PCI: Add support for save/restore of extended capabilities
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>
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 211ce43..1bb75b0 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -224,7 +224,8 @@
};
struct pci_cap_saved_data {
- char cap_nr;
+ u16 cap_nr;
+ bool cap_extended;
unsigned int size;
u32 data[0];
};
@@ -977,6 +978,12 @@
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);