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serialize cpus for >2

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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1837 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu
2005-01-03 20:54:43 +00:00
parent e089f00ad4
commit a335402bec
1 changed files with 9 additions and 0 deletions
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9
src/cpu/x86/lapic/lapic_cpu_init.c
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@@ -229,7 +229,13 @@ int start_cpu(device_t cpu)
void secondary_cpu_init(void) void secondary_cpu_init(void)
{ {
atomic_inc(&active_cpus); atomic_inc(&active_cpus);
#if CONFIG_MAX_CPUS>2
spin_lock(&start_cpu_lock);
#endif
cpu_initialize(); cpu_initialize();
#if CONFIG_MAX_CPUS>2
spin_unlock(&start_cpu_lock);
#endif
atomic_dec(&active_cpus); atomic_dec(&active_cpus);
stop_this_cpu(); stop_this_cpu();
} }
@@ -254,6 +260,9 @@ static void initialize_other_cpus(struct bus *cpu_bus)
printk_err("CPU %u would not start!\n", printk_err("CPU %u would not start!\n",
cpu->path.u.apic.apic_id); cpu->path.u.apic.apic_id);
} }
#if CONFIG_MAX_CPUS>2
udelay(10);
#endif
} }
/* Now loop until the other cpus have finished initializing */ /* Now loop until the other cpus have finished initializing */