linux/drivers/edac/amd64_edac_dbg.c
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   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}
  74
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