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path: root/drivers/edac/e752x_edac.c
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Diffstat (limited to 'drivers/edac/e752x_edac.c')
-rw-r--r--drivers/edac/e752x_edac.c234
1 files changed, 134 insertions, 100 deletions
diff --git a/drivers/edac/e752x_edac.c b/drivers/edac/e752x_edac.c
index c86db23d3af3..265cce72497c 100644
--- a/drivers/edac/e752x_edac.c
+++ b/drivers/edac/e752x_edac.c
@@ -17,26 +17,19 @@
*
*/
-
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
-
#include <linux/pci.h>
#include <linux/pci_ids.h>
-
#include <linux/slab.h>
-
#include "edac_mc.h"
-
#define e752x_printk(level, fmt, arg...) \
- edac_printk(level, "e752x", fmt, ##arg)
-
+ edac_printk(level, "e752x", fmt, ##arg)
#define e752x_mc_printk(mci, level, fmt, arg...) \
- edac_mc_chipset_printk(mci, level, "e752x", fmt, ##arg)
-
+ edac_mc_chipset_printk(mci, level, "e752x", fmt, ##arg)
#ifndef PCI_DEVICE_ID_INTEL_7520_0
#define PCI_DEVICE_ID_INTEL_7520_0 0x3590
@@ -64,7 +57,6 @@
#define E752X_NR_CSROWS 8 /* number of csrows */
-
/* E752X register addresses - device 0 function 0 */
#define E752X_DRB 0x60 /* DRAM row boundary register (8b) */
#define E752X_DRA 0x70 /* DRAM row attribute register (8b) */
@@ -164,7 +156,6 @@ enum e752x_chips {
E7320 = 2
};
-
struct e752x_pvt {
struct pci_dev *bridge_ck;
struct pci_dev *dev_d0f0;
@@ -178,7 +169,6 @@ struct e752x_pvt {
const struct e752x_dev_info *dev_info;
};
-
struct e752x_dev_info {
u16 err_dev;
u16 ctl_dev;
@@ -207,22 +197,24 @@ struct e752x_error_info {
static const struct e752x_dev_info e752x_devs[] = {
[E7520] = {
- .err_dev = PCI_DEVICE_ID_INTEL_7520_1_ERR,
- .ctl_dev = PCI_DEVICE_ID_INTEL_7520_0,
- .ctl_name = "E7520"},
+ .err_dev = PCI_DEVICE_ID_INTEL_7520_1_ERR,
+ .ctl_dev = PCI_DEVICE_ID_INTEL_7520_0,
+ .ctl_name = "E7520"
+ },
[E7525] = {
- .err_dev = PCI_DEVICE_ID_INTEL_7525_1_ERR,
- .ctl_dev = PCI_DEVICE_ID_INTEL_7525_0,
- .ctl_name = "E7525"},
+ .err_dev = PCI_DEVICE_ID_INTEL_7525_1_ERR,
+ .ctl_dev = PCI_DEVICE_ID_INTEL_7525_0,
+ .ctl_name = "E7525"
+ },
[E7320] = {
- .err_dev = PCI_DEVICE_ID_INTEL_7320_1_ERR,
- .ctl_dev = PCI_DEVICE_ID_INTEL_7320_0,
- .ctl_name = "E7320"},
+ .err_dev = PCI_DEVICE_ID_INTEL_7320_1_ERR,
+ .ctl_dev = PCI_DEVICE_ID_INTEL_7320_0,
+ .ctl_name = "E7320"
+ },
};
-
static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci,
- unsigned long page)
+ unsigned long page)
{
u32 remap;
struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info;
@@ -231,17 +223,21 @@ static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci,
if (page < pvt->tolm)
return page;
+
if ((page >= 0x100000) && (page < pvt->remapbase))
return page;
+
remap = (page - pvt->tolm) + pvt->remapbase;
+
if (remap < pvt->remaplimit)
return remap;
+
e752x_printk(KERN_ERR, "Invalid page %lx - out of range\n", page);
return pvt->tolm - 1;
}
static void do_process_ce(struct mem_ctl_info *mci, u16 error_one,
- u32 sec1_add, u16 sec1_syndrome)
+ u32 sec1_add, u16 sec1_syndrome)
{
u32 page;
int row;
@@ -259,34 +255,36 @@ static void do_process_ce(struct mem_ctl_info *mci, u16 error_one,
/* chip select are bits 14 & 13 */
row = ((page >> 1) & 3);
e752x_printk(KERN_WARNING,
- "Test row %d Table %d %d %d %d %d %d %d %d\n",
- row, pvt->map[0], pvt->map[1], pvt->map[2],
- pvt->map[3], pvt->map[4], pvt->map[5],
- pvt->map[6], pvt->map[7]);
+ "Test row %d Table %d %d %d %d %d %d %d %d\n", row,
+ pvt->map[0], pvt->map[1], pvt->map[2], pvt->map[3],
+ pvt->map[4], pvt->map[5], pvt->map[6], pvt->map[7]);
/* test for channel remapping */
for (i = 0; i < 8; i++) {
if (pvt->map[i] == row)
break;
}
+
e752x_printk(KERN_WARNING, "Test computed row %d\n", i);
+
if (i < 8)
row = i;
else
e752x_mc_printk(mci, KERN_WARNING,
- "row %d not found in remap table\n", row);
+ "row %d not found in remap table\n", row);
} else
row = edac_mc_find_csrow_by_page(mci, page);
+
/* 0 = channel A, 1 = channel B */
channel = !(error_one & 1);
if (!pvt->map_type)
row = 7 - row;
+
edac_mc_handle_ce(mci, page, 0, sec1_syndrome, row, channel,
- "e752x CE");
+ "e752x CE");
}
-
static inline void process_ce(struct mem_ctl_info *mci, u16 error_one,
u32 sec1_add, u16 sec1_syndrome, int *error_found,
int handle_error)
@@ -297,8 +295,8 @@ static inline void process_ce(struct mem_ctl_info *mci, u16 error_one,
do_process_ce(mci, error_one, sec1_add, sec1_syndrome);
}
-static void do_process_ue(struct mem_ctl_info *mci, u16 error_one, u32 ded_add,
- u32 scrb_add)
+static void do_process_ue(struct mem_ctl_info *mci, u16 error_one,
+ u32 ded_add, u32 scrb_add)
{
u32 error_2b, block_page;
int row;
@@ -308,25 +306,31 @@ static void do_process_ue(struct mem_ctl_info *mci, u16 error_one, u32 ded_add,
if (error_one & 0x0202) {
error_2b = ded_add;
+
/* convert to 4k address */
block_page = error_2b >> (PAGE_SHIFT - 4);
+
row = pvt->mc_symmetric ?
- /* chip select are bits 14 & 13 */
- ((block_page >> 1) & 3) :
- edac_mc_find_csrow_by_page(mci, block_page);
+ /* chip select are bits 14 & 13 */
+ ((block_page >> 1) & 3) :
+ edac_mc_find_csrow_by_page(mci, block_page);
+
edac_mc_handle_ue(mci, block_page, 0, row,
- "e752x UE from Read");
+ "e752x UE from Read");
}
if (error_one & 0x0404) {
error_2b = scrb_add;
+
/* convert to 4k address */
block_page = error_2b >> (PAGE_SHIFT - 4);
+
row = pvt->mc_symmetric ?
- /* chip select are bits 14 & 13 */
- ((block_page >> 1) & 3) :
- edac_mc_find_csrow_by_page(mci, block_page);
+ /* chip select are bits 14 & 13 */
+ ((block_page >> 1) & 3) :
+ edac_mc_find_csrow_by_page(mci, block_page);
+
edac_mc_handle_ue(mci, block_page, 0, row,
- "e752x UE from Scruber");
+ "e752x UE from Scruber");
}
}
@@ -359,13 +363,13 @@ static void do_process_ded_retry(struct mem_ctl_info *mci, u16 error,
struct e752x_pvt *pvt = (struct e752x_pvt *) mci->pvt_info;
error_1b = retry_add;
- page = error_1b >> (PAGE_SHIFT - 4); /* convert the addr to 4k page */
+ page = error_1b >> (PAGE_SHIFT - 4); /* convert the addr to 4k page */
row = pvt->mc_symmetric ?
- ((page >> 1) & 3) : /* chip select are bits 14 & 13 */
- edac_mc_find_csrow_by_page(mci, page);
+ ((page >> 1) & 3) : /* chip select are bits 14 & 13 */
+ edac_mc_find_csrow_by_page(mci, page);
e752x_mc_printk(mci, KERN_WARNING,
- "CE page 0x%lx, row %d : Memory read retry\n",
- (long unsigned int) page, row);
+ "CE page 0x%lx, row %d : Memory read retry\n",
+ (long unsigned int) page, row);
}
static inline void process_ded_retry(struct mem_ctl_info *mci, u16 error,
@@ -402,7 +406,7 @@ static void do_global_error(int fatal, u32 errors)
for (i = 0; i < 11; i++) {
if (errors & (1 << i))
e752x_printk(KERN_WARNING, "%sError %s\n",
- fatal_message[fatal], global_message[i]);
+ fatal_message[fatal], global_message[i]);
}
}
@@ -429,7 +433,7 @@ static void do_hub_error(int fatal, u8 errors)
for (i = 0; i < 7; i++) {
if (errors & (1 << i))
e752x_printk(KERN_WARNING, "%sError %s\n",
- fatal_message[fatal], hub_message[i]);
+ fatal_message[fatal], hub_message[i]);
}
}
@@ -456,7 +460,7 @@ static void do_membuf_error(u8 errors)
for (i = 0; i < 4; i++) {
if (errors & (1 << i))
e752x_printk(KERN_WARNING, "Non-Fatal Error %s\n",
- membuf_message[i]);
+ membuf_message[i]);
}
}
@@ -489,7 +493,7 @@ static void do_sysbus_error(int fatal, u32 errors)
for (i = 0; i < 10; i++) {
if (errors & (1 << i))
e752x_printk(KERN_WARNING, "%sError System Bus %s\n",
- fatal_message[fatal], global_message[i]);
+ fatal_message[fatal], global_message[i]);
}
}
@@ -502,33 +506,42 @@ static inline void sysbus_error(int fatal, u32 errors, int *error_found,
do_sysbus_error(fatal, errors);
}
-static void e752x_check_hub_interface (struct e752x_error_info *info,
+static void e752x_check_hub_interface(struct e752x_error_info *info,
int *error_found, int handle_error)
{
u8 stat8;
//pci_read_config_byte(dev,E752X_HI_FERR,&stat8);
+
stat8 = info->hi_ferr;
+
if(stat8 & 0x7f) { /* Error, so process */
stat8 &= 0x7f;
+
if(stat8 & 0x2b)
hub_error(1, stat8 & 0x2b, error_found, handle_error);
+
if(stat8 & 0x54)
hub_error(0, stat8 & 0x54, error_found, handle_error);
}
+
//pci_read_config_byte(dev,E752X_HI_NERR,&stat8);
+
stat8 = info->hi_nerr;
+
if(stat8 & 0x7f) { /* Error, so process */
stat8 &= 0x7f;
+
if (stat8 & 0x2b)
hub_error(1, stat8 & 0x2b, error_found, handle_error);
+
if(stat8 & 0x54)
hub_error(0, stat8 & 0x54, error_found, handle_error);
}
}
-static void e752x_check_sysbus (struct e752x_error_info *info, int *error_found,
- int handle_error)
+static void e752x_check_sysbus(struct e752x_error_info *info,
+ int *error_found, int handle_error)
{
u32 stat32, error32;
@@ -540,27 +553,34 @@ static void e752x_check_sysbus (struct e752x_error_info *info, int *error_found,
error32 = (stat32 >> 16) & 0x3ff;
stat32 = stat32 & 0x3ff;
+
if(stat32 & 0x083)
sysbus_error(1, stat32 & 0x083, error_found, handle_error);
+
if(stat32 & 0x37c)
sysbus_error(0, stat32 & 0x37c, error_found, handle_error);
+
if(error32 & 0x083)
sysbus_error(1, error32 & 0x083, error_found, handle_error);
+
if(error32 & 0x37c)
sysbus_error(0, error32 & 0x37c, error_found, handle_error);
}
-static void e752x_check_membuf (struct e752x_error_info *info, int *error_found,
- int handle_error)
+static void e752x_check_membuf (struct e752x_error_info *info,
+ int *error_found, int handle_error)
{
u8 stat8;
stat8 = info->buf_ferr;
+
if (stat8 & 0x0f) { /* Error, so process */
stat8 &= 0x0f;
membuf_error(stat8, error_found, handle_error);
}
+
stat8 = info->buf_nerr;
+
if (stat8 & 0x0f) { /* Error, so process */
stat8 &= 0x0f;
membuf_error(stat8, error_found, handle_error);
@@ -568,7 +588,8 @@ static void e752x_check_membuf (struct e752x_error_info *info, int *error_found,
}
static void e752x_check_dram (struct mem_ctl_info *mci,
- struct e752x_error_info *info, int *error_found, int handle_error)
+ struct e752x_error_info *info, int *error_found,
+ int handle_error)
{
u16 error_one, error_next;
@@ -618,7 +639,7 @@ static void e752x_check_dram (struct mem_ctl_info *mci,
}
static void e752x_get_error_info (struct mem_ctl_info *mci,
- struct e752x_error_info *info)
+ struct e752x_error_info *info)
{
struct pci_dev *dev;
struct e752x_pvt *pvt;
@@ -626,7 +647,6 @@ static void e752x_get_error_info (struct mem_ctl_info *mci,
memset(info, 0, sizeof(*info));
pvt = (struct e752x_pvt *) mci->pvt_info;
dev = pvt->dev_d0f1;
-
pci_read_config_dword(dev, E752X_FERR_GLOBAL, &info->ferr_global);
if (info->ferr_global) {
@@ -737,6 +757,7 @@ static int e752x_process_error_info (struct mem_ctl_info *mci,
static void e752x_check(struct mem_ctl_info *mci)
{
struct e752x_error_info info;
+
debugf3("%s()\n", __func__);
e752x_get_error_info(mci, &info);
e752x_process_error_info(mci, &info, 1);
@@ -752,9 +773,9 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
struct e752x_pvt *pvt = NULL;
u16 ddrcsr;
u32 drc;
- int drc_chan; /* Number of channels 0=1chan,1=2chan */
- int drc_drbg; /* DRB granularity 0=64mb,1=128mb */
- int drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */
+ int drc_chan; /* Number of channels 0=1chan,1=2chan */
+ int drc_drbg; /* DRB granularity 0=64mb, 1=128mb */
+ int drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */
u32 dra;
unsigned long last_cumul_size;
struct pci_dev *dev = NULL;
@@ -785,7 +806,6 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
}
debugf3("%s(): init mci\n", __func__);
-
mci->mtype_cap = MEM_FLAG_RDDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED |
EDAC_FLAG_S4ECD4ED;
@@ -798,19 +818,21 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
pvt = (struct e752x_pvt *) mci->pvt_info;
pvt->dev_info = &e752x_devs[dev_idx];
pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL,
- pvt->dev_info->err_dev,
- pvt->bridge_ck);
+ pvt->dev_info->err_dev,
+ pvt->bridge_ck);
+
if (pvt->bridge_ck == NULL)
pvt->bridge_ck = pci_scan_single_device(pdev->bus,
- PCI_DEVFN(0, 1));
+ PCI_DEVFN(0, 1));
+
if (pvt->bridge_ck == NULL) {
e752x_printk(KERN_ERR, "error reporting device not found:"
- "vendor %x device 0x%x (broken BIOS?)\n",
- PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].err_dev);
+ "vendor %x device 0x%x (broken BIOS?)\n",
+ PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].err_dev);
goto fail;
}
- pvt->mc_symmetric = ((ddrcsr & 0x10) != 0);
+ pvt->mc_symmetric = ((ddrcsr & 0x10) != 0);
debugf3("%s(): more mci init\n", __func__);
mci->ctl_name = pvt->dev_info->ctl_name;
mci->edac_check = e752x_check;
@@ -828,6 +850,7 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
for (last_cumul_size = index = 0; index < mci->nr_csrows; index++) {
u8 value;
u32 cumul_size;
+
/* mem_dev 0=x8, 1=x4 */
int mem_dev = (dra >> (index * 4 + 2)) & 0x3;
struct csrow_info *csrow = &mci->csrows[index];
@@ -838,15 +861,16 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
cumul_size = value << (25 + drc_drbg - PAGE_SHIFT);
debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
cumul_size);
+
if (cumul_size == last_cumul_size)
- continue; /* not populated */
+ continue; /* not populated */
csrow->first_page = last_cumul_size;
csrow->last_page = cumul_size - 1;
csrow->nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
- csrow->grain = 1 << 12; /* 4KiB - resolution of CELOG */
- csrow->mtype = MEM_RDDR; /* only one type supported */
+ csrow->grain = 1 << 12; /* 4KiB - resolution of CELOG */
+ csrow->mtype = MEM_RDDR; /* only one type supported */
csrow->dtype = mem_dev ? DEV_X4 : DEV_X8;
/*
@@ -870,29 +894,32 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
u8 value;
u8 last = 0;
u8 row = 0;
- for (index = 0; index < 8; index += 2) {
+ for (index = 0; index < 8; index += 2) {
pci_read_config_byte(mci->pdev, E752X_DRB + index,
- &value);
+ &value);
+
/* test if there is a dimm in this slot */
if (value == last) {
/* no dimm in the slot, so flag it as empty */
pvt->map[index] = 0xff;
pvt->map[index + 1] = 0xff;
- } else { /* there is a dimm in the slot */
+ } else { /* there is a dimm in the slot */
pvt->map[index] = row;
row++;
last = value;
/* test the next value to see if the dimm is
double sided */
pci_read_config_byte(mci->pdev,
- E752X_DRB + index + 1,
- &value);
+ E752X_DRB + index + 1,
+ &value);
pvt->map[index + 1] = (value == last) ?
- 0xff : /* the dimm is single sided,
- so flag as empty */
- row; /* this is a double sided dimm
- to save the next row # */
+ 0xff : /* the dimm is single sided,
+ * so flag as empty
+ */
+ row; /* this is a double sided dimm
+ * to save the next row #
+ */
row++;
last = value;
}
@@ -904,8 +931,8 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
pvt->map_type = ((stat8 & 0x0f) > ((stat8 >> 4) & 0x0f));
mci->edac_cap |= EDAC_FLAG_NONE;
-
debugf3("%s(): tolm, remapbase, remaplimit\n", __func__);
+
/* load the top of low memory, remap base, and remap limit vars */
pci_read_config_word(mci->pdev, E752X_TOLM, &pci_data);
pvt->tolm = ((u32) pci_data) << 4;
@@ -914,8 +941,8 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
pci_read_config_word(mci->pdev, E752X_REMAPLIMIT, &pci_data);
pvt->remaplimit = ((u32) pci_data) << 14;
e752x_printk(KERN_INFO,
- "tolm = %x, remapbase = %x, remaplimit = %x\n",
- pvt->tolm, pvt->remapbase, pvt->remaplimit);
+ "tolm = %x, remapbase = %x, remaplimit = %x\n", pvt->tolm,
+ pvt->remapbase, pvt->remaplimit);
if (edac_mc_add_mc(mci)) {
debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
@@ -923,7 +950,7 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
}
dev = pci_get_device(PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].ctl_dev,
- NULL);
+ NULL);
pvt->dev_d0f0 = dev;
/* find the error reporting device and clear errors */
dev = pvt->dev_d0f1 = pci_dev_get(pvt->bridge_ck);
@@ -936,8 +963,8 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
pci_write_config_byte(dev, E752X_BUF_SMICMD, 0x00);
pci_write_config_byte(dev, E752X_DRAM_ERRMASK, 0x00);
pci_write_config_byte(dev, E752X_DRAM_SMICMD, 0x00);
- /* clear other MCH errors */
- e752x_get_error_info(mci, &discard);
+
+ e752x_get_error_info(mci, &discard); /* clear other MCH errors */
/* get this far and it's successful */
debugf3("%s(): success\n", __func__);
@@ -947,28 +974,32 @@ fail:
if (mci) {
if (pvt->dev_d0f0)
pci_dev_put(pvt->dev_d0f0);
+
if (pvt->dev_d0f1)
pci_dev_put(pvt->dev_d0f1);
+
if (pvt->bridge_ck)
pci_dev_put(pvt->bridge_ck);
+
edac_mc_free(mci);
}
+
return rc;
}
/* returns count (>= 0), or negative on error */
static int __devinit e752x_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+ const struct pci_device_id *ent)
{
debugf0("%s()\n", __func__);
/* wake up and enable device */
if(pci_enable_device(pdev) < 0)
return -EIO;
+
return e752x_probe1(pdev, ent->driver_data);
}
-
static void __devexit e752x_remove_one(struct pci_dev *pdev)
{
struct mem_ctl_info *mci;
@@ -986,20 +1017,26 @@ static void __devexit e752x_remove_one(struct pci_dev *pdev)
edac_mc_free(mci);
}
-
static const struct pci_device_id e752x_pci_tbl[] __devinitdata = {
- {PCI_VEND_DEV(INTEL, 7520_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- E7520},
- {PCI_VEND_DEV(INTEL, 7525_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- E7525},
- {PCI_VEND_DEV(INTEL, 7320_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- E7320},
- {0,} /* 0 terminated list. */
+ {
+ PCI_VEND_DEV(INTEL, 7520_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ E7520
+ },
+ {
+ PCI_VEND_DEV(INTEL, 7525_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ E7525
+ },
+ {
+ PCI_VEND_DEV(INTEL, 7320_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ E7320
+ },
+ {
+ 0,
+ } /* 0 terminated list. */
};
MODULE_DEVICE_TABLE(pci, e752x_pci_tbl);
-
static struct pci_driver e752x_driver = {
.name = EDAC_MOD_STR,
.probe = e752x_init_one,
@@ -1007,7 +1044,6 @@ static struct pci_driver e752x_driver = {
.id_table = e752x_pci_tbl,
};
-
static int __init e752x_init(void)
{
int pci_rc;
@@ -1017,14 +1053,12 @@ static int __init e752x_init(void)
return (pci_rc < 0) ? pci_rc : 0;
}
-
static void __exit e752x_exit(void)
{
debugf3("%s()\n", __func__);
pci_unregister_driver(&e752x_driver);
}
-
module_init(e752x_init);
module_exit(e752x_exit);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-30 21:29:08 +0000