USB: vstusb.c: removal of driver for Vernier Software & Technology, Inc., devices...

[~andy/linux] / include / linux / pci.h

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 1a29f9f6b2dcb9b4aecdf1ef907c83705a3f3c65..25813738c71af86070065af9dd664f6c765c6e2d 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -364,9 +364,26 @@ static inline void pci_add_saved_cap(struct pci_dev *pci_dev,
        hlist_add_head(&new_cap->next, &pci_dev->saved_cap_space);
 }
 
-#ifndef PCI_BUS_NUM_RESOURCES
-#define PCI_BUS_NUM_RESOURCES  16
-#endif
+/*
+ * The first PCI_BRIDGE_RESOURCE_NUM PCI bus resources (those that correspond
+ * to P2P or CardBus bridge windows) go in a table.  Additional ones (for
+ * buses below host bridges or subtractive decode bridges) go in the list.
+ * Use pci_bus_for_each_resource() to iterate through all the resources.
+ */
+
+/*
+ * PCI_SUBTRACTIVE_DECODE means the bridge forwards the window implicitly
+ * and there's no way to program the bridge with the details of the window.
+ * This does not apply to ACPI _CRS windows, even with the _DEC subtractive-
+ * decode bit set, because they are explicit and can be programmed with _SRS.
+ */
+#define PCI_SUBTRACTIVE_DECODE 0x1
+
+struct pci_bus_resource {
+       struct list_head list;
+       struct resource *res;
+       unsigned int flags;
+};
 
 #define PCI_REGION_FLAG_MASK   0x0fU   /* These bits of resource flags tell us the PCI region flags */
 
@@ -377,8 +394,8 @@ struct pci_bus {
        struct list_head devices;       /* list of devices on this bus */
        struct pci_dev  *self;          /* bridge device as seen by parent */
        struct list_head slots;         /* list of slots on this bus */
-       struct resource *resource[PCI_BUS_NUM_RESOURCES];
-                                       /* address space routed to this bus */
+       struct resource *resource[PCI_BRIDGE_RESOURCE_NUM];
+       struct list_head resources;     /* address space routed to this bus */
 
        struct pci_ops  *ops;           /* configuration access functions */
        void            *sysdata;       /* hook for sys-specific extension */
@@ -829,6 +846,15 @@ int pci_request_selected_regions_exclusive(struct pci_dev *, int, const char *);
 void pci_release_selected_regions(struct pci_dev *, int);
 
 /* drivers/pci/bus.c */
+void pci_bus_add_resource(struct pci_bus *bus, struct resource *res, unsigned int flags);
+struct resource *pci_bus_resource_n(const struct pci_bus *bus, int n);
+void pci_bus_remove_resources(struct pci_bus *bus);
+
+#define pci_bus_for_each_resource(bus, res, i)                         \
+       for (i = 0;                                                     \
+           (res = pci_bus_resource_n(bus, i)) || i < PCI_BRIDGE_RESOURCE_NUM; \
+            i++)
+
 int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
                        struct resource *res, resource_size_t size,
                        resource_size_t align, resource_size_t min,
@@ -997,6 +1023,11 @@ static inline int pci_proc_domain(struct pci_bus *bus)
 }
 #endif /* CONFIG_PCI_DOMAINS */
 
+/* some architectures require additional setup to direct VGA traffic */
+typedef int (*arch_set_vga_state_t)(struct pci_dev *pdev, bool decode,
+                     unsigned int command_bits, bool change_bridge);
+extern void pci_register_set_vga_state(arch_set_vga_state_t func);
+
 #else /* CONFIG_PCI is not enabled */
 
 /*