C++ (Cpp) a2_scom_startup_cpuの例

コード例 #1

ファイル: smp.c プロジェクト: Blackburn29/PsycoKernel

int __devinit smp_a2_kick_cpu(int nr)
{
	const char *enable_method;
	struct device_node *np;
	int thr_idx;

	if (nr < 0 || nr >= NR_CPUS)
		return -ENOENT;

	np = of_get_cpu_node(nr, &thr_idx);
	if (!np)
		return -ENODEV;

	enable_method = of_get_property(np, "enable-method", NULL);
	pr_devel("CPU%d has enable-method: \"%s\"\n", nr, enable_method);

	if (!enable_method) {
                printk(KERN_ERR "CPU%d has no enable-method\n", nr);
		return -ENOENT;
	} else if (strcmp(enable_method, "ibm,a2-scom") == 0) {
		if (a2_scom_startup_cpu(nr, thr_idx, np))
			return -1;
	} else {
		printk(KERN_ERR "CPU%d: Don't understand enable-method \"%s\"\n",
                       nr, enable_method);
		return -EINVAL;
	}

	paca[nr].cpu_start = 1;

	return 0;
}

コード例 #2

ファイル: smp.c プロジェクト: openube/android_kernel_sony_c2305

int __devinit smp_a2_kick_cpu(int nr)
{
	const char *enable_method;
	struct device_node *np;
	int thr_idx;

	if (nr < 0 || nr >= NR_CPUS)
		return -ENOENT;

	np = of_get_cpu_node(nr, &thr_idx);
	if (!np)
		return -ENODEV;

	enable_method = of_get_property(np, "enable-method", NULL);
	pr_devel("CPU%d has enable-method: \"%s\"\n", nr, enable_method);

	if (!enable_method) {
                printk(KERN_ERR "CPU%d has no enable-method\n", nr);
		return -ENOENT;
	} else if (strcmp(enable_method, "ibm,a2-scom") == 0) {
		if (a2_scom_startup_cpu(nr, thr_idx, np))
			return -1;
	} else {
		printk(KERN_ERR "CPU%d: Don't understand enable-method \"%s\"\n",
                       nr, enable_method);
		return -EINVAL;
	}

	/*
	 * The processor is currently spinning, waiting for the
	 * cpu_start field to become non-zero After we set cpu_start,
	 * the processor will continue on to secondary_start
	 */
	paca[nr].cpu_start = 1;

	return 0;
}