[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>
diff --git a/drivers/edac/amd76x_edac.c b/drivers/edac/amd76x_edac.c
index 303cb50..702141c 100644
--- a/drivers/edac/amd76x_edac.c
+++ b/drivers/edac/amd76x_edac.c
@@ -182,62 +182,20 @@
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 @@
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 @@
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 */
diff --git a/drivers/edac/e752x_edac.c b/drivers/edac/e752x_edac.c
index 5e773e3..5351a76 100644
--- a/drivers/edac/e752x_edac.c
+++ b/drivers/edac/e752x_edac.c
@@ -765,105 +765,38 @@
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 @@
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 @@
} 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 @@
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 @@
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 */
diff --git a/drivers/edac/e7xxx_edac.c b/drivers/edac/e7xxx_edac.c
index 1e282c8..9878379 100644
--- a/drivers/edac/e7xxx_edac.c
+++ b/drivers/edac/e7xxx_edac.c
@@ -335,99 +335,61 @@
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 @@
} 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 @@
*/
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 */
diff --git a/drivers/edac/i82860_edac.c b/drivers/edac/i82860_edac.c
index e2c3b8b..d196dcc 100644
--- a/drivers/edac/i82860_edac.c
+++ b/drivers/edac/i82860_edac.c
@@ -133,16 +133,51 @@
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 @@
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 @@
*/
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 */
diff --git a/drivers/edac/i82875p_edac.c b/drivers/edac/i82875p_edac.c
index 2be18ca..6787403 100644
--- a/drivers/edac/i82875p_edac.c
+++ b/drivers/edac/i82875p_edac.c
@@ -265,81 +265,147 @@
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 @@
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 @@
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 @@
*/
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;
diff --git a/drivers/edac/r82600_edac.c b/drivers/edac/r82600_edac.c
index eb3aa61..fecdb2c 100644
--- a/drivers/edac/r82600_edac.c
+++ b/drivers/edac/r82600_edac.c
@@ -205,25 +205,72 @@
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 @@
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 @@
* 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 @@
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 @@
return 0;
fail:
- if (mci)
- edac_mc_free(mci);
-
- return rc;
+ edac_mc_free(mci);
+ return -ENODEV;
}
/* returns count (>= 0), or negative on error */
