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edac: change the mem allocation scheme to make Documentation/kobject.txt happy 

Kernel kobjects have rigid rules: each container object should be
dynamically allocated, and can't be allocated into a single kmalloc.

EDAC never obeyed this rule: it has a single malloc function that
allocates all needed data into a single kzalloc.

As this is not accepted anymore, change the allocation schema of the
EDAC *_info structs to enforce this Kernel standard.

Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: Aristeu Rozanski <arozansk@redhat.com>
Cc: Doug Thompson <norsk5@yahoo.com>
Cc: Greg K H <gregkh@linuxfoundation.org>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: Mark Gross <mark.gross@intel.com>
Cc: Tim Small <tim@buttersideup.com>
Cc: Ranganathan Desikan <ravi@jetztechnologies.com>
Cc: "Arvind R." <arvino55@gmail.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Egor Martovetsky <egor@pasemi.com>
Cc: Michal Marek <mmarek@suse.cz>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shaohui Xie <Shaohui.Xie@freescale.com>
Cc: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2012-04-24 15:05:43 -03:00
parent e39f4ea9b0
commit de3910eb79
22 changed files with 247 additions and 169 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/edac/amd64_edac.c
View File

@ -2205,6 +2205,7 @@ static u32 amd64_csrow_nr_pages(struct amd64_pvt *pvt, u8 dct, int csrow_nr)
static int init_csrows(struct mem_ctl_info *mci)
{
struct csrow_info *csrow;
struct dimm_info *dimm;
struct amd64_pvt *pvt = mci->pvt_info;
u64 base, mask;
u32 val;
@ -2222,7 +2223,7 @@ static int init_csrows(struct mem_ctl_info *mci)
!!(val & NBCFG_CHIPKILL), !!(val & NBCFG_ECC_ENABLE));
for_each_chip_select(i, 0, pvt) {
csrow = &mci->csrows[i];
csrow = mci->csrows[i];
if (!csrow_enabled(i, 0, pvt) && !csrow_enabled(i, 1, pvt)) {
debugf1("----CSROW %d EMPTY for node %d\n", i,
@ -2257,9 +2258,10 @@ static int init_csrows(struct mem_ctl_info *mci)
edac_mode = EDAC_NONE;
for (j = 0; j < pvt->channel_count; j++) {
csrow->channels[j].dimm->mtype = mtype;
csrow->channels[j].dimm->edac_mode = edac_mode;
csrow->channels[j].dimm->nr_pages = nr_pages;
dimm = csrow->channels[j]->dimm;
dimm->mtype = mtype;
dimm->edac_mode = edac_mode;
dimm->nr_pages = nr_pages;
}
}

8
drivers/edac/amd76x_edac.c
View File

@ -146,7 +146,7 @@ static int amd76x_process_error_info(struct mem_ctl_info *mci,
if (handle_errors) {
row = (info->ecc_mode_status >> 4) & 0xf;
edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
mci->csrows[row].first_page, 0, 0,
mci->csrows[row]->first_page, 0, 0,
row, 0, -1,
mci->ctl_name, "", NULL);
}
@ -161,7 +161,7 @@ static int amd76x_process_error_info(struct mem_ctl_info *mci,
if (handle_errors) {
row = info->ecc_mode_status & 0xf;
edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
mci->csrows[row].first_page, 0, 0,
mci->csrows[row]->first_page, 0, 0,
row, 0, -1,
mci->ctl_name, "", NULL);
}
@ -194,8 +194,8 @@ static void amd76x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
int index;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
dimm = csrow->channels[0].dimm;
csrow = mci->csrows[index];
dimm = csrow->channels[0]->dimm;
/* find the DRAM Chip Select Base address and mask */
pci_read_config_dword(pdev,

8
drivers/edac/cell_edac.c
View File

@ -33,7 +33,7 @@ struct cell_edac_priv
static void cell_edac_count_ce(struct mem_ctl_info *mci, int chan, u64 ar)
{
struct cell_edac_priv *priv = mci->pvt_info;
struct csrow_info *csrow = &mci->csrows[0];
struct csrow_info *csrow = mci->csrows[0];
unsigned long address, pfn, offset, syndrome;
dev_dbg(mci->pdev, "ECC CE err on node %d, channel %d, ar = 0x%016llx\n",
@ -56,7 +56,7 @@ static void cell_edac_count_ce(struct mem_ctl_info *mci, int chan, u64 ar)
static void cell_edac_count_ue(struct mem_ctl_info *mci, int chan, u64 ar)
{
struct cell_edac_priv *priv = mci->pvt_info;
struct csrow_info *csrow = &mci->csrows[0];
struct csrow_info *csrow = mci->csrows[0];
unsigned long address, pfn, offset;
dev_dbg(mci->pdev, "ECC UE err on node %d, channel %d, ar = 0x%016llx\n",
@ -126,7 +126,7 @@ static void cell_edac_check(struct mem_ctl_info *mci)
static void __devinit cell_edac_init_csrows(struct mem_ctl_info *mci)
{
struct csrow_info *csrow = &mci->csrows[0];
struct csrow_info *csrow = mci->csrows[0];
struct dimm_info *dimm;
struct cell_edac_priv *priv = mci->pvt_info;
struct device_node *np;
@ -150,7 +150,7 @@ static void __devinit cell_edac_init_csrows(struct mem_ctl_info *mci)
csrow->last_page = csrow->first_page + nr_pages - 1;
for (j = 0; j < csrow->nr_channels; j++) {
dimm = csrow->channels[j].dimm;
dimm = csrow->channels[j]->dimm;
dimm->mtype = MEM_XDR;
dimm->edac_mode = EDAC_SECDED;
dimm->nr_pages = nr_pages / csrow->nr_channels;

8
drivers/edac/cpc925_edac.c
View File

@ -348,7 +348,7 @@ static void cpc925_init_csrows(struct mem_ctl_info *mci)
if (bba == 0)
continue; /* not populated */
csrow = &mci->csrows[index];
csrow = mci->csrows[index];
row_size = bba * (1UL << 28); /* 256M */
csrow->first_page = last_nr_pages;
@ -380,7 +380,7 @@ static void cpc925_init_csrows(struct mem_ctl_info *mci)
break;
}
for (j = 0; j < csrow->nr_channels; j++) {
dimm = csrow->channels[j].dimm;
dimm = csrow->channels[j]->dimm;
dimm->nr_pages = nr_pages / csrow->nr_channels;
dimm->mtype = MEM_RDDR;
dimm->edac_mode = EDAC_SECDED;
@ -463,7 +463,7 @@ static void cpc925_mc_get_pfn(struct mem_ctl_info *mci, u32 mear,
*csrow = rank;
#ifdef CONFIG_EDAC_DEBUG
if (mci->csrows[rank].first_page == 0) {
if (mci->csrows[rank]->first_page == 0) {
cpc925_mc_printk(mci, KERN_ERR, "ECC occurs in a "
"non-populated csrow, broken hardware?\n");
return;
@ -471,7 +471,7 @@ static void cpc925_mc_get_pfn(struct mem_ctl_info *mci, u32 mear,
#endif
/* Revert csrow number */
pa = mci->csrows[rank].first_page << PAGE_SHIFT;
pa = mci->csrows[rank]->first_page << PAGE_SHIFT;
/* Revert column address */
col += bcnt;

4
drivers/edac/e752x_edac.c
View File

@ -1096,7 +1096,7 @@ static void e752x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
for (last_cumul_size = index = 0; index < mci->nr_csrows; index++) {
/* mem_dev 0=x8, 1=x4 */
mem_dev = (dra >> (index * 4 + 2)) & 0x3;
csrow = &mci->csrows[remap_csrow_index(mci, index)];
csrow = mci->csrows[remap_csrow_index(mci, index)];
mem_dev = (mem_dev == 2);
pci_read_config_byte(pdev, E752X_DRB + index, &value);
@ -1127,7 +1127,7 @@ static void e752x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
} else
edac_mode = EDAC_NONE;
for (i = 0; i < csrow->nr_channels; i++) {
struct dimm_info *dimm = csrow->channels[i].dimm;
struct dimm_info *dimm = csrow->channels[i]->dimm;
debugf3("Initializing rank at (%i,%i)\n", index, i);
dimm->nr_pages = nr_pages / csrow->nr_channels;

4
drivers/edac/e7xxx_edac.c
View File

@ -378,7 +378,7 @@ static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
for (index = 0; index < mci->nr_csrows; index++) {
/* mem_dev 0=x8, 1=x4 */
mem_dev = (dra >> (index * 4 + 3)) & 0x1;
csrow = &mci->csrows[index];
csrow = mci->csrows[index];
pci_read_config_byte(pdev, E7XXX_DRB + index, &value);
/* convert a 64 or 32 MiB DRB to a page size. */
@ -409,7 +409,7 @@ static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
edac_mode = EDAC_NONE;
for (j = 0; j < drc_chan + 1; j++) {
dimm = csrow->channels[j].dimm;
dimm = csrow->channels[j]->dimm;
dimm->nr_pages = nr_pages / (drc_chan + 1);
dimm->grain = 1 << 12; /* 4KiB - resolution of CELOG */

107
drivers/edac/edac_mc.c
View File

@ -210,15 +210,15 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
{
struct mem_ctl_info *mci;
struct edac_mc_layer *layer;
struct csrow_info *csi, *csr;
struct rank_info *chi, *chp, *chan;
struct csrow_info *csr;
struct rank_info *chan;
struct dimm_info *dimm;
u32 *ce_per_layer[EDAC_MAX_LAYERS], *ue_per_layer[EDAC_MAX_LAYERS];
unsigned pos[EDAC_MAX_LAYERS];
unsigned size, tot_dimms = 1, count = 1;
unsigned tot_csrows = 1, tot_channels = 1, tot_errcount = 0;
void *pvt, *p, *ptr = NULL;
int i, j, row, chn, n, len;
int i, j, row, chn, n, len, off;
bool per_rank = false;
BUG_ON(n_layers > EDAC_MAX_LAYERS || n_layers == 0);
@ -244,9 +244,6 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
*/
mci = edac_align_ptr(&ptr, sizeof(*mci), 1);
layer = edac_align_ptr(&ptr, sizeof(*layer), n_layers);
csi = edac_align_ptr(&ptr, sizeof(*csi), tot_csrows);
chi = edac_align_ptr(&ptr, sizeof(*chi), tot_csrows * tot_channels);
dimm = edac_align_ptr(&ptr, sizeof(*dimm), tot_dimms);
for (i = 0; i < n_layers; i++) {
count *= layers[i].size;
debugf4("%s: errcount layer %d size %d\n", __func__, i, count);
@ -264,6 +261,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
tot_dimms,
per_rank ? "ranks" : "dimms",
tot_csrows * tot_channels);
mci = kzalloc(size, GFP_KERNEL);
if (mci == NULL)
return NULL;
@ -272,9 +270,6 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
* rather than an imaginary chunk of memory located at address 0.
*/
layer = (struct edac_mc_layer *)(((char *)mci) + ((unsigned long)layer));
csi = (struct csrow_info *)(((char *)mci) + ((unsigned long)csi));
chi = (struct rank_info *)(((char *)mci) + ((unsigned long)chi));
dimm = (struct dimm_info *)(((char *)mci) + ((unsigned long)dimm));
for (i = 0; i < n_layers; i++) {
mci->ce_per_layer[i] = (u32 *)((char *)mci + ((unsigned long)ce_per_layer[i]));
mci->ue_per_layer[i] = (u32 *)((char *)mci + ((unsigned long)ue_per_layer[i]));
@ -283,8 +278,6 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
/* setup index and various internal pointers */
mci->mc_idx = mc_num;
mci->csrows = csi;
mci->dimms = dimm;
mci->tot_dimms = tot_dimms;
mci->pvt_info = pvt;
mci->n_layers = n_layers;
@ -295,39 +288,60 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
mci->mem_is_per_rank = per_rank;
/*
* Fill the csrow struct
* Alocate and fill the csrow/channels structs
*/
mci->csrows = kcalloc(sizeof(*mci->csrows), tot_csrows, GFP_KERNEL);
if (!mci->csrows)
goto error;
for (row = 0; row < tot_csrows; row++) {
csr = &csi[row];
csr = kzalloc(sizeof(**mci->csrows), GFP_KERNEL);
if (!csr)
goto error;
mci->csrows[row] = csr;
csr->csrow_idx = row;
csr->mci = mci;
csr->nr_channels = tot_channels;
chp = &chi[row * tot_channels];
csr->channels = chp;
csr->channels = kcalloc(sizeof(*csr->channels), tot_channels,
GFP_KERNEL);
if (!csr->channels)
goto error;
for (chn = 0; chn < tot_channels; chn++) {
chan = &chp[chn];
chan = kzalloc(sizeof(**csr->channels), GFP_KERNEL);
if (!chan)
goto error;
csr->channels[chn] = chan;
chan->chan_idx = chn;
chan->csrow = csr;
}
}
/*
* Fill the dimm struct
* Allocate and fill the dimm structs
*/
mci->dimms = kcalloc(sizeof(*mci->dimms), tot_dimms, GFP_KERNEL);
if (!mci->dimms)
goto error;
memset(&pos, 0, sizeof(pos));
row = 0;
chn = 0;
debugf4("%s: initializing %d %s\n", __func__, tot_dimms,
per_rank ? "ranks" : "dimms");
for (i = 0; i < tot_dimms; i++) {
chan = &csi[row].channels[chn];
dimm = EDAC_DIMM_PTR(layer, mci->dimms, n_layers,
pos[0], pos[1], pos[2]);
chan = mci->csrows[row]->channels[chn];
off = EDAC_DIMM_OFF(layer, n_layers, pos[0], pos[1], pos[2]);
if (off < 0 || off >= tot_dimms) {
edac_mc_printk(mci, KERN_ERR, "EDAC core bug: EDAC_DIMM_OFF is trying to do an illegal data access\n");
goto error;
}
dimm = kzalloc(sizeof(**mci->dimms), GFP_KERNEL);
mci->dimms[off] = dimm;
dimm->mci = mci;
debugf2("%s: %d: %s%zd (%d:%d:%d): row %d, chan %d\n", __func__,
i, per_rank ? "rank" : "dimm", (dimm - mci->dimms),
debugf2("%s: %d: %s%i (%d:%d:%d): row %d, chan %d\n", __func__,
i, per_rank ? "rank" : "dimm", off,
pos[0], pos[1], pos[2], row, chn);
/*
@ -381,6 +395,28 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
*/
return mci;
error:
if (mci->dimms) {
for (i = 0; i < tot_dimms; i++)
kfree(mci->dimms[i]);
kfree(mci->dimms);
}
if (mci->csrows) {
for (chn = 0; chn < tot_channels; chn++) {
csr = mci->csrows[chn];
if (csr) {
for (chn = 0; chn < tot_channels; chn++)
kfree(csr->channels[chn]);
kfree(csr);
}
kfree(mci->csrows[i]);
}
kfree(mci->csrows);
}
kfree(mci);
return NULL;
}
EXPORT_SYMBOL_GPL(edac_mc_alloc);
@ -393,10 +429,8 @@ void edac_mc_free(struct mem_ctl_info *mci)
{
debugf1("%s()\n", __func__);
/* the mci instance is freed here, when the sysfs object is dropped */
edac_unregister_sysfs(mci);
/* free the mci instance memory here */
kfree(mci);
}
EXPORT_SYMBOL_GPL(edac_mc_free);
@ -668,13 +702,12 @@ int edac_mc_add_mc(struct mem_ctl_info *mci)
for (i = 0; i < mci->nr_csrows; i++) {
int j;
edac_mc_dump_csrow(&mci->csrows[i]);
for (j = 0; j < mci->csrows[i].nr_channels; j++)
edac_mc_dump_channel(&mci->csrows[i].
channels[j]);
edac_mc_dump_csrow(mci->csrows[i]);
for (j = 0; j < mci->csrows[i]->nr_channels; j++)
edac_mc_dump_channel(mci->csrows[i]->channels[j]);
}
for (i = 0; i < mci->tot_dimms; i++)
edac_mc_dump_dimm(&mci->dimms[i]);
edac_mc_dump_dimm(mci->dimms[i]);
}
#endif
mutex_lock(&mem_ctls_mutex);
@ -793,17 +826,17 @@ static void edac_mc_scrub_block(unsigned long page, unsigned long offset,
/* FIXME - should return -1 */
int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci, unsigned long page)
{
struct csrow_info *csrows = mci->csrows;
struct csrow_info **csrows = mci->csrows;
int row, i, j, n;
debugf1("MC%d: %s(): 0x%lx\n", mci->mc_idx, __func__, page);
row = -1;
for (i = 0; i < mci->nr_csrows; i++) {
struct csrow_info *csrow = &csrows[i];
struct csrow_info *csrow = csrows[i];
n = 0;
for (j = 0; j < csrow->nr_channels; j++) {
struct dimm_info *dimm = csrow->channels[j].dimm;
struct dimm_info *dimm = csrow->channels[j]->dimm;
n += dimm->nr_pages;
}
if (n == 0)
@ -1062,7 +1095,7 @@ void edac_mc_handle_error(const enum hw_event_mc_err_type type,
p = label;
*p = '\0';
for (i = 0; i < mci->tot_dimms; i++) {
struct dimm_info *dimm = &mci->dimms[i];
struct dimm_info *dimm = mci->dimms[i];
if (top_layer >= 0 && top_layer != dimm->location[0])
continue;
@ -1120,13 +1153,13 @@ void edac_mc_handle_error(const enum hw_event_mc_err_type type,
strcpy(label, "unknown memory");
if (type == HW_EVENT_ERR_CORRECTED) {
if (row >= 0) {
mci->csrows[row].ce_count++;
mci->csrows[row]->ce_count++;
if (chan >= 0)
mci->csrows[row].channels[chan].ce_count++;
mci->csrows[row]->channels[chan]->ce_count++;
}
} else
if (row >= 0)
mci->csrows[row].ue_count++;
mci->csrows[row]->ue_count++;
}
/* Fill the RAM location data */

128
drivers/edac/edac_mc_sysfs.c
View File

@ -82,7 +82,7 @@ module_param_call(edac_mc_poll_msec, edac_set_poll_msec, param_get_int,
&edac_mc_poll_msec, 0644);
MODULE_PARM_DESC(edac_mc_poll_msec, "Polling period in milliseconds");
static struct device mci_pdev;
static struct device *mci_pdev;
/*
* various constants for Memory Controllers
@ -181,7 +181,7 @@ static ssize_t csrow_size_show(struct device *dev,
u32 nr_pages = 0;
for (i = 0; i < csrow->nr_channels; i++)
nr_pages += csrow->channels[i].dimm->nr_pages;
nr_pages += csrow->channels[i]->dimm->nr_pages;
return sprintf(data, "%u\n", PAGES_TO_MiB(nr_pages));
}
@ -190,7 +190,7 @@ static ssize_t csrow_mem_type_show(struct device *dev,
{
struct csrow_info *csrow = to_csrow(dev);
return sprintf(data, "%s\n", mem_types[csrow->channels[0].dimm->mtype]);
return sprintf(data, "%s\n", mem_types[csrow->channels[0]->dimm->mtype]);
}
static ssize_t csrow_dev_type_show(struct device *dev,
@ -198,7 +198,7 @@ static ssize_t csrow_dev_type_show(struct device *dev,
{
struct csrow_info *csrow = to_csrow(dev);
return sprintf(data, "%s\n", dev_types[csrow->channels[0].dimm->dtype]);
return sprintf(data, "%s\n", dev_types[csrow->channels[0]->dimm->dtype]);
}
static ssize_t csrow_edac_mode_show(struct device *dev,
@ -207,7 +207,7 @@ static ssize_t csrow_edac_mode_show(struct device *dev,
{
struct csrow_info *csrow = to_csrow(dev);
return sprintf(data, "%s\n", edac_caps[csrow->channels[0].dimm->edac_mode]);
return sprintf(data, "%s\n", edac_caps[csrow->channels[0]->dimm->edac_mode]);
}
/* show/store functions for DIMM Label attributes */
@ -217,7 +217,7 @@ static ssize_t channel_dimm_label_show(struct device *dev,
{
struct csrow_info *csrow = to_csrow(dev);
unsigned chan = to_channel(mattr);
struct rank_info *rank = &csrow->channels[chan];
struct rank_info *rank = csrow->channels[chan];
/* if field has not been initialized, there is nothing to send */
if (!rank->dimm->label[0])
@ -233,7 +233,7 @@ static ssize_t channel_dimm_label_store(struct device *dev,
{
struct csrow_info *csrow = to_csrow(dev);
unsigned chan = to_channel(mattr);
struct rank_info *rank = &csrow->channels[chan];
struct rank_info *rank = csrow->channels[chan];
ssize_t max_size = 0;
@ -250,7 +250,7 @@ static ssize_t channel_ce_count_show(struct device *dev,
{
struct csrow_info *csrow = to_csrow(dev);
unsigned chan = to_channel(mattr);
struct rank_info *rank = &csrow->channels[chan];
struct rank_info *rank = csrow->channels[chan];
return sprintf(data, "%u\n", rank->ce_count);
}
@ -283,9 +283,12 @@ static const struct attribute_group *csrow_attr_groups[] = {
NULL
};
static void csrow_attr_release(struct device *device)
static void csrow_attr_release(struct device *dev)
{
debugf1("Releasing csrow device %s\n", dev_name(device));
struct csrow_info *csrow = container_of(dev, struct csrow_info, dev);
debugf1("Releasing csrow device %s\n", dev_name(dev));
kfree(csrow);
}
static struct device_type csrow_attr_type = {
@ -352,7 +355,7 @@ static inline int nr_pages_per_csrow(struct csrow_info *csrow)
int chan, nr_pages = 0;
for (chan = 0; chan < csrow->nr_channels; chan++)
nr_pages += csrow->channels[chan].dimm->nr_pages;
nr_pages += csrow->channels[chan]->dimm->nr_pages;
return nr_pages;
}
@ -382,7 +385,7 @@ static int edac_create_csrow_object(struct mem_ctl_info *mci,
for (chan = 0; chan < csrow->nr_channels; chan++) {
/* Only expose populated DIMMs */
if (!csrow->channels[chan].dimm->nr_pages)
if (!csrow->channels[chan]->dimm->nr_pages)
continue;
err = device_create_file(&csrow->dev,
dynamic_csrow_dimm_attr[chan]);
@ -418,10 +421,10 @@ static int edac_create_csrow_objects(struct mem_ctl_info *mci)
struct csrow_info *csrow;
for (i = 0; i < mci->nr_csrows; i++) {
csrow = &mci->csrows[i];
csrow = mci->csrows[i];
if (!nr_pages_per_csrow(csrow))
continue;
err = edac_create_csrow_object(mci, &mci->csrows[i], i);
err = edac_create_csrow_object(mci, mci->csrows[i], i);
if (err < 0)
goto error;
}
@ -429,18 +432,18 @@ static int edac_create_csrow_objects(struct mem_ctl_info *mci)
error:
for (--i; i >= 0; i--) {
csrow = &mci->csrows[i];
csrow = mci->csrows[i];
if (!nr_pages_per_csrow(csrow))
continue;
for (chan = csrow->nr_channels - 1; chan >= 0; chan--) {
if (!csrow->channels[chan].dimm->nr_pages)
if (!csrow->channels[chan]->dimm->nr_pages)
continue;
device_remove_file(&csrow->dev,
dynamic_csrow_dimm_attr[chan]);
device_remove_file(&csrow->dev,
dynamic_csrow_ce_count_attr[chan]);
}
put_device(&mci->csrows[i].dev);
put_device(&mci->csrows[i]->dev);
}
return err;
@ -452,11 +455,11 @@ static void edac_delete_csrow_objects(struct mem_ctl_info *mci)
struct csrow_info *csrow;
for (i = mci->nr_csrows - 1; i >= 0; i--) {
csrow = &mci->csrows[i];
csrow = mci->csrows[i];
if (!nr_pages_per_csrow(csrow))
continue;
for (chan = csrow->nr_channels - 1; chan >= 0; chan--) {
if (!csrow->channels[chan].dimm->nr_pages)
if (!csrow->channels[chan]->dimm->nr_pages)
continue;
debugf1("Removing csrow %d channel %d sysfs nodes\n",
i, chan);
@ -465,8 +468,8 @@ static void edac_delete_csrow_objects(struct mem_ctl_info *mci)
device_remove_file(&csrow->dev,
dynamic_csrow_ce_count_attr[chan]);
}
put_device(&mci->csrows[i].dev);
device_del(&mci->csrows[i].dev);
put_device(&mci->csrows[i]->dev);
device_del(&mci->csrows[i]->dev);
}
}
#endif
@ -585,9 +588,12 @@ static const struct attribute_group *dimm_attr_groups[] = {
NULL
};
static void dimm_attr_release(struct device *device)
static void dimm_attr_release(struct device *dev)
{
debugf1("Releasing dimm device %s\n", dev_name(device));
struct dimm_info *dimm = container_of(dev, struct dimm_info, dev);
debugf1("Releasing dimm device %s\n", dev_name(dev));
kfree(dimm);
}
static struct device_type dimm_attr_type = {
@ -641,13 +647,13 @@ static ssize_t mci_reset_counters_store(struct device *dev,
mci->ce_noinfo_count = 0;
for (row = 0; row < mci->nr_csrows; row++) {
struct csrow_info *ri = &mci->csrows[row];
struct csrow_info *ri = mci->csrows[row];
ri->ue_count = 0;
ri->ce_count = 0;
for (chan = 0; chan < ri->nr_channels; chan++)
ri->channels[chan].ce_count = 0;
ri->channels[chan]->ce_count = 0;
}
cnt = 1;
@ -779,10 +785,10 @@ static ssize_t mci_size_mb_show(struct device *dev,
int total_pages = 0, csrow_idx, j;
for (csrow_idx = 0; csrow_idx < mci->nr_csrows; csrow_idx++) {
struct csrow_info *csrow = &mci->csrows[csrow_idx];
struct csrow_info *csrow = mci->csrows[csrow_idx];
for (j = 0; j < csrow->nr_channels; j++) {
struct dimm_info *dimm = csrow->channels[j].dimm;
struct dimm_info *dimm = csrow->channels[j]->dimm;
total_pages += dimm->nr_pages;
}
@ -889,9 +895,12 @@ static const struct attribute_group *mci_attr_groups[] = {
NULL
};
static void mci_attr_release(struct device *device)
static void mci_attr_release(struct device *dev)
{
debugf1("Releasing mci device %s\n", dev_name(device));
struct mem_ctl_info *mci = container_of(dev, struct mem_ctl_info, dev);
debugf1("Releasing csrow device %s\n", dev_name(dev));
kfree(mci);
}
static struct device_type mci_attr_type = {
@ -950,29 +959,28 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
{
int i, err;
debugf0("%s() idx=%d\n", __func__, mci->mc_idx);
/* get the /sys/devices/system/edac subsys reference */
mci->dev.type = &mci_attr_type;
device_initialize(&mci->dev);
mci->dev.parent = &mci_pdev;
mci->dev.bus = &mci->bus;
dev_set_name(&mci->dev, "mc%d", mci->mc_idx);
dev_set_drvdata(&mci->dev, mci);
pm_runtime_forbid(&mci->dev);
/*
* The memory controller needs its own bus, in order to avoid
* namespace conflicts at /sys/bus/edac.
*/
mci->bus.name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx);
if (!mci->bus.name)
return -ENOMEM;
debugf0("creating bus %s\n",mci->bus.name);
mci->bus.name = kstrdup(dev_name(&mci->dev), GFP_KERNEL);
err = bus_register(&mci->bus);
if (err < 0)
return err;
/* get the /sys/devices/system/edac subsys reference */
mci->dev.type = &mci_attr_type;
device_initialize(&mci->dev);
mci->dev.parent = mci_pdev;
mci->dev.bus = &mci->bus;
dev_set_name(&mci->dev, "mc%d", mci->mc_idx);
dev_set_drvdata(&mci->dev, mci);
pm_runtime_forbid(&mci->dev);
debugf0("%s(): creating device %s\n", __func__,
dev_name(&mci->dev));
err = device_add(&mci->dev);
@ -986,7 +994,7 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
* Create the dimm/rank devices
*/
for (i = 0; i < mci->tot_dimms; i++) {
struct dimm_info *dimm = &mci->dimms[i];
struct dimm_info *dimm = mci->dimms[i];
/* Only expose populated DIMMs */
if (dimm->nr_pages == 0)
continue;
@ -1023,7 +1031,7 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci)
fail:
for (i--; i >= 0; i--) {
struct dimm_info *dimm = &mci->dimms[i];
struct dimm_info *dimm = mci->dimms[i];
if (dimm->nr_pages == 0)
continue;
put_device(&dimm->dev);
@ -1053,7 +1061,7 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
#endif
for (i = 0; i < mci->tot_dimms; i++) {
struct dimm_info *dimm = &mci->dimms[i];
struct dimm_info *dimm = mci->dimms[i];
if (dimm->nr_pages == 0)
continue;
debugf0("%s(): removing device %s\n", __func__,
@ -1072,9 +1080,15 @@ void edac_unregister_sysfs(struct mem_ctl_info *mci)
kfree(mci->bus.name);
}
static void mc_attr_release(struct device *device)
static void mc_attr_release(struct device *dev)
{
debugf1("Releasing device %s\n", dev_name(device));
/*
* There's no container structure here, as this is just the mci
* parent device, used to create the /sys/devices/mc sysfs node.
* So, there are no attributes on it.
*/
debugf1("Releasing device %s\n", dev_name(dev));
kfree(dev);
}
static struct device_type mc_attr_type = {
@ -1095,21 +1109,25 @@ int __init edac_mc_sysfs_init(void)
return -EINVAL;
}
mci_pdev.bus = edac_subsys;
mci_pdev.type = &mc_attr_type;
device_initialize(&mci_pdev);
dev_set_name(&mci_pdev, "mc");
mci_pdev = kzalloc(sizeof(*mci_pdev), GFP_KERNEL);
err = device_add(&mci_pdev);
mci_pdev->bus = edac_subsys;
mci_pdev->type = &mc_attr_type;
device_initialize(mci_pdev);
dev_set_name(mci_pdev, "mc");
err = device_add(mci_pdev);
if (err < 0)
return err;
debugf0("device %s created\n", dev_name(mci_pdev));
return 0;
}
void __exit edac_mc_sysfs_exit(void)
{
put_device(&mci_pdev);
device_del(&mci_pdev);
put_device(mci_pdev);
device_del(mci_pdev);
edac_put_sysfs_subsys();
}

6
drivers/edac/i3000_edac.c
View File

@ -236,7 +236,7 @@ static int i3000_process_error_info(struct mem_ctl_info *mci,
int row, multi_chan, channel;
unsigned long pfn, offset;
multi_chan = mci->csrows[0].nr_channels - 1;
multi_chan = mci->csrows[0]->nr_channels - 1;
if (!(info->errsts & I3000_ERRSTS_BITS))
return 0;
@ -393,7 +393,7 @@ static int i3000_probe1(struct pci_dev *pdev, int dev_idx)
for (last_cumul_size = i = 0; i < mci->nr_csrows; i++) {
u8 value;
u32 cumul_size;
struct csrow_info *csrow = &mci->csrows[i];
struct csrow_info *csrow = mci->csrows[i];
value = drb[i];
cumul_size = value << (I3000_DRB_SHIFT - PAGE_SHIFT);
@ -410,7 +410,7 @@ static int i3000_probe1(struct pci_dev *pdev, int dev_idx)
last_cumul_size = cumul_size;
for (j = 0; j < nr_channels; j++) {
struct dimm_info *dimm = csrow->channels[j].dimm;
struct dimm_info *dimm = csrow->channels[j]->dimm;
dimm->nr_pages = nr_pages / nr_channels;
dimm->grain = I3000_DEAP_GRAIN;

4
drivers/edac/i3200_edac.c
View File

@ -379,7 +379,7 @@ static int i3200_probe1(struct pci_dev *pdev, int dev_idx)
*/
for (i = 0; i < mci->nr_csrows; i++) {
unsigned long nr_pages;
struct csrow_info *csrow = &mci->csrows[i];
struct csrow_info *csrow = mci->csrows[i];
nr_pages = drb_to_nr_pages(drbs, stacked,
i / I3200_RANKS_PER_CHANNEL,
@ -389,7 +389,7 @@ static int i3200_probe1(struct pci_dev *pdev, int dev_idx)
continue;
for (j = 0; j < nr_channels; j++) {
struct dimm_info *dimm = csrow->channels[j].dimm;
struct dimm_info *dimm = csrow->channels[j]->dimm;
dimm->nr_pages = nr_pages / nr_channels;
dimm->grain = nr_pages << PAGE_SHIFT;

6
drivers/edac/i5400_edac.c
View File

@ -1203,8 +1203,8 @@ static int i5400_init_dimms(struct mem_ctl_info *mci)
size_mb = pvt->dimm_info[slot][channel].megabytes;
debugf2("%s: dimm%zd (branch %d channel %d slot %d): %d.%03d GB\n",
__func__, dimm - mci->dimms,
debugf2("%s: dimm (branch %d channel %d slot %d): %d.%03d GB\n",
__func__,
channel / 2, channel % 2, slot,
size_mb / 1000, size_mb % 1000);
@ -1227,7 +1227,7 @@ static int i5400_init_dimms(struct mem_ctl_info *mci)
* With such single-DIMM mode, the SDCC algorithm degrades to SECDEC+.
*/
if (ndimms == 1)
mci->dimms[0].edac_mode = EDAC_SECDED;
mci->dimms[0]->edac_mode = EDAC_SECDED;
return (ndimms == 0);
}

4
drivers/edac/i82443bxgx_edac.c
View File

@ -197,8 +197,8 @@ static void i82443bxgx_init_csrows(struct mem_ctl_info *mci,
pci_read_config_byte(pdev, I82443BXGX_DRAMC, &dramc);
row_high_limit_last = 0;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
dimm = csrow->channels[0].dimm;
csrow = mci->csrows[index];
dimm = csrow->channels[0]->dimm;
pci_read_config_byte(pdev, I82443BXGX_DRB + index, &drbar);
debugf1("MC%d: %s: %s() Row=%d DRB = %#0x\n",

6
drivers/edac/i82860_edac.c
View File

@ -116,7 +116,7 @@ static int i82860_process_error_info(struct mem_ctl_info *mci,
info->eap >>= PAGE_SHIFT;
row = edac_mc_find_csrow_by_page(mci, info->eap);
dimm = mci->csrows[row].channels[0].dimm;
dimm = mci->csrows[row]->channels[0]->dimm;
if (info->errsts & 0x0002)
edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
@ -161,8 +161,8 @@ static void i82860_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev)
* in all eight rows.
*/
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
dimm = csrow->channels[0].dimm;
csrow = mci->csrows[index];
dimm = csrow->channels[0]->dimm;
pci_read_config_word(pdev, I82860_GBA + index * 2, &value);
cumul_size = (value & I82860_GBA_MASK) <<

6
drivers/edac/i82875p_edac.c
View File

@ -227,7 +227,7 @@ static int i82875p_process_error_info(struct mem_ctl_info *mci,
{
int row, multi_chan;
multi_chan = mci->csrows[0].nr_channels - 1;
multi_chan = mci->csrows[0]->nr_channels - 1;
if (!(info->errsts & 0x0081))
return 0;
@ -367,7 +367,7 @@ static void i82875p_init_csrows(struct mem_ctl_info *mci,
*/
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
csrow = mci->csrows[index];
value = readb(ovrfl_window + I82875P_DRB + index);
cumul_size = value << (I82875P_DRB_SHIFT - PAGE_SHIFT);
@ -382,7 +382,7 @@ static void i82875p_init_csrows(struct mem_ctl_info *mci,
last_cumul_size = cumul_size;
for (j = 0; j < nr_chans; j++) {
dimm = csrow->channels[j].dimm;
dimm = csrow->channels[j]->dimm;
dimm->nr_pages = nr_pages / nr_chans;
dimm->grain = 1 << 12; /* I82875P_EAP has 4KiB reolution */

10
drivers/edac/i82975x_edac.c
View File

@ -308,10 +308,10 @@ static int i82975x_process_error_info(struct mem_ctl_info *mci,
(info->xeap & 1) ? 1 : 0, info->eap, (unsigned int) page);
return 0;
}
chan = (mci->csrows[row].nr_channels == 1) ? 0 : info->eap & 1;
chan = (mci->csrows[row]->nr_channels == 1) ? 0 : info->eap & 1;
offst = info->eap
& ((1 << PAGE_SHIFT) -
(1 << mci->csrows[row].channels[chan].dimm->grain));
(1 << mci->csrows[row]->channels[chan]->dimm->grain));
if (info->errsts & 0x0002)
edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
@ -394,7 +394,7 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
*/
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
csrow = mci->csrows[index];
value = readb(mch_window + I82975X_DRB + index +
((index >= 4) ? 0x80 : 0));
@ -421,10 +421,10 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
*/
dtype = i82975x_dram_type(mch_window, index);
for (chan = 0; chan < csrow->nr_channels; chan++) {
dimm = mci->csrows[index].channels[chan].dimm;
dimm = mci->csrows[index]->channels[chan]->dimm;
dimm->nr_pages = nr_pages / csrow->nr_channels;
strncpy(csrow->channels[chan].dimm->label,
strncpy(csrow->channels[chan]->dimm->label,
labels[(index >> 1) + (chan * 2)],
EDAC_MC_LABEL_LEN);
dimm->grain = 1 << 7; /* 128Byte cache-line resolution */

6
drivers/edac/mpc85xx_edac.c
View File

@ -825,7 +825,7 @@ static void mpc85xx_mc_check(struct mem_ctl_info *mci)
pfn = err_addr >> PAGE_SHIFT;
for (row_index = 0; row_index < mci->nr_csrows; row_index++) {
csrow = &mci->csrows[row_index];
csrow = mci->csrows[row_index];
if ((pfn >= csrow->first_page) && (pfn <= csrow->last_page))
break;
}
@ -945,8 +945,8 @@ static void __devinit mpc85xx_init_csrows(struct mem_ctl_info *mci)
u32 start;
u32 end;
csrow = &mci->csrows[index];
dimm = csrow->channels[0].dimm;
csrow = mci->csrows[index];
dimm = csrow->channels[0]->dimm;
cs_bnds = in_be32(pdata->mc_vbase + MPC85XX_MC_CS_BNDS_0 +
(index * MPC85XX_MC_CS_BNDS_OFS));

4
drivers/edac/mv64x60_edac.c
View File

@ -670,8 +670,8 @@ static void mv64x60_init_csrows(struct mem_ctl_info *mci,
ctl = in_le32(pdata->mc_vbase + MV64X60_SDRAM_CONFIG);
csrow = &mci->csrows[0];
dimm = csrow->channels[0].dimm;
csrow = mci->csrows[0];
dimm = csrow->channels[0]->dimm;
dimm->nr_pages = pdata->total_mem >> PAGE_SHIFT;
dimm->grain = 8;

8
drivers/edac/pasemi_edac.c
View File

@ -111,14 +111,14 @@ static void pasemi_edac_process_error_info(struct mem_ctl_info *mci, u32 errsta)
if (errsta & (MCDEBUG_ERRSTA_MBE_STATUS |
MCDEBUG_ERRSTA_RFL_STATUS)) {
edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
mci->csrows[cs].first_page, 0, 0,
mci->csrows[cs]->first_page, 0, 0,
cs, 0, -1, mci->ctl_name, "", NULL);
}
/* correctable/single-bit errors */
if (errsta & MCDEBUG_ERRSTA_SBE_STATUS)
edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
mci->csrows[cs].first_page, 0, 0,
mci->csrows[cs]->first_page, 0, 0,
cs, 0, -1, mci->ctl_name, "", NULL);
}
@ -141,8 +141,8 @@ static int pasemi_edac_init_csrows(struct mem_ctl_info *mci,
int index;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
dimm = csrow->channels[0].dimm;
csrow = mci->csrows[index];
dimm = csrow->channels[0]->dimm;
pci_read_config_dword(pdev,
MCDRAM_RANKCFG + (index * 12),

4
drivers/edac/r82600_edac.c
View File

@ -230,8 +230,8 @@ static void r82600_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
row_high_limit_last = 0;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
dimm = csrow->channels[0].dimm;
csrow = mci->csrows[index];
dimm = csrow->channels[0]->dimm;
/* find the DRAM Chip Select Base address and mask */
pci_read_config_byte(pdev, R82600_DRBA + index, &drbar);

4
drivers/edac/tile_edac.c
View File

@ -84,10 +84,10 @@ static void tile_edac_check(struct mem_ctl_info *mci)
*/
static int __devinit tile_edac_init_csrows(struct mem_ctl_info *mci)
{
struct csrow_info *csrow = &mci->csrows[0];
struct csrow_info *csrow = mci->csrows[0];
struct tile_edac_priv *priv = mci->pvt_info;
struct mshim_mem_info mem_info;
struct dimm_info *dimm = csrow->channels[0].dimm;
struct dimm_info *dimm = csrow->channels[0]->dimm;
if (hv_dev_pread(priv->hv_devhdl, 0, (HV_VirtAddr)&mem_info,
sizeof(struct mshim_mem_info), MSHIM_MEM_INFO_OFF) !=

4
drivers/edac/x38_edac.c
View File

@ -378,7 +378,7 @@ static int x38_probe1(struct pci_dev *pdev, int dev_idx)
*/
for (i = 0; i < mci->nr_csrows; i++) {
unsigned long nr_pages;
struct csrow_info *csrow = &mci->csrows[i];
struct csrow_info *csrow = mci->csrows[i];
nr_pages = drb_to_nr_pages(drbs, stacked,
i / X38_RANKS_PER_CHANNEL,
@ -388,7 +388,7 @@ static int x38_probe1(struct pci_dev *pdev, int dev_idx)
continue;
for (j = 0; j < x38_channel_num; j++) {
struct dimm_info *dimm = csrow->channels[j].dimm;
struct dimm_info *dimm = csrow->channels[j]->dimm;
dimm->nr_pages = nr_pages / x38_channel_num;
dimm->grain = nr_pages << PAGE_SHIFT;

67
include/linux/edac.h
View File

@ -412,7 +412,44 @@ struct edac_mc_layer {
#define EDAC_MAX_LAYERS 3
/**
* EDAC_DIMM_PTR - Macro responsible to find a pointer inside a pointer array
* EDAC_DIMM_OFF - Macro responsible to get a pointer offset inside a pointer array
* for the element given by [layer0,layer1,layer2] position
*
* @layers: a struct edac_mc_layer array, describing how many elements
* were allocated for each layer
* @n_layers: Number of layers at the @layers array
* @layer0: layer0 position
* @layer1: layer1 position. Unused if n_layers < 2
* @layer2: layer2 position. Unused if n_layers < 3
*
* For 1 layer, this macro returns &var[layer0] - &var
* For 2 layers, this macro is similar to allocate a bi-dimensional array
* and to return "&var[layer0][layer1] - &var"
* For 3 layers, this macro is similar to allocate a tri-dimensional array
* and to return "&var[layer0][layer1][layer2] - &var"
*
* A loop could be used here to make it more generic, but, as we only have
* 3 layers, this is a little faster.
* By design, layers can never be 0 or more than 3. If that ever happens,
* a NULL is returned, causing an OOPS during the memory allocation routine,
* with would point to the developer that he's doing something wrong.
*/
#define EDAC_DIMM_OFF(layers, nlayers, layer0, layer1, layer2) ({ \
int __i; \
if ((nlayers) == 1) \
__i = layer0; \
else if ((nlayers) == 2) \
__i = (layer1) + ((layers[1]).size * (layer0)); \
else if ((nlayers) == 3) \
__i = (layer2) + ((layers[2]).size * ((layer1) + \
((layers[1]).size * (layer0)))); \
else \
__i = -EINVAL; \
__i; \
})
/**
* EDAC_DIMM_PTR - Macro responsible to get a pointer inside a pointer array
* for the element given by [layer0,layer1,layer2] position
*
* @layers: a struct edac_mc_layer array, describing how many elements
@ -429,24 +466,14 @@ struct edac_mc_layer {
* and to return "&var[layer0][layer1]"
* For 3 layers, this macro is similar to allocate a tri-dimensional array
* and to return "&var[layer0][layer1][layer2]"
*
* A loop could be used here to make it more generic, but, as we only have
* 3 layers, this is a little faster.
* By design, layers can never be 0 or more than 3. If that ever happens,
* a NULL is returned, causing an OOPS during the memory allocation routine,
* with would point to the developer that he's doing something wrong.
*/
#define EDAC_DIMM_PTR(layers, var, nlayers, layer0, layer1, layer2) ({ \
typeof(var) __p; \
if ((nlayers) == 1) \
__p = &var[layer0]; \
else if ((nlayers) == 2) \
__p = &var[(layer1) + ((layers[1]).size * (layer0))]; \
else if ((nlayers) == 3) \
__p = &var[(layer2) + ((layers[2]).size * ((layer1) + \
((layers[1]).size * (layer0))))]; \
else \
typeof(*var) __p; \
int ___i = EDAC_DIMM_OFF(layers, nlayers, layer0, layer1, layer2); \
if (___i < 0) \
__p = NULL; \
else \
__p = (var)[___i]; \
__p; \
})
@ -486,8 +513,6 @@ struct dimm_info {
* patches in this series will fix this issue.
*/
struct rank_info {
struct device dev;
int chan_idx;
struct csrow_info *csrow;
struct dimm_info *dimm;
@ -513,7 +538,7 @@ struct csrow_info {
/* channel information for this csrow */
u32 nr_channels;
struct rank_info *channels;
struct rank_info **channels;
};
/*
@ -572,7 +597,7 @@ struct mem_ctl_info {
unsigned long (*ctl_page_to_phys) (struct mem_ctl_info * mci,
unsigned long page);
int mc_idx;
struct csrow_info *csrows;
struct csrow_info **csrows;
unsigned nr_csrows, num_cschannel;
/*
@ -592,7 +617,7 @@ struct mem_ctl_info {
* DIMM info. Will eventually remove the entire csrows_info some day
*/
unsigned tot_dimms;
struct dimm_info *dimms;
struct dimm_info **dimms;
/*
* FIXME - what about controllers on other busses? - IDs must be