diff options
-rw-r--r-- | drivers/acpi/nfit/core.c | 27 | ||||
-rw-r--r-- | drivers/edac/Kconfig | 7 | ||||
-rw-r--r-- | drivers/edac/edac_mc.c | 41 | ||||
-rw-r--r-- | drivers/edac/edac_mc_sysfs.c | 26 | ||||
-rw-r--r-- | drivers/edac/sb_edac.c | 12 | ||||
-rw-r--r-- | drivers/edac/skx_edac.c | 67 | ||||
-rw-r--r-- | drivers/firmware/dmi_scan.c | 31 | ||||
-rw-r--r-- | include/acpi/nfit.h | 18 | ||||
-rw-r--r-- | include/linux/dmi.h | 2 | ||||
-rw-r--r-- | include/linux/edac.h | 3 |
10 files changed, 175 insertions, 59 deletions
diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c index eb09ef55c38a..22a112b4f4d8 100644 --- a/drivers/acpi/nfit/core.c +++ b/drivers/acpi/nfit/core.c @@ -23,6 +23,7 @@ #include <linux/io.h> #include <linux/nd.h> #include <asm/cacheflush.h> +#include <acpi/nfit.h> #include "nfit.h" /* @@ -690,6 +691,32 @@ static bool add_memdev(struct acpi_nfit_desc *acpi_desc, return true; } +int nfit_get_smbios_id(u32 device_handle, u16 *flags) +{ + struct acpi_nfit_memory_map *memdev; + struct acpi_nfit_desc *acpi_desc; + struct nfit_mem *nfit_mem; + + mutex_lock(&acpi_desc_lock); + list_for_each_entry(acpi_desc, &acpi_descs, list) { + mutex_lock(&acpi_desc->init_mutex); + list_for_each_entry(nfit_mem, &acpi_desc->dimms, list) { + memdev = __to_nfit_memdev(nfit_mem); + if (memdev->device_handle == device_handle) { + mutex_unlock(&acpi_desc->init_mutex); + mutex_unlock(&acpi_desc_lock); + *flags = memdev->flags; + return memdev->physical_id; + } + } + mutex_unlock(&acpi_desc->init_mutex); + } + mutex_unlock(&acpi_desc_lock); + + return -ENODEV; +} +EXPORT_SYMBOL_GPL(nfit_get_smbios_id); + /* * An implementation may provide a truncated control region if no block windows * are defined. diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig index cfcb91056f23..da2da53bca6d 100644 --- a/drivers/edac/Kconfig +++ b/drivers/edac/Kconfig @@ -232,9 +232,12 @@ config EDAC_SBRIDGE config EDAC_SKX tristate "Intel Skylake server Integrated MC" depends on PCI && X86_64 && X86_MCE_INTEL && PCI_MMCONFIG + select DMI help Support for error detection and correction the Intel - Skylake server Integrated Memory Controllers. + Skylake server Integrated Memory Controllers. If your + system has non-volatile DIMMs you should also manually + select CONFIG_ACPI_NFIT. config EDAC_PND2 tristate "Intel Pondicherry2" @@ -254,7 +257,7 @@ config EDAC_MPC85XX config EDAC_LAYERSCAPE tristate "Freescale Layerscape DDR" - depends on ARCH_LAYERSCAPE + depends on ARCH_LAYERSCAPE || SOC_LS1021A help Support for error detection and correction on Freescale memory controllers on Layerscape SoCs. diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 48193f5f3b56..3bb82e511eca 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -195,26 +195,27 @@ static void edac_mc_dump_mci(struct mem_ctl_info *mci) #endif /* CONFIG_EDAC_DEBUG */ const char * const edac_mem_types[] = { - [MEM_EMPTY] = "Empty csrow", - [MEM_RESERVED] = "Reserved csrow type", - [MEM_UNKNOWN] = "Unknown csrow type", - [MEM_FPM] = "Fast page mode RAM", - [MEM_EDO] = "Extended data out RAM", - [MEM_BEDO] = "Burst Extended data out RAM", - [MEM_SDR] = "Single data rate SDRAM", - [MEM_RDR] = "Registered single data rate SDRAM", - [MEM_DDR] = "Double data rate SDRAM", - [MEM_RDDR] = "Registered Double data rate SDRAM", - [MEM_RMBS] = "Rambus DRAM", - [MEM_DDR2] = "Unbuffered DDR2 RAM", - [MEM_FB_DDR2] = "Fully buffered DDR2", - [MEM_RDDR2] = "Registered DDR2 RAM", - [MEM_XDR] = "Rambus XDR", - [MEM_DDR3] = "Unbuffered DDR3 RAM", - [MEM_RDDR3] = "Registered DDR3 RAM", - [MEM_LRDDR3] = "Load-Reduced DDR3 RAM", - [MEM_DDR4] = "Unbuffered DDR4 RAM", - [MEM_RDDR4] = "Registered DDR4 RAM", + [MEM_EMPTY] = "Empty", + [MEM_RESERVED] = "Reserved", + [MEM_UNKNOWN] = "Unknown", + [MEM_FPM] = "FPM", + [MEM_EDO] = "EDO", + [MEM_BEDO] = "BEDO", + [MEM_SDR] = "Unbuffered-SDR", + [MEM_RDR] = "Registered-SDR", + [MEM_DDR] = "Unbuffered-DDR", + [MEM_RDDR] = "Registered-DDR", + [MEM_RMBS] = "RMBS", + [MEM_DDR2] = "Unbuffered-DDR2", + [MEM_FB_DDR2] = "FullyBuffered-DDR2", + [MEM_RDDR2] = "Registered-DDR2", + [MEM_XDR] = "XDR", + [MEM_DDR3] = "Unbuffered-DDR3", + [MEM_RDDR3] = "Registered-DDR3", + [MEM_LRDDR3] = "Load-Reduced-DDR3-RAM", + [MEM_DDR4] = "Unbuffered-DDR4", + [MEM_RDDR4] = "Registered-DDR4", + [MEM_NVDIMM] = "Non-volatile-RAM", }; EXPORT_SYMBOL_GPL(edac_mem_types); diff --git a/drivers/edac/edac_mc_sysfs.c b/drivers/edac/edac_mc_sysfs.c index c70ea82c815c..7481955160a4 100644 --- a/drivers/edac/edac_mc_sysfs.c +++ b/drivers/edac/edac_mc_sysfs.c @@ -91,28 +91,6 @@ static struct device *mci_pdev; /* * various constants for Memory Controllers */ -static const char * const mem_types[] = { - [MEM_EMPTY] = "Empty", - [MEM_RESERVED] = "Reserved", - [MEM_UNKNOWN] = "Unknown", - [MEM_FPM] = "FPM", - [MEM_EDO] = "EDO", - [MEM_BEDO] = "BEDO", - [MEM_SDR] = "Unbuffered-SDR", - [MEM_RDR] = "Registered-SDR", - [MEM_DDR] = "Unbuffered-DDR", - [MEM_RDDR] = "Registered-DDR", - [MEM_RMBS] = "RMBS", - [MEM_DDR2] = "Unbuffered-DDR2", - [MEM_FB_DDR2] = "FullyBuffered-DDR2", - [MEM_RDDR2] = "Registered-DDR2", - [MEM_XDR] = "XDR", - [MEM_DDR3] = "Unbuffered-DDR3", - [MEM_RDDR3] = "Registered-DDR3", - [MEM_DDR4] = "Unbuffered-DDR4", - [MEM_RDDR4] = "Registered-DDR4" -}; - static const char * const dev_types[] = { [DEV_UNKNOWN] = "Unknown", [DEV_X1] = "x1", @@ -196,7 +174,7 @@ static ssize_t csrow_mem_type_show(struct device *dev, { struct csrow_info *csrow = to_csrow(dev); - return sprintf(data, "%s\n", mem_types[csrow->channels[0]->dimm->mtype]); + return sprintf(data, "%s\n", edac_mem_types[csrow->channels[0]->dimm->mtype]); } static ssize_t csrow_dev_type_show(struct device *dev, @@ -549,7 +527,7 @@ static ssize_t dimmdev_mem_type_show(struct device *dev, { struct dimm_info *dimm = to_dimm(dev); - return sprintf(data, "%s\n", mem_types[dimm->mtype]); + return sprintf(data, "%s\n", edac_mem_types[dimm->mtype]); } static ssize_t dimmdev_dev_type_show(struct device *dev, diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index 872100215ca0..4a89c8093307 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -110,6 +110,10 @@ static const u32 knl_interleave_list[] = { 0xdc, 0xe4, 0xec, 0xf4, 0xfc, /* 15-19 */ 0x104, 0x10c, 0x114, 0x11c, /* 20-23 */ }; +#define MAX_INTERLEAVE \ + (max_t(unsigned int, ARRAY_SIZE(sbridge_interleave_list), \ + max_t(unsigned int, ARRAY_SIZE(ibridge_interleave_list), \ + ARRAY_SIZE(knl_interleave_list)))) struct interleave_pkg { unsigned char start; @@ -321,7 +325,6 @@ struct sbridge_info { const u32 *interleave_list; const struct interleave_pkg *interleave_pkg; u8 max_sad; - u8 max_interleave; u8 (*get_node_id)(struct sbridge_pvt *pvt); enum mem_type (*get_memory_type)(struct sbridge_pvt *pvt); enum dev_type (*get_width)(struct sbridge_pvt *pvt, u32 mtr); @@ -1899,7 +1902,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci, int n_rir, n_sads, n_tads, sad_way, sck_xch; int sad_interl, idx, base_ch; int interleave_mode, shiftup = 0; - unsigned sad_interleave[pvt->info.max_interleave]; + unsigned int sad_interleave[MAX_INTERLEAVE]; u32 reg, dram_rule; u8 ch_way, sck_way, pkg, sad_ha = 0; u32 tad_offset; @@ -3169,7 +3172,6 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type) pvt->info.dram_attr = dram_attr; pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule); pvt->info.interleave_list = ibridge_interleave_list; - pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list); pvt->info.interleave_pkg = ibridge_interleave_pkg; pvt->info.get_width = ibridge_get_width; @@ -3194,7 +3196,6 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type) pvt->info.dram_attr = dram_attr; pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule); pvt->info.interleave_list = sbridge_interleave_list; - pvt->info.max_interleave = ARRAY_SIZE(sbridge_interleave_list); pvt->info.interleave_pkg = sbridge_interleave_pkg; pvt->info.get_width = sbridge_get_width; @@ -3219,7 +3220,6 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type) pvt->info.dram_attr = dram_attr; pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule); pvt->info.interleave_list = ibridge_interleave_list; - pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list); pvt->info.interleave_pkg = ibridge_interleave_pkg; pvt->info.get_width = ibridge_get_width; @@ -3244,7 +3244,6 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type) pvt->info.dram_attr = dram_attr; pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule); pvt->info.interleave_list = ibridge_interleave_list; - pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list); pvt->info.interleave_pkg = ibridge_interleave_pkg; pvt->info.get_width = broadwell_get_width; @@ -3269,7 +3268,6 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type) pvt->info.dram_attr = dram_attr_knl; pvt->info.max_sad = ARRAY_SIZE(knl_dram_rule); pvt->info.interleave_list = knl_interleave_list; - pvt->info.max_interleave = ARRAY_SIZE(knl_interleave_list); pvt->info.interleave_pkg = ibridge_interleave_pkg; pvt->info.get_width = knl_get_width; diff --git a/drivers/edac/skx_edac.c b/drivers/edac/skx_edac.c index 912c4930c9ef..fae095162c01 100644 --- a/drivers/edac/skx_edac.c +++ b/drivers/edac/skx_edac.c @@ -14,6 +14,8 @@ #include <linux/module.h> #include <linux/init.h> +#include <linux/acpi.h> +#include <linux/dmi.h> #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> @@ -24,6 +26,7 @@ #include <linux/bitmap.h> #include <linux/math64.h> #include <linux/mod_devicetable.h> +#include <acpi/nfit.h> #include <asm/cpu_device_id.h> #include <asm/intel-family.h> #include <asm/processor.h> @@ -302,6 +305,7 @@ static int get_dimm_attr(u32 reg, int lobit, int hibit, int add, int minval, } #define IS_DIMM_PRESENT(mtr) GET_BITFIELD((mtr), 15, 15) +#define IS_NVDIMM_PRESENT(mcddrtcfg, i) GET_BITFIELD((mcddrtcfg), (i), (i)) #define numrank(reg) get_dimm_attr((reg), 12, 13, 0, 0, 2, "ranks") #define numrow(reg) get_dimm_attr((reg), 2, 4, 12, 1, 6, "rows") @@ -350,8 +354,6 @@ static int get_dimm_info(u32 mtr, u32 amap, struct dimm_info *dimm, int banks = 16, ranks, rows, cols, npages; u64 size; - if (!IS_DIMM_PRESENT(mtr)) - return 0; ranks = numrank(mtr); rows = numrow(mtr); cols = numcol(mtr); @@ -383,6 +385,54 @@ static int get_dimm_info(u32 mtr, u32 amap, struct dimm_info *dimm, return 1; } +static int get_nvdimm_info(struct dimm_info *dimm, struct skx_imc *imc, + int chan, int dimmno) +{ + int smbios_handle; + u32 dev_handle; + u16 flags; + u64 size = 0; + + dev_handle = ACPI_NFIT_BUILD_DEVICE_HANDLE(dimmno, chan, imc->lmc, + imc->src_id, 0); + + smbios_handle = nfit_get_smbios_id(dev_handle, &flags); + if (smbios_handle == -EOPNOTSUPP) { + pr_warn_once(EDAC_MOD_STR ": Can't find size of NVDIMM. Try enabling CONFIG_ACPI_NFIT\n"); + goto unknown_size; + } + + if (smbios_handle < 0) { + skx_printk(KERN_ERR, "Can't find handle for NVDIMM ADR=%x\n", dev_handle); + goto unknown_size; + } + + if (flags & ACPI_NFIT_MEM_MAP_FAILED) { + skx_printk(KERN_ERR, "NVDIMM ADR=%x is not mapped\n", dev_handle); + goto unknown_size; + } + + size = dmi_memdev_size(smbios_handle); + if (size == ~0ull) + skx_printk(KERN_ERR, "Can't find size for NVDIMM ADR=%x/SMBIOS=%x\n", + dev_handle, smbios_handle); + +unknown_size: + dimm->nr_pages = size >> PAGE_SHIFT; + dimm->grain = 32; + dimm->dtype = DEV_UNKNOWN; + dimm->mtype = MEM_NVDIMM; + dimm->edac_mode = EDAC_SECDED; /* likely better than this */ + + edac_dbg(0, "mc#%d: channel %d, dimm %d, %llu Mb (%u pages)\n", + imc->mc, chan, dimmno, size >> 20, dimm->nr_pages); + + snprintf(dimm->label, sizeof(dimm->label), "CPU_SrcID#%u_MC#%u_Chan#%u_DIMM#%u", + imc->src_id, imc->lmc, chan, dimmno); + + return (size == 0 || size == ~0ull) ? 0 : 1; +} + #define SKX_GET_MTMTR(dev, reg) \ pci_read_config_dword((dev), 0x87c, ®) @@ -399,20 +449,24 @@ static int skx_get_dimm_config(struct mem_ctl_info *mci) { struct skx_pvt *pvt = mci->pvt_info; struct skx_imc *imc = pvt->imc; + u32 mtr, amap, mcddrtcfg; struct dimm_info *dimm; int i, j; - u32 mtr, amap; int ndimms; for (i = 0; i < NUM_CHANNELS; i++) { ndimms = 0; pci_read_config_dword(imc->chan[i].cdev, 0x8C, &amap); + pci_read_config_dword(imc->chan[i].cdev, 0x400, &mcddrtcfg); for (j = 0; j < NUM_DIMMS; j++) { dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers, i, j, 0); pci_read_config_dword(imc->chan[i].cdev, 0x80 + 4*j, &mtr); - ndimms += get_dimm_info(mtr, amap, dimm, imc, i, j); + if (IS_DIMM_PRESENT(mtr)) + ndimms += get_dimm_info(mtr, amap, dimm, imc, i, j); + else if (IS_NVDIMM_PRESENT(mcddrtcfg, j)) + ndimms += get_nvdimm_info(dimm, imc, i, j); } if (ndimms && !skx_check_ecc(imc->chan[0].cdev)) { skx_printk(KERN_ERR, "ECC is disabled on imc %d\n", imc->mc); @@ -468,13 +522,14 @@ static int skx_register_mci(struct skx_imc *imc) pvt = mci->pvt_info; pvt->imc = imc; - mci->ctl_name = kasprintf(GFP_KERNEL, "Skylake Socket#%d IMC#%d", imc->node_id, imc->lmc); + mci->ctl_name = kasprintf(GFP_KERNEL, "Skylake Socket#%d IMC#%d", + imc->node_id, imc->lmc); if (!mci->ctl_name) { rc = -ENOMEM; goto fail0; } - mci->mtype_cap = MEM_FLAG_DDR4; + mci->mtype_cap = MEM_FLAG_DDR4 | MEM_FLAG_NVDIMM; mci->edac_ctl_cap = EDAC_FLAG_NONE; mci->edac_cap = EDAC_FLAG_NONE; mci->mod_name = EDAC_MOD_STR; diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index e35c5e04c46a..6feeacbe4d97 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -32,6 +32,7 @@ static char dmi_ids_string[128] __initdata; static struct dmi_memdev_info { const char *device; const char *bank; + u64 size; /* bytes */ u16 handle; } *dmi_memdev; static int dmi_memdev_nr; @@ -386,6 +387,8 @@ static void __init save_mem_devices(const struct dmi_header *dm, void *v) { const char *d = (const char *)dm; static int nr; + u64 bytes; + u16 size; if (dm->type != DMI_ENTRY_MEM_DEVICE || dm->length < 0x12) return; @@ -396,6 +399,20 @@ static void __init save_mem_devices(const struct dmi_header *dm, void *v) dmi_memdev[nr].handle = get_unaligned(&dm->handle); dmi_memdev[nr].device = dmi_string(dm, d[0x10]); dmi_memdev[nr].bank = dmi_string(dm, d[0x11]); + + size = get_unaligned((u16 *)&d[0xC]); + if (size == 0) + bytes = 0; + else if (size == 0xffff) + bytes = ~0ull; + else if (size & 0x8000) + bytes = (u64)(size & 0x7fff) << 10; + else if (size != 0x7fff) + bytes = (u64)size << 20; + else + bytes = (u64)get_unaligned((u32 *)&d[0x1C]) << 20; + + dmi_memdev[nr].size = bytes; nr++; } @@ -1085,3 +1102,17 @@ void dmi_memdev_name(u16 handle, const char **bank, const char **device) } } EXPORT_SYMBOL_GPL(dmi_memdev_name); + +u64 dmi_memdev_size(u16 handle) +{ + int n; + + if (dmi_memdev) { + for (n = 0; n < dmi_memdev_nr; n++) { + if (handle == dmi_memdev[n].handle) + return dmi_memdev[n].size; + } + } + return ~0ull; +} +EXPORT_SYMBOL_GPL(dmi_memdev_size); diff --git a/include/acpi/nfit.h b/include/acpi/nfit.h new file mode 100644 index 000000000000..86ed07c1200d --- /dev/null +++ b/include/acpi/nfit.h @@ -0,0 +1,18 @@ +/* + * SPDX-License-Identifier: GPL-2.0 + * Copyright (C) 2018 Intel Corporation + */ + +#ifndef __ACPI_NFIT_H +#define __ACPI_NFIT_H + +#if IS_ENABLED(CONFIG_ACPI_NFIT) +int nfit_get_smbios_id(u32 device_handle, u16 *flags); +#else +static inline int nfit_get_smbios_id(u32 device_handle, u16 *flags) +{ + return -EOPNOTSUPP; +} +#endif + +#endif /* __ACPI_NFIT_H */ diff --git a/include/linux/dmi.h b/include/linux/dmi.h index 6a86d8db16d9..c46fdb36700b 100644 --- a/include/linux/dmi.h +++ b/include/linux/dmi.h @@ -114,6 +114,7 @@ extern int dmi_walk(void (*decode)(const struct dmi_header *, void *), void *private_data); extern bool dmi_match(enum dmi_field f, const char *str); extern void dmi_memdev_name(u16 handle, const char **bank, const char **device); +extern u64 dmi_memdev_size(u16 handle); #else @@ -144,6 +145,7 @@ static inline bool dmi_match(enum dmi_field f, const char *str) { return false; } static inline void dmi_memdev_name(u16 handle, const char **bank, const char **device) { } +static inline u64 dmi_memdev_size(u16 handle) { return ~0ul; } static inline const struct dmi_system_id * dmi_first_match(const struct dmi_system_id *list) { return NULL; } diff --git a/include/linux/edac.h b/include/linux/edac.h index cd75c173fd00..bffb97828ed6 100644 --- a/include/linux/edac.h +++ b/include/linux/edac.h @@ -186,6 +186,7 @@ static inline char *mc_event_error_type(const unsigned int err_type) * @MEM_RDDR4: Registered DDR4 RAM * This is a variant of the DDR4 memories. * @MEM_LRDDR4: Load-Reduced DDR4 memory. + * @MEM_NVDIMM: Non-volatile RAM */ enum mem_type { MEM_EMPTY = 0, @@ -209,6 +210,7 @@ enum mem_type { MEM_DDR4, MEM_RDDR4, MEM_LRDDR4, + MEM_NVDIMM, }; #define MEM_FLAG_EMPTY BIT(MEM_EMPTY) @@ -231,6 +233,7 @@ enum mem_type { #define MEM_FLAG_DDR4 BIT(MEM_DDR4) #define MEM_FLAG_RDDR4 BIT(MEM_RDDR4) #define MEM_FLAG_LRDDR4 BIT(MEM_LRDDR4) +#define MEM_FLAG_NVDIMM BIT(MEM_NVDIMM) /** * enum edac-type - Error Detection and Correction capabilities and mode |