void scaling_governor_func(int argc, char *argv[])
{
int cpuid = -1;
char *name;
if ( argc >= 2 )
{
parse_cpuid(argv[0], &cpuid);
name = argv[1];
}
else if ( argc > 0 )
name = argv[0];
else
{
fprintf(stderr, "Missing argument(s)\n");
exit(EINVAL);
}
if ( cpuid < 0 )
{
int i;
for ( i = 0; i < max_cpu_nr; i++ )
if ( xc_set_cpufreq_gov(xc_handle, i, name) )
fprintf(stderr, "[CPU%d] failed to set governor name (%d - %s)\n",
i, errno, strerror(errno));
}
else
{
if ( xc_set_cpufreq_gov(xc_handle, cpuid, name) )
fprintf(stderr, "failed to set governor name (%d - %s)\n",
errno, strerror(errno));
}
}
static void parse_cpuid_and_int(int argc, char *argv[],
int *cpuid, int *val, const char *what)
{
if ( argc > 1 )
parse_cpuid(argv[0], cpuid);
if ( argc == 0 || sscanf(argv[argc > 1], "%d", val) != 1 )
{
fprintf(stderr, argc ? "Invalid %s '%s'\n" : "Missing %s\n",
what, argv[argc > 1]);
exit(EINVAL);
}
}
void cpufreq_para_func(int argc, char *argv[])
{
int cpuid = -1;
if ( argc > 0 )
parse_cpuid(argv[0], &cpuid);
if ( cpuid < 0 )
{
/* show cpu freqency information on all cpus */
int i;
for ( i = 0; i < max_cpu_nr; i++ )
if ( show_cpufreq_para_by_cpuid(xc_handle, i) == -ENODEV )
break;
}
else
show_cpufreq_para_by_cpuid(xc_handle, cpuid);
}
void pxstat_func(int argc, char *argv[])
{
int cpuid = -1;
if ( argc > 0 )
parse_cpuid(argv[0], &cpuid);
if ( cpuid < 0 )
{
/* show pxstates on all cpus */
int i;
for ( i = 0; i < max_cpu_nr; i++ )
if ( show_pxstat_by_cpuid(xc_handle, i) == -ENODEV )
break;
}
else
show_pxstat_by_cpuid(xc_handle, cpuid);
}
void disable_turbo_mode(int argc, char *argv[])
{
int cpuid = -1;
if ( argc > 0 )
parse_cpuid(argv[0], &cpuid);
if ( cpuid < 0 )
{
/* disable turbo modes on all cpus,
* only make effects on dbs governor */
int i;
for ( i = 0; i < max_cpu_nr; i++ )
if ( xc_disable_turbo(xc_handle, i) )
fprintf(stderr,
"[CPU%d] failed to disable turbo mode (%d - %s)\n",
i, errno, strerror(errno));
}
else if ( xc_disable_turbo(xc_handle, cpuid) )
fprintf(stderr, "failed to disable turbo mode (%d - %s)\n",
errno, strerror(errno));
}
void arch_cpu_processor_init_1(void)
{
#if _DBOS_KERNEL_HAVE_CPU_SMP
primary_cpu = &cpu_array[0];
primary_cpu->knum = 0;
spinlock_create(&ipi_lock);
memset(cpu_array, 0, sizeof(struct cpu) * MAX_CPUS);
cpu_array_num = 1;
load_tables_ap(primary_cpu);
#else
primary_cpu = &primary_cpu_data;
memset(primary_cpu, 0, sizeof(struct cpu) * MAX_CPUS);
load_tables_ap(primary_cpu);
#endif
ASSERT(primary_cpu);
cpu_interrupt_set(0);
primary_cpu->flags = CPU_UP;
printk(KERN_MSG, "Initializing CPU...\n");
parse_cpuid(primary_cpu);
x86_cpu_init_fpu(primary_cpu);
x86_cpu_init_sse(primary_cpu);
printk(KERN_EVERY, "Done\n");
}
