1 // SPDX-License-Identifier: GPL-2.0
2 #include "amd64_edac.h"
3 
4 #define EDAC_DCT_ATTR_SHOW(reg)						\
5 static ssize_t amd64_##reg##_show(struct device *dev,			\
6 			       struct device_attribute *mattr,		\
7 			       char *data)				\
8 {									\
9 	struct mem_ctl_info *mci = to_mci(dev);				\
10 	struct amd64_pvt *pvt = mci->pvt_info;				\
11 		return sprintf(data, "0x%016llx\n", (u64)pvt->reg);	\
12 }
13 
14 EDAC_DCT_ATTR_SHOW(dhar);
15 EDAC_DCT_ATTR_SHOW(dbam0);
16 EDAC_DCT_ATTR_SHOW(top_mem);
17 EDAC_DCT_ATTR_SHOW(top_mem2);
18 
amd64_hole_show(struct device * dev,struct device_attribute * mattr,char * data)19 static ssize_t amd64_hole_show(struct device *dev,
20 			       struct device_attribute *mattr,
21 			       char *data)
22 {
23 	struct mem_ctl_info *mci = to_mci(dev);
24 
25 	u64 hole_base = 0;
26 	u64 hole_offset = 0;
27 	u64 hole_size = 0;
28 
29 	amd64_get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size);
30 
31 	return sprintf(data, "%llx %llx %llx\n", hole_base, hole_offset,
32 						 hole_size);
33 }
34 
35 /*
36  * update NUM_DBG_ATTRS in case you add new members
37  */
38 static DEVICE_ATTR(dhar, S_IRUGO, amd64_dhar_show, NULL);
39 static DEVICE_ATTR(dbam, S_IRUGO, amd64_dbam0_show, NULL);
40 static DEVICE_ATTR(topmem, S_IRUGO, amd64_top_mem_show, NULL);
41 static DEVICE_ATTR(topmem2, S_IRUGO, amd64_top_mem2_show, NULL);
42 static DEVICE_ATTR(dram_hole, S_IRUGO, amd64_hole_show, NULL);
43 
44 static struct attribute *amd64_edac_dbg_attrs[] = {
45 	&dev_attr_dhar.attr,
46 	&dev_attr_dbam.attr,
47 	&dev_attr_topmem.attr,
48 	&dev_attr_topmem2.attr,
49 	&dev_attr_dram_hole.attr,
50 	NULL
51 };
52 
53 const struct attribute_group amd64_edac_dbg_group = {
54 	.attrs = amd64_edac_dbg_attrs,
55 };
56