drivers/edac/amd64_edac_dbg.c

   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
  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 };