diff options
Diffstat (limited to 'drivers/edac/r82600_edac.c')
-rw-r--r-- | drivers/edac/r82600_edac.c | 140 |
1 files changed, 59 insertions, 81 deletions
diff --git a/drivers/edac/r82600_edac.c b/drivers/edac/r82600_edac.c index e908928..2c29faf 100644 --- a/drivers/edac/r82600_edac.c +++ b/drivers/edac/r82600_edac.c @@ -18,14 +18,17 @@ #include <linux/config.h> #include <linux/module.h> #include <linux/init.h> - #include <linux/pci.h> #include <linux/pci_ids.h> - #include <linux/slab.h> - #include "edac_mc.h" +#define r82600_printk(level, fmt, arg...) \ + edac_printk(level, "r82600", fmt, ##arg) + +#define r82600_mc_printk(mci, level, fmt, arg...) \ + edac_mc_chipset_printk(mci, level, "r82600", fmt, ##arg) + /* Radisys say "The 82600 integrates a main memory SDRAM controller that * supports up to four banks of memory. The four banks can support a mix of * sizes of 64 bit wide (72 bits with ECC) Synchronous DRAM (SDRAM) DIMMs, @@ -126,10 +129,8 @@ struct r82600_error_info { u32 eapr; }; - static unsigned int disable_hardware_scrub = 0; - static void r82600_get_error_info (struct mem_ctl_info *mci, struct r82600_error_info *info) { @@ -138,17 +139,16 @@ static void r82600_get_error_info (struct mem_ctl_info *mci, if (info->eapr & BIT(0)) /* Clear error to allow next error to be reported [p.62] */ pci_write_bits32(mci->pdev, R82600_EAP, - ((u32) BIT(0) & (u32) BIT(1)), - ((u32) BIT(0) & (u32) BIT(1))); + ((u32) BIT(0) & (u32) BIT(1)), + ((u32) BIT(0) & (u32) BIT(1))); if (info->eapr & BIT(1)) /* Clear error to allow next error to be reported [p.62] */ pci_write_bits32(mci->pdev, R82600_EAP, - ((u32) BIT(0) & (u32) BIT(1)), - ((u32) BIT(0) & (u32) BIT(1))); + ((u32) BIT(0) & (u32) BIT(1)), + ((u32) BIT(0) & (u32) BIT(1))); } - static int r82600_process_error_info (struct mem_ctl_info *mci, struct r82600_error_info *info, int handle_errors) { @@ -167,26 +167,25 @@ static int r82600_process_error_info (struct mem_ctl_info *mci, * granularity (upper 19 bits only) */ page = eapaddr >> PAGE_SHIFT; - if (info->eapr & BIT(0)) { /* CE? */ + if (info->eapr & BIT(0)) { /* CE? */ error_found = 1; if (handle_errors) - edac_mc_handle_ce( - mci, page, 0, /* not avail */ - syndrome, - edac_mc_find_csrow_by_page(mci, page), - 0, /* channel */ - mci->ctl_name); + edac_mc_handle_ce(mci, page, 0, /* not avail */ + syndrome, + edac_mc_find_csrow_by_page(mci, page), + 0, /* channel */ + mci->ctl_name); } - if (info->eapr & BIT(1)) { /* UE? */ + if (info->eapr & BIT(1)) { /* UE? */ error_found = 1; if (handle_errors) /* 82600 doesn't give enough info */ edac_mc_handle_ue(mci, page, 0, - edac_mc_find_csrow_by_page(mci, page), - mci->ctl_name); + edac_mc_find_csrow_by_page(mci, page), + mci->ctl_name); } return error_found; @@ -196,7 +195,7 @@ static void r82600_check(struct mem_ctl_info *mci) { struct r82600_error_info info; - debugf1("MC%d: " __FILE__ ": %s()\n", mci->mc_idx, __func__); + debugf1("MC%d: %s()\n", mci->mc_idx, __func__); r82600_get_error_info(mci, &info); r82600_process_error_info(mci, &info, 1); } @@ -213,25 +212,18 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx) u32 scrub_disabled; u32 sdram_refresh_rate; u32 row_high_limit_last = 0; - u32 eap_init_bits; - - debugf0("MC: " __FILE__ ": %s()\n", __func__); - + 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("MC: " __FILE__ ": %s(): sdram refresh rate = %#0x\n", - __func__, sdram_refresh_rate); - - debugf2("MC: " __FILE__ ": %s(): DRAMC register = %#0x\n", __func__, - dramcr); - + debugf2("%s(): sdram refresh rate = %#0x\n", __func__, + sdram_refresh_rate); + debugf2("%s(): DRAMC register = %#0x\n", __func__, dramcr); mci = edac_mc_alloc(0, R82600_NR_CSROWS, R82600_NR_CHANS); if (mci == NULL) { @@ -239,29 +231,28 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx) goto fail; } - debugf0("MC: " __FILE__ ": %s(): mci = %p\n", __func__, mci); - + debugf0("%s(): mci = %p\n", __func__, mci); mci->pdev = pdev; mci->mtype_cap = MEM_FLAG_RDDR | MEM_FLAG_DDR; - mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED; - /* FIXME try to work out if the chip leads have been * - * used for COM2 instead on this board? [MA6?] MAYBE: */ + /* FIXME try to work out if the chip leads have been used for COM2 + * instead on this board? [MA6?] MAYBE: + */ /* On the R82600, the pins for memory bits 72:65 - i.e. the * * EC bits are shared with the pins for COM2 (!), so if COM2 * * is enabled, we assume COM2 is wired up, and thus no EDAC * * is possible. */ mci->edac_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED; + if (ecc_on) { if (scrub_disabled) - debugf3("MC: " __FILE__ ": %s(): mci = %p - " - "Scrubbing disabled! EAP: %#0x\n", __func__, - mci, eapr); + debugf3("%s(): mci = %p - Scrubbing disabled! EAP: " + "%#0x\n", __func__, mci, eapr); } else mci->edac_cap = EDAC_FLAG_NONE; - mci->mod_name = BS_MOD_STR; + mci->mod_name = EDAC_MOD_STR; mci->mod_ver = "$Revision: 1.1.2.6 $"; mci->ctl_name = "R82600"; mci->edac_check = r82600_check; @@ -276,23 +267,21 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx) /* find the DRAM Chip Select Base address and mask */ pci_read_config_byte(mci->pdev, R82600_DRBA + index, &drbar); - debugf1("MC%d: " __FILE__ ": %s() Row=%d DRBA = %#0x\n", - mci->mc_idx, __func__, 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: " __FILE__ ": %s() Row=%d, " - "Boundry Address=%#0x, Last = %#0x \n", - mci->mc_idx, __func__, index, row_high_limit, - row_high_limit_last); + 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; @@ -308,31 +297,22 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx) row_high_limit_last = row_high_limit; } - /* clear counters */ - /* FIXME should we? */ + r82600_get_error_info(mci, &discard); /* clear counters */ if (edac_mc_add_mc(mci)) { - debugf3("MC: " __FILE__ - ": %s(): failed edac_mc_add_mc()\n", __func__); + debugf3("%s(): failed edac_mc_add_mc()\n", __func__); goto fail; } /* get this far and it's successful */ - /* Clear error flags to allow next error to be reported [p.62] */ - /* Test systems seem to always have the UE flag raised on boot */ - - eap_init_bits = BIT(0) & BIT(1); if (disable_hardware_scrub) { - eap_init_bits |= BIT(31); - debugf3("MC: " __FILE__ ": %s(): Disabling Hardware Scrub " - "(scrub on error)\n", __func__); + debugf3("%s(): Disabling Hardware Scrub (scrub on error)\n", + __func__); + pci_write_bits32(mci->pdev, R82600_EAP, BIT(31), BIT(31)); } - pci_write_bits32(mci->pdev, R82600_EAP, eap_init_bits, - eap_init_bits); - - debugf3("MC: " __FILE__ ": %s(): success\n", __func__); + debugf3("%s(): success\n", __func__); return 0; fail: @@ -344,62 +324,60 @@ fail: /* returns count (>= 0), or negative on error */ static int __devinit r82600_init_one(struct pci_dev *pdev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { - debugf0("MC: " __FILE__ ": %s()\n", __func__); + debugf0("%s()\n", __func__); /* don't need to call pci_device_enable() */ return r82600_probe1(pdev, ent->driver_data); } - static void __devexit r82600_remove_one(struct pci_dev *pdev) { struct mem_ctl_info *mci; - debugf0(__FILE__ ": %s()\n", __func__); + debugf0("%s()\n", __func__); - if (((mci = edac_mc_find_mci_by_pdev(pdev)) != NULL) && - !edac_mc_del_mc(mci)) - edac_mc_free(mci); -} + if ((mci = edac_mc_del_mc(pdev)) == NULL) + return; + edac_mc_free(mci); +} static const struct pci_device_id r82600_pci_tbl[] __devinitdata = { - {PCI_DEVICE(PCI_VENDOR_ID_RADISYS, R82600_BRIDGE_ID)}, - {0,} /* 0 terminated list. */ + { + PCI_DEVICE(PCI_VENDOR_ID_RADISYS, R82600_BRIDGE_ID) + }, + { + 0, + } /* 0 terminated list. */ }; MODULE_DEVICE_TABLE(pci, r82600_pci_tbl); - static struct pci_driver r82600_driver = { - .name = BS_MOD_STR, + .name = EDAC_MOD_STR, .probe = r82600_init_one, .remove = __devexit_p(r82600_remove_one), .id_table = r82600_pci_tbl, }; - static int __init r82600_init(void) { return pci_register_driver(&r82600_driver); } - static void __exit r82600_exit(void) { pci_unregister_driver(&r82600_driver); } - module_init(r82600_init); module_exit(r82600_exit); - MODULE_LICENSE("GPL"); MODULE_AUTHOR("Tim Small <tim@buttersideup.com> - WPAD Ltd. " - "on behalf of EADS Astrium"); + "on behalf of EADS Astrium"); MODULE_DESCRIPTION("MC support for Radisys 82600 memory controllers"); module_param(disable_hardware_scrub, bool, 0644); |