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authorBorislav Petkov <bp@suse.de>2014-11-22 13:35:26 +0300
committerBorislav Petkov <bp@suse.de>2014-11-25 15:09:42 +0300
commitb18f3864bfb4ef2af0e25b6ed5e1292f2ac36878 (patch)
treeaf5cbfd24c8e6dcfae31c6a6046ff645138ce6cb /drivers/edac
parent21690934d93408bb7247943f886b960cf30ecd19 (diff)
downloadlinux-b18f3864bfb4ef2af0e25b6ed5e1292f2ac36878.tar.xz
EDAC, mce_amd_inj: Add hw-injection attributes
Expose struct mce->inject_flags. Signed-off-by: Borislav Petkov <bp@suse.de>
Diffstat (limited to 'drivers/edac')
-rw-r--r--drivers/edac/mce_amd_inj.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/edac/mce_amd_inj.c b/drivers/edac/mce_amd_inj.c
index 9b5ca92737a2..5a758d63a8cc 100644
--- a/drivers/edac/mce_amd_inj.c
+++ b/drivers/edac/mce_amd_inj.c
@@ -78,6 +78,44 @@ static int toggle_hw_mce_inject(unsigned int cpu, bool enable)
return err;
}
+static int flags_get(void *data, u64 *val)
+{
+ struct mce *m = (struct mce *)data;
+
+ *val = m->inject_flags;
+
+ return 0;
+}
+
+static int flags_set(void *data, u64 val)
+{
+ struct mce *m = (struct mce *)data;
+
+ m->inject_flags = (u8)val;
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(flags_fops, flags_get, flags_set, "%llu\n");
+
+/*
+ * On which CPU to inject?
+ */
+MCE_INJECT_GET(extcpu);
+
+static int inj_extcpu_set(void *data, u64 val)
+{
+ struct mce *m = (struct mce *)data;
+
+ if (val >= nr_cpu_ids || !cpu_online(val)) {
+ pr_err("%s: Invalid CPU: %llu\n", __func__, val);
+ return -EINVAL;
+ }
+ m->extcpu = val;
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(extcpu_fops, inj_extcpu_get, inj_extcpu_set, "%llu\n");
+
/*
* This denotes into which bank we're injecting and triggers
* the injection, at the same time.
@@ -119,6 +157,8 @@ struct dfs_node {
{ .name = "misc", .fops = &misc_fops },
{ .name = "addr", .fops = &addr_fops },
{ .name = "bank", .fops = &bank_fops },
+ { .name = "flags", .fops = &flags_fops },
+ { .name = "cpu", .fops = &extcpu_fops },
};
static int __init init_mce_inject(void)