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| -rw-r--r-- | drivers/edac/amd64_edac.h | 628 |
1 files changed, 628 insertions, 0 deletions
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h new file mode 100644 index 0000000..6f5d5d6 --- /dev/null +++ b/drivers/edac/amd64_edac.h @@ -0,0 +1,628 @@ +/* + * AMD64 class Memory Controller kernel module + * + * Copyright (c) 2009 SoftwareBitMaker. + * Copyright (c) 2009 Advanced Micro Devices, Inc. + * + * This file may be distributed under the terms of the + * GNU General Public License. + * + * Originally Written by Thayne Harbaugh + * + * Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>: + * - K8 CPU Revision D and greater support + * + * Changes by Dave Peterson <dsp@llnl.gov> <dave_peterson@pobox.com>: + * - Module largely rewritten, with new (and hopefully correct) + * code for dealing with node and chip select interleaving, + * various code cleanup, and bug fixes + * - Added support for memory hoisting using DRAM hole address + * register + * + * Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>: + * -K8 Rev (1207) revision support added, required Revision + * specific mini-driver code to support Rev F as well as + * prior revisions + * + * Changes by Douglas "norsk" Thompson <dougthompson@xmission.com>: + * -Family 10h revision support added. New PCI Device IDs, + * indicating new changes. Actual registers modified + * were slight, less than the Rev E to Rev F transition + * but changing the PCI Device ID was the proper thing to + * do, as it provides for almost automactic family + * detection. The mods to Rev F required more family + * information detection. + * + * Changes/Fixes by Borislav Petkov <borislav.petkov@amd.com>: + * - misc fixes and code cleanups + * + * This module is based on the following documents + * (available from http://www.amd.com/): + * + * Title: BIOS and Kernel Developer's Guide for AMD Athlon 64 and AMD + * Opteron Processors + * AMD publication #: 26094 + *` Revision: 3.26 + * + * Title: BIOS and Kernel Developer's Guide for AMD NPT Family 0Fh + * Processors + * AMD publication #: 32559 + * Revision: 3.00 + * Issue Date: May 2006 + * + * Title: BIOS and Kernel Developer's Guide (BKDG) For AMD Family 10h + * Processors + * AMD publication #: 31116 + * Revision: 3.00 + * Issue Date: September 07, 2007 + * + * Sections in the first 2 documents are no longer in sync with each other. + * The Family 10h BKDG was totally re-written from scratch with a new + * presentation model. + * Therefore, comments that refer to a Document section might be off. + */ + +#include <linux/module.h> +#include <linux/ctype.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/slab.h> +#include <linux/mmzone.h> +#include <linux/edac.h> +#include "edac_core.h" + +#define amd64_printk(level, fmt, arg...) \ + edac_printk(level, "amd64", fmt, ##arg) + +#define amd64_mc_printk(mci, level, fmt, arg...) \ + edac_mc_chipset_printk(mci, level, "amd64", fmt, ##arg) + +/* + * Throughout the comments in this code, the following terms are used: + * + * SysAddr, DramAddr, and InputAddr + * + * These terms come directly from the amd64 documentation + * (AMD publication #26094). They are defined as follows: + * + * SysAddr: + * This is a physical address generated by a CPU core or a device + * doing DMA. If generated by a CPU core, a SysAddr is the result of + * a virtual to physical address translation by the CPU core's address + * translation mechanism (MMU). + * + * DramAddr: + * A DramAddr is derived from a SysAddr by subtracting an offset that + * depends on which node the SysAddr maps to and whether the SysAddr + * is within a range affected by memory hoisting. The DRAM Base + * (section 3.4.4.1) and DRAM Limit (section 3.4.4.2) registers + * determine which node a SysAddr maps to. + * + * If the DRAM Hole Address Register (DHAR) is enabled and the SysAddr + * is within the range of addresses specified by this register, then + * a value x from the DHAR is subtracted from the SysAddr to produce a + * DramAddr. Here, x represents the base address for the node that + * the SysAddr maps to plus an offset due to memory hoisting. See + * section 3.4.8 and the comments in amd64_get_dram_hole_info() and + * sys_addr_to_dram_addr() below for more information. + * + * If the SysAddr is not affected by the DHAR then a value y is + * subtracted from the SysAddr to produce a DramAddr. Here, y is the + * base address for the node that the SysAddr maps to. See section + * 3.4.4 and the comments in sys_addr_to_dram_addr() below for more + * information. + * + * InputAddr: + * A DramAddr is translated to an InputAddr before being passed to the + * memory controller for the node that the DramAddr is associated + * with. The memory controller then maps the InputAddr to a csrow. + * If node interleaving is not in use, then the InputAddr has the same + * value as the DramAddr. Otherwise, the InputAddr is produced by + * discarding the bits used for node interleaving from the DramAddr. + * See section 3.4.4 for more information. + * + * The memory controller for a given node uses its DRAM CS Base and + * DRAM CS Mask registers to map an InputAddr to a csrow. See + * sections 3.5.4 and 3.5.5 for more information. + */ + +#define EDAC_AMD64_VERSION " Ver: 3.2.0 " __DATE__ +#define EDAC_MOD_STR "amd64_edac" + +/* Extended Model from CPUID, for CPU Revision numbers */ +#define OPTERON_CPU_LE_REV_C 0 +#define OPTERON_CPU_REV_D 1 +#define OPTERON_CPU_REV_E 2 + +/* NPT processors have the following Extended Models */ +#define OPTERON_CPU_REV_F 4 +#define OPTERON_CPU_REV_FA 5 + +/* Hardware limit on ChipSelect rows per MC and processors per system */ +#define CHIPSELECT_COUNT 8 +#define DRAM_REG_COUNT 8 + + +/* + * PCI-defined configuration space registers + */ + + +/* + * Function 1 - Address Map + */ +#define K8_DRAM_BASE_LOW 0x40 +#define K8_DRAM_LIMIT_LOW 0x44 +#define K8_DHAR 0xf0 + +#define DHAR_VALID BIT(0) +#define F10_DRAM_MEM_HOIST_VALID BIT(1) + +#define DHAR_BASE_MASK 0xff000000 +#define dhar_base(dhar) (dhar & DHAR_BASE_MASK) + +#define K8_DHAR_OFFSET_MASK 0x0000ff00 +#define k8_dhar_offset(dhar) ((dhar & K8_DHAR_OFFSET_MASK) << 16) + +#define F10_DHAR_OFFSET_MASK 0x0000ff80 + /* NOTE: Extra mask bit vs K8 */ +#define f10_dhar_offset(dhar) ((dhar & F10_DHAR_OFFSET_MASK) << 16) + + +/* F10 High BASE/LIMIT registers */ +#define F10_DRAM_BASE_HIGH 0x140 +#define F10_DRAM_LIMIT_HIGH 0x144 + + +/* + * Function 2 - DRAM controller + */ +#define K8_DCSB0 0x40 +#define F10_DCSB1 0x140 + +#define K8_DCSB_CS_ENABLE BIT(0) +#define K8_DCSB_NPT_SPARE BIT(1) +#define K8_DCSB_NPT_TESTFAIL BIT(2) + +/* + * REV E: select [31:21] and [15:9] from DCSB and the shift amount to form + * the address + */ +#define REV_E_DCSB_BASE_BITS (0xFFE0FE00ULL) +#define REV_E_DCS_SHIFT 4 +#define REV_E_DCSM_COUNT 8 + +#define REV_F_F1Xh_DCSB_BASE_BITS (0x1FF83FE0ULL) +#define REV_F_F1Xh_DCS_SHIFT 8 + +/* + * REV F and later: selects [28:19] and [13:5] from DCSB and the shift amount + * to form the address + */ +#define REV_F_DCSB_BASE_BITS (0x1FF83FE0ULL) +#define REV_F_DCS_SHIFT 8 +#define REV_F_DCSM_COUNT 4 +#define F10_DCSM_COUNT 4 +#define F11_DCSM_COUNT 2 + +/* DRAM CS Mask Registers */ +#define K8_DCSM0 0x60 +#define F10_DCSM1 0x160 + +/* REV E: select [29:21] and [15:9] from DCSM */ +#define REV_E_DCSM_MASK_BITS 0x3FE0FE00 + +/* unused bits [24:20] and [12:0] */ +#define REV_E_DCS_NOTUSED_BITS 0x01F01FFF + +/* REV F and later: select [28:19] and [13:5] from DCSM */ +#define REV_F_F1Xh_DCSM_MASK_BITS 0x1FF83FE0 + +/* unused bits [26:22] and [12:0] */ +#define REV_F_F1Xh_DCS_NOTUSED_BITS 0x07C01FFF + +#define DBAM0 0x80 +#define DBAM1 0x180 + +/* Extract the DIMM 'type' on the i'th DIMM from the DBAM reg value passed */ +#define DBAM_DIMM(i, reg) ((((reg) >> (4*i))) & 0xF) + +#define DBAM_MAX_VALUE 11 + + +#define F10_DCLR_0 0x90 +#define F10_DCLR_1 0x190 +#define REVE_WIDTH_128 BIT(16) +#define F10_WIDTH_128 BIT(11) + + +#define F10_DCHR_0 0x94 +#define F10_DCHR_1 0x194 + +#define F10_DCHR_FOUR_RANK_DIMM BIT(18) +#define F10_DCHR_Ddr3Mode BIT(8) +#define F10_DCHR_MblMode BIT(6) + + +#define F10_DCTL_SEL_LOW 0x110 + +#define dct_sel_baseaddr(pvt) \ + ((pvt->dram_ctl_select_low) & 0xFFFFF800) + +#define dct_sel_interleave_addr(pvt) \ + (((pvt->dram_ctl_select_low) >> 6) & 0x3) + +enum { + F10_DCTL_SEL_LOW_DctSelHiRngEn = BIT(0), + F10_DCTL_SEL_LOW_DctSelIntLvEn = BIT(2), + F10_DCTL_SEL_LOW_DctGangEn = BIT(4), + F10_DCTL_SEL_LOW_DctDatIntLv = BIT(5), + F10_DCTL_SEL_LOW_DramEnable = BIT(8), + F10_DCTL_SEL_LOW_MemCleared = BIT(10), +}; + +#define dct_high_range_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctSelHiRngEn) + +#define dct_interleave_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctSelIntLvEn) + +#define dct_ganging_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctGangEn) + +#define dct_data_intlv_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DctDatIntLv) + +#define dct_dram_enabled(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_DramEnable) + +#define dct_memory_cleared(pvt) \ + (pvt->dram_ctl_select_low & F10_DCTL_SEL_LOW_MemCleared) + + +#define F10_DCTL_SEL_HIGH 0x114 + + +/* + * Function 3 - Misc Control + */ +#define K8_NBCTL 0x40 + +/* Correctable ECC error reporting enable */ +#define K8_NBCTL_CECCEn BIT(0) + +/* UnCorrectable ECC error reporting enable */ +#define K8_NBCTL_UECCEn BIT(1) + +#define K8_NBCFG 0x44 +#define K8_NBCFG_CHIPKILL BIT(23) +#define K8_NBCFG_ECC_ENABLE BIT(22) + +#define K8_NBSL 0x48 + + +#define EXTRACT_HIGH_SYNDROME(x) (((x) >> 24) & 0xff) +#define EXTRACT_EXT_ERROR_CODE(x) (((x) >> 16) & 0x1f) + +/* Family F10h: Normalized Extended Error Codes */ +#define F10_NBSL_EXT_ERR_RES 0x0 +#define F10_NBSL_EXT_ERR_CRC 0x1 +#define F10_NBSL_EXT_ERR_SYNC 0x2 +#define F10_NBSL_EXT_ERR_MST 0x3 +#define F10_NBSL_EXT_ERR_TGT 0x4 +#define F10_NBSL_EXT_ERR_GART 0x5 +#define F10_NBSL_EXT_ERR_RMW 0x6 +#define F10_NBSL_EXT_ERR_WDT 0x7 +#define F10_NBSL_EXT_ERR_ECC 0x8 +#define F10_NBSL_EXT_ERR_DEV 0x9 +#define F10_NBSL_EXT_ERR_LINK_DATA 0xA + +/* Next two are overloaded values */ +#define F10_NBSL_EXT_ERR_LINK_PROTO 0xB +#define F10_NBSL_EXT_ERR_L3_PROTO 0xB + +#define F10_NBSL_EXT_ERR_NB_ARRAY 0xC +#define F10_NBSL_EXT_ERR_DRAM_PARITY 0xD +#define F10_NBSL_EXT_ERR_LINK_RETRY 0xE + +/* Next two are overloaded values */ +#define F10_NBSL_EXT_ERR_GART_WALK 0xF +#define F10_NBSL_EXT_ERR_DEV_WALK 0xF + +/* 0x10 to 0x1B: Reserved */ +#define F10_NBSL_EXT_ERR_L3_DATA 0x1C +#define F10_NBSL_EXT_ERR_L3_TAG 0x1D +#define F10_NBSL_EXT_ERR_L3_LRU 0x1E + +/* K8: Normalized Extended Error Codes */ +#define K8_NBSL_EXT_ERR_ECC 0x0 +#define K8_NBSL_EXT_ERR_CRC 0x1 +#define K8_NBSL_EXT_ERR_SYNC 0x2 +#define K8_NBSL_EXT_ERR_MST 0x3 +#define K8_NBSL_EXT_ERR_TGT 0x4 +#define K8_NBSL_EXT_ERR_GART 0x5 +#define K8_NBSL_EXT_ERR_RMW 0x6 +#define K8_NBSL_EXT_ERR_WDT 0x7 +#define K8_NBSL_EXT_ERR_CHIPKILL_ECC 0x8 +#define K8_NBSL_EXT_ERR_DRAM_PARITY 0xD + +#define EXTRACT_ERROR_CODE(x) ((x) & 0xffff) +#define TEST_TLB_ERROR(x) (((x) & 0xFFF0) == 0x0010) +#define TEST_MEM_ERROR(x) (((x) & 0xFF00) == 0x0100) +#define TEST_BUS_ERROR(x) (((x) & 0xF800) == 0x0800) +#define EXTRACT_TT_CODE(x) (((x) >> 2) & 0x3) +#define EXTRACT_II_CODE(x) (((x) >> 2) & 0x3) +#define EXTRACT_LL_CODE(x) (((x) >> 0) & 0x3) +#define EXTRACT_RRRR_CODE(x) (((x) >> 4) & 0xf) +#define EXTRACT_TO_CODE(x) (((x) >> 8) & 0x1) +#define EXTRACT_PP_CODE(x) (((x) >> 9) & 0x3) + +/* + * The following are for BUS type errors AFTER values have been normalized by + * shifting right + */ +#define K8_NBSL_PP_SRC 0x0 +#define K8_NBSL_PP_RES 0x1 +#define K8_NBSL_PP_OBS 0x2 +#define K8_NBSL_PP_GENERIC 0x3 + + +#define K8_NBSH 0x4C + +#define K8_NBSH_VALID_BIT BIT(31) +#define K8_NBSH_OVERFLOW BIT(30) +#define K8_NBSH_UNCORRECTED_ERR BIT(29) +#define K8_NBSH_ERR_ENABLE BIT(28) +#define K8_NBSH_MISC_ERR_VALID BIT(27) +#define K8_NBSH_VALID_ERROR_ADDR BIT(26) +#define K8_NBSH_PCC BIT(25) +#define K8_NBSH_CECC BIT(14) +#define K8_NBSH_UECC BIT(13) +#define K8_NBSH_ERR_SCRUBER BIT(8) +#define K8_NBSH_CORE3 BIT(3) +#define K8_NBSH_CORE2 BIT(2) +#define K8_NBSH_CORE1 BIT(1) +#define K8_NBSH_CORE0 BIT(0) + +#define EXTRACT_LDT_LINK(x) (((x) >> 4) & 0x7) +#define EXTRACT_ERR_CPU_MAP(x) ((x) & 0xF) +#define EXTRACT_LOW_SYNDROME(x) (((x) >> 15) & 0xff) + + +#define K8_NBEAL 0x50 +#define K8_NBEAH 0x54 +#define K8_SCRCTRL 0x58 + +#define F10_NB_CFG_LOW 0x88 +#define F10_NB_CFG_LOW_ENABLE_EXT_CFG BIT(14) + +#define F10_NB_CFG_HIGH 0x8C + +#define F10_ONLINE_SPARE 0xB0 +#define F10_ONLINE_SPARE_SWAPDONE0(x) ((x) & BIT(1)) +#define F10_ONLINE_SPARE_SWAPDONE1(x) ((x) & BIT(3)) +#define F10_ONLINE_SPARE_BADDRAM_CS0(x) (((x) >> 4) & 0x00000007) +#define F10_ONLINE_SPARE_BADDRAM_CS1(x) (((x) >> 8) & 0x00000007) + +#define F10_NB_ARRAY_ADDR 0xB8 + +#define F10_NB_ARRAY_DRAM_ECC 0x80000000 + +/* Bits [2:1] are used to select 16-byte section within a 64-byte cacheline */ +#define SET_NB_ARRAY_ADDRESS(section) (((section) & 0x3) << 1) + +#define F10_NB_ARRAY_DATA 0xBC + +#define SET_NB_DRAM_INJECTION_WRITE(word, bits) \ + (BIT(((word) & 0xF) + 20) | \ + BIT(17) | \ + ((bits) & 0xF)) + +#define SET_NB_DRAM_INJECTION_READ(word, bits) \ + (BIT(((word) & 0xF) + 20) | \ + BIT(16) | \ + ((bits) & 0xF)) + +#define K8_NBCAP 0xE8 +#define K8_NBCAP_CORES (BIT(12)|BIT(13)) +#define K8_NBCAP_CHIPKILL BIT(4) +#define K8_NBCAP_SECDED BIT(3) +#define K8_NBCAP_8_NODE BIT(2) +#define K8_NBCAP_DUAL_NODE BIT(1) +#define K8_NBCAP_DCT_DUAL BIT(0) + +/* + * MSR Regs + */ +#define K8_MSR_MCGCTL 0x017b +#define K8_MSR_MCGCTL_NBE BIT(4) + +#define K8_MSR_MC4CTL 0x0410 +#define K8_MSR_MC4STAT 0x0411 +#define K8_MSR_MC4ADDR 0x0412 + +/* AMD sets the first MC device at device ID 0x18. */ +static inline int get_mc_node_id_from_pdev(struct pci_dev *pdev) +{ + return PCI_SLOT(pdev->devfn) - 0x18; +} + +enum amd64_chipset_families { + K8_CPUS = 0, + F10_CPUS, + F11_CPUS, +}; + +/* + * Structure to hold: + * + * 1) dynamically read status and error address HW registers + * 2) sysfs entered values + * 3) MCE values + * + * Depends on entry into the modules + */ +struct amd64_error_info_regs { + u32 nbcfg; + u32 nbsh; + u32 nbsl; + u32 nbeah; + u32 nbeal; +}; + +/* Error injection control structure */ +struct error_injection { + u32 section; + u32 word; + u32 bit_map; +}; + +struct amd64_pvt { + /* pci_device handles which we utilize */ + struct pci_dev *addr_f1_ctl; + struct pci_dev *dram_f2_ctl; + struct pci_dev *misc_f3_ctl; + + int mc_node_id; /* MC index of this MC node */ + int ext_model; /* extended model value of this node */ + + struct low_ops *ops; /* pointer to per PCI Device ID func table */ + + int channel_count; + + /* Raw registers */ + u32 dclr0; /* DRAM Configuration Low DCT0 reg */ + u32 dclr1; /* DRAM Configuration Low DCT1 reg */ + u32 dchr0; /* DRAM Configuration High DCT0 reg */ + u32 dchr1; /* DRAM Configuration High DCT1 reg */ + u32 nbcap; /* North Bridge Capabilities */ + u32 nbcfg; /* F10 North Bridge Configuration */ + u32 ext_nbcfg; /* Extended F10 North Bridge Configuration */ + u32 dhar; /* DRAM Hoist reg */ + u32 dbam0; /* DRAM Base Address Mapping reg for DCT0 */ + u32 dbam1; /* DRAM Base Address Mapping reg for DCT1 */ + + /* DRAM CS Base Address Registers F2x[1,0][5C:40] */ + u32 dcsb0[CHIPSELECT_COUNT]; + u32 dcsb1[CHIPSELECT_COUNT]; + + /* DRAM CS Mask Registers F2x[1,0][6C:60] */ + u32 dcsm0[CHIPSELECT_COUNT]; + u32 dcsm1[CHIPSELECT_COUNT]; + + /* + * Decoded parts of DRAM BASE and LIMIT Registers + * F1x[78,70,68,60,58,50,48,40] + */ + u64 dram_base[DRAM_REG_COUNT]; + u64 dram_limit[DRAM_REG_COUNT]; + u8 dram_IntlvSel[DRAM_REG_COUNT]; + u8 dram_IntlvEn[DRAM_REG_COUNT]; + u8 dram_DstNode[DRAM_REG_COUNT]; + u8 dram_rw_en[DRAM_REG_COUNT]; + + /* + * The following fields are set at (load) run time, after CPU revision + * has been determined, since the dct_base and dct_mask registers vary + * based on revision + */ + u32 dcsb_base; /* DCSB base bits */ + u32 dcsm_mask; /* DCSM mask bits */ + u32 num_dcsm; /* Number of DCSM registers */ + u32 dcs_mask_notused; /* DCSM notused mask bits */ + u32 dcs_shift; /* DCSB and DCSM shift value */ + + u64 top_mem; /* top of memory below 4GB */ + u64 top_mem2; /* top of memory above 4GB */ + + u32 dram_ctl_select_low; /* DRAM Controller Select Low Reg */ + u32 dram_ctl_select_high; /* DRAM Controller Select High Reg */ + u32 online_spare; /* On-Line spare Reg */ + + /* temp storage for when input is received from sysfs */ + struct amd64_error_info_regs ctl_error_info; + + /* place to store error injection parameters prior to issue */ + struct error_injection injection; + + /* Save old hw registers' values before we modified them */ + u32 nbctl_mcgctl_saved; /* When true, following 2 are valid */ + u32 old_nbctl; + u32 *old_mcgctl; /* per core on this node */ + + /* MC Type Index value: socket F vs Family 10h */ + u32 mc_type_index; + + /* misc settings */ + struct flags { + unsigned long cf8_extcfg:1; + } flags; +}; + +struct scrubrate { + u32 scrubval; /* bit pattern for scrub rate */ + u32 bandwidth; /* bandwidth consumed (bytes/sec) */ +}; + +extern struct scrubrate scrubrates[23]; +extern u32 revf_quad_ddr2_shift[16]; +extern const char *tt_msgs[4]; +extern const char *ll_msgs[4]; +extern const char *rrrr_msgs[16]; +extern const char *to_msgs[2]; +extern const char *pp_msgs[4]; +extern const char *ii_msgs[4]; +extern const char *ext_msgs[32]; +extern const char *htlink_msgs[8]; + +/* + * Each of the PCI Device IDs types have their own set of hardware accessor + * functions and per device encoding/decoding logic. + */ +struct low_ops { + int (*probe_valid_hardware)(struct amd64_pvt *pvt); + int (*early_channel_count)(struct amd64_pvt *pvt); + + u64 (*get_error_address)(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info); + void (*read_dram_base_limit)(struct amd64_pvt *pvt, int dram); + void (*read_dram_ctl_register)(struct amd64_pvt *pvt); + void (*map_sysaddr_to_csrow)(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info, + u64 SystemAddr); + int (*dbam_map_to_pages)(struct amd64_pvt *pvt, int dram_map); +}; + +struct amd64_family_type { + const char *ctl_name; + u16 addr_f1_ctl; + u16 misc_f3_ctl; + struct low_ops ops; +}; + +static struct amd64_family_type amd64_family_types[]; + +static inline const char *get_amd_family_name(int index) +{ + return amd64_family_types[index].ctl_name; +} + +static inline struct low_ops *family_ops(int index) +{ + return &amd64_family_types[index].ops; +} + +/* + * For future CPU versions, verify the following as new 'slow' rates appear and + * modify the necessary skip values for the supported CPU. + */ +#define K8_MIN_SCRUB_RATE_BITS 0x0 +#define F10_MIN_SCRUB_RATE_BITS 0x5 +#define F11_MIN_SCRUB_RATE_BITS 0x6 + +int amd64_process_error_info(struct mem_ctl_info *mci, + struct amd64_error_info_regs *info, + int handle_errors); +int amd64_get_dram_hole_info(struct mem_ctl_info *mci, u64 *hole_base, + u64 *hole_offset, u64 *hole_size); |
