linux/kernel/irq, branch v6.19

treewide: Update email address

2026-01-11T16:09:11Z

In a vain attempt to consolidate the email zoo switch everything to the kernel.org account. Signed-off-by: Thomas Gleixner Signed-off-by: Linus Torvalds

Merge tag 'irq-urgent-2025-12-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-12-21T22:34:13Z

Pull irq fix from Ingo Molnar: "Fix IRQ thread affinity flags setup regression" * tag 'irq-urgent-2025-12-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: genirq: Don't overwrite interrupt thread flags on setup

Merge tag 'irq-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-12-13T18:07:09Z

Pull irq fixes from Ingo Molnar: - Fix error code in the irqchip/mchp-eic driver - Fix setup_percpu_irq() affinity assumptions - Remove the unused irq_domain_add_tree() function * tag 'irq-urgent-2025-12-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mchp-eic: Fix error code in mchp_eic_domain_alloc() irqdomain: Delete irq_domain_add_tree() genirq: Allow NULL affinity for setup_percpu_irq()

genirq: Don't overwrite interrupt thread flags on setup

2025-12-13T01:29:33Z

Chris reported that the recent affinity management changes result in overwriting the already initialized thread flags. Use set_bit() to set the affinity bit instead of assigning the bit value to the flags. Fixes: 801afdfbfcd9 ("genirq: Fix interrupt threads affinity vs. cpuset isolated partitions") Reported-by: Chris Mason Signed-off-by: Thomas Gleixner Acked-by: Frederic Weisbecker Link: https://patch.msgid.link/87ecp0e4cf.ffs@tglx Closes: https://lore.kernel.org/all/20251212014848.3509622-1-clm@meta.com

Merge tag 's390-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2025-12-10T23:19:46Z

Pull more s390 updates from Heiko Carstens: - Use the MSI parent domain API instead of the legacy API for setup and teardown of PCI MSI IRQs - Select POSIX_CPU_TIMERS_TASK_WORK now that VIRT_XFER_TO_GUEST_WORK has been implemented for s390 - Fix a KVM bug which can lead to guest memory corruption - Fix KASAN shadow memory mapping for hotplugged memory - Minor bug fixes and improvements * tag 's390-6.19-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/bug: Add missing alignment s390/bug: Add missing CONFIG_BUG ifdef again KVM: s390: Fix gmap_helper_zap_one_page() again s390/pci: Migrate s390 IRQ logic to IRQ domain API genirq: Change hwirq parameter to irq_hw_number_t s390: Select POSIX_CPU_TIMERS_TASK_WORK s390: Unmap early KASAN shadow on memory offlining s390/vmem: Support 2G page splitting for KASAN shadow freeing s390/boot: Use entire page for PTEs s390/vmur: Use scnprintf() instead of sprintf()

genirq: Allow NULL affinity for setup_percpu_irq()

2025-12-10T00:47:33Z

setup_percpu_irq() was forgotten when the percpu_devid infrastructure was updated to deal with CPU affinities. In order to keep ignoring users of this legacy API, provide sensible defaults by setting the affinity to cpu_online_mask if none was provided by the caller. Fixes: bdf4e2ac295fe ("genirq: Allow per-cpu interrupt sharing for non-overlapping affinities") Reported-by: Daniel Thompson Signed-off-by: Marc Zyngier Signed-off-by: Thomas Gleixner Link: https://patch.msgid.link/20251205091814.3944205-1-maz@kernel.org Closes: https://lore.kernel.org/r/aTFozefMQRg7lYxh@aspen.lan

genirq: Change hwirq parameter to irq_hw_number_t

2025-12-07T15:15:22Z

The irqdomain implementation internally represents hardware IRQs as irq_hw_number_t, which is defined as unsigned long int. When providing an irq_hw_number_t to the generic_handle_domain() functions that expect and unsigned int hwirq, this can lead to a loss of information. Change the hwirq parameter to irq_hw_number_t to support the full range of hwirqs. Reviewed-by: Thomas Gleixner Reviewed-by: Niklas Schnelle Reviewed-by: Farhan Ali Signed-off-by: Tobias Schumacher Signed-off-by: Heiko Carstens

Merge tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2025-12-06T01:29:04Z

Pull SoC driver updates from Arnd Bergmann: "This is the first half of the driver changes: - A treewide interface change to the "syscore" operations for power management, as a preparation for future Tegra specific changes - Reset controller updates with added drivers for LAN969x, eic770 and RZ/G3S SoCs - Protection of system controller registers on Renesas and Google SoCs, to prevent trivially triggering a system crash from e.g. debugfs access - soc_device identification updates on Nvidia, Exynos and Mediatek - debugfs support in the ST STM32 firewall driver - Minor updates for SoC drivers on AMD/Xilinx, Renesas, Allwinner, TI - Cleanups for memory controller support on Nvidia and Renesas" * tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (114 commits) memory: tegra186-emc: Fix missing put_bpmp Documentation: reset: Remove reset_controller_add_lookup() reset: fix BIT macro reference reset: rzg2l-usbphy-ctrl: Fix a NULL vs IS_ERR() bug in probe reset: th1520: Support reset controllers in more subsystems reset: th1520: Prepare for supporting multiple controllers dt-bindings: reset: thead,th1520-reset: Add controllers for more subsys dt-bindings: reset: thead,th1520-reset: Remove non-VO-subsystem resets reset: remove legacy reset lookup code clk: davinci: psc: drop unused reset lookup reset: rzg2l-usbphy-ctrl: Add support for RZ/G3S SoC reset: rzg2l-usbphy-ctrl: Add support for USB PWRRDY dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support reset: eswin: Add eic7700 reset driver dt-bindings: reset: eswin: Documentation for eic7700 SoC reset: sparx5: add LAN969x support dt-bindings: reset: microchip: Add LAN969x support soc: rockchip: grf: Add select correct PWM implementation on RK3368 soc/tegra: pmc: Add USB wake events for Tegra234 amba: tegra-ahb: Fix device leak on SMMU enable ...

Merge tag 'irq-msi-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-12-02T17:35:59Z

Pull MSI updates from Thomas Gleixner: "Updates for [PCI] MSI related code: - Remove one variant of PCI/MSI management as all users have been converted to use per device domains. That reduces the variants to two: The modern and the real archaic legacy variant, which keeps the usual suspects in the museum category alive. - Rework the platform MSI device ID detection mechanism in the ARM GIC world to address resource leaks, duplicated code and other details. This requires a corresponding preparatory step in the PCI/iproc driver. - Trivial core code cleanups" * tag 'irq-msi-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/gic-its: Rework platform MSI deviceID detection PCI: iproc: Implement MSI controller node detection with of_msi_xlate() genirq/msi: Slightly simplify msi_domain_alloc() PCI/MSI: Delete pci_msi_create_irq_domain()

Merge tag 'irq-core-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2025-12-02T17:14:26Z

Pull irq core updates from Thomas Gleixner: "Updates for the interrupt core and treewide cleanups: - Rework of the Per Processor Interrupt (PPI) management on ARM[64] PPI support was built under the assumption that the systems are homogenous so that the same CPU local device types are connected to them. That's unfortunately wishful thinking and created horrible workarounds. This rework provides affinity management for PPIs so that they can be individually configured in the firmware tables and mops up the related drivers all over the place. - Prevent CPUSET/isolation changes to arbitrarily affine interrupt threads to random CPUs, which ignores user or driver settings. - Plug a harmless race in the interrupt affinity proc interface, which allows to see a half updated mask - Adjust the priority of secondary interrupt threads on RT, so that the combination of primary and secondary thread emulates the hardware interrupt plus thread scenario. Having them at the same priority can cause starvation issues in some drivers" * tag 'irq-core-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits) genirq: Remove cpumask availability check on kthread affinity setting genirq: Fix interrupt threads affinity vs. cpuset isolated partitions genirq: Prevent early spurious wake-ups of interrupt threads genirq: Use raw_spinlock_irq() in irq_set_affinity_notifier() genirq/manage: Reduce priority of forced secondary interrupt handler genirq/proc: Fix race in show_irq_affinity() genirq: Fix percpu_devid irq affinity documentation perf: arm_pmu: Kill last use of per-CPU cpu_armpmu pointer irqdomain: Kill of_node_to_fwnode() helper genirq: Kill irq_{g,s}et_percpu_devid_partition() irqchip: Kill irq-partition-percpu irqchip/apple-aic: Drop support for custom PMU irq partitions irqchip/gic-v3: Drop support for custom PPI partitions coresight: trbe: Request specific affinities for per CPU interrupts perf: arm_spe_pmu: Request specific affinities for per CPU interrupts perf: arm_pmu: Request specific affinities for per CPU NMIs/interrupts genirq: Add request_percpu_irq_affinity() helper genirq: Allow per-cpu interrupt sharing for non-overlapping affinities genirq: Update request_percpu_nmi() to take an affinity genirq: Add affinity to percpu_devid interrupt requests ...