intsmp_call_function_single(intcpu,void(*func)(void*info),void*info,intretry,intwait);//参数说明cpu 参数是要执行函数的 CPU 核心编号。 func 参数是指向要执行的函数的指针。 info 参数是一个可选的参数指针,可以传递给被调用的函数。 retry 参数指定了在发生错误时重试的次数。如果为0,则不会重试。
fix m68k build failure: tip/kernel/up.c: In function 'smp_call_function_single': tip/kernel/up.c:16: error: dereferencing pointer to incomplete type make[2]: *** [kernel/up.o] Error 1 Signed-off-by: Ingo Molnar <mingo@elte.hu>Loading...
Security Insights Additional navigation options Commit Browse filesBrowse the repository at this point in the history The recent commit:90b5363("sched: Clean up scheduler_ipi()") got smp_call_function_single_async() subtly wrong. Even though it will return -EBUSY when trying to re-use a csd...
我在character设备中有这个代码:如果我在没有smp_call的情况下编译字符设备,一切都正常。如果我调用另一个函数,例如:smp_call_function_single(#Othe CPU#,native_halt()),内核将不会崩溃。但是如果我调用smp_call_function_single(#Othe CPU#,native_safe_halt() 浏览4提问于2018-07-13得票数 1 1回答 避...
SMP_CALL_FUNCTION SMP_CALL_FUNCTION: 将特定的函数在目标 CPU 上运行 内核回调接口: staticinlinevoidarch_send_call_function_single_ipi(int cpu) { externstructplat_smp_ops *mp_ops;/* private */ mp_ops->send_ipi_mask(&cpumask_of_cpu(cpu), SMP_CALL_FUNCTION); ...
SMP_CALL_FUNCTION SMP_CALL_FUNCTION: 将特定的函数在目标 CPU 上运行 内核回调接口: static inline void arch_send_call_function_single_ipi(int cpu) { extern struct plat_smp_ops *mp_ops; /* private */ mp_ops->send_ipi_mask(&cpumask_of_cpu(cpu), SMP_CALL_FUNCTION); ...
smp_call_function_single(cpu, coresight_stop, desc, 1); } } int coresight_enable_cpus(const struct cpumask *cpumask) { int cpu; struct cpumask enable_mask; for_each_cpu(cpu, cpumask) { CoresightDesc *desc = per_cpu_ptr(&coresight_desc, cpu); ...
->arm_smccc_smc(function_id,arg0,arg1,arg2,0,0,0,0,&res)//这个时候x0=function_idx1=arg0,x2=arg1,x3arg2,... ->__arm_smccc_smc() ->SMCCCsmc//arch/arm64/kernel/smccc-call.S ->20.macroSMCCCinstr 21.cfi_startproc 22instr#0//即是smc#0陷入到el3 ...
中断入口函数名是call_前缀加上入口函数的名字,如:apic_timer_interrupt是时钟中断响应函数,对应的入口函数是call_apic_timer_interrupt。SMP系统的中断响应函数通常还需要加上smp_前缀,如smp_apic_timer_interrupt。 Linux中断系统(续) Linux针对IA32的SMP系统定义了五种主要的IPI: 1, CALL_FUNCTION_VECTOR:发往自己...
Theprocnto-smpmanager will also function on a single non-SMP system. With the cost of building a dual-processor Pentium motherboard very nearly the same as a single-processor motherboard, it's possible to deliver cost-effective solutions that can be scaled in the field by the simple addition...