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authorBorislav Petkov <bp@suse.de>2021-01-13 22:13:30 +0300
committerBorislav Petkov <bp@suse.de>2021-01-22 13:13:47 +0300
commit4cbcb73b1c7a73a13b336e0c048601d6e8eecaa8 (patch)
tree62706c2bc87c913343bce022ac736412505b7562 /drivers/edac
parent1865bc71a869ede69098b1f3e65857b4330f0607 (diff)
downloadlinux-4cbcb73b1c7a73a13b336e0c048601d6e8eecaa8.tar.xz
EDAC/amd64: Issue probing messages only on properly detected hardware
amd64_edac was converted to CPU family autoprobing (from PCI device IDs) to not have to add a new PCI device ID each time a new platform is shipped but to support the whole family out-of-the-box. However, this caused a lot of noise in dmesg even when the machine doesn't have ECC DIMMs or ECC has been disabled in the BIOS: EDAC MC: Ver: 3.0.0 EDAC amd64: F17h detected (node 0). EDAC amd64: Node 0: DRAM ECC disabled. EDAC amd64: F17h detected (node 1). EDAC amd64: Node 1: DRAM ECC disabled. EDAC amd64: F17h detected (node 2). EDAC amd64: Node 2: DRAM ECC disabled. EDAC amd64: F17h detected (node 3). EDAC amd64: Node 3: DRAM ECC disabled. EDAC amd64: F17h detected (node 4). EDAC amd64: Node 4: DRAM ECC disabled. EDAC amd64: F17h detected (node 5). EDAC amd64: Node 5: DRAM ECC disabled. EDAC amd64: F17h detected (node 6). EDAC amd64: Node 6: DRAM ECC disabled. EDAC amd64: F17h detected (node 7). EDAC amd64: Node 7: DRAM ECC disabled. or even $ grep EDAC dmesg.log | sed 's/\[.*\] //' | sort | uniq -c 128 EDAC amd64: F17h detected (node 0). 128 EDAC amd64: Node 0: DRAM ECC disabled. 1 EDAC MC: Ver: 3.0.0 on a big machine. Yap, that's once per CPU for 128 of them. So move the init messages after all probing has succeeded to avoid unnecessary spew in dmesg. Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20210119164141.17417-1-bp@alien8.de
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/amd64_edac.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 9868f95a5622..9fa4dfc6ebee 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3528,8 +3528,7 @@ static bool ecc_enabled(struct amd64_pvt *pvt)
MSR_IA32_MCG_CTL, nid);
}
- amd64_info("Node %d: DRAM ECC %s.\n",
- nid, (ecc_en ? "enabled" : "disabled"));
+ edac_dbg(3, "Node %d: DRAM ECC %s.\n", nid, (ecc_en ? "enabled" : "disabled"));
if (!ecc_en || !nb_mce_en)
return false;
@@ -3689,11 +3688,6 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
return NULL;
}
- amd64_info("%s %sdetected (node %d).\n", fam_type->ctl_name,
- (pvt->fam == 0xf ?
- (pvt->ext_model >= K8_REV_F ? "revF or later "
- : "revE or earlier ")
- : ""), pvt->mc_node_id);
return fam_type;
}
@@ -3865,6 +3859,12 @@ static int probe_one_instance(unsigned int nid)
goto err_enable;
}
+ amd64_info("%s %sdetected (node %d).\n", fam_type->ctl_name,
+ (pvt->fam == 0xf ?
+ (pvt->ext_model >= K8_REV_F ? "revF or later "
+ : "revE or earlier ")
+ : ""), pvt->mc_node_id);
+
dump_misc_regs(pvt);
return ret;