From: Avadhut Naik Date: Tue, 16 Sep 2025 20:30:17 +0000 (+0000) Subject: EDAC/mc_sysfs: Increase legacy channel support to 16 X-Git-Tag: v6.18-rc1~194^2~2 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6e1c2c6c2c40ce99e0d2633b212f43c702c1a002;p=thirdparty%2Flinux.git EDAC/mc_sysfs: Increase legacy channel support to 16 Newer AMD systems can support up to 16 channels per EDAC "mc" device. These are detected by the EDAC module running on the device, and the current EDAC interface is appropriately enumerated. The legacy EDAC sysfs interface however, provides device attributes for channels 0 through 11 only. Consequently, the last four channels, 12 through 15, will not be enumerated and will not be visible through the legacy sysfs interface. Add additional device attributes to ensure that all 16 channels, if present, are enumerated by and visible through the legacy EDAC sysfs interface. Signed-off-by: Avadhut Naik Signed-off-by: Borislav Petkov (AMD) Link: https://lore.kernel.org/20250916203242.1281036-1-avadhut.naik@amd.com --- diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index 0f338adf7d937..8689631f19053 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -305,6 +305,14 @@ DEVICE_CHANNEL(ch10_dimm_label, S_IRUGO | S_IWUSR, channel_dimm_label_show, channel_dimm_label_store, 10); DEVICE_CHANNEL(ch11_dimm_label, S_IRUGO | S_IWUSR, channel_dimm_label_show, channel_dimm_label_store, 11); +DEVICE_CHANNEL(ch12_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 12); +DEVICE_CHANNEL(ch13_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 13); +DEVICE_CHANNEL(ch14_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 14); +DEVICE_CHANNEL(ch15_dimm_label, S_IRUGO | S_IWUSR, + channel_dimm_label_show, channel_dimm_label_store, 15); /* Total possible dynamic DIMM Label attribute file table */ static struct attribute *dynamic_csrow_dimm_attr[] = { @@ -320,6 +328,10 @@ static struct attribute *dynamic_csrow_dimm_attr[] = { &dev_attr_legacy_ch9_dimm_label.attr.attr, &dev_attr_legacy_ch10_dimm_label.attr.attr, &dev_attr_legacy_ch11_dimm_label.attr.attr, + &dev_attr_legacy_ch12_dimm_label.attr.attr, + &dev_attr_legacy_ch13_dimm_label.attr.attr, + &dev_attr_legacy_ch14_dimm_label.attr.attr, + &dev_attr_legacy_ch15_dimm_label.attr.attr, NULL }; @@ -348,6 +360,14 @@ DEVICE_CHANNEL(ch10_ce_count, S_IRUGO, channel_ce_count_show, NULL, 10); DEVICE_CHANNEL(ch11_ce_count, S_IRUGO, channel_ce_count_show, NULL, 11); +DEVICE_CHANNEL(ch12_ce_count, S_IRUGO, + channel_ce_count_show, NULL, 12); +DEVICE_CHANNEL(ch13_ce_count, S_IRUGO, + channel_ce_count_show, NULL, 13); +DEVICE_CHANNEL(ch14_ce_count, S_IRUGO, + channel_ce_count_show, NULL, 14); +DEVICE_CHANNEL(ch15_ce_count, S_IRUGO, + channel_ce_count_show, NULL, 15); /* Total possible dynamic ce_count attribute file table */ static struct attribute *dynamic_csrow_ce_count_attr[] = { @@ -363,6 +383,10 @@ static struct attribute *dynamic_csrow_ce_count_attr[] = { &dev_attr_legacy_ch9_ce_count.attr.attr, &dev_attr_legacy_ch10_ce_count.attr.attr, &dev_attr_legacy_ch11_ce_count.attr.attr, + &dev_attr_legacy_ch12_ce_count.attr.attr, + &dev_attr_legacy_ch13_ce_count.attr.attr, + &dev_attr_legacy_ch14_ce_count.attr.attr, + &dev_attr_legacy_ch15_ce_count.attr.attr, NULL };