DECLARE_COMPLETION_ONSTACK(done);structtask_struct*task;structkthread_create_info*create=kmalloc(sizeof(*create),GFP_KERNEL);if(!create)returnERR_PTR(-ENOMEM); create->threadfn = threadfn; create->data = data; create->node = node; create->done = &done; spin_lock(&kthread_create_lock)...
cpumask: powerpc: Introduce cpumask_of_{node,pcibus} to replace {node,pcibus}_to_cpumask Impact: New APIs The old node_to_cpumask/node_to_pcibus returned a cpumask_t: these return a pointer to a struct cpumask. Part of removing cpumasks from the stack. (Also replaces powerpc int...
// file: kernel/smp.c/* Setup configured maximum number of CPUs to activate */unsignedintsetup_max_cpus=NR_CPUS; 指定了命令行参数maxcpus后,通过参数处理函数maxcpus(),将setup_max_cpus设置为指定的值。 // file: kernel/smp.cstaticint__initmaxcpus(char*str){get_option(&str,&setup_max_cpus);...
staticvoid__init of_parse_and_init_cpus(void) {structdevice_node *dn; for_each_node_by_type(dn,"cpu") { u64 hwid=of_get_cpu_mpidr(dn);if(hwid ==INVALID_HWID)gotonext;if(is_mpidr_duplicate(cpu_count, hwid)) { pr_err("%pOF: duplicate cpu reg properties in the DT\n", dn);...
* one of the first device. This works as long as we have this * misfeature only on x86 (lapic) */td = &per_cpu(tick_cpu_device,cpumask_first(mask)); td->evtdev->broadcast(mask); } } 开发者ID:AudioGod,项目名称:MediaTek-HelioX10-Kernel,代码行数:28,代码来源:tick-broadcast.c ...
#define to_cpumask(bitmap) \((struct cpumask *)(1 ? (bitmap) \: (void *)sizeof(__check_is_bitmap(bitmap))) 可见,在运行时,该三目运算符永远返回bitmap,然后直接强制转换为struct cpumask *型;那么三目运算符后面的式子是干嘛的呢?先看__check_is_bitmap()函数定义: static...
Source Code:include\linux\cpumask.hCreate Date:2022-07-27 06:38:52 Last Modify:2020-03-12 14:18:49Copyright©Brick 首页函数Tree 函数名称:设置CPU信息 返回类型:void 参数: 类型参数名称 unsigned intcpu struct cpumask *dstp 源代码转换工具 ...
还有一个实用的函数来获取当前CPU的核心数量: 1 2 3 SYSTEM_INFO info; GetSystemInfo(&info); printf("Number of processors: %d.\n", info.dwNumberOfProcessors); 输出的是逻辑核心数量,比如i3处理器就是双核心四线程,输出4。i5处理器是四核心四线程,输出也是4。
A thread affinity mask must be a proper subset of the process affinity mask for the containing process of a thread. A thread is only allowed to run on the processors its process is allowed to run on. 通过调用SetThreadAffinityMask,就能为各个线程设置亲缘性屏蔽: ...
首页函数Tree 注解内核,赢得工具下载SCCTEnglish 函数名称:清空全部CPU信息 返回类型:void 参数: 类型参数名称 struct cpumask *dstp 源代码转换工具 开放的插件接口X 支持:c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现:逻辑报告 代码生成和批量转换代码...