forked from Minki/linux
EDAC: move MCE error descriptions to EDAC core
This is in preparation of adding AMD-specific MCE decoding functionality to the EDAC core. The error decoding macros originate from the AMD64 EDAC driver albeit in a simplified and cleaned up version here. While at it, add macros to generate the error description strings and use them in the error type decoders directly which removes a bunch of code and makes the decoding functions much more readable. Also, fix strings and shorten macro names. Remove superfluous htlink_msgs. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
This commit is contained in:
Borislav Petkov
parent
74fca6a428
commit
b70ef01016
@ -17,6 +17,10 @@ ifdef CONFIG_PCI
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edac_core-objs += edac_pci.o edac_pci_sysfs.o
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endif
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ifdef CONFIG_CPU_SUP_AMD
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edac_core-objs += edac_mce_amd.o
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endif
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obj-$(CONFIG_EDAC_AMD76X) += amd76x_edac.o
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obj-$(CONFIG_EDAC_CPC925) += cpc925_edac.o
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obj-$(CONFIG_EDAC_I5000) += i5000_edac.o
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@ -32,7 +36,7 @@ obj-$(CONFIG_EDAC_X38) += x38_edac.o
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obj-$(CONFIG_EDAC_I82860) += i82860_edac.o
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obj-$(CONFIG_EDAC_R82600) += r82600_edac.o
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amd64_edac_mod-y := amd64_edac_err_types.o amd64_edac.o
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amd64_edac_mod-y := amd64_edac.o
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amd64_edac_mod-$(CONFIG_EDAC_DEBUG) += amd64_edac_dbg.o
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amd64_edac_mod-$(CONFIG_EDAC_AMD64_ERROR_INJECTION) += amd64_edac_inj.o
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@ -18,6 +18,63 @@ struct amd64_pvt;
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static struct mem_ctl_info *mci_lookup[MAX_NUMNODES];
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static struct amd64_pvt *pvt_lookup[MAX_NUMNODES];
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/*
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* See F2x80 for K8 and F2x[1,0]80 for Fam10 and later. The table below is only
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* for DDR2 DRAM mapping.
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*/
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u32 revf_quad_ddr2_shift[] = {
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0, /* 0000b NULL DIMM (128mb) */
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28, /* 0001b 256mb */
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29, /* 0010b 512mb */
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29, /* 0011b 512mb */
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29, /* 0100b 512mb */
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30, /* 0101b 1gb */
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30, /* 0110b 1gb */
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31, /* 0111b 2gb */
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31, /* 1000b 2gb */
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32, /* 1001b 4gb */
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32, /* 1010b 4gb */
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33, /* 1011b 8gb */
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0, /* 1100b future */
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0, /* 1101b future */
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0, /* 1110b future */
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0 /* 1111b future */
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};
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/*
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* Valid scrub rates for the K8 hardware memory scrubber. We map the scrubbing
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* bandwidth to a valid bit pattern. The 'set' operation finds the 'matching-
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* or higher value'.
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*
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*FIXME: Produce a better mapping/linearisation.
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*/
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struct scrubrate scrubrates[] = {
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{ 0x01, 1600000000UL},
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{ 0x02, 800000000UL},
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{ 0x03, 400000000UL},
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{ 0x04, 200000000UL},
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{ 0x05, 100000000UL},
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{ 0x06, 50000000UL},
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{ 0x07, 25000000UL},
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{ 0x08, 12284069UL},
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{ 0x09, 6274509UL},
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{ 0x0A, 3121951UL},
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{ 0x0B, 1560975UL},
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{ 0x0C, 781440UL},
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{ 0x0D, 390720UL},
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{ 0x0E, 195300UL},
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{ 0x0F, 97650UL},
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{ 0x10, 48854UL},
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{ 0x11, 24427UL},
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{ 0x12, 12213UL},
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{ 0x13, 6101UL},
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{ 0x14, 3051UL},
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{ 0x15, 1523UL},
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{ 0x16, 761UL},
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{ 0x00, 0UL}, /* scrubbing off */
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};
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/*
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* Memory scrubber control interface. For K8, memory scrubbing is handled by
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* hardware and can involve L2 cache, dcache as well as the main memory. With
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@ -1101,8 +1158,8 @@ static void k8_map_sysaddr_to_csrow(struct mem_ctl_info *mci,
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u32 page, offset;
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/* Extract the syndrome parts and form a 16-bit syndrome */
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syndrome = EXTRACT_HIGH_SYNDROME(info->nbsl) << 8;
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syndrome |= EXTRACT_LOW_SYNDROME(info->nbsh);
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syndrome = HIGH_SYNDROME(info->nbsl) << 8;
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syndrome |= LOW_SYNDROME(info->nbsh);
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/* CHIPKILL enabled */
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if (info->nbcfg & K8_NBCFG_CHIPKILL) {
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@ -1701,8 +1758,8 @@ static void f10_map_sysaddr_to_csrow(struct mem_ctl_info *mci,
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if (csrow >= 0) {
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error_address_to_page_and_offset(sys_addr, &page, &offset);
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syndrome = EXTRACT_HIGH_SYNDROME(info->nbsl) << 8;
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syndrome |= EXTRACT_LOW_SYNDROME(info->nbsh);
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syndrome = HIGH_SYNDROME(info->nbsl) << 8;
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syndrome |= LOW_SYNDROME(info->nbsh);
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/*
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* Is CHIPKILL on? If so, then we can attempt to use the
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@ -2155,36 +2212,22 @@ static int amd64_get_error_info(struct mem_ctl_info *mci,
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static inline void amd64_decode_gart_tlb_error(struct mem_ctl_info *mci,
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struct amd64_error_info_regs *info)
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{
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u32 err_code;
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u32 ec_tt; /* error code transaction type (2b) */
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u32 ec_ll; /* error code cache level (2b) */
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err_code = EXTRACT_ERROR_CODE(info->nbsl);
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ec_ll = EXTRACT_LL_CODE(err_code);
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ec_tt = EXTRACT_TT_CODE(err_code);
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u32 ec = ERROR_CODE(info->nbsl);
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amd64_mc_printk(mci, KERN_ERR,
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"GART TLB event: transaction type(%s), "
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"cache level(%s)\n", tt_msgs[ec_tt], ll_msgs[ec_ll]);
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"cache level(%s)\n", TT_MSG(ec), LL_MSG(ec));
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}
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static inline void amd64_decode_mem_cache_error(struct mem_ctl_info *mci,
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struct amd64_error_info_regs *info)
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{
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u32 err_code;
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u32 ec_rrrr; /* error code memory transaction (4b) */
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u32 ec_tt; /* error code transaction type (2b) */
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u32 ec_ll; /* error code cache level (2b) */
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err_code = EXTRACT_ERROR_CODE(info->nbsl);
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ec_ll = EXTRACT_LL_CODE(err_code);
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ec_tt = EXTRACT_TT_CODE(err_code);
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ec_rrrr = EXTRACT_RRRR_CODE(err_code);
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u32 ec = ERROR_CODE(info->nbsl);
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amd64_mc_printk(mci, KERN_ERR,
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"cache hierarchy error: memory transaction type(%s), "
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"transaction type(%s), cache level(%s)\n",
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rrrr_msgs[ec_rrrr], tt_msgs[ec_tt], ll_msgs[ec_ll]);
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RRRR_MSG(ec), TT_MSG(ec), LL_MSG(ec));
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}
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@ -2264,21 +2307,8 @@ static void amd64_handle_ue(struct mem_ctl_info *mci,
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static void amd64_decode_bus_error(struct mem_ctl_info *mci,
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struct amd64_error_info_regs *info)
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{
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u32 err_code, ext_ec;
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u32 ec_pp; /* error code participating processor (2p) */
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u32 ec_to; /* error code timed out (1b) */
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u32 ec_rrrr; /* error code memory transaction (4b) */
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u32 ec_ii; /* error code memory or I/O (2b) */
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u32 ec_ll; /* error code cache level (2b) */
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ext_ec = EXTRACT_EXT_ERROR_CODE(info->nbsl);
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err_code = EXTRACT_ERROR_CODE(info->nbsl);
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ec_ll = EXTRACT_LL_CODE(err_code);
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ec_ii = EXTRACT_II_CODE(err_code);
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ec_rrrr = EXTRACT_RRRR_CODE(err_code);
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ec_to = EXTRACT_TO_CODE(err_code);
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ec_pp = EXTRACT_PP_CODE(err_code);
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u32 ec = ERROR_CODE(info->nbsl);
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u32 xec = EXT_ERROR_CODE(info->nbsl);
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amd64_mc_printk(mci, KERN_ERR,
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"BUS ERROR:\n"
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@ -2286,20 +2316,17 @@ static void amd64_decode_bus_error(struct mem_ctl_info *mci,
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" participating processor(%s)\n"
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" memory transaction type(%s)\n"
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" cache level(%s) Error Found by: %s\n",
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to_msgs[ec_to],
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ii_msgs[ec_ii],
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pp_msgs[ec_pp],
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rrrr_msgs[ec_rrrr],
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ll_msgs[ec_ll],
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TO_MSG(ec), II_MSG(ec), PP_MSG(ec), RRRR_MSG(ec), LL_MSG(ec),
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(info->nbsh & K8_NBSH_ERR_SCRUBER) ?
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"Scrubber" : "Normal Operation");
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/* If this was an 'observed' error, early out */
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if (ec_pp == K8_NBSL_PP_OBS)
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return; /* We aren't the node involved */
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/* Bail early out if this was an 'observed' error */
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if (PP(ec) == K8_NBSL_PP_OBS)
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return;
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/* Parse out the extended error code for ECC events */
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switch (ext_ec) {
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switch (xec) {
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/* F10 changed to one Extended ECC error code */
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case F10_NBSL_EXT_ERR_RES: /* Reserved field */
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case F10_NBSL_EXT_ERR_ECC: /* F10 ECC ext err code */
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@ -2379,7 +2406,7 @@ int amd64_process_error_info(struct mem_ctl_info *mci,
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(regs->nbsh & K8_NBSH_CORE3) ? "True" : "False");
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err_code = EXTRACT_ERROR_CODE(regs->nbsl);
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err_code = ERROR_CODE(regs->nbsl);
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/* Determine which error type:
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* 1) GART errors - non-fatal, developmental events
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@ -2387,7 +2414,7 @@ int amd64_process_error_info(struct mem_ctl_info *mci,
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* 3) BUS errors
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* 4) Unknown error
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*/
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if (TEST_TLB_ERROR(err_code)) {
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if (TLB_ERROR(err_code)) {
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/*
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* GART errors are intended to help graphics driver developers
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* to detect bad GART PTEs. It is recommended by AMD to disable
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@ -2411,10 +2438,10 @@ int amd64_process_error_info(struct mem_ctl_info *mci,
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debugf1("GART TLB error\n");
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amd64_decode_gart_tlb_error(mci, info);
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} else if (TEST_MEM_ERROR(err_code)) {
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} else if (MEM_ERROR(err_code)) {
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debugf1("Memory/Cache error\n");
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amd64_decode_mem_cache_error(mci, info);
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} else if (TEST_BUS_ERROR(err_code)) {
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} else if (BUS_ERROR(err_code)) {
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debugf1("Bus (Link/DRAM) error\n");
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amd64_decode_bus_error(mci, info);
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} else {
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@ -2424,21 +2451,10 @@ int amd64_process_error_info(struct mem_ctl_info *mci,
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err_code);
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}
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ext_ec = EXTRACT_EXT_ERROR_CODE(regs->nbsl);
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ext_ec = EXT_ERROR_CODE(regs->nbsl);
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amd64_mc_printk(mci, KERN_ERR,
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"ExtErr=(0x%x) %s\n", ext_ec, ext_msgs[ext_ec]);
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if (((ext_ec >= F10_NBSL_EXT_ERR_CRC &&
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ext_ec <= F10_NBSL_EXT_ERR_TGT) ||
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(ext_ec == F10_NBSL_EXT_ERR_RMW)) &&
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EXTRACT_LDT_LINK(info->nbsh)) {
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amd64_mc_printk(mci, KERN_ERR,
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"Error on hypertransport link: %s\n",
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htlink_msgs[
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EXTRACT_LDT_LINK(info->nbsh)]);
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}
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/*
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* Check the UE bit of the NB status high register, if set generate some
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* logs. If NOT a GART error, then process the event as a NO-INFO event.
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@ -72,6 +72,7 @@
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#include <linux/edac.h>
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#include <asm/msr.h>
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#include "edac_core.h"
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#include "edac_mce_amd.h"
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#define amd64_printk(level, fmt, arg...) \
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edac_printk(level, "amd64", fmt, ##arg)
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@ -303,9 +304,6 @@ enum {
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#define K8_NBSL 0x48
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#define EXTRACT_HIGH_SYNDROME(x) (((x) >> 24) & 0xff)
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#define EXTRACT_EXT_ERROR_CODE(x) (((x) >> 16) & 0x1f)
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/* Family F10h: Normalized Extended Error Codes */
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#define F10_NBSL_EXT_ERR_RES 0x0
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#define F10_NBSL_EXT_ERR_CRC 0x1
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@ -348,17 +346,6 @@ enum {
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#define K8_NBSL_EXT_ERR_CHIPKILL_ECC 0x8
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#define K8_NBSL_EXT_ERR_DRAM_PARITY 0xD
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#define EXTRACT_ERROR_CODE(x) ((x) & 0xffff)
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#define TEST_TLB_ERROR(x) (((x) & 0xFFF0) == 0x0010)
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#define TEST_MEM_ERROR(x) (((x) & 0xFF00) == 0x0100)
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#define TEST_BUS_ERROR(x) (((x) & 0xF800) == 0x0800)
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#define EXTRACT_TT_CODE(x) (((x) >> 2) & 0x3)
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#define EXTRACT_II_CODE(x) (((x) >> 2) & 0x3)
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#define EXTRACT_LL_CODE(x) (((x) >> 0) & 0x3)
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#define EXTRACT_RRRR_CODE(x) (((x) >> 4) & 0xf)
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#define EXTRACT_TO_CODE(x) (((x) >> 8) & 0x1)
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#define EXTRACT_PP_CODE(x) (((x) >> 9) & 0x3)
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/*
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* The following are for BUS type errors AFTER values have been normalized by
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* shifting right
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@ -386,9 +373,7 @@ enum {
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#define K8_NBSH_CORE1 BIT(1)
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#define K8_NBSH_CORE0 BIT(0)
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#define EXTRACT_LDT_LINK(x) (((x) >> 4) & 0x7)
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#define EXTRACT_ERR_CPU_MAP(x) ((x) & 0xF)
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#define EXTRACT_LOW_SYNDROME(x) (((x) >> 15) & 0xff)
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#define K8_NBEAL 0x50
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@ -1,61 +1,5 @@
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#include "amd64_edac.h"
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/*
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* See F2x80 for K8 and F2x[1,0]80 for Fam10 and later. The table below is only
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* for DDR2 DRAM mapping.
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*/
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u32 revf_quad_ddr2_shift[] = {
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0, /* 0000b NULL DIMM (128mb) */
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28, /* 0001b 256mb */
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29, /* 0010b 512mb */
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29, /* 0011b 512mb */
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29, /* 0100b 512mb */
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30, /* 0101b 1gb */
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30, /* 0110b 1gb */
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31, /* 0111b 2gb */
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31, /* 1000b 2gb */
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32, /* 1001b 4gb */
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32, /* 1010b 4gb */
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33, /* 1011b 8gb */
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0, /* 1100b future */
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0, /* 1101b future */
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0, /* 1110b future */
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0 /* 1111b future */
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};
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/*
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* Valid scrub rates for the K8 hardware memory scrubber. We map the scrubbing
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* bandwidth to a valid bit pattern. The 'set' operation finds the 'matching-
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* or higher value'.
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*
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*FIXME: Produce a better mapping/linearisation.
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*/
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struct scrubrate scrubrates[] = {
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{ 0x01, 1600000000UL},
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{ 0x02, 800000000UL},
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{ 0x03, 400000000UL},
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{ 0x04, 200000000UL},
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{ 0x05, 100000000UL},
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{ 0x06, 50000000UL},
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{ 0x07, 25000000UL},
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{ 0x08, 12284069UL},
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{ 0x09, 6274509UL},
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{ 0x0A, 3121951UL},
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{ 0x0B, 1560975UL},
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{ 0x0C, 781440UL},
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{ 0x0D, 390720UL},
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{ 0x0E, 195300UL},
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{ 0x0F, 97650UL},
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{ 0x10, 48854UL},
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{ 0x11, 24427UL},
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{ 0x12, 12213UL},
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{ 0x13, 6101UL},
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{ 0x14, 3051UL},
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{ 0x15, 1523UL},
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{ 0x16, 761UL},
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{ 0x00, 0UL}, /* scrubbing off */
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};
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#include <linux/module.h>
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#include "edac_mce_amd.h"
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/*
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* string representation for the different MCA reported error types, see F3x48
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@ -67,6 +11,7 @@ const char *tt_msgs[] = { /* transaction type */
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"generic",
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"reserved"
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};
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EXPORT_SYMBOL_GPL(tt_msgs);
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const char *ll_msgs[] = { /* cache level */
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"L0",
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@ -74,6 +19,7 @@ const char *ll_msgs[] = { /* cache level */
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"L2",
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"L3/generic"
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};
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EXPORT_SYMBOL_GPL(ll_msgs);
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const char *rrrr_msgs[] = {
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"generic",
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@ -93,6 +39,7 @@ const char *rrrr_msgs[] = {
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"reserved RRRR= 14",
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"reserved RRRR= 15"
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};
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EXPORT_SYMBOL_GPL(rrrr_msgs);
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const char *pp_msgs[] = { /* participating processor */
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"local node originated (SRC)",
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@ -100,11 +47,13 @@ const char *pp_msgs[] = { /* participating processor */
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"local node observed as 3rd party (OBS)",
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"generic"
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};
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EXPORT_SYMBOL_GPL(pp_msgs);
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const char *to_msgs[] = {
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"no timeout",
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"timed out"
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};
|
||||
EXPORT_SYMBOL_GPL(to_msgs);
|
||||
|
||||
const char *ii_msgs[] = { /* memory or i/o */
|
||||
"mem access",
|
||||
@ -112,6 +61,7 @@ const char *ii_msgs[] = { /* memory or i/o */
|
||||
"i/o access",
|
||||
"generic"
|
||||
};
|
||||
EXPORT_SYMBOL_GPL(ii_msgs);
|
||||
|
||||
/* Map the 5 bits of Extended Error code to the string table. */
|
||||
const char *ext_msgs[] = { /* extended error */
|
||||
@ -148,14 +98,4 @@ const char *ext_msgs[] = { /* extended error */
|
||||
"L3 Cache LRU error", /* 1_1110b */
|
||||
"Res 0x1FF error" /* 1_1111b */
|
||||
};
|
||||
|
||||
const char *htlink_msgs[] = {
|
||||
"none",
|
||||
"1",
|
||||
"2",
|
||||
"1 2",
|
||||
"3",
|
||||
"1 3",
|
||||
"2 3",
|
||||
"1 2 3"
|
||||
};
|
||||
EXPORT_SYMBOL_GPL(ext_msgs);
|
||||
29
drivers/edac/edac_mce_amd.h
Normal file
29
drivers/edac/edac_mce_amd.h
Normal file
@ -0,0 +1,29 @@
|
||||
#define ERROR_CODE(x) ((x) & 0xffff)
|
||||
#define EXT_ERROR_CODE(x) (((x) >> 16) & 0x1f)
|
||||
#define LOW_SYNDROME(x) (((x) >> 15) & 0xff)
|
||||
#define HIGH_SYNDROME(x) (((x) >> 24) & 0xff)
|
||||
|
||||
#define TLB_ERROR(x) (((x) & 0xFFF0) == 0x0010)
|
||||
#define MEM_ERROR(x) (((x) & 0xFF00) == 0x0100)
|
||||
#define BUS_ERROR(x) (((x) & 0xF800) == 0x0800)
|
||||
|
||||
#define TT(x) (((x) >> 2) & 0x3)
|
||||
#define TT_MSG(x) tt_msgs[TT(x)]
|
||||
#define II(x) (((x) >> 2) & 0x3)
|
||||
#define II_MSG(x) ii_msgs[II(x)]
|
||||
#define LL(x) (((x) >> 0) & 0x3)
|
||||
#define LL_MSG(x) ll_msgs[LL(x)]
|
||||
#define RRRR(x) (((x) >> 4) & 0xf)
|
||||
#define RRRR_MSG(x) rrrr_msgs[RRRR(x)]
|
||||
#define TO(x) (((x) >> 8) & 0x1)
|
||||
#define TO_MSG(x) to_msgs[TO(x)]
|
||||
#define PP(x) (((x) >> 9) & 0x3)
|
||||
#define PP_MSG(x) pp_msgs[PP(x)]
|
||||
|
||||
extern const char *tt_msgs[];
|
||||
extern const char *ll_msgs[];
|
||||
extern const char *rrrr_msgs[];
|
||||
extern const char *pp_msgs[];
|
||||
extern const char *to_msgs[];
|
||||
extern const char *ii_msgs[];
|
||||
extern const char *ext_msgs[];
|
||||
Loading…
Reference in New Issue
Block a user