diff options
Diffstat (limited to 'drivers/edac/amd8111_edac.c')
| -rw-r--r-- | drivers/edac/amd8111_edac.c | 597 |
1 files changed, 0 insertions, 597 deletions
diff --git a/drivers/edac/amd8111_edac.c b/drivers/edac/amd8111_edac.c deleted file mode 100644 index ca718f63fcbc..000000000000 --- a/drivers/edac/amd8111_edac.c +++ /dev/null @@ -1,597 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * amd8111_edac.c, AMD8111 Hyper Transport chip EDAC kernel module - * - * Copyright (c) 2008 Wind River Systems, Inc. - * - * Authors: Cao Qingtao <qingtao.cao@windriver.com> - * Benjamin Walsh <benjamin.walsh@windriver.com> - * Hu Yongqi <yongqi.hu@windriver.com> - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/bitops.h> -#include <linux/edac.h> -#include <linux/pci_ids.h> -#include <asm/io.h> - -#include "edac_module.h" -#include "amd8111_edac.h" - -#define AMD8111_EDAC_REVISION " Ver: 1.0.0" -#define AMD8111_EDAC_MOD_STR "amd8111_edac" - -#define PCI_DEVICE_ID_AMD_8111_PCI 0x7460 - -enum amd8111_edac_devs { - LPC_BRIDGE = 0, -}; - -enum amd8111_edac_pcis { - PCI_BRIDGE = 0, -}; - -/* Wrapper functions for accessing PCI configuration space */ -static int edac_pci_read_dword(struct pci_dev *dev, int reg, u32 *val32) -{ - int ret; - - ret = pci_read_config_dword(dev, reg, val32); - if (ret != 0) - printk(KERN_ERR AMD8111_EDAC_MOD_STR - " PCI Access Read Error at 0x%x\n", reg); - - return ret; -} - -static void edac_pci_read_byte(struct pci_dev *dev, int reg, u8 *val8) -{ - int ret; - - ret = pci_read_config_byte(dev, reg, val8); - if (ret != 0) - printk(KERN_ERR AMD8111_EDAC_MOD_STR - " PCI Access Read Error at 0x%x\n", reg); -} - -static void edac_pci_write_dword(struct pci_dev *dev, int reg, u32 val32) -{ - int ret; - - ret = pci_write_config_dword(dev, reg, val32); - if (ret != 0) - printk(KERN_ERR AMD8111_EDAC_MOD_STR - " PCI Access Write Error at 0x%x\n", reg); -} - -static void edac_pci_write_byte(struct pci_dev *dev, int reg, u8 val8) -{ - int ret; - - ret = pci_write_config_byte(dev, reg, val8); - if (ret != 0) - printk(KERN_ERR AMD8111_EDAC_MOD_STR - " PCI Access Write Error at 0x%x\n", reg); -} - -/* - * device-specific methods for amd8111 PCI Bridge Controller - * - * Error Reporting and Handling for amd8111 chipset could be found - * in its datasheet 3.1.2 section, P37 - */ -static void amd8111_pci_bridge_init(struct amd8111_pci_info *pci_info) -{ - u32 val32; - struct pci_dev *dev = pci_info->dev; - - /* First clear error detection flags on the host interface */ - - /* Clear SSE/SMA/STA flags in the global status register*/ - edac_pci_read_dword(dev, REG_PCI_STSCMD, &val32); - if (val32 & PCI_STSCMD_CLEAR_MASK) - edac_pci_write_dword(dev, REG_PCI_STSCMD, val32); - - /* Clear CRC and Link Fail flags in HT Link Control reg */ - edac_pci_read_dword(dev, REG_HT_LINK, &val32); - if (val32 & HT_LINK_CLEAR_MASK) - edac_pci_write_dword(dev, REG_HT_LINK, val32); - - /* Second clear all fault on the secondary interface */ - - /* Clear error flags in the memory-base limit reg. */ - edac_pci_read_dword(dev, REG_MEM_LIM, &val32); - if (val32 & MEM_LIMIT_CLEAR_MASK) - edac_pci_write_dword(dev, REG_MEM_LIM, val32); - - /* Clear Discard Timer Expired flag in Interrupt/Bridge Control reg */ - edac_pci_read_dword(dev, REG_PCI_INTBRG_CTRL, &val32); - if (val32 & PCI_INTBRG_CTRL_CLEAR_MASK) - edac_pci_write_dword(dev, REG_PCI_INTBRG_CTRL, val32); - - /* Last enable error detections */ - if (edac_op_state == EDAC_OPSTATE_POLL) { - /* Enable System Error reporting in global status register */ - edac_pci_read_dword(dev, REG_PCI_STSCMD, &val32); - val32 |= PCI_STSCMD_SERREN; - edac_pci_write_dword(dev, REG_PCI_STSCMD, val32); - - /* Enable CRC Sync flood packets to HyperTransport Link */ - edac_pci_read_dword(dev, REG_HT_LINK, &val32); - val32 |= HT_LINK_CRCFEN; - edac_pci_write_dword(dev, REG_HT_LINK, val32); - - /* Enable SSE reporting etc in Interrupt control reg */ - edac_pci_read_dword(dev, REG_PCI_INTBRG_CTRL, &val32); - val32 |= PCI_INTBRG_CTRL_POLL_MASK; - edac_pci_write_dword(dev, REG_PCI_INTBRG_CTRL, val32); - } -} - -static void amd8111_pci_bridge_exit(struct amd8111_pci_info *pci_info) -{ - u32 val32; - struct pci_dev *dev = pci_info->dev; - - if (edac_op_state == EDAC_OPSTATE_POLL) { - /* Disable System Error reporting */ - edac_pci_read_dword(dev, REG_PCI_STSCMD, &val32); - val32 &= ~PCI_STSCMD_SERREN; - edac_pci_write_dword(dev, REG_PCI_STSCMD, val32); - - /* Disable CRC flood packets */ - edac_pci_read_dword(dev, REG_HT_LINK, &val32); - val32 &= ~HT_LINK_CRCFEN; - edac_pci_write_dword(dev, REG_HT_LINK, val32); - - /* Disable DTSERREN/MARSP/SERREN in Interrupt Control reg */ - edac_pci_read_dword(dev, REG_PCI_INTBRG_CTRL, &val32); - val32 &= ~PCI_INTBRG_CTRL_POLL_MASK; - edac_pci_write_dword(dev, REG_PCI_INTBRG_CTRL, val32); - } -} - -static void amd8111_pci_bridge_check(struct edac_pci_ctl_info *edac_dev) -{ - struct amd8111_pci_info *pci_info = edac_dev->pvt_info; - struct pci_dev *dev = pci_info->dev; - u32 val32; - - /* Check out PCI Bridge Status and Command Register */ - edac_pci_read_dword(dev, REG_PCI_STSCMD, &val32); - if (val32 & PCI_STSCMD_CLEAR_MASK) { - printk(KERN_INFO "Error(s) in PCI bridge status and command" - "register on device %s\n", pci_info->ctl_name); - printk(KERN_INFO "SSE: %d, RMA: %d, RTA: %d\n", - (val32 & PCI_STSCMD_SSE) != 0, - (val32 & PCI_STSCMD_RMA) != 0, - (val32 & PCI_STSCMD_RTA) != 0); - - val32 |= PCI_STSCMD_CLEAR_MASK; - edac_pci_write_dword(dev, REG_PCI_STSCMD, val32); - - edac_pci_handle_npe(edac_dev, edac_dev->ctl_name); - } - - /* Check out HyperTransport Link Control Register */ - edac_pci_read_dword(dev, REG_HT_LINK, &val32); - if (val32 & HT_LINK_LKFAIL) { - printk(KERN_INFO "Error(s) in hypertransport link control" - "register on device %s\n", pci_info->ctl_name); - printk(KERN_INFO "LKFAIL: %d\n", - (val32 & HT_LINK_LKFAIL) != 0); - - val32 |= HT_LINK_LKFAIL; - edac_pci_write_dword(dev, REG_HT_LINK, val32); - - edac_pci_handle_npe(edac_dev, edac_dev->ctl_name); - } - - /* Check out PCI Interrupt and Bridge Control Register */ - edac_pci_read_dword(dev, REG_PCI_INTBRG_CTRL, &val32); - if (val32 & PCI_INTBRG_CTRL_DTSTAT) { - printk(KERN_INFO "Error(s) in PCI interrupt and bridge control" - "register on device %s\n", pci_info->ctl_name); - printk(KERN_INFO "DTSTAT: %d\n", - (val32 & PCI_INTBRG_CTRL_DTSTAT) != 0); - - val32 |= PCI_INTBRG_CTRL_DTSTAT; - edac_pci_write_dword(dev, REG_PCI_INTBRG_CTRL, val32); - - edac_pci_handle_npe(edac_dev, edac_dev->ctl_name); - } - - /* Check out PCI Bridge Memory Base-Limit Register */ - edac_pci_read_dword(dev, REG_MEM_LIM, &val32); - if (val32 & MEM_LIMIT_CLEAR_MASK) { - printk(KERN_INFO - "Error(s) in mem limit register on %s device\n", - pci_info->ctl_name); - printk(KERN_INFO "DPE: %d, RSE: %d, RMA: %d\n" - "RTA: %d, STA: %d, MDPE: %d\n", - (val32 & MEM_LIMIT_DPE) != 0, - (val32 & MEM_LIMIT_RSE) != 0, - (val32 & MEM_LIMIT_RMA) != 0, - (val32 & MEM_LIMIT_RTA) != 0, - (val32 & MEM_LIMIT_STA) != 0, - (val32 & MEM_LIMIT_MDPE) != 0); - - val32 |= MEM_LIMIT_CLEAR_MASK; - edac_pci_write_dword(dev, REG_MEM_LIM, val32); - - edac_pci_handle_npe(edac_dev, edac_dev->ctl_name); - } -} - -static struct resource *legacy_io_res; -static int at_compat_reg_broken; -#define LEGACY_NR_PORTS 1 - -/* device-specific methods for amd8111 LPC Bridge device */ -static void amd8111_lpc_bridge_init(struct amd8111_dev_info *dev_info) -{ - u8 val8; - struct pci_dev *dev = dev_info->dev; - - /* First clear REG_AT_COMPAT[SERR, IOCHK] if necessary */ - legacy_io_res = request_region(REG_AT_COMPAT, LEGACY_NR_PORTS, - AMD8111_EDAC_MOD_STR); - if (!legacy_io_res) - printk(KERN_INFO "%s: failed to request legacy I/O region " - "start %d, len %d\n", __func__, - REG_AT_COMPAT, LEGACY_NR_PORTS); - else { - val8 = __do_inb(REG_AT_COMPAT); - if (val8 == 0xff) { /* buggy port */ - printk(KERN_INFO "%s: port %d is buggy, not supported" - " by hardware?\n", __func__, REG_AT_COMPAT); - at_compat_reg_broken = 1; - release_region(REG_AT_COMPAT, LEGACY_NR_PORTS); - legacy_io_res = NULL; - } else { - u8 out8 = 0; - if (val8 & AT_COMPAT_SERR) - out8 = AT_COMPAT_CLRSERR; - if (val8 & AT_COMPAT_IOCHK) - out8 |= AT_COMPAT_CLRIOCHK; - if (out8 > 0) - __do_outb(out8, REG_AT_COMPAT); - } - } - - /* Second clear error flags on LPC bridge */ - edac_pci_read_byte(dev, REG_IO_CTRL_1, &val8); - if (val8 & IO_CTRL_1_CLEAR_MASK) - edac_pci_write_byte(dev, REG_IO_CTRL_1, val8); -} - -static void amd8111_lpc_bridge_exit(struct amd8111_dev_info *dev_info) -{ - if (legacy_io_res) - release_region(REG_AT_COMPAT, LEGACY_NR_PORTS); -} - -static void amd8111_lpc_bridge_check(struct edac_device_ctl_info *edac_dev) -{ - struct amd8111_dev_info *dev_info = edac_dev->pvt_info; - struct pci_dev *dev = dev_info->dev; - u8 val8; - - edac_pci_read_byte(dev, REG_IO_CTRL_1, &val8); - if (val8 & IO_CTRL_1_CLEAR_MASK) { - printk(KERN_INFO - "Error(s) in IO control register on %s device\n", - dev_info->ctl_name); - printk(KERN_INFO "LPC ERR: %d, PW2LPC: %d\n", - (val8 & IO_CTRL_1_LPC_ERR) != 0, - (val8 & IO_CTRL_1_PW2LPC) != 0); - - val8 |= IO_CTRL_1_CLEAR_MASK; - edac_pci_write_byte(dev, REG_IO_CTRL_1, val8); - - edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name); - } - - if (at_compat_reg_broken == 0) { - u8 out8 = 0; - val8 = __do_inb(REG_AT_COMPAT); - if (val8 & AT_COMPAT_SERR) - out8 = AT_COMPAT_CLRSERR; - if (val8 & AT_COMPAT_IOCHK) - out8 |= AT_COMPAT_CLRIOCHK; - if (out8 > 0) { - __do_outb(out8, REG_AT_COMPAT); - edac_device_handle_ue(edac_dev, 0, 0, - edac_dev->ctl_name); - } - } -} - -/* General devices represented by edac_device_ctl_info */ -static struct amd8111_dev_info amd8111_devices[] = { - [LPC_BRIDGE] = { - .err_dev = PCI_DEVICE_ID_AMD_8111_LPC, - .ctl_name = "lpc", - .init = amd8111_lpc_bridge_init, - .exit = amd8111_lpc_bridge_exit, - .check = amd8111_lpc_bridge_check, - }, - {0}, -}; - -/* PCI controllers represented by edac_pci_ctl_info */ -static struct amd8111_pci_info amd8111_pcis[] = { - [PCI_BRIDGE] = { - .err_dev = PCI_DEVICE_ID_AMD_8111_PCI, - .ctl_name = "AMD8111_PCI_Controller", - .init = amd8111_pci_bridge_init, - .exit = amd8111_pci_bridge_exit, - .check = amd8111_pci_bridge_check, - }, - {0}, -}; - -static int amd8111_dev_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - struct amd8111_dev_info *dev_info = &amd8111_devices[id->driver_data]; - int ret = -ENODEV; - - dev_info->dev = pci_get_device(PCI_VENDOR_ID_AMD, - dev_info->err_dev, NULL); - - if (!dev_info->dev) { - printk(KERN_ERR "EDAC device not found:" - "vendor %x, device %x, name %s\n", - PCI_VENDOR_ID_AMD, dev_info->err_dev, - dev_info->ctl_name); - goto err; - } - - if (pci_enable_device(dev_info->dev)) { - printk(KERN_ERR "failed to enable:" - "vendor %x, device %x, name %s\n", - PCI_VENDOR_ID_AMD, dev_info->err_dev, - dev_info->ctl_name); - goto err_dev_put; - } - - /* - * we do not allocate extra private structure for - * edac_device_ctl_info, but make use of existing - * one instead. - */ - dev_info->edac_idx = edac_device_alloc_index(); - dev_info->edac_dev = - edac_device_alloc_ctl_info(0, dev_info->ctl_name, 1, - NULL, 0, 0, - NULL, 0, dev_info->edac_idx); - if (!dev_info->edac_dev) { - ret = -ENOMEM; - goto err_dev_put; - } - - dev_info->edac_dev->pvt_info = dev_info; - dev_info->edac_dev->dev = &dev_info->dev->dev; - dev_info->edac_dev->mod_name = AMD8111_EDAC_MOD_STR; - dev_info->edac_dev->ctl_name = dev_info->ctl_name; - dev_info->edac_dev->dev_name = dev_name(&dev_info->dev->dev); - - if (edac_op_state == EDAC_OPSTATE_POLL) - dev_info->edac_dev->edac_check = dev_info->check; - - if (dev_info->init) - dev_info->init(dev_info); - - if (edac_device_add_device(dev_info->edac_dev) > 0) { - printk(KERN_ERR "failed to add edac_dev for %s\n", - dev_info->ctl_name); - goto err_edac_free_ctl; - } - - printk(KERN_INFO "added one edac_dev on AMD8111 " - "vendor %x, device %x, name %s\n", - PCI_VENDOR_ID_AMD, dev_info->err_dev, - dev_info->ctl_name); - - return 0; - -err_edac_free_ctl: - edac_device_free_ctl_info(dev_info->edac_dev); -err_dev_put: - pci_dev_put(dev_info->dev); -err: - return ret; -} - -static void amd8111_dev_remove(struct pci_dev *dev) -{ - struct amd8111_dev_info *dev_info; - - for (dev_info = amd8111_devices; dev_info->err_dev; dev_info++) - if (dev_info->dev->device == dev->device) - break; - - if (!dev_info->err_dev) /* should never happen */ - return; - - if (dev_info->edac_dev) { - edac_device_del_device(dev_info->edac_dev->dev); - edac_device_free_ctl_info(dev_info->edac_dev); - } - - if (dev_info->exit) - dev_info->exit(dev_info); - - pci_dev_put(dev_info->dev); -} - -static int amd8111_pci_probe(struct pci_dev *dev, - const struct pci_device_id *id) -{ - struct amd8111_pci_info *pci_info = &amd8111_pcis[id->driver_data]; - int ret = -ENODEV; - - pci_info->dev = pci_get_device(PCI_VENDOR_ID_AMD, - pci_info->err_dev, NULL); - - if (!pci_info->dev) { - printk(KERN_ERR "EDAC device not found:" - "vendor %x, device %x, name %s\n", - PCI_VENDOR_ID_AMD, pci_info->err_dev, - pci_info->ctl_name); - goto err; - } - - if (pci_enable_device(pci_info->dev)) { - printk(KERN_ERR "failed to enable:" - "vendor %x, device %x, name %s\n", - PCI_VENDOR_ID_AMD, pci_info->err_dev, - pci_info->ctl_name); - goto err_dev_put; - } - - /* - * we do not allocate extra private structure for - * edac_pci_ctl_info, but make use of existing - * one instead. - */ - pci_info->edac_idx = edac_pci_alloc_index(); - pci_info->edac_dev = edac_pci_alloc_ctl_info(0, pci_info->ctl_name); - if (!pci_info->edac_dev) { - ret = -ENOMEM; - goto err_dev_put; - } - - pci_info->edac_dev->pvt_info = pci_info; - pci_info->edac_dev->dev = &pci_info->dev->dev; - pci_info->edac_dev->mod_name = AMD8111_EDAC_MOD_STR; - pci_info->edac_dev->ctl_name = pci_info->ctl_name; - pci_info->edac_dev->dev_name = dev_name(&pci_info->dev->dev); - - if (edac_op_state == EDAC_OPSTATE_POLL) - pci_info->edac_dev->edac_check = pci_info->check; - - if (pci_info->init) - pci_info->init(pci_info); - - if (edac_pci_add_device(pci_info->edac_dev, pci_info->edac_idx) > 0) { - printk(KERN_ERR "failed to add edac_pci for %s\n", - pci_info->ctl_name); - goto err_edac_free_ctl; - } - - printk(KERN_INFO "added one edac_pci on AMD8111 " - "vendor %x, device %x, name %s\n", - PCI_VENDOR_ID_AMD, pci_info->err_dev, - pci_info->ctl_name); - - return 0; - -err_edac_free_ctl: - edac_pci_free_ctl_info(pci_info->edac_dev); -err_dev_put: - pci_dev_put(pci_info->dev); -err: - return ret; -} - -static void amd8111_pci_remove(struct pci_dev *dev) -{ - struct amd8111_pci_info *pci_info; - - for (pci_info = amd8111_pcis; pci_info->err_dev; pci_info++) - if (pci_info->dev->device == dev->device) - break; - - if (!pci_info->err_dev) /* should never happen */ - return; - - if (pci_info->edac_dev) { - edac_pci_del_device(pci_info->edac_dev->dev); - edac_pci_free_ctl_info(pci_info->edac_dev); - } - - if (pci_info->exit) - pci_info->exit(pci_info); - - pci_dev_put(pci_info->dev); -} - -/* PCI Device ID talbe for general EDAC device */ -static const struct pci_device_id amd8111_edac_dev_tbl[] = { - { - PCI_VEND_DEV(AMD, 8111_LPC), - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .class = 0, - .class_mask = 0, - .driver_data = LPC_BRIDGE, - }, - { - 0, - } /* table is NULL-terminated */ -}; -MODULE_DEVICE_TABLE(pci, amd8111_edac_dev_tbl); - -static struct pci_driver amd8111_edac_dev_driver = { - .name = "AMD8111_EDAC_DEV", - .probe = amd8111_dev_probe, - .remove = amd8111_dev_remove, - .id_table = amd8111_edac_dev_tbl, -}; - -/* PCI Device ID table for EDAC PCI controller */ -static const struct pci_device_id amd8111_edac_pci_tbl[] = { - { - PCI_VEND_DEV(AMD, 8111_PCI), - .subvendor = PCI_ANY_ID, - .subdevice = PCI_ANY_ID, - .class = 0, - .class_mask = 0, - .driver_data = PCI_BRIDGE, - }, - { - 0, - } /* table is NULL-terminated */ -}; -MODULE_DEVICE_TABLE(pci, amd8111_edac_pci_tbl); - -static struct pci_driver amd8111_edac_pci_driver = { - .name = "AMD8111_EDAC_PCI", - .probe = amd8111_pci_probe, - .remove = amd8111_pci_remove, - .id_table = amd8111_edac_pci_tbl, -}; - -static int __init amd8111_edac_init(void) -{ - int val; - - printk(KERN_INFO "AMD8111 EDAC driver " AMD8111_EDAC_REVISION "\n"); - printk(KERN_INFO "\t(c) 2008 Wind River Systems, Inc.\n"); - - /* Only POLL mode supported so far */ - edac_op_state = EDAC_OPSTATE_POLL; - - val = pci_register_driver(&amd8111_edac_dev_driver); - val |= pci_register_driver(&amd8111_edac_pci_driver); - - return val; -} - -static void __exit amd8111_edac_exit(void) -{ - pci_unregister_driver(&amd8111_edac_pci_driver); - pci_unregister_driver(&amd8111_edac_dev_driver); -} - - -module_init(amd8111_edac_init); -module_exit(amd8111_edac_exit); - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Cao Qingtao <qingtao.cao@windriver.com>"); -MODULE_DESCRIPTION("AMD8111 HyperTransport I/O Hub EDAC kernel module"); |