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Subject[PATCH 16/16] amd64_edac: Disable DRAM ECC injection on K8
Date
From: Borislav Petkov <borislav.petkov@amd.com>

K8 does not allow for an atomic RMW to a cacheline as GH does so disable
the error injection interface for it.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
---
drivers/edac/amd64_edac.c | 5 +++--
1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index f19c34e..3f7e886 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -2466,8 +2466,9 @@ static void set_mc_sysfs_attrs(struct mem_ctl_info *mci)
for (; i < ARRAY_SIZE(amd64_dbg_attrs); i++)
sysfs_attrs[i] = amd64_dbg_attrs[i];

- for (j = 0; j < ARRAY_SIZE(amd64_inj_attrs); j++, i++)
- sysfs_attrs[i] = amd64_inj_attrs[j];
+ if (boot_cpu_data.x86 >= 0x10)
+ for (j = 0; j < ARRAY_SIZE(amd64_inj_attrs); j++, i++)
+ sysfs_attrs[i] = amd64_inj_attrs[j];

sysfs_attrs[i] = terminator;

--
1.7.3.1.50.g1e633


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