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authorH. Peter Anvin <hpa@zytor.com>2010-02-03 16:06:41 -0800
committerH. Peter Anvin <hpa@zytor.com>2010-02-03 16:06:41 -0800
commitaddaeaeb3949d576c4e0eb5cfc133b7c3bcfa8fa (patch)
tree2ffea726dc494e87ecc9f506bc6a2bc9242730e3 /gpxe/src/include/gpxe/pcibackup.h
parent5c0f48e49f8d7d084810ecf0b98a76aaebb44835 (diff)
parente7a5f95432132c8fc8f8ede39fda1d368002ddd8 (diff)
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Merge branch 'master' into i915res
Diffstat (limited to 'gpxe/src/include/gpxe/pcibackup.h')
-rw-r--r--gpxe/src/include/gpxe/pcibackup.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/gpxe/src/include/gpxe/pcibackup.h b/gpxe/src/include/gpxe/pcibackup.h
new file mode 100644
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--- /dev/null
+++ b/gpxe/src/include/gpxe/pcibackup.h
@@ -0,0 +1,33 @@
+#ifndef _GPXE_PCIBACKUP_H
+#define _GPXE_PCIBACKUP_H
+
+/** @file
+ *
+ * PCI configuration space backup and restoration
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <stdint.h>
+
+/** A PCI configuration space backup */
+struct pci_config_backup {
+ uint32_t dwords[64];
+};
+
+/** PCI configuration space backup exclusion list end marker */
+#define PCI_CONFIG_BACKUP_EXCLUDE_END 0xff
+
+/** Define a PCI configuration space backup exclusion list */
+#define PCI_CONFIG_BACKUP_EXCLUDE(...) \
+ { __VA_ARGS__, PCI_CONFIG_BACKUP_EXCLUDE_END }
+
+extern void pci_backup ( struct pci_device *pci,
+ struct pci_config_backup *backup,
+ const uint8_t *exclude );
+extern void pci_restore ( struct pci_device *pci,
+ struct pci_config_backup *backup,
+ const uint8_t *exclude );
+
+#endif /* _GPXE_PCIBACKUP_H */