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| author | Yazen Ghannam <yazen.ghannam@amd.com> | 2017-12-18 12:37:12 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-12-18 12:58:28 +0100 |
| commit | 11cf887728a3d1de77cc12ce247b64ef32608891 (patch) | |
| tree | a47c86743c28616d60e0df7c00c3b4465fe38ad2 /arch/x86/kernel/cpu | |
| parent | x86/mce/AMD: Don't set DEF_INT_TYPE in MSR_CU_DEF_ERR on SMCA systems (diff) | |
| download | linux-11cf887728a3d1de77cc12ce247b64ef32608891.tar.xz linux-11cf887728a3d1de77cc12ce247b64ef32608891.zip | |
x86/MCE/AMD: Define a function to get SMCA bank type
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 (Unified Memory Controller) then we will need to
convert its address from a normalized address to a system physical
address before handling the error.
[ bp: Verify m->bank is within range and use bank pointer. ]
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20171207203955.118171-1-Yazen.Ghannam@amd.com
Diffstat (limited to 'arch/x86/kernel/cpu')
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/mce_amd.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c index a38ab1fa53a2..661c4738be27 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_amd.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c @@ -110,6 +110,20 @@ const char *smca_get_long_name(enum smca_bank_types t) } EXPORT_SYMBOL_GPL(smca_get_long_name); +static enum smca_bank_types smca_get_bank_type(struct mce *m) +{ + struct smca_bank *b; + + if (m->bank >= N_SMCA_BANK_TYPES) + return N_SMCA_BANK_TYPES; + + b = &smca_banks[m->bank]; + if (!b->hwid) + return N_SMCA_BANK_TYPES; + + return b->hwid->bank_type; +} + static struct smca_hwid smca_hwid_mcatypes[] = { /* { bank_type, hwid_mcatype, xec_bitmap } */ |