From a335402bec6511c11ab54c943287e7be7fb1672d Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghailu@gmail.com>
Date: Mon, 3 Jan 2005 20:54:43 +0000
Subject: serialize cpus for >2

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1837 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
---
 src/cpu/x86/lapic/lapic_cpu_init.c | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'src/cpu/x86/lapic/lapic_cpu_init.c')

diff --git a/src/cpu/x86/lapic/lapic_cpu_init.c b/src/cpu/x86/lapic/lapic_cpu_init.c
index b477d1f0cc..20615e61c8 100644
--- a/src/cpu/x86/lapic/lapic_cpu_init.c
+++ b/src/cpu/x86/lapic/lapic_cpu_init.c
@@ -229,7 +229,13 @@ int start_cpu(device_t cpu)
 void secondary_cpu_init(void)
 {
 	atomic_inc(&active_cpus);
+#if CONFIG_MAX_CPUS>2
+	spin_lock(&start_cpu_lock);
+#endif
 	cpu_initialize();
+#if CONFIG_MAX_CPUS>2
+	spin_unlock(&start_cpu_lock);
+#endif
 	atomic_dec(&active_cpus);
 	stop_this_cpu();
 }
@@ -254,6 +260,9 @@ static void initialize_other_cpus(struct bus *cpu_bus)
 			printk_err("CPU  %u would not start!\n",
 				cpu->path.u.apic.apic_id);
 		}
+#if CONFIG_MAX_CPUS>2
+		udelay(10);
+#endif
 	}
 
 	/* Now loop until the other cpus have finished initializing */
-- 
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