/* SPDX-License-Identifier: GPL-2.0 */ /* * Common codes for both the skx_edac driver and Intel 10nm server EDAC driver. * Originally split out from the skx_edac driver. * * Copyright (c) 2018, Intel Corporation. */ #ifndef _SKX_COMM_EDAC_H #define _SKX_COMM_EDAC_H #include #include #define MSG_SIZE 1024 /* * Debug macros */ #define skx_printk(level, fmt, arg...) \ edac_printk(level, "skx", fmt, ##arg) #define skx_mc_printk(mci, level, fmt, arg...) \ edac_mc_chipset_printk(mci, level, "skx", fmt, ##arg) /* * Get a bit field at register value , from bit to bit */ #define GET_BITFIELD(v, lo, hi) \ (((v) & GENMASK_ULL((hi), (lo))) >> (lo)) #define SKX_NUM_IMC 2 /* Memory controllers per socket */ #define SKX_NUM_CHANNELS 3 /* Channels per memory controller */ #define SKX_NUM_DIMMS 2 /* Max DIMMS per channel */ #define I10NM_NUM_DDR_IMC 12 #define I10NM_NUM_DDR_CHANNELS 2 #define I10NM_NUM_DDR_DIMMS 2 #define I10NM_NUM_HBM_IMC 16 #define I10NM_NUM_HBM_CHANNELS 2 #define I10NM_NUM_HBM_DIMMS 1 #define I10NM_NUM_IMC (I10NM_NUM_DDR_IMC + I10NM_NUM_HBM_IMC) #define I10NM_NUM_CHANNELS MAX(I10NM_NUM_DDR_CHANNELS, I10NM_NUM_HBM_CHANNELS) #define I10NM_NUM_DIMMS MAX(I10NM_NUM_DDR_DIMMS, I10NM_NUM_HBM_DIMMS) #define NUM_IMC MAX(SKX_NUM_IMC, I10NM_NUM_IMC) #define NUM_CHANNELS MAX(SKX_NUM_CHANNELS, I10NM_NUM_CHANNELS) #define NUM_DIMMS MAX(SKX_NUM_DIMMS, I10NM_NUM_DIMMS) #define IS_DIMM_PRESENT(r) GET_BITFIELD(r, 15, 15) #define IS_NVDIMM_PRESENT(r, i) GET_BITFIELD(r, i, i) #define MCI_MISC_ECC_MODE(m) (((m) >> 59) & 15) #define MCI_MISC_ECC_DDRT 8 /* read from DDRT */ /* * According to Intel Architecture spec vol 3B, * Table 15-10 "IA32_MCi_Status [15:0] Compound Error Code Encoding" * memory errors should fit one of these masks: * 000f 0000 1mmm cccc (binary) * 000f 0010 1mmm cccc (binary) [RAM used as cache] * where: * f = Correction Report Filtering Bit. If 1, subsequent errors * won't be shown * mmm = error type * cccc = channel */ #define MCACOD_MEM_ERR_MASK 0xef80 /* * Errors from either the memory of the 1-level memory system or the * 2nd level memory (the slow "far" memory) of the 2-level memory system. */ #define MCACOD_MEM_CTL_ERR 0x80 /* * Errors from the 1st level memory (the fast "near" memory as cache) * of the 2-level memory system. */ #define MCACOD_EXT_MEM_ERR 0x280 /* * Each cpu socket contains some pci devices that provide global * information, and also some that are local to each of the two * memory controllers on the die. */ struct skx_dev { struct list_head list; u8 bus[4]; int seg; struct pci_dev *sad_all; struct pci_dev *util_all; struct pci_dev *uracu; /* for i10nm CPU */ struct pci_dev *pcu_cr3; /* for HBM memory detection */ u32 mcroute; struct skx_imc { struct mem_ctl_info *mci; struct pci_dev *mdev; /* for i10nm CPU */ void __iomem *mbase; /* for i10nm CPU */ int chan_mmio_sz; /* for i10nm CPU */ int num_channels; /* channels per memory controller */ int num_dimms; /* dimms per channel */ bool hbm_mc; u8 mc; /* system wide mc# */ u8 lmc; /* socket relative mc# */ u8 src_id, node_id; struct skx_channel { struct pci_dev *cdev; struct pci_dev *edev; u32 retry_rd_err_log_s; u32 retry_rd_err_log_d; u32 retry_rd_err_log_d2; struct skx_dimm { u8 close_pg; u8 bank_xor_enable; u8 fine_grain_bank; u8 rowbits; u8 colbits; } dimms[NUM_DIMMS]; } chan[NUM_CHANNELS]; } imc[NUM_IMC]; }; struct skx_pvt { struct skx_imc *imc; }; enum type { SKX, I10NM, SPR, GNR }; enum { INDEX_SOCKET, INDEX_MEMCTRL, INDEX_CHANNEL, INDEX_DIMM, INDEX_CS, INDEX_NM_FIRST, INDEX_NM_MEMCTRL = INDEX_NM_FIRST, INDEX_NM_CHANNEL, INDEX_NM_DIMM, INDEX_NM_CS, INDEX_MAX }; #define BIT_NM_MEMCTRL BIT_ULL(INDEX_NM_MEMCTRL) #define BIT_NM_CHANNEL BIT_ULL(INDEX_NM_CHANNEL) #define BIT_NM_DIMM BIT_ULL(INDEX_NM_DIMM) #define BIT_NM_CS BIT_ULL(INDEX_NM_CS) struct decoded_addr { struct mce *mce; struct skx_dev *dev; u64 addr; int socket; int imc; int channel; u64 chan_addr; int sktways; int chanways; int dimm; int cs; int rank; int channel_rank; u64 rank_address; int row; int column; int bank_address; int bank_group; bool decoded_by_adxl; }; struct pci_bdf { u32 bus : 8; u32 dev : 5; u32 fun : 3; }; struct res_config { enum type type; /* Configuration agent device ID */ unsigned int decs_did; /* Default bus number configuration register offset */ int busno_cfg_offset; /* DDR memory controllers per socket */ int ddr_imc_num; /* DDR channels per DDR memory controller */ int ddr_chan_num; /* DDR DIMMs per DDR memory channel */ int ddr_dimm_num; /* Per DDR channel memory-mapped I/O size */ int ddr_chan_mmio_sz; /* HBM memory controllers per socket */ int hbm_imc_num; /* HBM channels per HBM memory controller */ int hbm_chan_num; /* HBM DIMMs per HBM memory channel */ int hbm_dimm_num; /* Per HBM channel memory-mapped I/O size */ int hbm_chan_mmio_sz; bool support_ddr5; /* SAD device BDF */ struct pci_bdf sad_all_bdf; /* PCU device BDF */ struct pci_bdf pcu_cr3_bdf; /* UTIL device BDF */ struct pci_bdf util_all_bdf; /* URACU device BDF */ struct pci_bdf uracu_bdf; /* DDR mdev device BDF */ struct pci_bdf ddr_mdev_bdf; /* HBM mdev device BDF */ struct pci_bdf hbm_mdev_bdf; int sad_all_offset; /* Offsets of retry_rd_err_log registers */ u32 *offsets_scrub; u32 *offsets_scrub_hbm0; u32 *offsets_scrub_hbm1; u32 *offsets_demand; u32 *offsets_demand2; u32 *offsets_demand_hbm0; u32 *offsets_demand_hbm1; }; typedef int (*get_dimm_config_f)(struct mem_ctl_info *mci, struct res_config *cfg); typedef bool (*skx_decode_f)(struct decoded_addr *res); typedef void (*skx_show_retry_log_f)(struct decoded_addr *res, char *msg, int len, bool scrub_err); int skx_adxl_get(void); void skx_adxl_put(void); void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_log); void skx_set_mem_cfg(bool mem_cfg_2lm); int skx_get_src_id(struct skx_dev *d, int off, u8 *id); int skx_get_node_id(struct skx_dev *d, u8 *id); int skx_get_all_bus_mappings(struct res_config *cfg, struct list_head **list); int skx_get_hi_lo(unsigned int did, int off[], u64 *tolm, u64 *tohm); int skx_get_dimm_info(u32 mtr, u32 mcmtr, u32 amap, struct dimm_info *dimm, struct skx_imc *imc, int chan, int dimmno, struct res_config *cfg); int skx_get_nvdimm_info(struct dimm_info *dimm, struct skx_imc *imc, int chan, int dimmno, const char *mod_str); int skx_register_mci(struct skx_imc *imc, struct pci_dev *pdev, const char *ctl_name, const char *mod_str, get_dimm_config_f get_dimm_config, struct res_config *cfg); int skx_mce_check_error(struct notifier_block *nb, unsigned long val, void *data); void skx_remove(void); #ifdef CONFIG_EDAC_DEBUG void skx_setup_debug(const char *name); void skx_teardown_debug(void); #else static inline void skx_setup_debug(const char *name) {} static inline void skx_teardown_debug(void) {} #endif #endif /* _SKX_COMM_EDAC_H */