Merge git://git.infradead.org/users/eparis/audit

[firefly-linux-kernel-4.4.55.git] / include / linux / pci.h

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 96453f9bc8bafa947d87a64b1102f8115ad43ea9..5be8db45e368b23eb4c0d7b16b92f9db49290998 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -45,7 +45,7 @@
  * In the interest of not exposing interfaces to user-space unnecessarily,
  * the following kernel-only defines are being added here.
  */
-#define PCI_DEVID(bus, devfn)  ((((u16)bus) << 8) | devfn)
+#define PCI_DEVID(bus, devfn)  ((((u16)(bus)) << 8) | (devfn))
 /* return bus from PCI devid = ((u16)bus_number) << 8) | devfn */
 #define PCI_BUS_NUM(x) (((x) >> 8) & 0xff)
 
@@ -457,6 +457,9 @@ struct pci_bus {
        unsigned char   primary;        /* number of primary bridge */
        unsigned char   max_bus_speed;  /* enum pci_bus_speed */
        unsigned char   cur_bus_speed;  /* enum pci_bus_speed */
+#ifdef CONFIG_PCI_DOMAINS_GENERIC
+       int             domain_nr;
+#endif
 
        char            name[48];
 
@@ -1103,6 +1106,9 @@ int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
                                                  resource_size_t),
                        void *alignf_data);
 
+
+int pci_remap_iospace(const struct resource *res, phys_addr_t phys_addr);
+
 static inline dma_addr_t pci_bus_address(struct pci_dev *pdev, int bar)
 {
        struct pci_bus_region region;
@@ -1288,12 +1294,32 @@ void pci_cfg_access_unlock(struct pci_dev *dev);
  */
 #ifdef CONFIG_PCI_DOMAINS
 extern int pci_domains_supported;
+int pci_get_new_domain_nr(void);
 #else
 enum { pci_domains_supported = 0 };
 static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
 static inline int pci_proc_domain(struct pci_bus *bus) { return 0; }
+static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
 #endif /* CONFIG_PCI_DOMAINS */
 
+/*
+ * Generic implementation for PCI domain support. If your
+ * architecture does not need custom management of PCI
+ * domains then this implementation will be used
+ */
+#ifdef CONFIG_PCI_DOMAINS_GENERIC
+static inline int pci_domain_nr(struct pci_bus *bus)
+{
+       return bus->domain_nr;
+}
+void pci_bus_assign_domain_nr(struct pci_bus *bus, struct device *parent);
+#else
+static inline void pci_bus_assign_domain_nr(struct pci_bus *bus,
+                                       struct device *parent)
+{
+}
+#endif
+
 /* 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, u32 flags);
@@ -1402,6 +1428,7 @@ static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
 
 static inline int pci_domain_nr(struct pci_bus *bus) { return 0; }
 static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
+static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
 
 #define dev_is_pci(d) (false)
 #define dev_is_pf(d) (false)
@@ -1563,16 +1590,11 @@ enum pci_fixup_pass {
 
 #ifdef CONFIG_PCI_QUIRKS
 void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev);
-struct pci_dev *pci_get_dma_source(struct pci_dev *dev);
 int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags);
 void pci_dev_specific_enable_acs(struct pci_dev *dev);
 #else
 static inline void pci_fixup_device(enum pci_fixup_pass pass,
                                    struct pci_dev *dev) { }
-static inline struct pci_dev *pci_get_dma_source(struct pci_dev *dev)
-{
-       return pci_dev_get(dev);
-}
 static inline int pci_dev_specific_acs_enabled(struct pci_dev *dev,
                                               u16 acs_flags)
 {
@@ -1707,7 +1729,7 @@ bool pci_acs_path_enabled(struct pci_dev *start,
                          struct pci_dev *end, u16 acs_flags);
 
 #define PCI_VPD_LRDT                   0x80    /* Large Resource Data Type */
-#define PCI_VPD_LRDT_ID(x)             (x | PCI_VPD_LRDT)
+#define PCI_VPD_LRDT_ID(x)             ((x) | PCI_VPD_LRDT)
 
 /* Large Resource Data Type Tag Item Names */
 #define PCI_VPD_LTIN_ID_STRING         0x02    /* Identifier String */
@@ -1834,15 +1856,17 @@ int pci_for_each_dma_alias(struct pci_dev *pdev,
                           int (*fn)(struct pci_dev *pdev,
                                     u16 alias, void *data), void *data);
 
-/**
- * pci_find_upstream_pcie_bridge - find upstream PCIe-to-PCI bridge of a device
- * @pdev: the PCI device
- *
- * if the device is PCIE, return NULL
- * if the device isn't connected to a PCIe bridge (that is its parent is a
- * legacy PCI bridge and the bridge is directly connected to bus 0), return its
- * parent
- */
-struct pci_dev *pci_find_upstream_pcie_bridge(struct pci_dev *pdev);
-
+/* helper functions for operation of device flag */
+static inline void pci_set_dev_assigned(struct pci_dev *pdev)
+{
+       pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
+}
+static inline void pci_clear_dev_assigned(struct pci_dev *pdev)
+{
+       pdev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
+}
+static inline bool pci_is_dev_assigned(struct pci_dev *pdev)
+{
+       return (pdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) == PCI_DEV_FLAGS_ASSIGNED;
+}
 #endif /* LINUX_PCI_H */