linux/arch
Linus Torvalds 2e973d4882 Updates for interrupt chip drivers:
- Remove the futile attempts to cleanup resources when the probing of the
     main interrupt chip fails for SiFIVE/PLIC devices. If that probe fails
     the system will stall immediately afterwards in the boot process
     without reaching a state where the error could be diagnosed. The lack
     of resource cleanup led to a frenzy of AI detected/assisted "fixes"
     which just make the code pretend to be correct for no value.
 
     Remove the existing half baked cleanup and immediately panic the
     machine when the probe fails. That's far more useful than letting it
     proceed and stall out a millisecond later with no information about the
     root cause.
 
   - A series of fixes for the ARM GIC-V3 driver addressing a potential
     double free, a bitmask overrun on 32-bit ARM and a OF node leak.
 
   - Automatically set the IRQ_DOMAIN_FLAG_DESTROY_GC when a interrupt
     domain is created that also allocates the generic interrupt chip during
     domain creation. That removes the requirement for manually setting the
     flag in the domain creation info structure when it contains a valid
     entry for allocating the generic interrupt chip. Remove the therefore
     redundant setters of IRQ_DOMAIN_FLAG_DESTROY_GC in the existing
     drivers.
 
   - Add support for Annapurna Labs FIC version 2 and 3 and implement
     affinity control for the demultiplexed interrupts by utilizing the
     recently merged interrupt redirection infrastructure.
 
   - Convert the ACPI device ID structures to named initializers
 
   - Consolidate the IPI related constants for RISC-V interrupt controllers
 
   - Add support for Qualcomm Purwa SoC interrupt chip and consolidate the
     workaround for the previous version in Hamoa SoCs.
 
   - The usual small fixes and improvements all over the place
 -----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCgAuFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmrX0aEQHHRnbHhAa2Vy
 bmVsLm9yZwAKCRCmGPVMDXSYoatNEACU5naAkM1k+hTaPXSRcd/JpizpVrM5jpM5
 tOGe5ml6h9Mda+9uFSwR5rOF5kHXofZh70E97zR7C4jD7JNcuXPqgFg202mKfcjg
 ZWcuYKOR5DaAmiNgpXYPyK9UpXQ9YOPwE7MMpv7sv5yfYDVWFzVEOSb5F294D+gK
 vuQLY9jeysDWNRSuXD9Zo8pBoXJZBCMvTWrJJO4fdh8ZxIWJJv35nRoAgYs8ZlWq
 hF1om+Ei8KbftW9ox/ZJ+nomM6UG+H6iw8+7jZ/mQ9kadRExCNNoFF2NDfH/XFX2
 +o+2HVmXW5KTCSmy28aPLBTZojeAoEGvqI5IXu8bKYR6IfYrzdZIe+9UuabPg0lO
 NWOFj1wGbUD84hoo0gI9f1MsTORdNBqccG132MvDKzOyMYQ8cbOEsk44QTjLC+kT
 A46iM1eFC43g2YWpl9qZRKmq+PomCwMwBmjCKNPzG1a24iUzeDdGSs+Es2tNzlQt
 MVPXGHzgBfXb1thEP/28nBpEnAJ6XyXaXvIvp0GcSVdbTmT3MrkEOb0YmI1QUyot
 FRM9WVpy9X0XNo4yqxKAFGVlmGeR9XKMYgU3bgaZ7CgZMe507MAjTGU44mk+LjKa
 Ndyl7ztYrrcf3GMoe1IIbfKI6bcUZ588d6VPLjH8BKCd2ZqRDfnIPNX+oIpoomd3
 FxacuEXq4Q==
 =ma3a
 -----END PGP SIGNATURE-----

Merge tag 'irq-drivers-2026-10-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq chip driver updates from Thomas Gleixner:
 "Updates for interrupt chip drivers:

   - Remove the futile attempts to cleanup resources when the probing of
     the main interrupt chip fails for SiFIVE/PLIC devices. If that
     probe fails the system will stall immediately afterwards in the
     boot process without reaching a state where the error could be
     diagnosed. The lack of resource cleanup led to a frenzy of AI
     detected/assisted "fixes" which just make the code pretend to be
     correct for no value.

     Remove the existing half baked cleanup and immediately panic the
     machine when the probe fails. That's far more useful than letting
     it proceed and stall out a millisecond later with no information
     about the root cause.

   - A series of fixes for the ARM GIC-V3 driver addressing a potential
     double free, a bitmask overrun on 32-bit ARM and a OF node leak.

   - Automatically set the IRQ_DOMAIN_FLAG_DESTROY_GC when a interrupt
     domain is created that also allocates the generic interrupt chip
     during domain creation. That removes the requirement for manually
     setting the flag in the domain creation info structure when it
     contains a valid entry for allocating the generic interrupt chip.
     Remove the therefore redundant setters of
     IRQ_DOMAIN_FLAG_DESTROY_GC in the existing drivers.

   - Add support for Annapurna Labs FIC version 2 and 3 and implement
     affinity control for the demultiplexed interrupts by utilizing the
     recently merged interrupt redirection infrastructure.

   - Convert the ACPI device ID structures to named initializers

   - Consolidate the IPI related constants for RISC-V interrupt
     controllers

   - Add support for Qualcomm Purwa SoC interrupt chip and consolidate
     the workaround for the previous version in Hamoa SoCs.

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

* tag 'irq-drivers-2026-10-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (61 commits)
  irqchip/al-fic: Support per-child affinity via interrupt redirection
  irqchip/al-fic: Add support for FIC v3
  irqchip/al-fic: Support error and fatal outputs and FIC v2
  dt-bindings: interrupt-controller: amazon,al-fic: Add mask selection
  irqchip/al-fic: Switch to shared parent interrupt
  irqchip/al-fic: Keep the device_node instead of a cached name string
  irqchip/al-fic: Use %pOF and raise init log level
  irqchip/al-fic: Use %pe to print init error
  irqchip/al-fic: Fix coding style issues
  irqchip: Use named initializers for acpi_device_id
  irqchip/gic-v5: Fix standalone IRSes OF probe
  dt-bindings: interrupt-controller: gicv5: Relax IRS properties constraints
  irqchip/renesas-rzv2h: Preserve TIEN state in rzv2h_tint_set_type()
  irqchip/loongson-eiointc: Use pa_to_nid() rather than hard-code
  irqchip/riscv-imsic: Expose the fwnode via the global config
  irqchip/meson-gpio: Allow the GPIO interrupts to wake the system
  irqchip/gic-v3: Ensure change to DS is visible
  irqchip/mips-gic: Transfer interrupt mask state across clusters
  irqchip/mips-gic: Fix recursive acquisition of gic_lock in gic_set_affinity()
  irqchip/mips-gic: Fix unbalanced cm_core_lock in for_each_online_cpu_gic()
  ...
2026-10-21 11:16:50 -10:00
..
alpha Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
arc Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
arm Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
arm64 Updates for interrupt chip drivers: 2026-10-21 11:16:50 -10:00
csky Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
hexagon hexagon: use scoped user access for the signal frame 2026-10-20 08:45:39 -10:00
loongarch Perf events updates: 2026-10-20 13:00:41 -10:00
m68k m68k: defconfig: Enable ATARI_SVETHLANA and ETHOC 2026-09-27 16:21:49 +02:00
microblaze Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
mips Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
nios2 Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
openrisc openrisc: use get_kernel_nofault() in show_registers() 2026-10-20 09:29:11 -10:00
parisc Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
powerpc Merge __{get,put}_user() removal branch 2026-10-21 07:19:30 -10:00
riscv Updates for interrupt chip drivers: 2026-10-21 11:16:50 -10:00
s390 Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
sh Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
sparc Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
um - Document and cleanup the signal frame handling with the goal to allow 2026-10-20 11:03:51 -10:00
x86 Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
xtensa Kbuild / Kconfig updates for 7.4 2026-10-21 10:45:44 -10:00
.gitignore
Kconfig sched: dynamic: Remove HAVE_PREEMPT_DYNAMIC_{CALL,KEY} 2026-09-02 09:37:23 +02:00