diff options
| -rw-r--r-- | drivers/edac/amd64_edac.c | 194 | ||||
| -rw-r--r-- | drivers/edac/amd64_edac.h | 19 |
2 files changed, 89 insertions, 124 deletions
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 987d6acd8f4e..d21efb246d43 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -709,10 +709,10 @@ static inline u64 input_addr_to_sys_addr(struct mem_ctl_info *mci, /* Map the Error address to a PAGE and PAGE OFFSET. */ static inline void error_address_to_page_and_offset(u64 error_address, - u32 *page, u32 *offset) + struct err_info *err) { - *page = (u32) (error_address >> PAGE_SHIFT); - *offset = ((u32) error_address) & ~PAGE_MASK; + err->page = (u32) (error_address >> PAGE_SHIFT); + err->offset = ((u32) error_address) & ~PAGE_MASK; } /* @@ -1023,59 +1023,44 @@ static void read_dram_base_limit_regs(struct amd64_pvt *pvt, unsigned range) } static void k8_map_sysaddr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr, - u16 syndrome) + struct err_info *err) { - struct mem_ctl_info *src_mci; struct amd64_pvt *pvt = mci->pvt_info; - int channel, csrow; - u32 page, offset; - error_address_to_page_and_offset(sys_addr, &page, &offset); + error_address_to_page_and_offset(sys_addr, err); /* * Find out which node the error address belongs to. This may be * different from the node that detected the error. */ - src_mci = find_mc_by_sys_addr(mci, sys_addr); - if (!src_mci) { + err->src_mci = find_mc_by_sys_addr(mci, sys_addr); + if (!err->src_mci) { amd64_mc_err(mci, "failed to map error addr 0x%lx to a node\n", (unsigned long)sys_addr); - edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, - page, offset, syndrome, - -1, -1, -1, - "failed to map error addr to a node", - ""); + err->err_code = ERR_NODE; return; } /* Now map the sys_addr to a CSROW */ - csrow = sys_addr_to_csrow(src_mci, sys_addr); - if (csrow < 0) { - edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, - page, offset, syndrome, - -1, -1, -1, - "failed to map error addr to a csrow", - ""); + err->csrow = sys_addr_to_csrow(err->src_mci, sys_addr); + if (err->csrow < 0) { + err->err_code = ERR_CSROW; return; } /* CHIPKILL enabled */ if (pvt->nbcfg & NBCFG_CHIPKILL) { - channel = get_channel_from_ecc_syndrome(mci, syndrome); - if (channel < 0) { + err->channel = get_channel_from_ecc_syndrome(mci, err->syndrome); + if (err->channel < 0) { /* * Syndrome didn't map, so we don't know which of the * 2 DIMMs is in error. So we need to ID 'both' of them * as suspect. */ - amd64_mc_warn(src_mci, "unknown syndrome 0x%04x - " + amd64_mc_warn(err->src_mci, "unknown syndrome 0x%04x - " "possible error reporting race\n", - syndrome); - edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, - page, offset, syndrome, - csrow, -1, -1, - "unknown syndrome - possible error reporting race", - ""); + err->syndrome); + err->err_code = ERR_CHANNEL; return; } } else { @@ -1087,13 +1072,8 @@ static void k8_map_sysaddr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr, * was obtained from email communication with someone at AMD. * (Wish the email was placed in this comment - norsk) */ - channel = ((sys_addr & BIT(3)) != 0); + err->channel = ((sys_addr & BIT(3)) != 0); } - - edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, src_mci, 1, - page, offset, syndrome, - csrow, channel, -1, - "", ""); } static int ddr2_cs_size(unsigned i, bool dct_width) @@ -1479,7 +1459,7 @@ static u64 f1x_swap_interleaved_region(struct amd64_pvt *pvt, u64 sys_addr) /* For a given @dram_range, check if @sys_addr falls within it. */ static int f1x_match_to_this_node(struct amd64_pvt *pvt, unsigned range, - u64 sys_addr, int *nid, int *chan_sel) + u64 sys_addr, int *chan_sel) { int cs_found = -EINVAL; u64 chan_addr; @@ -1552,15 +1532,14 @@ static int f1x_match_to_this_node(struct amd64_pvt *pvt, unsigned range, cs_found = f1x_lookup_addr_in_dct(chan_addr, node_id, channel); - if (cs_found >= 0) { - *nid = node_id; + if (cs_found >= 0) *chan_sel = channel; - } + return cs_found; } static int f1x_translate_sysaddr_to_cs(struct amd64_pvt *pvt, u64 sys_addr, - int *node, int *chan_sel) + int *chan_sel) { int cs_found = -EINVAL; unsigned range; @@ -1574,8 +1553,7 @@ static int f1x_translate_sysaddr_to_cs(struct amd64_pvt *pvt, u64 sys_addr, (get_dram_limit(pvt, range) >= sys_addr)) { cs_found = f1x_match_to_this_node(pvt, range, - sys_addr, node, - chan_sel); + sys_addr, chan_sel); if (cs_found >= 0) break; } @@ -1591,22 +1569,15 @@ static int f1x_translate_sysaddr_to_cs(struct amd64_pvt *pvt, u64 sys_addr, * (MCX_ADDR). */ static void f1x_map_sysaddr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr, - u16 syndrome) + struct err_info *err) { struct amd64_pvt *pvt = mci->pvt_info; - u32 page, offset; - int nid, csrow, chan = 0; - error_address_to_page_and_offset(sys_addr, &page, &offset); + error_address_to_page_and_offset(sys_addr, err); - csrow = f1x_translate_sysaddr_to_cs(pvt, sys_addr, &nid, &chan); - - if (csrow < 0) { - edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, - page, offset, syndrome, - -1, -1, -1, - "failed to map error addr to a csrow", - ""); + err->csrow = f1x_translate_sysaddr_to_cs(pvt, sys_addr, &err->channel); + if (err->csrow < 0) { + err->err_code = ERR_CSROW; return; } @@ -1616,12 +1587,7 @@ static void f1x_map_sysaddr_to_csrow(struct mem_ctl_info *mci, u64 sys_addr, * this point. */ if (dct_ganging_enabled(pvt)) - chan = get_channel_from_ecc_syndrome(mci, syndrome); - - edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, - page, offset, syndrome, - csrow, chan, -1, - "", ""); + err->channel = get_channel_from_ecc_syndrome(mci, err->syndrome); } /* @@ -1890,78 +1856,54 @@ static int get_channel_from_ecc_syndrome(struct mem_ctl_info *mci, u16 syndrome) return map_err_sym_to_channel(err_sym, pvt->ecc_sym_sz); } -/* - * Handle any Correctable Errors (CEs) that have occurred. Check for valid ERROR - * ADDRESS and process. - */ -static void amd64_handle_ce(struct mem_ctl_info *mci, struct mce *m) +static void __log_bus_error(struct mem_ctl_info *mci, struct err_info *err, + u8 ecc_type) { - struct amd64_pvt *pvt = mci->pvt_info; - u64 sys_addr; - u16 syndrome; - - sys_addr = get_error_address(m); - syndrome = extract_syndrome(m->status); - - amd64_mc_err(mci, "CE ERROR_ADDRESS= 0x%llx\n", sys_addr); + enum hw_event_mc_err_type err_type; + const char *string; - pvt->ops->map_sysaddr_to_csrow(mci, sys_addr, syndrome); -} - -/* Handle any Un-correctable Errors (UEs) */ -static void amd64_handle_ue(struct mem_ctl_info *mci, struct mce *m) -{ - struct mem_ctl_info *log_mci, *src_mci = NULL; - int csrow; - u64 sys_addr; - u32 page, offset; - - log_mci = mci; - - sys_addr = get_error_address(m); - error_address_to_page_and_offset(sys_addr, &page, &offset); - - /* - * Find out which node the error address belongs to. This may be - * different from the node that detected the error. - */ - src_mci = find_mc_by_sys_addr(mci, sys_addr); - if (!src_mci) { - amd64_mc_err(mci, "ERROR ADDRESS (0x%lx) NOT mapped to a MC\n", - (unsigned long)sys_addr); - edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, - page, offset, 0, - -1, -1, -1, - "ERROR ADDRESS NOT mapped to a MC", - ""); + if (ecc_type == 2) + err_type = HW_EVENT_ERR_CORRECTED; + else if (ecc_type == 1) + err_type = HW_EVENT_ERR_UNCORRECTED; + else { + WARN(1, "Something is rotten in the state of Denmark.\n"); return; } - log_mci = src_mci; - - csrow = sys_addr_to_csrow(log_mci, sys_addr); - if (csrow < 0) { - amd64_mc_err(mci, "ERROR_ADDRESS (0x%lx) NOT mapped to CS\n", - (unsigned long)sys_addr); - edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, - page, offset, 0, - -1, -1, -1, - "ERROR ADDRESS NOT mapped to CS", - ""); - } else { - edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, - page, offset, 0, - csrow, -1, -1, - "", ""); + switch (err->err_code) { + case DECODE_OK: + string = ""; + break; + case ERR_NODE: + string = "Failed to map error addr to a node"; + break; + case ERR_CSROW: + string = "Failed to map error addr to a csrow"; + break; + case ERR_CHANNEL: + string = "unknown syndrome - possible error reporting race"; + break; + default: + string = "WTF error"; + break; } + + edac_mc_handle_error(err_type, mci, 1, + err->page, err->offset, err->syndrome, + err->csrow, err->channel, -1, + string, ""); } static inline void __amd64_decode_bus_error(struct mem_ctl_info *mci, struct mce *m) { + struct amd64_pvt *pvt = mci->pvt_info; u8 ecc_type = (m->status >> 45) & 0x3; u8 xec = XEC(m->status, 0x1f); u16 ec = EC(m->status); + u64 sys_addr; + struct err_info err; /* Bail out early if this was an 'observed' error */ if (PP(ec) == NBSL_PP_OBS) @@ -1971,10 +1913,16 @@ static inline void __amd64_decode_bus_error(struct mem_ctl_info *mci, if (xec && xec != F10_NBSL_EXT_ERR_ECC) return; + memset(&err, 0, sizeof(err)); + + sys_addr = get_error_address(m); + if (ecc_type == 2) - amd64_handle_ce(mci, m); - else if (ecc_type == 1) - amd64_handle_ue(mci, m); + err.syndrome = extract_syndrome(m->status); + + pvt->ops->map_sysaddr_to_csrow(mci, sys_addr, &err); + + __log_bus_error(mci, &err, ecc_type); } void amd64_decode_bus_error(int node_id, struct mce *m) diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h index cf7981e1f063..abefab4722c2 100644 --- a/drivers/edac/amd64_edac.h +++ b/drivers/edac/amd64_edac.h @@ -376,6 +376,23 @@ struct amd64_pvt { struct error_injection injection; }; +enum err_codes { + DECODE_OK = 0, + ERR_NODE = -1, + ERR_CSROW = -2, + ERR_CHANNEL = -3, +}; + +struct err_info { + int err_code; + struct mem_ctl_info *src_mci; + int csrow; + int channel; + u16 syndrome; + u32 page; + u32 offset; +}; + static inline u64 get_dram_base(struct amd64_pvt *pvt, unsigned i) { u64 addr = ((u64)pvt->ranges[i].base.lo & 0xffff0000) << 8; @@ -449,7 +466,7 @@ static inline void amd64_remove_sysfs_inject_files(struct mem_ctl_info *mci) struct low_ops { int (*early_channel_count) (struct amd64_pvt *pvt); void (*map_sysaddr_to_csrow) (struct mem_ctl_info *mci, u64 sys_addr, - u16 syndrome); + struct err_info *); int (*dbam_to_cs) (struct amd64_pvt *pvt, u8 dct, unsigned cs_mode); int (*read_dct_pci_cfg) (struct amd64_pvt *pvt, int offset, u32 *val, const char *func); |