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PCI: Add support for save/restore of extended capabilities

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Current save/restore is specific to standard capabilities.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Alex Williamson 2013-12-17 16:43:45 -07:00 • committed by Bjorn Helgaas
parent 157e876ffe
commit fd0f7f73ca
2 changed files with 43 additions and 9 deletions
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9
include/linux/pci.h
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@ -224,7 +224,8 @@ enum pci_bus_speed {
};
struct pci_cap_saved_data {
char cap_nr;
u16 cap_nr;
bool cap_extended;
unsigned int size;
u32 data[0];
};
@ -977,6 +978,12 @@ struct pci_saved_state *pci_store_saved_state(struct pci_dev *dev);
int pci_load_saved_state(struct pci_dev *dev, struct pci_saved_state *state);
int pci_load_and_free_saved_state(struct pci_dev *dev,
struct pci_saved_state **state);
struct pci_cap_saved_state *pci_find_saved_cap(struct pci_dev *dev, char cap);
struct pci_cap_saved_state *pci_find_saved_ext_cap(struct pci_dev *dev,
u16 cap);
int pci_add_cap_save_buffer(struct pci_dev *dev, char cap, unsigned int size);
int pci_add_ext_cap_save_buffer(struct pci_dev *dev,
u16 cap, unsigned int size);
int __pci_complete_power_transition(struct pci_dev *dev, pci_power_t state);
int pci_set_power_state(struct pci_dev *dev, pci_power_t state);
pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);