2 * mce.c - x86 Machine Check Exception Reporting
3 * (c) 2002 Alan Cox <alan@lxorguk.ukuu.org.uk>, Dave Jones <davej@redhat.com>
5 #include <linux/thread_info.h>
6 #include <linux/kernel.h>
7 #include <linux/module.h>
8 #include <linux/types.h>
9 #include <linux/init.h>
10 #include <linux/smp.h>
12 #include <asm/processor.h>
13 #include <asm/system.h>
21 EXPORT_SYMBOL_GPL(nr_mce_banks
); /* non-fatal.o */
23 /* Handle unconfigured int18 (should never happen) */
24 static void unexpected_machine_check(struct pt_regs
*regs
, long error_code
)
26 printk(KERN_ERR
"CPU#%d: Unexpected int18 (Machine Check).\n",
30 /* Call the installed machine check handler for this CPU setup. */
31 void (*machine_check_vector
)(struct pt_regs
*, long error_code
) =
32 unexpected_machine_check
;
34 /* This has to be run for each processor */
35 void mcheck_init(struct cpuinfo_x86
*c
)
37 if (mce_disabled
== 1)
40 switch (c
->x86_vendor
) {
45 case X86_VENDOR_INTEL
:
47 intel_p5_mcheck_init(c
);
49 intel_p6_mcheck_init(c
);
51 intel_p4_mcheck_init(c
);
54 case X86_VENDOR_CENTAUR
:
56 winchip_mcheck_init(c
);
64 static int __init
mcheck_disable(char *str
)
70 static int __init
mcheck_enable(char *str
)
76 __setup("nomce", mcheck_disable
);
77 __setup("mce", mcheck_enable
);