Struct irq_affinity
Webstruct irq_affinity_notify — context for notification of IRQ affinity changes This chapter contains the autogenerated documentation of the structures which are used in the generic IRQ layer. Name. struct irq_data — per irq and irq chip data passed down to chip functions Synopsis struct irq_data { u32 mask; unsigned int irq; unsigned long ...
Struct irq_affinity
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WebThe current implementation of irq_set_affinity () refuses rightfully to route an interrupt to an offline cpu. But there is a special case, where this is actually desired. Some of the ARM SoCs have per cpu timers which require setting the affinity during cpu startup where the cpu is not yet in the online mask. WebMay 10, 2024 · Linux debugging, tracing, profiling & perf. analysis. Check our new training course. with Creative Commons CC-BY-SA
WebDec 19, 2024 · * irq_create_affinity_masks - Create affinity masks for multiqueue spreading * @nvecs: The total number of vectors @@ -452,7 +469,7 @@ irq_create_affinity_masks(unsigned int nvecs, struct irq_affinity *affd) /* Fill out vectors at the beginning that don't need affinity */ for (curvec = 0; curvec < affd->pre_vectors; … Webstruct irq_affinity_desc; enum irqchip_irq_state; /* * IRQ line status. * * Bits 0-7 are the same as the IRQF_* bits in linux/interrupt.h * * IRQ_TYPE_NONE - default, unspecified type * IRQ_TYPE_EDGE_RISING - rising edge triggered * IRQ_TYPE_EDGE_FALLING - falling edge triggered * IRQ_TYPE_EDGE_BOTH - rising and falling edge triggered
WebIn this part we will continue to dive to the interrupt handling and will start with the external hardware interrupt handling. As you can remember, in the previous part we have finished with the trap_init function from the arch/x86/kernel/trap.c and the next step is the call of the early_irq_init function from the init/main.c. Webseparate array of integers and struct irq_affinity contains a pointer to it. This is cumbersome and as the maximum number of interrupt sets is small, there is no reason to have …
WebApr 10, 2024 · affinities containing a mix of online and offline CPUs being passed to the irqchip driver. This means that the irqchip cannot trust the affinity passed down from the core code, which is a bit annoying and requires (at least in theory) all drivers to implement some sort of affinity narrowing.
Webstruct irq_affinity {cpumask_t mask; int irq;} interrupt_data[]; When setting up or tearing down interrupts, each CPU can find which interrupt(s) it needs, and whether it's a PPI or SPI by iterating over the list and checking against a cpumask, and perform the appropriate steps to … kuru barbunya pilaki - nefis yemek tarifleriWebMay 28, 2024 · IRQ is an interrupt request sent from the hardware level to the CPU. While receiving the interrupt, the CPU will switch to interrupt context - Interrupt Service Routine … kuru barbunyaWebApr 2, 2024 · The domain* structure is generally created by the PIC code for a given PIC instance* (though a domain can cover more than one PIC if they have a flat number* model). It's the domain callbacks that are responsible for setting the* irq_chip on a given irq_desc after it's been mapped. kurucam mainzWebProduct (s) This solution is part of Red Hat’s fast-track publication program, providing a huge library of solutions that Red Hat engineers have created while supporting our customers. To give you the knowledge you need the instant it becomes available, these articles may be presented in a raw and unedited form. kuru biberWebconst struct irq_affinity_desc *affinity); int __devm_irq_alloc_descs (struct device *dev, int irq, unsigned int from, unsigned int cnt, int node, struct module *owner, const struct … kuru barbunya tarifiWebMay 21, 2016 · From kernel code you can see that both irq_set_affinity() and irq_set_affinity_hint() are calling __irq_set_affinity() with the same arguments provided. So … kuru barbunya pilakiWebMar 27, 2024 · IRQ affinity controls. Current driver aggregates multiple events/IRQ to single wired IRQ line/VINT thus making it impossible to migrate events selectively. In order to … javier rodriguez tango 2022