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authorBorislav Petkov <borislav.petkov@amd.com>2009-12-15 16:03:53 +0100
committerBorislav Petkov <borislav.petkov@amd.com>2009-12-16 17:48:39 +0100
commit256f7276af20c88b492353710d5d6640b09c3d63 (patch)
tree9d2a4a26da9d79b3d19dafa9cf44149a1cee7a28 /drivers/edac
parent35d8069234bacfab608d2d7571c2cb71a23c3fae (diff)
downloadlinux-256f7276af20c88b492353710d5d6640b09c3d63.tar.bz2
edac, mce, amd: silence GART TLB errors
Although reporting of benign GART TLB errors is disabled in __mcheck_cpu_apply_quirks, those are still being logged, and, as a result, trip up amd64_edac. Pull up reporting check so that machines with loaded edac module bail out early and don't spit fragments into dmesg. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/edac_mce_amd.c21
1 files changed, 6 insertions, 15 deletions
diff --git a/drivers/edac/edac_mce_amd.c b/drivers/edac/edac_mce_amd.c
index 9965b8daca74..8fc91a019620 100644
--- a/drivers/edac/edac_mce_amd.c
+++ b/drivers/edac/edac_mce_amd.c
@@ -299,6 +299,12 @@ void amd_decode_nb_mce(int node_id, struct err_regs *regs, int handle_errors)
if (!handle_errors)
return;
+ /*
+ * GART TLB error reporting is disabled by default. Bail out early.
+ */
+ if (TLB_ERROR(ec) && !report_gart_errors)
+ return;
+
pr_emerg(" Northbridge Error, node %d", node_id);
/*
@@ -332,21 +338,6 @@ static void amd_decode_fr_mce(u64 mc5_status)
static inline void amd_decode_err_code(unsigned int ec)
{
if (TLB_ERROR(ec)) {
- /*
- * GART errors are intended to help graphics driver developers
- * to detect bad GART PTEs. It is recommended by AMD to disable
- * GART table walk error reporting by default[1] (currently
- * being disabled in mce_cpu_quirks()) and according to the
- * comment in mce_cpu_quirks(), such GART errors can be
- * incorrectly triggered. We may see these errors anyway and
- * unless requested by the user, they won't be reported.
- *
- * [1] section 13.10.1 on BIOS and Kernel Developers Guide for
- * AMD NPT family 0Fh processors
- */
- if (!report_gart_errors)
- return;
-
pr_emerg(" Transaction: %s, Cache Level %s\n",
TT_MSG(ec), LL_MSG(ec));
} else if (MEM_ERROR(ec)) {