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review.shift-gmbh.com / SHIFTPHONES / kernel / common / 05d4487197b2b71d5363623c28924fd58c71c0b6 / . / include / linux / aer.h
blob: 97f64ba1b34a9d695be4d6d60b539aaf1ada88ba [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +0100[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0 */
Zhang, Yanmin6c2b3742006-07-31 15:21:33 +0800[diff] [blame]2/*
3 * Copyright (C) 2006 Intel Corp.
4 * Tom Long Nguyen (tom.l.nguyen@intel.com)
5 * Zhang Yanmin (yanmin.zhang@intel.com)
6 */
7
8#ifndef _AER_H_
9#define _AER_H_
10
Sudip Mukherjeec89e5b82015-12-23 21:05:26 +0530[diff] [blame]11#include <linux/errno.h>
Thierry Redingefd01a72014-08-05 14:08:55 +0200[diff] [blame]12#include <linux/types.h>
13
Betty Dall9e50a912013-06-06 12:10:49 -0600[diff] [blame]14#define AER_NONFATAL 0
15#define AER_FATAL 1
16#define AER_CORRECTABLE 2
Oza Pawandeepb09803b2018-05-17 16:44:20 -0500[diff] [blame]17#define DPC_FATAL 3
Betty Dall9e50a912013-06-06 12:10:49 -0600[diff] [blame]18
Mike Qiu5ccb8222014-07-29 10:49:25 -0700[diff] [blame]19struct pci_dev;
20
Huang Yingc413d762011-02-21 13:54:43 +0800[diff] [blame]21struct aer_header_log_regs {
22 unsigned int dw0;
23 unsigned int dw1;
24 unsigned int dw2;
25 unsigned int dw3;
26};
27
28struct aer_capability_regs {
29 u32 header;
30 u32 uncor_status;
31 u32 uncor_mask;
32 u32 uncor_severity;
33 u32 cor_status;
34 u32 cor_mask;
35 u32 cap_control;
36 struct aer_header_log_regs header_log;
37 u32 root_command;
38 u32 root_status;
39 u16 cor_err_source;
40 u16 uncor_err_source;
41};
42
Zhang, Yanmin6c2b3742006-07-31 15:21:33 +0800[diff] [blame]43#if defined(CONFIG_PCIEAER)
Bjorn Helgaas96291d52017-09-01 16:35:50 -0500[diff] [blame]44/* PCIe port driver needs this function to enable AER */
Betty Dallfde41b92013-06-06 14:35:35 -0600[diff] [blame]45int pci_enable_pcie_error_reporting(struct pci_dev *dev);
46int pci_disable_pcie_error_reporting(struct pci_dev *dev);
Kuppuswamy Sathyanarayanan894020f2020-03-23 17:26:08 -0700[diff] [blame]47int pci_aer_clear_nonfatal_status(struct pci_dev *dev);
Patel, Mayurkumaraf65d1a2019-10-18 16:52:21 +0000[diff] [blame]48void pci_save_aer_state(struct pci_dev *dev);
49void pci_restore_aer_state(struct pci_dev *dev);
Zhang, Yanmin6c2b3742006-07-31 15:21:33 +0800[diff] [blame]50#else
Randy Dunlap5547bbe2007-08-23 10:37:53 -0700[diff] [blame]51static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
52{
53 return -EINVAL;
54}
Randy Dunlap5547bbe2007-08-23 10:37:53 -0700[diff] [blame]55static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
56{
57 return -EINVAL;
58}
Kuppuswamy Sathyanarayanan894020f2020-03-23 17:26:08 -0700[diff] [blame]59static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev)
Taku Izumib07461a2015-09-17 10:09:37 -0500[diff] [blame]60{
61 return -EINVAL;
62}
Patel, Mayurkumaraf65d1a2019-10-18 16:52:21 +0000[diff] [blame]63static inline void pci_save_aer_state(struct pci_dev *dev) {}
64static inline void pci_restore_aer_state(struct pci_dev *dev) {}
Zhang, Yanmin6c2b3742006-07-31 15:21:33 +0800[diff] [blame]65#endif
66
Tyler Baicar95c35492016-09-14 15:14:45 -0600[diff] [blame]67void cper_print_aer(struct pci_dev *dev, int aer_severity,
Betty Dallfde41b92013-06-06 14:35:35 -0600[diff] [blame]68 struct aer_capability_regs *aer);
69int cper_severity_to_aer(int cper_severity);
70void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
Bjorn Helgaas96291d52017-09-01 16:35:50 -0500[diff] [blame]71 int severity, struct aer_capability_regs *aer_regs);
Zhang, Yanmin6c2b3742006-07-31 15:21:33 +0800[diff] [blame]72#endif //_AER_H_
73