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Diffstat (limited to 'drivers/edac/edac_mce_amd.c')
-rw-r--r--drivers/edac/edac_mce_amd.c32
1 files changed, 31 insertions, 1 deletions
diff --git a/drivers/edac/edac_mce_amd.c b/drivers/edac/edac_mce_amd.c
index 0c21c370c9dd..713ed7d37247 100644
--- a/drivers/edac/edac_mce_amd.c
+++ b/drivers/edac/edac_mce_amd.c
@@ -3,6 +3,7 @@
static bool report_gart_errors;
static void (*nb_bus_decoder)(int node_id, struct err_regs *regs);
+static void (*orig_mce_callback)(struct mce *m);
void amd_report_gart_errors(bool v)
{
@@ -362,7 +363,7 @@ static inline void amd_decode_err_code(unsigned int ec)
pr_warning("Huh? Unknown MCE error 0x%x\n", ec);
}
-void decode_mce(struct mce *m)
+static void amd_decode_mce(struct mce *m)
{
struct err_regs regs;
int node, ecc;
@@ -420,3 +421,32 @@ void decode_mce(struct mce *m)
amd_decode_err_code(m->status & 0xffff);
}
+
+static int __init mce_amd_init(void)
+{
+ /*
+ * We can decode MCEs for Opteron and later CPUs:
+ */
+ if ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
+ (boot_cpu_data.x86 >= 0xf)) {
+ /* safe the default decode mce callback */
+ orig_mce_callback = x86_mce_decode_callback;
+
+ x86_mce_decode_callback = amd_decode_mce;
+ }
+
+ return 0;
+}
+early_initcall(mce_amd_init);
+
+#ifdef MODULE
+static void __exit mce_amd_exit(void)
+{
+ x86_mce_decode_callback = orig_mce_callback;
+}
+
+MODULE_DESCRIPTION("AMD MCE decoder");
+MODULE_ALIAS("edac-mce-amd");
+MODULE_LICENSE("GPL");
+module_exit(mce_amd_exit);
+#endif