x86, mce: unify, prepare codes

Move current 32-bit mce_32.c code into mce_64.c.

[ Remove unused artifact stop/restart_mce pointed by Andi Kleen ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@firstfloor.org>
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c
index 1491246c4d69..ce48ae75e1dc 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_64.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_64.c
@@ -1240,3 +1240,68 @@ static __init int mce_init_device(void)
 }
 
 device_initcall(mce_init_device);
+
+#ifdef CONFIG_X86_32
+
+int mce_disabled;
+
+int nr_mce_banks;
+EXPORT_SYMBOL_GPL(nr_mce_banks);        /* non-fatal.o */
+
+/* Handle unconfigured int18 (should never happen) */
+static void unexpected_machine_check(struct pt_regs *regs, long error_code)
+{
+        printk(KERN_ERR "CPU#%d: Unexpected int18 (Machine Check).\n",
+               smp_processor_id());
+}
+
+/* Call the installed machine check handler for this CPU setup. */
+void (*machine_check_vector)(struct pt_regs *, long error_code) =
+                                                unexpected_machine_check;
+
+/* This has to be run for each processor */
+void mcheck_init(struct cpuinfo_x86 *c)
+{
+        if (mce_disabled == 1)
+                return;
+
+        switch (c->x86_vendor) {
+        case X86_VENDOR_AMD:
+                amd_mcheck_init(c);
+                break;
+
+        case X86_VENDOR_INTEL:
+                if (c->x86 == 5)
+                        intel_p5_mcheck_init(c);
+                if (c->x86 == 6)
+                        intel_p6_mcheck_init(c);
+                if (c->x86 == 15)
+                        intel_p4_mcheck_init(c);
+                break;
+
+        case X86_VENDOR_CENTAUR:
+                if (c->x86 == 5)
+                        winchip_mcheck_init(c);
+                break;
+
+        default:
+                break;
+        }
+}
+
+static int __init mcheck_disable(char *str)
+{
+        mce_disabled = 1;
+        return 1;
+}
+
+static int __init mcheck_enable(char *str)
+{
+        mce_disabled = -1;
+        return 1;
+}
+
+__setup("nomce", mcheck_disable);
+__setup("mce", mcheck_enable);
+
+#endif /* CONFIG_X86_32 */