Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu

[pandora-kernel.git] / arch / x86 / kernel / cpu / mcheck / mce.c

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 14ce5d4..fdd51b5 100644 (file)
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -183,6 +183,11 @@ void mce_log(struct mce *mce)
        set_bit(0, &mce_need_notify);
 }
 
+void __weak decode_mce(struct mce *m)
+{
+       return;
+}
+
 static void print_mce(struct mce *m)
 {
        printk(KERN_EMERG
@@ -205,6 +210,8 @@ static void print_mce(struct mce *m)
        printk(KERN_EMERG "PROCESSOR %u:%x TIME %llu SOCKET %u APIC %x\n",
                        m->cpuvendor, m->cpuid, m->time, m->socketid,
                        m->apicid);
+
+       decode_mce(m);
 }
 
 static void print_mce_head(void)
@@ -215,7 +222,10 @@ static void print_mce_head(void)
 static void print_mce_tail(void)
 {
        printk(KERN_EMERG "This is not a software problem!\n"
-              "Run through mcelog --ascii to decode and contact your hardware vendor\n");
+#if (!defined(CONFIG_EDAC) || !defined(CONFIG_CPU_SUP_AMD))
+              "Run through mcelog --ascii to decode and contact your hardware vendor\n"
+#endif
+              );
 }
 
 #define PANIC_TIMEOUT 5 /* 5 seconds */
@@ -1226,8 +1236,13 @@ static void mce_init(void)
 }
 
 /* Add per CPU specific workarounds here */
-static void mce_cpu_quirks(struct cpuinfo_x86 *c)
+static int mce_cpu_quirks(struct cpuinfo_x86 *c)
 {
+       if (c->x86_vendor == X86_VENDOR_UNKNOWN) {
+               pr_info("MCE: unknown CPU type - not enabling MCE support.\n");
+               return -EOPNOTSUPP;
+       }
+
        /* This should be disabled by the BIOS, but isn't always */
        if (c->x86_vendor == X86_VENDOR_AMD) {
                if (c->x86 == 15 && banks > 4) {
@@ -1273,11 +1288,20 @@ static void mce_cpu_quirks(struct cpuinfo_x86 *c)
                if ((c->x86 > 6 || (c->x86 == 6 && c->x86_model >= 0xe)) &&
                        monarch_timeout < 0)
                        monarch_timeout = USEC_PER_SEC;
+
+               /*
+                * There are also broken BIOSes on some Pentium M and
+                * earlier systems:
+                */
+               if (c->x86 == 6 && c->x86_model <= 13 && mce_bootlog < 0)
+                       mce_bootlog = 0;
        }
        if (monarch_timeout < 0)
                monarch_timeout = 0;
        if (mce_bootlog != 0)
                mce_panic_timeout = 30;
+
+       return 0;
 }
 
 static void __cpuinit mce_ancient_init(struct cpuinfo_x86 *c)
@@ -1338,11 +1362,10 @@ void __cpuinit mcheck_init(struct cpuinfo_x86 *c)
        if (!mce_available(c))
                return;
 
-       if (mce_cap_init() < 0) {
+       if (mce_cap_init() < 0 || mce_cpu_quirks(c) < 0) {
                mce_disabled = 1;
                return;
        }
-       mce_cpu_quirks(c);
 
        machine_check_vector = do_machine_check;