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Merge branch 'linux-4.4' of https://github.com/skeggsb/linux into drm-fixes
[karo-tx-linux.git] / include / linux / aer.h
1 /*
2  * Copyright (C) 2006 Intel Corp.
3  *     Tom Long Nguyen (tom.l.nguyen@intel.com)
4  *     Zhang Yanmin (yanmin.zhang@intel.com)
5  */
6
7 #ifndef _AER_H_
8 #define _AER_H_
9
10 #include <linux/types.h>
11
12 #define AER_NONFATAL                    0
13 #define AER_FATAL                       1
14 #define AER_CORRECTABLE                 2
15
16 struct pci_dev;
17
18 struct aer_header_log_regs {
19         unsigned int dw0;
20         unsigned int dw1;
21         unsigned int dw2;
22         unsigned int dw3;
23 };
24
25 struct 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 aer_header_log_regs header_log;
34         u32 root_command;
35         u32 root_status;
36         u16 cor_err_source;
37         u16 uncor_err_source;
38 };
39
40 #if defined(CONFIG_PCIEAER)
41 /* pci-e port driver needs this function to enable aer */
42 int pci_enable_pcie_error_reporting(struct pci_dev *dev);
43 int pci_disable_pcie_error_reporting(struct pci_dev *dev);
44 int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
45 int pci_cleanup_aer_error_status_regs(struct pci_dev *dev);
46 #else
47 static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
48 {
49         return -EINVAL;
50 }
51 static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
52 {
53         return -EINVAL;
54 }
55 static inline int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
56 {
57         return -EINVAL;
58 }
59 static inline int pci_cleanup_aer_error_status_regs(struct pci_dev *dev)
60 {
61         return -EINVAL;
62 }
63 #endif
64
65 void cper_print_aer(struct pci_dev *dev, int cper_severity,
66                     struct aer_capability_regs *aer);
67 int cper_severity_to_aer(int cper_severity);
68 void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
69                        int severity,
70                        struct aer_capability_regs *aer_regs);
71 #endif //_AER_H_
72