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Date: Mon, 21 Mar 2022 12:02:24 +0100 (CET)
From: Thomas Gleixner <tglx@...utronix.de>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, x86@...nel.org
Subject: [GIT pull] irq/core for v5.18-rc1
Linus,
please pull the latest irq/core branch from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq-core-2022-03-21
up to: 411472ae5bb4: Merge tag 'v5.17-rc8' into irq/core, to fix conflicts
Updates for the interrupt subsystem:
Core code:
- Provide generic_handle_irq_safe() which can be invoked from any
context (hard interrupt or threaded). This allows to remove ugly
workarounds in drivers all over the place.
- Use generic_handle_irq_safe() in the affected drivers.
- The usual cleanups and improvements.
Interrupt chip drivers:
- Support for new interrupt chips or not yet supported variants:
STM32MP14, Meson GPIO, Apple M1 PMU, Apple M1 AICv2, Qualcomm MPM
- Convert the Xilinx driver to generic interrupt domains
- Cleanup the irq_chip::name handling
- The usual cleanups and improvements all over the place
Thanks,
tglx
------------------>
Alexandre Torgue (2):
dt-bindings: interrupt-controller: stm32-exti: document st,stm32mp13-exti
irqchip/stm32-exti: Add STM32MP13 support
Barry Song (1):
irqchip/gic-v3: Use dsb(ishst) to order writes with ICC_SGI1R_EL1 accesses
Changbin Du (1):
genirq, softirq: Use in_hardirq() instead of in_irq()
Hector Martin (7):
PCI: apple: Change MSI handling to handle 4-cell AIC fwspec form
dt-bindings: interrupt-controller: apple,aic2: New binding for AICv2
irqchip/apple-aic: Add Fast IPI support
irqchip/apple-aic: Switch to irq_domain_create_tree and sparse hwirqs
irqchip/apple-aic: Dynamically compute register offsets
irqchip/apple-aic: Support multiple dies
irqchip/apple-aic: Add support for AICv2
Marc Zyngier (34):
dt-bindings: arm-pmu: Document Apple PMU compatible strings
dt-bindings: apple,aic: Add CPU PMU per-cpu pseudo-interrupts
dt-bindings: apple,aic: Add affinity description for per-cpu pseudo-interrupts
irqchip/apple-aic: Parse FIQ affinities from device-tree
irqchip/apple-aic: Wire PMU interrupts
arm64: dts: apple: Add t8103 PMU interrupt affinities
arm64: dts: apple: Add t8303 PMU nodes
irqchip/apple-aic: Move PMU-specific registers to their own include file
genirq: Allow the PM device to originate from irq domain
irqchip/gic: Move PM device over to irq domain
irqchip/renesas-intc-irqpin: Move PM device over to irq domain
irqchip/renesas-irqc: Move PM device over to irq domain
irqchip/imx-intmux: Move PM device over to irq domain
gpio: mt7621: Kill parent_device usage
gpio: omap: Move PM device over to irq domain
gpio: rcar: Move PM device over to irq domain
gpio: tpmx86: Move PM device over to irq domain
pinctrl: npcm: Fix broken references to chip->parent_device
pinctrl: starfive: Move PM device over to irq domain
genirq: Kill irq_chip::parent_device
irqdomain: Let irq_domain_set_{info,hwirq_and_chip} take a const irq_chip
genirq: Allow irq_chip registration functions to take a const irq_chip
genirq/debugfs: Use irq_print_chip() when provided by irqchip
irqchip/gic: Switch to dynamic chip name output
irqchip/lpc32xx: Switch to dynamic chip name output
irqchip/mvebu-pic: Switch to dynamic chip name output
irqchip/ts4800: Switch to dynamic chip name output
irqchip/versatile-fpga: Switch to dynamic chip name output
irqchip/qcom-pdc: Kill PDC_NO_PARENT_IRQ
irqchip/qcom-pdc: Kill non-wakeup irqdomain
irqchip/qcom-pdc: Kill qcom_pdc_translate helper
irqchip/qcom-pdc: Fix broken locking
irqchip/qcom-pdc: Drop open coded version of __assign_bit()
irqchip/apple-aic: Fix cpumask allocation for FIQs
Michal Simek (1):
irqchip/xilinx: Switch to GENERIC_IRQ_MULTI_HANDLER
Niklas Cassel (2):
irqchip/sifive-plic: Improve naming scheme for per context offsets
irqchip/sifive-plic: Disable S-mode IRQs if running in M-mode
Qianggui Song (4):
dt-bindings: interrupt-controller: New binding for Meson-S4 SoCs
irqchip/meson-gpio: support more than 8 channels gpio irq
irqchip/meson-gpio: add select trigger type callback
irqchip/meson-gpio: Add support for meson s4 SoCs
Sebastian Andrzej Siewior (5):
genirq: Provide generic_handle_irq_safe()
misc: hi6421-spmi-pmic: Use generic_handle_irq_safe().
mfd: ezx-pcap: Use generic_handle_irq_safe().
net: usb: lan78xx: Use generic_handle_irq_safe().
staging: greybus: gpio: Use generic_handle_irq_safe().
Shawn Guo (2):
dt-bindings: interrupt-controller: Add Qualcomm MPM support
irqchip: Add Qualcomm MPM controller driver
Souptick Joarder (HPE) (1):
irqchip/nvic: Release nvic_base upon failure
Documentation/devicetree/bindings/arm/pmu.yaml | 2 +
.../amlogic,meson-gpio-intc.txt | 1 +
.../bindings/interrupt-controller/apple,aic.yaml | 31 ++
.../bindings/interrupt-controller/apple,aic2.yaml | 98 ++++
.../bindings/interrupt-controller/qcom,mpm.yaml | 96 ++++
.../interrupt-controller/st,stm32-exti.yaml | 1 +
MAINTAINERS | 2 +-
arch/arm64/boot/dts/apple/t8103.dtsi | 24 +
arch/arm64/include/asm/apple_m1_pmu.h | 19 +
arch/microblaze/Kconfig | 2 +
arch/microblaze/include/asm/irq.h | 3 -
arch/microblaze/kernel/irq.c | 16 +-
drivers/gpio/gpio-mt7621.c | 1 -
drivers/gpio/gpio-omap.c | 7 +-
drivers/gpio/gpio-rcar.c | 2 +-
drivers/gpio/gpio-tqmx86.c | 3 +-
drivers/irqchip/Kconfig | 8 +
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-apple-aic.c | 551 +++++++++++++++++----
drivers/irqchip/irq-ftintc010.c | 1 -
drivers/irqchip/irq-gic-v3.c | 2 +-
drivers/irqchip/irq-gic.c | 104 ++--
drivers/irqchip/irq-imx-intmux.c | 8 +-
drivers/irqchip/irq-lpc32xx.c | 34 +-
drivers/irqchip/irq-meson-gpio.c | 106 +++-
drivers/irqchip/irq-mvebu-pic.c | 28 +-
drivers/irqchip/irq-nvic.c | 2 +
drivers/irqchip/irq-qcom-mpm.c | 461 +++++++++++++++++
drivers/irqchip/irq-renesas-intc-irqpin.c | 3 +-
drivers/irqchip/irq-renesas-irqc.c | 3 +-
drivers/irqchip/irq-sifive-plic.c | 38 +-
drivers/irqchip/irq-stm32-exti.c | 50 ++
drivers/irqchip/irq-ts4800.c | 25 +-
drivers/irqchip/irq-versatile-fpga.c | 46 +-
drivers/irqchip/irq-xilinx-intc.c | 30 +-
drivers/irqchip/qcom-pdc.c | 137 ++---
drivers/mfd/ezx-pcap.c | 4 +-
drivers/misc/hi6421v600-irq.c | 6 +-
drivers/net/usb/lan78xx.c | 7 +-
drivers/pci/controller/pcie-apple.c | 2 +-
drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c | 25 +-
drivers/pinctrl/pinctrl-starfive.c | 4 +-
drivers/staging/greybus/gpio.c | 5 +-
.../dt-bindings/interrupt-controller/apple-aic.h | 2 +
include/linux/irq.h | 9 +-
include/linux/irqchip/versatile-fpga.h | 14 -
include/linux/irqdesc.h | 1 +
include/linux/irqdomain.h | 15 +-
kernel/irq/chip.c | 29 +-
kernel/irq/debugfs.c | 8 +-
kernel/irq/irqdesc.c | 27 +-
kernel/irq/irqdomain.c | 9 +-
kernel/softirq.c | 10 +-
53 files changed, 1656 insertions(+), 467 deletions(-)
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
create mode 100644 Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml
create mode 100644 arch/arm64/include/asm/apple_m1_pmu.h
create mode 100644 drivers/irqchip/irq-qcom-mpm.c
delete mode 100644 include/linux/irqchip/versatile-fpga.h
diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml
index 981bac451698..7a04b8aaaec3 100644
--- a/Documentation/devicetree/bindings/arm/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/pmu.yaml
@@ -20,6 +20,8 @@ properties:
items:
- enum:
- apm,potenza-pmu
+ - apple,firestorm-pmu
+ - apple,icestorm-pmu
- arm,armv8-pmuv3 # Only for s/w models
- arm,arm1136-pmu
- arm,arm1176-pmu
diff --git a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
index 23b18b92c558..bde63f8f090e 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
@@ -18,6 +18,7 @@ Required properties:
"amlogic,meson-g12a-gpio-intc" for G12A SoCs (S905D2, S905X2, S905Y2)
"amlogic,meson-sm1-gpio-intc" for SM1 SoCs (S905D3, S905X3, S905Y3)
"amlogic,meson-a1-gpio-intc" for A1 SoCs (A113L)
+ "amlogic,meson-s4-gpio-intc" for S4 SoCs (S802X2, S905Y4, S805X2G, S905W2)
- reg : Specifies base physical address and size of the registers.
- interrupt-controller : Identifies the node as an interrupt controller.
- #interrupt-cells : Specifies the number of cells needed to encode an
diff --git a/Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml b/Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
index 97359024709a..85c85b694217 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
@@ -56,6 +56,8 @@ properties:
- 1: virtual HV timer
- 2: physical guest timer
- 3: virtual guest timer
+ - 4: 'efficient' CPU PMU
+ - 5: 'performance' CPU PMU
The 3rd cell contains the interrupt flags. This is normally
IRQ_TYPE_LEVEL_HIGH (4).
@@ -68,6 +70,35 @@ properties:
power-domains:
maxItems: 1
+ affinities:
+ type: object
+ additionalProperties: false
+ description:
+ FIQ affinity can be expressed as a single "affinities" node,
+ containing a set of sub-nodes, one per FIQ with a non-default
+ affinity.
+ patternProperties:
+ "^.+-affinity$":
+ type: object
+ additionalProperties: false
+ properties:
+ apple,fiq-index:
+ description:
+ The interrupt number specified as a FIQ, and for which
+ the affinity is not the default.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 5
+
+ cpus:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ description:
+ Should be a list of phandles to CPU nodes (as described in
+ Documentation/devicetree/bindings/arm/cpus.yaml).
+
+ required:
+ - fiq-index
+ - cpus
+
required:
- compatible
- '#interrupt-cells'
diff --git a/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml b/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
new file mode 100644
index 000000000000..47a78a167aba
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/apple,aic2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple Interrupt Controller 2
+
+maintainers:
+ - Hector Martin <marcan@...can.st>
+
+description: |
+ The Apple Interrupt Controller 2 is a simple interrupt controller present on
+ Apple ARM SoC platforms starting with t600x (M1 Pro and Max).
+
+ It provides the following features:
+
+ - Level-triggered hardware IRQs wired to SoC blocks
+ - Single mask bit per IRQ
+ - Automatic masking on event delivery (auto-ack)
+ - Software triggering (ORed with hw line)
+ - Automatic prioritization (single event/ack register per CPU, lower IRQs =
+ higher priority)
+ - Automatic masking on ack
+ - Support for multiple dies
+
+ This device also represents the FIQ interrupt sources on platforms using AIC,
+ which do not go through a discrete interrupt controller. It also handles
+ FIQ-based Fast IPIs.
+
+properties:
+ compatible:
+ items:
+ - const: apple,t6000-aic
+ - const: apple,aic2
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 4
+ description: |
+ The 1st cell contains the interrupt type:
+ - 0: Hardware IRQ
+ - 1: FIQ
+
+ The 2nd cell contains the die ID.
+
+ The next cell contains the interrupt number.
+ - HW IRQs: interrupt number
+ - FIQs:
+ - 0: physical HV timer
+ - 1: virtual HV timer
+ - 2: physical guest timer
+ - 3: virtual guest timer
+
+ The last cell contains the interrupt flags. This is normally
+ IRQ_TYPE_LEVEL_HIGH (4).
+
+ reg:
+ items:
+ - description: Address and size of the main AIC2 registers.
+ - description: Address and size of the AIC2 Event register.
+
+ reg-names:
+ items:
+ - const: core
+ - const: event
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - '#interrupt-cells'
+ - interrupt-controller
+ - reg
+ - reg-names
+
+additionalProperties: false
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+examples:
+ - |
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ aic: interrupt-controller@...100000 {
+ compatible = "apple,t6000-aic", "apple,aic2";
+ #interrupt-cells = <4>;
+ interrupt-controller;
+ reg = <0x2 0x8e100000 0x0 0xc000>,
+ <0x2 0x8e10c000 0x0 0x4>;
+ reg-names = "core", "event";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml b/Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml
new file mode 100644
index 000000000000..509d20c091af
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/qcom,mpm.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interrupt-controller/qcom,mpm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcom MPM Interrupt Controller
+
+maintainers:
+ - Shawn Guo <shawn.guo@...aro.org>
+
+description:
+ Qualcomm Technologies Inc. SoCs based on the RPM architecture have a
+ MSM Power Manager (MPM) that is in always-on domain. In addition to managing
+ resources during sleep, the hardware also has an interrupt controller that
+ monitors the interrupts when the system is asleep, wakes up the APSS when
+ one of these interrupts occur and replays it to GIC interrupt controller
+ after GIC becomes operational.
+
+allOf:
+ - $ref: /schemas/interrupt-controller.yaml#
+
+properties:
+ compatible:
+ items:
+ - const: qcom,mpm
+
+ reg:
+ maxItems: 1
+ description:
+ Specifies the base address and size of vMPM registers in RPM MSG RAM.
+
+ interrupts:
+ maxItems: 1
+ description:
+ Specify the IRQ used by RPM to wakeup APSS.
+
+ mboxes:
+ maxItems: 1
+ description:
+ Specify the mailbox used to notify RPM for writing vMPM registers.
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+ description:
+ The first cell is the MPM pin number for the interrupt, and the second
+ is the trigger type.
+
+ qcom,mpm-pin-count:
+ description:
+ Specify the total MPM pin count that a SoC supports.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ qcom,mpm-pin-map:
+ description:
+ A set of MPM pin numbers and the corresponding GIC SPIs.
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ items:
+ - description: MPM pin number
+ - description: GIC SPI number for the MPM pin
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - mboxes
+ - interrupt-controller
+ - '#interrupt-cells'
+ - qcom,mpm-pin-count
+ - qcom,mpm-pin-map
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ mpm: interrupt-controller@...01b8 {
+ compatible = "qcom,mpm";
+ interrupts = <GIC_SPI 197 IRQ_TYPE_EDGE_RISING>;
+ reg = <0x45f01b8 0x1000>;
+ mboxes = <&apcs_glb 1>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&intc>;
+ qcom,mpm-pin-count = <96>;
+ qcom,mpm-pin-map = <2 275>,
+ <5 296>,
+ <12 422>,
+ <24 79>,
+ <86 183>,
+ <90 260>,
+ <91 260>;
+ };
diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
index d19c881b4abc..e44daa09b137 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.yaml
@@ -20,6 +20,7 @@ properties:
- items:
- enum:
- st,stm32mp1-exti
+ - st,stm32mp13-exti
- const: syscon
"#interrupt-cells":
diff --git a/MAINTAINERS b/MAINTAINERS
index e127c2fb08a7..ad752aa077e8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1769,7 +1769,7 @@ T: git https://github.com/AsahiLinux/linux.git
F: Documentation/devicetree/bindings/arm/apple.yaml
F: Documentation/devicetree/bindings/arm/apple/*
F: Documentation/devicetree/bindings/i2c/apple,i2c.yaml
-F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
+F: Documentation/devicetree/bindings/interrupt-controller/apple,*
F: Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
F: Documentation/devicetree/bindings/pci/apple,pcie.yaml
F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
diff --git a/arch/arm64/boot/dts/apple/t8103.dtsi b/arch/arm64/boot/dts/apple/t8103.dtsi
index 19afbc91020a..9f8f4145db88 100644
--- a/arch/arm64/boot/dts/apple/t8103.dtsi
+++ b/arch/arm64/boot/dts/apple/t8103.dtsi
@@ -97,6 +97,18 @@ timer {
<AIC_FIQ AIC_TMR_HV_VIRT IRQ_TYPE_LEVEL_HIGH>;
};
+ pmu-e {
+ compatible = "apple,icestorm-pmu";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_FIQ AIC_CPU_PMU_E IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ pmu-p {
+ compatible = "apple,firestorm-pmu";
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_FIQ AIC_CPU_PMU_P IRQ_TYPE_LEVEL_HIGH>;
+ };
+
clkref: clock-ref {
compatible = "fixed-clock";
#clock-cells = <0>;
@@ -213,6 +225,18 @@ aic: interrupt-controller@...100000 {
interrupt-controller;
reg = <0x2 0x3b100000 0x0 0x8000>;
power-domains = <&ps_aic>;
+
+ affinities {
+ e-core-pmu-affinity {
+ apple,fiq-index = <AIC_CPU_PMU_E>;
+ cpus = <&cpu0 &cpu1 &cpu2 &cpu3>;
+ };
+
+ p-core-pmu-affinity {
+ apple,fiq-index = <AIC_CPU_PMU_P>;
+ cpus = <&cpu4 &cpu5 &cpu6 &cpu7>;
+ };
+ };
};
pmgr: power-management@...700000 {
diff --git a/arch/arm64/include/asm/apple_m1_pmu.h b/arch/arm64/include/asm/apple_m1_pmu.h
new file mode 100644
index 000000000000..b848af7faadc
--- /dev/null
+++ b/arch/arm64/include/asm/apple_m1_pmu.h
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#ifndef __ASM_APPLE_M1_PMU_h
+#define __ASM_APPLE_M1_PMU_h
+
+#include <linux/bits.h>
+#include <asm/sysreg.h>
+
+/* Core PMC control register */
+#define SYS_IMP_APL_PMCR0_EL1 sys_reg(3, 1, 15, 0, 0)
+#define PMCR0_IMODE GENMASK(10, 8)
+#define PMCR0_IMODE_OFF 0
+#define PMCR0_IMODE_PMI 1
+#define PMCR0_IMODE_AIC 2
+#define PMCR0_IMODE_HALT 3
+#define PMCR0_IMODE_FIQ 4
+#define PMCR0_IACT BIT(11)
+
+#endif /* __ASM_APPLE_M1_PMU_h */
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 59798e43cdb0..da568e981604 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -45,6 +45,8 @@ config MICROBLAZE
select SET_FS
select ZONE_DMA
select TRACE_IRQFLAGS_SUPPORT
+ select GENERIC_IRQ_MULTI_HANDLER
+ select HANDLE_DOMAIN_IRQ
# Endianness selection
choice
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
index 0a28e80bbab0..cb6ab55d1d01 100644
--- a/arch/microblaze/include/asm/irq.h
+++ b/arch/microblaze/include/asm/irq.h
@@ -11,7 +11,4 @@
struct pt_regs;
extern void do_IRQ(struct pt_regs *regs);
-/* should be defined in each interrupt controller driver */
-extern unsigned int xintc_get_irq(void);
-
#endif /* _ASM_MICROBLAZE_IRQ_H */
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
index 903dad822fad..1f8cb4c4f74f 100644
--- a/arch/microblaze/kernel/irq.c
+++ b/arch/microblaze/kernel/irq.c
@@ -20,27 +20,13 @@
#include <linux/irqchip.h>
#include <linux/of_irq.h>
-static u32 concurrent_irq;
-
void __irq_entry do_IRQ(struct pt_regs *regs)
{
- unsigned int irq;
struct pt_regs *old_regs = set_irq_regs(regs);
trace_hardirqs_off();
irq_enter();
- irq = xintc_get_irq();
-next_irq:
- BUG_ON(!irq);
- generic_handle_irq(irq);
-
- irq = xintc_get_irq();
- if (irq != -1U) {
- pr_debug("next irq: %d\n", irq);
- ++concurrent_irq;
- goto next_irq;
- }
-
+ handle_arch_irq(regs);
irq_exit();
set_irq_regs(old_regs);
trace_hardirqs_on();
diff --git a/drivers/gpio/gpio-mt7621.c b/drivers/gpio/gpio-mt7621.c
index ccaad1cb3c2e..d8a26e503ca5 100644
--- a/drivers/gpio/gpio-mt7621.c
+++ b/drivers/gpio/gpio-mt7621.c
@@ -239,7 +239,6 @@ mediatek_gpio_bank_probe(struct device *dev, int bank)
rg->chip.offset = bank * MTK_BANK_WIDTH;
rg->irq_chip.name = dev_name(dev);
- rg->irq_chip.parent_device = dev;
rg->irq_chip.irq_unmask = mediatek_gpio_irq_unmask;
rg->irq_chip.irq_mask = mediatek_gpio_irq_mask;
rg->irq_chip.irq_mask_ack = mediatek_gpio_irq_mask;
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index e099c39e0355..80ddc43fd875 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -986,7 +986,8 @@ static void omap_gpio_mod_init(struct gpio_bank *bank)
writel_relaxed(0, base + bank->regs->ctrl);
}
-static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
+static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc,
+ struct device *pm_dev)
{
struct gpio_irq_chip *irq;
static int gpio;
@@ -1052,6 +1053,7 @@ static int omap_gpio_chip_init(struct gpio_bank *bank, struct irq_chip *irqc)
if (ret)
return dev_err_probe(bank->chip.parent, ret, "Could not register gpio chip\n");
+ irq_domain_set_pm_device(bank->chip.irq.domain, pm_dev);
ret = devm_request_irq(bank->chip.parent, bank->irq,
omap_gpio_irq_handler,
0, dev_name(bank->chip.parent), bank);
@@ -1402,7 +1404,6 @@ static int omap_gpio_probe(struct platform_device *pdev)
irqc->irq_bus_sync_unlock = gpio_irq_bus_sync_unlock,
irqc->name = dev_name(&pdev->dev);
irqc->flags = IRQCHIP_MASK_ON_SUSPEND;
- irqc->parent_device = dev;
bank->irq = platform_get_irq(pdev, 0);
if (bank->irq <= 0) {
@@ -1466,7 +1467,7 @@ static int omap_gpio_probe(struct platform_device *pdev)
omap_gpio_mod_init(bank);
- ret = omap_gpio_chip_init(bank, irqc);
+ ret = omap_gpio_chip_init(bank, irqc, dev);
if (ret) {
pm_runtime_put_sync(dev);
pm_runtime_disable(dev);
diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index bd2e16d6e21c..3a76538f27fa 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -530,7 +530,6 @@ static int gpio_rcar_probe(struct platform_device *pdev)
irq_chip = &p->irq_chip;
irq_chip->name = "gpio-rcar";
- irq_chip->parent_device = dev;
irq_chip->irq_mask = gpio_rcar_irq_disable;
irq_chip->irq_unmask = gpio_rcar_irq_enable;
irq_chip->irq_set_type = gpio_rcar_irq_set_type;
@@ -552,6 +551,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
goto err0;
}
+ irq_domain_set_pm_device(gpio_chip->irq.domain, dev);
ret = devm_request_irq(dev, p->irq_parent, gpio_rcar_irq_handler,
IRQF_SHARED, name, p);
if (ret) {
diff --git a/drivers/gpio/gpio-tqmx86.c b/drivers/gpio/gpio-tqmx86.c
index 5b103221b58d..fa4bc7481f9a 100644
--- a/drivers/gpio/gpio-tqmx86.c
+++ b/drivers/gpio/gpio-tqmx86.c
@@ -281,7 +281,6 @@ static int tqmx86_gpio_probe(struct platform_device *pdev)
u8 irq_status;
irq_chip->name = chip->label;
- irq_chip->parent_device = &pdev->dev;
irq_chip->irq_mask = tqmx86_gpio_irq_mask;
irq_chip->irq_unmask = tqmx86_gpio_irq_unmask;
irq_chip->irq_set_type = tqmx86_gpio_irq_set_type;
@@ -316,6 +315,8 @@ static int tqmx86_gpio_probe(struct platform_device *pdev)
goto out_pm_dis;
}
+ irq_domain_set_pm_device(girq->domain, dev);
+
dev_info(dev, "GPIO functionality initialized with %d pins\n",
chip->ngpio);
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 7038957f4a77..680d2fcf2686 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -430,6 +430,14 @@ config QCOM_PDC
Power Domain Controller driver to manage and configure wakeup
IRQs for Qualcomm Technologies Inc (QTI) mobile chips.
+config QCOM_MPM
+ tristate "QCOM MPM"
+ depends on ARCH_QCOM
+ select IRQ_DOMAIN_HIERARCHY
+ help
+ MSM Power Manager driver to manage and configure wakeup
+ IRQs for Qualcomm Technologies Inc (QTI) mobile chips.
+
config CSKY_MPINTC
bool
depends on CSKY
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index c1f611cbfbf8..1f8990f812f1 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -94,6 +94,7 @@ obj-$(CONFIG_MESON_IRQ_GPIO) += irq-meson-gpio.o
obj-$(CONFIG_GOLDFISH_PIC) += irq-goldfish-pic.o
obj-$(CONFIG_NDS32) += irq-ativic32.o
obj-$(CONFIG_QCOM_PDC) += qcom-pdc.o
+obj-$(CONFIG_QCOM_MPM) += irq-qcom-mpm.o
obj-$(CONFIG_CSKY_MPINTC) += irq-csky-mpintc.o
obj-$(CONFIG_CSKY_APB_INTC) += irq-csky-apb-intc.o
obj-$(CONFIG_RISCV_INTC) += irq-riscv-intc.o
diff --git a/drivers/irqchip/irq-apple-aic.c b/drivers/irqchip/irq-apple-aic.c
index 38091ebb9403..12dd48727a15 100644
--- a/drivers/irqchip/irq-apple-aic.c
+++ b/drivers/irqchip/irq-apple-aic.c
@@ -24,7 +24,7 @@
* - Default "this CPU" register view and explicit per-CPU views
*
* In addition, this driver also handles FIQs, as these are routed to the same
- * IRQ vector. These are used for Fast IPIs (TODO), the ARMv8 timer IRQs, and
+ * IRQ vector. These are used for Fast IPIs, the ARMv8 timer IRQs, and
* performance counters (TODO).
*
* Implementation notes:
@@ -52,9 +52,12 @@
#include <linux/irqchip.h>
#include <linux/irqchip/arm-vgic-info.h>
#include <linux/irqdomain.h>
+#include <linux/jump_label.h>
#include <linux/limits.h>
#include <linux/of_address.h>
#include <linux/slab.h>
+#include <asm/apple_m1_pmu.h>
+#include <asm/cputype.h>
#include <asm/exception.h>
#include <asm/sysreg.h>
#include <asm/virt.h>
@@ -62,20 +65,22 @@
#include <dt-bindings/interrupt-controller/apple-aic.h>
/*
- * AIC registers (MMIO)
+ * AIC v1 registers (MMIO)
*/
#define AIC_INFO 0x0004
-#define AIC_INFO_NR_HW GENMASK(15, 0)
+#define AIC_INFO_NR_IRQ GENMASK(15, 0)
#define AIC_CONFIG 0x0010
#define AIC_WHOAMI 0x2000
#define AIC_EVENT 0x2004
-#define AIC_EVENT_TYPE GENMASK(31, 16)
+#define AIC_EVENT_DIE GENMASK(31, 24)
+#define AIC_EVENT_TYPE GENMASK(23, 16)
#define AIC_EVENT_NUM GENMASK(15, 0)
-#define AIC_EVENT_TYPE_HW 1
+#define AIC_EVENT_TYPE_FIQ 0 /* Software use */
+#define AIC_EVENT_TYPE_IRQ 1
#define AIC_EVENT_TYPE_IPI 4
#define AIC_EVENT_IPI_OTHER 1
#define AIC_EVENT_IPI_SELF 2
@@ -91,34 +96,73 @@
#define AIC_IPI_SELF BIT(31)
#define AIC_TARGET_CPU 0x3000
-#define AIC_SW_SET 0x4000
-#define AIC_SW_CLR 0x4080
-#define AIC_MASK_SET 0x4100
-#define AIC_MASK_CLR 0x4180
#define AIC_CPU_IPI_SET(cpu) (0x5008 + ((cpu) << 7))
#define AIC_CPU_IPI_CLR(cpu) (0x500c + ((cpu) << 7))
#define AIC_CPU_IPI_MASK_SET(cpu) (0x5024 + ((cpu) << 7))
#define AIC_CPU_IPI_MASK_CLR(cpu) (0x5028 + ((cpu) << 7))
+#define AIC_MAX_IRQ 0x400
+
+/*
+ * AIC v2 registers (MMIO)
+ */
+
+#define AIC2_VERSION 0x0000
+#define AIC2_VERSION_VER GENMASK(7, 0)
+
+#define AIC2_INFO1 0x0004
+#define AIC2_INFO1_NR_IRQ GENMASK(15, 0)
+#define AIC2_INFO1_LAST_DIE GENMASK(27, 24)
+
+#define AIC2_INFO2 0x0008
+
+#define AIC2_INFO3 0x000c
+#define AIC2_INFO3_MAX_IRQ GENMASK(15, 0)
+#define AIC2_INFO3_MAX_DIE GENMASK(27, 24)
+
+#define AIC2_RESET 0x0010
+#define AIC2_RESET_RESET BIT(0)
+
+#define AIC2_CONFIG 0x0014
+#define AIC2_CONFIG_ENABLE BIT(0)
+#define AIC2_CONFIG_PREFER_PCPU BIT(28)
+
+#define AIC2_TIMEOUT 0x0028
+#define AIC2_CLUSTER_PRIO 0x0030
+#define AIC2_DELAY_GROUPS 0x0100
+
+#define AIC2_IRQ_CFG 0x2000
+
+/*
+ * AIC2 registers are laid out like this, starting at AIC2_IRQ_CFG:
+ *
+ * Repeat for each die:
+ * IRQ_CFG: u32 * MAX_IRQS
+ * SW_SET: u32 * (MAX_IRQS / 32)
+ * SW_CLR: u32 * (MAX_IRQS / 32)
+ * MASK_SET: u32 * (MAX_IRQS / 32)
+ * MASK_CLR: u32 * (MAX_IRQS / 32)
+ * HW_STATE: u32 * (MAX_IRQS / 32)
+ *
+ * This is followed by a set of event registers, each 16K page aligned.
+ * The first one is the AP event register we will use. Unfortunately,
+ * the actual implemented die count is not specified anywhere in the
+ * capability registers, so we have to explicitly specify the event
+ * register as a second reg entry in the device tree to remain
+ * forward-compatible.
+ */
+
+#define AIC2_IRQ_CFG_TARGET GENMASK(3, 0)
+#define AIC2_IRQ_CFG_DELAY_IDX GENMASK(7, 5)
+
#define MASK_REG(x) (4 * ((x) >> 5))
#define MASK_BIT(x) BIT((x) & GENMASK(4, 0))
/*
* IMP-DEF sysregs that control FIQ sources
- * Note: sysreg-based IPIs are not supported yet.
*/
-/* Core PMC control register */
-#define SYS_IMP_APL_PMCR0_EL1 sys_reg(3, 1, 15, 0, 0)
-#define PMCR0_IMODE GENMASK(10, 8)
-#define PMCR0_IMODE_OFF 0
-#define PMCR0_IMODE_PMI 1
-#define PMCR0_IMODE_AIC 2
-#define PMCR0_IMODE_HALT 3
-#define PMCR0_IMODE_FIQ 4
-#define PMCR0_IACT BIT(11)
-
/* IPI request registers */
#define SYS_IMP_APL_IPI_RR_LOCAL_EL1 sys_reg(3, 5, 15, 0, 0)
#define SYS_IMP_APL_IPI_RR_GLOBAL_EL1 sys_reg(3, 5, 15, 0, 1)
@@ -155,7 +199,18 @@
#define SYS_IMP_APL_UPMSR_EL1 sys_reg(3, 7, 15, 6, 4)
#define UPMSR_IACT BIT(0)
-#define AIC_NR_FIQ 4
+/* MPIDR fields */
+#define MPIDR_CPU(x) MPIDR_AFFINITY_LEVEL(x, 0)
+#define MPIDR_CLUSTER(x) MPIDR_AFFINITY_LEVEL(x, 1)
+
+#define AIC_IRQ_HWIRQ(die, irq) (FIELD_PREP(AIC_EVENT_DIE, die) | \
+ FIELD_PREP(AIC_EVENT_TYPE, AIC_EVENT_TYPE_IRQ) | \
+ FIELD_PREP(AIC_EVENT_NUM, irq))
+#define AIC_FIQ_HWIRQ(x) (FIELD_PREP(AIC_EVENT_TYPE, AIC_EVENT_TYPE_FIQ) | \
+ FIELD_PREP(AIC_EVENT_NUM, x))
+#define AIC_HWIRQ_IRQ(x) FIELD_GET(AIC_EVENT_NUM, x)
+#define AIC_HWIRQ_DIE(x) FIELD_GET(AIC_EVENT_DIE, x)
+#define AIC_NR_FIQ 6
#define AIC_NR_SWIPI 32
/*
@@ -173,11 +228,81 @@
#define AIC_TMR_EL02_PHYS AIC_TMR_GUEST_PHYS
#define AIC_TMR_EL02_VIRT AIC_TMR_GUEST_VIRT
+DEFINE_STATIC_KEY_TRUE(use_fast_ipi);
+
+struct aic_info {
+ int version;
+
+ /* Register offsets */
+ u32 event;
+ u32 target_cpu;
+ u32 irq_cfg;
+ u32 sw_set;
+ u32 sw_clr;
+ u32 mask_set;
+ u32 mask_clr;
+
+ u32 die_stride;
+
+ /* Features */
+ bool fast_ipi;
+};
+
+static const struct aic_info aic1_info = {
+ .version = 1,
+
+ .event = AIC_EVENT,
+ .target_cpu = AIC_TARGET_CPU,
+};
+
+static const struct aic_info aic1_fipi_info = {
+ .version = 1,
+
+ .event = AIC_EVENT,
+ .target_cpu = AIC_TARGET_CPU,
+
+ .fast_ipi = true,
+};
+
+static const struct aic_info aic2_info = {
+ .version = 2,
+
+ .irq_cfg = AIC2_IRQ_CFG,
+
+ .fast_ipi = true,
+};
+
+static const struct of_device_id aic_info_match[] = {
+ {
+ .compatible = "apple,t8103-aic",
+ .data = &aic1_fipi_info,
+ },
+ {
+ .compatible = "apple,aic",
+ .data = &aic1_info,
+ },
+ {
+ .compatible = "apple,aic2",
+ .data = &aic2_info,
+ },
+ {}
+};
+
struct aic_irq_chip {
void __iomem *base;
+ void __iomem *event;
struct irq_domain *hw_domain;
struct irq_domain *ipi_domain;
- int nr_hw;
+ struct {
+ cpumask_t aff;
+ } *fiq_aff[AIC_NR_FIQ];
+
+ int nr_irq;
+ int max_irq;
+ int nr_die;
+ int max_die;
+
+ struct aic_info info;
};
static DEFINE_PER_CPU(uint32_t, aic_fiq_unmasked);
@@ -205,18 +330,24 @@ static void aic_ic_write(struct aic_irq_chip *ic, u32 reg, u32 val)
static void aic_irq_mask(struct irq_data *d)
{
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
struct aic_irq_chip *ic = irq_data_get_irq_chip_data(d);
- aic_ic_write(ic, AIC_MASK_SET + MASK_REG(irqd_to_hwirq(d)),
- MASK_BIT(irqd_to_hwirq(d)));
+ u32 off = AIC_HWIRQ_DIE(hwirq) * ic->info.die_stride;
+ u32 irq = AIC_HWIRQ_IRQ(hwirq);
+
+ aic_ic_write(ic, ic->info.mask_set + off + MASK_REG(irq), MASK_BIT(irq));
}
static void aic_irq_unmask(struct irq_data *d)
{
+ irq_hw_number_t hwirq = irqd_to_hwirq(d);
struct aic_irq_chip *ic = irq_data_get_irq_chip_data(d);
- aic_ic_write(ic, AIC_MASK_CLR + MASK_REG(d->hwirq),
- MASK_BIT(irqd_to_hwirq(d)));
+ u32 off = AIC_HWIRQ_DIE(hwirq) * ic->info.die_stride;
+ u32 irq = AIC_HWIRQ_IRQ(hwirq);
+
+ aic_ic_write(ic, ic->info.mask_clr + off + MASK_REG(irq), MASK_BIT(irq));
}
static void aic_irq_eoi(struct irq_data *d)
@@ -239,12 +370,12 @@ static void __exception_irq_entry aic_handle_irq(struct pt_regs *regs)
* We cannot use a relaxed read here, as reads from DMA buffers
* need to be ordered after the IRQ fires.
*/
- event = readl(ic->base + AIC_EVENT);
+ event = readl(ic->event + ic->info.event);
type = FIELD_GET(AIC_EVENT_TYPE, event);
irq = FIELD_GET(AIC_EVENT_NUM, event);
- if (type == AIC_EVENT_TYPE_HW)
- generic_handle_domain_irq(aic_irqc->hw_domain, irq);
+ if (type == AIC_EVENT_TYPE_IRQ)
+ generic_handle_domain_irq(aic_irqc->hw_domain, event);
else if (type == AIC_EVENT_TYPE_IPI && irq == 1)
aic_handle_ipi(regs);
else if (event != 0)
@@ -271,12 +402,14 @@ static int aic_irq_set_affinity(struct irq_data *d,
struct aic_irq_chip *ic = irq_data_get_irq_chip_data(d);
int cpu;
+ BUG_ON(!ic->info.target_cpu);
+
if (force)
cpu = cpumask_first(mask_val);
else
cpu = cpumask_any_and(mask_val, cpu_online_mask);
- aic_ic_write(ic, AIC_TARGET_CPU + hwirq * 4, BIT(cpu));
+ aic_ic_write(ic, ic->info.target_cpu + AIC_HWIRQ_IRQ(hwirq) * 4, BIT(cpu));
irq_data_update_effective_affinity(d, cpumask_of(cpu));
return IRQ_SET_MASK_OK;
@@ -300,15 +433,21 @@ static struct irq_chip aic_chip = {
.irq_set_type = aic_irq_set_type,
};
+static struct irq_chip aic2_chip = {
+ .name = "AIC2",
+ .irq_mask = aic_irq_mask,
+ .irq_unmask = aic_irq_unmask,
+ .irq_eoi = aic_irq_eoi,
+ .irq_set_type = aic_irq_set_type,
+};
+
/*
* FIQ irqchip
*/
static unsigned long aic_fiq_get_idx(struct irq_data *d)
{
- struct aic_irq_chip *ic = irq_data_get_irq_chip_data(d);
-
- return irqd_to_hwirq(d) - ic->nr_hw;
+ return AIC_HWIRQ_IRQ(irqd_to_hwirq(d));
}
static void aic_fiq_set_mask(struct irq_data *d)
@@ -386,17 +525,21 @@ static void __exception_irq_entry aic_handle_fiq(struct pt_regs *regs)
*/
if (read_sysreg_s(SYS_IMP_APL_IPI_SR_EL1) & IPI_SR_PENDING) {
- pr_err_ratelimited("Fast IPI fired. Acking.\n");
- write_sysreg_s(IPI_SR_PENDING, SYS_IMP_APL_IPI_SR_EL1);
+ if (static_branch_likely(&use_fast_ipi)) {
+ aic_handle_ipi(regs);
+ } else {
+ pr_err_ratelimited("Fast IPI fired. Acking.\n");
+ write_sysreg_s(IPI_SR_PENDING, SYS_IMP_APL_IPI_SR_EL1);
+ }
}
if (TIMER_FIRING(read_sysreg(cntp_ctl_el0)))
generic_handle_domain_irq(aic_irqc->hw_domain,
- aic_irqc->nr_hw + AIC_TMR_EL0_PHYS);
+ AIC_FIQ_HWIRQ(AIC_TMR_EL0_PHYS));
if (TIMER_FIRING(read_sysreg(cntv_ctl_el0)))
generic_handle_domain_irq(aic_irqc->hw_domain,
- aic_irqc->nr_hw + AIC_TMR_EL0_VIRT);
+ AIC_FIQ_HWIRQ(AIC_TMR_EL0_VIRT));
if (is_kernel_in_hyp_mode()) {
uint64_t enabled = read_sysreg_s(SYS_IMP_APL_VM_TMR_FIQ_ENA_EL2);
@@ -404,24 +547,23 @@ static void __exception_irq_entry aic_handle_fiq(struct pt_regs *regs)
if ((enabled & VM_TMR_FIQ_ENABLE_P) &&
TIMER_FIRING(read_sysreg_s(SYS_CNTP_CTL_EL02)))
generic_handle_domain_irq(aic_irqc->hw_domain,
- aic_irqc->nr_hw + AIC_TMR_EL02_PHYS);
+ AIC_FIQ_HWIRQ(AIC_TMR_EL02_PHYS));
if ((enabled & VM_TMR_FIQ_ENABLE_V) &&
TIMER_FIRING(read_sysreg_s(SYS_CNTV_CTL_EL02)))
generic_handle_domain_irq(aic_irqc->hw_domain,
- aic_irqc->nr_hw + AIC_TMR_EL02_VIRT);
+ AIC_FIQ_HWIRQ(AIC_TMR_EL02_VIRT));
}
- if ((read_sysreg_s(SYS_IMP_APL_PMCR0_EL1) & (PMCR0_IMODE | PMCR0_IACT)) ==
- (FIELD_PREP(PMCR0_IMODE, PMCR0_IMODE_FIQ) | PMCR0_IACT)) {
- /*
- * Not supported yet, let's figure out how to handle this when
- * we implement these proprietary performance counters. For now,
- * just mask it and move on.
- */
- pr_err_ratelimited("PMC FIQ fired. Masking.\n");
- sysreg_clear_set_s(SYS_IMP_APL_PMCR0_EL1, PMCR0_IMODE | PMCR0_IACT,
- FIELD_PREP(PMCR0_IMODE, PMCR0_IMODE_OFF));
+ if (read_sysreg_s(SYS_IMP_APL_PMCR0_EL1) & PMCR0_IACT) {
+ int irq;
+ if (cpumask_test_cpu(smp_processor_id(),
+ &aic_irqc->fiq_aff[AIC_CPU_PMU_P]->aff))
+ irq = AIC_CPU_PMU_P;
+ else
+ irq = AIC_CPU_PMU_E;
+ generic_handle_domain_irq(aic_irqc->hw_domain,
+ AIC_FIQ_HWIRQ(irq));
}
if (FIELD_GET(UPMCR0_IMODE, read_sysreg_s(SYS_IMP_APL_UPMCR0_EL1)) == UPMCR0_IMODE_FIQ &&
@@ -455,13 +597,29 @@ static int aic_irq_domain_map(struct irq_domain *id, unsigned int irq,
irq_hw_number_t hw)
{
struct aic_irq_chip *ic = id->host_data;
+ u32 type = FIELD_GET(AIC_EVENT_TYPE, hw);
+ struct irq_chip *chip = &aic_chip;
- if (hw < ic->nr_hw) {
- irq_domain_set_info(id, irq, hw, &aic_chip, id->host_data,
+ if (ic->info.version == 2)
+ chip = &aic2_chip;
+
+ if (type == AIC_EVENT_TYPE_IRQ) {
+ irq_domain_set_info(id, irq, hw, chip, id->host_data,
handle_fasteoi_irq, NULL, NULL);
irqd_set_single_target(irq_desc_get_irq_data(irq_to_desc(irq)));
} else {
- irq_set_percpu_devid(irq);
+ int fiq = FIELD_GET(AIC_EVENT_NUM, hw);
+
+ switch (fiq) {
+ case AIC_CPU_PMU_P:
+ case AIC_CPU_PMU_E:
+ irq_set_percpu_devid_partition(irq, &ic->fiq_aff[fiq]->aff);
+ break;
+ default:
+ irq_set_percpu_devid(irq);
+ break;
+ }
+
irq_domain_set_info(id, irq, hw, &fiq_chip, id->host_data,
handle_percpu_devid_irq, NULL, NULL);
}
@@ -475,32 +633,46 @@ static int aic_irq_domain_translate(struct irq_domain *id,
unsigned int *type)
{
struct aic_irq_chip *ic = id->host_data;
+ u32 *args;
+ u32 die = 0;
- if (fwspec->param_count != 3 || !is_of_node(fwspec->fwnode))
+ if (fwspec->param_count < 3 || fwspec->param_count > 4 ||
+ !is_of_node(fwspec->fwnode))
return -EINVAL;
+ args = &fwspec->param[1];
+
+ if (fwspec->param_count == 4) {
+ die = args[0];
+ args++;
+ }
+
switch (fwspec->param[0]) {
case AIC_IRQ:
- if (fwspec->param[1] >= ic->nr_hw)
+ if (die >= ic->nr_die)
return -EINVAL;
- *hwirq = fwspec->param[1];
+ if (args[0] >= ic->nr_irq)
+ return -EINVAL;
+ *hwirq = AIC_IRQ_HWIRQ(die, args[0]);
break;
case AIC_FIQ:
- if (fwspec->param[1] >= AIC_NR_FIQ)
+ if (die != 0)
+ return -EINVAL;
+ if (args[0] >= AIC_NR_FIQ)
return -EINVAL;
- *hwirq = ic->nr_hw + fwspec->param[1];
+ *hwirq = AIC_FIQ_HWIRQ(args[0]);
/*
* In EL1 the non-redirected registers are the guest's,
* not EL2's, so remap the hwirqs to match.
*/
if (!is_kernel_in_hyp_mode()) {
- switch (fwspec->param[1]) {
+ switch (args[0]) {
case AIC_TMR_GUEST_PHYS:
- *hwirq = ic->nr_hw + AIC_TMR_EL0_PHYS;
+ *hwirq = AIC_FIQ_HWIRQ(AIC_TMR_EL0_PHYS);
break;
case AIC_TMR_GUEST_VIRT:
- *hwirq = ic->nr_hw + AIC_TMR_EL0_VIRT;
+ *hwirq = AIC_FIQ_HWIRQ(AIC_TMR_EL0_VIRT);
break;
case AIC_TMR_HV_PHYS:
case AIC_TMR_HV_VIRT:
@@ -514,7 +686,7 @@ static int aic_irq_domain_translate(struct irq_domain *id,
return -EINVAL;
}
- *type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;
+ *type = args[1] & IRQ_TYPE_SENSE_MASK;
return 0;
}
@@ -563,6 +735,22 @@ static const struct irq_domain_ops aic_irq_domain_ops = {
* IPI irqchip
*/
+static void aic_ipi_send_fast(int cpu)
+{
+ u64 mpidr = cpu_logical_map(cpu);
+ u64 my_mpidr = read_cpuid_mpidr();
+ u64 cluster = MPIDR_CLUSTER(mpidr);
+ u64 idx = MPIDR_CPU(mpidr);
+
+ if (MPIDR_CLUSTER(my_mpidr) == cluster)
+ write_sysreg_s(FIELD_PREP(IPI_RR_CPU, idx),
+ SYS_IMP_APL_IPI_RR_LOCAL_EL1);
+ else
+ write_sysreg_s(FIELD_PREP(IPI_RR_CPU, idx) | FIELD_PREP(IPI_RR_CLUSTER, cluster),
+ SYS_IMP_APL_IPI_RR_GLOBAL_EL1);
+ isb();
+}
+
static void aic_ipi_mask(struct irq_data *d)
{
u32 irq_bit = BIT(irqd_to_hwirq(d));
@@ -588,8 +776,12 @@ static void aic_ipi_unmask(struct irq_data *d)
* If a pending vIPI was unmasked, raise a HW IPI to ourselves.
* No barriers needed here since this is a self-IPI.
*/
- if (atomic_read(this_cpu_ptr(&aic_vipi_flag)) & irq_bit)
- aic_ic_write(ic, AIC_IPI_SEND, AIC_IPI_SEND_CPU(smp_processor_id()));
+ if (atomic_read(this_cpu_ptr(&aic_vipi_flag)) & irq_bit) {
+ if (static_branch_likely(&use_fast_ipi))
+ aic_ipi_send_fast(smp_processor_id());
+ else
+ aic_ic_write(ic, AIC_IPI_SEND, AIC_IPI_SEND_CPU(smp_processor_id()));
+ }
}
static void aic_ipi_send_mask(struct irq_data *d, const struct cpumask *mask)
@@ -617,8 +809,12 @@ static void aic_ipi_send_mask(struct irq_data *d, const struct cpumask *mask)
smp_mb__after_atomic();
if (!(pending & irq_bit) &&
- (atomic_read(per_cpu_ptr(&aic_vipi_enable, cpu)) & irq_bit))
- send |= AIC_IPI_SEND_CPU(cpu);
+ (atomic_read(per_cpu_ptr(&aic_vipi_enable, cpu)) & irq_bit)) {
+ if (static_branch_likely(&use_fast_ipi))
+ aic_ipi_send_fast(cpu);
+ else
+ send |= AIC_IPI_SEND_CPU(cpu);
+ }
}
/*
@@ -650,8 +846,16 @@ static void aic_handle_ipi(struct pt_regs *regs)
/*
* Ack the IPI. We need to order this after the AIC event read, but
* that is enforced by normal MMIO ordering guarantees.
+ *
+ * For the Fast IPI case, this needs to be ordered before the vIPI
+ * handling below, so we need to isb();
*/
- aic_ic_write(aic_irqc, AIC_IPI_ACK, AIC_IPI_OTHER);
+ if (static_branch_likely(&use_fast_ipi)) {
+ write_sysreg_s(IPI_SR_PENDING, SYS_IMP_APL_IPI_SR_EL1);
+ isb();
+ } else {
+ aic_ic_write(aic_irqc, AIC_IPI_ACK, AIC_IPI_OTHER);
+ }
/*
* The mask read does not need to be ordered. Only we can change
@@ -679,7 +883,8 @@ static void aic_handle_ipi(struct pt_regs *regs)
* No ordering needed here; at worst this just changes the timing of
* when the next IPI will be delivered.
*/
- aic_ic_write(aic_irqc, AIC_IPI_MASK_CLR, AIC_IPI_OTHER);
+ if (!static_branch_likely(&use_fast_ipi))
+ aic_ic_write(aic_irqc, AIC_IPI_MASK_CLR, AIC_IPI_OTHER);
}
static int aic_ipi_alloc(struct irq_domain *d, unsigned int virq,
@@ -766,20 +971,27 @@ static int aic_init_cpu(unsigned int cpu)
/* Commit all of the above */
isb();
- /*
- * Make sure the kernel's idea of logical CPU order is the same as AIC's
- * If we ever end up with a mismatch here, we will have to introduce
- * a mapping table similar to what other irqchip drivers do.
- */
- WARN_ON(aic_ic_read(aic_irqc, AIC_WHOAMI) != smp_processor_id());
+ if (aic_irqc->info.version == 1) {
+ /*
+ * Make sure the kernel's idea of logical CPU order is the same as AIC's
+ * If we ever end up with a mismatch here, we will have to introduce
+ * a mapping table similar to what other irqchip drivers do.
+ */
+ WARN_ON(aic_ic_read(aic_irqc, AIC_WHOAMI) != smp_processor_id());
- /*
- * Always keep IPIs unmasked at the hardware level (except auto-masking
- * by AIC during processing). We manage masks at the vIPI level.
- */
- aic_ic_write(aic_irqc, AIC_IPI_ACK, AIC_IPI_SELF | AIC_IPI_OTHER);
- aic_ic_write(aic_irqc, AIC_IPI_MASK_SET, AIC_IPI_SELF);
- aic_ic_write(aic_irqc, AIC_IPI_MASK_CLR, AIC_IPI_OTHER);
+ /*
+ * Always keep IPIs unmasked at the hardware level (except auto-masking
+ * by AIC during processing). We manage masks at the vIPI level.
+ * These registers only exist on AICv1, AICv2 always uses fast IPIs.
+ */
+ aic_ic_write(aic_irqc, AIC_IPI_ACK, AIC_IPI_SELF | AIC_IPI_OTHER);
+ if (static_branch_likely(&use_fast_ipi)) {
+ aic_ic_write(aic_irqc, AIC_IPI_MASK_SET, AIC_IPI_SELF | AIC_IPI_OTHER);
+ } else {
+ aic_ic_write(aic_irqc, AIC_IPI_MASK_SET, AIC_IPI_SELF);
+ aic_ic_write(aic_irqc, AIC_IPI_MASK_CLR, AIC_IPI_OTHER);
+ }
+ }
/* Initialize the local mask state */
__this_cpu_write(aic_fiq_unmasked, 0);
@@ -793,68 +1005,193 @@ static struct gic_kvm_info vgic_info __initdata = {
.no_hw_deactivation = true,
};
+static void build_fiq_affinity(struct aic_irq_chip *ic, struct device_node *aff)
+{
+ int i, n;
+ u32 fiq;
+
+ if (of_property_read_u32(aff, "apple,fiq-index", &fiq) ||
+ WARN_ON(fiq >= AIC_NR_FIQ) || ic->fiq_aff[fiq])
+ return;
+
+ n = of_property_count_elems_of_size(aff, "cpus", sizeof(u32));
+ if (WARN_ON(n < 0))
+ return;
+
+ ic->fiq_aff[fiq] = kzalloc(sizeof(*ic->fiq_aff[fiq]), GFP_KERNEL);
+ if (!ic->fiq_aff[fiq])
+ return;
+
+ for (i = 0; i < n; i++) {
+ struct device_node *cpu_node;
+ u32 cpu_phandle;
+ int cpu;
+
+ if (of_property_read_u32_index(aff, "cpus", i, &cpu_phandle))
+ continue;
+
+ cpu_node = of_find_node_by_phandle(cpu_phandle);
+ if (WARN_ON(!cpu_node))
+ continue;
+
+ cpu = of_cpu_node_to_id(cpu_node);
+ if (WARN_ON(cpu < 0))
+ continue;
+
+ cpumask_set_cpu(cpu, &ic->fiq_aff[fiq]->aff);
+ }
+}
+
static int __init aic_of_ic_init(struct device_node *node, struct device_node *parent)
{
- int i;
+ int i, die;
+ u32 off, start_off;
void __iomem *regs;
- u32 info;
struct aic_irq_chip *irqc;
+ struct device_node *affs;
+ const struct of_device_id *match;
regs = of_iomap(node, 0);
if (WARN_ON(!regs))
return -EIO;
irqc = kzalloc(sizeof(*irqc), GFP_KERNEL);
- if (!irqc)
+ if (!irqc) {
+ iounmap(regs);
return -ENOMEM;
+ }
- aic_irqc = irqc;
irqc->base = regs;
- info = aic_ic_read(irqc, AIC_INFO);
- irqc->nr_hw = FIELD_GET(AIC_INFO_NR_HW, info);
+ match = of_match_node(aic_info_match, node);
+ if (!match)
+ goto err_unmap;
- irqc->hw_domain = irq_domain_create_linear(of_node_to_fwnode(node),
- irqc->nr_hw + AIC_NR_FIQ,
- &aic_irq_domain_ops, irqc);
- if (WARN_ON(!irqc->hw_domain)) {
- iounmap(irqc->base);
- kfree(irqc);
- return -ENODEV;
+ irqc->info = *(struct aic_info *)match->data;
+
+ aic_irqc = irqc;
+
+ switch (irqc->info.version) {
+ case 1: {
+ u32 info;
+
+ info = aic_ic_read(irqc, AIC_INFO);
+ irqc->nr_irq = FIELD_GET(AIC_INFO_NR_IRQ, info);
+ irqc->max_irq = AIC_MAX_IRQ;
+ irqc->nr_die = irqc->max_die = 1;
+
+ off = start_off = irqc->info.target_cpu;
+ off += sizeof(u32) * irqc->max_irq; /* TARGET_CPU */
+
+ irqc->event = irqc->base;
+
+ break;
}
+ case 2: {
+ u32 info1, info3;
+
+ info1 = aic_ic_read(irqc, AIC2_INFO1);
+ info3 = aic_ic_read(irqc, AIC2_INFO3);
+
+ irqc->nr_irq = FIELD_GET(AIC2_INFO1_NR_IRQ, info1);
+ irqc->max_irq = FIELD_GET(AIC2_INFO3_MAX_IRQ, info3);
+ irqc->nr_die = FIELD_GET(AIC2_INFO1_LAST_DIE, info1) + 1;
+ irqc->max_die = FIELD_GET(AIC2_INFO3_MAX_DIE, info3);
+
+ off = start_off = irqc->info.irq_cfg;
+ off += sizeof(u32) * irqc->max_irq; /* IRQ_CFG */
+
+ irqc->event = of_iomap(node, 1);
+ if (WARN_ON(!irqc->event))
+ goto err_unmap;
+
+ break;
+ }
+ }
+
+ irqc->info.sw_set = off;
+ off += sizeof(u32) * (irqc->max_irq >> 5); /* SW_SET */
+ irqc->info.sw_clr = off;
+ off += sizeof(u32) * (irqc->max_irq >> 5); /* SW_CLR */
+ irqc->info.mask_set = off;
+ off += sizeof(u32) * (irqc->max_irq >> 5); /* MASK_SET */
+ irqc->info.mask_clr = off;
+ off += sizeof(u32) * (irqc->max_irq >> 5); /* MASK_CLR */
+ off += sizeof(u32) * (irqc->max_irq >> 5); /* HW_STATE */
+
+ if (irqc->info.fast_ipi)
+ static_branch_enable(&use_fast_ipi);
+ else
+ static_branch_disable(&use_fast_ipi);
+
+ irqc->info.die_stride = off - start_off;
+
+ irqc->hw_domain = irq_domain_create_tree(of_node_to_fwnode(node),
+ &aic_irq_domain_ops, irqc);
+ if (WARN_ON(!irqc->hw_domain))
+ goto err_unmap;
irq_domain_update_bus_token(irqc->hw_domain, DOMAIN_BUS_WIRED);
- if (aic_init_smp(irqc, node)) {
- irq_domain_remove(irqc->hw_domain);
- iounmap(irqc->base);
- kfree(irqc);
- return -ENODEV;
+ if (aic_init_smp(irqc, node))
+ goto err_remove_domain;
+
+ affs = of_get_child_by_name(node, "affinities");
+ if (affs) {
+ struct device_node *chld;
+
+ for_each_child_of_node(affs, chld)
+ build_fiq_affinity(irqc, chld);
}
set_handle_irq(aic_handle_irq);
set_handle_fiq(aic_handle_fiq);
- for (i = 0; i < BITS_TO_U32(irqc->nr_hw); i++)
- aic_ic_write(irqc, AIC_MASK_SET + i * 4, U32_MAX);
- for (i = 0; i < BITS_TO_U32(irqc->nr_hw); i++)
- aic_ic_write(irqc, AIC_SW_CLR + i * 4, U32_MAX);
- for (i = 0; i < irqc->nr_hw; i++)
- aic_ic_write(irqc, AIC_TARGET_CPU + i * 4, 1);
+ off = 0;
+ for (die = 0; die < irqc->nr_die; die++) {
+ for (i = 0; i < BITS_TO_U32(irqc->nr_irq); i++)
+ aic_ic_write(irqc, irqc->info.mask_set + off + i * 4, U32_MAX);
+ for (i = 0; i < BITS_TO_U32(irqc->nr_irq); i++)
+ aic_ic_write(irqc, irqc->info.sw_clr + off + i * 4, U32_MAX);
+ if (irqc->info.target_cpu)
+ for (i = 0; i < irqc->nr_irq; i++)
+ aic_ic_write(irqc, irqc->info.target_cpu + off + i * 4, 1);
+ off += irqc->info.die_stride;
+ }
+
+ if (irqc->info.version == 2) {
+ u32 config = aic_ic_read(irqc, AIC2_CONFIG);
+
+ config |= AIC2_CONFIG_ENABLE;
+ aic_ic_write(irqc, AIC2_CONFIG, config);
+ }
if (!is_kernel_in_hyp_mode())
pr_info("Kernel running in EL1, mapping interrupts");
+ if (static_branch_likely(&use_fast_ipi))
+ pr_info("Using Fast IPIs");
+
cpuhp_setup_state(CPUHP_AP_IRQ_APPLE_AIC_STARTING,
"irqchip/apple-aic/ipi:starting",
aic_init_cpu, NULL);
vgic_set_kvm_info(&vgic_info);
- pr_info("Initialized with %d IRQs, %d FIQs, %d vIPIs\n",
- irqc->nr_hw, AIC_NR_FIQ, AIC_NR_SWIPI);
+ pr_info("Initialized with %d/%d IRQs * %d/%d die(s), %d FIQs, %d vIPIs",
+ irqc->nr_irq, irqc->max_irq, irqc->nr_die, irqc->max_die, AIC_NR_FIQ, AIC_NR_SWIPI);
return 0;
+
+err_remove_domain:
+ irq_domain_remove(irqc->hw_domain);
+err_unmap:
+ if (irqc->event && irqc->event != irqc->base)
+ iounmap(irqc->event);
+ iounmap(irqc->base);
+ kfree(irqc);
+ return -ENODEV;
}
-IRQCHIP_DECLARE(apple_m1_aic, "apple,aic", aic_of_ic_init);
+IRQCHIP_DECLARE(apple_aic, "apple,aic", aic_of_ic_init);
+IRQCHIP_DECLARE(apple_aic2, "apple,aic2", aic_of_ic_init);
diff --git a/drivers/irqchip/irq-ftintc010.c b/drivers/irqchip/irq-ftintc010.c
index 5cc268880f8e..46a3aa60e50e 100644
--- a/drivers/irqchip/irq-ftintc010.c
+++ b/drivers/irqchip/irq-ftintc010.c
@@ -11,7 +11,6 @@
#include <linux/irq.h>
#include <linux/io.h>
#include <linux/irqchip.h>
-#include <linux/irqchip/versatile-fpga.h>
#include <linux/irqdomain.h>
#include <linux/module.h>
#include <linux/of.h>
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 5e935d97207d..0efe1a9a9f3b 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -1211,7 +1211,7 @@ static void gic_ipi_send_mask(struct irq_data *d, const struct cpumask *mask)
* Ensure that stores to Normal memory are visible to the
* other CPUs before issuing the IPI.
*/
- wmb();
+ dsb(ishst);
for_each_cpu(cpu, mask) {
u64 cluster_id = MPIDR_TO_SGI_CLUSTER_ID(cpu_logical_map(cpu));
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index b8bb46c65a97..58ba835bee1f 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -34,6 +34,7 @@
#include <linux/irqdomain.h>
#include <linux/interrupt.h>
#include <linux/percpu.h>
+#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/irqchip.h>
#include <linux/irqchip/chained_irq.h>
@@ -66,7 +67,6 @@ union gic_base {
};
struct gic_chip_data {
- struct irq_chip chip;
union gic_base dist_base;
union gic_base cpu_base;
void __iomem *raw_dist_base;
@@ -397,18 +397,15 @@ static void gic_handle_cascade_irq(struct irq_desc *desc)
chained_irq_exit(chip, desc);
}
-static const struct irq_chip gic_chip = {
- .irq_mask = gic_mask_irq,
- .irq_unmask = gic_unmask_irq,
- .irq_eoi = gic_eoi_irq,
- .irq_set_type = gic_set_type,
- .irq_retrigger = gic_retrigger,
- .irq_get_irqchip_state = gic_irq_get_irqchip_state,
- .irq_set_irqchip_state = gic_irq_set_irqchip_state,
- .flags = IRQCHIP_SET_TYPE_MASKED |
- IRQCHIP_SKIP_SET_WAKE |
- IRQCHIP_MASK_ON_SUSPEND,
-};
+static void gic_irq_print_chip(struct irq_data *d, struct seq_file *p)
+{
+ struct gic_chip_data *gic = irq_data_get_irq_chip_data(d);
+
+ if (gic->domain->dev)
+ seq_printf(p, gic->domain->dev->of_node->name);
+ else
+ seq_printf(p, "GIC-%d", (int)(gic - &gic_data[0]));
+}
void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq)
{
@@ -799,8 +796,12 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
bool force)
{
void __iomem *reg = gic_dist_base(d) + GIC_DIST_TARGET + gic_irq(d);
+ struct gic_chip_data *gic = irq_data_get_irq_chip_data(d);
unsigned int cpu;
+ if (unlikely(gic != &gic_data[0]))
+ return -EINVAL;
+
if (!force)
cpu = cpumask_any_and(mask_val, cpu_online_mask);
else
@@ -880,6 +881,39 @@ static __init void gic_smp_init(void)
#define gic_ipi_send_mask NULL
#endif
+static const struct irq_chip gic_chip = {
+ .irq_mask = gic_mask_irq,
+ .irq_unmask = gic_unmask_irq,
+ .irq_eoi = gic_eoi_irq,
+ .irq_set_type = gic_set_type,
+ .irq_retrigger = gic_retrigger,
+ .irq_set_affinity = gic_set_affinity,
+ .ipi_send_mask = gic_ipi_send_mask,
+ .irq_get_irqchip_state = gic_irq_get_irqchip_state,
+ .irq_set_irqchip_state = gic_irq_set_irqchip_state,
+ .irq_print_chip = gic_irq_print_chip,
+ .flags = IRQCHIP_SET_TYPE_MASKED |
+ IRQCHIP_SKIP_SET_WAKE |
+ IRQCHIP_MASK_ON_SUSPEND,
+};
+
+static const struct irq_chip gic_chip_mode1 = {
+ .name = "GICv2",
+ .irq_mask = gic_eoimode1_mask_irq,
+ .irq_unmask = gic_unmask_irq,
+ .irq_eoi = gic_eoimode1_eoi_irq,
+ .irq_set_type = gic_set_type,
+ .irq_retrigger = gic_retrigger,
+ .irq_set_affinity = gic_set_affinity,
+ .ipi_send_mask = gic_ipi_send_mask,
+ .irq_get_irqchip_state = gic_irq_get_irqchip_state,
+ .irq_set_irqchip_state = gic_irq_set_irqchip_state,
+ .irq_set_vcpu_affinity = gic_irq_set_vcpu_affinity,
+ .flags = IRQCHIP_SET_TYPE_MASKED |
+ IRQCHIP_SKIP_SET_WAKE |
+ IRQCHIP_MASK_ON_SUSPEND,
+};
+
#ifdef CONFIG_BL_SWITCHER
/*
* gic_send_sgi - send a SGI directly to given CPU interface number
@@ -1024,15 +1058,19 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq,
{
struct gic_chip_data *gic = d->host_data;
struct irq_data *irqd = irq_desc_get_irq_data(irq_to_desc(irq));
+ const struct irq_chip *chip;
+
+ chip = (static_branch_likely(&supports_deactivate_key) &&
+ gic == &gic_data[0]) ? &gic_chip_mode1 : &gic_chip;
switch (hw) {
case 0 ... 31:
irq_set_percpu_devid(irq);
- irq_domain_set_info(d, irq, hw, &gic->chip, d->host_data,
+ irq_domain_set_info(d, irq, hw, chip, d->host_data,
handle_percpu_devid_irq, NULL, NULL);
break;
default:
- irq_domain_set_info(d, irq, hw, &gic->chip, d->host_data,
+ irq_domain_set_info(d, irq, hw, chip, d->host_data,
handle_fasteoi_irq, NULL, NULL);
irq_set_probe(irq);
irqd_set_single_target(irqd);
@@ -1127,26 +1165,6 @@ static const struct irq_domain_ops gic_irq_domain_ops = {
.unmap = gic_irq_domain_unmap,
};
-static void gic_init_chip(struct gic_chip_data *gic, struct device *dev,
- const char *name, bool use_eoimode1)
-{
- /* Initialize irq_chip */
- gic->chip = gic_chip;
- gic->chip.name = name;
- gic->chip.parent_device = dev;
-
- if (use_eoimode1) {
- gic->chip.irq_mask = gic_eoimode1_mask_irq;
- gic->chip.irq_eoi = gic_eoimode1_eoi_irq;
- gic->chip.irq_set_vcpu_affinity = gic_irq_set_vcpu_affinity;
- }
-
- if (gic == &gic_data[0]) {
- gic->chip.irq_set_affinity = gic_set_affinity;
- gic->chip.ipi_send_mask = gic_ipi_send_mask;
- }
-}
-
static int gic_init_bases(struct gic_chip_data *gic,
struct fwnode_handle *handle)
{
@@ -1246,7 +1264,6 @@ static int gic_init_bases(struct gic_chip_data *gic,
static int __init __gic_init_bases(struct gic_chip_data *gic,
struct fwnode_handle *handle)
{
- char *name;
int i, ret;
if (WARN_ON(!gic || gic->domain))
@@ -1266,18 +1283,8 @@ static int __init __gic_init_bases(struct gic_chip_data *gic,
pr_info("GIC: Using split EOI/Deactivate mode\n");
}
- if (static_branch_likely(&supports_deactivate_key) && gic == &gic_data[0]) {
- name = kasprintf(GFP_KERNEL, "GICv2");
- gic_init_chip(gic, NULL, name, true);
- } else {
- name = kasprintf(GFP_KERNEL, "GIC-%d", (int)(gic-&gic_data[0]));
- gic_init_chip(gic, NULL, name, false);
- }
-
ret = gic_init_bases(gic, handle);
- if (ret)
- kfree(name);
- else if (gic == &gic_data[0])
+ if (gic == &gic_data[0])
gic_smp_init();
return ret;
@@ -1460,8 +1467,6 @@ int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq)
if (!*gic)
return -ENOMEM;
- gic_init_chip(*gic, dev, dev->of_node->name, false);
-
ret = gic_of_setup(*gic, dev->of_node);
if (ret)
return ret;
@@ -1472,6 +1477,7 @@ int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq)
return ret;
}
+ irq_domain_set_pm_device((*gic)->domain, dev);
irq_set_chained_handler_and_data(irq, gic_handle_cascade_irq, *gic);
return 0;
diff --git a/drivers/irqchip/irq-imx-intmux.c b/drivers/irqchip/irq-imx-intmux.c
index e86ff743e98c..80aaea82468a 100644
--- a/drivers/irqchip/irq-imx-intmux.c
+++ b/drivers/irqchip/irq-imx-intmux.c
@@ -61,7 +61,6 @@
#define CHAN_MAX_NUM 0x8
struct intmux_irqchip_data {
- struct irq_chip chip;
u32 saved_reg;
int chanidx;
int irq;
@@ -114,7 +113,7 @@ static void imx_intmux_irq_unmask(struct irq_data *d)
raw_spin_unlock_irqrestore(&data->lock, flags);
}
-static struct irq_chip imx_intmux_irq_chip = {
+static struct irq_chip imx_intmux_irq_chip __ro_after_init = {
.name = "intmux",
.irq_mask = imx_intmux_irq_mask,
.irq_unmask = imx_intmux_irq_unmask,
@@ -126,7 +125,7 @@ static int imx_intmux_irq_map(struct irq_domain *h, unsigned int irq,
struct intmux_irqchip_data *data = h->host_data;
irq_set_chip_data(irq, data);
- irq_set_chip_and_handler(irq, &data->chip, handle_level_irq);
+ irq_set_chip_and_handler(irq, &imx_intmux_irq_chip, handle_level_irq);
return 0;
}
@@ -241,8 +240,6 @@ static int imx_intmux_probe(struct platform_device *pdev)
}
for (i = 0; i < channum; i++) {
- data->irqchip_data[i].chip = imx_intmux_irq_chip;
- data->irqchip_data[i].chip.parent_device = &pdev->dev;
data->irqchip_data[i].chanidx = i;
data->irqchip_data[i].irq = irq_of_parse_and_map(np, i);
@@ -260,6 +257,7 @@ static int imx_intmux_probe(struct platform_device *pdev)
goto out;
}
data->irqchip_data[i].domain = domain;
+ irq_domain_set_pm_device(domain, &pdev->dev);
/* disable all interrupt sources of this channel firstly */
writel_relaxed(0, data->regs + CHANIER(i));
diff --git a/drivers/irqchip/irq-lpc32xx.c b/drivers/irqchip/irq-lpc32xx.c
index a29357f39450..4d70a857133f 100644
--- a/drivers/irqchip/irq-lpc32xx.c
+++ b/drivers/irqchip/irq-lpc32xx.c
@@ -11,6 +11,7 @@
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/of_platform.h>
+#include <linux/seq_file.h>
#include <linux/slab.h>
#include <asm/exception.h>
@@ -25,8 +26,8 @@
struct lpc32xx_irq_chip {
void __iomem *base;
+ phys_addr_t addr;
struct irq_domain *domain;
- struct irq_chip chip;
};
static struct lpc32xx_irq_chip *lpc32xx_mic_irqc;
@@ -118,6 +119,24 @@ static int lpc32xx_irq_set_type(struct irq_data *d, unsigned int type)
return 0;
}
+static void lpc32xx_irq_print_chip(struct irq_data *d, struct seq_file *p)
+{
+ struct lpc32xx_irq_chip *ic = irq_data_get_irq_chip_data(d);
+
+ if (ic == lpc32xx_mic_irqc)
+ seq_printf(p, "%08x.mic", ic->addr);
+ else
+ seq_printf(p, "%08x.sic", ic->addr);
+}
+
+static const struct irq_chip lpc32xx_chip = {
+ .irq_ack = lpc32xx_irq_ack,
+ .irq_mask = lpc32xx_irq_mask,
+ .irq_unmask = lpc32xx_irq_unmask,
+ .irq_set_type = lpc32xx_irq_set_type,
+ .irq_print_chip = lpc32xx_irq_print_chip,
+};
+
static void __exception_irq_entry lpc32xx_handle_irq(struct pt_regs *regs)
{
struct lpc32xx_irq_chip *ic = lpc32xx_mic_irqc;
@@ -153,7 +172,7 @@ static int lpc32xx_irq_domain_map(struct irq_domain *id, unsigned int virq,
struct lpc32xx_irq_chip *ic = id->host_data;
irq_set_chip_data(virq, ic);
- irq_set_chip_and_handler(virq, &ic->chip, handle_level_irq);
+ irq_set_chip_and_handler(virq, &lpc32xx_chip, handle_level_irq);
irq_set_status_flags(virq, IRQ_LEVEL);
irq_set_noprobe(virq);
@@ -183,6 +202,7 @@ static int __init lpc32xx_of_ic_init(struct device_node *node,
if (!irqc)
return -ENOMEM;
+ irqc->addr = addr;
irqc->base = of_iomap(node, 0);
if (!irqc->base) {
pr_err("%pOF: unable to map registers\n", node);
@@ -190,21 +210,11 @@ static int __init lpc32xx_of_ic_init(struct device_node *node,
return -EINVAL;
}
- irqc->chip.irq_ack = lpc32xx_irq_ack;
- irqc->chip.irq_mask = lpc32xx_irq_mask;
- irqc->chip.irq_unmask = lpc32xx_irq_unmask;
- irqc->chip.irq_set_type = lpc32xx_irq_set_type;
- if (is_mic)
- irqc->chip.name = kasprintf(GFP_KERNEL, "%08x.mic", addr);
- else
- irqc->chip.name = kasprintf(GFP_KERNEL, "%08x.sic", addr);
-
irqc->domain = irq_domain_add_linear(node, NR_LPC32XX_IC_IRQS,
&lpc32xx_irq_domain_ops, irqc);
if (!irqc->domain) {
pr_err("unable to add irq domain\n");
iounmap(irqc->base);
- kfree(irqc->chip.name);
kfree(irqc);
return -ENODEV;
}
diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c
index d90ff0b92480..2aaa9aad3e87 100644
--- a/drivers/irqchip/irq-meson-gpio.c
+++ b/drivers/irqchip/irq-meson-gpio.c
@@ -16,7 +16,7 @@
#include <linux/of.h>
#include <linux/of_address.h>
-#define NUM_CHANNEL 8
+#define MAX_NUM_CHANNEL 64
#define MAX_INPUT_MUX 256
#define REG_EDGE_POL 0x00
@@ -26,6 +26,8 @@
/* use for A1 like chips */
#define REG_PIN_A1_SEL 0x04
+/* Used for s4 chips */
+#define REG_EDGE_POL_S4 0x1c
/*
* Note: The S905X3 datasheet reports that BOTH_EDGE is controlled by
@@ -51,15 +53,22 @@ static void meson_a1_gpio_irq_sel_pin(struct meson_gpio_irq_controller *ctl,
unsigned int channel,
unsigned long hwirq);
static void meson_a1_gpio_irq_init(struct meson_gpio_irq_controller *ctl);
+static int meson8_gpio_irq_set_type(struct meson_gpio_irq_controller *ctl,
+ unsigned int type, u32 *channel_hwirq);
+static int meson_s4_gpio_irq_set_type(struct meson_gpio_irq_controller *ctl,
+ unsigned int type, u32 *channel_hwirq);
struct irq_ctl_ops {
void (*gpio_irq_sel_pin)(struct meson_gpio_irq_controller *ctl,
unsigned int channel, unsigned long hwirq);
void (*gpio_irq_init)(struct meson_gpio_irq_controller *ctl);
+ int (*gpio_irq_set_type)(struct meson_gpio_irq_controller *ctl,
+ unsigned int type, u32 *channel_hwirq);
};
struct meson_gpio_irq_params {
unsigned int nr_hwirq;
+ unsigned int nr_channels;
bool support_edge_both;
unsigned int edge_both_offset;
unsigned int edge_single_offset;
@@ -68,28 +77,44 @@ struct meson_gpio_irq_params {
struct irq_ctl_ops ops;
};
-#define INIT_MESON_COMMON(irqs, init, sel) \
+#define INIT_MESON_COMMON(irqs, init, sel, type) \
.nr_hwirq = irqs, \
.ops = { \
.gpio_irq_init = init, \
.gpio_irq_sel_pin = sel, \
+ .gpio_irq_set_type = type, \
},
#define INIT_MESON8_COMMON_DATA(irqs) \
INIT_MESON_COMMON(irqs, meson_gpio_irq_init_dummy, \
- meson8_gpio_irq_sel_pin) \
+ meson8_gpio_irq_sel_pin, \
+ meson8_gpio_irq_set_type) \
.edge_single_offset = 0, \
.pol_low_offset = 16, \
.pin_sel_mask = 0xff, \
+ .nr_channels = 8, \
#define INIT_MESON_A1_COMMON_DATA(irqs) \
INIT_MESON_COMMON(irqs, meson_a1_gpio_irq_init, \
- meson_a1_gpio_irq_sel_pin) \
+ meson_a1_gpio_irq_sel_pin, \
+ meson8_gpio_irq_set_type) \
.support_edge_both = true, \
.edge_both_offset = 16, \
.edge_single_offset = 8, \
.pol_low_offset = 0, \
.pin_sel_mask = 0x7f, \
+ .nr_channels = 8, \
+
+#define INIT_MESON_S4_COMMON_DATA(irqs) \
+ INIT_MESON_COMMON(irqs, meson_a1_gpio_irq_init, \
+ meson_a1_gpio_irq_sel_pin, \
+ meson_s4_gpio_irq_set_type) \
+ .support_edge_both = true, \
+ .edge_both_offset = 0, \
+ .edge_single_offset = 12, \
+ .pol_low_offset = 0, \
+ .pin_sel_mask = 0xff, \
+ .nr_channels = 12, \
static const struct meson_gpio_irq_params meson8_params = {
INIT_MESON8_COMMON_DATA(134)
@@ -121,6 +146,10 @@ static const struct meson_gpio_irq_params a1_params = {
INIT_MESON_A1_COMMON_DATA(62)
};
+static const struct meson_gpio_irq_params s4_params = {
+ INIT_MESON_S4_COMMON_DATA(82)
+};
+
static const struct of_device_id meson_irq_gpio_matches[] = {
{ .compatible = "amlogic,meson8-gpio-intc", .data = &meson8_params },
{ .compatible = "amlogic,meson8b-gpio-intc", .data = &meson8b_params },
@@ -130,14 +159,15 @@ static const struct of_device_id meson_irq_gpio_matches[] = {
{ .compatible = "amlogic,meson-g12a-gpio-intc", .data = &axg_params },
{ .compatible = "amlogic,meson-sm1-gpio-intc", .data = &sm1_params },
{ .compatible = "amlogic,meson-a1-gpio-intc", .data = &a1_params },
+ { .compatible = "amlogic,meson-s4-gpio-intc", .data = &s4_params },
{ }
};
struct meson_gpio_irq_controller {
const struct meson_gpio_irq_params *params;
void __iomem *base;
- u32 channel_irqs[NUM_CHANNEL];
- DECLARE_BITMAP(channel_map, NUM_CHANNEL);
+ u32 channel_irqs[MAX_NUM_CHANNEL];
+ DECLARE_BITMAP(channel_map, MAX_NUM_CHANNEL);
spinlock_t lock;
};
@@ -207,8 +237,8 @@ meson_gpio_irq_request_channel(struct meson_gpio_irq_controller *ctl,
spin_lock_irqsave(&ctl->lock, flags);
/* Find a free channel */
- idx = find_first_zero_bit(ctl->channel_map, NUM_CHANNEL);
- if (idx >= NUM_CHANNEL) {
+ idx = find_first_zero_bit(ctl->channel_map, ctl->params->nr_channels);
+ if (idx >= ctl->params->nr_channels) {
spin_unlock_irqrestore(&ctl->lock, flags);
pr_err("No channel available\n");
return -ENOSPC;
@@ -256,9 +286,8 @@ meson_gpio_irq_release_channel(struct meson_gpio_irq_controller *ctl,
clear_bit(idx, ctl->channel_map);
}
-static int meson_gpio_irq_type_setup(struct meson_gpio_irq_controller *ctl,
- unsigned int type,
- u32 *channel_hwirq)
+static int meson8_gpio_irq_set_type(struct meson_gpio_irq_controller *ctl,
+ unsigned int type, u32 *channel_hwirq)
{
u32 val = 0;
unsigned int idx;
@@ -299,6 +328,51 @@ static int meson_gpio_irq_type_setup(struct meson_gpio_irq_controller *ctl,
return 0;
}
+/*
+ * gpio irq relative registers for s4
+ * -PADCTRL_GPIO_IRQ_CTRL0
+ * bit[31]: enable/disable all the irq lines
+ * bit[12-23]: single edge trigger
+ * bit[0-11]: polarity trigger
+ *
+ * -PADCTRL_GPIO_IRQ_CTRL[X]
+ * bit[0-16]: 7 bits to choose gpio source for irq line 2*[X] - 2
+ * bit[16-22]:7 bits to choose gpio source for irq line 2*[X] - 1
+ * where X = 1-6
+ *
+ * -PADCTRL_GPIO_IRQ_CTRL[7]
+ * bit[0-11]: both edge trigger
+ */
+static int meson_s4_gpio_irq_set_type(struct meson_gpio_irq_controller *ctl,
+ unsigned int type, u32 *channel_hwirq)
+{
+ u32 val = 0;
+ unsigned int idx;
+
+ idx = meson_gpio_irq_get_channel_idx(ctl, channel_hwirq);
+
+ type &= IRQ_TYPE_SENSE_MASK;
+
+ meson_gpio_irq_update_bits(ctl, REG_EDGE_POL_S4, BIT(idx), 0);
+
+ if (type == IRQ_TYPE_EDGE_BOTH) {
+ val |= BIT(ctl->params->edge_both_offset + idx);
+ meson_gpio_irq_update_bits(ctl, REG_EDGE_POL_S4,
+ BIT(ctl->params->edge_both_offset + idx), val);
+ return 0;
+ }
+
+ if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING))
+ val |= BIT(ctl->params->pol_low_offset + idx);
+
+ if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+ val |= BIT(ctl->params->edge_single_offset + idx);
+
+ meson_gpio_irq_update_bits(ctl, REG_EDGE_POL,
+ BIT(idx) | BIT(12 + idx), val);
+ return 0;
+};
+
static unsigned int meson_gpio_irq_type_output(unsigned int type)
{
unsigned int sense = type & IRQ_TYPE_SENSE_MASK;
@@ -323,7 +397,7 @@ static int meson_gpio_irq_set_type(struct irq_data *data, unsigned int type)
u32 *channel_hwirq = irq_data_get_irq_chip_data(data);
int ret;
- ret = meson_gpio_irq_type_setup(ctl, type, channel_hwirq);
+ ret = ctl->params->ops.gpio_irq_set_type(ctl, type, channel_hwirq);
if (ret)
return ret;
@@ -450,10 +524,10 @@ static int meson_gpio_irq_parse_dt(struct device_node *node, struct meson_gpio_i
ret = of_property_read_variable_u32_array(node,
"amlogic,channel-interrupts",
ctl->channel_irqs,
- NUM_CHANNEL,
- NUM_CHANNEL);
+ ctl->params->nr_channels,
+ ctl->params->nr_channels);
if (ret < 0) {
- pr_err("can't get %d channel interrupts\n", NUM_CHANNEL);
+ pr_err("can't get %d channel interrupts\n", ctl->params->nr_channels);
return ret;
}
@@ -507,7 +581,7 @@ static int meson_gpio_irq_of_init(struct device_node *node, struct device_node *
}
pr_info("%d to %d gpio interrupt mux initialized\n",
- ctl->params->nr_hwirq, NUM_CHANNEL);
+ ctl->params->nr_hwirq, ctl->params->nr_channels);
return 0;
diff --git a/drivers/irqchip/irq-mvebu-pic.c b/drivers/irqchip/irq-mvebu-pic.c
index 870f9866b8da..ef3d3646ccc2 100644
--- a/drivers/irqchip/irq-mvebu-pic.c
+++ b/drivers/irqchip/irq-mvebu-pic.c
@@ -18,6 +18,7 @@
#include <linux/module.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
+#include <linux/seq_file.h>
#define PIC_CAUSE 0x0
#define PIC_MASK 0x4
@@ -29,7 +30,7 @@ struct mvebu_pic {
void __iomem *base;
u32 parent_irq;
struct irq_domain *domain;
- struct irq_chip irq_chip;
+ struct platform_device *pdev;
};
static void mvebu_pic_reset(struct mvebu_pic *pic)
@@ -66,6 +67,20 @@ static void mvebu_pic_unmask_irq(struct irq_data *d)
writel(reg, pic->base + PIC_MASK);
}
+static void mvebu_pic_print_chip(struct irq_data *d, struct seq_file *p)
+{
+ struct mvebu_pic *pic = irq_data_get_irq_chip_data(d);
+
+ seq_printf(p, dev_name(&pic->pdev->dev));
+}
+
+static const struct irq_chip mvebu_pic_chip = {
+ .irq_mask = mvebu_pic_mask_irq,
+ .irq_unmask = mvebu_pic_unmask_irq,
+ .irq_eoi = mvebu_pic_eoi_irq,
+ .irq_print_chip = mvebu_pic_print_chip,
+};
+
static int mvebu_pic_irq_map(struct irq_domain *domain, unsigned int virq,
irq_hw_number_t hwirq)
{
@@ -73,8 +88,7 @@ static int mvebu_pic_irq_map(struct irq_domain *domain, unsigned int virq,
irq_set_percpu_devid(virq);
irq_set_chip_data(virq, pic);
- irq_set_chip_and_handler(virq, &pic->irq_chip,
- handle_percpu_devid_irq);
+ irq_set_chip_and_handler(virq, &mvebu_pic_chip, handle_percpu_devid_irq);
irq_set_status_flags(virq, IRQ_LEVEL);
irq_set_probe(virq);
@@ -120,22 +134,16 @@ 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;
pic = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_pic), GFP_KERNEL);
if (!pic)
return -ENOMEM;
+ pic->pdev = pdev;
pic->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(pic->base))
return PTR_ERR(pic->base);
- irq_chip = &pic->irq_chip;
- irq_chip->name = dev_name(&pdev->dev);
- irq_chip->irq_mask = mvebu_pic_mask_irq;
- irq_chip->irq_unmask = mvebu_pic_unmask_irq;
- irq_chip->irq_eoi = mvebu_pic_eoi_irq;
-
pic->parent_irq = irq_of_parse_and_map(node, 0);
if (pic->parent_irq <= 0) {
dev_err(&pdev->dev, "Failed to parse parent interrupt\n");
diff --git a/drivers/irqchip/irq-nvic.c b/drivers/irqchip/irq-nvic.c
index ba4759b3e269..94230306e0ee 100644
--- a/drivers/irqchip/irq-nvic.c
+++ b/drivers/irqchip/irq-nvic.c
@@ -107,6 +107,7 @@ static int __init nvic_of_init(struct device_node *node,
if (!nvic_irq_domain) {
pr_warn("Failed to allocate irq domain\n");
+ iounmap(nvic_base);
return -ENOMEM;
}
@@ -116,6 +117,7 @@ static int __init nvic_of_init(struct device_node *node,
if (ret) {
pr_warn("Failed to allocate irq chips\n");
irq_domain_remove(nvic_irq_domain);
+ iounmap(nvic_base);
return ret;
}
diff --git a/drivers/irqchip/irq-qcom-mpm.c b/drivers/irqchip/irq-qcom-mpm.c
new file mode 100644
index 000000000000..eea5a753618c
--- /dev/null
+++ b/drivers/irqchip/irq-qcom-mpm.c
@@ -0,0 +1,461 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2021, Linaro Limited
+ * Copyright (c) 2010-2020, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irqchip.h>
+#include <linux/irqdomain.h>
+#include <linux/mailbox_client.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/slab.h>
+#include <linux/soc/qcom/irq.h>
+#include <linux/spinlock.h>
+
+/*
+ * This is the driver for Qualcomm MPM (MSM Power Manager) interrupt controller,
+ * which is commonly found on Qualcomm SoCs built on the RPM architecture.
+ * Sitting in always-on domain, MPM monitors the wakeup interrupts when SoC is
+ * asleep, and wakes up the AP when one of those interrupts occurs. This driver
+ * doesn't directly access physical MPM registers though. Instead, the access
+ * is bridged via a piece of internal memory (SRAM) that is accessible to both
+ * AP and RPM. This piece of memory is called 'vMPM' in the driver.
+ *
+ * When SoC is awake, the vMPM is owned by AP and the register setup by this
+ * driver all happens on vMPM. When AP is about to get power collapsed, the
+ * driver sends a mailbox notification to RPM, which will take over the vMPM
+ * ownership and dump vMPM into physical MPM registers. On wakeup, AP is woken
+ * up by a MPM pin/interrupt, and RPM will copy STATUS registers into vMPM.
+ * Then AP start owning vMPM again.
+ *
+ * vMPM register map:
+ *
+ * 31 0
+ * +--------------------------------+
+ * | TIMER0 | 0x00
+ * +--------------------------------+
+ * | TIMER1 | 0x04
+ * +--------------------------------+
+ * | ENABLE0 | 0x08
+ * +--------------------------------+
+ * | ... | ...
+ * +--------------------------------+
+ * | ENABLEn |
+ * +--------------------------------+
+ * | FALLING_EDGE0 |
+ * +--------------------------------+
+ * | ... |
+ * +--------------------------------+
+ * | STATUSn |
+ * +--------------------------------+
+ *
+ * n = DIV_ROUND_UP(pin_cnt, 32)
+ *
+ */
+
+#define MPM_REG_ENABLE 0
+#define MPM_REG_FALLING_EDGE 1
+#define MPM_REG_RISING_EDGE 2
+#define MPM_REG_POLARITY 3
+#define MPM_REG_STATUS 4
+
+/* MPM pin map to GIC hwirq */
+struct mpm_gic_map {
+ int pin;
+ irq_hw_number_t hwirq;
+};
+
+struct qcom_mpm_priv {
+ void __iomem *base;
+ raw_spinlock_t lock;
+ struct mbox_client mbox_client;
+ struct mbox_chan *mbox_chan;
+ struct mpm_gic_map *maps;
+ unsigned int map_cnt;
+ unsigned int reg_stride;
+ struct irq_domain *domain;
+ struct generic_pm_domain genpd;
+};
+
+static u32 qcom_mpm_read(struct qcom_mpm_priv *priv, unsigned int reg,
+ unsigned int index)
+{
+ unsigned int offset = (reg * priv->reg_stride + index + 2) * 4;
+
+ return readl_relaxed(priv->base + offset);
+}
+
+static void qcom_mpm_write(struct qcom_mpm_priv *priv, unsigned int reg,
+ unsigned int index, u32 val)
+{
+ unsigned int offset = (reg * priv->reg_stride + index + 2) * 4;
+
+ writel_relaxed(val, priv->base + offset);
+
+ /* Ensure the write is completed */
+ wmb();
+}
+
+static void qcom_mpm_enable_irq(struct irq_data *d, bool en)
+{
+ struct qcom_mpm_priv *priv = d->chip_data;
+ int pin = d->hwirq;
+ unsigned int index = pin / 32;
+ unsigned int shift = pin % 32;
+ unsigned long flags, val;
+
+ raw_spin_lock_irqsave(&priv->lock, flags);
+
+ val = qcom_mpm_read(priv, MPM_REG_ENABLE, index);
+ __assign_bit(shift, &val, en);
+ qcom_mpm_write(priv, MPM_REG_ENABLE, index, val);
+
+ raw_spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static void qcom_mpm_mask(struct irq_data *d)
+{
+ qcom_mpm_enable_irq(d, false);
+
+ if (d->parent_data)
+ irq_chip_mask_parent(d);
+}
+
+static void qcom_mpm_unmask(struct irq_data *d)
+{
+ qcom_mpm_enable_irq(d, true);
+
+ if (d->parent_data)
+ irq_chip_unmask_parent(d);
+}
+
+static void mpm_set_type(struct qcom_mpm_priv *priv, bool set, unsigned int reg,
+ unsigned int index, unsigned int shift)
+{
+ unsigned long flags, val;
+
+ raw_spin_lock_irqsave(&priv->lock, flags);
+
+ val = qcom_mpm_read(priv, reg, index);
+ __assign_bit(shift, &val, set);
+ qcom_mpm_write(priv, reg, index, val);
+
+ raw_spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int qcom_mpm_set_type(struct irq_data *d, unsigned int type)
+{
+ struct qcom_mpm_priv *priv = d->chip_data;
+ int pin = d->hwirq;
+ unsigned int index = pin / 32;
+ unsigned int shift = pin % 32;
+
+ if (type & IRQ_TYPE_EDGE_RISING)
+ mpm_set_type(priv, true, MPM_REG_RISING_EDGE, index, shift);
+ else
+ mpm_set_type(priv, false, MPM_REG_RISING_EDGE, index, shift);
+
+ if (type & IRQ_TYPE_EDGE_FALLING)
+ mpm_set_type(priv, true, MPM_REG_FALLING_EDGE, index, shift);
+ else
+ mpm_set_type(priv, false, MPM_REG_FALLING_EDGE, index, shift);
+
+ if (type & IRQ_TYPE_LEVEL_HIGH)
+ mpm_set_type(priv, true, MPM_REG_POLARITY, index, shift);
+ else
+ mpm_set_type(priv, false, MPM_REG_POLARITY, index, shift);
+
+ if (!d->parent_data)
+ return 0;
+
+ if (type & IRQ_TYPE_EDGE_BOTH)
+ type = IRQ_TYPE_EDGE_RISING;
+
+ if (type & IRQ_TYPE_LEVEL_MASK)
+ type = IRQ_TYPE_LEVEL_HIGH;
+
+ return irq_chip_set_type_parent(d, type);
+}
+
+static struct irq_chip qcom_mpm_chip = {
+ .name = "mpm",
+ .irq_eoi = irq_chip_eoi_parent,
+ .irq_mask = qcom_mpm_mask,
+ .irq_unmask = qcom_mpm_unmask,
+ .irq_retrigger = irq_chip_retrigger_hierarchy,
+ .irq_set_type = qcom_mpm_set_type,
+ .irq_set_affinity = irq_chip_set_affinity_parent,
+ .flags = IRQCHIP_MASK_ON_SUSPEND |
+ IRQCHIP_SKIP_SET_WAKE,
+};
+
+static struct mpm_gic_map *get_mpm_gic_map(struct qcom_mpm_priv *priv, int pin)
+{
+ struct mpm_gic_map *maps = priv->maps;
+ int i;
+
+ for (i = 0; i < priv->map_cnt; i++) {
+ if (maps[i].pin == pin)
+ return &maps[i];
+ }
+
+ return NULL;
+}
+
+static int qcom_mpm_alloc(struct irq_domain *domain, unsigned int virq,
+ unsigned int nr_irqs, void *data)
+{
+ struct qcom_mpm_priv *priv = domain->host_data;
+ struct irq_fwspec *fwspec = data;
+ struct irq_fwspec parent_fwspec;
+ struct mpm_gic_map *map;
+ irq_hw_number_t pin;
+ unsigned int type;
+ int ret;
+
+ ret = irq_domain_translate_twocell(domain, fwspec, &pin, &type);
+ if (ret)
+ return ret;
+
+ ret = irq_domain_set_hwirq_and_chip(domain, virq, pin,
+ &qcom_mpm_chip, priv);
+ if (ret)
+ return ret;
+
+ map = get_mpm_gic_map(priv, pin);
+ if (map == NULL)
+ return irq_domain_disconnect_hierarchy(domain->parent, virq);
+
+ if (type & IRQ_TYPE_EDGE_BOTH)
+ type = IRQ_TYPE_EDGE_RISING;
+
+ if (type & IRQ_TYPE_LEVEL_MASK)
+ type = IRQ_TYPE_LEVEL_HIGH;
+
+ parent_fwspec.fwnode = domain->parent->fwnode;
+ parent_fwspec.param_count = 3;
+ parent_fwspec.param[0] = 0;
+ parent_fwspec.param[1] = map->hwirq;
+ parent_fwspec.param[2] = type;
+
+ return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs,
+ &parent_fwspec);
+}
+
+static const struct irq_domain_ops qcom_mpm_ops = {
+ .alloc = qcom_mpm_alloc,
+ .free = irq_domain_free_irqs_common,
+ .translate = irq_domain_translate_twocell,
+};
+
+/* Triggered by RPM when system resumes from deep sleep */
+static irqreturn_t qcom_mpm_handler(int irq, void *dev_id)
+{
+ struct qcom_mpm_priv *priv = dev_id;
+ unsigned long enable, pending;
+ irqreturn_t ret = IRQ_NONE;
+ unsigned long flags;
+ int i, j;
+
+ for (i = 0; i < priv->reg_stride; i++) {
+ raw_spin_lock_irqsave(&priv->lock, flags);
+ enable = qcom_mpm_read(priv, MPM_REG_ENABLE, i);
+ pending = qcom_mpm_read(priv, MPM_REG_STATUS, i);
+ pending &= enable;
+ raw_spin_unlock_irqrestore(&priv->lock, flags);
+
+ for_each_set_bit(j, &pending, 32) {
+ unsigned int pin = 32 * i + j;
+ struct irq_desc *desc = irq_resolve_mapping(priv->domain, pin);
+ struct irq_data *d = &desc->irq_data;
+
+ if (!irqd_is_level_type(d))
+ irq_set_irqchip_state(d->irq,
+ IRQCHIP_STATE_PENDING, true);
+ ret = IRQ_HANDLED;
+ }
+ }
+
+ return ret;
+}
+
+static int mpm_pd_power_off(struct generic_pm_domain *genpd)
+{
+ struct qcom_mpm_priv *priv = container_of(genpd, struct qcom_mpm_priv,
+ genpd);
+ int i, ret;
+
+ for (i = 0; i < priv->reg_stride; i++)
+ qcom_mpm_write(priv, MPM_REG_STATUS, i, 0);
+
+ /* Notify RPM to write vMPM into HW */
+ ret = mbox_send_message(priv->mbox_chan, NULL);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static bool gic_hwirq_is_mapped(struct mpm_gic_map *maps, int cnt, u32 hwirq)
+{
+ int i;
+
+ for (i = 0; i < cnt; i++)
+ if (maps[i].hwirq == hwirq)
+ return true;
+
+ return false;
+}
+
+static int qcom_mpm_init(struct device_node *np, struct device_node *parent)
+{
+ struct platform_device *pdev = of_find_device_by_node(np);
+ struct device *dev = &pdev->dev;
+ struct irq_domain *parent_domain;
+ struct generic_pm_domain *genpd;
+ struct qcom_mpm_priv *priv;
+ unsigned int pin_cnt;
+ int i, irq;
+ int ret;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ ret = of_property_read_u32(np, "qcom,mpm-pin-count", &pin_cnt);
+ if (ret) {
+ dev_err(dev, "failed to read qcom,mpm-pin-count: %d\n", ret);
+ return ret;
+ }
+
+ priv->reg_stride = DIV_ROUND_UP(pin_cnt, 32);
+
+ ret = of_property_count_u32_elems(np, "qcom,mpm-pin-map");
+ if (ret < 0) {
+ dev_err(dev, "failed to read qcom,mpm-pin-map: %d\n", ret);
+ return ret;
+ }
+
+ if (ret % 2) {
+ dev_err(dev, "invalid qcom,mpm-pin-map\n");
+ return -EINVAL;
+ }
+
+ priv->map_cnt = ret / 2;
+ priv->maps = devm_kcalloc(dev, priv->map_cnt, sizeof(*priv->maps),
+ GFP_KERNEL);
+ if (!priv->maps)
+ return -ENOMEM;
+
+ for (i = 0; i < priv->map_cnt; i++) {
+ u32 pin, hwirq;
+
+ of_property_read_u32_index(np, "qcom,mpm-pin-map", i * 2, &pin);
+ of_property_read_u32_index(np, "qcom,mpm-pin-map", i * 2 + 1, &hwirq);
+
+ if (gic_hwirq_is_mapped(priv->maps, i, hwirq)) {
+ dev_warn(dev, "failed to map pin %d as GIC hwirq %d is already mapped\n",
+ pin, hwirq);
+ continue;
+ }
+
+ priv->maps[i].pin = pin;
+ priv->maps[i].hwirq = hwirq;
+ }
+
+ raw_spin_lock_init(&priv->lock);
+
+ priv->base = devm_platform_ioremap_resource(pdev, 0);
+ if (!priv->base)
+ return PTR_ERR(priv->base);
+
+ for (i = 0; i < priv->reg_stride; i++) {
+ qcom_mpm_write(priv, MPM_REG_ENABLE, i, 0);
+ qcom_mpm_write(priv, MPM_REG_FALLING_EDGE, i, 0);
+ qcom_mpm_write(priv, MPM_REG_RISING_EDGE, i, 0);
+ qcom_mpm_write(priv, MPM_REG_POLARITY, i, 0);
+ qcom_mpm_write(priv, MPM_REG_STATUS, i, 0);
+ }
+
+ irq = platform_get_irq(pdev, 0);
+ if (irq < 0)
+ return irq;
+
+ genpd = &priv->genpd;
+ genpd->flags = GENPD_FLAG_IRQ_SAFE;
+ genpd->power_off = mpm_pd_power_off;
+
+ genpd->name = devm_kasprintf(dev, GFP_KERNEL, "%s", dev_name(dev));
+ if (!genpd->name)
+ return -ENOMEM;
+
+ ret = pm_genpd_init(genpd, NULL, false);
+ if (ret) {
+ dev_err(dev, "failed to init genpd: %d\n", ret);
+ return ret;
+ }
+
+ ret = of_genpd_add_provider_simple(np, genpd);
+ if (ret) {
+ dev_err(dev, "failed to add genpd provider: %d\n", ret);
+ goto remove_genpd;
+ }
+
+ priv->mbox_client.dev = dev;
+ priv->mbox_chan = mbox_request_channel(&priv->mbox_client, 0);
+ if (IS_ERR(priv->mbox_chan)) {
+ ret = PTR_ERR(priv->mbox_chan);
+ dev_err(dev, "failed to acquire IPC channel: %d\n", ret);
+ return ret;
+ }
+
+ parent_domain = irq_find_host(parent);
+ if (!parent_domain) {
+ dev_err(dev, "failed to find MPM parent domain\n");
+ ret = -ENXIO;
+ goto free_mbox;
+ }
+
+ priv->domain = irq_domain_create_hierarchy(parent_domain,
+ IRQ_DOMAIN_FLAG_QCOM_MPM_WAKEUP, pin_cnt,
+ of_node_to_fwnode(np), &qcom_mpm_ops, priv);
+ if (!priv->domain) {
+ dev_err(dev, "failed to create MPM domain\n");
+ ret = -ENOMEM;
+ goto free_mbox;
+ }
+
+ irq_domain_update_bus_token(priv->domain, DOMAIN_BUS_WAKEUP);
+
+ ret = devm_request_irq(dev, irq, qcom_mpm_handler, IRQF_NO_SUSPEND,
+ "qcom_mpm", priv);
+ if (ret) {
+ dev_err(dev, "failed to request irq: %d\n", ret);
+ goto remove_domain;
+ }
+
+ return 0;
+
+remove_domain:
+ irq_domain_remove(priv->domain);
+free_mbox:
+ mbox_free_channel(priv->mbox_chan);
+remove_genpd:
+ pm_genpd_remove(genpd);
+ return ret;
+}
+
+IRQCHIP_PLATFORM_DRIVER_BEGIN(qcom_mpm)
+IRQCHIP_MATCH("qcom,mpm", qcom_mpm_init)
+IRQCHIP_PLATFORM_DRIVER_END(qcom_mpm)
+MODULE_DESCRIPTION("Qualcomm Technologies, Inc. MSM Power Manager");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index 37f9a4499fdb..e83756aca14e 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -508,7 +508,6 @@ static int intc_irqpin_probe(struct platform_device *pdev)
irq_chip = &p->irq_chip;
irq_chip->name = "intc-irqpin";
- irq_chip->parent_device = dev;
irq_chip->irq_mask = disable_fn;
irq_chip->irq_unmask = enable_fn;
irq_chip->irq_set_type = intc_irqpin_irq_set_type;
@@ -523,6 +522,8 @@ static int intc_irqpin_probe(struct platform_device *pdev)
goto err0;
}
+ irq_domain_set_pm_device(p->irq_domain, dev);
+
if (p->shared_irqs) {
/* request one shared interrupt */
if (devm_request_irq(dev, p->irq[0].requested_irq,
diff --git a/drivers/irqchip/irq-renesas-irqc.c b/drivers/irqchip/irq-renesas-irqc.c
index 909325f88239..1ee5e9941f67 100644
--- a/drivers/irqchip/irq-renesas-irqc.c
+++ b/drivers/irqchip/irq-renesas-irqc.c
@@ -188,13 +188,14 @@ static int irqc_probe(struct platform_device *pdev)
p->gc->reg_base = p->cpu_int_base;
p->gc->chip_types[0].regs.enable = IRQC_EN_SET;
p->gc->chip_types[0].regs.disable = IRQC_EN_STS;
- p->gc->chip_types[0].chip.parent_device = dev;
p->gc->chip_types[0].chip.irq_mask = irq_gc_mask_disable_reg;
p->gc->chip_types[0].chip.irq_unmask = irq_gc_unmask_enable_reg;
p->gc->chip_types[0].chip.irq_set_type = irqc_irq_set_type;
p->gc->chip_types[0].chip.irq_set_wake = irqc_irq_set_wake;
p->gc->chip_types[0].chip.flags = IRQCHIP_MASK_ON_SUSPEND;
+ irq_domain_set_pm_device(p->irq_domain, dev);
+
/* request interrupts one by one */
for (k = 0; k < p->number_of_irqs; k++) {
if (devm_request_irq(dev, p->irq[k].requested_irq,
diff --git a/drivers/irqchip/irq-sifive-plic.c b/drivers/irqchip/irq-sifive-plic.c
index 09cc98266d30..bb87e4c3b88e 100644
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -44,8 +44,8 @@
* Each hart context has a vector of interrupt enable bits associated with it.
* There's one bit for each interrupt source.
*/
-#define ENABLE_BASE 0x2000
-#define ENABLE_PER_HART 0x80
+#define CONTEXT_ENABLE_BASE 0x2000
+#define CONTEXT_ENABLE_SIZE 0x80
/*
* Each hart context has a set of control registers associated with it. Right
@@ -53,7 +53,7 @@
* take an interrupt, and a register to claim interrupts.
*/
#define CONTEXT_BASE 0x200000
-#define CONTEXT_PER_HART 0x1000
+#define CONTEXT_SIZE 0x1000
#define CONTEXT_THRESHOLD 0x00
#define CONTEXT_CLAIM 0x04
@@ -81,17 +81,21 @@ static int plic_parent_irq __ro_after_init;
static bool plic_cpuhp_setup_done __ro_after_init;
static DEFINE_PER_CPU(struct plic_handler, plic_handlers);
-static inline void plic_toggle(struct plic_handler *handler,
- int hwirq, int enable)
+static void __plic_toggle(void __iomem *enable_base, int hwirq, int enable)
{
- u32 __iomem *reg = handler->enable_base + (hwirq / 32) * sizeof(u32);
+ u32 __iomem *reg = enable_base + (hwirq / 32) * sizeof(u32);
u32 hwirq_mask = 1 << (hwirq % 32);
- raw_spin_lock(&handler->enable_lock);
if (enable)
writel(readl(reg) | hwirq_mask, reg);
else
writel(readl(reg) & ~hwirq_mask, reg);
+}
+
+static void plic_toggle(struct plic_handler *handler, int hwirq, int enable)
+{
+ raw_spin_lock(&handler->enable_lock);
+ __plic_toggle(handler->enable_base, hwirq, enable);
raw_spin_unlock(&handler->enable_lock);
}
@@ -324,8 +328,18 @@ static int __init plic_init(struct device_node *node,
* Skip contexts other than external interrupts for our
* privilege level.
*/
- if (parent.args[0] != RV_IRQ_EXT)
+ if (parent.args[0] != RV_IRQ_EXT) {
+ /* Disable S-mode enable bits if running in M-mode. */
+ if (IS_ENABLED(CONFIG_RISCV_M_MODE)) {
+ void __iomem *enable_base = priv->regs +
+ CONTEXT_ENABLE_BASE +
+ i * CONTEXT_ENABLE_SIZE;
+
+ for (hwirq = 1; hwirq <= nr_irqs; hwirq++)
+ __plic_toggle(enable_base, hwirq, 0);
+ }
continue;
+ }
hartid = riscv_of_parent_hartid(parent.np);
if (hartid < 0) {
@@ -361,11 +375,11 @@ static int __init plic_init(struct device_node *node,
cpumask_set_cpu(cpu, &priv->lmask);
handler->present = true;
- handler->hart_base =
- priv->regs + CONTEXT_BASE + i * CONTEXT_PER_HART;
+ handler->hart_base = priv->regs + CONTEXT_BASE +
+ i * CONTEXT_SIZE;
raw_spin_lock_init(&handler->enable_lock);
- handler->enable_base =
- priv->regs + ENABLE_BASE + i * ENABLE_PER_HART;
+ handler->enable_base = priv->regs + CONTEXT_ENABLE_BASE +
+ i * CONTEXT_ENABLE_SIZE;
handler->priv = priv;
done:
for (hwirq = 1; hwirq <= nr_irqs; hwirq++)
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index b7cb2da71888..9d18f47040eb 100644
--- a/drivers/irqchip/irq-stm32-exti.c
+++ b/drivers/irqchip/irq-stm32-exti.c
@@ -214,6 +214,48 @@ static const struct stm32_desc_irq stm32mp1_desc_irq[] = {
{ .exti = 73, .irq_parent = 129, .chip = &stm32_exti_h_chip },
};
+static const struct stm32_desc_irq stm32mp13_desc_irq[] = {
+ { .exti = 0, .irq_parent = 6, .chip = &stm32_exti_h_chip },
+ { .exti = 1, .irq_parent = 7, .chip = &stm32_exti_h_chip },
+ { .exti = 2, .irq_parent = 8, .chip = &stm32_exti_h_chip },
+ { .exti = 3, .irq_parent = 9, .chip = &stm32_exti_h_chip },
+ { .exti = 4, .irq_parent = 10, .chip = &stm32_exti_h_chip },
+ { .exti = 5, .irq_parent = 24, .chip = &stm32_exti_h_chip },
+ { .exti = 6, .irq_parent = 65, .chip = &stm32_exti_h_chip },
+ { .exti = 7, .irq_parent = 66, .chip = &stm32_exti_h_chip },
+ { .exti = 8, .irq_parent = 67, .chip = &stm32_exti_h_chip },
+ { .exti = 9, .irq_parent = 68, .chip = &stm32_exti_h_chip },
+ { .exti = 10, .irq_parent = 41, .chip = &stm32_exti_h_chip },
+ { .exti = 11, .irq_parent = 43, .chip = &stm32_exti_h_chip },
+ { .exti = 12, .irq_parent = 77, .chip = &stm32_exti_h_chip },
+ { .exti = 13, .irq_parent = 78, .chip = &stm32_exti_h_chip },
+ { .exti = 14, .irq_parent = 106, .chip = &stm32_exti_h_chip },
+ { .exti = 15, .irq_parent = 109, .chip = &stm32_exti_h_chip },
+ { .exti = 16, .irq_parent = 1, .chip = &stm32_exti_h_chip },
+ { .exti = 19, .irq_parent = 3, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 21, .irq_parent = 32, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 22, .irq_parent = 34, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 23, .irq_parent = 73, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 24, .irq_parent = 93, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 25, .irq_parent = 114, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 26, .irq_parent = 38, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 27, .irq_parent = 39, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 28, .irq_parent = 40, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 29, .irq_parent = 72, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 30, .irq_parent = 53, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 31, .irq_parent = 54, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 32, .irq_parent = 83, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 33, .irq_parent = 84, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 44, .irq_parent = 96, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 47, .irq_parent = 92, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 48, .irq_parent = 116, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 50, .irq_parent = 117, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 52, .irq_parent = 118, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 53, .irq_parent = 119, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 68, .irq_parent = 63, .chip = &stm32_exti_h_chip_direct },
+ { .exti = 70, .irq_parent = 98, .chip = &stm32_exti_h_chip_direct },
+};
+
static const struct stm32_exti_drv_data stm32mp1_drv_data = {
.exti_banks = stm32mp1_exti_banks,
.bank_nr = ARRAY_SIZE(stm32mp1_exti_banks),
@@ -221,6 +263,13 @@ static const struct stm32_exti_drv_data stm32mp1_drv_data = {
.irq_nr = ARRAY_SIZE(stm32mp1_desc_irq),
};
+static const struct stm32_exti_drv_data stm32mp13_drv_data = {
+ .exti_banks = stm32mp1_exti_banks,
+ .bank_nr = ARRAY_SIZE(stm32mp1_exti_banks),
+ .desc_irqs = stm32mp13_desc_irq,
+ .irq_nr = ARRAY_SIZE(stm32mp13_desc_irq),
+};
+
static const struct
stm32_desc_irq *stm32_exti_get_desc(const struct stm32_exti_drv_data *drv_data,
irq_hw_number_t hwirq)
@@ -922,6 +971,7 @@ static int stm32_exti_probe(struct platform_device *pdev)
/* platform driver only for MP1 */
static const struct of_device_id stm32_exti_ids[] = {
{ .compatible = "st,stm32mp1-exti", .data = &stm32mp1_drv_data},
+ { .compatible = "st,stm32mp13-exti", .data = &stm32mp13_drv_data},
{},
};
MODULE_DEVICE_TABLE(of, stm32_exti_ids);
diff --git a/drivers/irqchip/irq-ts4800.c b/drivers/irqchip/irq-ts4800.c
index f032db23b30f..b2d61d4f6fe6 100644
--- a/drivers/irqchip/irq-ts4800.c
+++ b/drivers/irqchip/irq-ts4800.c
@@ -19,14 +19,15 @@
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
+#include <linux/seq_file.h>
#define IRQ_MASK 0x4
#define IRQ_STATUS 0x8
struct ts4800_irq_data {
void __iomem *base;
+ struct platform_device *pdev;
struct irq_domain *domain;
- struct irq_chip irq_chip;
};
static void ts4800_irq_mask(struct irq_data *d)
@@ -47,12 +48,25 @@ static void ts4800_irq_unmask(struct irq_data *d)
writew(reg & ~mask, data->base + IRQ_MASK);
}
+static void ts4800_irq_print_chip(struct irq_data *d, struct seq_file *p)
+{
+ struct ts4800_irq_data *data = irq_data_get_irq_chip_data(d);
+
+ seq_printf(p, "%s", dev_name(&data->pdev->dev));
+}
+
+static const struct irq_chip ts4800_chip = {
+ .irq_mask = ts4800_irq_mask,
+ .irq_unmask = ts4800_irq_unmask,
+ .irq_print_chip = ts4800_irq_print_chip,
+};
+
static int ts4800_irqdomain_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq)
{
struct ts4800_irq_data *data = d->host_data;
- irq_set_chip_and_handler(irq, &data->irq_chip, handle_simple_irq);
+ irq_set_chip_and_handler(irq, &ts4800_chip, handle_simple_irq);
irq_set_chip_data(irq, data);
irq_set_noprobe(irq);
@@ -92,13 +106,13 @@ 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;
int parent_irq;
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
+ data->pdev = pdev;
data->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(data->base))
return PTR_ERR(data->base);
@@ -111,11 +125,6 @@ static int ts4800_ic_probe(struct platform_device *pdev)
return -EINVAL;
}
- irq_chip = &data->irq_chip;
- irq_chip->name = dev_name(&pdev->dev);
- irq_chip->irq_mask = ts4800_irq_mask;
- irq_chip->irq_unmask = ts4800_irq_unmask;
-
data->domain = irq_domain_add_linear(node, 8, &ts4800_ic_ops, data);
if (!data->domain) {
dev_err(&pdev->dev, "cannot add IRQ domain\n");
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index f2757b6aecc8..ba543ed9c154 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -7,12 +7,12 @@
#include <linux/io.h>
#include <linux/irqchip.h>
#include <linux/irqchip/chained_irq.h>
-#include <linux/irqchip/versatile-fpga.h>
#include <linux/irqdomain.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
+#include <linux/seq_file.h>
#include <asm/exception.h>
#include <asm/mach/irq.h>
@@ -34,14 +34,12 @@
/**
* struct fpga_irq_data - irq data container for the FPGA IRQ controller
* @base: memory offset in virtual memory
- * @chip: chip container for this instance
* @domain: IRQ domain for this instance
* @valid: mask for valid IRQs on this controller
* @used_irqs: number of active IRQs on this controller
*/
struct fpga_irq_data {
void __iomem *base;
- struct irq_chip chip;
u32 valid;
struct irq_domain *domain;
u8 used_irqs;
@@ -67,6 +65,20 @@ static void fpga_irq_unmask(struct irq_data *d)
writel(mask, f->base + IRQ_ENABLE_SET);
}
+static void fpga_irq_print_chip(struct irq_data *d, struct seq_file *p)
+{
+ struct fpga_irq_data *f = irq_data_get_irq_chip_data(d);
+
+ seq_printf(p, irq_domain_get_of_node(f->domain)->name);
+}
+
+static const struct irq_chip fpga_chip = {
+ .irq_ack = fpga_irq_mask,
+ .irq_mask = fpga_irq_mask,
+ .irq_unmask = fpga_irq_unmask,
+ .irq_print_chip = fpga_irq_print_chip,
+};
+
static void fpga_irq_handle(struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
@@ -116,7 +128,7 @@ static int handle_one_fpga(struct fpga_irq_data *f, struct pt_regs *regs)
* Keep iterating over all registered FPGA IRQ controllers until there are
* no pending interrupts.
*/
-asmlinkage void __exception_irq_entry fpga_handle_irq(struct pt_regs *regs)
+static asmlinkage void __exception_irq_entry fpga_handle_irq(struct pt_regs *regs)
{
int i, handled;
@@ -135,8 +147,7 @@ static int fpga_irqdomain_map(struct irq_domain *d, unsigned int irq,
if (!(f->valid & BIT(hwirq)))
return -EPERM;
irq_set_chip_data(irq, f);
- irq_set_chip_and_handler(irq, &f->chip,
- handle_level_irq);
+ irq_set_chip_and_handler(irq, &fpga_chip, handle_level_irq);
irq_set_probe(irq);
return 0;
}
@@ -146,8 +157,8 @@ static const struct irq_domain_ops fpga_irqdomain_ops = {
.xlate = irq_domain_xlate_onetwocell,
};
-void __init fpga_irq_init(void __iomem *base, const char *name, int irq_start,
- int parent_irq, u32 valid, struct device_node *node)
+static void __init fpga_irq_init(void __iomem *base, int parent_irq,
+ u32 valid, struct device_node *node)
{
struct fpga_irq_data *f;
int i;
@@ -158,10 +169,6 @@ void __init fpga_irq_init(void __iomem *base, const char *name, int irq_start,
}
f = &fpga_irq_devices[fpga_irq_id];
f->base = base;
- f->chip.name = name;
- f->chip.irq_ack = fpga_irq_mask;
- f->chip.irq_mask = fpga_irq_mask;
- f->chip.irq_unmask = fpga_irq_unmask;
f->valid = valid;
if (parent_irq != -1) {
@@ -169,20 +176,19 @@ void __init fpga_irq_init(void __iomem *base, const char *name, int irq_start,
f);
}
- /* This will also allocate irq descriptors */
- f->domain = irq_domain_add_simple(node, fls(valid), irq_start,
+ f->domain = irq_domain_add_linear(node, fls(valid),
&fpga_irqdomain_ops, f);
/* This will allocate all valid descriptors in the linear case */
for (i = 0; i < fls(valid); i++)
if (valid & BIT(i)) {
- if (!irq_start)
- irq_create_mapping(f->domain, i);
+ /* Is this still required? */
+ irq_create_mapping(f->domain, i);
f->used_irqs++;
}
pr_info("FPGA IRQ chip %d \"%s\" @ %p, %u irqs",
- fpga_irq_id, name, base, f->used_irqs);
+ fpga_irq_id, node->name, base, f->used_irqs);
if (parent_irq != -1)
pr_cont(", parent IRQ: %d\n", parent_irq);
else
@@ -192,8 +198,8 @@ void __init fpga_irq_init(void __iomem *base, const char *name, int irq_start,
}
#ifdef CONFIG_OF
-int __init fpga_irq_of_init(struct device_node *node,
- struct device_node *parent)
+static int __init fpga_irq_of_init(struct device_node *node,
+ struct device_node *parent)
{
void __iomem *base;
u32 clear_mask;
@@ -222,7 +228,7 @@ int __init fpga_irq_of_init(struct device_node *node,
parent_irq = -1;
}
- fpga_irq_init(base, node->name, 0, parent_irq, valid_mask, node);
+ fpga_irq_init(base, parent_irq, valid_mask, node);
/*
* On Versatile AB/PB, some secondary interrupts have a direct
diff --git a/drivers/irqchip/irq-xilinx-intc.c b/drivers/irqchip/irq-xilinx-intc.c
index 356a59755d63..238d3d344949 100644
--- a/drivers/irqchip/irq-xilinx-intc.c
+++ b/drivers/irqchip/irq-xilinx-intc.c
@@ -32,6 +32,8 @@
#define MER_ME (1<<0)
#define MER_HIE (1<<1)
+#define SPURIOUS_IRQ (-1U)
+
static DEFINE_STATIC_KEY_FALSE(xintc_is_be);
struct xintc_irq_chip {
@@ -110,20 +112,6 @@ static struct irq_chip intc_dev = {
.irq_mask_ack = intc_mask_ack,
};
-unsigned int xintc_get_irq(void)
-{
- unsigned int irq = -1;
- u32 hwirq;
-
- hwirq = xintc_read(primary_intc, IVR);
- if (hwirq != -1U)
- irq = irq_find_mapping(primary_intc->root_domain, hwirq);
-
- pr_debug("irq-xilinx: hwirq=%d, irq=%d\n", hwirq, irq);
-
- return irq;
-}
-
static int xintc_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw)
{
struct xintc_irq_chip *irqc = d->host_data;
@@ -164,6 +152,19 @@ static void xil_intc_irq_handler(struct irq_desc *desc)
chained_irq_exit(chip, desc);
}
+static void xil_intc_handle_irq(struct pt_regs *regs)
+{
+ u32 hwirq;
+
+ do {
+ hwirq = xintc_read(primary_intc, IVR);
+ if (unlikely(hwirq == SPURIOUS_IRQ))
+ break;
+
+ generic_handle_domain_irq(primary_intc->root_domain, hwirq);
+ } while (true);
+}
+
static int __init xilinx_intc_of_init(struct device_node *intc,
struct device_node *parent)
{
@@ -233,6 +234,7 @@ static int __init xilinx_intc_of_init(struct device_node *intc,
} else {
primary_intc = irqc;
irq_set_default_host(primary_intc->root_domain);
+ set_handle_irq(xil_intc_handle_irq);
}
return 0;
diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c
index 173e6520e06e..d96916cf6a41 100644
--- a/drivers/irqchip/qcom-pdc.c
+++ b/drivers/irqchip/qcom-pdc.c
@@ -21,23 +21,19 @@
#include <linux/slab.h>
#include <linux/types.h>
-#define PDC_MAX_IRQS 168
#define PDC_MAX_GPIO_IRQS 256
-#define CLEAR_INTR(reg, intr) (reg & ~(1 << intr))
-#define ENABLE_INTR(reg, intr) (reg | (1 << intr))
-
#define IRQ_ENABLE_BANK 0x10
#define IRQ_i_CFG 0x110
-#define PDC_NO_PARENT_IRQ ~0UL
-
struct pdc_pin_region {
u32 pin_base;
u32 parent_base;
u32 cnt;
};
+#define pin_to_hwirq(r, p) ((r)->parent_base + (p) - (r)->pin_base)
+
static DEFINE_RAW_SPINLOCK(pdc_lock);
static void __iomem *pdc_base;
static struct pdc_pin_region *pdc_region;
@@ -56,17 +52,18 @@ static u32 pdc_reg_read(int reg, u32 i)
static void pdc_enable_intr(struct irq_data *d, bool on)
{
int pin_out = d->hwirq;
+ unsigned long enable;
+ unsigned long flags;
u32 index, mask;
- u32 enable;
index = pin_out / 32;
mask = pin_out % 32;
- raw_spin_lock(&pdc_lock);
+ raw_spin_lock_irqsave(&pdc_lock, flags);
enable = pdc_reg_read(IRQ_ENABLE_BANK, index);
- enable = on ? ENABLE_INTR(enable, mask) : CLEAR_INTR(enable, mask);
+ __assign_bit(mask, &enable, on);
pdc_reg_write(IRQ_ENABLE_BANK, index, enable);
- raw_spin_unlock(&pdc_lock);
+ raw_spin_unlock_irqrestore(&pdc_lock, flags);
}
static void qcom_pdc_gic_disable(struct irq_data *d)
@@ -186,34 +183,17 @@ static struct irq_chip qcom_pdc_gic_chip = {
.irq_set_affinity = irq_chip_set_affinity_parent,
};
-static irq_hw_number_t get_parent_hwirq(int pin)
+static struct pdc_pin_region *get_pin_region(int pin)
{
int i;
- struct pdc_pin_region *region;
for (i = 0; i < pdc_region_cnt; i++) {
- region = &pdc_region[i];
- if (pin >= region->pin_base &&
- pin < region->pin_base + region->cnt)
- return (region->parent_base + pin - region->pin_base);
+ if (pin >= pdc_region[i].pin_base &&
+ pin < pdc_region[i].pin_base + pdc_region[i].cnt)
+ return &pdc_region[i];
}
- return PDC_NO_PARENT_IRQ;
-}
-
-static int qcom_pdc_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
- unsigned long *hwirq, unsigned int *type)
-{
- if (is_of_node(fwspec->fwnode)) {
- if (fwspec->param_count != 2)
- return -EINVAL;
-
- *hwirq = fwspec->param[0];
- *type = fwspec->param[1] & IRQ_TYPE_SENSE_MASK;
- return 0;
- }
-
- return -EINVAL;
+ return NULL;
}
static int qcom_pdc_alloc(struct irq_domain *domain, unsigned int virq,
@@ -221,55 +201,12 @@ static int qcom_pdc_alloc(struct irq_domain *domain, unsigned int virq,
{
struct irq_fwspec *fwspec = data;
struct irq_fwspec parent_fwspec;
- irq_hw_number_t hwirq, parent_hwirq;
- unsigned int type;
- int ret;
-
- ret = qcom_pdc_translate(domain, fwspec, &hwirq, &type);
- if (ret)
- return ret;
-
- ret = irq_domain_set_hwirq_and_chip(domain, virq, hwirq,
- &qcom_pdc_gic_chip, NULL);
- if (ret)
- return ret;
-
- parent_hwirq = get_parent_hwirq(hwirq);
- if (parent_hwirq == PDC_NO_PARENT_IRQ)
- return irq_domain_disconnect_hierarchy(domain->parent, virq);
-
- if (type & IRQ_TYPE_EDGE_BOTH)
- type = IRQ_TYPE_EDGE_RISING;
-
- if (type & IRQ_TYPE_LEVEL_MASK)
- type = IRQ_TYPE_LEVEL_HIGH;
-
- parent_fwspec.fwnode = domain->parent->fwnode;
- parent_fwspec.param_count = 3;
- parent_fwspec.param[0] = 0;
- parent_fwspec.param[1] = parent_hwirq;
- parent_fwspec.param[2] = type;
-
- return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs,
- &parent_fwspec);
-}
-
-static const struct irq_domain_ops qcom_pdc_ops = {
- .translate = qcom_pdc_translate,
- .alloc = qcom_pdc_alloc,
- .free = irq_domain_free_irqs_common,
-};
-
-static int qcom_pdc_gpio_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, parent_hwirq;
+ struct pdc_pin_region *region;
+ irq_hw_number_t hwirq;
unsigned int type;
int ret;
- ret = qcom_pdc_translate(domain, fwspec, &hwirq, &type);
+ ret = irq_domain_translate_twocell(domain, fwspec, &hwirq, &type);
if (ret)
return ret;
@@ -281,8 +218,8 @@ static int qcom_pdc_gpio_alloc(struct irq_domain *domain, unsigned int virq,
if (ret)
return ret;
- parent_hwirq = get_parent_hwirq(hwirq);
- if (parent_hwirq == PDC_NO_PARENT_IRQ)
+ region = get_pin_region(hwirq);
+ if (!region)
return irq_domain_disconnect_hierarchy(domain->parent, virq);
if (type & IRQ_TYPE_EDGE_BOTH)
@@ -294,23 +231,16 @@ static int qcom_pdc_gpio_alloc(struct irq_domain *domain, unsigned int virq,
parent_fwspec.fwnode = domain->parent->fwnode;
parent_fwspec.param_count = 3;
parent_fwspec.param[0] = 0;
- parent_fwspec.param[1] = parent_hwirq;
+ parent_fwspec.param[1] = pin_to_hwirq(region, hwirq);
parent_fwspec.param[2] = type;
return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs,
&parent_fwspec);
}
-static int qcom_pdc_gpio_domain_select(struct irq_domain *d,
- struct irq_fwspec *fwspec,
- enum irq_domain_bus_token bus_token)
-{
- return bus_token == DOMAIN_BUS_WAKEUP;
-}
-
-static const struct irq_domain_ops qcom_pdc_gpio_ops = {
- .select = qcom_pdc_gpio_domain_select,
- .alloc = qcom_pdc_gpio_alloc,
+static const struct irq_domain_ops qcom_pdc_ops = {
+ .translate = irq_domain_translate_twocell,
+ .alloc = qcom_pdc_alloc,
.free = irq_domain_free_irqs_common,
};
@@ -361,7 +291,7 @@ static int pdc_setup_pin_mapping(struct device_node *np)
static int qcom_pdc_init(struct device_node *node, struct device_node *parent)
{
- struct irq_domain *parent_domain, *pdc_domain, *pdc_gpio_domain;
+ struct irq_domain *parent_domain, *pdc_domain;
int ret;
pdc_base = of_iomap(node, 0);
@@ -383,32 +313,21 @@ static int qcom_pdc_init(struct device_node *node, struct device_node *parent)
goto fail;
}
- pdc_domain = irq_domain_create_hierarchy(parent_domain, 0, PDC_MAX_IRQS,
- of_fwnode_handle(node),
- &qcom_pdc_ops, NULL);
- if (!pdc_domain) {
- pr_err("%pOF: GIC domain add failed\n", node);
- ret = -ENOMEM;
- goto fail;
- }
-
- pdc_gpio_domain = irq_domain_create_hierarchy(parent_domain,
+ pdc_domain = irq_domain_create_hierarchy(parent_domain,
IRQ_DOMAIN_FLAG_QCOM_PDC_WAKEUP,
PDC_MAX_GPIO_IRQS,
of_fwnode_handle(node),
- &qcom_pdc_gpio_ops, NULL);
- if (!pdc_gpio_domain) {
- pr_err("%pOF: PDC domain add failed for GPIO domain\n", node);
+ &qcom_pdc_ops, NULL);
+ if (!pdc_domain) {
+ pr_err("%pOF: PDC domain add failed\n", node);
ret = -ENOMEM;
- goto remove;
+ goto fail;
}
- irq_domain_update_bus_token(pdc_gpio_domain, DOMAIN_BUS_WAKEUP);
+ irq_domain_update_bus_token(pdc_domain, DOMAIN_BUS_WAKEUP);
return 0;
-remove:
- irq_domain_remove(pdc_domain);
fail:
kfree(pdc_region);
iounmap(pdc_base);
diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 70fa18b04ad2..b14d3f98e1eb 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -193,13 +193,11 @@ static void pcap_isr_work(struct work_struct *work)
ezx_pcap_write(pcap, PCAP_REG_MSR, isr | msr);
ezx_pcap_write(pcap, PCAP_REG_ISR, isr);
- local_irq_disable();
service = isr & ~msr;
for (irq = pcap->irq_base; service; service >>= 1, irq++) {
if (service & 1)
- generic_handle_irq(irq);
+ generic_handle_irq_safe(irq);
}
- local_irq_enable();
ezx_pcap_write(pcap, PCAP_REG_MSR, pcap->msr);
} while (gpio_get_value(pdata->gpio));
}
diff --git a/drivers/misc/hi6421v600-irq.c b/drivers/misc/hi6421v600-irq.c
index 1c763796cf1f..caa3de37698b 100644
--- a/drivers/misc/hi6421v600-irq.c
+++ b/drivers/misc/hi6421v600-irq.c
@@ -117,8 +117,8 @@ static irqreturn_t hi6421v600_irq_handler(int irq, void *__priv)
* If both powerkey down and up IRQs are received,
* handle them at the right order
*/
- generic_handle_irq(priv->irqs[POWERKEY_DOWN]);
- generic_handle_irq(priv->irqs[POWERKEY_UP]);
+ generic_handle_irq_safe(priv->irqs[POWERKEY_DOWN]);
+ generic_handle_irq_safe(priv->irqs[POWERKEY_UP]);
pending &= ~HISI_IRQ_POWERKEY_UP_DOWN;
}
@@ -126,7 +126,7 @@ static irqreturn_t hi6421v600_irq_handler(int irq, void *__priv)
continue;
for_each_set_bit(offset, &pending, BITS_PER_BYTE) {
- generic_handle_irq(priv->irqs[offset + i * BITS_PER_BYTE]);
+ generic_handle_irq_safe(priv->irqs[offset + i * BITS_PER_BYTE]);
}
}
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index b8e20a3f2b84..415f16662f88 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1537,11 +1537,8 @@ static void lan78xx_status(struct lan78xx_net *dev, struct urb *urb)
netif_dbg(dev, link, dev->net, "PHY INTR: 0x%08x\n", intdata);
lan78xx_defer_kevent(dev, EVENT_LINK_RESET);
- if (dev->domain_data.phyirq > 0) {
- local_irq_disable();
- generic_handle_irq(dev->domain_data.phyirq);
- local_irq_enable();
- }
+ if (dev->domain_data.phyirq > 0)
+ generic_handle_irq_safe(dev->domain_data.phyirq);
} else {
netdev_warn(dev->net,
"unexpected interrupt: 0x%08x\n", intdata);
diff --git a/drivers/pci/controller/pcie-apple.c b/drivers/pci/controller/pcie-apple.c
index 854d95163112..a2c3c207a04b 100644
--- a/drivers/pci/controller/pcie-apple.c
+++ b/drivers/pci/controller/pcie-apple.c
@@ -219,7 +219,7 @@ static int apple_msi_domain_alloc(struct irq_domain *domain, unsigned int virq,
if (hwirq < 0)
return -ENOSPC;
- fwspec.param[1] += hwirq;
+ fwspec.param[fwspec.param_count - 2] += hwirq;
ret = irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &fwspec);
if (ret)
diff --git a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
index 4d81908d6725..ba536fd4d674 100644
--- a/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
+++ b/drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c
@@ -78,7 +78,6 @@ struct npcm7xx_gpio {
struct gpio_chip gc;
int irqbase;
int irq;
- void *priv;
struct irq_chip irq_chip;
u32 pinctrl_id;
int (*direction_input)(struct gpio_chip *chip, unsigned offset);
@@ -226,7 +225,7 @@ static void npcmgpio_irq_handler(struct irq_desc *desc)
chained_irq_enter(chip, desc);
sts = ioread32(bank->base + NPCM7XX_GP_N_EVST);
en = ioread32(bank->base + NPCM7XX_GP_N_EVEN);
- dev_dbg(chip->parent_device, "==> got irq sts %.8x %.8x\n", sts,
+ dev_dbg(bank->gc.parent, "==> got irq sts %.8x %.8x\n", sts,
en);
sts &= en;
@@ -241,33 +240,33 @@ static int npcmgpio_set_irq_type(struct irq_data *d, unsigned int type)
gpiochip_get_data(irq_data_get_irq_chip_data(d));
unsigned int gpio = BIT(d->hwirq);
- dev_dbg(d->chip->parent_device, "setirqtype: %u.%u = %u\n", gpio,
+ dev_dbg(bank->gc.parent, "setirqtype: %u.%u = %u\n", gpio,
d->irq, type);
switch (type) {
case IRQ_TYPE_EDGE_RISING:
- dev_dbg(d->chip->parent_device, "edge.rising\n");
+ dev_dbg(bank->gc.parent, "edge.rising\n");
npcm_gpio_clr(&bank->gc, bank->base + NPCM7XX_GP_N_EVBE, gpio);
npcm_gpio_clr(&bank->gc, bank->base + NPCM7XX_GP_N_POL, gpio);
break;
case IRQ_TYPE_EDGE_FALLING:
- dev_dbg(d->chip->parent_device, "edge.falling\n");
+ dev_dbg(bank->gc.parent, "edge.falling\n");
npcm_gpio_clr(&bank->gc, bank->base + NPCM7XX_GP_N_EVBE, gpio);
npcm_gpio_set(&bank->gc, bank->base + NPCM7XX_GP_N_POL, gpio);
break;
case IRQ_TYPE_EDGE_BOTH:
- dev_dbg(d->chip->parent_device, "edge.both\n");
+ dev_dbg(bank->gc.parent, "edge.both\n");
npcm_gpio_set(&bank->gc, bank->base + NPCM7XX_GP_N_EVBE, gpio);
break;
case IRQ_TYPE_LEVEL_LOW:
- dev_dbg(d->chip->parent_device, "level.low\n");
+ dev_dbg(bank->gc.parent, "level.low\n");
npcm_gpio_set(&bank->gc, bank->base + NPCM7XX_GP_N_POL, gpio);
break;
case IRQ_TYPE_LEVEL_HIGH:
- dev_dbg(d->chip->parent_device, "level.high\n");
+ dev_dbg(bank->gc.parent, "level.high\n");
npcm_gpio_clr(&bank->gc, bank->base + NPCM7XX_GP_N_POL, gpio);
break;
default:
- dev_dbg(d->chip->parent_device, "invalid irq type\n");
+ dev_dbg(bank->gc.parent, "invalid irq type\n");
return -EINVAL;
}
@@ -289,7 +288,7 @@ static void npcmgpio_irq_ack(struct irq_data *d)
gpiochip_get_data(irq_data_get_irq_chip_data(d));
unsigned int gpio = d->hwirq;
- dev_dbg(d->chip->parent_device, "irq_ack: %u.%u\n", gpio, d->irq);
+ dev_dbg(bank->gc.parent, "irq_ack: %u.%u\n", gpio, d->irq);
iowrite32(BIT(gpio), bank->base + NPCM7XX_GP_N_EVST);
}
@@ -301,7 +300,7 @@ static void npcmgpio_irq_mask(struct irq_data *d)
unsigned int gpio = d->hwirq;
/* Clear events */
- dev_dbg(d->chip->parent_device, "irq_mask: %u.%u\n", gpio, d->irq);
+ dev_dbg(bank->gc.parent, "irq_mask: %u.%u\n", gpio, d->irq);
iowrite32(BIT(gpio), bank->base + NPCM7XX_GP_N_EVENC);
}
@@ -313,7 +312,7 @@ static void npcmgpio_irq_unmask(struct irq_data *d)
unsigned int gpio = d->hwirq;
/* Enable events */
- dev_dbg(d->chip->parent_device, "irq_unmask: %u.%u\n", gpio, d->irq);
+ dev_dbg(bank->gc.parent, "irq_unmask: %u.%u\n", gpio, d->irq);
iowrite32(BIT(gpio), bank->base + NPCM7XX_GP_N_EVENS);
}
@@ -323,7 +322,7 @@ static unsigned int npcmgpio_irq_startup(struct irq_data *d)
unsigned int gpio = d->hwirq;
/* active-high, input, clear interrupt, enable interrupt */
- dev_dbg(d->chip->parent_device, "startup: %u.%u\n", gpio, d->irq);
+ dev_dbg(gc->parent, "startup: %u.%u\n", gpio, d->irq);
npcmgpio_direction_input(gc, gpio);
npcmgpio_irq_ack(d);
npcmgpio_irq_unmask(d);
diff --git a/drivers/pinctrl/pinctrl-starfive.c b/drivers/pinctrl/pinctrl-starfive.c
index 266da41a6162..ab4b2ee9f217 100644
--- a/drivers/pinctrl/pinctrl-starfive.c
+++ b/drivers/pinctrl/pinctrl-starfive.c
@@ -1308,8 +1308,6 @@ static int starfive_probe(struct platform_device *pdev)
sfp->gc.base = -1;
sfp->gc.ngpio = NR_GPIOS;
- starfive_irq_chip.parent_device = dev;
-
sfp->gc.irq.chip = &starfive_irq_chip;
sfp->gc.irq.parent_handler = starfive_gpio_irq_handler;
sfp->gc.irq.num_parents = 1;
@@ -1330,6 +1328,8 @@ static int starfive_probe(struct platform_device *pdev)
if (ret)
return dev_err_probe(dev, ret, "could not register gpiochip\n");
+ irq_domain_set_pm_device(sfp->gc.irq.domain, dev);
+
out_pinctrl_enable:
return pinctrl_enable(sfp->pctl);
}
diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c
index 7e6347fe93f9..8a7cf1d0e968 100644
--- a/drivers/staging/greybus/gpio.c
+++ b/drivers/staging/greybus/gpio.c
@@ -391,10 +391,7 @@ static int gb_gpio_request_handler(struct gb_operation *op)
return -EINVAL;
}
- local_irq_disable();
- ret = generic_handle_irq(irq);
- local_irq_enable();
-
+ ret = generic_handle_irq_safe(irq);
if (ret)
dev_err(dev, "failed to invoke irq handler\n");
diff --git a/include/dt-bindings/interrupt-controller/apple-aic.h b/include/dt-bindings/interrupt-controller/apple-aic.h
index 604f2bb30ac0..bf3aac0e5491 100644
--- a/include/dt-bindings/interrupt-controller/apple-aic.h
+++ b/include/dt-bindings/interrupt-controller/apple-aic.h
@@ -11,5 +11,7 @@
#define AIC_TMR_HV_VIRT 1
#define AIC_TMR_GUEST_PHYS 2
#define AIC_TMR_GUEST_VIRT 3
+#define AIC_CPU_PMU_E 4
+#define AIC_CPU_PMU_P 5
#endif
diff --git a/include/linux/irq.h b/include/linux/irq.h
index 848e1e12c5c6..f92788ccdba2 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -456,7 +456,6 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
/**
* struct irq_chip - hardware interrupt chip descriptor
*
- * @parent_device: pointer to parent device for irqchip
* @name: name for /proc/interrupts
* @irq_startup: start up the interrupt (defaults to ->enable if NULL)
* @irq_shutdown: shut down the interrupt (defaults to ->disable if NULL)
@@ -503,7 +502,6 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
* @flags: chip specific flags
*/
struct irq_chip {
- struct device *parent_device;
const char *name;
unsigned int (*irq_startup)(struct irq_data *data);
void (*irq_shutdown)(struct irq_data *data);
@@ -712,10 +710,11 @@ extern struct irq_chip no_irq_chip;
extern struct irq_chip dummy_irq_chip;
extern void
-irq_set_chip_and_handler_name(unsigned int irq, struct irq_chip *chip,
+irq_set_chip_and_handler_name(unsigned int irq, const struct irq_chip *chip,
irq_flow_handler_t handle, const char *name);
-static inline void irq_set_chip_and_handler(unsigned int irq, struct irq_chip *chip,
+static inline void irq_set_chip_and_handler(unsigned int irq,
+ const struct irq_chip *chip,
irq_flow_handler_t handle)
{
irq_set_chip_and_handler_name(irq, chip, handle, NULL);
@@ -805,7 +804,7 @@ static inline void irq_set_percpu_devid_flags(unsigned int irq)
}
/* Set/get chip/data for an IRQ: */
-extern int irq_set_chip(unsigned int irq, struct irq_chip *chip);
+extern int irq_set_chip(unsigned int irq, const struct irq_chip *chip);
extern int irq_set_handler_data(unsigned int irq, void *data);
extern int irq_set_chip_data(unsigned int irq, void *data);
extern int irq_set_irq_type(unsigned int irq, unsigned int type);
diff --git a/include/linux/irqchip/versatile-fpga.h b/include/linux/irqchip/versatile-fpga.h
deleted file mode 100644
index a978fc8c7996..000000000000
--- a/include/linux/irqchip/versatile-fpga.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef PLAT_FPGA_IRQ_H
-#define PLAT_FPGA_IRQ_H
-
-struct device_node;
-struct pt_regs;
-
-void fpga_handle_irq(struct pt_regs *regs);
-void fpga_irq_init(void __iomem *, const char *, int, int, u32,
- struct device_node *node);
-int fpga_irq_of_init(struct device_node *node,
- struct device_node *parent);
-
-#endif
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 93d270ca0c56..a77584593f7d 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -160,6 +160,7 @@ static inline void generic_handle_irq_desc(struct irq_desc *desc)
int handle_irq_desc(struct irq_desc *desc);
int generic_handle_irq(unsigned int irq);
+int generic_handle_irq_safe(unsigned int irq);
#ifdef CONFIG_IRQ_DOMAIN
/*
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index d476405802e9..00d577f90883 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -151,6 +151,8 @@ struct irq_domain_chip_generic;
* @gc: Pointer to a list of generic chips. There is a helper function for
* setting up one or more generic chips for interrupt controllers
* drivers using the generic chip library which uses this pointer.
+ * @dev: Pointer to a device that the domain represent, and that will be
+ * used for power management purposes.
* @parent: Pointer to parent irq_domain to support hierarchy irq_domains
*
* Revmap data, used internally by irq_domain
@@ -171,6 +173,7 @@ struct irq_domain {
struct fwnode_handle *fwnode;
enum irq_domain_bus_token bus_token;
struct irq_domain_chip_generic *gc;
+ struct device *dev;
#ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
struct irq_domain *parent;
#endif
@@ -226,6 +229,13 @@ static inline struct device_node *irq_domain_get_of_node(struct irq_domain *d)
return to_of_node(d->fwnode);
}
+static inline void irq_domain_set_pm_device(struct irq_domain *d,
+ struct device *dev)
+{
+ if (d)
+ d->dev = dev;
+}
+
#ifdef CONFIG_IRQ_DOMAIN
struct fwnode_handle *__irq_domain_alloc_fwnode(unsigned int type, int id,
const char *name, phys_addr_t *pa);
@@ -469,7 +479,8 @@ int irq_destroy_ipi(unsigned int irq, const struct cpumask *dest);
extern struct irq_data *irq_domain_get_irq_data(struct irq_domain *domain,
unsigned int virq);
extern void irq_domain_set_info(struct irq_domain *domain, unsigned int virq,
- irq_hw_number_t hwirq, struct irq_chip *chip,
+ irq_hw_number_t hwirq,
+ const struct irq_chip *chip,
void *chip_data, irq_flow_handler_t handler,
void *handler_data, const char *handler_name);
extern void irq_domain_reset_irq_data(struct irq_data *irq_data);
@@ -512,7 +523,7 @@ extern int irq_domain_alloc_irqs_hierarchy(struct irq_domain *domain,
extern int irq_domain_set_hwirq_and_chip(struct irq_domain *domain,
unsigned int virq,
irq_hw_number_t hwirq,
- struct irq_chip *chip,
+ const struct irq_chip *chip,
void *chip_data);
extern void irq_domain_free_irqs_common(struct irq_domain *domain,
unsigned int virq,
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index c09324663088..54af0deb239b 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -38,7 +38,7 @@ struct irqaction chained_action = {
* @irq: irq number
* @chip: pointer to irq chip description structure
*/
-int irq_set_chip(unsigned int irq, struct irq_chip *chip)
+int irq_set_chip(unsigned int irq, const struct irq_chip *chip)
{
unsigned long flags;
struct irq_desc *desc = irq_get_desc_lock(irq, &flags, 0);
@@ -46,10 +46,7 @@ int irq_set_chip(unsigned int irq, struct irq_chip *chip)
if (!desc)
return -EINVAL;
- if (!chip)
- chip = &no_irq_chip;
-
- desc->irq_data.chip = chip;
+ desc->irq_data.chip = (struct irq_chip *)(chip ?: &no_irq_chip);
irq_put_desc_unlock(desc, flags);
/*
* For !CONFIG_SPARSE_IRQ make the irq show up in
@@ -1073,7 +1070,7 @@ irq_set_chained_handler_and_data(unsigned int irq, irq_flow_handler_t handle,
EXPORT_SYMBOL_GPL(irq_set_chained_handler_and_data);
void
-irq_set_chip_and_handler_name(unsigned int irq, struct irq_chip *chip,
+irq_set_chip_and_handler_name(unsigned int irq, const struct irq_chip *chip,
irq_flow_handler_t handle, const char *name)
{
irq_set_chip(irq, chip);
@@ -1558,6 +1555,14 @@ int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
return 0;
}
+static struct device *irq_get_parent_device(struct irq_data *data)
+{
+ if (data->domain)
+ return data->domain->dev;
+
+ return NULL;
+}
+
/**
* irq_chip_pm_get - Enable power for an IRQ chip
* @data: Pointer to interrupt specific data
@@ -1567,12 +1572,13 @@ int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
*/
int irq_chip_pm_get(struct irq_data *data)
{
+ struct device *dev = irq_get_parent_device(data);
int retval;
- if (IS_ENABLED(CONFIG_PM) && data->chip->parent_device) {
- retval = pm_runtime_get_sync(data->chip->parent_device);
+ if (IS_ENABLED(CONFIG_PM) && dev) {
+ retval = pm_runtime_get_sync(dev);
if (retval < 0) {
- pm_runtime_put_noidle(data->chip->parent_device);
+ pm_runtime_put_noidle(dev);
return retval;
}
}
@@ -1590,10 +1596,11 @@ int irq_chip_pm_get(struct irq_data *data)
*/
int irq_chip_pm_put(struct irq_data *data)
{
+ struct device *dev = irq_get_parent_device(data);
int retval = 0;
- if (IS_ENABLED(CONFIG_PM) && data->chip->parent_device)
- retval = pm_runtime_put(data->chip->parent_device);
+ if (IS_ENABLED(CONFIG_PM) && dev)
+ retval = pm_runtime_put(dev);
return (retval < 0) ? retval : 0;
}
diff --git a/kernel/irq/debugfs.c b/kernel/irq/debugfs.c
index e4cff358b437..2b43f5f5033d 100644
--- a/kernel/irq/debugfs.c
+++ b/kernel/irq/debugfs.c
@@ -69,8 +69,12 @@ irq_debug_show_chip(struct seq_file *m, struct irq_data *data, int ind)
seq_printf(m, "chip: None\n");
return;
}
- seq_printf(m, "%*schip: %s\n", ind, "", chip->name);
- seq_printf(m, "%*sflags: 0x%lx\n", ind + 1, "", chip->flags);
+ seq_printf(m, "%*schip: ", ind, "");
+ if (chip->irq_print_chip)
+ chip->irq_print_chip(data, m);
+ else
+ seq_printf(m, "%s", chip->name);
+ seq_printf(m, "\n%*sflags: 0x%lx\n", ind + 1, "", chip->flags);
irq_debug_show_bits(m, ind, chip->flags, irqchip_flags,
ARRAY_SIZE(irqchip_flags));
}
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 2267e6527db3..939d21cd55c3 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -640,7 +640,7 @@ int handle_irq_desc(struct irq_desc *desc)
return -EINVAL;
data = irq_desc_get_irq_data(desc);
- if (WARN_ON_ONCE(!in_irq() && handle_enforce_irqctx(data)))
+ if (WARN_ON_ONCE(!in_hardirq() && handle_enforce_irqctx(data)))
return -EPERM;
generic_handle_irq_desc(desc);
@@ -662,6 +662,29 @@ int generic_handle_irq(unsigned int irq)
}
EXPORT_SYMBOL_GPL(generic_handle_irq);
+/**
+ * generic_handle_irq_safe - Invoke the handler for a particular irq from any
+ * context.
+ * @irq: The irq number to handle
+ *
+ * Returns: 0 on success, a negative value on error.
+ *
+ * This function can be called from any context (IRQ or process context). It
+ * will report an error if not invoked from IRQ context and the irq has been
+ * marked to enforce IRQ-context only.
+ */
+int generic_handle_irq_safe(unsigned int irq)
+{
+ unsigned long flags;
+ int ret;
+
+ local_irq_save(flags);
+ ret = handle_irq_desc(irq_to_desc(irq));
+ local_irq_restore(flags);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(generic_handle_irq_safe);
+
#ifdef CONFIG_IRQ_DOMAIN
/**
* generic_handle_domain_irq - Invoke the handler for a HW irq belonging
@@ -676,7 +699,7 @@ EXPORT_SYMBOL_GPL(generic_handle_irq);
*/
int generic_handle_domain_irq(struct irq_domain *domain, unsigned int hwirq)
{
- WARN_ON_ONCE(!in_irq());
+ WARN_ON_ONCE(!in_hardirq());
return handle_irq_desc(irq_resolve_mapping(domain, hwirq));
}
EXPORT_SYMBOL_GPL(generic_handle_domain_irq);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index bf38c546aa25..d5ce96510549 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -1319,7 +1319,8 @@ EXPORT_SYMBOL_GPL(irq_domain_get_irq_data);
* @chip_data: The associated chip data
*/
int irq_domain_set_hwirq_and_chip(struct irq_domain *domain, unsigned int virq,
- irq_hw_number_t hwirq, struct irq_chip *chip,
+ irq_hw_number_t hwirq,
+ const struct irq_chip *chip,
void *chip_data)
{
struct irq_data *irq_data = irq_domain_get_irq_data(domain, virq);
@@ -1328,7 +1329,7 @@ int irq_domain_set_hwirq_and_chip(struct irq_domain *domain, unsigned int virq,
return -ENOENT;
irq_data->hwirq = hwirq;
- irq_data->chip = chip ? chip : &no_irq_chip;
+ irq_data->chip = (struct irq_chip *)(chip ? chip : &no_irq_chip);
irq_data->chip_data = chip_data;
return 0;
@@ -1347,7 +1348,7 @@ EXPORT_SYMBOL_GPL(irq_domain_set_hwirq_and_chip);
* @handler_name: The interrupt handler name
*/
void irq_domain_set_info(struct irq_domain *domain, unsigned int virq,
- irq_hw_number_t hwirq, struct irq_chip *chip,
+ irq_hw_number_t hwirq, const struct irq_chip *chip,
void *chip_data, irq_flow_handler_t handler,
void *handler_data, const char *handler_name)
{
@@ -1853,7 +1854,7 @@ EXPORT_SYMBOL_GPL(irq_domain_get_irq_data);
* @handler_name: The interrupt handler name
*/
void irq_domain_set_info(struct irq_domain *domain, unsigned int virq,
- irq_hw_number_t hwirq, struct irq_chip *chip,
+ irq_hw_number_t hwirq, const struct irq_chip *chip,
void *chip_data, irq_flow_handler_t handler,
void *handler_data, const char *handler_name)
{
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 41f470929e99..fac801815554 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -222,7 +222,7 @@ void __local_bh_enable_ip(unsigned long ip, unsigned int cnt)
u32 pending;
int curcnt;
- WARN_ON_ONCE(in_irq());
+ WARN_ON_ONCE(in_hardirq());
lockdep_assert_irqs_enabled();
local_irq_save(flags);
@@ -305,7 +305,7 @@ void __local_bh_disable_ip(unsigned long ip, unsigned int cnt)
{
unsigned long flags;
- WARN_ON_ONCE(in_irq());
+ WARN_ON_ONCE(in_hardirq());
raw_local_irq_save(flags);
/*
@@ -352,14 +352,14 @@ static void __local_bh_enable(unsigned int cnt)
*/
void _local_bh_enable(void)
{
- WARN_ON_ONCE(in_irq());
+ WARN_ON_ONCE(in_hardirq());
__local_bh_enable(SOFTIRQ_DISABLE_OFFSET);
}
EXPORT_SYMBOL(_local_bh_enable);
void __local_bh_enable_ip(unsigned long ip, unsigned int cnt)
{
- WARN_ON_ONCE(in_irq());
+ WARN_ON_ONCE(in_hardirq());
lockdep_assert_irqs_enabled();
#ifdef CONFIG_TRACE_IRQFLAGS
local_irq_disable();
@@ -618,7 +618,7 @@ static inline void tick_irq_exit(void)
/* Make sure that timer wheel updates are propagated */
if ((idle_cpu(cpu) && !need_resched()) || tick_nohz_full_cpu(cpu)) {
- if (!in_irq())
+ if (!in_hardirq())
tick_nohz_irq_exit();
}
#endif
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