linux/drivers/irqchip
Linus Torvalds 6bfd2d442a Updates for the interrupt subsystem:
- Core code:
 
    - Interrupt storm detection for the lockup watchdog:
 
      Lockups which are caused by interrupt storms are not easy to debug
      because there is no information about the events which make the lockup
      detector trigger.
 
      To make this more user friendly, provide an extenstion to interrupt
      statistics which allows to take snapshots and an interface to retrieve
      the delta to the snapshot. Use this new mechanism in the watchdog code
      to do a two stage lockup analysis by taking the snapshot and printing
      the deltas for the topmost active interrupts on the second trigger.
 
      Note: This contains both the interrupt and the watchdog changes as
      the latter depend on the former obviously.
 
   - Avoid summation loops in the /proc/interrupts output and use the global
     counter when possible
 
   - Skip suspended interrupts on CPU hotplug operations to ensure that they
     are not delivered before the system resumes the device drivers when
     coming out of suspend.
 
   - On CPU hot-unplug interrupts which are affine to the outgoing CPU are
     migrated to a different CPU in the affinity mask. This can fail when
     the CPUs have no vectors left. Instead of giving up try to migrate it
     to any online CPU and thereby breaking the affinity setting in order to
     prevent a stale device interrupt which targets an offline CPU
 
   - The usual small cleanups
 
  - Driver code:
 
   - Support for the RISCV AIA MSI controller
 
   - Make the interrupt allocation for the Loongson PCH controller more
     flexible to prevent vector exhaustion
 
   - The usual set of cleanups and fixes all over the place
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmZBCM0THHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoeZHEACqMLN3K+1HyWflYtcTHJeYCjZLHS77
 2tQeKaaskOA4W6dcGXPxMw5CHqAobHVQQMqgcJxhUdqQiOJnFFnrtCD7JtqM0hWK
 UORNbyeovuhAo+iJ0fTuS8p63H7vm2GIWwBLWJnOuChYv/6Yyx5Cald1skvyvbzL
 zePhiiAf5mkdmJMeT5wJSCqEWSRYOXsVAJ/0YAwFG3bKkJH3bmDo6SDJY02sXT5P
 pjbtD/0hum9wIVT4fNdYleHHQMdBdj9dLlcxXBikHq50mDMw7GxvjKiLcXmoerw3
 rEBfVVJp3qpSofpNJZ3HH0ywcF3yUzq04/LPE9Tk2MoQ8NF0GzP8r9Ahke4B7cUj
 FysWNiAlC2IisEi6th313FZkTLx0zgewdsdEBTLt8eAE9TU0wamRbo99LZ8i/Qr3
 hk7jV8DzL+EDQJLgl4p1iPJgA708eW17tbCxLEa15VKVV6P58miohmhx/IfPO2Gx
 FV1PPehtItsmiK/UoRtUCoFdFsqNQtOE+h8DWLyy8RDmhBqGbn9Ut4euXiQIF+rX
 WJKPFfslCTR39BrBcZnZeNsgOCN7tEfFRstzjzkey1DaeTGWtxmA5UGhpC2vT74y
 YyXluvZlgKr4S64ABmcqQj++hQLho0OQAih3uW5YVxt4VxEUcXYMJOsV1AQGpMjF
 UnewWH5opBQdfw==
 =jFLf
 -----END PGP SIGNATURE-----

Merge tag 'irq-core-2024-05-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull interrupt subsystem updates from Thomas Gleixner:
 "Core code:

   - Interrupt storm detection for the lockup watchdog:

     Lockups which are caused by interrupt storms are not easy to debug
     because there is no information about the events which make the
     lockup detector trigger.

     To make this more user friendly, provide an extenstion to interrupt
     statistics which allows to take snapshots and an interface to
     retrieve the delta to the snapshot. Use this new mechanism in the
     watchdog code to do a two stage lockup analysis by taking the
     snapshot and printing the deltas for the topmost active interrupts
     on the second trigger.

     Note: This contains both the interrupt and the watchdog changes as
     the latter depend on the former obviously.

   - Avoid summation loops in the /proc/interrupts output and use the
     global counter when possible

   - Skip suspended interrupts on CPU hotplug operations to ensure that
     they are not delivered before the system resumes the device drivers
     when coming out of suspend.

   - On CPU hot-unplug interrupts which are affine to the outgoing CPU
     are migrated to a different CPU in the affinity mask. This can fail
     when the CPUs have no vectors left. Instead of giving up try to
     migrate it to any online CPU and thereby breaking the affinity
     setting in order to prevent a stale device interrupt which targets
     an offline CPU

   - The usual small cleanups

  Driver code:

   - Support for the RISCV AIA MSI controller

   - Make the interrupt allocation for the Loongson PCH controller more
     flexible to prevent vector exhaustion

   - The usual set of cleanups and fixes all over the place"

* tag 'irq-core-2024-05-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits)
  irqchip/gic-v3-its: Remove BUG_ON in its_vpe_irq_domain_alloc
  cpuidle: Avoid explicit cpumask allocation on stack
  irqchip/sifive-plic: Avoid explicit cpumask allocation on stack
  irqchip/riscv-aplic-direct: Avoid explicit cpumask allocation on stack
  irqchip/loongson-eiointc: Avoid explicit cpumask allocation on stack
  irqchip/gic-v3-its: Avoid explicit cpumask allocation on stack
  irqchip/irq-bcm6345-l1: Avoid explicit cpumask allocation on stack
  cpumask: Introduce cpumask_first_and_and()
  irqchip/irq-brcmstb-l2: Avoid saving mask on shutdown
  genirq: Reuse irq_is_nmi()
  genirq/cpuhotplug: Retry with cpu_online_mask when migration fails
  genirq/cpuhotplug: Skip suspended interrupts when restoring affinity
  arm64: dts: st: Add interrupt parent to pinctrl on stm32mp251
  arm64: dts: st: Add exti1 and exti2 nodes on stm32mp251
  ARM: dts: stm32: List exti parent interrupts on stm32mp131
  ARM: dts: stm32: List exti parent interrupts on stm32mp151
  arm64: Kconfig.platforms: Enable STM32_EXTI for ARCH_STM32
  irqchip/stm32-exti: Mark events reserved with RIF configuration check
  irqchip/stm32-exti: Skip secure events
  irqchip/stm32-exti: Convert driver to standard PM
  ...
2024-05-14 09:47:14 -07:00
..
alphascale_asm9260-icoll.h
exynos-combiner.c
irq-al-fic.c irqchip/al-fic: remove MODULE_LICENSE in non-modules 2023-04-13 13:13:50 -07:00
irq-alpine-msi.c irqchip/alpine-msi: Fix off-by-one in allocation error path 2024-04-09 11:03:15 +02:00
irq-apple-aic.c ARM: 2023-02-25 11:30:21 -08:00
irq-armada-370-xp.c irqchip/armada-370-xp: Suppress unused-function warning 2024-03-26 02:12:16 +01:00
irq-aspeed-i2c-ic.c irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value 2022-05-04 16:37:48 +01:00
irq-aspeed-scu-ic.c irqchip/aspeed-scu-ic: Correctly initialise status and enable registers 2023-02-05 10:55:19 +00:00
irq-aspeed-vic.c
irq-ath79-cpu.c
irq-ath79-misc.c
irq-atmel-aic5.c
irq-atmel-aic-common.c
irq-atmel-aic-common.h
irq-atmel-aic.c
irq-bcm2835.c
irq-bcm2836.c irqchip: Use irq_domain_alloc_irqs() 2023-01-11 19:51:39 +01:00
irq-bcm6345-l1.c irqchip/irq-bcm6345-l1: Avoid explicit cpumask allocation on stack 2024-04-24 21:23:49 +02:00
irq-bcm7038-l1.c irqchip/irq-bcm7038-l1: Prefer struct_size over open coded arithmetic 2024-02-13 10:53:15 +01:00
irq-bcm7120-l2.c irqchip/irq-bcm7120-l2: Set IRQ_LEVEL for level triggered interrupts 2023-02-18 14:23:41 +00:00
irq-brcmstb-l2.c irqchip/irq-brcmstb-l2: Avoid saving mask on shutdown 2024-04-24 21:11:48 +02:00
irq-clps711x.c irqchip/clps711x: Remove unused clps711x_intc_init() function 2023-06-17 07:21:08 +01:00
irq-crossbar.c
irq-csky-apb-intc.c irqchip: Use of_property_read_bool() for boolean properties 2023-04-08 11:07:49 +01:00
irq-csky-mpintc.c
irq-davinci-cp-intc.c
irq-digicolor.c
irq-dw-apb-ictl.c
irq-ftintc010.c irqchip/ftintc010: Mark all function static 2023-06-17 07:20:52 +01:00
irq-gic-common.c irqchip/gic: Correctly validate OF quirk descriptors 2023-05-30 11:01:22 +01:00
irq-gic-common.h irqchip/gic-v3: Enable non-coherent redistributors/ITSes DT probing 2023-10-07 12:47:12 +01:00
irq-gic-pm.c irqchip: Explicitly include correct DT includes 2023-08-21 17:49:11 +01:00
irq-gic-realview.c irqchip/gic/realview: Fix refcount leak in realview_gic_of_init 2022-06-09 17:36:57 +01:00
irq-gic-v2m.c irqchip: Use of_property_read_bool() for boolean properties 2023-04-08 11:07:49 +01:00
irq-gic-v3-its-fsl-mc-msi.c irqchip: Explicitly include correct DT includes 2023-08-21 17:49:11 +01:00
irq-gic-v3-its-pci-msi.c
irq-gic-v3-its-platform-msi.c
irq-gic-v3-its.c Updates for the interrupt subsystem: 2024-05-14 09:47:14 -07:00
irq-gic-v3-mbi.c irqchip/gic-v3-mbi: Use irq_domain_create_hierarchy() 2023-02-13 19:31:25 +00:00
irq-gic-v3.c Updates for the MSI interrupt subsystem and RISC-V initial MSI support: 2024-03-11 14:03:03 -07:00
irq-gic-v4.c sched.h: move pid helpers to pid.h 2023-12-20 19:26:31 -05:00
irq-gic.c irqchip/gic(v3): Replace gic_irq() with irqd_to_hwirq() 2024-01-24 16:02:48 +01:00
irq-goldfish-pic.c
irq-hip04.c
irq-i8259.c irqchipr/i8259: Mark i8259_of_init() static 2023-08-21 17:40:30 +01:00
irq-idt3243x.c
irq-imgpdc.c irqchip/imgpdc: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:09 +01:00
irq-imx-gpcv2.c irqchip/irq-imx-gpcv2: Mark fwnode device as not initialized 2023-02-08 13:37:55 +01:00
irq-imx-intmux.c Updates for the MSI interrupt subsystem and RISC-V initial MSI support: 2024-03-11 14:03:03 -07:00
irq-imx-irqsteer.c irqchip/imx-irqsteer: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:09 +01:00
irq-imx-mu-msi.c irqchip/imx-mu-msi: Do not check for 0 return after calling platform_get_irq() 2023-08-21 17:42:00 +01:00
irq-ingenic-tcu.c
irq-ingenic.c
irq-ixp4xx.c irq/gpio: ixp4xx: Drop boardfile probe path 2022-04-25 20:53:18 +02:00
irq-jcore-aic.c irqchip/jcore-aic: Fix missing allocation of IRQ descriptors 2023-06-17 07:54:48 +01:00
irq-keystone.c irqchip/keystone: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:09 +01:00
irq-loongarch-cpu.c Merge branch irq/loongarch-of into irq/irqchip-next 2022-12-05 10:45:11 +00:00
irq-loongson-eiointc.c irqchip/loongson-eiointc: Avoid explicit cpumask allocation on stack 2024-04-24 21:23:49 +02:00
irq-loongson-htpic.c
irq-loongson-htvec.c irqchip: Explicitly include correct DT includes 2023-08-21 17:49:11 +01:00
irq-loongson-liointc.c irqchip/loongson-liointc: Add IRQCHIP_SKIP_SET_WAKE flag 2023-06-16 12:59:28 +01:00
irq-loongson-pch-lpc.c irqchip/loongson-pch-lpc: Add suspend/resume support 2022-11-26 13:12:13 +00:00
irq-loongson-pch-msi.c irqchip/loongson-pch-msi: Fix off-by-one on allocation error path 2024-04-09 11:03:16 +02:00
irq-loongson-pch-pic.c irqchip/loongson-pch-pic: Update interrupt registration policy 2024-04-23 00:17:07 +02:00
irq-lpc32xx.c
irq-ls1x.c
irq-ls-extirq.c irqchip/ls-extirq: Fix endianness detection 2022-12-05 10:39:52 +00:00
irq-ls-scfg-msi.c irqchip/ls-scfg-msi: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:10 +01:00
irq-madera.c irqchip/madera: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:10 +01:00
irq-mbigen.c irqchip/mbigen: Don't use bus_get_dev_root() to find the parent 2024-02-21 18:40:00 +01:00
irq-mchp-eic.c irqchip/mchp-eic: remove MODULE_LICENSE in non-modules 2023-04-13 13:13:52 -07:00
irq-meson-gpio.c irqchip/meson-gpio: Add support for Amlogic-T7 SoCs 2024-02-22 18:04:42 +01:00
irq-mips-cpu.c
irq-mips-gic.c irqchip/mips-gic: Mark gic_irq_domain_free() static 2023-08-21 17:40:20 +01:00
irq-mmp.c irqchip/mmp: Remove non-DT codepath 2023-06-17 07:21:02 +01:00
irq-mscc-ocelot.c
irq-mst-intc.c
irq-mtk-cirq.c irqchip/irq-mtk-cirq: Add support for System CIRQ on MT8192 2022-11-28 11:44:02 +00:00
irq-mtk-sysirq.c
irq-mvebu-gicp.c irqchip/irq-mvebu-gicp: Fix refcount leak in mvebu_gicp_probe 2023-02-05 11:11:24 +00:00
irq-mvebu-icu.c irqchip/irq-mvebu-icu: Fix works by chance pointer assignment 2022-12-06 12:50:17 +01:00
irq-mvebu-odmi.c irqchip/mvebu-odmi: Use irq_domain_create_hierarchy() 2023-02-13 19:31:25 +00:00
irq-mvebu-pic.c irqchip/mvebu-pic: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:10 +01:00
irq-mvebu-sei.c irqchip/irq-mvebu-sei: Use devm_platform_get_and_ioremap_resource() 2023-08-21 17:49:11 +01:00
irq-mxs.c irqchip/mxs: Declare icoll_handle_irq() as static 2024-04-23 00:28:14 +02:00
irq-nvic.c ARM development updates for 5.18: 2022-03-23 17:35:57 -07:00
irq-omap-intc.c
irq-ompic.c
irq-or1k-pic.c irqchip: or1k-pic: Undefine mask_ack for level triggered hardware 2022-06-28 17:31:15 +09:00
irq-orion.c irqchip/orion: Use of_address_count() helper 2023-08-21 17:48:59 +01:00
irq-owl-sirq.c
irq-partition-percpu.c
irq-pic32-evic.c
irq-pruss-intc.c irqchip/pruss-intc: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:10 +01:00
irq-qcom-mpm.c irqchip/qcom-mpm: Fix IS_ERR() vs NULL check in qcom_mpm_init() 2024-02-13 10:26:15 +01:00
irq-rda-intc.c
irq-realtek-rtl.c irqchip/realtek-rtl: use parent interrupts 2022-09-28 14:17:10 +01:00
irq-renesas-intc-irqpin.c irqchip/renesas-intc-irqpin: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:10 +01:00
irq-renesas-irqc.c irqchip/renesas-irqc: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:10 +01:00
irq-renesas-rza1.c irqchip/renesas-rza1: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:10 +01:00
irq-renesas-rzg2l.c irqchip/renesas-rzg2l: Simplify rzg2l_irqc_irq_{en,dis}able() 2024-03-25 17:38:28 +01:00
irq-riscv-aplic-direct.c irqchip/riscv-aplic-direct: Avoid explicit cpumask allocation on stack 2024-04-24 21:23:49 +02:00
irq-riscv-aplic-main.c irqchip/riscv-aplic: Add support for MSI-mode 2024-03-25 17:38:29 +01:00
irq-riscv-aplic-main.h irqchip/riscv-aplic: Add support for MSI-mode 2024-03-25 17:38:29 +01:00
irq-riscv-aplic-msi.c irqchip/riscv-aplic: Fix spelling mistake "forwared" -> "forwarded" 2024-04-09 11:03:15 +02:00
irq-riscv-imsic-early.c irqchip: Add RISC-V incoming MSI controller early driver 2024-03-25 17:38:28 +01:00
irq-riscv-imsic-platform.c irqchip/riscv-imsic: Fix boot time update effective affinity warning 2024-04-14 13:28:49 +02:00
irq-riscv-imsic-state.c irqchip: Add RISC-V incoming MSI controller early driver 2024-03-25 17:38:28 +01:00
irq-riscv-imsic-state.h irqchip/riscv-imsic: Add device MSI domain support for platform devices 2024-03-25 17:38:28 +01:00
irq-riscv-intc.c irqchip/riscv-intc: Fix use of AIA interrupts 32-63 on riscv32 2024-03-15 15:27:02 +01:00
irq-sa11x0.c
irq-sifive-plic.c irqchip/sifive-plic: Avoid explicit cpumask allocation on stack 2024-04-24 21:23:49 +02:00
irq-sl28cpld.c irqchip/irq-sl28cpld: remove MODULE_LICENSE in non-modules 2023-04-13 13:13:53 -07:00
irq-sni-exiu.c irqchip/exiu: Fix acknowledgment of edge triggered interrupts 2022-05-04 16:33:17 +01:00
irq-sp7021-intc.c irqchip: Add Sunplus SP7021 interrupt controller driver 2022-07-08 14:23:57 +02:00
irq-st.c irqchip: Explicitly include correct DT includes 2023-08-21 17:49:11 +01:00
irq-starfive-jh8100-intc.c irqchip: Add StarFive external interrupt controller 2024-02-26 15:09:18 +01:00
irq-stm32-exti.c irqchip/stm32-exti: Mark events reserved with RIF configuration check 2024-04-23 00:28:15 +02:00
irq-sun4i.c
irq-sun6i-r.c irqchip/sun6i-r: Use NULL for chip_data 2022-05-04 16:36:59 +01:00
irq-sunxi-nmi.c irqchip: Remove redundant irq_chip::name initialization 2024-03-25 17:38:29 +01:00
irq-tb10x.c irqchip: Remove redundant irq_chip::name initialization 2024-03-25 17:38:29 +01:00
irq-tegra.c irqchip/tegra: Fix overflow implicit truncation warnings 2022-06-15 17:41:11 +02:00
irq-ti-sci-inta.c irqchip: Explicitly include correct DT includes 2023-08-21 17:49:11 +01:00
irq-ti-sci-intr.c irqchip: Explicitly include correct DT includes 2023-08-21 17:49:11 +01:00
irq-ts4800.c irqchip/ts4800: Convert to platform_driver::remove_new() callback 2024-02-27 18:12:11 +01:00
irq-uniphier-aidet.c irqchip: Explicitly include correct DT includes 2023-08-21 17:49:11 +01:00
irq-versatile-fpga.c irqchip: irq-versatile-fpga: remove obsolete oxnas compatible 2023-08-14 10:26:56 +02:00
irq-vf610-mscm-ir.c
irq-vic.c irqchip/vic: Fix a kernel-doc warning 2024-02-21 18:31:08 +01:00
irq-vt8500.c
irq-wpcm450-aic.c irqchip/wpcm450: Fix memory leak in wpcm450_aic_of_init() 2022-11-26 13:29:48 +00:00
irq-xilinx-intc.c
irq-xtensa-mx.c irqchip: irq-xtensa-mx: include header for missing prototype 2023-09-20 05:03:20 -07:00
irq-xtensa-pic.c irqchip/irq-xtensa-pic: Clean up 2023-12-12 15:45:39 +01:00
irq-zevio.c
irqchip.c irqchip: Explicitly include correct DT includes 2023-08-21 17:49:11 +01:00
Kconfig irqchip/loongson: Select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP for IRQ_LOONGARCH_CPU 2024-04-09 11:03:16 +02:00
Makefile irqchip/riscv-aplic: Add support for MSI-mode 2024-03-25 17:38:29 +01:00
qcom-irq-combiner.c
qcom-pdc.c irqchip/qcom-pdc: Add support for v3.2 HW 2023-09-12 13:38:08 +01:00
spear-shirq.c