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c4c543fc SM |
1 | #ifndef _GPXE_PCIBACKUP_H |
2 | #define _GPXE_PCIBACKUP_H | |
3 | ||
4 | /** @file | |
5 | * | |
6 | * PCI configuration space backup and restoration | |
7 | * | |
8 | */ | |
9 | ||
10 | FILE_LICENCE ( GPL2_OR_LATER ); | |
11 | ||
12 | #include <stdint.h> | |
13 | ||
14 | /** A PCI configuration space backup */ | |
15 | struct pci_config_backup { | |
16 | uint32_t dwords[64]; | |
17 | }; | |
18 | ||
19 | /** PCI configuration space backup exclusion list end marker */ | |
20 | #define PCI_CONFIG_BACKUP_EXCLUDE_END 0xff | |
21 | ||
22 | /** Define a PCI configuration space backup exclusion list */ | |
23 | #define PCI_CONFIG_BACKUP_EXCLUDE(...) \ | |
24 | { __VA_ARGS__, PCI_CONFIG_BACKUP_EXCLUDE_END } | |
25 | ||
26 | extern void pci_backup ( struct pci_device *pci, | |
27 | struct pci_config_backup *backup, | |
28 | const uint8_t *exclude ); | |
29 | extern void pci_restore ( struct pci_device *pci, | |
30 | struct pci_config_backup *backup, | |
31 | const uint8_t *exclude ); | |
32 | ||
33 | #endif /* _GPXE_PCIBACKUP_H */ |