linux/kernel/irq
Linus Torvalds ac7473a179 Updates for the interrupt subsystem:
- Core:
 
     - Provide a new mechanism to create interrupt domains. The existing
       interfaces have already too many parameters and it's a pain to expand
       any of this for new required functionality.
 
       The new function takes a pointer to a data structure as argument. The
       data structure combines all existing parameters and allows for easy
       extension.
 
       The first extension for this is to handle the instantiation of
       generic interrupt chips at the core level and to allow drivers to
       provide extra init/exit callbacks.
 
       This is necessary to do the full interrupt chip initialization before
       the new domain is published, so that concurrent usage sites won't see
       a half initialized interrupt domain. Similar problems exist on
       teardown.
 
       This has turned out to be a real problem due to the deferred and
       parallel probing which was added in recent years.
 
       Handling this at the core level allows to remove quite some accrued
       boilerplate code in existing drivers and avoids horrible workarounds
       at the driver level.
 
     - The usual small improvements all over the place
 
   - Drivers
 
     - Add support for LAN966x OIC and RZ/Five SoC
 
     - Split the STM ExtI driver into a microcontroller and a SMP version to
       allow building the latter as a module for multi-platform kernels.
 
     - Enable MSI support for Armada 370XP on platforms which do not support
       IPIs.
 
     - The usual small fixes and enhancements all over the place.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmaVJbUTHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoXTuD/9Tc9BhY5CW7HQkdPQu2Db1O+esprkQ
 Uo9lMpTTpPiy9btg4LONzLf4mjbufZpyKBxkRWoZFO0Zj5q4UE9NZYh7EcxrF5Tl
 CIFJmyteLsYuOyCmPrtSDSovonXjQKYBE3u2LVJNNkwEkhYbYW9sqIKeT8nneLv6
 53gd28ESFUEUjHNTblw/eXviweyUKSXc0qyg+3hgZQPMoh9RkdkEPvyaw9Y/s5Ce
 FelLLxzMqX86dR2TJMLqiaGiMpUu/kl+Yz2m5c77TwA2D68qjhHywbtKtlH7b3C6
 LMHu2dMrrKSJrLL8roVIYJdHAd1TKWVdnYhqv9WBHFTu1sDuztpR44mewbo8exUU
 L2RgVSGYNmeFC3p4wztWYSQfIVa9uOg7+TnJJdh7G0jLIeKM/TbufWqDAJAuoVPL
 QhGbZ5xNbZJZ8bvhhItjxpRN/kPs44p3mUGyRJBQzm+mDN118bqfmQzhLcwRbfE2
 smp73SQzg9alG2rGdNVEqkKmp8zhg2Crx2VCeVdgbeOxWQRet9zLWcp4FfCEUE9e
 eK3iEi8z+rmwafaf3rsxYdrdIRLaUmcni0v7R/16cJH/Cs7bU3Re8XyGhevo3lsO
 pJiP5wZDxbckwXNpLm3S/qPDW7vSCnuFPF7QmOvC3a70PsD+E4NKUgiwJuHtn/ZV
 pFBKzbQgCsowQA==
 =QCRH
 -----END PGP SIGNATURE-----

Merge tag 'irq-core-2024-07-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull interrupt subsystem updates from Thomas Gleixner:
 "Core:

   - Provide a new mechanism to create interrupt domains. The existing
     interfaces have already too many parameters and it's a pain to
     expand any of this for new required functionality.

     The new function takes a pointer to a data structure as argument.
     The data structure combines all existing parameters and allows for
     easy extension.

     The first extension for this is to handle the instantiation of
     generic interrupt chips at the core level and to allow drivers to
     provide extra init/exit callbacks.

     This is necessary to do the full interrupt chip initialization
     before the new domain is published, so that concurrent usage sites
     won't see a half initialized interrupt domain. Similar problems
     exist on teardown.

     This has turned out to be a real problem due to the deferred and
     parallel probing which was added in recent years.

     Handling this at the core level allows to remove quite some accrued
     boilerplate code in existing drivers and avoids horrible
     workarounds at the driver level.

   - The usual small improvements all over the place

  Drivers:

   - Add support for LAN966x OIC and RZ/Five SoC

   - Split the STM ExtI driver into a microcontroller and a SMP version
     to allow building the latter as a module for multi-platform
     kernels

   - Enable MSI support for Armada 370XP on platforms which do not
     support IPIs

   - The usual small fixes and enhancements all over the place"

* tag 'irq-core-2024-07-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits)
  irqdomain: Fix the kernel-doc and plug it into Documentation
  genirq: Set IRQF_COND_ONESHOT in request_irq()
  irqchip/imx-irqsteer: Handle runtime power management correctly
  irqchip/gic-v3: Pass #redistributor-regions to gic_of_setup_kvm_info()
  irqchip/bcm2835: Enable SKIP_SET_WAKE and MASK_ON_SUSPEND
  irqchip/gic-v4: Make sure a VPE is locked when VMAPP is issued
  irqchip/gic-v4: Substitute vmovp_lock for a per-VM lock
  irqchip/gic-v4: Always configure affinity on VPE activation
  Revert "irqchip/dw-apb-ictl: Support building as module"
  Revert "Loongarch: Support loongarch avec"
  arm64: Kconfig: Allow build irq-stm32mp-exti driver as module
  ARM: stm32: Allow build irq-stm32mp-exti driver as module
  irqchip/stm32mp-exti: Allow building as module
  irqchip/stm32mp-exti: Rename internal symbols
  irqchip/stm32-exti: Split MCU and MPU code
  arm64: Kconfig: Select STM32MP_EXTI on STM32 platforms
  ARM: stm32: Use different EXTI driver on ARMv7m and ARMv7a
  irqchip/stm32-exti: Add CONFIG_STM32MP_EXTI
  irqchip/dw-apb-ictl: Support building as module
  irqchip/riscv-aplic: Simplify the initialization code
  ...
2024-07-22 13:52:05 -07:00
..
affinity.c genirq/affinity: Move group_cpus_evenly() into lib/ 2023-01-17 18:50:06 +01:00
autoprobe.c genirq: Delay deactivation in free_irq() 2019-07-03 10:12:28 +02:00
chip.c genirq: Prevent nested thread vs synchronize_hardirq() deadlock 2023-07-31 17:24:22 +02:00
cpuhotplug.c genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline 2024-05-23 21:51:50 +02:00
debug.h
debugfs.c genirq/debugfs: Print irqdomain flags as human-readable strings 2024-06-03 12:24:51 +02:00
devres.c irqdomain: Add a resource managed version of irq_domain_instantiate() 2024-06-17 15:48:14 +02:00
dummychip.c irq: Fix typos in comments 2021-03-22 04:23:14 +01:00
generic-chip.c genirq/generic_chip: Introduce init() and exit() hooks 2024-06-17 15:48:14 +02:00
handle.c irq: remove unused flags argument from __handle_irq_event_percpu() 2022-01-07 00:25:25 +01:00
internals.h genirq/debugfs: Print irqdomain flags as human-readable strings 2024-06-03 12:24:51 +02:00
ipi-mux.c genirq/ipi-mux: Use irq_domain_alloc_irqs() 2023-02-06 17:21:15 +00:00
ipi.c genirq/ipi: Fix NULL pointer deref in irq_data_get_affinity_mask() 2023-02-20 13:53:41 +01:00
irq_sim.c genirq/irq_sim: add an extended irq_sim initializer 2024-07-04 09:25:59 +02:00
irqdesc.c genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after() 2024-05-24 12:49:35 +02:00
irqdomain.c irqdomain: Remove __irq_domain_add() 2024-06-17 15:48:15 +02:00
Kconfig genirq: Provide a snapshot mechanism for interrupt statistics 2024-04-12 17:08:05 +02:00
Makefile genirq: Add mechanism to multiplex a single HW IPI 2023-02-05 10:57:55 +00:00
manage.c task_work: s/task_work_cancel()/task_work_cancel_func()/ 2024-07-09 13:26:31 +02:00
matrix.c genirq/matrix: Dynamic bitmap allocation 2024-02-23 10:18:44 +01:00
migration.c genirq: Fix typos and misspellings in comments 2021-03-16 15:08:29 +01:00
msi.c genirq/msi: Add MSI allocation helper and export MSI functions 2024-04-23 14:27:52 -06:00
pm.c genirq/PM: Unexport {suspend,resume}_device_irqs() 2022-06-13 12:27:37 +02:00
proc.c genirq/proc: Simplify irqdesc::kstat_irqs handling further 2024-06-03 11:48:29 +02:00
resend.c genirq: Reuse irq_is_nmi() 2024-04-24 20:42:57 +02:00
settings.h genirq: Add a IRQF_NO_DEBUG flag 2021-05-17 20:01:35 +02:00
spurious.c genirq: Disable irqfixup/poll on PREEMPT_RT. 2021-09-19 23:01:15 +02:00
timings.c Updates to the interrupt core and driver subsystems: 2021-08-30 14:38:37 -07:00