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#include "amd64_edac.h"
/*
* accept a hex value and store it into the virtual error register file, field:
* nbeal and nbeah. Assume virtual error values have already been set for: NBSL,
* NBSH and NBCFG. Then proceed to map the error values to a MC, CSROW and
* CHANNEL
*/
static ssize_t amd64_nbea_store(struct mem_ctl_info *mci, const char *data,
size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
u64 value;
int ret = 0;
struct mce m;
ret = strict_strtoull(data, 16, &value);
if (ret != -EINVAL) {
struct err_regs *regs = &pvt->ctl_error_info;
debugf0("received NBEA= 0x%llx\n", value);
/* place the value into the virtual error packet */
pvt->ctl_error_info.nbeal = (u32) value;
value >>= 32;
pvt->ctl_error_info.nbeah = (u32) value;
m.addr = value;
m.status = regs->nbsl | ((u64)regs->nbsh << 32);
/* Process the Mapping request */
/* TODO: Add race prevention */
amd_decode_nb_mce(pvt->mc_node_id, &m, regs->nbcfg);
return count;
}
return ret;
}
/* display back what the last NBEA (MCA NB Address (MC4_ADDR)) was written */
static ssize_t amd64_nbea_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
u64 value;
value = pvt->ctl_error_info.nbeah;
value <<= 32;
value |= pvt->ctl_error_info.nbeal;
return sprintf(data, "%llx\n", value);
}
/* store the NBSL (MCA NB Status Low (MC4_STATUS)) value user desires */
static ssize_t amd64_nbsl_store(struct mem_ctl_info *mci, const char *data,
size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 16, &value);
if (ret != -EINVAL) {
debugf0("received NBSL= 0x%lx\n", value);
pvt->ctl_error_info.nbsl = (u32) value;
return count;
}
return ret;
}
/* display back what the last NBSL value written */
static ssize_t amd64_nbsl_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
u32 value;
value = pvt->ctl_error_info.nbsl;
return sprintf(data, "%x\n", value);
}
/* store the NBSH (MCA NB Status High) value user desires */
static ssize_t amd64_nbsh_store(struct mem_ctl_info *mci, const char *data,
size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 16, &value);
if (ret != -EINVAL) {
debugf0("received NBSH= 0x%lx\n", value);
pvt->ctl_error_info.nbsh = (u32) value;
return count;
}
return ret;
}
/* display back what the last NBSH value written */
static ssize_t amd64_nbsh_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
u32 value;
value = pvt->ctl_error_info.nbsh;
return sprintf(data, "%x\n", value);
}
/* accept and store the NBCFG (MCA NB Configuration) value user desires */
static ssize_t amd64_nbcfg_store(struct mem_ctl_info *mci,
const char *data, size_t count)
{
struct amd64_pvt *pvt = mci->pvt_info;
unsigned long value;
int ret = 0;
ret = strict_strtoul(data, 16, &value);
if (ret != -EINVAL) {
debugf0("received NBCFG= 0x%lx\n", value);
pvt->ctl_error_info.nbcfg = (u32) value;
return count;
}
return ret;
}
/* various show routines for the controls of a MCI */
static ssize_t amd64_nbcfg_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%x\n", pvt->ctl_error_info.nbcfg);
}
static ssize_t amd64_dhar_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%x\n", pvt->dhar);
}
static ssize_t amd64_dbam_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%x\n", pvt->dbam0);
}
static ssize_t amd64_topmem_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%llx\n", pvt->top_mem);
}
static ssize_t amd64_topmem2_show(struct mem_ctl_info *mci, char *data)
{
struct amd64_pvt *pvt = mci->pvt_info;
return sprintf(data, "%llx\n", pvt->top_mem2);
}
static ssize_t amd64_hole_show(struct mem_ctl_info *mci, char *data)
{
u64 hole_base = 0;
u64 hole_offset = 0;
u64 hole_size = 0;
amd64_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
*/
struct mcidev_sysfs_attribute amd64_dbg_attrs[] = {
{
.attr = {
.name = "nbea_ctl",
.mode = (S_IRUGO | S_IWUSR)
},
.show = amd64_nbea_show,
.store = amd64_nbea_store,
},
{
.attr = {
.name = "nbsl_ctl",
.mode = (S_IRUGO | S_IWUSR)
},
.show = amd64_nbsl_show,
.store = amd64_nbsl_store,
},
{
.attr = {
.name = "nbsh_ctl",
.mode = (S_IRUGO | S_IWUSR)
},
.show = amd64_nbsh_show,
.store = amd64_nbsh_store,
},
{
.attr = {
.name = "nbcfg_ctl",
.mode = (S_IRUGO | S_IWUSR)
},
.show = amd64_nbcfg_show,
.store = amd64_nbcfg_store,
},
{
.attr = {
.name = "dhar",
.mode = (S_IRUGO)
},
.show = amd64_dhar_show,
.store = NULL,
},
{
.attr = {
.name = "dbam",
.mode = (S_IRUGO)
},
.show = amd64_dbam_show,
.store = NULL,
},
{
.attr = {
.name = "topmem",
.mode = (S_IRUGO)
},
.show = amd64_topmem_show,
.store = NULL,
},
{
.attr = {
.name = "topmem2",
.mode = (S_IRUGO)
},
.show = amd64_topmem2_show,
.store = NULL,
},
{
.attr = {
.name = "dram_hole",
.mode = (S_IRUGO)
},
.show = amd64_hole_show,
.store = NULL,
},
};
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