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-rw-r--r--drivers/edac/edac_core.h11
-rw-r--r--drivers/edac/edac_mc.c12
-rw-r--r--drivers/edac/edac_mc_sysfs.c82
-rw-r--r--drivers/edac/i7core_edac.c432
4 files changed, 313 insertions, 224 deletions
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h
index ce7146677e9b..d7ca43a828bd 100644
--- a/drivers/edac/edac_core.h
+++ b/drivers/edac/edac_core.h
@@ -42,8 +42,10 @@
#if PAGE_SHIFT < 20
#define PAGES_TO_MiB( pages ) ( ( pages ) >> ( 20 - PAGE_SHIFT ) )
+#define MiB_TO_PAGES(mb) ((mb) >> (20 - PAGE_SHIFT))
#else /* PAGE_SHIFT > 20 */
#define PAGES_TO_MiB( pages ) ( ( pages ) << ( PAGE_SHIFT - 20 ) )
+#define MiB_TO_PAGES(mb) ((mb) >> (PAGE_SHIFT - 20))
#endif
#define edac_printk(level, prefix, fmt, arg...) \
@@ -328,7 +330,7 @@ struct csrow_info {
struct mcidev_sysfs_group {
const char *name; /* group name */
- struct mcidev_sysfs_attribute *mcidev_attr; /* group attributes */
+ const struct mcidev_sysfs_attribute *mcidev_attr; /* group attributes */
};
struct mcidev_sysfs_group_kobj {
@@ -336,7 +338,7 @@ struct mcidev_sysfs_group_kobj {
struct kobject kobj; /* kobj for the group */
- struct mcidev_sysfs_group *grp; /* group description table */
+ const struct mcidev_sysfs_group *grp; /* group description table */
struct mem_ctl_info *mci; /* the parent */
};
@@ -347,7 +349,7 @@ struct mcidev_sysfs_group_kobj {
struct mcidev_sysfs_attribute {
/* It should use either attr or grp */
struct attribute attr;
- struct mcidev_sysfs_group *grp; /* Points to a group of attributes */
+ const struct mcidev_sysfs_group *grp; /* Points to a group of attributes */
/* Ops for show/store values at the attribute - not used on group */
ssize_t (*show)(struct mem_ctl_info *,char *);
@@ -440,7 +442,7 @@ struct mem_ctl_info {
* If attributes are desired, then set to array of attributes
* If no attributes are desired, leave NULL
*/
- struct mcidev_sysfs_attribute *mc_driver_sysfs_attributes;
+ const struct mcidev_sysfs_attribute *mc_driver_sysfs_attributes;
/* work struct for this MC */
struct delayed_work work;
@@ -810,6 +812,7 @@ extern struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows,
extern int edac_mc_add_mc(struct mem_ctl_info *mci);
extern void edac_mc_free(struct mem_ctl_info *mci);
extern struct mem_ctl_info *edac_mc_find(int idx);
+extern struct mem_ctl_info *find_mci_by_dev(struct device *dev);
extern struct mem_ctl_info *edac_mc_del_mc(struct device *dev);
extern int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci,
unsigned long page);
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 6b21e25f7a84..ba6586a69ccc 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -207,6 +207,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows,
}
mci->op_state = OP_ALLOC;
+ INIT_LIST_HEAD(&mci->grp_kobj_list);
/*
* Initialize the 'root' kobj for the edac_mc controller
@@ -234,18 +235,24 @@ EXPORT_SYMBOL_GPL(edac_mc_alloc);
*/
void edac_mc_free(struct mem_ctl_info *mci)
{
+ debugf1("%s()\n", __func__);
+
edac_mc_unregister_sysfs_main_kobj(mci);
+
+ /* free the mci instance memory here */
+ kfree(mci);
}
EXPORT_SYMBOL_GPL(edac_mc_free);
-/*
+/**
* find_mci_by_dev
*
* scan list of controllers looking for the one that manages
* the 'dev' device
+ * @dev: pointer to a struct device related with the MCI
*/
-static struct mem_ctl_info *find_mci_by_dev(struct device *dev)
+struct mem_ctl_info *find_mci_by_dev(struct device *dev)
{
struct mem_ctl_info *mci;
struct list_head *item;
@@ -261,6 +268,7 @@ static struct mem_ctl_info *find_mci_by_dev(struct device *dev)
return NULL;
}
+EXPORT_SYMBOL_GPL(find_mci_by_dev);
/*
* handler for EDAC to check if NMI type handler has asserted interrupt
diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c
index a4135860149b..dce61f7ba38b 100644
--- a/drivers/edac/edac_mc_sysfs.c
+++ b/drivers/edac/edac_mc_sysfs.c
@@ -631,9 +631,6 @@ static void edac_mci_control_release(struct kobject *kobj)
/* decrement the module ref count */
module_put(mci->owner);
-
- /* free the mci instance memory here */
- kfree(mci);
}
static struct kobj_type ktype_mci = {
@@ -713,6 +710,8 @@ fail_out:
*/
void edac_mc_unregister_sysfs_main_kobj(struct mem_ctl_info *mci)
{
+ debugf1("%s()\n", __func__);
+
/* delete the kobj from the mc_kset */
kobject_put(&mci->edac_mci_kobj);
}
@@ -760,8 +759,6 @@ static void edac_inst_grp_release(struct kobject *kobj)
grp = container_of(kobj, struct mcidev_sysfs_group_kobj, kobj);
mci = grp->mci;
-
- kobject_put(&mci->edac_mci_kobj);
}
/* Intermediate show/store table */
@@ -784,7 +781,7 @@ static struct kobj_type ktype_inst_grp = {
* object tree.
*/
static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
- struct mcidev_sysfs_attribute *sysfs_attrib,
+ const struct mcidev_sysfs_attribute *sysfs_attrib,
struct kobject *kobj)
{
int err;
@@ -792,6 +789,7 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
debugf1("%s()\n", __func__);
while (sysfs_attrib) {
+ debugf1("%s() sysfs_attrib = %p\n",__func__, sysfs_attrib);
if (sysfs_attrib->grp) {
struct mcidev_sysfs_group_kobj *grp_kobj;
@@ -799,10 +797,9 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
if (!grp_kobj)
return -ENOMEM;
- list_add_tail(&grp_kobj->list, &mci->grp_kobj_list);
-
grp_kobj->grp = sysfs_attrib->grp;
grp_kobj->mci = mci;
+ list_add_tail(&grp_kobj->list, &mci->grp_kobj_list);
debugf0("%s() grp %s, mci %p\n", __func__,
sysfs_attrib->grp->name, mci);
@@ -811,26 +808,28 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
&ktype_inst_grp,
&mci->edac_mci_kobj,
sysfs_attrib->grp->name);
- if (err)
+ if (err < 0) {
+ printk(KERN_ERR "kobject_init_and_add failed: %d\n", err);
return err;
-
+ }
err = edac_create_mci_instance_attributes(mci,
grp_kobj->grp->mcidev_attr,
&grp_kobj->kobj);
- if (err)
+ if (err < 0)
return err;
} else if (sysfs_attrib->attr.name) {
debugf0("%s() file %s\n", __func__,
sysfs_attrib->attr.name);
err = sysfs_create_file(kobj, &sysfs_attrib->attr);
+ if (err < 0) {
+ printk(KERN_ERR "sysfs_create_file failed: %d\n", err);
+ return err;
+ }
} else
break;
- if (err) {
- return err;
- }
sysfs_attrib++;
}
@@ -843,7 +842,7 @@ static int edac_create_mci_instance_attributes(struct mem_ctl_info *mci,
* directory of this mci instance.
*/
static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
- struct mcidev_sysfs_attribute *sysfs_attrib,
+ const struct mcidev_sysfs_attribute *sysfs_attrib,
struct kobject *kobj, int count)
{
struct mcidev_sysfs_group_kobj *grp_kobj, *tmp;
@@ -855,13 +854,24 @@ static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
* Remove first all the atributes
*/
while (sysfs_attrib) {
+ debugf1("%s() sysfs_attrib = %p\n",__func__, sysfs_attrib);
if (sysfs_attrib->grp) {
- list_for_each_entry(grp_kobj, &mci->grp_kobj_list,
- list)
- if (grp_kobj->grp == sysfs_attrib->grp)
+ debugf1("%s() seeking for group %s\n",
+ __func__, sysfs_attrib->grp->name);
+ list_for_each_entry(grp_kobj,
+ &mci->grp_kobj_list, list) {
+ debugf1("%s() grp_kobj->grp = %p\n",__func__, grp_kobj->grp);
+ if (grp_kobj->grp == sysfs_attrib->grp) {
edac_remove_mci_instance_attributes(mci,
grp_kobj->grp->mcidev_attr,
&grp_kobj->kobj, count + 1);
+ debugf0("%s() group %s\n", __func__,
+ sysfs_attrib->grp->name);
+ kobject_put(&grp_kobj->kobj);
+ }
+ }
+ debugf1("%s() end of seeking for group %s\n",
+ __func__, sysfs_attrib->grp->name);
} else if (sysfs_attrib->attr.name) {
debugf0("%s() file %s\n", __func__,
sysfs_attrib->attr.name);
@@ -871,15 +881,14 @@ static void edac_remove_mci_instance_attributes(struct mem_ctl_info *mci,
sysfs_attrib++;
}
- /*
- * Now that all attributes got removed, it is save to remove all groups
- */
- if (!count)
- list_for_each_entry_safe(grp_kobj, tmp, &mci->grp_kobj_list,
- list) {
- debugf0("%s() grp %s\n", __func__, grp_kobj->grp->name);
- kobject_put(&grp_kobj->kobj);
- }
+ /* Remove the group objects */
+ if (count)
+ return;
+ list_for_each_entry_safe(grp_kobj, tmp,
+ &mci->grp_kobj_list, list) {
+ list_del(&grp_kobj->list);
+ kfree(grp_kobj);
+ }
}
@@ -971,6 +980,7 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
debugf0("%s()\n", __func__);
/* remove all csrow kobjects */
+ debugf0("%s() unregister this mci kobj\n", __func__);
for (i = 0; i < mci->nr_csrows; i++) {
if (mci->csrows[i].nr_pages > 0) {
debugf0("%s() unreg csrow-%d\n", __func__, i);
@@ -978,20 +988,20 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
}
}
- debugf0("%s() remove_link\n", __func__);
+ /* remove this mci instance's attribtes */
+ if (mci->mc_driver_sysfs_attributes) {
+ debugf0("%s() unregister mci private attributes\n", __func__);
+ edac_remove_mci_instance_attributes(mci,
+ mci->mc_driver_sysfs_attributes,
+ &mci->edac_mci_kobj, 0);
+ }
/* remove the symlink */
+ debugf0("%s() remove_link\n", __func__);
sysfs_remove_link(&mci->edac_mci_kobj, EDAC_DEVICE_SYMLINK);
- debugf0("%s() remove_mci_instance\n", __func__);
-
- /* remove this mci instance's attribtes */
- edac_remove_mci_instance_attributes(mci,
- mci->mc_driver_sysfs_attributes,
- &mci->edac_mci_kobj, 0);
- debugf0("%s() unregister this mci kobj\n", __func__);
-
/* unregister this instance's kobject */
+ debugf0("%s() remove_mci_instance\n", __func__);
kobject_put(&mci->edac_mci_kobj);
}
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index 0fd5b85a0f75..362861c15779 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -39,6 +39,14 @@
#include "edac_core.h"
+/* Static vars */
+static LIST_HEAD(i7core_edac_list);
+static DEFINE_MUTEX(i7core_edac_lock);
+static int probed;
+
+static int use_pci_fixup;
+module_param(use_pci_fixup, int, 0444);
+MODULE_PARM_DESC(use_pci_fixup, "Enable PCI fixup to seek for hidden devices");
/*
* This is used for Nehalem-EP and Nehalem-EX devices, where the non-core
* registers start at bus 255, and are not reported by BIOS.
@@ -212,8 +220,8 @@ struct pci_id_descr {
};
struct pci_id_table {
- struct pci_id_descr *descr;
- int n_devs;
+ const struct pci_id_descr *descr;
+ int n_devs;
};
struct i7core_dev {
@@ -235,8 +243,6 @@ struct i7core_pvt {
struct i7core_inject inject;
struct i7core_channel channel[NUM_CHANS];
- int channels; /* Number of active channels */
-
int ce_count_available;
int csrow_map[NUM_CHANS][MAX_DIMMS];
@@ -261,22 +267,22 @@ struct i7core_pvt {
/* Count indicator to show errors not got */
unsigned mce_overrun;
-};
-/* Static vars */
-static LIST_HEAD(i7core_edac_list);
-static DEFINE_MUTEX(i7core_edac_lock);
+ /* Struct to control EDAC polling */
+ struct edac_pci_ctl_info *i7core_pci;
+};
#define PCI_DESCR(device, function, device_id) \
.dev = (device), \
.func = (function), \
.dev_id = (device_id)
-struct pci_id_descr pci_dev_descr_i7core_nehalem[] = {
+static const struct pci_id_descr pci_dev_descr_i7core_nehalem[] = {
/* Memory controller */
{ PCI_DESCR(3, 0, PCI_DEVICE_ID_INTEL_I7_MCR) },
{ PCI_DESCR(3, 1, PCI_DEVICE_ID_INTEL_I7_MC_TAD) },
- /* Exists only for RDIMM */
+
+ /* Exists only for RDIMM */
{ PCI_DESCR(3, 2, PCI_DEVICE_ID_INTEL_I7_MC_RAS), .optional = 1 },
{ PCI_DESCR(3, 4, PCI_DEVICE_ID_INTEL_I7_MC_TEST) },
@@ -297,19 +303,9 @@ struct pci_id_descr pci_dev_descr_i7core_nehalem[] = {
{ PCI_DESCR(6, 1, PCI_DEVICE_ID_INTEL_I7_MC_CH2_ADDR) },
{ PCI_DESCR(6, 2, PCI_DEVICE_ID_INTEL_I7_MC_CH2_RANK) },
{ PCI_DESCR(6, 3, PCI_DEVICE_ID_INTEL_I7_MC_CH2_TC) },
-
- /* Generic Non-core registers */
- /*
- * This is the PCI device on i7core and on Xeon 35xx (8086:2c41)
- * On Xeon 55xx, however, it has a different id (8086:2c40). So,
- * the probing code needs to test for the other address in case of
- * failure of this one
- */
- { PCI_DESCR(0, 0, PCI_DEVICE_ID_INTEL_I7_NONCORE) },
-
};
-struct pci_id_descr pci_dev_descr_lynnfield[] = {
+static const struct pci_id_descr pci_dev_descr_lynnfield[] = {
{ PCI_DESCR( 3, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MCR) },
{ PCI_DESCR( 3, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_TAD) },
{ PCI_DESCR( 3, 4, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_TEST) },
@@ -323,15 +319,9 @@ struct pci_id_descr pci_dev_descr_lynnfield[] = {
{ PCI_DESCR( 5, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_ADDR) },
{ PCI_DESCR( 5, 2, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_RANK) },
{ PCI_DESCR( 5, 3, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH1_TC) },
-
- /*
- * This is the PCI device has an alternate address on some
- * processors like Core i7 860
- */
- { PCI_DESCR( 0, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE) },
};
-struct pci_id_descr pci_dev_descr_i7core_westmere[] = {
+static const struct pci_id_descr pci_dev_descr_i7core_westmere[] = {
/* Memory controller */
{ PCI_DESCR(3, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_MCR_REV2) },
{ PCI_DESCR(3, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_TAD_REV2) },
@@ -356,17 +346,14 @@ struct pci_id_descr pci_dev_descr_i7core_westmere[] = {
{ PCI_DESCR(6, 1, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_ADDR_REV2) },
{ PCI_DESCR(6, 2, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_RANK_REV2) },
{ PCI_DESCR(6, 3, PCI_DEVICE_ID_INTEL_LYNNFIELD_MC_CH2_TC_REV2) },
-
- /* Generic Non-core registers */
- { PCI_DESCR(0, 0, PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE_REV2) },
-
};
-#define PCI_ID_TABLE_ENTRY(A) { A, ARRAY_SIZE(A) }
-struct pci_id_table pci_dev_table[] = {
+#define PCI_ID_TABLE_ENTRY(A) { .descr=A, .n_devs = ARRAY_SIZE(A) }
+static const struct pci_id_table pci_dev_table[] = {
PCI_ID_TABLE_ENTRY(pci_dev_descr_i7core_nehalem),
PCI_ID_TABLE_ENTRY(pci_dev_descr_lynnfield),
PCI_ID_TABLE_ENTRY(pci_dev_descr_i7core_westmere),
+ {0,} /* 0 terminated list. */
};
/*
@@ -378,8 +365,6 @@ static const struct pci_device_id i7core_pci_tbl[] __devinitdata = {
{0,} /* 0 terminated list. */
};
-static struct edac_pci_ctl_info *i7core_pci;
-
/****************************************************************************
Anciliary status routines
****************************************************************************/
@@ -442,6 +427,36 @@ static struct i7core_dev *get_i7core_dev(u8 socket)
return NULL;
}
+static struct i7core_dev *alloc_i7core_dev(u8 socket,
+ const struct pci_id_table *table)
+{
+ struct i7core_dev *i7core_dev;
+
+ i7core_dev = kzalloc(sizeof(*i7core_dev), GFP_KERNEL);
+ if (!i7core_dev)
+ return NULL;
+
+ i7core_dev->pdev = kzalloc(sizeof(*i7core_dev->pdev) * table->n_devs,
+ GFP_KERNEL);
+ if (!i7core_dev->pdev) {
+ kfree(i7core_dev);
+ return NULL;
+ }
+
+ i7core_dev->socket = socket;
+ i7core_dev->n_devs = table->n_devs;
+ list_add_tail(&i7core_dev->list, &i7core_edac_list);
+
+ return i7core_dev;
+}
+
+static void free_i7core_dev(struct i7core_dev *i7core_dev)
+{
+ list_del(&i7core_dev->list);
+ kfree(i7core_dev->pdev);
+ kfree(i7core_dev);
+}
+
/****************************************************************************
Memory check routines
****************************************************************************/
@@ -484,7 +499,7 @@ static struct pci_dev *get_pdev_slot_func(u8 socket, unsigned slot,
* to add a fake description for csrows.
* So, this driver is attributing one DIMM memory for one csrow.
*/
-static int i7core_get_active_channels(u8 socket, unsigned *channels,
+static int i7core_get_active_channels(const u8 socket, unsigned *channels,
unsigned *csrows)
{
struct pci_dev *pdev = NULL;
@@ -545,12 +560,13 @@ static int i7core_get_active_channels(u8 socket, unsigned *channels,
return 0;
}
-static int get_dimm_config(struct mem_ctl_info *mci, int *csrow)
+static int get_dimm_config(const struct mem_ctl_info *mci)
{
struct i7core_pvt *pvt = mci->pvt_info;
struct csrow_info *csr;
struct pci_dev *pdev;
int i, j;
+ int csrow = 0;
unsigned long last_page = 0;
enum edac_type mode;
enum mem_type mtype;
@@ -664,13 +680,9 @@ static int get_dimm_config(struct mem_ctl_info *mci, int *csrow)
RANKOFFSET(dimm_dod[j]),
banks, ranks, rows, cols);
-#if PAGE_SHIFT > 20
- npages = size >> (PAGE_SHIFT - 20);
-#else
- npages = size << (20 - PAGE_SHIFT);
-#endif
+ npages = MiB_TO_PAGES(size);
- csr = &mci->csrows[*csrow];
+ csr = &mci->csrows[csrow];
csr->first_page = last_page + 1;
last_page += npages;
csr->last_page = last_page;
@@ -678,13 +690,13 @@ static int get_dimm_config(struct mem_ctl_info *mci, int *csrow)
csr->page_mask = 0;
csr->grain = 8;
- csr->csrow_idx = *csrow;
+ csr->csrow_idx = csrow;
csr->nr_channels = 1;
csr->channels[0].chan_idx = i;
csr->channels[0].ce_count = 0;
- pvt->csrow_map[i][j] = *csrow;
+ pvt->csrow_map[i][j] = csrow;
switch (banks) {
case 4:
@@ -703,7 +715,7 @@ static int get_dimm_config(struct mem_ctl_info *mci, int *csrow)
csr->edac_mode = mode;
csr->mtype = mtype;
- (*csrow)++;
+ csrow++;
}
pci_read_config_dword(pdev, MC_SAG_CH_0, &value[0]);
@@ -736,7 +748,7 @@ static int get_dimm_config(struct mem_ctl_info *mci, int *csrow)
we're disabling error injection on all write calls to the sysfs nodes that
controls the error code injection.
*/
-static int disable_inject(struct mem_ctl_info *mci)
+static int disable_inject(const struct mem_ctl_info *mci)
{
struct i7core_pvt *pvt = mci->pvt_info;
@@ -921,7 +933,7 @@ DECLARE_ADDR_MATCH(bank, 32);
DECLARE_ADDR_MATCH(page, 0x10000);
DECLARE_ADDR_MATCH(col, 0x4000);
-static int write_and_test(struct pci_dev *dev, int where, u32 val)
+static int write_and_test(struct pci_dev *dev, const int where, const u32 val)
{
u32 read;
int count;
@@ -1120,35 +1132,34 @@ DECLARE_COUNTER(2);
* Sysfs struct
*/
-
-static struct mcidev_sysfs_attribute i7core_addrmatch_attrs[] = {
+static const struct mcidev_sysfs_attribute i7core_addrmatch_attrs[] = {
ATTR_ADDR_MATCH(channel),
ATTR_ADDR_MATCH(dimm),
ATTR_ADDR_MATCH(rank),
ATTR_ADDR_MATCH(bank),
ATTR_ADDR_MATCH(page),
ATTR_ADDR_MATCH(col),
- { .attr = { .name = NULL } }
+ { } /* End of list */
};
-static struct mcidev_sysfs_group i7core_inject_addrmatch = {
+static const struct mcidev_sysfs_group i7core_inject_addrmatch = {
.name = "inject_addrmatch",
.mcidev_attr = i7core_addrmatch_attrs,
};
-static struct mcidev_sysfs_attribute i7core_udimm_counters_attrs[] = {
+static const struct mcidev_sysfs_attribute i7core_udimm_counters_attrs[] = {
ATTR_COUNTER(0),
ATTR_COUNTER(1),
ATTR_COUNTER(2),
{ .attr = { .name = NULL } }
};
-static struct mcidev_sysfs_group i7core_udimm_counters = {
+static const struct mcidev_sysfs_group i7core_udimm_counters = {
.name = "all_channel_counts",
.mcidev_attr = i7core_udimm_counters_attrs,
};
-static struct mcidev_sysfs_attribute i7core_sysfs_attrs[] = {
+static const struct mcidev_sysfs_attribute i7core_sysfs_rdimm_attrs[] = {
{
.attr = {
.name = "inject_section",
@@ -1180,8 +1191,44 @@ static struct mcidev_sysfs_attribute i7core_sysfs_attrs[] = {
.show = i7core_inject_enable_show,
.store = i7core_inject_enable_store,
},
- { .attr = { .name = NULL } }, /* Reserved for udimm counters */
- { .attr = { .name = NULL } }
+ { } /* End of list */
+};
+
+static const struct mcidev_sysfs_attribute i7core_sysfs_udimm_attrs[] = {
+ {
+ .attr = {
+ .name = "inject_section",
+ .mode = (S_IRUGO | S_IWUSR)
+ },
+ .show = i7core_inject_section_show,
+ .store = i7core_inject_section_store,
+ }, {
+ .attr = {
+ .name = "inject_type",
+ .mode = (S_IRUGO | S_IWUSR)
+ },
+ .show = i7core_inject_type_show,
+ .store = i7core_inject_type_store,
+ }, {
+ .attr = {
+ .name = "inject_eccmask",
+ .mode = (S_IRUGO | S_IWUSR)
+ },
+ .show = i7core_inject_eccmask_show,
+ .store = i7core_inject_eccmask_store,
+ }, {
+ .grp = &i7core_inject_addrmatch,
+ }, {
+ .attr = {
+ .name = "inject_enable",
+ .mode = (S_IRUGO | S_IWUSR)
+ },
+ .show = i7core_inject_enable_show,
+ .store = i7core_inject_enable_store,
+ }, {
+ .grp = &i7core_udimm_counters,
+ },
+ { } /* End of list */
};
/****************************************************************************
@@ -1189,7 +1236,7 @@ static struct mcidev_sysfs_attribute i7core_sysfs_attrs[] = {
****************************************************************************/
/*
- * i7core_put_devices 'put' all the devices that we have
+ * i7core_put_all_devices 'put' all the devices that we have
* reserved via 'get'
*/
static void i7core_put_devices(struct i7core_dev *i7core_dev)
@@ -1206,23 +1253,23 @@ static void i7core_put_devices(struct i7core_dev *i7core_dev)
PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn));
pci_dev_put(pdev);
}
- kfree(i7core_dev->pdev);
- list_del(&i7core_dev->list);
- kfree(i7core_dev);
}
static void i7core_put_all_devices(void)
{
struct i7core_dev *i7core_dev, *tmp;
- list_for_each_entry_safe(i7core_dev, tmp, &i7core_edac_list, list)
+ list_for_each_entry_safe(i7core_dev, tmp, &i7core_edac_list, list) {
i7core_put_devices(i7core_dev);
+ free_i7core_dev(i7core_dev);
+ }
}
-static void __init i7core_xeon_pci_fixup(struct pci_id_table *table)
+static void __init i7core_xeon_pci_fixup(const struct pci_id_table *table)
{
struct pci_dev *pdev = NULL;
int i;
+
/*
* On Xeon 55xx, the Intel Quckpath Arch Generic Non-core pci buses
* aren't announced by acpi. So, we need to use a legacy scan probing
@@ -1257,16 +1304,18 @@ static unsigned i7core_pci_lastbus(void)
}
/*
- * i7core_get_devices Find and perform 'get' operation on the MCH's
+ * i7core_get_all_devices Find and perform 'get' operation on the MCH's
* device/functions we want to reference for this driver
*
* Need to 'get' device 16 func 1 and func 2
*/
-int i7core_get_onedevice(struct pci_dev **prev, int devno,
- struct pci_id_descr *dev_descr, unsigned n_devs,
- unsigned last_bus)
+static int i7core_get_onedevice(struct pci_dev **prev,
+ const struct pci_id_table *table,
+ const unsigned devno,
+ const unsigned last_bus)
{
struct i7core_dev *i7core_dev;
+ const struct pci_id_descr *dev_descr = &table->descr[devno];
struct pci_dev *pdev = NULL;
u8 bus = 0;
@@ -1275,20 +1324,6 @@ int i7core_get_onedevice(struct pci_dev **prev, int devno,
pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
dev_descr->dev_id, *prev);
- /*
- * On Xeon 55xx, the Intel Quckpath Arch Generic Non-core regs
- * is at addr 8086:2c40, instead of 8086:2c41. So, we need
- * to probe for the alternate address in case of failure
- */
- if (dev_descr->dev_id == PCI_DEVICE_ID_INTEL_I7_NONCORE && !pdev)
- pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_I7_NONCORE_ALT, *prev);
-
- if (dev_descr->dev_id == PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE && !pdev)
- pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_LYNNFIELD_NONCORE_ALT,
- *prev);
-
if (!pdev) {
if (*prev) {
*prev = pdev;
@@ -1315,18 +1350,11 @@ int i7core_get_onedevice(struct pci_dev **prev, int devno,
i7core_dev = get_i7core_dev(socket);
if (!i7core_dev) {
- i7core_dev = kzalloc(sizeof(*i7core_dev), GFP_KERNEL);
- if (!i7core_dev)
- return -ENOMEM;
- i7core_dev->pdev = kzalloc(sizeof(*i7core_dev->pdev) * n_devs,
- GFP_KERNEL);
- if (!i7core_dev->pdev) {
- kfree(i7core_dev);
+ i7core_dev = alloc_i7core_dev(socket, table);
+ if (!i7core_dev) {
+ pci_dev_put(pdev);
return -ENOMEM;
}
- i7core_dev->socket = socket;
- i7core_dev->n_devs = n_devs;
- list_add_tail(&i7core_dev->list, &i7core_edac_list);
}
if (i7core_dev->pdev[devno]) {
@@ -1368,27 +1396,31 @@ int i7core_get_onedevice(struct pci_dev **prev, int devno,
dev_descr->func,
PCI_VENDOR_ID_INTEL, dev_descr->dev_id);
+ /*
+ * As stated on drivers/pci/search.c, the reference count for
+ * @from is always decremented if it is not %NULL. So, as we need
+ * to get all devices up to null, we need to do a get for the device
+ */
+ pci_dev_get(pdev);
+
*prev = pdev;
return 0;
}
-static int i7core_get_devices(struct pci_id_table *table)
+static int i7core_get_all_devices(void)
{
int i, rc, last_bus;
struct pci_dev *pdev = NULL;
- struct pci_id_descr *dev_descr;
+ const struct pci_id_table *table = pci_dev_table;
last_bus = i7core_pci_lastbus();
while (table && table->descr) {
- dev_descr = table->descr;
for (i = 0; i < table->n_devs; i++) {
pdev = NULL;
do {
- rc = i7core_get_onedevice(&pdev, i,
- &dev_descr[i],
- table->n_devs,
+ rc = i7core_get_onedevice(&pdev, table, i,
last_bus);
if (rc < 0) {
if (i == 0) {
@@ -1404,7 +1436,6 @@ static int i7core_get_devices(struct pci_id_table *table)
}
return 0;
- return 0;
}
static int mci_bind_devs(struct mem_ctl_info *mci,
@@ -1414,10 +1445,6 @@ static int mci_bind_devs(struct mem_ctl_info *mci,
struct pci_dev *pdev;
int i, func, slot;
- /* Associates i7core_dev and mci for future usage */
- pvt->i7core_dev = i7core_dev;
- i7core_dev->mci = mci;
-
pvt->is_registered = 0;
for (i = 0; i < i7core_dev->n_devs; i++) {
pdev = i7core_dev->pdev[i];
@@ -1448,15 +1475,6 @@ static int mci_bind_devs(struct mem_ctl_info *mci,
pvt->is_registered = 1;
}
- /*
- * Add extra nodes to count errors on udimm
- * For registered memory, this is not needed, since the counters
- * are already displayed at the standard locations
- */
- if (!pvt->is_registered)
- i7core_sysfs_attrs[ARRAY_SIZE(i7core_sysfs_attrs)-2].grp =
- &i7core_udimm_counters;
-
return 0;
error:
@@ -1470,7 +1488,9 @@ error:
Error check routines
****************************************************************************/
static void i7core_rdimm_update_csrow(struct mem_ctl_info *mci,
- int chan, int dimm, int add)
+ const int chan,
+ const int dimm,
+ const int add)
{
char *msg;
struct i7core_pvt *pvt = mci->pvt_info;
@@ -1487,7 +1507,10 @@ static void i7core_rdimm_update_csrow(struct mem_ctl_info *mci,
}
static void i7core_rdimm_update_ce_count(struct mem_ctl_info *mci,
- int chan, int new0, int new1, int new2)
+ const int chan,
+ const int new0,
+ const int new1,
+ const int new2)
{
struct i7core_pvt *pvt = mci->pvt_info;
int add0 = 0, add1 = 0, add2 = 0;
@@ -1641,7 +1664,7 @@ static void i7core_udimm_check_mc_ecc_err(struct mem_ctl_info *mci)
* fields
*/
static void i7core_mce_output_error(struct mem_ctl_info *mci,
- struct mce *m)
+ const struct mce *m)
{
struct i7core_pvt *pvt = mci->pvt_info;
char *type, *optype, *err, *msg;
@@ -1845,28 +1868,85 @@ static int i7core_mce_check_error(void *priv, struct mce *mce)
return 1;
}
-static int i7core_register_mci(struct i7core_dev *i7core_dev,
- int num_channels, int num_csrows)
+static void i7core_pci_ctl_create(struct i7core_pvt *pvt)
+{
+ pvt->i7core_pci = edac_pci_create_generic_ctl(
+ &pvt->i7core_dev->pdev[0]->dev,
+ EDAC_MOD_STR);
+ if (unlikely(!pvt->i7core_pci))
+ pr_warn("Unable to setup PCI error report via EDAC\n");
+}
+
+static void i7core_pci_ctl_release(struct i7core_pvt *pvt)
+{
+ if (likely(pvt->i7core_pci))
+ edac_pci_release_generic_ctl(pvt->i7core_pci);
+ else
+ i7core_printk(KERN_ERR,
+ "Couldn't find mem_ctl_info for socket %d\n",
+ pvt->i7core_dev->socket);
+ pvt->i7core_pci = NULL;
+}
+
+static void i7core_unregister_mci(struct i7core_dev *i7core_dev)
+{
+ struct mem_ctl_info *mci = i7core_dev->mci;
+ struct i7core_pvt *pvt;
+
+ if (unlikely(!mci || !mci->pvt_info)) {
+ debugf0("MC: " __FILE__ ": %s(): dev = %p\n",
+ __func__, &i7core_dev->pdev[0]->dev);
+
+ i7core_printk(KERN_ERR, "Couldn't find mci handler\n");
+ return;
+ }
+
+ pvt = mci->pvt_info;
+
+ debugf0("MC: " __FILE__ ": %s(): mci = %p, dev = %p\n",
+ __func__, mci, &i7core_dev->pdev[0]->dev);
+
+ /* Disable MCE NMI handler */
+ edac_mce_unregister(&pvt->edac_mce);
+
+ /* Disable EDAC polling */
+ i7core_pci_ctl_release(pvt);
+
+ /* Remove MC sysfs nodes */
+ edac_mc_del_mc(mci->dev);
+
+ debugf1("%s: free mci struct\n", mci->ctl_name);
+ kfree(mci->ctl_name);
+ edac_mc_free(mci);
+ i7core_dev->mci = NULL;
+}
+
+static int i7core_register_mci(struct i7core_dev *i7core_dev)
{
struct mem_ctl_info *mci;
struct i7core_pvt *pvt;
- int csrow = 0;
- int rc;
+ int rc, channels, csrows;
+
+ /* Check the number of active and not disabled channels */
+ rc = i7core_get_active_channels(i7core_dev->socket, &channels, &csrows);
+ if (unlikely(rc < 0))
+ return rc;
/* allocate a new MC control structure */
- mci = edac_mc_alloc(sizeof(*pvt), num_csrows, num_channels,
- i7core_dev->socket);
+ mci = edac_mc_alloc(sizeof(*pvt), csrows, channels, i7core_dev->socket);
if (unlikely(!mci))
return -ENOMEM;
- debugf0("MC: " __FILE__ ": %s(): mci = %p\n", __func__, mci);
-
- /* record ptr to the generic device */
- mci->dev = &i7core_dev->pdev[0]->dev;
+ debugf0("MC: " __FILE__ ": %s(): mci = %p, dev = %p\n",
+ __func__, mci, &i7core_dev->pdev[0]->dev);
pvt = mci->pvt_info;
memset(pvt, 0, sizeof(*pvt));
+ /* Associates i7core_dev and mci for future usage */
+ pvt->i7core_dev = i7core_dev;
+ i7core_dev->mci = mci;
+
/*
* FIXME: how to handle RDDR3 at MCI level? It is possible to have
* Mixed RDDR3/UDDR3 with Nehalem, provided that they are on different
@@ -1881,17 +1961,23 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev,
i7core_dev->socket);
mci->dev_name = pci_name(i7core_dev->pdev[0]);
mci->ctl_page_to_phys = NULL;
- mci->mc_driver_sysfs_attributes = i7core_sysfs_attrs;
- /* Set the function pointer to an actual operation function */
- mci->edac_check = i7core_check_error;
/* Store pci devices at mci for faster access */
rc = mci_bind_devs(mci, i7core_dev);
if (unlikely(rc < 0))
- goto fail;
+ goto fail0;
+
+ if (pvt->is_registered)
+ mci->mc_driver_sysfs_attributes = i7core_sysfs_rdimm_attrs;
+ else
+ mci->mc_driver_sysfs_attributes = i7core_sysfs_udimm_attrs;
/* Get dimm basic config */
- get_dimm_config(mci, &csrow);
+ get_dimm_config(mci);
+ /* record ptr to the generic device */
+ mci->dev = &i7core_dev->pdev[0]->dev;
+ /* Set the function pointer to an actual operation function */
+ mci->edac_check = i7core_check_error;
/* add this new MC control structure to EDAC's list of MCs */
if (unlikely(edac_mc_add_mc(mci))) {
@@ -1902,19 +1988,7 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev,
*/
rc = -EINVAL;
- goto fail;
- }
-
- /* allocating generic PCI control info */
- i7core_pci = edac_pci_create_generic_ctl(&i7core_dev->pdev[0]->dev,
- EDAC_MOD_STR);
- if (unlikely(!i7core_pci)) {
- printk(KERN_WARNING
- "%s(): Unable to create PCI control\n",
- __func__);
- printk(KERN_WARNING
- "%s(): PCI error report via EDAC not setup\n",
- __func__);
+ goto fail0;
}
/* Default error mask is any memory */
@@ -1925,19 +1999,28 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev,
pvt->inject.page = -1;
pvt->inject.col = -1;
+ /* allocating generic PCI control info */
+ i7core_pci_ctl_create(pvt);
+
/* Registers on edac_mce in order to receive memory errors */
pvt->edac_mce.priv = mci;
pvt->edac_mce.check_error = i7core_mce_check_error;
-
rc = edac_mce_register(&pvt->edac_mce);
if (unlikely(rc < 0)) {
debugf0("MC: " __FILE__
": %s(): failed edac_mce_register()\n", __func__);
+ goto fail1;
}
-fail:
- if (rc < 0)
- edac_mc_free(mci);
+ return 0;
+
+fail1:
+ i7core_pci_ctl_release(pvt);
+ edac_mc_del_mc(mci->dev);
+fail0:
+ kfree(mci->ctl_name);
+ edac_mc_free(mci);
+ i7core_dev->mci = NULL;
return rc;
}
@@ -1949,8 +2032,6 @@ fail:
* < 0 for error code
*/
-static int probed = 0;
-
static int __devinit i7core_probe(struct pci_dev *pdev,
const struct pci_device_id *id)
{
@@ -1965,25 +2046,16 @@ static int __devinit i7core_probe(struct pci_dev *pdev,
*/
if (unlikely(probed >= 1)) {
mutex_unlock(&i7core_edac_lock);
- return -EINVAL;
+ return -ENODEV;
}
probed++;
- rc = i7core_get_devices(pci_dev_table);
+ rc = i7core_get_all_devices();
if (unlikely(rc < 0))
goto fail0;
list_for_each_entry(i7core_dev, &i7core_edac_list, list) {
- int channels;
- int csrows;
-
- /* Check the number of active and not disabled channels */
- rc = i7core_get_active_channels(i7core_dev->socket,
- &channels, &csrows);
- if (unlikely(rc < 0))
- goto fail1;
-
- rc = i7core_register_mci(i7core_dev, channels, csrows);
+ rc = i7core_register_mci(i7core_dev);
if (unlikely(rc < 0))
goto fail1;
}
@@ -1994,6 +2066,9 @@ static int __devinit i7core_probe(struct pci_dev *pdev,
return 0;
fail1:
+ list_for_each_entry(i7core_dev, &i7core_edac_list, list)
+ i7core_unregister_mci(i7core_dev);
+
i7core_put_all_devices();
fail0:
mutex_unlock(&i7core_edac_lock);
@@ -2006,14 +2081,10 @@ fail0:
*/
static void __devexit i7core_remove(struct pci_dev *pdev)
{
- struct mem_ctl_info *mci;
- struct i7core_dev *i7core_dev, *tmp;
+ struct i7core_dev *i7core_dev;
debugf0(__FILE__ ": %s()\n", __func__);
- if (i7core_pci)
- edac_pci_release_generic_ctl(i7core_pci);
-
/*
* we have a trouble here: pdev value for removal will be wrong, since
* it will point to the X58 register used to detect that the machine
@@ -2023,22 +2094,18 @@ static void __devexit i7core_remove(struct pci_dev *pdev)
*/
mutex_lock(&i7core_edac_lock);
- list_for_each_entry_safe(i7core_dev, tmp, &i7core_edac_list, list) {
- mci = edac_mc_del_mc(&i7core_dev->pdev[0]->dev);
- if (mci) {
- struct i7core_pvt *pvt = mci->pvt_info;
-
- i7core_dev = pvt->i7core_dev;
- edac_mce_unregister(&pvt->edac_mce);
- kfree(mci->ctl_name);
- edac_mc_free(mci);
- i7core_put_devices(i7core_dev);
- } else {
- i7core_printk(KERN_ERR,
- "Couldn't find mci for socket %d\n",
- i7core_dev->socket);
- }
+
+ if (unlikely(!probed)) {
+ mutex_unlock(&i7core_edac_lock);
+ return;
}
+
+ list_for_each_entry(i7core_dev, &i7core_edac_list, list)
+ i7core_unregister_mci(i7core_dev);
+
+ /* Release PCI resources */
+ i7core_put_all_devices();
+
probed--;
mutex_unlock(&i7core_edac_lock);
@@ -2070,7 +2137,8 @@ static int __init i7core_init(void)
/* Ensure that the OPSTATE is set correctly for POLL or NMI */
opstate_init();
- i7core_xeon_pci_fixup(pci_dev_table);
+ if (use_pci_fixup)
+ i7core_xeon_pci_fixup(pci_dev_table);
pci_rc = pci_register_driver(&i7core_driver);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-21 06:46:09 +0100