#define EDAC_MOD_STR "i82443bxgx_edac"
-
/* The 82443BX supports SDRAM, or EDO (EDO for mobile only), "Memory
* Size: 8 MB to 512 MB (1GB with Registered DIMMs) with eight memory
* rows" "The 82443BX supports multiple-bit error detection and
#define I82443BXGX_NR_CHANS 1
#define I82443BXGX_NR_DIMMS 4
-
-
/* 82443 PCI Device 0 */
-#define I82443BXGX_NBXCFG 0x50 /* 32bit register starting at this PCI
- * config space offset */
-#define I82443BXGX_NBXCFG_OFFSET_NON_ECCROW 24 /* Array of bits, zero if
- * row is non-ECC */
-#define I82443BXGX_NBXCFG_OFFSET_DRAM_FREQ 12 /* 2 bits,00=100MHz,10=66 MHz */
-
-#define I82443BXGX_NBXCFG_OFFSET_DRAM_INTEGRITY 7 /* 2 bits: */
-#define I82443BXGX_NBXCFG_INTEGRITY_NONE 0x0 /* 00 = Non-ECC */
-#define I82443BXGX_NBXCFG_INTEGRITY_EC 0x1 /* 01 = EC (only) */
-#define I82443BXGX_NBXCFG_INTEGRITY_ECC 0x2 /* 10 = ECC */
-#define I82443BXGX_NBXCFG_INTEGRITY_SCRUB 0x3 /* 11 = ECC + HW Scrub */
+#define I82443BXGX_NBXCFG 0x50 /* 32bit register starting at this PCI
+ * config space offset */
+#define I82443BXGX_NBXCFG_OFFSET_NON_ECCROW 24 /* Array of bits, zero if
+ * row is non-ECC */
+#define I82443BXGX_NBXCFG_OFFSET_DRAM_FREQ 12 /* 2 bits,00=100MHz,10=66 MHz */
+
+#define I82443BXGX_NBXCFG_OFFSET_DRAM_INTEGRITY 7 /* 2 bits: */
+#define I82443BXGX_NBXCFG_INTEGRITY_NONE 0x0 /* 00 = Non-ECC */
+#define I82443BXGX_NBXCFG_INTEGRITY_EC 0x1 /* 01 = EC (only) */
+#define I82443BXGX_NBXCFG_INTEGRITY_ECC 0x2 /* 10 = ECC */
+#define I82443BXGX_NBXCFG_INTEGRITY_SCRUB 0x3 /* 11 = ECC + HW Scrub */
#define I82443BXGX_NBXCFG_OFFSET_ECC_DIAG_ENABLE 6
-
/* 82443 PCI Device 0 */
-#define I82443BXGX_EAP 0x80 /* 32bit register starting at this PCI
- * config space offset, Error Address
- * Pointer Register */
-#define I82443BXGX_EAP_OFFSET_EAP 12 /* High 20 bits of error address */
-#define I82443BXGX_EAP_OFFSET_MBE BIT(1) /* Err at EAP was multi-bit (W1TC) */
-#define I82443BXGX_EAP_OFFSET_SBE BIT(0) /* Err at EAP was single-bit (W1TC)*/
-
-#define I82443BXGX_ERRCMD 0x90 /* 8bit register starting at this PCI
+#define I82443BXGX_EAP 0x80 /* 32bit register starting at this PCI
+ * config space offset, Error Address
+ * Pointer Register */
+#define I82443BXGX_EAP_OFFSET_EAP 12 /* High 20 bits of error address */
+#define I82443BXGX_EAP_OFFSET_MBE BIT(1) /* Err at EAP was multi-bit (W1TC) */
+#define I82443BXGX_EAP_OFFSET_SBE BIT(0) /* Err at EAP was single-bit (W1TC) */
+
+#define I82443BXGX_ERRCMD 0x90 /* 8bit register starting at this PCI
* config space offset. */
-#define I82443BXGX_ERRCMD_OFFSET_SERR_ON_MBE BIT(1) /* 1 = enable */
-#define I82443BXGX_ERRCMD_OFFSET_SERR_ON_SBE BIT(0) /* 1 = enable */
+#define I82443BXGX_ERRCMD_OFFSET_SERR_ON_MBE BIT(1) /* 1 = enable */
+#define I82443BXGX_ERRCMD_OFFSET_SERR_ON_SBE BIT(0) /* 1 = enable */
-#define I82443BXGX_ERRSTS 0x91 /* 16bit register starting at this PCI
+#define I82443BXGX_ERRSTS 0x91 /* 16bit register starting at this PCI
* config space offset. */
-#define I82443BXGX_ERRSTS_OFFSET_MBFRE 5 /* 3 bits - first err row multibit */
-#define I82443BXGX_ERRSTS_OFFSET_MEF BIT(4) /* 1 = MBE occurred */
-#define I82443BXGX_ERRSTS_OFFSET_SBFRE 1 /* 3 bits - first err row singlebit */
-#define I82443BXGX_ERRSTS_OFFSET_SEF BIT(0) /* 1 = SBE occurred */
-
+#define I82443BXGX_ERRSTS_OFFSET_MBFRE 5 /* 3 bits - first err row multibit */
+#define I82443BXGX_ERRSTS_OFFSET_MEF BIT(4) /* 1 = MBE occurred */
+#define I82443BXGX_ERRSTS_OFFSET_SBFRE 1 /* 3 bits - first err row singlebit */
+#define I82443BXGX_ERRSTS_OFFSET_SEF BIT(0) /* 1 = SBE occurred */
-#define I82443BXGX_DRAMC 0x57 /* 8bit register starting at this PCI
- * config space offset. */
-#define I82443BXGX_DRAMC_OFFSET_DT 3 /* 2 bits, DRAM Type */
-#define I82443BXGX_DRAMC_DRAM_IS_EDO 0 /* 00 = EDO */
+#define I82443BXGX_DRAMC 0x57 /* 8bit register starting at this PCI
+ * config space offset. */
+#define I82443BXGX_DRAMC_OFFSET_DT 3 /* 2 bits, DRAM Type */
+#define I82443BXGX_DRAMC_DRAM_IS_EDO 0 /* 00 = EDO */
#define I82443BXGX_DRAMC_DRAM_IS_SDRAM 1 /* 01 = SDRAM */
-#define I82443BXGX_DRAMC_DRAM_IS_RSDRAM 2 /* 10 = Registered SDRAM */
-
-
-#define I82443BXGX_DRB 0x60 /* 8x 8bit registers starting at this PCI
- * config space offset. */
+#define I82443BXGX_DRAMC_DRAM_IS_RSDRAM 2 /* 10 = Registered SDRAM */
+#define I82443BXGX_DRB 0x60 /* 8x 8bit registers starting at this PCI
+ * config space offset. */
/* FIXME - don't poll when ECC disabled? */
-
struct i82443bxgx_edacmc_error_info {
u32 eap;
};
-
-static void i82443bxgx_edacmc_get_error_info (struct mem_ctl_info *mci,
- struct i82443bxgx_edacmc_error_info *info)
+static void i82443bxgx_edacmc_get_error_info(struct mem_ctl_info *mci,
+ struct i82443bxgx_edacmc_error_info
+ *info)
{
struct pci_dev *pdev;
pdev = to_pci_dev(mci->dev);
I82443BXGX_EAP_OFFSET_MBE);
}
-
-static int i82443bxgx_edacmc_process_error_info (struct mem_ctl_info *mci,
- struct i82443bxgx_edacmc_error_info *info, int handle_errors)
+static int i82443bxgx_edacmc_process_error_info(struct mem_ctl_info *mci,
+ struct
+ i82443bxgx_edacmc_error_info
+ *info, int handle_errors)
{
int error_found = 0;
u32 eapaddr, page, pageoffset;
page = eapaddr >> PAGE_SHIFT;
pageoffset = eapaddr - (page << PAGE_SHIFT);
- if (info->eap & I82443BXGX_EAP_OFFSET_SBE) {
+ if (info->eap & I82443BXGX_EAP_OFFSET_SBE) {
error_found = 1;
if (handle_errors)
- edac_mc_handle_ce(
- mci, page, pageoffset,
- /* 440BX/GX don't make syndrome information available */
- 0,
- edac_mc_find_csrow_by_page(mci, page),
- 0, /* channel */
- mci->ctl_name);
+ edac_mc_handle_ce(mci, page, pageoffset,
+ /* 440BX/GX don't make syndrome information available */
+ 0, edac_mc_find_csrow_by_page(mci, page), 0, /* channel */
+ mci->ctl_name);
}
- if (info->eap & I82443BXGX_EAP_OFFSET_MBE) {
+ if (info->eap & I82443BXGX_EAP_OFFSET_MBE) {
error_found = 1;
if (handle_errors)
- edac_mc_handle_ue(
- mci, page, pageoffset,
- edac_mc_find_csrow_by_page(mci, page),
- mci->ctl_name);
+ edac_mc_handle_ue(mci, page, pageoffset,
+ edac_mc_find_csrow_by_page(mci, page),
+ mci->ctl_name);
}
return error_found;
}
-
static void i82443bxgx_edacmc_check(struct mem_ctl_info *mci)
{
struct i82443bxgx_edacmc_error_info info;
i82443bxgx_edacmc_process_error_info(mci, &info, 1);
}
-
static void i82443bxgx_init_csrows(struct mem_ctl_info *mci,
- struct pci_dev *pdev,
- enum edac_type edac_mode,
- enum mem_type mtype)
+ struct pci_dev *pdev,
+ enum edac_type edac_mode,
+ enum mem_type mtype)
{
struct csrow_info *csrow;
int index;
}
}
-
-static int i82443bxgx_edacmc_probe1(struct pci_dev *pdev, int dev_idx)
+static int i82443bxgx_edacmc_probe1(struct pci_dev *pdev, int dev_idx)
{
struct mem_ctl_info *mci;
u8 dramc;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
pci_read_config_byte(pdev, I82443BXGX_DRAMC, &dramc);
switch ((dramc >> I82443BXGX_DRAMC_OFFSET_DT) & (BIT(0) | BIT(1))) {
- case I82443BXGX_DRAMC_DRAM_IS_EDO:
+ case I82443BXGX_DRAMC_DRAM_IS_EDO:
mtype = MEM_EDO;
break;
case I82443BXGX_DRAMC_DRAM_IS_SDRAM:
mtype = MEM_RDR;
break;
default:
- debugf0("Unknown/reserved DRAM type value in DRAMC register!\n");
+ debugf0
+ ("Unknown/reserved DRAM type value in DRAMC register!\n");
mtype = -MEM_UNKNOWN;
}
mci->scrub_cap = SCRUB_FLAG_HW_SRC;
pci_read_config_dword(pdev, I82443BXGX_NBXCFG, &nbxcfg);
ecc_mode = ((nbxcfg >> I82443BXGX_NBXCFG_OFFSET_DRAM_INTEGRITY) &
- (BIT(0) | BIT(1)));
+ (BIT(0) | BIT(1)));
mci->scrub_mode = (ecc_mode == I82443BXGX_NBXCFG_INTEGRITY_SCRUB)
- ? SCRUB_HW_SRC
- : SCRUB_NONE;
+ ? SCRUB_HW_SRC : SCRUB_NONE;
- switch(ecc_mode) {
+ switch (ecc_mode) {
case I82443BXGX_NBXCFG_INTEGRITY_NONE:
edac_mode = EDAC_NONE;
break;
edac_mode = EDAC_SECDED;
break;
default:
- debugf0("%s(): Unknown/reserved ECC state in NBXCFG register!\n",
- __func__);
+ debugf0
+ ("%s(): Unknown/reserved ECC state in NBXCFG register!\n",
+ __func__);
edac_mode = EDAC_UNKNOWN;
break;
}
* here, or we get "phantom" errors occuring at module-load
* time. */
pci_write_bits32(pdev, I82443BXGX_EAP,
- (I82443BXGX_EAP_OFFSET_SBE | I82443BXGX_EAP_OFFSET_MBE),
- (I82443BXGX_EAP_OFFSET_SBE | I82443BXGX_EAP_OFFSET_MBE));
+ (I82443BXGX_EAP_OFFSET_SBE |
+ I82443BXGX_EAP_OFFSET_MBE),
+ (I82443BXGX_EAP_OFFSET_SBE |
+ I82443BXGX_EAP_OFFSET_MBE));
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = I82443_REVISION;
debugf3("MC: " __FILE__ ": %s(): success\n", __func__);
return 0;
-fail:
+ fail:
edac_mc_free(mci);
return -ENODEV;
}
+
EXPORT_SYMBOL_GPL(i82443bxgx_edacmc_probe1);
/* returns count (>= 0), or negative on error */
static int __devinit i82443bxgx_edacmc_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+ const struct pci_device_id *ent)
{
debugf0("MC: " __FILE__ ": %s()\n", __func__);
/* don't need to call pci_device_enable() */
- return i82443bxgx_edacmc_probe1(pdev, ent->driver_data);
+ return i82443bxgx_edacmc_probe1(pdev, ent->driver_data);
}
-
static void __devexit i82443bxgx_edacmc_remove_one(struct pci_dev *pdev)
{
struct mem_ctl_info *mci;
debugf0(__FILE__ ": %s()\n", __func__);
- if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL )
+ if ((mci = edac_mc_del_mc(&pdev->dev)) == NULL)
return;
edac_mc_free(mci);
}
-EXPORT_SYMBOL_GPL(i82443bxgx_edacmc_remove_one);
+EXPORT_SYMBOL_GPL(i82443bxgx_edacmc_remove_one);
static const struct pci_device_id i82443bxgx_pci_tbl[] __devinitdata = {
{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82443BX_0)},
MODULE_DEVICE_TABLE(pci, i82443bxgx_pci_tbl);
-
static struct pci_driver i82443bxgx_edacmc_driver = {
.name = EDAC_MOD_STR,
.probe = i82443bxgx_edacmc_init_one,
.id_table = i82443bxgx_pci_tbl,
};
-
static int __init i82443bxgx_edacmc_init(void)
{
return pci_register_driver(&i82443bxgx_edacmc_driver);
}
-
static void __exit i82443bxgx_edacmc_exit(void)
{
pci_unregister_driver(&i82443bxgx_edacmc_driver);
}
-
module_init(i82443bxgx_edacmc_init);
module_exit(i82443bxgx_edacmc_exit);
-
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Tim Small <tim@buttersideup.com> - WPAD");
MODULE_DESCRIPTION("EDAC MC support for Intel 82443BX/GX memory controllers");
projects / linux-2.6 / commitdiff