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2020-10-25irqchip/sifive-plic: Fix broken irq_set_affinity() callbackGreentime Hu1-1/+1
An interrupt submitted to an affinity change will always be left enabled after plic_set_affinity() has been called, while the expectation is that it should stay in whatever state it was before the call. Preserving the configuration fixes a PWM hang issue on the Unleashed board. [ 919.015783] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 919.020922] rcu: 0-...0: (0 ticks this GP) idle=7d2/1/0x4000000000000002 softirq=1424/1424 fqs=105807 [ 919.030295] (detected by 1, t=225825 jiffies, g=1561, q=3496) [ 919.036109] Task dump for CPU 0: [ 919.039321] kworker/0:1 R running task 0 30 2 0x00000008 [ 919.046359] Workqueue: events set_brightness_delayed [ 919.051302] Call Trace: [ 919.053738] [<ffffffe000930d92>] __schedule+0x194/0x4de [ 982.035783] rcu: INFO: rcu_sched detected stalls on CPUs/tasks: [ 982.040923] rcu: 0-...0: (0 ticks this GP) idle=7d2/1/0x4000000000000002 softirq=1424/1424 fqs=113325 [ 982.050294] (detected by 1, t=241580 jiffies, g=1561, q=3509) [ 982.056108] Task dump for CPU 0: [ 982.059321] kworker/0:1 R running task 0 30 2 0x00000008 [ 982.066359] Workqueue: events set_brightness_delayed [ 982.071302] Call Trace: [ 982.073739] [<ffffffe000930d92>] __schedule+0x194/0x4de [..] Fixes: bb0fed1c60cc ("irqchip/sifive-plic: Switch to fasteoi flow") Signed-off-by: Greentime Hu <greentime.hu@sifive.com> [maz: tidy-up commit message] Signed-off-by: Marc Zyngier <maz@kernel.org> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20201020081532.2377-1-greentime.hu@sifive.com
2020-10-25irqchip/stm32-exti: Add all LP timer exti direct events supportFabrice Gasnier1-0/+4
Add all remaining LP timer exti direct events, e.g. for LP Timer 2 to 5. LP timer 1 is already listed (e.g. exti 47). Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/1602859219-15684-2-git-send-email-fabrice.gasnier@st.com
2020-10-25irqchip/bcm2836: Fix missing __init annotationMarc Zyngier1-1/+1
bcm2836_arm_irqchip_smp_init() calls set_smp_ipi_range(), which has an __init annotation. Make sure the caller has the same annotation. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-10-16irqchip/mips: Drop selection of IRQ_DOMAIN_HIERARCHYMarc Zyngier1-2/+0
Now that GENERIC_IRQ_IPI selects IRQ_DOMAIN_HIERARCHY, there is no need to have this conditional select for IRQ_MIPS_CPU. Similarily, MIPS_GIC only needs selecting GENERIC_IRQ_IPI. Suggested-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-10-15irqchip/mst: Make mst_intc_of_init staticMarc Zyngier1-2/+2
mst_intc_of_init has no external caller, so let's make it static. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Marc Zyngier <maz@kernel.org>
2020-10-15irqchip/mst: MST_IRQ should depend on ARCH_MEDIATEK or ARCH_MSTARV7Geert Uytterhoeven1-0/+1
The MStar interrupt controller is only found on MStar, SigmaStar, and Mediatek SoCs. Hence add dependencies on ARCH_MEDIATEK and ARCH_MSTARV7, to prevent asking the user about the MStar interrupt controller driver when configuring a kernel without support for MStar, SigmaStar, and Mediatek SoCs. Fixes: ad4c938c92af9130 ("irqchip/irq-mst: Add MStar interrupt controller support") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Marc Zyngier <maz@kernel.org> Acked-by: Daniel Palmer <daniel@thingy.jp> Link: https://lore.kernel.org/r/20201014131703.18021-1-geert+renesas@glider.be
2020-10-15genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHYMarc Zyngier1-0/+1
kernel/irq/ipi.c otherwise fails to compile if nothing else selects it. Fixes: 379b656446a3 ("genirq: Add GENERIC_IRQ_IPI Kconfig symbol") Reported-by: Pavel Machek <pavel@ucw.cz> Tested-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20201015101222.GA32747@amd