diff options
| author | Avadhut Naik <avadhut.naik@amd.com> | 2024-10-22 19:36:29 +0000 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-10-31 10:36:07 +0100 |
| commit | d4fca1358ea9096f2f6ed942e2cb3a820073dfc1 (patch) | |
| tree | f4832caf73d7728455cc663fd86ef1186701f564 /drivers/edac | |
| parent | e52750fb1458ae9ea5860a08ed7a149185bc5b97 (diff) | |
| download | linux-d4fca1358ea9096f2f6ed942e2cb3a820073dfc1.tar.gz linux-d4fca1358ea9096f2f6ed942e2cb3a820073dfc1.tar.bz2 linux-d4fca1358ea9096f2f6ed942e2cb3a820073dfc1.zip | |
x86/MCE/AMD: Add support for new MCA_SYND{1,2} registers
Starting with Zen4, AMD's Scalable MCA systems incorporate two new registers:
MCA_SYND1 and MCA_SYND2.
These registers will include supplemental error information in addition to the
existing MCA_SYND register. The data within these registers is considered
valid if MCA_STATUS[SyndV] is set.
Userspace error decoding tools like rasdaemon gather related hardware error
information through the tracepoints.
Therefore, export these two registers through the mce_record tracepoint so
that tools like rasdaemon can parse them and output the supplemental error
information like FRU text contained in them.
[ bp: Massage. ]
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Avadhut Naik <avadhut.naik@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Link: https://lore.kernel.org/r/20241022194158.110073-4-avadhut.naik@amd.com
Diffstat (limited to 'drivers/edac')
| -rw-r--r-- | drivers/edac/mce_amd.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c index 8130c3dc64da..194d9fd47d20 100644 --- a/drivers/edac/mce_amd.c +++ b/drivers/edac/mce_amd.c @@ -793,6 +793,7 @@ static int amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data) { struct mce *m = (struct mce *)data; + struct mce_hw_err *err = to_mce_hw_err(m); unsigned int fam = x86_family(m->cpuid); int ecc; @@ -850,8 +851,11 @@ amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data) if (boot_cpu_has(X86_FEATURE_SMCA)) { pr_emerg(HW_ERR "IPID: 0x%016llx", m->ipid); - if (m->status & MCI_STATUS_SYNDV) - pr_cont(", Syndrome: 0x%016llx", m->synd); + if (m->status & MCI_STATUS_SYNDV) { + pr_cont(", Syndrome: 0x%016llx\n", m->synd); + pr_emerg(HW_ERR "Syndrome1: 0x%016llx, Syndrome2: 0x%016llx", + err->vendor.amd.synd1, err->vendor.amd.synd2); + } pr_cont("\n"); |