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[PATCH] EDAC: probe1 cleanup 1-of-2 

- Add lower-level functions that handle various parts of the initialization
  done by the xxx_probe1() functions.  Some of the xxx_probe1() functions are
  much too long and complicated (see "Chapter 5: Functions" in
  Documentation/CodingStyle).

- Cleanup of probe1() functions in EDAC

Signed-off-by: Doug Thompson <norsk5@xmission.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Doug Thompson 2006-06-30 01:56:08 -07:00 коммит произвёл Linus Torvalds
Родитель 2d7bbb91c8
Коммит 1318952514
6 изменённых файлов: 543 добавлений и 469 удалений
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108
drivers/edac/amd76x_edac.c
Просмотреть файл

@ -182,62 +182,20 @@ static void amd76x_check(struct mem_ctl_info *mci)
amd76x_process_error_info(mci, &info, 1);
}
/**
* amd76x_probe1 - Perform set up for detected device
* @pdev; PCI device detected
* @dev_idx: Device type index
*
* We have found an AMD76x and now need to set up the memory
* controller status reporting. We configure and set up the
* memory controller reporting and claim the device.
*/
static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
static void amd76x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
enum edac_type edac_mode)
{
int rc = -ENODEV;
struct csrow_info *csrow;
u32 mba, mba_base, mba_mask, dms;
int index;
struct mem_ctl_info *mci = NULL;
enum edac_type ems_modes[] = {
EDAC_NONE,
EDAC_EC,
EDAC_SECDED,
EDAC_SECDED
};
u32 ems;
u32 ems_mode;
struct amd76x_error_info discard;
debugf0("%s()\n", __func__);
pci_read_config_dword(pdev, AMD76X_ECC_MODE_STATUS, &ems);
ems_mode = (ems >> 10) & 0x3;
mci = edac_mc_alloc(0, AMD76X_NR_CSROWS, AMD76X_NR_CHANS);
if (mci == NULL) {
rc = -ENOMEM;
goto fail;
}
debugf0("%s(): mci = %p\n", __func__, mci);
mci->dev = &pdev->dev;
mci->mtype_cap = MEM_FLAG_RDDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
mci->edac_cap = ems_mode ?
(EDAC_FLAG_EC | EDAC_FLAG_SECDED) : EDAC_FLAG_NONE;
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = AMD76X_REVISION;
mci->ctl_name = amd76x_devs[dev_idx].ctl_name;
mci->edac_check = amd76x_check;
mci->ctl_page_to_phys = NULL;
for (index = 0; index < mci->nr_csrows; index++) {
struct csrow_info *csrow = &mci->csrows[index];
u32 mba;
u32 mba_base;
u32 mba_mask;
u32 dms;
csrow = &mci->csrows[index];
/* find the DRAM Chip Select Base address and mask */
pci_read_config_dword(pdev,
AMD76X_MEM_BASE_ADDR + (index * 4), &mba);
AMD76X_MEM_BASE_ADDR + (index * 4),
&mba);
if (!(mba & BIT(0)))
continue;
@ -252,9 +210,54 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
csrow->grain = csrow->nr_pages << PAGE_SHIFT;
csrow->mtype = MEM_RDDR;
csrow->dtype = ((dms >> index) & 0x1) ? DEV_X4 : DEV_UNKNOWN;
csrow->edac_mode = ems_modes[ems_mode];
csrow->edac_mode = edac_mode;
}
}
/**
* amd76x_probe1 - Perform set up for detected device
* @pdev; PCI device detected
* @dev_idx: Device type index
*
* We have found an AMD76x and now need to set up the memory
* controller status reporting. We configure and set up the
* memory controller reporting and claim the device.
*/
static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
{
static const enum edac_type ems_modes[] = {
EDAC_NONE,
EDAC_EC,
EDAC_SECDED,
EDAC_SECDED
};
struct mem_ctl_info *mci = NULL;
u32 ems;
u32 ems_mode;
struct amd76x_error_info discard;
debugf0("%s()\n", __func__);
pci_read_config_dword(pdev, AMD76X_ECC_MODE_STATUS, &ems);
ems_mode = (ems >> 10) & 0x3;
mci = edac_mc_alloc(0, AMD76X_NR_CSROWS, AMD76X_NR_CHANS);
if (mci == NULL) {
return -ENOMEM;
}
debugf0("%s(): mci = %p\n", __func__, mci);
mci->dev = &pdev->dev;
mci->mtype_cap = MEM_FLAG_RDDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
mci->edac_cap = ems_mode ?
(EDAC_FLAG_EC | EDAC_FLAG_SECDED) : EDAC_FLAG_NONE;
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = AMD76X_REVISION;
mci->ctl_name = amd76x_devs[dev_idx].ctl_name;
mci->edac_check = amd76x_check;
mci->ctl_page_to_phys = NULL;
amd76x_init_csrows(mci, pdev, ems_modes[ems_mode]);
amd76x_get_error_info(mci, &discard); /* clear counters */
/* Here we assume that we will never see multiple instances of this
@ -270,9 +273,8 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
return 0;
fail:
if (mci != NULL)
edac_mc_free(mci);
return rc;
edac_mc_free(mci);
return -ENODEV;
}
/* returns count (>= 0), or negative on error */

332
drivers/edac/e752x_edac.c
Просмотреть файл

@ -765,105 +765,38 @@ static void e752x_check(struct mem_ctl_info *mci)
e752x_process_error_info(mci, &info, 1);
}
static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
/* Return 1 if dual channel mode is active. Else return 0. */
static inline int dual_channel_active(u16 ddrcsr)
{
int rc = -ENODEV;
int index;
u16 pci_data;
u8 stat8;
struct mem_ctl_info *mci = NULL;
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 */
u32 dra;
return (((ddrcsr >> 12) & 3) == 3);
}
static void e752x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
u16 ddrcsr)
{
struct csrow_info *csrow;
unsigned long last_cumul_size;
struct pci_dev *dev = NULL;
struct e752x_error_info discard;
int index, mem_dev, drc_chan;
int drc_drbg; /* DRB granularity 0=64mb, 1=128mb */
int drc_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */
u8 value;
u32 dra, drc, cumul_size;
debugf0("%s(): mci\n", __func__);
debugf0("Starting Probe1\n");
/* check to see if device 0 function 1 is enabled; if it isn't, we
* assume the BIOS has reserved it for a reason and is expecting
* exclusive access, we take care not to violate that assumption and
* fail the probe. */
pci_read_config_byte(pdev, E752X_DEVPRES1, &stat8);
if (!force_function_unhide && !(stat8 & (1 << 5))) {
printk(KERN_INFO "Contact your BIOS vendor to see if the "
"E752x error registers can be safely un-hidden\n");
goto fail;
}
stat8 |= (1 << 5);
pci_write_config_byte(pdev, E752X_DEVPRES1, stat8);
/* need to find out the number of channels */
pci_read_config_dword(pdev, E752X_DRA, &dra);
pci_read_config_dword(pdev, E752X_DRC, &drc);
pci_read_config_word(pdev, E752X_DDRCSR, &ddrcsr);
/* FIXME: should check >>12 or 0xf, true for all? */
/* Dual channel = 1, Single channel = 0 */
drc_chan = (((ddrcsr >> 12) & 3) == 3);
drc_drbg = drc_chan + 1; /* 128 in dual mode, 64 in single */
drc_chan = dual_channel_active(ddrcsr);
drc_drbg = drc_chan + 1; /* 128 in dual mode, 64 in single */
drc_ddim = (drc >> 20) & 0x3;
mci = edac_mc_alloc(sizeof(*pvt), E752X_NR_CSROWS, drc_chan + 1);
if (mci == NULL) {
rc = -ENOMEM;
goto fail;
}
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;
/* FIXME - what if different memory types are in different csrows? */
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = E752X_REVISION;
mci->dev = &pdev->dev;
debugf3("%s(): init pvt\n", __func__);
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);
if (pvt->bridge_ck == NULL)
pvt->bridge_ck = pci_scan_single_device(pdev->bus,
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);
goto fail;
}
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;
mci->ctl_page_to_phys = ctl_page_to_phys;
/* find out the device types */
pci_read_config_dword(pdev, E752X_DRA, &dra);
/*
* The dram row boundary (DRB) reg values are boundary address for
/* The dram row boundary (DRB) reg values are boundary address for
* each DRAM row with a granularity of 64 or 128MB (single/dual
* channel operation). DRB regs are cumulative; therefore DRB7 will
* contain the total memory contained in all eight rows.
*/
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];
mem_dev = (dra >> (index * 4 + 2)) & 0x3;
csrow = &mci->csrows[index];
mem_dev = (mem_dev == 2);
pci_read_config_byte(pdev, E752X_DRB + index, &value);
@ -871,16 +804,15 @@ 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;
/*
@ -898,46 +830,168 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
} else
csrow->edac_mode = EDAC_NONE;
}
}
/* Fill in the memory map table */
{
u8 value;
u8 last = 0;
u8 row = 0;
static void e752x_init_mem_map_table(struct pci_dev *pdev,
struct e752x_pvt *pvt)
{
int index;
u8 value, last, row, stat8;
for (index = 0; index < 8; index += 2) {
pci_read_config_byte(pdev, E752X_DRB + index, &value);
last = 0;
row = 0;
/* 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 */
pvt->map[index] = row;
row++;
last = value;
/* test the next value to see if the dimm is
double sided */
pci_read_config_byte(pdev,
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 #
*/
row++;
last = value;
}
for (index = 0; index < 8; index += 2) {
pci_read_config_byte(pdev, E752X_DRB + index, &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 */
pvt->map[index] = row;
row++;
last = value;
/* test the next value to see if the dimm is double
* sided
*/
pci_read_config_byte(pdev, 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 # */
row++;
last = value;
}
}
/* set the map type. 1 = normal, 0 = reversed */
pci_read_config_byte(pdev, E752X_DRM, &stat8);
pvt->map_type = ((stat8 & 0x0f) > ((stat8 >> 4) & 0x0f));
}
/* Return 0 on success or 1 on failure. */
static int e752x_get_devs(struct pci_dev *pdev, int dev_idx,
struct e752x_pvt *pvt)
{
struct pci_dev *dev;
pvt->bridge_ck = pci_get_device(PCI_VENDOR_ID_INTEL,
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));
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);
return 1;
}
dev = pci_get_device(PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].ctl_dev,
NULL);
if (dev == NULL)
goto fail;
pvt->dev_d0f0 = dev;
pvt->dev_d0f1 = pci_dev_get(pvt->bridge_ck);
return 0;
fail:
pci_dev_put(pvt->bridge_ck);
return 1;
}
static void e752x_init_error_reporting_regs(struct e752x_pvt *pvt)
{
struct pci_dev *dev;
dev = pvt->dev_d0f1;
/* Turn off error disable & SMI in case the BIOS turned it on */
pci_write_config_byte(dev, E752X_HI_ERRMASK, 0x00);
pci_write_config_byte(dev, E752X_HI_SMICMD, 0x00);
pci_write_config_word(dev, E752X_SYSBUS_ERRMASK, 0x00);
pci_write_config_word(dev, E752X_SYSBUS_SMICMD, 0x00);
pci_write_config_byte(dev, E752X_BUF_ERRMASK, 0x00);
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);
}
static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
{
u16 pci_data;
u8 stat8;
struct mem_ctl_info *mci;
struct e752x_pvt *pvt;
u16 ddrcsr;
int drc_chan; /* Number of channels 0=1chan,1=2chan */
struct e752x_error_info discard;
debugf0("%s(): mci\n", __func__);
debugf0("Starting Probe1\n");
/* check to see if device 0 function 1 is enabled; if it isn't, we
* assume the BIOS has reserved it for a reason and is expecting
* exclusive access, we take care not to violate that assumption and
* fail the probe. */
pci_read_config_byte(pdev, E752X_DEVPRES1, &stat8);
if (!force_function_unhide && !(stat8 & (1 << 5))) {
printk(KERN_INFO "Contact your BIOS vendor to see if the "
"E752x error registers can be safely un-hidden\n");
return -ENOMEM;
}
stat8 |= (1 << 5);
pci_write_config_byte(pdev, E752X_DEVPRES1, stat8);
pci_read_config_word(pdev, E752X_DDRCSR, &ddrcsr);
/* FIXME: should check >>12 or 0xf, true for all? */
/* Dual channel = 1, Single channel = 0 */
drc_chan = dual_channel_active(ddrcsr);
mci = edac_mc_alloc(sizeof(*pvt), E752X_NR_CSROWS, drc_chan + 1);
if (mci == NULL) {
return -ENOMEM;
}
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;
/* FIXME - what if different memory types are in different csrows? */
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = E752X_REVISION;
mci->dev = &pdev->dev;
debugf3("%s(): init pvt\n", __func__);
pvt = (struct e752x_pvt *) mci->pvt_info;
pvt->dev_info = &e752x_devs[dev_idx];
pvt->mc_symmetric = ((ddrcsr & 0x10) != 0);
if (e752x_get_devs(pdev, dev_idx, pvt)) {
edac_mc_free(mci);
return -ENODEV;
}
debugf3("%s(): more mci init\n", __func__);
mci->ctl_name = pvt->dev_info->ctl_name;
mci->edac_check = e752x_check;
mci->ctl_page_to_phys = ctl_page_to_phys;
e752x_init_csrows(mci, pdev, ddrcsr);
e752x_init_mem_map_table(pdev, pvt);
/* set the map type. 1 = normal, 0 = reversed */
pci_read_config_byte(pdev, E752X_DRM, &stat8);
pvt->map_type = ((stat8 & 0x0f) > ((stat8 >> 4) & 0x0f));
mci->edac_cap |= EDAC_FLAG_NONE;
debugf3("%s(): tolm, remapbase, remaplimit\n", __func__);
@ -961,21 +1015,7 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
goto fail;
}
dev = pci_get_device(PCI_VENDOR_ID_INTEL, e752x_devs[dev_idx].ctl_dev,
NULL);
pvt->dev_d0f0 = dev;
/* find the error reporting device and clear errors */
dev = pvt->dev_d0f1 = pci_dev_get(pvt->bridge_ck);
/* Turn off error disable & SMI in case the BIOS turned it on */
pci_write_config_byte(dev, E752X_HI_ERRMASK, 0x00);
pci_write_config_byte(dev, E752X_HI_SMICMD, 0x00);
pci_write_config_word(dev, E752X_SYSBUS_ERRMASK, 0x00);
pci_write_config_word(dev, E752X_SYSBUS_SMICMD, 0x00);
pci_write_config_byte(dev, E752X_BUF_ERRMASK, 0x00);
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);
e752x_init_error_reporting_regs(pvt);
e752x_get_error_info(mci, &discard); /* clear other MCH errors */
/* get this far and it's successful */
@ -983,20 +1023,12 @@ static int e752x_probe1(struct pci_dev *pdev, int dev_idx)
return 0;
fail:
if (mci) {
if (pvt->dev_d0f0)
pci_dev_put(pvt->dev_d0f0);
pci_dev_put(pvt->dev_d0f0);
pci_dev_put(pvt->dev_d0f1);
pci_dev_put(pvt->bridge_ck);
edac_mc_free(mci);
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;
return -ENODEV;
}
/* returns count (>= 0), or negative on error */

158
drivers/edac/e7xxx_edac.c
Просмотреть файл

@ -335,99 +335,61 @@ 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)
/* Return 1 if dual channel mode is active. Else return 0. */
static inline int dual_channel_active(u32 drc, int dev_idx)
{
int rc = -ENODEV;
int index;
u16 pci_data;
struct mem_ctl_info *mci = NULL;
struct e7xxx_pvt *pvt = NULL;
u32 drc;
int drc_chan = 1; /* Number of channels 0=1chan,1=2chan */
int drc_drbg = 1; /* DRB granularity 0=32mb,1=64mb */
int drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */
u32 dra;
unsigned long last_cumul_size;
struct e7xxx_error_info discard;
return (dev_idx == E7501) ? ((drc >> 22) & 0x1) : 1;
}
debugf0("%s(): mci\n", __func__);
/* need to find out the number of channels */
pci_read_config_dword(pdev, E7XXX_DRC, &drc);
/* Return DRB granularity (0=32mb, 1=64mb). */
static inline int drb_granularity(u32 drc, int dev_idx)
{
/* only e7501 can be single channel */
if (dev_idx == E7501) {
drc_chan = ((drc >> 22) & 0x1);
drc_drbg = (drc >> 18) & 0x3;
}
return (dev_idx == E7501) ? ((drc >> 18) & 0x3) : 1;
}
drc_ddim = (drc >> 20) & 0x3;
mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1);
if (mci == NULL) {
rc = -ENOMEM;
goto fail;
}
static void e7xxx_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
int dev_idx, u32 drc)
{
unsigned long last_cumul_size;
int index;
u8 value;
u32 dra, cumul_size;
int drc_chan, drc_drbg, drc_ddim, mem_dev;
struct csrow_info *csrow;
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;
/* FIXME - what if different memory types are in different csrows? */
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = E7XXX_REVISION;
mci->dev = &pdev->dev;
debugf3("%s(): init pvt\n", __func__);
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);
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);
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;
/* find out the device types */
pci_read_config_dword(pdev, E7XXX_DRA, &dra);
drc_chan = dual_channel_active(drc, dev_idx);
drc_drbg = drb_granularity(drc, dev_idx);
drc_ddim = (drc >> 20) & 0x3;
last_cumul_size = 0;
/*
* The dram row boundary (DRB) reg values are boundary address
/* The dram row boundary (DRB) reg values are boundary address
* for each DRAM row with a granularity of 32 or 64MB (single/dual
* channel operation). DRB regs are cumulative; therefore DRB7 will
* contain the total memory contained in all eight rows.
*/
for (last_cumul_size = index = 0; index < mci->nr_csrows; index++) {
u8 value;
u32 cumul_size;
for (index = 0; index < mci->nr_csrows; index++) {
/* mem_dev 0=x8, 1=x4 */
int mem_dev = (dra >> (index * 4 + 3)) & 0x1;
struct csrow_info *csrow = &mci->csrows[index];
mem_dev = (dra >> (index * 4 + 3)) & 0x1;
csrow = &mci->csrows[index];
pci_read_config_byte(pdev, E7XXX_DRB + index, &value);
/* convert a 64 or 32 MiB DRB to a page size. */
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;
/*
@ -445,9 +407,54 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
} else
csrow->edac_mode = EDAC_NONE;
}
}
static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
{
u16 pci_data;
struct mem_ctl_info *mci = NULL;
struct e7xxx_pvt *pvt = NULL;
u32 drc;
int drc_chan;
struct e7xxx_error_info discard;
debugf0("%s(): mci\n", __func__);
pci_read_config_dword(pdev, E7XXX_DRC, &drc);
drc_chan = dual_channel_active(drc, dev_idx);
mci = edac_mc_alloc(sizeof(*pvt), E7XXX_NR_CSROWS, drc_chan + 1);
if (mci == NULL)
return -ENOMEM;
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;
/* FIXME - what if different memory types are in different csrows? */
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = E7XXX_REVISION;
mci->dev = &pdev->dev;
debugf3("%s(): init pvt\n", __func__);
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);
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);
goto fail0;
}
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;
e7xxx_init_csrows(mci, pdev, dev_idx, drc);
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(pdev, E7XXX_TOLM, &pci_data);
@ -468,21 +475,20 @@ static int e7xxx_probe1(struct pci_dev *pdev, int dev_idx)
*/
if (edac_mc_add_mc(mci,0)) {
debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
goto fail;
goto fail1;
}
/* get this far and it's successful */
debugf3("%s(): success\n", __func__);
return 0;
fail:
if (mci != NULL) {
if(pvt != NULL && pvt->bridge_ck)
pci_dev_put(pvt->bridge_ck);
edac_mc_free(mci);
}
fail1:
pci_dev_put(pvt->bridge_ck);
return rc;
fail0:
edac_mc_free(mci);
return -ENODEV;
}
/* returns count (>= 0), or negative on error */

102
drivers/edac/i82860_edac.c
Просмотреть файл

@ -133,16 +133,51 @@ static void i82860_check(struct mem_ctl_info *mci)
i82860_process_error_info(mci, &info, 1);
}
static void i82860_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev)
{
unsigned long last_cumul_size;
u16 mchcfg_ddim; /* DRAM Data Integrity Mode 0=none, 2=edac */
u16 value;
u32 cumul_size;
struct csrow_info *csrow;
int index;
pci_read_config_word(pdev, I82860_MCHCFG, &mchcfg_ddim);
mchcfg_ddim = mchcfg_ddim & 0x180;
last_cumul_size = 0;
/* The group row boundary (GRA) reg values are boundary address
* for each DRAM row with a granularity of 16MB. GRA regs are
* cumulative; therefore GRA15 will contain the total memory contained
* in all eight rows.
*/
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
pci_read_config_word(pdev, I82860_GBA + index * 2, &value);
cumul_size = (value & I82860_GBA_MASK) <<
(I82860_GBA_SHIFT - PAGE_SHIFT);
debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
cumul_size);
if (cumul_size == last_cumul_size)
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; /* I82860_EAP has 4KiB reolution */
csrow->mtype = MEM_RMBS;
csrow->dtype = DEV_UNKNOWN;
csrow->edac_mode = mchcfg_ddim ? EDAC_SECDED : EDAC_NONE;
}
}
static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc = -ENODEV;
int index;
struct mem_ctl_info *mci = NULL;
unsigned long last_cumul_size;
struct mem_ctl_info *mci;
struct i82860_error_info discard;
u16 mchcfg_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */
/* RDRAM has channels but these don't map onto the abstractions that
edac uses.
The device groups from the GRA registers seem to map reasonably
@ -159,53 +194,15 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
debugf3("%s(): init mci\n", __func__);
mci->dev = &pdev->dev;
mci->mtype_cap = MEM_FLAG_DDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
/* I"m not sure about this but I think that all RDRAM is SECDED */
mci->edac_cap = EDAC_FLAG_SECDED;
/* adjust FLAGS */
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = I82860_REVISION;
mci->ctl_name = i82860_devs[dev_idx].ctl_name;
mci->edac_check = i82860_check;
mci->ctl_page_to_phys = NULL;
pci_read_config_word(pdev, I82860_MCHCFG, &mchcfg_ddim);
mchcfg_ddim = mchcfg_ddim & 0x180;
/*
* The group row boundary (GRA) reg values are boundary address
* for each DRAM row with a granularity of 16MB. GRA regs are
* cumulative; therefore GRA15 will contain the total memory contained
* in all eight rows.
*/
for (last_cumul_size = index = 0; index < mci->nr_csrows; index++) {
u16 value;
u32 cumul_size;
struct csrow_info *csrow = &mci->csrows[index];
pci_read_config_word(pdev, I82860_GBA + index * 2,
&value);
cumul_size = (value & I82860_GBA_MASK) <<
(I82860_GBA_SHIFT - PAGE_SHIFT);
debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
cumul_size);
if (cumul_size == last_cumul_size)
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; /* I82860_EAP has 4KiB reolution */
csrow->mtype = MEM_RMBS;
csrow->dtype = DEV_UNKNOWN;
csrow->edac_mode = mchcfg_ddim ? EDAC_SECDED : EDAC_NONE;
}
i82860_init_csrows(mci, pdev);
i82860_get_error_info(mci, &discard); /* clear counters */
/* Here we assume that we will never see multiple instances of this
@ -213,14 +210,17 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
*/
if (edac_mc_add_mc(mci,0)) {
debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
edac_mc_free(mci);
} else {
/* get this far and it's successful */
debugf3("%s(): success\n", __func__);
rc = 0;
goto fail;
}
return rc;
/* get this far and it's successful */
debugf3("%s(): success\n", __func__);
return 0;
fail:
edac_mc_free(mci);
return -ENODEV;
}
/* returns count (>= 0), or negative on error */

194
drivers/edac/i82875p_edac.c
Просмотреть файл

@ -265,81 +265,147 @@ static void i82875p_check(struct mem_ctl_info *mci)
extern int pci_proc_attach_device(struct pci_dev *);
#endif
static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
/* Return 0 on success or 1 on failure. */
static int i82875p_setup_overfl_dev(struct pci_dev *pdev,
struct pci_dev **ovrfl_pdev, void __iomem **ovrfl_window)
{
int rc = -ENODEV;
int index;
struct mem_ctl_info *mci = NULL;
struct i82875p_pvt *pvt = NULL;
unsigned long last_cumul_size;
struct pci_dev *ovrfl_pdev;
void __iomem *ovrfl_window = NULL;
u32 drc;
u32 drc_chan; /* Number of channels 0=1chan,1=2chan */
u32 nr_chans;
u32 drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */
struct i82875p_error_info discard;
struct pci_dev *dev;
void __iomem *window;
debugf0("%s()\n", __func__);
ovrfl_pdev = pci_get_device(PCI_VEND_DEV(INTEL, 82875_6), NULL);
*ovrfl_pdev = NULL;
*ovrfl_window = NULL;
dev = pci_get_device(PCI_VEND_DEV(INTEL, 82875_6), NULL);
if (!ovrfl_pdev) {
/*
* Intel tells BIOS developers to hide device 6 which
if (dev == NULL) {
/* Intel tells BIOS developers to hide device 6 which
* configures the overflow device access containing
* the DRBs - this is where we expose device 6.
* http://www.x86-secret.com/articles/tweak/pat/patsecrets-2.htm
*/
pci_write_bits8(pdev, 0xf4, 0x2, 0x2);
ovrfl_pdev =
pci_scan_single_device(pdev->bus, PCI_DEVFN(6, 0));
dev = pci_scan_single_device(pdev->bus, PCI_DEVFN(6, 0));
if (!ovrfl_pdev)
return -ENODEV;
if (dev == NULL)
return 1;
}
*ovrfl_pdev = dev;
#ifdef CONFIG_PROC_FS
if (!ovrfl_pdev->procent && pci_proc_attach_device(ovrfl_pdev)) {
i82875p_printk(KERN_ERR,
"%s(): Failed to attach overflow device\n", __func__);
return -ENODEV;
if ((dev->procent == NULL) && pci_proc_attach_device(dev)) {
i82875p_printk(KERN_ERR, "%s(): Failed to attach overflow "
"device\n", __func__);
return 1;
}
#endif
/* CONFIG_PROC_FS */
if (pci_enable_device(ovrfl_pdev)) {
i82875p_printk(KERN_ERR,
"%s(): Failed to enable overflow device\n", __func__);
return -ENODEV;
#endif /* CONFIG_PROC_FS */
if (pci_enable_device(dev)) {
i82875p_printk(KERN_ERR, "%s(): Failed to enable overflow "
"device\n", __func__);
return 1;
}
if (pci_request_regions(ovrfl_pdev, pci_name(ovrfl_pdev))) {
if (pci_request_regions(dev, pci_name(dev))) {
#ifdef CORRECT_BIOS
goto fail0;
#endif
}
/* cache is irrelevant for PCI bus reads/writes */
ovrfl_window = ioremap_nocache(pci_resource_start(ovrfl_pdev, 0),
pci_resource_len(ovrfl_pdev, 0));
window = ioremap_nocache(pci_resource_start(dev, 0),
pci_resource_len(dev, 0));
if (!ovrfl_window) {
if (window == NULL) {
i82875p_printk(KERN_ERR, "%s(): Failed to ioremap bar6\n",
__func__);
__func__);
goto fail1;
}
/* need to find out the number of channels */
drc = readl(ovrfl_window + I82875P_DRC);
drc_chan = ((drc >> 21) & 0x1);
nr_chans = drc_chan + 1;
*ovrfl_window = window;
return 0;
fail1:
pci_release_regions(dev);
#ifdef CORRECT_BIOS
fail0:
pci_disable_device(dev);
#endif
/* NOTE: the ovrfl proc entry and pci_dev are intentionally left */
return 1;
}
/* Return 1 if dual channel mode is active. Else return 0. */
static inline int dual_channel_active(u32 drc)
{
return (drc >> 21) & 0x1;
}
static void i82875p_init_csrows(struct mem_ctl_info *mci,
struct pci_dev *pdev, void __iomem *ovrfl_window, u32 drc)
{
struct csrow_info *csrow;
unsigned long last_cumul_size;
u8 value;
u32 drc_ddim; /* DRAM Data Integrity Mode 0=none,2=edac */
u32 cumul_size;
int index;
drc_ddim = (drc >> 18) & 0x1;
last_cumul_size = 0;
/* The dram row boundary (DRB) reg values are boundary address
* for each DRAM row with a granularity of 32 or 64MB (single/dual
* channel operation). DRB regs are cumulative; therefore DRB7 will
* contain the total memory contained in all eight rows.
*/
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
value = readb(ovrfl_window + I82875P_DRB + index);
cumul_size = value << (I82875P_DRB_SHIFT - PAGE_SHIFT);
debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
cumul_size);
if (cumul_size == last_cumul_size)
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; /* I82875P_EAP has 4KiB reolution */
csrow->mtype = MEM_DDR;
csrow->dtype = DEV_UNKNOWN;
csrow->edac_mode = drc_ddim ? EDAC_SECDED : EDAC_NONE;
}
}
static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc = -ENODEV;
struct mem_ctl_info *mci;
struct i82875p_pvt *pvt;
struct pci_dev *ovrfl_pdev;
void __iomem *ovrfl_window;
u32 drc;
u32 nr_chans;
struct i82875p_error_info discard;
debugf0("%s()\n", __func__);
ovrfl_pdev = pci_get_device(PCI_VEND_DEV(INTEL, 82875_6), NULL);
if (i82875p_setup_overfl_dev(pdev, &ovrfl_pdev, &ovrfl_window))
return -ENODEV;
drc = readl(ovrfl_window + I82875P_DRC);
nr_chans = dual_channel_active(drc) + 1;
mci = edac_mc_alloc(sizeof(*pvt), I82875P_NR_CSROWS(nr_chans),
nr_chans);
if (!mci) {
rc = -ENOMEM;
goto fail2;
goto fail0;
}
debugf3("%s(): init mci\n", __func__);
@ -347,8 +413,6 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
mci->mtype_cap = MEM_FLAG_DDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
mci->edac_cap = EDAC_FLAG_UNKNOWN;
/* adjust FLAGS */
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = I82875P_REVISION;
mci->ctl_name = i82875p_devs[dev_idx].ctl_name;
@ -358,36 +422,7 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
pvt = (struct i82875p_pvt *) mci->pvt_info;
pvt->ovrfl_pdev = ovrfl_pdev;
pvt->ovrfl_window = ovrfl_window;
/*
* The dram row boundary (DRB) reg values are boundary address
* for each DRAM row with a granularity of 32 or 64MB (single/dual
* channel operation). DRB regs are cumulative; therefore DRB7 will
* contain the total memory contained in all eight rows.
*/
for (last_cumul_size = index = 0; index < mci->nr_csrows; index++) {
u8 value;
u32 cumul_size;
struct csrow_info *csrow = &mci->csrows[index];
value = readb(ovrfl_window + I82875P_DRB + index);
cumul_size = value << (I82875P_DRB_SHIFT - PAGE_SHIFT);
debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
cumul_size);
if (cumul_size == last_cumul_size)
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; /* I82875P_EAP has 4KiB reolution */
csrow->mtype = MEM_DDR;
csrow->dtype = DEV_UNKNOWN;
csrow->edac_mode = drc_ddim ? EDAC_SECDED : EDAC_NONE;
}
i82875p_init_csrows(mci, pdev, ovrfl_window, drc);
i82875p_get_error_info(mci, &discard); /* clear counters */
/* Here we assume that we will never see multiple instances of this
@ -395,25 +430,20 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
*/
if (edac_mc_add_mc(mci,0)) {
debugf3("%s(): failed edac_mc_add_mc()\n", __func__);
goto fail3;
goto fail1;
}
/* get this far and it's successful */
debugf3("%s(): success\n", __func__);
return 0;
fail3:
fail1:
edac_mc_free(mci);
fail2:
fail0:
iounmap(ovrfl_window);
fail1:
pci_release_regions(ovrfl_pdev);
#ifdef CORRECT_BIOS
fail0:
#endif
pci_disable_device(ovrfl_pdev);
/* NOTE: the ovrfl proc entry and pci_dev are intentionally left */
return rc;

118
drivers/edac/r82600_edac.c
Просмотреть файл

@ -205,25 +205,72 @@ static void r82600_check(struct mem_ctl_info *mci)
r82600_process_error_info(mci, &info, 1);
}
static inline int ecc_enabled(u8 dramcr)
{
return dramcr & BIT(5);
}
static void r82600_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
u8 dramcr)
{
struct csrow_info *csrow;
int index;
u8 drbar; /* SDRAM Row Boundry Address Register */
u32 row_high_limit, row_high_limit_last;
u32 reg_sdram, ecc_on, row_base;
ecc_on = ecc_enabled(dramcr);
reg_sdram = dramcr & BIT(4);
row_high_limit_last = 0;
for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];
/* find the DRAM Chip Select Base address and mask */
pci_read_config_byte(pdev, R82600_DRBA + index, &drbar);
debugf1("%s() Row=%d DRBA = %#0x\n", __func__, index, drbar);
row_high_limit = ((u32) drbar << 24);
/* row_high_limit = ((u32)drbar << 24) | 0xffffffUL; */
debugf1("%s() Row=%d, Boundry Address=%#0x, Last = %#0x\n",
__func__, index, row_high_limit, row_high_limit_last);
/* Empty row [p.57] */
if (row_high_limit == row_high_limit_last)
continue;
row_base = row_high_limit_last;
csrow->first_page = row_base >> PAGE_SHIFT;
csrow->last_page = (row_high_limit >> PAGE_SHIFT) - 1;
csrow->nr_pages = csrow->last_page - csrow->first_page + 1;
/* Error address is top 19 bits - so granularity is *
* 14 bits */
csrow->grain = 1 << 14;
csrow->mtype = reg_sdram ? MEM_RDDR : MEM_DDR;
/* FIXME - check that this is unknowable with this chipset */
csrow->dtype = DEV_UNKNOWN;
/* Mode is global on 82600 */
csrow->edac_mode = ecc_on ? EDAC_SECDED : EDAC_NONE;
row_high_limit_last = row_high_limit;
}
}
static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc = -ENODEV;
int index;
struct mem_ctl_info *mci = NULL;
struct mem_ctl_info *mci;
u8 dramcr;
u32 ecc_on;
u32 reg_sdram;
u32 eapr;
u32 scrub_disabled;
u32 sdram_refresh_rate;
u32 row_high_limit_last = 0;
struct r82600_error_info discard;
debugf0("%s()\n", __func__);
pci_read_config_byte(pdev, R82600_DRAMC, &dramcr);
pci_read_config_dword(pdev, R82600_EAP, &eapr);
ecc_on = dramcr & BIT(5);
reg_sdram = dramcr & BIT(4);
scrub_disabled = eapr & BIT(31);
sdram_refresh_rate = dramcr & (BIT(0) | BIT(1));
debugf2("%s(): sdram refresh rate = %#0x\n", __func__,
@ -231,10 +278,8 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
debugf2("%s(): DRAMC register = %#0x\n", __func__, dramcr);
mci = edac_mc_alloc(0, R82600_NR_CSROWS, R82600_NR_CHANS);
if (mci == NULL) {
rc = -ENOMEM;
goto fail;
}
if (mci == NULL)
return -ENOMEM;
debugf0("%s(): mci = %p\n", __func__, mci);
mci->dev = &pdev->dev;
@ -250,7 +295,7 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
* is possible. */
mci->edac_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
if (ecc_on) {
if (ecc_enabled(dramcr)) {
if (scrub_disabled)
debugf3("%s(): mci = %p - Scrubbing disabled! EAP: "
"%#0x\n", __func__, mci, eapr);
@ -262,46 +307,7 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
mci->ctl_name = "R82600";
mci->edac_check = r82600_check;
mci->ctl_page_to_phys = NULL;
for (index = 0; index < mci->nr_csrows; index++) {
struct csrow_info *csrow = &mci->csrows[index];
u8 drbar; /* sDram Row Boundry Address Register */
u32 row_high_limit;
u32 row_base;
/* find the DRAM Chip Select Base address and mask */
pci_read_config_byte(pdev, R82600_DRBA + index, &drbar);
debugf1("MC%d: %s() Row=%d DRBA = %#0x\n", mci->mc_idx,
__func__, index, drbar);
row_high_limit = ((u32) drbar << 24);
/* row_high_limit = ((u32)drbar << 24) | 0xffffffUL; */
debugf1("MC%d: %s() Row=%d, Boundry Address=%#0x, Last = "
"%#0x \n", mci->mc_idx, __func__, index,
row_high_limit, row_high_limit_last);
/* Empty row [p.57] */
if (row_high_limit == row_high_limit_last)
continue;
row_base = row_high_limit_last;
csrow->first_page = row_base >> PAGE_SHIFT;
csrow->last_page = (row_high_limit >> PAGE_SHIFT) - 1;
csrow->nr_pages = csrow->last_page - csrow->first_page + 1;
/* Error address is top 19 bits - so granularity is *
* 14 bits */
csrow->grain = 1 << 14;
csrow->mtype = reg_sdram ? MEM_RDDR : MEM_DDR;
/* FIXME - check that this is unknowable with this chipset */
csrow->dtype = DEV_UNKNOWN;
/* Mode is global on 82600 */
csrow->edac_mode = ecc_on ? EDAC_SECDED : EDAC_NONE;
row_high_limit_last = row_high_limit;
}
r82600_init_csrows(mci, pdev, dramcr);
r82600_get_error_info(mci, &discard); /* clear counters */
/* Here we assume that we will never see multiple instances of this
@ -324,10 +330,8 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
return 0;
fail:
if (mci)
edac_mc_free(mci);
return rc;
edac_mc_free(mci);
return -ENODEV;
}
/* returns count (>= 0), or negative on error */