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path: root/drivers/edac/amd64_edac.c
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Diffstat (limited to 'drivers/edac/amd64_edac.c')
-rw-r--r--drivers/edac/amd64_edac.c65
1 files changed, 59 insertions, 6 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 543221e3fe9b..b00dea78541d 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -500,8 +500,8 @@ static int input_addr_to_csrow(struct mem_ctl_info *mci, u64 input_addr)
* complete 32-bit values despite the fact that the bitfields in the DHAR
* only represent bits 31-24 of the base and offset values.
*/
-int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
- u64 *hole_offset, u64 *hole_size)
+static int get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
+ u64 *hole_offset, u64 *hole_size)
{
struct amd64_pvt *pvt = mci->pvt_info;
@@ -554,7 +554,61 @@ int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base,
return 0;
}
-EXPORT_SYMBOL_GPL(amd64_get_dram_hole_info);
+
+#ifdef CONFIG_EDAC_DEBUG
+#define EDAC_DCT_ATTR_SHOW(reg) \
+static ssize_t reg##_show(struct device *dev, \
+ struct device_attribute *mattr, char *data) \
+{ \
+ struct mem_ctl_info *mci = to_mci(dev); \
+ struct amd64_pvt *pvt = mci->pvt_info; \
+ \
+ return sprintf(data, "0x%016llx\n", (u64)pvt->reg); \
+}
+
+EDAC_DCT_ATTR_SHOW(dhar);
+EDAC_DCT_ATTR_SHOW(dbam0);
+EDAC_DCT_ATTR_SHOW(top_mem);
+EDAC_DCT_ATTR_SHOW(top_mem2);
+
+static ssize_t hole_show(struct device *dev, struct device_attribute *mattr,
+ char *data)
+{
+ struct mem_ctl_info *mci = to_mci(dev);
+
+ u64 hole_base = 0;
+ u64 hole_offset = 0;
+ u64 hole_size = 0;
+
+ get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size);
+
+ return sprintf(data, "%llx %llx %llx\n", hole_base, hole_offset,
+ hole_size);
+}
+
+/*
+ * update NUM_DBG_ATTRS in case you add new members
+ */
+static DEVICE_ATTR(dhar, S_IRUGO, dhar_show, NULL);
+static DEVICE_ATTR(dbam, S_IRUGO, dbam0_show, NULL);
+static DEVICE_ATTR(topmem, S_IRUGO, top_mem_show, NULL);
+static DEVICE_ATTR(topmem2, S_IRUGO, top_mem2_show, NULL);
+static DEVICE_ATTR(dram_hole, S_IRUGO, hole_show, NULL);
+
+static struct attribute *dbg_attrs[] = {
+ &dev_attr_dhar.attr,
+ &dev_attr_dbam.attr,
+ &dev_attr_topmem.attr,
+ &dev_attr_topmem2.attr,
+ &dev_attr_dram_hole.attr,
+ NULL
+};
+
+static const struct attribute_group dbg_group = {
+ .attrs = dbg_attrs,
+};
+#endif /* CONFIG_EDAC_DEBUG */
+
/*
* Return the DramAddr that the SysAddr given by @sys_addr maps to. It is
@@ -593,8 +647,7 @@ static u64 sys_addr_to_dram_addr(struct mem_ctl_info *mci, u64 sys_addr)
dram_base = get_dram_base(pvt, pvt->mc_node_id);
- ret = amd64_get_dram_hole_info(mci, &hole_base, &hole_offset,
- &hole_size);
+ ret = get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size);
if (!ret) {
if ((sys_addr >= (1ULL << 32)) &&
(sys_addr < ((1ULL << 32) + hole_size))) {
@@ -3415,7 +3468,7 @@ static struct amd64_family_type *per_family_init(struct amd64_pvt *pvt)
static const struct attribute_group *amd64_edac_attr_groups[] = {
#ifdef CONFIG_EDAC_DEBUG
- &amd64_edac_dbg_group,
+ &dbg_group,
#endif
#ifdef CONFIG_EDAC_AMD64_ERROR_INJECTION
&amd64_edac_inj_group,