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
  ...

2 files changed, 148 insertions, 1 deletions

diff --git a/arch/arm/boot/dts/st/stm32mp131.dtsi b/arch/arm/boot/dts/st/stm32mp131.dtsi
index ecfa120827ba..6704ceef284d 100644
--- a/arch/arm/boot/dts/st/stm32mp131.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp131.dtsi
@@ -783,10 +783,82 @@
 		};
 
 		exti: interrupt-controller@5000d000 {
-			compatible = "st,stm32mp13-exti", "syscon";
+			compatible = "st,stm32mp1-exti", "syscon";
 			interrupt-controller;
 			#interrupt-cells = <2>;
 			reg = <0x5000d000 0x400>;
+			interrupts-extended =
+				<&intc GIC_SPI 6   IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_0 */
+				<&intc GIC_SPI 7   IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 8   IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 9   IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 10  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 24  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 65  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 66  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 67  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 68  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 41  IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_10 */
+				<&intc GIC_SPI 43  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 77  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 78  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 1   IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<&intc GIC_SPI 3   IRQ_TYPE_LEVEL_HIGH>,
+				<0>,						/* EXTI_20 */
+				<&intc GIC_SPI 32  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 34  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 73  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 93  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 38  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 39  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 40  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 72  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 53  IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_30 */
+				<&intc GIC_SPI 54  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 83  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 84  IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,						/* EXTI_40 */
+				<0>,
+				<0>,
+				<0>,
+				<&intc GIC_SPI 96  IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<&intc GIC_SPI 92  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 116 IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<&intc GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_50 */
+				<0>,
+				<&intc GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,						/* EXTI_60 */
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<&intc GIC_SPI 63  IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<&intc GIC_SPI 98  IRQ_TYPE_LEVEL_HIGH>;	/* EXTI_70 */
 		};
 
 		syscfg: syscon@50020000 {
diff --git a/arch/arm/boot/dts/st/stm32mp151.dtsi b/arch/arm/boot/dts/st/stm32mp151.dtsi
index 16bd6eee32b4..90c5c72c87ab 100644
--- a/arch/arm/boot/dts/st/stm32mp151.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp151.dtsi
@@ -176,6 +176,81 @@
 			interrupt-controller;
 			#interrupt-cells = <2>;
 			reg = <0x5000d000 0x400>;
+			interrupts-extended =
+				<&intc GIC_SPI 6   IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_0 */
+				<&intc GIC_SPI 7   IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 8   IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 9   IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 10  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 23  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 64  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 65  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 66  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 67  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 40  IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_10 */
+				<&intc GIC_SPI 42  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 76  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 77  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 1   IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<&intc GIC_SPI 3   IRQ_TYPE_LEVEL_HIGH>,
+				<0>,						/* EXTI_20 */
+				<&intc GIC_SPI 31  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 33  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 72  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 95  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 37  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 38  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 39  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 71  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 52  IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_30 */
+				<&intc GIC_SPI 53  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 82  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 83  IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,						/* EXTI_40 */
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<&intc GIC_SPI 151 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 93  IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<&intc GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_50 */
+				<0>,
+				<&intc GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 141 IRQ_TYPE_LEVEL_HIGH>,
+				<&intc GIC_SPI 135 IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,
+				<0>,						/* EXTI_60 */
+				<&intc GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<0>,
+				<&intc GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<0>,
+				<&intc GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
+				<0>,
+				<&intc GIC_SPI 62  IRQ_TYPE_LEVEL_HIGH>,	/* EXTI_70 */
+				<0>,
+				<0>,
+				<&intc GIC_SPI 129 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
 		syscfg: syscon@50020000 {