// SPDX-License-Identifier: GPL-2.0 /* * EDAC driver for Intel(R) Xeon(R) Skylake processors * Copyright (c) 2016, Intel Corporation. */ #include <linux/kernel.h> #include <linux/processor.h> #include <asm/cpu_device_id.h> #include <asm/intel-family.h> #include <asm/mce.h> #include "edac_module.h" #include "skx_common.h" #define EDAC_MOD_STR … /* * Debug macros */ #define skx_printk(level, fmt, arg...) … #define skx_mc_printk(mci, level, fmt, arg...) … static struct list_head *skx_edac_list; static u64 skx_tolm, skx_tohm; static int skx_num_sockets; static unsigned int nvdimm_count; #define MASK26 … #define MASK29 … static struct skx_dev *get_skx_dev(struct pci_bus *bus, u8 idx) { … } enum munittype { … }; struct munit { … }; /* * List of PCI device ids that we need together with some device * number and function numbers to tell which memory controller the * device belongs to. */ static const struct munit skx_all_munits[] = …; static int get_all_munits(const struct munit *m) { … } static struct res_config skx_cfg = …; static const struct x86_cpu_id skx_cpuids[] = …; MODULE_DEVICE_TABLE(x86cpu, skx_cpuids); static bool skx_check_ecc(u32 mcmtr) { … } static int skx_get_dimm_config(struct mem_ctl_info *mci, struct res_config *cfg) { … } #define SKX_MAX_SAD … #define SKX_GET_SAD(d, i, reg) … #define SKX_GET_ILV(d, i, reg) … #define SKX_SAD_MOD3MODE(sad) … #define SKX_SAD_MOD3(sad) … #define SKX_SAD_LIMIT(sad) … #define SKX_SAD_MOD3ASMOD2(sad) … #define SKX_SAD_ATTR(sad) … #define SKX_SAD_INTERLEAVE(sad) … #define SKX_SAD_ENABLE(sad) … #define SKX_ILV_REMOTE(tgt) … #define SKX_ILV_TARGET(tgt) … static void skx_show_retry_rd_err_log(struct decoded_addr *res, char *msg, int len, bool scrub_err) { … } static bool skx_sad_decode(struct decoded_addr *res) { … } #define SKX_MAX_TAD … #define SKX_GET_TADBASE(d, mc, i, reg) … #define SKX_GET_TADWAYNESS(d, mc, i, reg) … #define SKX_GET_TADCHNILVOFFSET(d, mc, ch, i, reg) … #define SKX_TAD_BASE(b) … #define SKX_TAD_SKT_GRAN(b) … #define SKX_TAD_CHN_GRAN(b) … #define SKX_TAD_LIMIT(b) … #define SKX_TAD_OFFSET(b) … #define SKX_TAD_SKTWAYS(b) … #define SKX_TAD_CHNWAYS(b) … /* which bit used for both socket and channel interleave */ static int skx_granularity[] = …; static u64 skx_do_interleave(u64 addr, int shift, int ways, u64 lowbits) { … } static bool skx_tad_decode(struct decoded_addr *res) { … } #define SKX_MAX_RIR … #define SKX_GET_RIRWAYNESS(d, mc, ch, i, reg) … #define SKX_GET_RIRILV(d, mc, ch, idx, i, reg) … #define SKX_RIR_VALID(b) … #define SKX_RIR_LIMIT(b) … #define SKX_RIR_WAYS(b) … #define SKX_RIR_CHAN_RANK(b) … #define SKX_RIR_OFFSET(b) … static bool skx_rir_decode(struct decoded_addr *res) { … } static u8 skx_close_row[] = …; static u8 skx_close_column[] = …; static u8 skx_open_row[] = …; static u8 skx_open_column[] = …; static u8 skx_open_fine_column[] = …; static int skx_bits(u64 addr, int nbits, u8 *bits) { … } static int skx_bank_bits(u64 addr, int b0, int b1, int do_xor, int x0, int x1) { … } static bool skx_mad_decode(struct decoded_addr *r) { … } static bool skx_decode(struct decoded_addr *res) { … } static struct notifier_block skx_mce_dec = …; #ifdef CONFIG_EDAC_DEBUG /* * Debug feature. * Exercise the address decode logic by writing an address to * /sys/kernel/debug/edac/skx_test/addr. */ static struct dentry *skx_test; static int debugfs_u64_set(void *data, u64 val) { … } DEFINE_SIMPLE_ATTRIBUTE(…); static void setup_skx_debug(void) { … } static void teardown_skx_debug(void) { … } #else static inline void setup_skx_debug(void) {} static inline void teardown_skx_debug(void) {} #endif /*CONFIG_EDAC_DEBUG*/ /* * skx_init: * make sure we are running on the correct cpu model * search for all the devices we need * check which DIMMs are present. */ static int __init skx_init(void) { … } static void __exit skx_exit(void) { … } module_init(…) …; module_exit(skx_exit); module_param(edac_op_state, int, 0444); MODULE_PARM_DESC(…) …; MODULE_LICENSE(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …;
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