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path: root/drivers/edac/e7xxx_edac.c
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Diffstat (limited to 'drivers/edac/e7xxx_edac.c')
-rw-r--r--drivers/edac/e7xxx_edac.c165
1 files changed, 79 insertions, 86 deletions
diff --git a/drivers/edac/e7xxx_edac.c b/drivers/edac/e7xxx_edac.c
index 9b59c661f45e..a9518d3e4be4 100644
--- a/drivers/edac/e7xxx_edac.c
+++ b/drivers/edac/e7xxx_edac.c
@@ -11,9 +11,9 @@
* http://www.anime.net/~goemon/linux-ecc/
*
* Contributors:
- * Eric Biederman (Linux Networx)
- * Tom Zimmerman (Linux Networx)
- * Jim Garlick (Lawrence Livermore National Labs)
+ * Eric Biederman (Linux Networx)
+ * Tom Zimmerman (Linux Networx)
+ * Jim Garlick (Lawrence Livermore National Labs)
* Dave Peterson (Lawrence Livermore National Labs)
* That One Guy (Some other place)
* Wang Zhenyu (intel.com)
@@ -22,7 +22,6 @@
*
*/
-
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -31,14 +30,11 @@
#include <linux/slab.h>
#include "edac_mc.h"
-
#define e7xxx_printk(level, fmt, arg...) \
- edac_printk(level, "e7xxx", fmt, ##arg)
-
+ edac_printk(level, "e7xxx", fmt, ##arg)
#define e7xxx_mc_printk(mci, level, fmt, arg...) \
- edac_mc_chipset_printk(mci, level, "e7xxx", fmt, ##arg)
-
+ edac_mc_chipset_printk(mci, level, "e7xxx", fmt, ##arg)
#ifndef PCI_DEVICE_ID_INTEL_7205_0
#define PCI_DEVICE_ID_INTEL_7205_0 0x255d
@@ -72,11 +68,9 @@
#define PCI_DEVICE_ID_INTEL_7505_1_ERR 0x2551
#endif /* PCI_DEVICE_ID_INTEL_7505_1_ERR */
-
#define E7XXX_NR_CSROWS 8 /* number of csrows */
#define E7XXX_NR_DIMMS 8 /* FIXME - is this correct? */
-
/* E7XXX register addresses - device 0 function 0 */
#define E7XXX_DRB 0x60 /* DRAM row boundary register (8b) */
#define E7XXX_DRA 0x70 /* DRAM row attribute register (8b) */
@@ -126,7 +120,6 @@ enum e7xxx_chips {
E7205,
};
-
struct e7xxx_pvt {
struct pci_dev *bridge_ck;
u32 tolm;
@@ -135,13 +128,11 @@ struct e7xxx_pvt {
const struct e7xxx_dev_info *dev_info;
};
-
struct e7xxx_dev_info {
u16 err_dev;
const char *ctl_name;
};
-
struct e7xxx_error_info {
u8 dram_ferr;
u8 dram_nerr;
@@ -152,20 +143,23 @@ struct e7xxx_error_info {
static const struct e7xxx_dev_info e7xxx_devs[] = {
[E7500] = {
- .err_dev = PCI_DEVICE_ID_INTEL_7500_1_ERR,
- .ctl_name = "E7500"},
+ .err_dev = PCI_DEVICE_ID_INTEL_7500_1_ERR,
+ .ctl_name = "E7500"
+ },
[E7501] = {
- .err_dev = PCI_DEVICE_ID_INTEL_7501_1_ERR,
- .ctl_name = "E7501"},
+ .err_dev = PCI_DEVICE_ID_INTEL_7501_1_ERR,
+ .ctl_name = "E7501"
+ },
[E7505] = {
- .err_dev = PCI_DEVICE_ID_INTEL_7505_1_ERR,
- .ctl_name = "E7505"},
+ .err_dev = PCI_DEVICE_ID_INTEL_7505_1_ERR,
+ .ctl_name = "E7505"
+ },
[E7205] = {
- .err_dev = PCI_DEVICE_ID_INTEL_7205_1_ERR,
- .ctl_name = "E7205"},
+ .err_dev = PCI_DEVICE_ID_INTEL_7205_1_ERR,
+ .ctl_name = "E7205"
+ },
};
-
/* FIXME - is this valid for both SECDED and S4ECD4ED? */
static inline int e7xxx_find_channel(u16 syndrome)
{
@@ -173,16 +167,18 @@ static inline int e7xxx_find_channel(u16 syndrome)
if ((syndrome & 0xff00) == 0)
return 0;
+
if ((syndrome & 0x00ff) == 0)
return 1;
+
if ((syndrome & 0xf000) == 0 || (syndrome & 0x0f00) == 0)
return 0;
+
return 1;
}
-
-static unsigned long
-ctl_page_to_phys(struct mem_ctl_info *mci, unsigned long page)
+static unsigned long ctl_page_to_phys(struct mem_ctl_info *mci,
+ unsigned long page)
{
u32 remap;
struct e7xxx_pvt *pvt = (struct e7xxx_pvt *) mci->pvt_info;
@@ -190,17 +186,20 @@ ctl_page_to_phys(struct mem_ctl_info *mci, unsigned long page)
debugf3("%s()\n", __func__);
if ((page < pvt->tolm) ||
- ((page >= 0x100000) && (page < pvt->remapbase)))
+ ((page >= 0x100000) && (page < pvt->remapbase)))
return page;
+
remap = (page - pvt->tolm) + pvt->remapbase;
+
if (remap < pvt->remaplimit)
return remap;
+
e7xxx_printk(KERN_ERR, "Invalid page %lx - out of range\n", page);
return pvt->tolm - 1;
}
-
-static void process_ce(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
+static void process_ce(struct mem_ctl_info *mci,
+ struct e7xxx_error_info *info)
{
u32 error_1b, page;
u16 syndrome;
@@ -208,52 +207,46 @@ static void process_ce(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
int channel;
debugf3("%s()\n", __func__);
-
/* read the error address */
error_1b = info->dram_celog_add;
/* FIXME - should use PAGE_SHIFT */
- page = error_1b >> 6; /* convert the address to 4k page */
+ page = error_1b >> 6; /* convert the address to 4k page */
/* read the syndrome */
syndrome = info->dram_celog_syndrome;
/* FIXME - check for -1 */
row = edac_mc_find_csrow_by_page(mci, page);
/* convert syndrome to channel */
channel = e7xxx_find_channel(syndrome);
- edac_mc_handle_ce(mci, page, 0, syndrome, row, channel,
- "e7xxx CE");
+ edac_mc_handle_ce(mci, page, 0, syndrome, row, channel, "e7xxx CE");
}
-
static void process_ce_no_info(struct mem_ctl_info *mci)
{
debugf3("%s()\n", __func__);
edac_mc_handle_ce_no_info(mci, "e7xxx CE log register overflow");
}
-
-static void process_ue(struct mem_ctl_info *mci, struct e7xxx_error_info *info)
+static void process_ue(struct mem_ctl_info *mci,
+ struct e7xxx_error_info *info)
{
u32 error_2b, block_page;
int row;
debugf3("%s()\n", __func__);
-
/* read the error address */
error_2b = info->dram_uelog_add;
/* FIXME - should use PAGE_SHIFT */
- block_page = error_2b >> 6; /* convert to 4k address */
+ block_page = error_2b >> 6; /* convert to 4k address */
row = edac_mc_find_csrow_by_page(mci, block_page);
edac_mc_handle_ue(mci, block_page, 0, row, "e7xxx UE");
}
-
static void process_ue_no_info(struct mem_ctl_info *mci)
{
debugf3("%s()\n", __func__);
edac_mc_handle_ue_no_info(mci, "e7xxx UE log register overflow");
}
-
static void e7xxx_get_error_info (struct mem_ctl_info *mci,
struct e7xxx_error_info *info)
{
@@ -261,31 +254,29 @@ static void e7xxx_get_error_info (struct mem_ctl_info *mci,
pvt = (struct e7xxx_pvt *) mci->pvt_info;
pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_FERR,
- &info->dram_ferr);
+ &info->dram_ferr);
pci_read_config_byte(pvt->bridge_ck, E7XXX_DRAM_NERR,
- &info->dram_nerr);
+ &info->dram_nerr);
if ((info->dram_ferr & 1) || (info->dram_nerr & 1)) {
pci_read_config_dword(pvt->bridge_ck, E7XXX_DRAM_CELOG_ADD,
- &info->dram_celog_add);
+ &info->dram_celog_add);
pci_read_config_word(pvt->bridge_ck,
- E7XXX_DRAM_CELOG_SYNDROME, &info->dram_celog_syndrome);
+ E7XXX_DRAM_CELOG_SYNDROME,
+ &info->dram_celog_syndrome);
}
if ((info->dram_ferr & 2) || (info->dram_nerr & 2))
pci_read_config_dword(pvt->bridge_ck, E7XXX_DRAM_UELOG_ADD,
- &info->dram_uelog_add);
+ &info->dram_uelog_add);
if (info->dram_ferr & 3)
- pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_FERR, 0x03,
- 0x03);
+ pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_FERR, 0x03, 0x03);
if (info->dram_nerr & 3)
- pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_NERR, 0x03,
- 0x03);
+ pci_write_bits8(pvt->bridge_ck, E7XXX_DRAM_NERR, 0x03, 0x03);
}
-
static int e7xxx_process_error_info (struct mem_ctl_info *mci,
struct e7xxx_error_info *info, int handle_errors)
{
@@ -333,7 +324,6 @@ static int e7xxx_process_error_info (struct mem_ctl_info *mci,
return error_found;
}
-
static void e7xxx_check(struct mem_ctl_info *mci)
{
struct e7xxx_error_info info;
@@ -343,7 +333,6 @@ static void e7xxx_check(struct mem_ctl_info *mci)
e7xxx_process_error_info(mci, &info, 1);
}
-
static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc = -ENODEV;
@@ -363,13 +352,14 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
/* need to find out the number of channels */
pci_read_config_dword(pdev, E7XXX_DRC, &drc);
+
/* only e7501 can be single channel */
if (dev_idx == E7501) {
drc_chan = ((drc >> 22) & 0x1);
drc_drbg = (drc >> 18) & 0x3;
}
- drc_ddim = (drc >> 20) & 0x3;
+ drc_ddim = (drc >> 20) & 0x3;
mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1);
if (mci == NULL) {
@@ -378,10 +368,9 @@ static int e7xxx_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;
+ mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED |
+ EDAC_FLAG_S4ECD4ED;
/* FIXME - what if different memory types are in different csrows? */
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = "$Revision: 1.5.2.9 $";
@@ -391,19 +380,18 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
pvt = (struct e7xxx_pvt *) mci->pvt_info;
pvt->dev_info = &e7xxx_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) {
e7xxx_printk(KERN_ERR, "error reporting device not found:"
- "vendor %x device 0x%x (broken BIOS?)\n",
- PCI_VENDOR_ID_INTEL,
- e7xxx_devs[dev_idx].err_dev);
+ "vendor %x device 0x%x (broken BIOS?)\n",
+ PCI_VENDOR_ID_INTEL, e7xxx_devs[dev_idx].err_dev);
goto fail;
}
debugf3("%s(): more mci init\n", __func__);
mci->ctl_name = pvt->dev_info->ctl_name;
-
mci->edac_check = e7xxx_check;
mci->ctl_page_to_phys = ctl_page_to_phys;
@@ -428,15 +416,16 @@ static int e7xxx_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;
/*
@@ -466,8 +455,8 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
pci_read_config_word(mci->pdev, E7XXX_REMAPLIMIT, &pci_data);
pvt->remaplimit = ((u32) pci_data) << 14;
e7xxx_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);
/* clear any pending errors, or initial state bits */
e7xxx_get_error_info(mci, &discard);
@@ -492,17 +481,16 @@ fail:
}
/* returns count (>= 0), or negative on error */
-static int __devinit
-e7xxx_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
+static int __devinit e7xxx_init_one(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
{
debugf0("%s()\n", __func__);
/* wake up and enable device */
return pci_enable_device(pdev) ?
- -EIO : e7xxx_probe1(pdev, ent->driver_data);
+ -EIO : e7xxx_probe1(pdev, ent->driver_data);
}
-
static void __devexit e7xxx_remove_one(struct pci_dev *pdev)
{
struct mem_ctl_info *mci;
@@ -518,22 +506,30 @@ static void __devexit e7xxx_remove_one(struct pci_dev *pdev)
edac_mc_free(mci);
}
-
static const struct pci_device_id e7xxx_pci_tbl[] __devinitdata = {
- {PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- E7205},
- {PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- E7500},
- {PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- E7501},
- {PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
- E7505},
- {0,} /* 0 terminated list. */
+ {
+ PCI_VEND_DEV(INTEL, 7205_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ E7205
+ },
+ {
+ PCI_VEND_DEV(INTEL, 7500_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ E7500
+ },
+ {
+ PCI_VEND_DEV(INTEL, 7501_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ E7501
+ },
+ {
+ PCI_VEND_DEV(INTEL, 7505_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+ E7505
+ },
+ {
+ 0,
+ } /* 0 terminated list. */
};
MODULE_DEVICE_TABLE(pci, e7xxx_pci_tbl);
-
static struct pci_driver e7xxx_driver = {
.name = EDAC_MOD_STR,
.probe = e7xxx_init_one,
@@ -541,13 +537,11 @@ static struct pci_driver e7xxx_driver = {
.id_table = e7xxx_pci_tbl,
};
-
static int __init e7xxx_init(void)
{
return pci_register_driver(&e7xxx_driver);
}
-
static void __exit e7xxx_exit(void)
{
pci_unregister_driver(&e7xxx_driver);
@@ -556,8 +550,7 @@ static void __exit e7xxx_exit(void)
module_init(e7xxx_init);
module_exit(e7xxx_exit);
-
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Linux Networx (http://lnxi.com) Thayne Harbaugh et al\n"
- "Based on.work by Dan Hollis et al");
+ "Based on.work by Dan Hollis et al");
MODULE_DESCRIPTION("MC support for Intel e7xxx memory controllers");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-03 08:47:05 +0100