diff options
Diffstat (limited to 'drivers/edac/ie31200_edac.c')
-rw-r--r-- | drivers/edac/ie31200_edac.c | 658 |
1 files changed, 658 insertions, 0 deletions
diff --git a/drivers/edac/ie31200_edac.c b/drivers/edac/ie31200_edac.c new file mode 100644 index 000000000..c47963240 --- /dev/null +++ b/drivers/edac/ie31200_edac.c @@ -0,0 +1,658 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Intel E3-1200 + * Copyright (C) 2014 Jason Baron <jbaron@akamai.com> + * + * Support for the E3-1200 processor family. Heavily based on previous + * Intel EDAC drivers. + * + * Since the DRAM controller is on the cpu chip, we can use its PCI device + * id to identify these processors. + * + * PCI DRAM controller device ids (Taken from The PCI ID Repository - https://pci-ids.ucw.cz/) + * + * 0108: Xeon E3-1200 Processor Family DRAM Controller + * 010c: Xeon E3-1200/2nd Generation Core Processor Family DRAM Controller + * 0150: Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller + * 0158: Xeon E3-1200 v2/Ivy Bridge DRAM Controller + * 015c: Xeon E3-1200 v2/3rd Gen Core processor DRAM Controller + * 0c04: Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller + * 0c08: Xeon E3-1200 v3 Processor DRAM Controller + * 1918: Xeon E3-1200 v5 Skylake Host Bridge/DRAM Registers + * 5918: Xeon E3-1200 Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers + * 3e..: 8th/9th Gen Core Processor Host Bridge/DRAM Registers + * + * Based on Intel specification: + * https://www.intel.com/content/dam/www/public/us/en/documents/datasheets/xeon-e3-1200v3-vol-2-datasheet.pdf + * http://www.intel.com/content/www/us/en/processors/xeon/xeon-e3-1200-family-vol-2-datasheet.html + * https://www.intel.com/content/www/us/en/processors/core/7th-gen-core-family-mobile-h-processor-lines-datasheet-vol-2.html + * https://www.intel.com/content/www/us/en/products/docs/processors/core/8th-gen-core-family-datasheet-vol-2.html + * + * According to the above datasheet (p.16): + * " + * 6. Software must not access B0/D0/F0 32-bit memory-mapped registers with + * requests that cross a DW boundary. + * " + * + * Thus, we make use of the explicit: lo_hi_readq(), which breaks the readq into + * 2 readl() calls. This restriction may be lifted in subsequent chip releases, + * but lo_hi_readq() ensures that we are safe across all e3-1200 processors. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/edac.h> + +#include <linux/io-64-nonatomic-lo-hi.h> +#include "edac_module.h" + +#define EDAC_MOD_STR "ie31200_edac" + +#define ie31200_printk(level, fmt, arg...) \ + edac_printk(level, "ie31200", fmt, ##arg) + +#define PCI_DEVICE_ID_INTEL_IE31200_HB_1 0x0108 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_2 0x010c +#define PCI_DEVICE_ID_INTEL_IE31200_HB_3 0x0150 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_4 0x0158 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_5 0x015c +#define PCI_DEVICE_ID_INTEL_IE31200_HB_6 0x0c04 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_7 0x0c08 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_8 0x1918 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_9 0x5918 + +/* Coffee Lake-S */ +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK 0x3e00 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_1 0x3e0f +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_2 0x3e18 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_3 0x3e1f +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_4 0x3e30 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_5 0x3e31 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_6 0x3e32 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_7 0x3e33 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_8 0x3ec2 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_9 0x3ec6 +#define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_10 0x3eca + +/* Test if HB is for Skylake or later. */ +#define DEVICE_ID_SKYLAKE_OR_LATER(did) \ + (((did) == PCI_DEVICE_ID_INTEL_IE31200_HB_8) || \ + ((did) == PCI_DEVICE_ID_INTEL_IE31200_HB_9) || \ + (((did) & PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK) == \ + PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK)) + +#define IE31200_DIMMS 4 +#define IE31200_RANKS 8 +#define IE31200_RANKS_PER_CHANNEL 4 +#define IE31200_DIMMS_PER_CHANNEL 2 +#define IE31200_CHANNELS 2 + +/* Intel IE31200 register addresses - device 0 function 0 - DRAM Controller */ +#define IE31200_MCHBAR_LOW 0x48 +#define IE31200_MCHBAR_HIGH 0x4c +#define IE31200_MCHBAR_MASK GENMASK_ULL(38, 15) +#define IE31200_MMR_WINDOW_SIZE BIT(15) + +/* + * Error Status Register (16b) + * + * 15 reserved + * 14 Isochronous TBWRR Run Behind FIFO Full + * (ITCV) + * 13 Isochronous TBWRR Run Behind FIFO Put + * (ITSTV) + * 12 reserved + * 11 MCH Thermal Sensor Event + * for SMI/SCI/SERR (GTSE) + * 10 reserved + * 9 LOCK to non-DRAM Memory Flag (LCKF) + * 8 reserved + * 7 DRAM Throttle Flag (DTF) + * 6:2 reserved + * 1 Multi-bit DRAM ECC Error Flag (DMERR) + * 0 Single-bit DRAM ECC Error Flag (DSERR) + */ +#define IE31200_ERRSTS 0xc8 +#define IE31200_ERRSTS_UE BIT(1) +#define IE31200_ERRSTS_CE BIT(0) +#define IE31200_ERRSTS_BITS (IE31200_ERRSTS_UE | IE31200_ERRSTS_CE) + +/* + * Channel 0 ECC Error Log (64b) + * + * 63:48 Error Column Address (ERRCOL) + * 47:32 Error Row Address (ERRROW) + * 31:29 Error Bank Address (ERRBANK) + * 28:27 Error Rank Address (ERRRANK) + * 26:24 reserved + * 23:16 Error Syndrome (ERRSYND) + * 15: 2 reserved + * 1 Multiple Bit Error Status (MERRSTS) + * 0 Correctable Error Status (CERRSTS) + */ + +#define IE31200_C0ECCERRLOG 0x40c8 +#define IE31200_C1ECCERRLOG 0x44c8 +#define IE31200_C0ECCERRLOG_SKL 0x4048 +#define IE31200_C1ECCERRLOG_SKL 0x4448 +#define IE31200_ECCERRLOG_CE BIT(0) +#define IE31200_ECCERRLOG_UE BIT(1) +#define IE31200_ECCERRLOG_RANK_BITS GENMASK_ULL(28, 27) +#define IE31200_ECCERRLOG_RANK_SHIFT 27 +#define IE31200_ECCERRLOG_SYNDROME_BITS GENMASK_ULL(23, 16) +#define IE31200_ECCERRLOG_SYNDROME_SHIFT 16 + +#define IE31200_ECCERRLOG_SYNDROME(log) \ + ((log & IE31200_ECCERRLOG_SYNDROME_BITS) >> \ + IE31200_ECCERRLOG_SYNDROME_SHIFT) + +#define IE31200_CAPID0 0xe4 +#define IE31200_CAPID0_PDCD BIT(4) +#define IE31200_CAPID0_DDPCD BIT(6) +#define IE31200_CAPID0_ECC BIT(1) + +#define IE31200_MAD_DIMM_0_OFFSET 0x5004 +#define IE31200_MAD_DIMM_0_OFFSET_SKL 0x500C +#define IE31200_MAD_DIMM_SIZE GENMASK_ULL(7, 0) +#define IE31200_MAD_DIMM_A_RANK BIT(17) +#define IE31200_MAD_DIMM_A_RANK_SHIFT 17 +#define IE31200_MAD_DIMM_A_RANK_SKL BIT(10) +#define IE31200_MAD_DIMM_A_RANK_SKL_SHIFT 10 +#define IE31200_MAD_DIMM_A_WIDTH BIT(19) +#define IE31200_MAD_DIMM_A_WIDTH_SHIFT 19 +#define IE31200_MAD_DIMM_A_WIDTH_SKL GENMASK_ULL(9, 8) +#define IE31200_MAD_DIMM_A_WIDTH_SKL_SHIFT 8 + +/* Skylake reports 1GB increments, everything else is 256MB */ +#define IE31200_PAGES(n, skl) \ + (n << (28 + (2 * skl) - PAGE_SHIFT)) + +static int nr_channels; +static struct pci_dev *mci_pdev; +static int ie31200_registered = 1; + +struct ie31200_priv { + void __iomem *window; + void __iomem *c0errlog; + void __iomem *c1errlog; +}; + +enum ie31200_chips { + IE31200 = 0, +}; + +struct ie31200_dev_info { + const char *ctl_name; +}; + +struct ie31200_error_info { + u16 errsts; + u16 errsts2; + u64 eccerrlog[IE31200_CHANNELS]; +}; + +static const struct ie31200_dev_info ie31200_devs[] = { + [IE31200] = { + .ctl_name = "IE31200" + }, +}; + +struct dimm_data { + u8 size; /* in multiples of 256MB, except Skylake is 1GB */ + u8 dual_rank : 1, + x16_width : 2; /* 0 means x8 width */ +}; + +static int how_many_channels(struct pci_dev *pdev) +{ + int n_channels; + unsigned char capid0_2b; /* 2nd byte of CAPID0 */ + + pci_read_config_byte(pdev, IE31200_CAPID0 + 1, &capid0_2b); + + /* check PDCD: Dual Channel Disable */ + if (capid0_2b & IE31200_CAPID0_PDCD) { + edac_dbg(0, "In single channel mode\n"); + n_channels = 1; + } else { + edac_dbg(0, "In dual channel mode\n"); + n_channels = 2; + } + + /* check DDPCD - check if both channels are filled */ + if (capid0_2b & IE31200_CAPID0_DDPCD) + edac_dbg(0, "2 DIMMS per channel disabled\n"); + else + edac_dbg(0, "2 DIMMS per channel enabled\n"); + + return n_channels; +} + +static bool ecc_capable(struct pci_dev *pdev) +{ + unsigned char capid0_4b; /* 4th byte of CAPID0 */ + + pci_read_config_byte(pdev, IE31200_CAPID0 + 3, &capid0_4b); + if (capid0_4b & IE31200_CAPID0_ECC) + return false; + return true; +} + +static int eccerrlog_row(u64 log) +{ + return ((log & IE31200_ECCERRLOG_RANK_BITS) >> + IE31200_ECCERRLOG_RANK_SHIFT); +} + +static void ie31200_clear_error_info(struct mem_ctl_info *mci) +{ + /* + * Clear any error bits. + * (Yes, we really clear bits by writing 1 to them.) + */ + pci_write_bits16(to_pci_dev(mci->pdev), IE31200_ERRSTS, + IE31200_ERRSTS_BITS, IE31200_ERRSTS_BITS); +} + +static void ie31200_get_and_clear_error_info(struct mem_ctl_info *mci, + struct ie31200_error_info *info) +{ + struct pci_dev *pdev; + struct ie31200_priv *priv = mci->pvt_info; + + pdev = to_pci_dev(mci->pdev); + + /* + * This is a mess because there is no atomic way to read all the + * registers at once and the registers can transition from CE being + * overwritten by UE. + */ + pci_read_config_word(pdev, IE31200_ERRSTS, &info->errsts); + if (!(info->errsts & IE31200_ERRSTS_BITS)) + return; + + info->eccerrlog[0] = lo_hi_readq(priv->c0errlog); + if (nr_channels == 2) + info->eccerrlog[1] = lo_hi_readq(priv->c1errlog); + + pci_read_config_word(pdev, IE31200_ERRSTS, &info->errsts2); + + /* + * If the error is the same for both reads then the first set + * of reads is valid. If there is a change then there is a CE + * with no info and the second set of reads is valid and + * should be UE info. + */ + if ((info->errsts ^ info->errsts2) & IE31200_ERRSTS_BITS) { + info->eccerrlog[0] = lo_hi_readq(priv->c0errlog); + if (nr_channels == 2) + info->eccerrlog[1] = + lo_hi_readq(priv->c1errlog); + } + + ie31200_clear_error_info(mci); +} + +static void ie31200_process_error_info(struct mem_ctl_info *mci, + struct ie31200_error_info *info) +{ + int channel; + u64 log; + + if (!(info->errsts & IE31200_ERRSTS_BITS)) + return; + + if ((info->errsts ^ info->errsts2) & IE31200_ERRSTS_BITS) { + edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, 0, 0, 0, + -1, -1, -1, "UE overwrote CE", ""); + info->errsts = info->errsts2; + } + + for (channel = 0; channel < nr_channels; channel++) { + log = info->eccerrlog[channel]; + if (log & IE31200_ECCERRLOG_UE) { + edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, + 0, 0, 0, + eccerrlog_row(log), + channel, -1, + "ie31200 UE", ""); + } else if (log & IE31200_ECCERRLOG_CE) { + edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, + 0, 0, + IE31200_ECCERRLOG_SYNDROME(log), + eccerrlog_row(log), + channel, -1, + "ie31200 CE", ""); + } + } +} + +static void ie31200_check(struct mem_ctl_info *mci) +{ + struct ie31200_error_info info; + + edac_dbg(1, "MC%d\n", mci->mc_idx); + ie31200_get_and_clear_error_info(mci, &info); + ie31200_process_error_info(mci, &info); +} + +static void __iomem *ie31200_map_mchbar(struct pci_dev *pdev) +{ + union { + u64 mchbar; + struct { + u32 mchbar_low; + u32 mchbar_high; + }; + } u; + void __iomem *window; + + pci_read_config_dword(pdev, IE31200_MCHBAR_LOW, &u.mchbar_low); + pci_read_config_dword(pdev, IE31200_MCHBAR_HIGH, &u.mchbar_high); + u.mchbar &= IE31200_MCHBAR_MASK; + + if (u.mchbar != (resource_size_t)u.mchbar) { + ie31200_printk(KERN_ERR, "mmio space beyond accessible range (0x%llx)\n", + (unsigned long long)u.mchbar); + return NULL; + } + + window = ioremap(u.mchbar, IE31200_MMR_WINDOW_SIZE); + if (!window) + ie31200_printk(KERN_ERR, "Cannot map mmio space at 0x%llx\n", + (unsigned long long)u.mchbar); + + return window; +} + +static void __skl_populate_dimm_info(struct dimm_data *dd, u32 addr_decode, + int chan) +{ + dd->size = (addr_decode >> (chan << 4)) & IE31200_MAD_DIMM_SIZE; + dd->dual_rank = (addr_decode & (IE31200_MAD_DIMM_A_RANK_SKL << (chan << 4))) ? 1 : 0; + dd->x16_width = ((addr_decode & (IE31200_MAD_DIMM_A_WIDTH_SKL << (chan << 4))) >> + (IE31200_MAD_DIMM_A_WIDTH_SKL_SHIFT + (chan << 4))); +} + +static void __populate_dimm_info(struct dimm_data *dd, u32 addr_decode, + int chan) +{ + dd->size = (addr_decode >> (chan << 3)) & IE31200_MAD_DIMM_SIZE; + dd->dual_rank = (addr_decode & (IE31200_MAD_DIMM_A_RANK << chan)) ? 1 : 0; + dd->x16_width = (addr_decode & (IE31200_MAD_DIMM_A_WIDTH << chan)) ? 1 : 0; +} + +static void populate_dimm_info(struct dimm_data *dd, u32 addr_decode, int chan, + bool skl) +{ + if (skl) + __skl_populate_dimm_info(dd, addr_decode, chan); + else + __populate_dimm_info(dd, addr_decode, chan); +} + + +static int ie31200_probe1(struct pci_dev *pdev, int dev_idx) +{ + int i, j, ret; + struct mem_ctl_info *mci = NULL; + struct edac_mc_layer layers[2]; + struct dimm_data dimm_info[IE31200_CHANNELS][IE31200_DIMMS_PER_CHANNEL]; + void __iomem *window; + struct ie31200_priv *priv; + u32 addr_decode, mad_offset; + + /* + * Kaby Lake, Coffee Lake seem to work like Skylake. Please re-visit + * this logic when adding new CPU support. + */ + bool skl = DEVICE_ID_SKYLAKE_OR_LATER(pdev->device); + + edac_dbg(0, "MC:\n"); + + if (!ecc_capable(pdev)) { + ie31200_printk(KERN_INFO, "No ECC support\n"); + return -ENODEV; + } + + nr_channels = how_many_channels(pdev); + layers[0].type = EDAC_MC_LAYER_CHIP_SELECT; + layers[0].size = IE31200_DIMMS; + layers[0].is_virt_csrow = true; + layers[1].type = EDAC_MC_LAYER_CHANNEL; + layers[1].size = nr_channels; + layers[1].is_virt_csrow = false; + mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, + sizeof(struct ie31200_priv)); + if (!mci) + return -ENOMEM; + + window = ie31200_map_mchbar(pdev); + if (!window) { + ret = -ENODEV; + goto fail_free; + } + + edac_dbg(3, "MC: init mci\n"); + mci->pdev = &pdev->dev; + if (skl) + mci->mtype_cap = MEM_FLAG_DDR4; + else + mci->mtype_cap = MEM_FLAG_DDR3; + mci->edac_ctl_cap = EDAC_FLAG_SECDED; + mci->edac_cap = EDAC_FLAG_SECDED; + mci->mod_name = EDAC_MOD_STR; + mci->ctl_name = ie31200_devs[dev_idx].ctl_name; + mci->dev_name = pci_name(pdev); + mci->edac_check = ie31200_check; + mci->ctl_page_to_phys = NULL; + priv = mci->pvt_info; + priv->window = window; + if (skl) { + priv->c0errlog = window + IE31200_C0ECCERRLOG_SKL; + priv->c1errlog = window + IE31200_C1ECCERRLOG_SKL; + mad_offset = IE31200_MAD_DIMM_0_OFFSET_SKL; + } else { + priv->c0errlog = window + IE31200_C0ECCERRLOG; + priv->c1errlog = window + IE31200_C1ECCERRLOG; + mad_offset = IE31200_MAD_DIMM_0_OFFSET; + } + + /* populate DIMM info */ + for (i = 0; i < IE31200_CHANNELS; i++) { + addr_decode = readl(window + mad_offset + + (i * 4)); + edac_dbg(0, "addr_decode: 0x%x\n", addr_decode); + for (j = 0; j < IE31200_DIMMS_PER_CHANNEL; j++) { + populate_dimm_info(&dimm_info[i][j], addr_decode, j, + skl); + edac_dbg(0, "size: 0x%x, rank: %d, width: %d\n", + dimm_info[i][j].size, + dimm_info[i][j].dual_rank, + dimm_info[i][j].x16_width); + } + } + + /* + * The dram rank boundary (DRB) reg values are boundary addresses + * for each DRAM rank with a granularity of 64MB. DRB regs are + * cumulative; the last one will contain the total memory + * contained in all ranks. + */ + for (i = 0; i < IE31200_DIMMS_PER_CHANNEL; i++) { + for (j = 0; j < IE31200_CHANNELS; j++) { + struct dimm_info *dimm; + unsigned long nr_pages; + + nr_pages = IE31200_PAGES(dimm_info[j][i].size, skl); + if (nr_pages == 0) + continue; + + if (dimm_info[j][i].dual_rank) { + nr_pages = nr_pages / 2; + dimm = edac_get_dimm(mci, (i * 2) + 1, j, 0); + dimm->nr_pages = nr_pages; + edac_dbg(0, "set nr pages: 0x%lx\n", nr_pages); + dimm->grain = 8; /* just a guess */ + if (skl) + dimm->mtype = MEM_DDR4; + else + dimm->mtype = MEM_DDR3; + dimm->dtype = DEV_UNKNOWN; + dimm->edac_mode = EDAC_UNKNOWN; + } + dimm = edac_get_dimm(mci, i * 2, j, 0); + dimm->nr_pages = nr_pages; + edac_dbg(0, "set nr pages: 0x%lx\n", nr_pages); + dimm->grain = 8; /* same guess */ + if (skl) + dimm->mtype = MEM_DDR4; + else + dimm->mtype = MEM_DDR3; + dimm->dtype = DEV_UNKNOWN; + dimm->edac_mode = EDAC_UNKNOWN; + } + } + + ie31200_clear_error_info(mci); + + if (edac_mc_add_mc(mci)) { + edac_dbg(3, "MC: failed edac_mc_add_mc()\n"); + ret = -ENODEV; + goto fail_unmap; + } + + /* get this far and it's successful */ + edac_dbg(3, "MC: success\n"); + return 0; + +fail_unmap: + iounmap(window); + +fail_free: + edac_mc_free(mci); + + return ret; +} + +static int ie31200_init_one(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + int rc; + + edac_dbg(0, "MC:\n"); + if (pci_enable_device(pdev) < 0) + return -EIO; + rc = ie31200_probe1(pdev, ent->driver_data); + if (rc == 0 && !mci_pdev) + mci_pdev = pci_dev_get(pdev); + + return rc; +} + +static void ie31200_remove_one(struct pci_dev *pdev) +{ + struct mem_ctl_info *mci; + struct ie31200_priv *priv; + + edac_dbg(0, "\n"); + pci_dev_put(mci_pdev); + mci_pdev = NULL; + mci = edac_mc_del_mc(&pdev->dev); + if (!mci) + return; + priv = mci->pvt_info; + iounmap(priv->window); + edac_mc_free(mci); +} + +static const struct pci_device_id ie31200_pci_tbl[] = { + { PCI_VEND_DEV(INTEL, IE31200_HB_1), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_2), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_3), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_4), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_5), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_6), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_7), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_8), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_9), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_1), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_2), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_3), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_4), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_5), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_6), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_7), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_8), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_9), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { PCI_VEND_DEV(INTEL, IE31200_HB_CFL_10), PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 }, + { 0, } /* 0 terminated list. */ +}; +MODULE_DEVICE_TABLE(pci, ie31200_pci_tbl); + +static struct pci_driver ie31200_driver = { + .name = EDAC_MOD_STR, + .probe = ie31200_init_one, + .remove = ie31200_remove_one, + .id_table = ie31200_pci_tbl, +}; + +static int __init ie31200_init(void) +{ + int pci_rc, i; + + edac_dbg(3, "MC:\n"); + /* Ensure that the OPSTATE is set correctly for POLL or NMI */ + opstate_init(); + + pci_rc = pci_register_driver(&ie31200_driver); + if (pci_rc < 0) + goto fail0; + + if (!mci_pdev) { + ie31200_registered = 0; + for (i = 0; ie31200_pci_tbl[i].vendor != 0; i++) { + mci_pdev = pci_get_device(ie31200_pci_tbl[i].vendor, + ie31200_pci_tbl[i].device, + NULL); + if (mci_pdev) + break; + } + if (!mci_pdev) { + edac_dbg(0, "ie31200 pci_get_device fail\n"); + pci_rc = -ENODEV; + goto fail1; + } + pci_rc = ie31200_init_one(mci_pdev, &ie31200_pci_tbl[i]); + if (pci_rc < 0) { + edac_dbg(0, "ie31200 init fail\n"); + pci_rc = -ENODEV; + goto fail1; + } + } + return 0; + +fail1: + pci_unregister_driver(&ie31200_driver); +fail0: + pci_dev_put(mci_pdev); + + return pci_rc; +} + +static void __exit ie31200_exit(void) +{ + edac_dbg(3, "MC:\n"); + pci_unregister_driver(&ie31200_driver); + if (!ie31200_registered) + ie31200_remove_one(mci_pdev); +} + +module_init(ie31200_init); +module_exit(ie31200_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Jason Baron <jbaron@akamai.com>"); +MODULE_DESCRIPTION("MC support for Intel Processor E31200 memory hub controllers"); |