本文整理汇总了C++中set_cpu_possible函数的典型用法代码示例。如果您正苦于以下问题：C++ set_cpu_possible函数的具体用法？C++ set_cpu_possible怎么用？C++ set_cpu_possible使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了set_cpu_possible函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: xen_filter_cpu_maps
static void __init xen_filter_cpu_maps(void)
{
int i, rc;
unsigned int subtract = 0;
if (!xen_initial_domain())
return;
num_processors = 0;
disabled_cpus = 0;
for (i = 0; i < nr_cpu_ids; i++) {
rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
if (rc >= 0) {
num_processors++;
set_cpu_possible(i, true);
} else {
set_cpu_possible(i, false);
set_cpu_present(i, false);
subtract++;
}
}
#ifdef CONFIG_HOTPLUG_CPU
if (subtract)
nr_cpu_ids = nr_cpu_ids - subtract;
#endif
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:27，代码来源:smp.c
示例2: brcmstb_smp_setup
/* Early cpumask setup - runs on TP0 */
static void brcmstb_smp_setup(void)
{
__cpu_number_map[0] = 0;
__cpu_logical_map[0] = 0;
set_cpu_possible(0, 1);
set_cpu_present(0, 1);
__cpu_number_map[1] = 1;
__cpu_logical_map[1] = 1;
set_cpu_possible(1, 1);
set_cpu_present(1, 1);
#if defined(CONFIG_BMIPS4380)
/* NBK and weak order flags */
set_c0_brcm_config_0(0x30000);
/*
* MIPS interrupts 0,1 (SW INT 0,1) cross over to the other TP
* MIPS interrupt 2 (HW INT 0) is the TP0 L1 controller output
* MIPS interrupt 3 (HW INT 1) is the TP1 L1 controller output
*/
change_c0_brcm_cmt_intr(0xf8018000, (0x02 << 27) | (0x03 << 15));
#elif defined(CONFIG_BMIPS5000)
/* enable raceless SW interrupts */
set_c0_brcm_config(0x03 << 22);
/* clear any pending SW interrupts */
write_c0_brcm_action(0x2000 | (0 << 9) | (0 << 8));
write_c0_brcm_action(0x2000 | (0 << 9) | (1 << 8));
write_c0_brcm_action(0x2000 | (1 << 9) | (0 << 8));
write_c0_brcm_action(0x2000 | (1 << 9) | (1 << 8));
#endif
}
开发者ID:tch-opensrc，项目名称:TC72XX_LxG1.0.10mp5_OpenSrc，代码行数:34，代码来源:smp.c
示例3: xen_filter_cpu_maps
static void __init xen_filter_cpu_maps(void)
{
int i, rc;
unsigned int subtract = 0;
if (!xen_initial_domain())
return;
num_processors = 0;
disabled_cpus = 0;
for (i = 0; i < nr_cpu_ids; i++) {
rc = HYPERVISOR_vcpu_op(VCPUOP_is_up, i, NULL);
if (rc >= 0) {
num_processors++;
set_cpu_possible(i, true);
} else {
set_cpu_possible(i, false);
set_cpu_present(i, false);
subtract++;
}
}
#ifdef CONFIG_HOTPLUG_CPU
/* This is akin to using 'nr_cpus' on the Linux command line.
* Which is OK as when we use 'dom0_max_vcpus=X' we can only
* have up to X, while nr_cpu_ids is greater than X. This
* normally is not a problem, except when CPU hotplugging
* is involved and then there might be more than X CPUs
* in the guest - which will not work as there is no
* hypercall to expand the max number of VCPUs an already
* running guest has. So cap it up to X. */
if (subtract)
nr_cpu_ids = nr_cpu_ids - subtract;
#endif
}
开发者ID:artynet，项目名称:linux-3.3.8，代码行数:35，代码来源:smp.c
示例4: octeon_smp_setup
static void __init octeon_smp_setup(void)
{
const int coreid = cvmx_get_core_num();
int cpus;
int id;
struct cvmx_sysinfo *sysinfo = cvmx_sysinfo_get();
#ifdef CONFIG_HOTPLUG_CPU
int core_mask = octeon_get_boot_coremask();
unsigned int num_cores = cvmx_octeon_num_cores();
#endif
/* The present CPUs are initially just the boot cpu (CPU 0). */
for (id = 0; id < NR_CPUS; id++) {
set_cpu_possible(id, id == 0);
set_cpu_present(id, id == 0);
}
__cpu_number_map[coreid] = 0;
__cpu_logical_map[0] = coreid;
/* The present CPUs get the lowest CPU numbers. */
cpus = 1;
for (id = 0; id < NR_CPUS; id++) {
if ((id != coreid) && cvmx_coremask_is_core_set(&sysinfo->core_mask, id)) {
set_cpu_possible(cpus, true);
set_cpu_present(cpus, true);
__cpu_number_map[id] = cpus;
__cpu_logical_map[cpus] = id;
cpus++;
}
}
#ifdef CONFIG_HOTPLUG_CPU
/*
* The possible CPUs are all those present on the chip. We
* will assign CPU numbers for possible cores as well. Cores
* are always consecutively numberd from 0.
*/
for (id = 0; setup_max_cpus && octeon_bootloader_entry_addr &&
id < num_cores && id < NR_CPUS; id++) {
if (!(core_mask & (1 << id))) {
set_cpu_possible(cpus, true);
__cpu_number_map[id] = cpus;
__cpu_logical_map[cpus] = id;
cpus++;
}
}
#endif
octeon_smp_hotplug_setup();
}
开发者ID:abdullahvelioglu，项目名称:linux，代码行数:52，代码来源:smp.c
示例5: smp_init_cpus
void __init smp_init_cpus(void)
{
void __iomem *scu_base = scu_base_addr();
unsigned int i, ncores;
ncores = scu_base ? scu_get_core_count(scu_base) : 1;
/* sanity check */
if (ncores == 0) {
printk(KERN_ERR
"S5PV310: strange CM count of 0? Default to 1\n");
ncores = 1;
}
if (ncores > NR_CPUS) {
printk(KERN_WARNING
"S5PV310: no. of cores (%d) greater than configured "
"maximum of %d - clipping\n",
ncores, NR_CPUS);
ncores = NR_CPUS;
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
}
开发者ID:123456798wil，项目名称:kernel_dell_streak7，代码行数:26，代码来源:platsmp.c
示例6: exynos_smp_init_cpus
// ARM10C 20140215
static void __init exynos_smp_init_cpus(void)
{
void __iomem *scu_base = scu_base_addr();
// scu_base: 0xF8800000
unsigned int i, ncores;
// read_cpuid_part_number(): 0x0000C0F0, ARM_CPU_PART_CORTEX_A9: 0xC090
if (read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9)
ncores = scu_base ? scu_get_core_count(scu_base) : 1;
else
/*
* CPU Nodes are passed thru DT and set_cpu_possible
* is set by "arm_dt_init_cpu_maps".
*/
return;
// return 수행
/* sanity check */
if (ncores > nr_cpu_ids) {
pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
ncores, nr_cpu_ids);
ncores = nr_cpu_ids;
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
}
开发者ID:BozkurTR，项目名称:kernel，代码行数:28，代码来源:platsmp.c
示例7: smp_init_cpus
/*
* Initialise the CPU possible map early - this describes the CPUs
* which may be present or become present in the system.
*/
void __init smp_init_cpus(void)
{
unsigned int i, ncores;
/*
* Currently we can't call ioremap here because
* SoC detection won't work until after init_early.
*/
scu_base = OMAP2_L4_IO_ADDRESS(OMAP44XX_SCU_BASE);
BUG_ON(!scu_base);
ncores = scu_get_core_count(scu_base);
/* sanity check */
if (ncores > NR_CPUS) {
printk(KERN_WARNING
"OMAP4: no. of cores (%d) greater than configured "
"maximum of %d - clipping\n",
ncores, NR_CPUS);
ncores = NR_CPUS;
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
set_smp_cross_call(gic_raise_softirq);
}
开发者ID:CSCLOG，项目名称:beaglebone，代码行数:31，代码来源:omap-smp.c
示例8: smp_init_cpus
void __init smp_init_cpus(void)
{
unsigned int i, ncores;
/*
* NoteXXX: CPU 1 may not be reset clearly after power-ON.
* Need to apply a S/W workaround to manualy reset it first.
*/
u32 val;
val = *(volatile u32 *)0xF0009010;
mt65xx_reg_sync_writel(val | 0x2, 0xF0009010);
udelay(10);
mt65xx_reg_sync_writel(val & ~0x2, 0xF0009010);
udelay(10);
ncores = scu_get_core_count((void *)SCU_BASE);
if (ncores > NR_CPUS) {
printk(KERN_WARNING
"SCU core count (%d) > NR_CPUS (%d)\n", ncores, NR_CPUS);
printk(KERN_WARNING
"set nr_cores to NR_CPUS (%d)\n", NR_CPUS);
ncores = NR_CPUS;
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
set_smp_cross_call(irq_raise_softirq);
}
开发者ID:zbyte，项目名称:cink-slim，代码行数:31，代码来源:mt-smp.c
示例9: ct_ca9x4_init_cpu_map
static void ct_ca9x4_init_cpu_map(void)
{
int i, ncores = scu_get_core_count(MMIO_P2V(A9_MPCORE_SCU));
for (i = 0; i < ncores; ++i)
set_cpu_possible(i, true);
}
开发者ID:0x0f，项目名称:android-tegra-nv-2.6.39，代码行数:7，代码来源:ct-ca9x4.c
示例10: smp_init_cpus
void __init smp_init_cpus(void)
{
int i;
for (i = 0; i < NR_CPUS; i++)
set_cpu_possible(i, true);
}
开发者ID:qiqjiao，项目名称:openrisc，代码行数:7，代码来源:smp.c
示例11: smp_init_cpus
void __init smp_init_cpus(void)
{
void __iomem *scu_base = scu_base_addr();
unsigned int i, ncores;
if (soc_is_exynos4210() || soc_is_exynos4212() ||
soc_is_exynos5250())
ncores = 2;
else if (soc_is_exynos4412() || soc_is_exynos5410())
ncores = 4;
else
ncores = scu_base ? scu_get_core_count(scu_base) : 1;
/* sanity check */
if (ncores > nr_cpu_ids) {
pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
ncores, nr_cpu_ids);
ncores = nr_cpu_ids;
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
set_smp_cross_call(gic_raise_softirq);
}
开发者ID:Juanhulk，项目名称:Adam-Kernel-GS4，代码行数:25，代码来源:platsmp.c
示例12: acpi_init_cpus
/* Parse GIC cpu interface entries in MADT for SMP init */
void __init acpi_init_cpus(void)
{
int count, i;
/*
* do a partial walk of MADT to determine how many CPUs
* we have including disabled CPUs, and get information
* we need for SMP init
*/
count = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT,
acpi_parse_gic_cpu_interface, 0);
if (!count) {
pr_err("No GIC CPU interface entries present\n");
return;
} else if (count < 0) {
pr_err("Error parsing GIC CPU interface entry\n");
return;
}
if (!bootcpu_valid) {
pr_err("MADT missing boot CPU MPIDR, not enabling secondaries\n");
return;
}
for (i = 0; i < enabled_cpus; i++)
set_cpu_possible(i, true);
/* Make boot-up look pretty */
pr_info("%d CPUs enabled, %d CPUs total\n", enabled_cpus, total_cpus);
}
开发者ID:0x000000FF，项目名称:edison-linux，代码行数:32，代码来源:acpi.c
示例13: j2_prepare_cpus
static void j2_prepare_cpus(unsigned int max_cpus)
{
struct device_node *np;
unsigned i, max = 1;
np = of_find_compatible_node(NULL, NULL, "jcore,ipi-controller");
if (!np)
goto out;
j2_ipi_irq = irq_of_parse_and_map(np, 0);
j2_ipi_trigger = of_iomap(np, 0);
if (!j2_ipi_irq || !j2_ipi_trigger)
goto out;
np = of_find_compatible_node(NULL, NULL, "jcore,cpuid-mmio");
if (!np)
goto out;
sh2_cpuid_addr = of_iomap(np, 0);
if (!sh2_cpuid_addr)
goto out;
if (request_irq(j2_ipi_irq, j2_ipi_interrupt_handler, IRQF_PERCPU,
"ipi", (void *)j2_ipi_interrupt_handler) != 0)
goto out;
max = max_cpus;
out:
/* Disable any cpus past max_cpus, or all secondaries if we didn't
* get the necessary resources to support SMP. */
for (i=max; i<NR_CPUS; i++) {
set_cpu_possible(i, false);
set_cpu_present(i, false);
}
}
开发者ID:01org，项目名称:thunderbolt-software-kernel-tree，代码行数:35，代码来源:smp-j2.c
示例14: ux500_smp_prepare_cpus
static void __init ux500_smp_prepare_cpus(unsigned int max_cpus)
{
struct device_node *np;
static void __iomem *scu_base;
unsigned int ncores;
int i;
np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
if (!np) {
pr_err("No SCU base address\n");
return;
}
scu_base = of_iomap(np, 0);
of_node_put(np);
if (!scu_base) {
pr_err("No SCU remap\n");
return;
}
scu_enable(scu_base);
ncores = scu_get_core_count(scu_base);
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
iounmap(scu_base);
}
开发者ID:020gzh，项目名称:linux，代码行数:25，代码来源:platsmp.c
示例15: mcpm_smp_init_cpus
void mcpm_smp_init_cpus(void)
{
unsigned int i, ncores;
ncores = MAX_NR_CLUSTERS * MAX_CPUS_PER_CLUSTER;
printk("[%s] ncores=%d\n", __func__, ncores);
/*
* sanity check, the cr_cpu_ids is configured form CONFIG_NR_CPUS
*/
if (ncores > nr_cpu_ids) {
printk("SMP: %u cores greater than maximum (%u), clipping\n",
ncores, nr_cpu_ids);
ncores = nr_cpu_ids;
}
for (i = 0; i < ncores; i++) {
set_cpu_possible(i, true);
}
#ifdef CONFIG_ARCH_SUN9IW1
/* FIXME: init sun9i mcpm cpu map */
sun9i_mcpm_cpu_map_init();
#endif
#ifdef CONFIG_ARCH_SUN8IW6
/* FIXME: init sun9i mcpm cpu map */
sun8i_mcpm_cpu_map_init();
#endif
#if defined(CONFIG_ARM_SUNXI_CPUIDLE)
set_smp_cross_call(sunxi_raise_softirq);
#else
set_smp_cross_call(gic_raise_softirq);
#endif
}
开发者ID:925outer，项目名称:BPI-M2P-bsp，代码行数:33，代码来源:mcpm_entry.c
示例16: sunxi_smp_init_cpus
/*
* Setup the set of possible CPUs (via set_cpu_possible)
*/
void sunxi_smp_init_cpus(void)
{
unsigned int i, ncores;
ncores = get_nr_cores();
pr_debug("[%s] ncores=%d\n", __func__, ncores);
/*
* sanity check, the cr_cpu_ids is configured form CONFIG_NR_CPUS
*/
if (ncores > nr_cpu_ids) {
pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
ncores, nr_cpu_ids);
ncores = nr_cpu_ids;
}
for (i = 0; i < ncores; i++) {
set_cpu_possible(i, true);
}
#if defined(CONFIG_ARM_SUNXI_CPUIDLE)
set_smp_cross_call(sunxi_raise_softirq);
#else
set_smp_cross_call(gic_raise_softirq);
#endif
}
开发者ID:alex-deng，项目名称:a33_linux，代码行数:29，代码来源:sunxi-platsmp.c
示例17: smp_init_cpus
/*
* Initialise the CPU possible map early - this describes the CPUs
* which may be present or become present in the system.
*/
void __init smp_init_cpus(void)
{
unsigned int i, ncores;
/*
* Currently we can't call ioremap here because
* SoC detection won't work until after init_early.
*/
scu_base = OMAP2_L4_IO_ADDRESS(OMAP44XX_SCU_BASE);
BUG_ON(!scu_base);
ncores = scu_get_core_count(scu_base);
/* sanity check */
if (ncores > nr_cpu_ids) {
pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
ncores, nr_cpu_ids);
ncores = nr_cpu_ids;
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
set_smp_cross_call(gic_raise_softirq);
}
开发者ID:5victor，项目名称:linux，代码行数:29，代码来源:omap-smp.c
示例18: shx3_smp_setup
static void shx3_smp_setup(void)
{
unsigned int cpu = 0;
int i, num;
init_cpu_possible(cpumask_of(cpu));
/* Enable light sleep for the boot CPU */
__raw_writel(__raw_readl(STBCR_REG(cpu)) | STBCR_LTSLP, STBCR_REG(cpu));
__cpu_number_map[0] = 0;
__cpu_logical_map[0] = 0;
/*
* Do this stupidly for now.. we don't have an easy way to probe
* for the total number of cores.
*/
for (i = 1, num = 0; i < NR_CPUS; i++) {
set_cpu_possible(i, true);
__cpu_number_map[i] = ++num;
__cpu_logical_map[num] = i;
}
printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
}
开发者ID:150balbes，项目名称:Amlogic_s905-kernel，代码行数:25，代码来源:smp-shx3.c
示例19: smp_init_cpus
/*
* Initialise the CPU possible map early - this describes the CPUs
* which may be present or become present in the system.
*/
void __init smp_init_cpus(void)
{
unsigned int i, ncores = get_core_count();
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
}
开发者ID:nikatshun，项目名称:asuswrt-merlin，代码行数:11，代码来源:platsmp.c
示例20: omap4_smp_init_cpus
/*
* Initialise the CPU possible map early - this describes the CPUs
* which may be present or become present in the system.
*/
static void __init omap4_smp_init_cpus(void)
{
unsigned int i = 0, ncores = 1, cpu_id;
/* Use ARM cpuid check here, as SoC detection will not work so early */
cpu_id = read_cpuid_id() & CPU_MASK;
if (cpu_id == CPU_CORTEX_A9) {
/*
* Currently we can't call ioremap here because
* SoC detection won't work until after init_early.
*/
scu_base = OMAP2_L4_IO_ADDRESS(scu_a9_get_base());
BUG_ON(!scu_base);
ncores = scu_get_core_count(scu_base);
} else if (cpu_id == CPU_CORTEX_A15) {
ncores = OMAP5_CORE_COUNT;
}
/* sanity check */
if (ncores > nr_cpu_ids) {
pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
ncores, nr_cpu_ids);
ncores = nr_cpu_ids;
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
}
开发者ID:03199618，项目名称:linux，代码行数:32，代码来源:omap-smp.c
注：本文中的set_cpu_possible函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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