic->base) {
+ ret = -ENOMEM;
+ goto free;
+ }
+
+ parent_domain = irq_find_host(parent);
+ if (!parent_domain) {
+ ret = -ENODEV;
+ goto unmap;
+ }
+
+ eic->clk = of_clk_get_by_name(node, "pclk");
+ if (IS_ERR(eic->clk)) {
+ ret = PTR_ERR(eic->clk);
+ goto unmap;
+ }
+
+ ret = clk_prepare_enable(eic->clk);
+ if (ret)
+ goto unmap;
+
+ for (i = 0; i < MCHP_EIC_NIRQ; i++) {
+ struct of_phandle_args irq;
+
+ /* Disable it, if any. */
+ writel_relaxed(0UL, eic->base + MCHP_EIC_SCFG(i));
+
+ ret = of_irq_parse_one(node, i, &irq);
+ if (ret)
+ goto clk_unprepare;
+
+ if (WARN_ON(irq.args_count != 3)) {
+ ret = -EINVAL;
+ goto clk_unprepare;
+ }
+
+ eic->irqs[i] = irq.args[1];
+ }
+
+ eic->domain = irq_domain_add_hierarchy(parent_domain, 0, MCHP_EIC_NIRQ,
+ node, &mchp_eic_domain_ops, eic);
+ if (!eic->domain) {
+ pr_err("%pOF: Failed to add domain\n", node);
+ ret = -ENODEV;
+ goto clk_unprepare;
+ }
+
+ register_syscore_ops(&mchp_eic_syscore_ops);
+
+ pr_info("%pOF: EIC registered, nr_irqs %u\n", node, MCHP_EIC_NIRQ);
+
+ return 0;
+
+clk_unprepare:
+ clk_disable_unprepare(eic->clk);
+unmap:
+ iounmap(eic->base);
+free:
+ kfree(eic);
+ return ret;
+}
+
+IRQCHIP_PLATFORM_DRIVER_BEGIN(mchp_eic)
+IRQCHIP_MATCH("microchip,sama7g5-eic", mchp_eic_init)
+IRQCHIP_PLATFORM_DRIVER_END(mchp_eic)
+
+MODULE_DESCRIPTION("Microchip External Interrupt Controller");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>");
diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c
index e50676ce2ec8..d90ff0b92480 100644
--- a/drivers/irqchip/irq-meson-gpio.c
+++ b/drivers/irqchip/irq-meson-gpio.c
@@ -436,8 +436,7 @@ static const struct irq_domain_ops meson_gpio_irq_domain_ops = {
.translate = meson_gpio_irq_domain_translate,
};
-static int __init meson_gpio_irq_parse_dt(struct device_node *node,
- struct meson_gpio_irq_controller *ctl)
+static int meson_gpio_irq_parse_dt(struct device_node *node, struct meson_gpio_irq_controller *ctl)
{
const struct of_device_id *match;
int ret;
@@ -463,8 +462,7 @@ static int __init meson_gpio_irq_parse_dt(struct device_node *node,
return 0;
}
-static int __init meson_gpio_irq_of_init(struct device_node *node,
- struct device_node *parent)
+static int meson_gpio_irq_of_init(struct device_node *node, struct device_node *parent)
{
struct irq_domain *domain, *parent_domain;
struct meson_gpio_irq_controller *ctl;
@@ -521,5 +519,10 @@ static int __init meson_gpio_irq_of_init(struct device_node *node,
return ret;
}
-IRQCHIP_DECLARE(meson_gpio_intc, "amlogic,meson-gpio-intc",
- meson_gpio_irq_of_init);
+IRQCHIP_PLATFORM_DRIVER_BEGIN(meson_gpio_intc)
+IRQCHIP_MATCH("amlogic,meson-gpio-intc", meson_gpio_irq_of_init)
+IRQCHIP_PLATFORM_DRIVER_END(meson_gpio_intc)
+
+MODULE_AUTHOR("Jerome Brunet <jbrunet@xxxxxxxxxxxx>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:meson-gpio-intc");
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 54c7092cc61d..d02b05a067d9 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -381,24 +381,35 @@ static void gic_unmask_local_irq_all_vpes(struct irq_data *d)
spin_unlock_irqrestore(&gic_lock, flags);
}
-static void gic_all_vpes_irq_cpu_online(struct irq_data *d)
+static void gic_all_vpes_irq_cpu_online(void)
{
- struct gic_all_vpes_chip_data *cd;
- unsigned int intr;
+ static const unsigned int local_intrs[] = {
+ GIC_LOCAL_INT_TIMER,
+ GIC_LOCAL_INT_PERFCTR,
+ GIC_LOCAL_INT_FDC,
+ };
+ unsigned long flags;
+ int i;
- intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
- cd = irq_data_get_irq_chip_data(d);
+ spin_lock_irqsave(&gic_lock, flags);
- write_gic_vl_map(mips_gic_vx_map_reg(intr), cd->map);
- if (cd->mask)
- write_gic_vl_smask(BIT(intr));
+ for (i = 0; i < ARRAY_SIZE(local_intrs); i++) {
+ unsigned int intr = local_intrs[i];
+ struct gic_all_vpes_chip_data *cd;
+
+ cd = &gic_all_vpes_chip_data[intr];
+ write_gic_vl_map(mips_gic_vx_map_reg(intr), cd->map);
+ if (cd->mask)
+ write_gic_vl_smask(BIT(intr));
+ }
+
+ spin_unlock_irqrestore(&gic_lock, flags);
}
static struct irq_chip gic_all_vpes_local_irq_controller = {
.name = "MIPS GIC Local",
.irq_mask = gic_mask_local_irq_all_vpes,
.irq_unmask = gic_unmask_local_irq_all_vpes,
- .irq_cpu_online = gic_all_vpes_irq_cpu_online,
};
static void __gic_irq_dispatch(void)
@@ -477,6 +488,10 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
intr = GIC_HWIRQ_TO_LOCAL(hwirq);
map = GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin;
+ /*
+ * If adding support for more per-cpu interrupts, keep the the
+ * array in gic_all_vpes_irq_cpu_online() in sync.
+ */
switch (intr) {
case GIC_LOCAL_INT_TIMER:
/* CONFIG_MIPS_CMP workaround (see __gic_init) */
@@ -663,8 +678,8 @@ static int gic_cpu_startup(unsigned int cpu)
/* Clear all local IRQ masks (ie. disable all local interrupts) */
write_gic_vl_rmask(~0);
- /* Invoke irq_cpu_online callbacks to enable desired interrupts */
- irq_cpu_online();
+ /* Enable desired interrupts */
+ gic_all_vpes_irq_cpu_online();
return 0;
}
diff --git a/drivers/irqchip/irq-mmp.c b/drivers/irqchip/irq-mmp.c
index 4a74ac7b7c42..83455ca72439 100644
--- a/drivers/irqchip/irq-mmp.c
+++ b/drivers/irqchip/irq-mmp.c
@@ -230,7 +230,7 @@ static void __exception_irq_entry mmp_handle_irq(struct pt_regs *regs)
if (!(hwirq & SEL_INT_PENDING))
return;
hwirq &= SEL_INT_NUM_MASK;
- handle_domain_irq(icu_data[0].domain, hwirq, regs);
+ generic_handle_domain_irq(icu_data[0].domain, hwirq);
}
static void __exception_irq_entry mmp2_handle_irq(struct pt_regs *regs)
@@ -241,7 +241,7 @@ static void __exception_irq_entry mmp2_handle_irq(struct pt_regs *regs)
if (!(hwirq & SEL_INT_PENDING))
return;
hwirq &= SEL_INT_NUM_MASK;
- handle_domain_irq(icu_data[0].domain, hwirq, regs);
+ generic_handle_domain_irq(icu_data[0].domain, hwirq);
}
/* MMP (ARMv5) */
diff --git a/drivers/irqchip/irq-mvebu-icu.c b/drivers/irqchip/irq-mvebu-icu.c
index 090bc3f4f7d8..3e7297fc5948 100644
--- a/drivers/irqchip/irq-mvebu-icu.c
+++ b/drivers/irqchip/irq-mvebu-icu.c
@@ -347,7 +347,6 @@ builtin_platform_driver(mvebu_icu_subset_driver);
static int mvebu_icu_probe(struct platform_device *pdev)
{
struct mvebu_icu *icu;
- struct resource *res;
int i;
icu = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_icu),
@@ -357,8 +356,7 @@ static int mvebu_icu_probe(struct platform_device *pdev)
icu->dev = &pdev->dev;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- icu->base = devm_ioremap_resource(&pdev->dev, res);
+ icu->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(icu->base))
return PTR_ERR(icu->base);
diff --git a/drivers/irqchip/irq-mvebu-pic.c b/drivers/irqchip/irq-mvebu-pic.c
index dc1cee4b0fe1..870f9866b8da 100644
--- a/drivers/irqchip/irq-mvebu-pic.c
+++ b/drivers/irqchip/irq-mvebu-pic.c
@@ -121,14 +121,12 @@ static int mvebu_pic_probe(struct platform_device *pdev)
struct device_node *node = pdev->dev.of_node;
struct mvebu_pic *pic;
struct irq_chip *irq_chip;
- struct resource *res;
pic = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_pic), GFP_KERNEL);
if (!pic)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- pic->base = devm_ioremap_resource(&pdev->dev, res);
+ pic->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(pic->base))
return PTR_ERR(pic->base);
diff --git a/drivers/irqchip/irq-mxs.c b/drivers/irqchip/irq-mxs.c
index d1f5740cd575..55cb6b5a686e 100644
--- a/drivers/irqchip/irq-mxs.c
+++ b/drivers/irqchip/irq-mxs.c
@@ -136,7 +136,7 @@ asmlinkage void __exception_irq_entry icoll_handle_irq(struct pt_regs *regs)
irqnr = __raw_readl(icoll_priv.stat);
__raw_writel(irqnr, icoll_priv.vector);
- handle_domain_irq(icoll_domain, irqnr, regs);
+ generic_handle_domain_irq(icoll_domain, irqnr);
}
static int icoll_irq_domain_map(struct irq_domain *d, unsigned int virq,
diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c
index b31c4cff4d3a..63bac3f78863 100644
--- a/drivers/irqchip/irq-nvic.c
+++ b/drivers/irqchip/irq-nvic.c
@@ -37,10 +37,25 @@
static struct irq_domain *nvic_irq_domain;
+static void __nvic_handle_irq(irq_hw_number_t hwirq)
+{
+ generic_handle_domain_irq(nvic_irq_domain, hwirq);
+}
+
+/*
+ * TODO: restructure the ARMv7M entry logic so that this entry logic can live
+ * in arch code.
+ */
asmlinkage void __exception_irq_entry
nvic_handle_irq(irq_hw_number_t hwirq, struct pt_regs *regs)
{
- handle_domain_irq(nvic_irq_domain, hwirq, regs);
+ struct pt_regs *old_regs;
+
+ irq_enter();
+ old_regs = set_irq_regs(regs);
+ __nvic_handle_irq(hwirq);
+ set_irq_regs(old_regs);
+ irq_exit();
}
static int nvic_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
diff --git a/drivers/irqchip/irq-omap-intc.c b/drivers/irqchip/irq-omap-intc.c
index d360a6eddd6d..dc82162ba763 100644
--- a/drivers/irqchip/irq-omap-intc.c
+++ b/drivers/irqchip/irq-omap-intc.c
@@ -357,7 +357,7 @@ omap_intc_handle_irq(struct pt_regs *regs)
}
irqnr &= ACTIVEIRQ_MASK;
- handle_domain_irq(domain, irqnr, regs);
+ generic_handle_domain_irq(domain, irqnr);
}
static int __init intc_of_init(struct device_node *node,
diff --git a/drivers/irqchip/irq-or1k-pic.c b/drivers/irqchip/irq-or1k-pic.c
index 03d2366118dd..49b47e787644 100644
--- a/drivers/irqchip/irq-or1k-pic.c
+++ b/drivers/irqchip/irq-or1k-pic.c
@@ -116,7 +116,7 @@ static void or1k_pic_handle_irq(struct pt_regs *regs)
int irq = -1;
while ((irq = pic_get_irq(irq + 1)) != NO_IRQ)
- handle_domain_irq(root_domain, irq, regs);
+ generic_handle_domain_irq(root_domain, irq);
}
static int or1k_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
diff --git a/drivers/irqchip/irq-orion.c b/drivers/irqchip/irq-orion.c
index b6868f7b805a..17c2c7a07f10 100644
--- a/drivers/irqchip/irq-orion.c
+++ b/drivers/irqchip/irq-orion.c
@@ -42,8 +42,8 @@ __exception_irq_entry orion_handle_irq(struct pt_regs *regs)
gc->mask_cache;
while (stat) {
u32 hwirq = __fls(stat);
- handle_domain_irq(orion_irq_domain,
- gc->irq_base + hwirq, regs);
+ generic_handle_domain_irq(orion_irq_domain,
+ gc->irq_base + hwirq);
stat &= ~(1 << hwirq);
}
}
diff --git a/drivers/irqchip/irq-rda-intc.c b/drivers/irqchip/irq-rda-intc.c
index 960168303b73..9f0144a73777 100644
--- a/drivers/irqchip/irq-rda-intc.c
+++ b/drivers/irqchip/irq-rda-intc.c
@@ -53,7 +53,7 @@ static void __exception_irq_entry rda_handle_irq(struct pt_regs *regs)
while (stat) {
hwirq = __fls(stat);
- handle_domain_irq(rda_irq_domain, hwirq, regs);
+ generic_handle_domain_irq(rda_irq_domain, hwirq);
stat &= ~BIT(hwirq);
}
}
diff --git a/drivers/irqchip/irq-riscv-intc.c b/drivers/irqchip/irq-riscv-intc.c
index 8017f6d32d52..b65bd8878d4f 100644
--- a/drivers/irqchip/irq-riscv-intc.c
+++ b/drivers/irqchip/irq-riscv-intc.c
@@ -37,7 +37,7 @@ static asmlinkage void riscv_intc_irq(struct pt_regs *regs)
break;
#endif
default:
- handle_domain_irq(intc_domain, cause, regs);
+ generic_handle_domain_irq(intc_domain, cause);
break;
}
}
diff --git a/drivers/irqchip/irq-sa11x0.c b/drivers/irqchip/irq-sa11x0.c
index dbccc7dafbf8..31c202a1ae62 100644
--- a/drivers/irqchip/irq-sa11x0.c
+++ b/drivers/irqchip/irq-sa11x0.c
@@ -140,8 +140,8 @@ sa1100_handle_irq(struct pt_regs *regs)
if (mask == 0)
break;
- handle_domain_irq(sa1100_normal_irqdomain,
- ffs(mask) - 1, regs);
+ generic_handle_domain_irq(sa1100_normal_irqdomain,
+ ffs(mask) - 1);
} while (1);
}
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index 33c76710f845..b7cb2da71888 100644
--- a/drivers/irqchip/irq-stm32-exti.c
+++ b/drivers/irqchip/irq-stm32-exti.c
@@ -850,7 +850,6 @@ static int stm32_exti_probe(struct platform_device *pdev)
struct irq_domain *parent_domain, *domain;
struct stm32_exti_host_data *host_data;
const struct stm32_exti_drv_data *drv_data;
- struct resource *res;
host_data = devm_kzalloc(dev, sizeof(*host_data), GFP_KERNEL);
if (!host_data)
@@ -888,8 +887,7 @@ static int stm32_exti_probe(struct platform_device *pdev)
if (!host_data->chips_data)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- host_data->base = devm_ioremap_resource(dev, res);
+ host_data->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(host_data->base))
return PTR_ERR(host_data->base);
diff --git a/drivers/irqchip/irq-sun4i.c b/drivers/irqchip/irq-sun4i.c
index 8a315d6a3399..dd506ebfdacb 100644
--- a/drivers/irqchip/irq-sun4i.c
+++ b/drivers/irqchip/irq-sun4i.c
@@ -195,7 +195,7 @@ static void __exception_irq_entry sun4i_handle_irq(struct pt_regs *regs)
return;
do {
- handle_domain_irq(irq_ic_data->irq_domain, hwirq, regs);
+ generic_handle_domain_irq(irq_ic_data->irq_domain, hwirq);
hwirq = readl(irq_ic_data->irq_base +
SUN4I_IRQ_VECTOR_REG) >> 2;
} while (hwirq != 0);
diff --git a/drivers/irqchip/irq-ti-sci-inta.c b/drivers/irqchip/irq-ti-sci-inta.c
index 97f454ec376b..8eba08db33b2 100644
--- a/drivers/irqchip/irq-ti-sci-inta.c
+++ b/drivers/irqchip/irq-ti-sci-inta.c
@@ -650,7 +650,6 @@ static int ti_sci_inta_irq_domain_probe(struct platform_device *pdev)
struct device_node *parent_node, *node;
struct ti_sci_inta_irq_domain *inta;
struct device *dev = &pdev->dev;
- struct resource *res;
int ret;
node = dev_of_node(dev);
@@ -694,8 +693,7 @@ static int ti_sci_inta_irq_domain_probe(struct platform_device *pdev)
return PTR_ERR(inta->global_event);
}
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- inta->base = devm_ioremap_resource(dev, res);
+ inta->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(inta->base))
return PTR_ERR(inta->base);
diff --git a/drivers/irqchip/irq-ts4800.c b/drivers/irqchip/irq-ts4800.c
index 34337a61b1ef..f032db23b30f 100644
--- a/drivers/irqchip/irq-ts4800.c
+++ b/drivers/irqchip/irq-ts4800.c
@@ -93,15 +93,13 @@ static int ts4800_ic_probe(struct platform_device *pdev)
struct device_node *node = pdev->dev.of_node;
struct ts4800_irq_data *data;
struct irq_chip *irq_chip;
- struct resource *res;
int parent_irq;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- data->base = devm_ioremap_resource(&pdev->dev, res);
+ data->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(data->base))
return PTR_ERR(data->base);
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index 75be350cf82f..f2757b6aecc8 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -105,7 +105,7 @@ static int handle_one_fpga(struct fpga_irq_data *f, struct pt_regs *regs)
while ((status = readl(f->base + IRQ_STATUS))) {
irq = ffs(status) - 1;
- handle_domain_irq(f->domain, irq, regs);
+ generic_handle_domain_irq(f->domain, irq);
handled = 1;
}
diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c
index 1e1f2d115257..9e3d5561e04e 100644
--- a/drivers/irqchip/irq-vic.c
+++ b/drivers/irqchip/irq-vic.c
@@ -208,7 +208,7 @@ static int handle_one_vic(struct vic_device *vic, struct pt_regs *regs)
while ((stat = readl_relaxed(vic->base + VIC_IRQ_STATUS))) {
irq = ffs(stat) - 1;
- handle_domain_irq(vic->domain, irq, regs);
+ generic_handle_domain_irq(vic->domain, irq);
handled = 1;
}
diff --git a/drivers/irqchip/irq-vt8500.c b/drivers/irqchip/irq-vt8500.c
index 5bce936af5d9..e17dd3a8c2d5 100644
--- a/drivers/irqchip/irq-vt8500.c
+++ b/drivers/irqchip/irq-vt8500.c
@@ -183,7 +183,7 @@ static void __exception_irq_entry vt8500_handle_irq(struct pt_regs *regs)
continue;
}
- handle_domain_irq(intc[i].domain, irqnr, regs);
+ generic_handle_domain_irq(intc[i].domain, irqnr);
}
}
diff --git a/drivers/irqchip/irq-wpcm450-aic.c b/drivers/irqchip/irq-wpcm450-aic.c
index f3ac392d5bc8..0dcbeb1a05a1 100644
--- a/drivers/irqchip/irq-wpcm450-aic.c
+++ b/drivers/irqchip/irq-wpcm450-aic.c
@@ -69,7 +69,7 @@ static void __exception_irq_entry wpcm450_aic_handle_irq(struct pt_regs *regs)
/* Read IPER to signal that nIRQ can be de-asserted */
hwirq = readl(aic->regs + AIC_IPER) / 4;
- handle_domain_irq(aic->domain, hwirq, regs);
+ generic_handle_domain_irq(aic->domain, hwirq);
}
static void wpcm450_aic_eoi(struct irq_data *d)
diff --git a/drivers/irqchip/irq-zevio.c b/drivers/irqchip/irq-zevio.c
index 84163f1ebfcf..7a72620fc478 100644
--- a/drivers/irqchip/irq-zevio.c
+++ b/drivers/irqchip/irq-zevio.c
@@ -50,7 +50,7 @@ static void __exception_irq_entry zevio_handle_irq(struct pt_regs *regs)
while (readl(zevio_irq_io + IO_STATUS)) {
irqnr = readl(zevio_irq_io + IO_CURRENT);
- handle_domain_irq(zevio_irq_domain, irqnr, regs);
+ generic_handle_domain_irq(zevio_irq_domain, irqnr);
}
}
diff --git a/include/linux/irq.h b/include/linux/irq.h
index c8293c817646..848e1e12c5c6 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -524,9 +524,10 @@ struct irq_chip {
void (*irq_bus_lock)(struct irq_data *data);
void (*irq_bus_sync_unlock)(struct irq_data *data);
+#ifdef CONFIG_DEPRECATED_IRQ_CPU_ONOFFLINE
void (*irq_cpu_online)(struct irq_data *data);
void (*irq_cpu_offline)(struct irq_data *data);
-
+#endif
void (*irq_suspend)(struct irq_data *data);
void (*irq_resume)(struct irq_data *data);
void (*irq_pm_shutdown)(struct irq_data *data);
@@ -606,8 +607,10 @@ struct irqaction;
extern int setup_percpu_irq(unsigned int irq, struct irqaction *new);
extern void remove_percpu_irq(unsigned int irq, struct irqaction *act);
+#ifdef CONFIG_DEPRECATED_IRQ_CPU_ONOFFLINE
extern void irq_cpu_online(void);
extern void irq_cpu_offline(void);
+#endif
extern int irq_set_affinity_locked(struct irq_data *data,
const struct cpumask *cpumask, bool force);
extern int irq_set_vcpu_affinity(unsigned int irq, void *vcpu_info);
@@ -1261,6 +1264,7 @@ int __init set_handle_irq(void (*handle_irq)(struct pt_regs *));
* top-level IRQ handler.
*/
extern void (*handle_arch_irq)(struct pt_regs *) __ro_after_init;
+asmlinkage void generic_handle_arch_irq(struct pt_regs *regs);
#else
#ifndef set_handle_irq
#define set_handle_irq(handle_irq) \
diff --git a/include/linux/irqchip.h b/include/linux/irqchip.h
index 67351aac65ef..3a091d0710ae 100644
--- a/include/linux/irqchip.h
+++ b/include/linux/irqchip.h
@@ -14,8 +14,15 @@
#include <linux/acpi.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/of_irq.h>
#include <linux/platform_device.h>
+/* Undefined on purpose */
+extern of_irq_init_cb_t typecheck_irq_init_cb;
+
+#define typecheck_irq_init_cb(fn) \
+ (__typecheck(typecheck_irq_init_cb, &fn) ? fn : fn)
+
/*
* This macro must be used by the different irqchip drivers to declare
* the association between their DT compatible string and their
@@ -23,24 +30,27 @@
*
* @name: name that must be unique across all IRQCHIP_DECLARE of the
* same file.
- * @compstr: compatible string of the irqchip driver
+ * @compat: compatible string of the irqchip driver
* @fn: initialization function
*/
-#define IRQCHIP_DECLARE(name, compat, fn) OF_DECLARE_2(irqchip, name, compat, fn)
+#define IRQCHIP_DECLARE(name, compat, fn) \
+ OF_DECLARE_2(irqchip, name, compat, typecheck_irq_init_cb(fn))
extern int platform_irqchip_probe(struct platform_device *pdev);
#define IRQCHIP_PLATFORM_DRIVER_BEGIN(drv_name) \
static const struct of_device_id drv_name##_irqchip_match_table[] = {
-#define IRQCHIP_MATCH(compat, fn) { .compatible = compat, .data = fn },
+#define IRQCHIP_MATCH(compat, fn) { .compatible = compat, \
+ .data = typecheck_irq_init_cb(fn), },
#define IRQCHIP_PLATFORM_DRIVER_END(drv_name) \
{}, \
}; \
MODULE_DEVICE_TABLE(of, drv_name##_irqchip_match_table); \
-static struct platform_driver drv_name##_driver = { \
- .probe = platform_irqchip_probe, \
+static struct platform_driver drv_name##_driver = { \
+ .probe = IS_ENABLED(CONFIG_IRQCHIP) ? \
+ platform_irqchip_probe : NULL, \
.driver = { \
.name = #drv_name, \
.owner = THIS_MODULE, \
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 59aea39785bf..93d270ca0c56 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -168,14 +168,7 @@ int generic_handle_irq(unsigned int irq);
* conversion failed.
*/
int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwirq);
-
-#ifdef CONFIG_HANDLE_DOMAIN_IRQ
-int handle_domain_irq(struct irq_domain *domain,
- unsigned int hwirq, struct pt_regs *regs);
-
-int handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq,
- struct pt_regs *regs);
-#endif
+int generic_handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq);
#endif
/* Test to see if a driver has successfully requested an irq */
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index fbc54c2a7f23..10929eda9825 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -97,9 +97,6 @@ config GENERIC_MSI_IRQ_DOMAIN
config IRQ_MSI_IOMMU
bool
-config HANDLE_DOMAIN_IRQ
- bool
-
config IRQ_TIMINGS
bool
@@ -144,3 +141,10 @@ config GENERIC_IRQ_MULTI_HANDLER
bool
help
Allow to specify the low level IRQ handler at run time.
+
+# Cavium Octeon is the last system to use this deprecated option
+# Do not even think of enabling this on any new platform
+config DEPRECATED_IRQ_CPU_ONOFFLINE
+ bool
+ depends on CAVIUM_OCTEON_SOC
+ default CAVIUM_OCTEON_SOC
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index a98bcfc4be7b..f895265d7548 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -1122,6 +1122,7 @@ void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set)
}
EXPORT_SYMBOL_GPL(irq_modify_status);
+#ifdef CONFIG_DEPRECATED_IRQ_CPU_ONOFFLINE
/**
* irq_cpu_online - Invoke all irq_cpu_online functions.
*
@@ -1181,6 +1182,7 @@ void irq_cpu_offline(void)
raw_spin_unlock_irqrestore(&desc->lock, flags);
}
}
+#endif
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c
index cc7cdd26e23e..6f29bf4c8515 100644
--- a/kernel/irq/generic-chip.c
+++ b/kernel/irq/generic-chip.c
@@ -25,6 +25,7 @@ static DEFINE_RAW_SPINLOCK(gc_lock);
void irq_gc_noop(struct irq_data *d)
{
}
+EXPORT_SYMBOL_GPL(irq_gc_noop);
/**
* irq_gc_mask_disable_reg - Mask chip via disable register
@@ -44,6 +45,7 @@ void irq_gc_mask_disable_reg(struct irq_data *d)
*ct->mask_cache &= ~mask;
irq_gc_unlock(gc);
}
+EXPORT_SYMBOL_GPL(irq_gc_mask_disable_reg);
/**
* irq_gc_mask_set_bit - Mask chip via setting bit in mask register
@@ -103,6 +105,7 @@ void irq_gc_unmask_enable_reg(struct irq_data *d)
*ct->mask_cache |= mask;
irq_gc_unlock(gc);
}
+EXPORT_SYMBOL_GPL(irq_gc_unmask_enable_reg);
/**
* irq_gc_ack_set_bit - Ack pending interrupt via setting bit
diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c
index 221d80c31e94..27182003b879 100644
--- a/kernel/irq/handle.c
+++ b/kernel/irq/handle.c
@@ -14,6 +14,8 @@
#include <linux/interrupt.h>
#include <linux/kernel_stat.h>
+#include <asm/irq_regs.h>
+
#include <trace/events/irq.h>
#include "internals.h"
@@ -226,4 +228,20 @@ int __init set_handle_irq(void (*handle_irq)(struct pt_regs *))
handle_arch_irq = handle_irq;
return 0;
}
+
+/**
+ * generic_handle_arch_irq - root irq handler for architectures which do no
+ * entry accounting themselves
+ * @regs: Register file coming from the low-level handling code
+ */
+asmlinkage void noinstr generic_handle_arch_irq(struct pt_regs *regs)
+{
+ struct pt_regs *old_regs;
+
+ irq_enter();
+ old_regs = set_irq_regs(regs);
+ handle_arch_irq(regs);
+ set_irq_regs(old_regs);
+ irq_exit();
+}
#endif
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 4e3c29bb603c..2267e6527db3 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -646,13 +646,16 @@ int handle_irq_desc(struct irq_desc *desc)
generic_handle_irq_desc(desc);
return 0;
}
-EXPORT_SYMBOL_GPL(handle_irq_desc);
/**
* generic_handle_irq - Invoke the handler for a particular irq
* @irq: The irq number to handle
*
- */
+ * Returns: 0 on success, or -EINVAL if conversion has failed
+ *
+ * This function must be called from an IRQ context with irq regs
+ * initialized.
+ */
int generic_handle_irq(unsigned int irq)
{
return handle_irq_desc(irq_to_desc(irq));
@@ -662,89 +665,39 @@ EXPORT_SYMBOL_GPL(generic_handle_irq);
#ifdef CONFIG_IRQ_DOMAIN
/**
* generic_handle_domain_irq - Invoke the handler for a HW irq belonging
- * to a domain, usually for a non-root interrupt
- * controller
+ * to a domain.
* @domain: The domain where to perform the lookup
* @hwirq: The HW irq number to convert to a logical one
*
* Returns: 0 on success, or -EINVAL if conversion has failed
*
+ * This function must be called from an IRQ context with irq regs
+ * initialized.
*/
int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwirq)
{
+ WARN_ON_ONCE(!in_irq());
return handle_irq_desc(irq_resolve_mapping(domain, hwirq));
}
EXPORT_SYMBOL_GPL(generic_handle_domain_irq);
-#ifdef CONFIG_HANDLE_DOMAIN_IRQ
/**
- * handle_domain_irq - Invoke the handler for a HW irq belonging to a domain,
- * usually for a root interrupt controller
+ * generic_handle_domain_nmi - Invoke the handler for a HW nmi belonging
+ * to a domain.
* @domain: The domain where to perform the lookup
* @hwirq: The HW irq number to convert to a logical one
- * @regs: Register file coming from the low-level handling code
*
* Returns: 0 on success, or -EINVAL if conversion has failed
- */
-int handle_domain_irq(struct irq_domain *domain,
- unsigned int hwirq, struct pt_regs *regs)
-{
- struct pt_regs *old_regs = set_irq_regs(regs);
- struct irq_desc *desc;
- int ret = 0;
-
- irq_enter();
-
- /* The irqdomain code provides boundary checks */
- desc = irq_resolve_mapping(domain, hwirq);
- if (likely(desc))
- handle_irq_desc(desc);
- else
- ret = -EINVAL;
-
- irq_exit();
- set_irq_regs(old_regs);
- return ret;
-}
-
-/**
- * handle_domain_nmi - Invoke the handler for a HW irq belonging to a domain
- * @domain: The domain where to perform the lookup
- * @hwirq: The HW irq number to convert to a logical one
- * @regs: Register file coming from the low-level handling code
*
- * This function must be called from an NMI context.
- *
- * Returns: 0 on success, or -EINVAL if conversion has failed
- */
-int handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq,
- struct pt_regs *regs)
+ * This function must be called from an NMI context with irq regs
+ * initialized.
+ **/
+int generic_handle_domain_nmi(struct irq_domain *domain, unsigned int hwirq)
{
- struct pt_regs *old_regs = set_irq_regs(regs);
- struct irq_desc *desc;
- int ret = 0;
-
- /*
- * NMI context needs to be setup earlier in order to deal with tracing.
- */
- WARN_ON(!in_nmi());
-
- desc = irq_resolve_mapping(domain, hwirq);
-
- /*
- * ack_bad_irq is not NMI-safe, just report
- * an invalid interrupt.
- */
- if (likely(desc))
- handle_irq_desc(desc);
- else
- ret = -EINVAL;
-
- set_irq_regs(old_regs);
- return ret;
+ WARN_ON_ONCE(!in_nmi());
+ return handle_irq_desc(irq_resolve_mapping(domain, hwirq));
}
#endif
-#endif
/* Dynamic interrupt handling */
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 27667e82ecc9..7405e384e5ed 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1259,6 +1259,8 @@ static int irq_thread(void *data)
irqreturn_t (*handler_fn)(struct irq_desc *desc,
struct irqaction *action);
+ sched_set_fifo(current);
+
if (force_irqthreads() && test_bit(IRQTF_FORCED_THREAD,
&action->thread_flags))
handler_fn = irq_forced_thread_fn;
@@ -1424,8 +1426,6 @@ setup_irq_thread(struct irqaction *new, unsigned int irq, bool secondary)
if (IS_ERR(t))
return PTR_ERR(t);
- sched_set_fifo(t);
-
/*
* We keep the reference to the task struct even if
* the thread dies to avoid that the interrupt code
@@ -2827,7 +2827,7 @@ EXPORT_SYMBOL_GPL(irq_get_irqchip_state);
* This call sets the internal irqchip state of an interrupt,
* depending on the value of @which.
*
- * This function should be called with preemption disabled if the
+ * This function should be called with migration disabled if the
* interrupt controller has per-cpu registers.
*/
int irq_set_irqchip_state(unsigned int irq, enum irqchip_irq_state which,
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index c481d8458325..02b2daf07441 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -447,6 +447,10 @@ MODULE_PARM_DESC(noirqdebug, "Disable irq lockup detection when true");
static int __init irqfixup_setup(char *str)
{
+ if (IS_ENABLED(CONFIG_PREEMPT_RT)) {
+ pr_warn("irqfixup boot option not supported with PREEMPT_RT\n");
+ return 1;
+ }
irqfixup = 1;
printk(KERN_WARNING "Misrouted IRQ fixup support enabled.\n");
printk(KERN_WARNING "This may impact system performance.\n");
@@ -459,6 +463,10 @@ module_param(irqfixup, int, 0644);
static int __init irqpoll_setup(char *str)
{
+ if (IS_ENABLED(CONFIG_PREEMPT_RT)) {
+ pr_warn("irqpoll boot option not supported with PREEMPT_RT\n");
+ return 1;
+ }
irqfixup = 2;
printk(KERN_WARNING "Misrouted IRQ fixup and polling support "
"enabled\n");