Irqd_irq_inprogress

Author: lebl

August undefined, 2024

WebSign in. android / kernel / omap / glass-omap-xrv87 / . / kernel / irq / manage.c. blob: 3d1bbbcc2923df794ec1cc70b409b5390af919d6 [] [] [] WebJun 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 …

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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 … Webwhile (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 = … ipr and types

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Webkernel/irq/chip.c · 2760f7adbb6c4e39bd3ae733f56d4ac8fb5e3521 · fstrace / android-kernel-msm-hammerhead-3.4-marshmallow-mr3 · GitLab Linux kernel for Nexus 5 … WebMar 29, 2024 · IRQD_IRQ_INPROGRESS = (1 << 18), IRQD_WAKEUP_ARMED = (1 << 19), IRQD_FORWARDED_TO_VCPU = (1 << 20), + IRQD_DEFAULT_TRIGGER_SET = (1 << 25),}; … Web* handle_fasteoi_irq - irq handler for transparent controllers * @irq: the interrupt number @@ -448,6 +482,8 @@ static inline void preflow_handler(struct irq_desc *desc) { } void … orc 2911.01

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

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http://www.bricktou.com/kernel/irq/chiphandle_nested_irq_en.html 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); ipr assignment agreementWeb[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: … orc 2911

"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 … " - Irqd_irq_inprogress

Irqd_irq_inprogress

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! 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)

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http://visa.lab.asu.edu/gitlab/fstrace/android-kernel-msm-hammerhead-3.4-marshmallow-mr3/blob/2760f7adbb6c4e39bd3ae733f56d4ac8fb5e3521/kernel/irq/chip.c WebLKML Archive on lore.kernel.org help / color / mirror / Atom feed * [RFC PATCH] genirq: introduce handle_fasteoi_edge_irq flow handler @ 2024-03-10 10:14 Yipeng Zou 2024-04-14 11:25 ` Marc Zyngier 0 siblings, 1 reply; 3+ messages in thread From: Yipeng Zou @ 2024-03-10 10:14 UTC (permalink / raw) To: tglx, maz, samuel, oleksandr_tyshchenko, …

WebIRQ, and then ack IRQ (usually associated with mask_ack_irq). Even if the device sends an interrupt request again, the handle_irq_event ends and the irq_inprogress mark is cleared after unmask IRQ. I don't know if other systems like x86 have different behaviors. If you know something, please let me know. 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。

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. * IRQD_IRQ_STARTED - Startup state of the interrupt * IRQD_MANAGED_SHUTDOWN - Interrupt was shutdown due to empty affinity * mask. Applies only to affinity managed irqs. * IRQD_SINGLE_TARGET - IRQ allows only a single affinity target * IRQD_DEFAULT_TRIGGER_SET - Expected trigger already been set * IRQD_CAN_RESERVE - Can use reservation mode

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,

WebJan 19, 2024 · Are there any other possibilities of corrupting IRQD_IRQ_INPROGRESS state bit other than concurrent accesses? I did another experiment, changed the bit manipulation of the IRQD state to atomic operations, the issue is not reproducible. struct irq_common_data ipr authorisation renewalWebThese 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. … ipr authorisedWebApr 2, 2015 · Kernel.org Bugzilla – Bug 96051 key trace event symbols not exported Last modified: 2024-01-10 15:47:22 UTC orc 2917 11WebVDOMDHTMLtml>. manage.c - kernel/irq/manage.c - Linux source code (v5.4.44) - Bootlin. Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the … ipr and right to educationWebThat 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. orc 2919.22Web* 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 … ipr attorney loginWebMay 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 ... orc 2903.13