From: Yazen Ghannam <yazen.ghan...@amd.com>
Scalable MCA systems have various types of banks. The bank's type can
determine how we handle errors from it. For example, if a bank represents
a UMC then we will need to convert its address from a normalized address
to a system physical address before handling the error.
Define an exported function to return a bank's SMCA type.
Signed-off-by: Yazen Ghannam <yazen.ghan...@amd.com>
---
arch/x86/include/asm/mce.h | 1 +
arch/x86/kernel/cpu/mcheck/mce_amd.c | 11 +++++++++++
2 files changed, 12 insertions(+)
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index b1e8d8db921f..9ab8bf32e61c 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -376,6 +376,7 @@ struct smca_bank {
extern struct smca_bank smca_banks[MAX_NR_BANKS];
extern const char *smca_get_long_name(enum smca_bank_types t);
+extern unsigned int smca_get_bank_type(struct mce *m);
extern int mce_threshold_create_device(unsigned int cpu);
extern int mce_threshold_remove_device(unsigned int cpu);
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c
b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index a38ab1fa53a2..bc0510a4f6c0 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -110,6 +110,17 @@ const char *smca_get_long_name(enum smca_bank_types t)
}
EXPORT_SYMBOL_GPL(smca_get_long_name);
+unsigned int smca_get_bank_type(struct mce *m)
+{
+ struct smca_bank bank = smca_banks[m->bank];
+
+ if (!bank.hwid)
+ return N_SMCA_BANK_TYPES;
+
+ return bank.hwid->bank_type;
+}
+EXPORT_SYMBOL_GPL(smca_get_bank_type);
+
static struct smca_hwid smca_hwid_mcatypes[] = {
/* { bank_type, hwid_mcatype, xec_bitmap } */
--
2.14.1
