tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#include "amd64_edac.h"
2
3#define EDAC_DCT_ATTR_SHOW(reg) \
4static ssize_t amd64_##reg##_show(struct device *dev, \
5 struct device_attribute *mattr, \
6 char *data) \
7{ \
8 struct mem_ctl_info *mci = to_mci(dev); \
9 struct amd64_pvt *pvt = mci->pvt_info; \
10 return sprintf(data, "0x%016llx\n", (u64)pvt->reg); \
11}
12
13EDAC_DCT_ATTR_SHOW(dhar);
14EDAC_DCT_ATTR_SHOW(dbam0);
15EDAC_DCT_ATTR_SHOW(top_mem);
16EDAC_DCT_ATTR_SHOW(top_mem2);
17
18static ssize_t amd64_hole_show(struct device *dev,
19 struct device_attribute *mattr,
20 char *data)
21{
22 struct mem_ctl_info *mci = to_mci(dev);
23
24 u64 hole_base = 0;
25 u64 hole_offset = 0;
26 u64 hole_size = 0;
27
28 amd64_get_dram_hole_info(mci, &hole_base, &hole_offset, &hole_size);
29
30 return sprintf(data, "%llx %llx %llx\n", hole_base, hole_offset,
31 hole_size);
32}
33
34/*
35 * update NUM_DBG_ATTRS in case you add new members
36 */
37static DEVICE_ATTR(dhar, S_IRUGO, amd64_dhar_show, NULL);
38static DEVICE_ATTR(dbam, S_IRUGO, amd64_dbam0_show, NULL);
39static DEVICE_ATTR(topmem, S_IRUGO, amd64_top_mem_show, NULL);
40static DEVICE_ATTR(topmem2, S_IRUGO, amd64_top_mem2_show, NULL);
41static DEVICE_ATTR(dram_hole, S_IRUGO, amd64_hole_show, NULL);
42
43int amd64_create_sysfs_dbg_files(struct mem_ctl_info *mci)
44{
45 int rc;
46
47 rc = device_create_file(&mci->dev, &dev_attr_dhar);
48 if (rc < 0)
49 return rc;
50 rc = device_create_file(&mci->dev, &dev_attr_dbam);
51 if (rc < 0)
52 return rc;
53 rc = device_create_file(&mci->dev, &dev_attr_topmem);
54 if (rc < 0)
55 return rc;
56 rc = device_create_file(&mci->dev, &dev_attr_topmem2);
57 if (rc < 0)
58 return rc;
59 rc = device_create_file(&mci->dev, &dev_attr_dram_hole);
60 if (rc < 0)
61 return rc;
62
63 return 0;
64}
65
66void amd64_remove_sysfs_dbg_files(struct mem_ctl_info *mci)
67{
68 device_remove_file(&mci->dev, &dev_attr_dhar);
69 device_remove_file(&mci->dev, &dev_attr_dbam);
70 device_remove_file(&mci->dev, &dev_attr_topmem);
71 device_remove_file(&mci->dev, &dev_attr_topmem2);
72 device_remove_file(&mci->dev, &dev_attr_dram_hole);
73}