Irqd_irq_inprogress

Author: btrx

August undefined, 2024

http://www.wowotech.net/irq_subsystem/irq_handle_procedure.html/comment-page-2 WebJul 27, 2024 · Must be set to the constant value IRQType_Range. One bit flag from each of the flag sets described in the following table. The IRQ line cannot be shared. The IRQ line can be shared. Bitmask for the bits within IRQD_Flags that specify the sharing value. The IRQ line is level-triggered. The IRQ line is edge-triggered.

LKML: Shanker Donthineni: [PATCH] KVM: arm64: vgic: Fix soft …

WebName:handle_nested_irq - Handle a nested irq from a irq thread*@irq: the interrupt number* Handle interrupts which are nested into a threaded interrupt* handler. The handler … WebMay 10, 2024 · This might * give the wrong answer due to the lack of memory barriers. */ while (irqd_irq_inprogress (& desc-> irq_data)) cpu_relax (); /* Ok, that indicated we're done: double-check carefully. */ raw_spin_lock_irqsave (& desc-> lock, flags); inprogress = irqd_irq_inprogress (& desc-> irq_data); /* * If requested and supported, check at the ... havanna winter without makeup

handle_nested_irq

Web[tip:x86/apic] x86, uv: Use hierarchy irqdomain to manage UV interrupts From: tip-bot for Jiang Liu Date: Wed Nov 26 2014 - 18:12:30 EST Next message: tip-bot for Jiang Liu: "[tip:x86/apic] x86, irq: Normalize x86 irq_chip name" Previous message: Heiko Stübner: "Re: [PATCH] clk: rockchip: rk3288 export i2s0_clkout for use in DT" In reply to: Jiang Liu: … WebJan 17, 2024 · irqd_set(&desc->irq_data, IRQD_IRQ_INPROGRESS); raw_spin_unlock(&desc->lock); ret = handle_irq_event_percpu(desc); raw_spin_lock(&desc->lock); irqd_clear(&desc … WebMar 24, 2024 · irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS); return ret; } It took ~3 ms for this raw_spin_lock() to lock. During this time irq_finalize_oneshot() from … havan rastrear

C++ (Cpp) irq_to_desc Examples - HotExamples

kernel/irq/manage.c - Linux source code (v5.4.44) - Bootlin

Webirqd_irq_inprogress()是判断irq是否设置了IRQD_IRQ_INPROGRESS 标志位。标识hardirq thread正在执行，IRQD_IRQ_INPROGRESS在handle_irq_event()执行开始设置，等到handle_irq_event_percpu()执行完毕之后，同样在handle_irq_event()之后清除。因此hardirq handler执行结束之前系统不会睡眠。 WebThis enables support. * for modern forms of interrupt handlers, which handle the flow. * details in hardware, transparently. */. void handle_fasteoi_nmi ( struct irq_desc *desc) {. struct irq_chip *chip = irq_desc_get_chip (desc); struct irqaction *action = desc-> action; unsigned int irq = irq_desc_get_irq (desc); havan rastreamentoWebThat activation must happen* independently of IRQ_NOAUTOEN. request_irq() can fail* and the callers are supposed to handle* that. enable_irq() of an interrupt requested with* IRQ_NOAUTOEN is not supposed to fail. The activation* keeps it in shutdown mode, it merily associates* resources if necessary and if that's not possible it* fails. boren award essay

"Webirqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS); return ret;} It took ~3 ms for this raw_spin_lock() to lock. During this time irq_finalize_oneshot() from kernel/irq/manage.c locks and unlocks the same raw spin lock more than 1000 times: static void irq_finalize_oneshot(struct irq_desc *desc, struct irqaction *action) " - Irqd_irq_inprogress

Irqd_irq_inprogress

indicates whether irqd_set_trigger_type has been called, and

WebThese are the top rated real world C++ (Cpp) examples of irq_to_desc extracted from open source projects. You can rate examples to help us improve the quality of examples. … WebMar 24, 2024 · > irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS); > return ret; > } > > It took ~3 ms for this raw_spin_lock() to lock. That's quite a large indeed. > During this time irq_finalize_oneshot() from kernel/irq/manage.c locks and > unlocks the same raw spin lock more than 1000 times: > > static void irq_finalize_oneshot(struct irq_desc *desc,

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WebMay 10, 2024 · manage.c - kernel/irq/manage.c - Linux source code (v6.2.5) - Bootlin. Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux … http://www.bricktou.com/kernel/irq/chiphandle_nested_irq_en.html

WebSign in. android / kernel / omap / glass-omap-xrv87 / . / kernel / irq / manage.c. blob: 3d1bbbcc2923df794ec1cc70b409b5390af919d6 [] [] [] WebAn irq_domain to manage mapping is preferred over interrupt controller drivers open coding their own reverse mapping scheme. irq_domain also implements translation from an …

Web> irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS); > return ret; >} > > It took ~3 ms for this raw_spin_lock() to lock. That's quite a large indeed. > During this time irq_finalize_oneshot() from kernel/irq/manage.c locks and > unlocks the same raw spin lock more than 1000 times: > > static void irq_finalize_oneshot(struct irq_desc *desc ... WebThe function __synchronize_hardirq() has been waiting for IRQD_IRQ_INPROGRESS to be cleared forever as per the current implementation. CPU stuck here for a long time leads to soft lockup: while (irqd_irq_inprogress(&desc->irq_data)) cpu_relax(); Call trace from the lockup CPU: [ 87.238866] watchdog: BUG: soft lockup - CPU#37 stuck for 23s!

WebJan 17, 2024 · The irqd_set_activated() execution path is reading memory 'state_use_accessors' in between set & clear of IRQD_IRQ_INPROGRESS state change and …

WebApr 28, 2015 · 设置中断描述符的状态为IRQD_IRQ_INPROGRESS：在SMP系统中，同一个中断信号有可能发往多个CPU，但是中断处理只应该处理一次，所以设置状态 … havan pascoaWebwhile (irqd_irq_inprogress (&desc->irq_data)) cpu_relax (); /* Ok, that indicated we're done: double-check carefully. */ raw_spin_lock_irqsave (&desc->lock, flags); inprogress = irqd_irq_inprogress (&desc->irq_data); /* * If requested and supported, check at the chip whether it * is in flight at the hardware level, i.e. already pending havan playstation 5WebJun 26, 2014 · irq_desc [irq].status & (IRQ_DISABLED IRQ_INPROGRESS) Yields a true result when either of the IRQ_DISABLED or IRQ_INPROGRESS bits is set in the .status … havan noticiaWebApr 2, 2015 · Kernel.org Bugzilla – Bug 96051 key trace event symbols not exported Last modified: 2024-01-10 15:47:22 UTC boren awards programWeb* IRQD_IRQ_MASKED - Masked state of the interrupt * IRQD_IRQ_INPROGRESS - In progress state of the interrupt * IRQD_WAKEUP_ARMED - Wakeup mode armed * IRQD_FORWARDED_TO_VCPU - The interrupt is forwarded to a VCPU * IRQD_AFFINITY_MANAGED - Affinity is auto-managed by the kernel * IRQD_IRQ_STARTED … boren awards iieWebwhile (irqd_irq_inprogress (&desc-> irq_data)) cpu_relax (); /* Ok, that indicated we're done: double-check carefully. */ raw_spin_lock_irqsave (&desc-> lock, flags); inprogress = … boren awards twitterWebThe function __synchronize_hardirq() has been waiting for IRQD_IRQ_INPROGRESS to be cleared forever as per the current implementation. CPU stuck here for a long time leads to soft lockup: while (irqd_irq_inprogress(&desc->irq_data)) cpu_relax(); Call trace from the lockup CPU: [ 87.238866] watchdog: BUG: soft lockup - CPU#37 stuck for 23s! havan play 4