1/* SPDX-License-Identifier: GPL-2.0 */
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
11#include <linux/errno.h>
12#include <linux/types.h>
13
14#define AER_NONFATAL			0
15#define AER_FATAL			1
16#define AER_CORRECTABLE			2
17#define DPC_FATAL			3
18
19struct pci_dev;
20
21struct pcie_tlp_log {
22	u32 dw[4];
23};
24
25struct aer_capability_regs {
26	u32 header;
27	u32 uncor_status;
28	u32 uncor_mask;
29	u32 uncor_severity;
30	u32 cor_status;
31	u32 cor_mask;
32	u32 cap_control;
33	struct pcie_tlp_log header_log;
34	u32 root_command;
35	u32 root_status;
36	u16 cor_err_source;
37	u16 uncor_err_source;
38};
39
40int pcie_read_tlp_log(struct pci_dev *dev, int where, struct pcie_tlp_log *log);
41
42#if defined(CONFIG_PCIEAER)
43int pci_aer_clear_nonfatal_status(struct pci_dev *dev);
44int pcie_aer_is_native(struct pci_dev *dev);
45#else
46static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev)
47{
48	return -EINVAL;
49}
50static inline int pcie_aer_is_native(struct pci_dev *dev) { return 0; }
51#endif
52
53void pci_print_aer(struct pci_dev *dev, int aer_severity,
54		    struct aer_capability_regs *aer);
55int cper_severity_to_aer(int cper_severity);
56void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
57		       int severity, struct aer_capability_regs *aer_regs);
58#endif //_AER_H_
59
60