diff options
| author | Yazen Ghannam <yazen.ghannam@amd.com> | 2019-02-13 00:24:28 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2019-02-15 16:25:58 +0300 |
| commit | 3f4da372ec8e4ce58c17ac4f2e3c8891bbfea17e (patch) | |
| tree | 326eebcbea7f8cde21e61492b53b00b19d84ce7e /drivers | |
| parent | 1c1522d32ac49065f88e5a8b3d6e3a5613b20118 (diff) | |
| download | linux-3f4da372ec8e4ce58c17ac4f2e3c8891bbfea17e.tar.xz | |
EDAC/mce_amd: Decode MCA_STATUS[Scrub] bit
Previous AMD systems have had a bit in MCA_STATUS to indicate that an
error was detected on a scrub operation. However, this bit was defined
differently within different banks and families/models.
Starting with Family 17h, MCA_STATUS[40] is either Reserved/Read-as-Zero
or defined as "Scrub", for all MCA banks and CPU models. Therefore, this
bit can be defined as the "Scrub" bit.
Define MCA_STATUS[40] as "Scrub" and decode it in the AMD MCE decoding
module for Family 17h and newer systems.
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Morse <james.morse@arm.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Pu Wen <puwen@hygon.cn>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190212212417.107049-1-Yazen.Ghannam@amd.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/edac/mce_amd.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/edac/mce_amd.c b/drivers/edac/mce_amd.c index f286b880f981..b349c22bb386 100644 --- a/drivers/edac/mce_amd.c +++ b/drivers/edac/mce_amd.c @@ -1078,6 +1078,9 @@ amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data) if (ecc) pr_cont("|%sECC", ((ecc == 2) ? "C" : "U")); + if (fam >= 0x17) + pr_cont("|%s", (m->status & MCI_STATUS_SCRUB ? "Scrub" : "-")); + pr_cont("]: 0x%016llx\n", m->status); if (m->status & MCI_STATUS_ADDRV) |