From 4cbcb73b1c7a73a13b336e0c048601d6e8eecaa8 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Wed, 13 Jan 2021 20:13:30 +0100 Subject: 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 Link: https://lkml.kernel.org/r/20210119164141.17417-1-bp@alien8.de --- drivers/edac/amd64_edac.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers/edac') 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; -- cgit v1.2.3