busy_delay_init(BOARD_OSC0_HZ);// interrupts initcpu_irq_disable(); INTC_init_interrupts(); INTC_register_interrupt(&interrupt_J3, AVR32_GPIO_IRQ_3, AVR32_INTC_INT1);cpu_irq_enable();// stdio initstdio_usb_init(&CONFIG_USART_IF);// Specify that stdout and stdin should not be buf...
you can't call disable_irq()/enable_irq() unless you have registered that irq. However, ide-probe.c::probe_hwif() contains the following: /* * We must always disable IRQ, as probe_for_drive will assert IRQ, but * we'll install our IRQ driver much later... */ irqd = hwif->ir...
Enable irqbalance per default. Describe alternatives you've considered At least creating some performance documentation (like the one on the arch wiki). Priorities Add 👍 toissues you find important.
preempt_schedule()为什么要求CPU本地中断为开启状态呢? 我的理解是这样的:假设进程A在CPU2上执行local_irq_disable()关掉CPU2的本地中断后,在未调用local_irq_enable()之前,被CPU2的进程B抢占执行,那么此时CPU2的本地中断什么时候开启,我们是不确定的。因为从设计上我们需要确保【谁关闭了中断,那么就由谁来开启...
ARM64 linux kernel中local_irq_disable()、local_irq_enable()的原理,程序员大本营,技术文章内容聚合第一站。
local_irq_disable(); early_boot_irqs_disabled = true; /* * Interrupts are still disabled. Do necessary setups, then * enable them */ tick_init(); boot_cpu_init(); page_address_init(); printk(KERN_NOTICE "%s", linux_banner); ...
bits_per_sample, swap_channels, callback, callback_opt, pba_hz);/* Register a interrupt service routine for the ABDAC channel of * the PDCA */irq_register_handler(tpa6130_abdac_tx_pdca_int_handler, TPA6130_ABDAC_PDCA_IRQ,1);
local_irq_save(flags); rec.ip = ip; rec.parent_ip = parent_ip; pstore_ftrace_encode_cpu(&rec, raw_smp_processor_id()); psinfo->write_buf(PSTORE_TYPE_FTRACE, 0, NULL, 0, (void *)&rec, sizeof(rec), psinfo); local_irq_restore(flags); } static struct ftrace_ops pstore_ftrace_...
# TASK-PID CPU# ||| TIMESTAMP FUNCTION # | | | ||| | | irq/29-AMD-Vi-2740 [005] ... 253283.601523: kvm_avic_ga_log: vmid=33, vcpuid=8 irq/29-AMD-Vi-2740 [005] ... 253283.601918: kvm_avic_ga_log: vmid=33, vcpuid=8 irq/29...
x86/cpu/amd: Make the NODEID_MSR union actually work x86/cpu/amd: Make the CPUID 0x80000008 parser correct Muhammad Usama Anjum: iommufd: Add missing IOMMUFD_DRIVER kconfig for the selftest fs/proc/task_mmu.c: add_to_pagemap: remove useless parameter addr ...