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authorMauro Carvalho Chehab <mchehab@redhat.com>2009-01-06 14:43:00 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 15:59:30 -0800
commit8375d4909aee4c18798f373ecf24a79f040f75fc (patch)
tree9062847d672228a6c1e1f9d5c9dd0d513d819d59 /drivers
parent920c8df6ac678fdb8c49a6ce2e47a98e62757d77 (diff)
downloadlinaro-lsk-8375d4909aee4c18798f373ecf24a79f040f75fc.tar.gz
edac: driver for i5400 MCH (update)
Signed-off-by: Ben Woodard <woodard@redhat.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com> Cc: Doug Thompson <norsk5@yahoo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/edac/i5400_edac.c119
1 files changed, 62 insertions, 57 deletions
diff --git a/drivers/edac/i5400_edac.c b/drivers/edac/i5400_edac.c
index 8ec3eca3061..b08b6d8e2dc 100644
--- a/drivers/edac/i5400_edac.c
+++ b/drivers/edac/i5400_edac.c
@@ -1,5 +1,5 @@
/*
- * Intel 5400 class Memory Controllers kernel module
+ * Intel 5400 class Memory Controllers kernel module (Seaburg)
*
* This file may be distributed under the terms of the
* GNU General Public License.
@@ -55,13 +55,11 @@
* Function 1: Memory Branch Map, Control, Errors Register
* Function 2: FSB Error Registers
*
- * All 3 functions of Device 16 (0,1,2) share the SAME DID
+ * All 3 functions of Device 16 (0,1,2) share the SAME DID and
+ * uses PCI_DEVICE_ID_INTEL_5400_ERR for device 16 (0,1,2),
+ * PCI_DEVICE_ID_INTEL_5400_FBD0 and PCI_DEVICE_ID_INTEL_5400_FBD1
+ * for device 21 (0,1).
*/
-#ifndef PCI_DEVICE_ID_INTEL_5400_ERR
-#define PCI_DEVICE_ID_INTEL_5400_ERR 0x4030 /* Device 16 (0,1,2) */
-#define PCI_DEVICE_ID_INTEL_5400_FBD0 0x4035 /* Device 21 (0,1) */
-#define PCI_DEVICE_ID_INTEL_5400_FBD1 0x4036 /* Device 21 (0,1) */
-#endif
/* OFFSETS for Function 0 */
#define AMBASE 0x48 /* AMB Mem Mapped Reg Region Base */
@@ -174,17 +172,17 @@ enum error_mask {
/*
* Names to translate bit error into something useful
*/
-char *error_name[] = {
+static const char *error_name[] = {
[0] = "Memory Write error on non-redundant retry",
[1] = "Memory or FB-DIMM configuration CRC read error",
/* Reserved */
[3] = "Uncorrectable Data ECC on Replay",
[4] = "Aliased Uncorrectable Non-Mirrored Demand Data ECC",
- /* Unsupported on i5400 */
+ /* M6 Unsupported on i5400 */
[6] = "Aliased Uncorrectable Resilver- or Spare-Copy Data ECC",
[7] = "Aliased Uncorrectable Patrol Data ECC",
[8] = "Non-Aliased Uncorrectable Non-Mirrored Demand Data ECC",
- /* Unsupported */
+ /* M10 Unsupported on i5400 */
[10] = "Non-Aliased Uncorrectable Resilver- or Spare-Copy Data ECC",
[11] = "Non-Aliased Uncorrectable Patrol Data ECC",
[12] = "Memory Write error on first attempt",
@@ -192,7 +190,7 @@ char *error_name[] = {
[14] = "Memory or FB-DIMM configuration CRC read error",
[15] = "Channel Failed-Over Occurred",
[16] = "Correctable Non-Mirrored Demand Data ECC",
- /* Unsupported */
+ /* M18 Unsupported on i5400 */
[18] = "Correctable Resilver- or Spare-Copy Data ECC",
[19] = "Correctable Patrol Data ECC",
[20] = "FB-DIMM Northbound parity error on FB-DIMM Sync Status",
@@ -259,24 +257,32 @@ char *error_name[] = {
#define FERR_FAT_MASK ERROR_FAT_MASK
/* masks for non-fatal error register */
-#define TO_NF_MASK(a) (((a) & EMASK_M29) | ((a) >> 3))
-#define FROM_NF_FERR(a) (((a) & EMASK_M29) | (((a) << 3) & ((1 << 30)-1)))
+static inline int to_nf_mask(unsigned int mask)
+{
+ return (mask & EMASK_M29) | (mask >> 3);
+};
+
+static inline int from_nf_ferr(unsigned int mask)
+{
+ return (mask & EMASK_M29) | /* Bit 28 */
+ (mask & ((1 << 28) - 1) << 3); /* Bits 0 to 27 */
+};
-#define FERR_NF_MASK TO_NF_MASK(ERROR_NF_MASK)
-#define FERR_NF_CORRECTABLE TO_NF_MASK(ERROR_NF_CORRECTABLE)
-#define FERR_NF_DIMM_SPARE TO_NF_MASK(ERROR_NF_DIMM_SPARE)
-#define FERR_NF_SPD_PROTOCOL TO_NF_MASK(ERROR_NF_SPD_PROTOCOL)
-#define FERR_NF_NORTH_CRC TO_NF_MASK(ERROR_NF_NORTH_CRC)
-#define FERR_NF_RECOVERABLE TO_NF_MASK(ERROR_NF_RECOVERABLE)
-#define FERR_NF_UNCORRECTABLE TO_NF_MASK(ERROR_NF_UNCORRECTABLE)
+#define FERR_NF_MASK to_nf_mask(ERROR_NF_MASK)
+#define FERR_NF_CORRECTABLE to_nf_mask(ERROR_NF_CORRECTABLE)
+#define FERR_NF_DIMM_SPARE to_nf_mask(ERROR_NF_DIMM_SPARE)
+#define FERR_NF_SPD_PROTOCOL to_nf_mask(ERROR_NF_SPD_PROTOCOL)
+#define FERR_NF_NORTH_CRC to_nf_mask(ERROR_NF_NORTH_CRC)
+#define FERR_NF_RECOVERABLE to_nf_mask(ERROR_NF_RECOVERABLE)
+#define FERR_NF_UNCORRECTABLE to_nf_mask(ERROR_NF_UNCORRECTABLE)
/* Defines to extract the vaious fields from the
* MTRx - Memory Technology Registers
*/
#define MTR_DIMMS_PRESENT(mtr) ((mtr) & (1 << 10))
#define MTR_DIMMS_ETHROTTLE(mtr) ((mtr) & (1 << 9))
-#define MTR_DRAM_WIDTH(mtr) (((mtr) & (1<< 8)) ? 8 : 4)
-#define MTR_DRAM_BANKS(mtr) (((mtr) & (1<< 6)) ? 8 : 4)
+#define MTR_DRAM_WIDTH(mtr) (((mtr) & (1 << 8)) ? 8 : 4)
+#define MTR_DRAM_BANKS(mtr) (((mtr) & (1 << 6)) ? 8 : 4)
#define MTR_DRAM_BANKS_ADDR_BITS(mtr) ((MTR_DRAM_BANKS(mtr) == 8) ? 3 : 2)
#define MTR_DIMM_RANK(mtr) (((mtr) >> 5) & 0x1)
#define MTR_DIMM_RANK_ADDR_BITS(mtr) (MTR_DIMM_RANK(mtr) ? 2 : 1)
@@ -293,7 +299,7 @@ static inline int extract_fbdchan_indx(u32 x)
#ifdef CONFIG_EDAC_DEBUG
/* MTR NUMROW */
-static char *numrow_toString[] = {
+static const char *numrow_toString[] = {
"8,192 - 13 rows",
"16,384 - 14 rows",
"32,768 - 15 rows",
@@ -301,7 +307,7 @@ static char *numrow_toString[] = {
};
/* MTR NUMCOL */
-static char *numcol_toString[] = {
+static const char *numcol_toString[] = {
"1,024 - 10 columns",
"2,048 - 11 columns",
"4,096 - 12 columns",
@@ -341,11 +347,11 @@ struct i5400_pvt {
u16 mir0, mir1;
- u16 b0_mtr[NUM_MTRS_PER_BRANCH]; /* Memory Technlogy Reg */
+ u16 b0_mtr[NUM_MTRS_PER_BRANCH]; /* Memory Technlogy Reg */
u16 b0_ambpresent0; /* Branch 0, Channel 0 */
u16 b0_ambpresent1; /* Brnach 0, Channel 1 */
- u16 b1_mtr[NUM_MTRS_PER_BRANCH]; /* Memory Technlogy Reg */
+ u16 b1_mtr[NUM_MTRS_PER_BRANCH]; /* Memory Technlogy Reg */
u16 b1_ambpresent0; /* Branch 1, Channel 8 */
u16 b1_ambpresent1; /* Branch 1, Channel 1 */
@@ -370,7 +376,7 @@ struct i5400_error_info {
u16 recmema; /* Recoverable Mem Error log A */
u32 recmemb; /* Recoverable Mem Error log B */
- /* These registers are input ONLY if there was a Non-Recoverable Error */
+ /* These registers are input ONLY if there was a Non-Rec Error */
u16 nrecmema; /* Non-Recoverable Mem log A */
u16 nrecmemb; /* Non-Recoverable Mem log B */
@@ -560,10 +566,10 @@ static void i5400_proccess_non_recoverable_info(struct mem_ctl_info *mci,
/* Form out message */
snprintf(msg, sizeof(msg),
- "%s (Branch=%d DRAM-Bank=%d Buffer ID = %d RDWR=%s RAS=%d CAS=%d "
- "%s Err=0x%lx (%s))",
- type, branch >> 1, bank, buf_id, rdwr_str(rdwr), ras, cas, type,
- allErrors, error_name[errnum]);
+ "%s (Branch=%d DRAM-Bank=%d Buffer ID = %d RDWR=%s "
+ "RAS=%d CAS=%d %s Err=0x%lx (%s))",
+ type, branch >> 1, bank, buf_id, rdwr_str(rdwr), ras, cas,
+ type, allErrors, error_name[errnum]);
/* Call the helper to output message */
edac_mc_handle_fbd_ue(mci, rank, channel, channel + 1, msg);
@@ -590,7 +596,7 @@ static void i5400_process_nonfatal_error_info(struct mem_ctl_info *mci,
int errnum;
/* mask off the Error bits that are possible */
- allErrors = FROM_NF_FERR(info->ferr_nf_fbd & FERR_NF_MASK);
+ allErrors = from_nf_ferr(info->ferr_nf_fbd & FERR_NF_MASK);
if (!allErrors)
return; /* if no error, return now */
@@ -631,10 +637,10 @@ static void i5400_process_nonfatal_error_info(struct mem_ctl_info *mci,
/* Form out message */
snprintf(msg, sizeof(msg),
- "Corrected error (Branch=%d DRAM-Bank=%d RDWR=%s RAS=%d "
- "CAS=%d, CE Err=0x%lx (%s))", branch >> 1, bank,
- rdwr_str(rdwr), ras, cas, allErrors,
- error_name[errnum]);
+ "Corrected error (Branch=%d DRAM-Bank=%d RDWR=%s "
+ "RAS=%d CAS=%d, CE Err=0x%lx (%s))",
+ branch >> 1, bank, rdwr_str(rdwr), ras, cas,
+ allErrors, error_name[errnum]);
/* Call the helper to output message */
edac_mc_handle_fbd_ce(mci, rank, channel, msg);
@@ -704,17 +710,10 @@ static void i5400_put_devices(struct mem_ctl_info *mci)
pvt = mci->pvt_info;
/* Decrement usage count for devices */
- if (pvt->branch_1)
- pci_dev_put(pvt->branch_1);
-
- if (pvt->branch_0)
- pci_dev_put(pvt->branch_0);
-
- if (pvt->fsb_error_regs)
- pci_dev_put(pvt->fsb_error_regs);
-
- if (pvt->branchmap_werrors)
- pci_dev_put(pvt->branchmap_werrors);
+ pci_dev_put(pvt->branch_1);
+ pci_dev_put(pvt->branch_0);
+ pci_dev_put(pvt->fsb_error_regs);
+ pci_dev_put(pvt->branchmap_werrors);
}
/*
@@ -810,9 +809,9 @@ error:
/*
* determine_amb_present
*
- * the information is contained in NUM_MTRS_PER_BRANCH different registers
- * determining which of the NUM_MTRS_PER_BRANCH requires knowing
- * which channel is in question
+ * the information is contained in NUM_MTRS_PER_BRANCH different
+ * registers determining which of the NUM_MTRS_PER_BRANCH requires
+ * knowing which channel is in question
*
* 2 branches, each with 2 channels
* b0_ambpresent0 for channel '0'
@@ -842,7 +841,7 @@ static int determine_amb_present_reg(struct i5400_pvt *pvt, int channel)
/*
* determine_mtr(pvt, csrow, channel)
*
- * return the proper MTR register as determine by the csrow and channel desired
+ * return the proper MTR register as determine by the csrow and desired channel
*/
static int determine_mtr(struct i5400_pvt *pvt, int csrow, int channel)
{
@@ -857,7 +856,8 @@ static int determine_mtr(struct i5400_pvt *pvt, int csrow, int channel)
n = csrow >> 3;
if (n >= NUM_MTRS_PER_BRANCH) {
- debugf0("ERROR: trying to access an invalid csrow: %d\n", csrow);
+ debugf0("ERROR: trying to access an invalid csrow: %d\n",
+ csrow);
return 0;
}
@@ -885,7 +885,7 @@ static void decode_mtr(int slot_row, u16 mtr)
debugf2("\t\tWIDTH: x%d\n", MTR_DRAM_WIDTH(mtr));
debugf2("\t\tELECTRICAL THROTTLING is %s\n",
- MTR_DIMMS_ETHROTTLE(mtr) ? "enabled": "disabled");
+ MTR_DIMMS_ETHROTTLE(mtr) ? "enabled" : "disabled");
debugf2("\t\tNUMBANK: %d bank(s)\n", MTR_DRAM_BANKS(mtr));
debugf2("\t\tNUMRANK: %s\n", MTR_DIMM_RANK(mtr) ? "double" : "single");
@@ -1251,6 +1251,9 @@ static int i5400_probe1(struct pci_dev *pdev, int dev_idx)
int num_dimms_per_channel;
int num_csrows;
+ if (dev_idx >= ARRAY_SIZE(i5400_devs))
+ return -EINVAL;
+
debugf0("MC: " __FILE__ ": %s(), pdev bus %u dev=0x%x fn=0x%x\n",
__func__,
pdev->bus->number,
@@ -1425,7 +1428,7 @@ MODULE_DEVICE_TABLE(pci, i5400_pci_tbl);
*
*/
static struct pci_driver i5400_driver = {
- .name = KBUILD_BASENAME,
+ .name = "i5400_edac",
.probe = i5400_init_one,
.remove = __devexit_p(i5400_remove_one),
.id_table = i5400_pci_tbl,
@@ -1463,9 +1466,11 @@ module_init(i5400_init);
module_exit(i5400_exit);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Ben Woodard <woodard@redhat.com> Red Hat Inc. (http://www.redhat.com)");
-MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com> Red Hat Inc. (http://www.redhat.com)");
-MODULE_DESCRIPTION("MC Driver for Intel I5400 memory controllers - " I5400_REVISION);
+MODULE_AUTHOR("Ben Woodard <woodard@redhat.com>");
+MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
+MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)");
+MODULE_DESCRIPTION("MC Driver for Intel I5400 memory controllers - "
+ I5400_REVISION);
module_param(edac_op_state, int, 0444);
MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");