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Message-Id: <1331122278-28458-5-git-send-email-mchehab@redhat.com>
Date: Wed, 7 Mar 2012 09:11:16 -0300
From: Mauro Carvalho Chehab <mchehab@...hat.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Mauro Carvalho Chehab <mchehab@...hat.com>,
Linux Edac Mailing List <linux-edac@...r.kernel.org>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/6] edac: add a sysfs node that stores the max possible memory location
This is useful for edac utilities that want to print the memory layout,
including the empty slots.
Signed-off-by: Mauro Carvalho Chehab <mchehab@...hat.com>
---
drivers/edac/edac_mc_sysfs.c | 17 +++++++++++++++++
1 files changed, 17 insertions(+), 0 deletions(-)
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index 116934c..5b48528 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -744,6 +744,21 @@ static ssize_t mci_size_mb_show(struct mem_ctl_info *mci, char *data,
return sprintf(data, "%u\n", PAGES_TO_MiB(total_pages));
}
+static ssize_t mci_max_location_show(struct mem_ctl_info *mci, char *data,
+ void *priv)
+{
+ int i;
+ char *p = data;
+
+ for (i = 0; i < mci->n_layers; i++) {
+ p += sprintf(p, "%s %d ",
+ edac_layer_name[mci->layers[i].type],
+ mci->layers[i].size - 1);
+ }
+
+ return p - data;
+}
+
#ifdef CONFIG_EDAC_DEBUG
static ssize_t edac_fake_inject_show(struct mem_ctl_info *mci,
char *data, void *priv)
@@ -839,6 +854,7 @@ MCIDEV_ATTR(ue_noinfo_count, S_IRUGO, mci_ue_noinfo_show, NULL);
MCIDEV_ATTR(ce_noinfo_count, S_IRUGO, mci_ce_noinfo_show, NULL);
MCIDEV_ATTR(ue_count, S_IRUGO, mci_ue_count_show, NULL);
MCIDEV_ATTR(ce_count, S_IRUGO, mci_ce_count_show, NULL);
+MCIDEV_ATTR(max_location, S_IRUGO, mci_max_location_show, NULL);
/* memory scrubber attribute file */
MCIDEV_ATTR(sdram_scrub_rate, S_IRUGO | S_IWUSR, mci_sdram_scrub_rate_show,
@@ -854,6 +870,7 @@ static struct mcidev_sysfs_attribute *mci_attr[] = {
&mci_attr_ue_count,
&mci_attr_ce_count,
&mci_attr_sdram_scrub_rate,
+ &mci_attr_max_location,
NULL
};
--
1.7.8
--
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