+#ifndef DRIVERS_PCI_H
+#define DRIVERS_PCI_H
+
+#include <linux/workqueue.h>
+
+#define PCI_CFG_SPACE_SIZE 256
+#define PCI_CFG_SPACE_EXP_SIZE 4096
+
/* Functions internal to the PCI core code */
-extern int pci_hotplug (struct device *dev, char **envp, int num_envp,
- char *buffer, int buffer_size);
+extern int pci_uevent(struct device *dev, struct kobj_uevent_env *env);
extern int pci_create_sysfs_dev_files(struct pci_dev *pdev);
extern void pci_remove_sysfs_dev_files(struct pci_dev *pdev);
+#if !defined(CONFIG_DMI) && !defined(CONFIG_ACPI)
+static inline void pci_create_firmware_label_files(struct pci_dev *pdev)
+{ return; }
+static inline void pci_remove_firmware_label_files(struct pci_dev *pdev)
+{ return; }
+#else
+extern void pci_create_firmware_label_files(struct pci_dev *pdev);
+extern void pci_remove_firmware_label_files(struct pci_dev *pdev);
+#endif
extern void pci_cleanup_rom(struct pci_dev *dev);
-extern int pci_bus_alloc_resource(struct pci_bus *bus, struct resource *res,
- unsigned long size, unsigned long align,
- unsigned long min, unsigned int type_mask,
- void (*alignf)(void *, struct resource *,
- unsigned long, unsigned long),
- void *alignf_data);
-/* Firmware callbacks */
-extern int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
-extern int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t state);
+#ifdef HAVE_PCI_MMAP
+enum pci_mmap_api {
+ PCI_MMAP_SYSFS, /* mmap on /sys/bus/pci/devices/<BDF>/resource<N> */
+ PCI_MMAP_PROCFS /* mmap on /proc/bus/pci/<BDF> */
+};
+extern int pci_mmap_fits(struct pci_dev *pdev, int resno,
+ struct vm_area_struct *vmai,
+ enum pci_mmap_api mmap_api);
+#endif
+int pci_probe_reset_function(struct pci_dev *dev);
+
+/**
+ * struct pci_platform_pm_ops - Firmware PM callbacks
+ *
+ * @is_manageable: returns 'true' if given device is power manageable by the
+ * platform firmware
+ *
+ * @set_state: invokes the platform firmware to set the device's power state
+ *
+ * @choose_state: returns PCI power state of given device preferred by the
+ * platform; to be used during system-wide transitions from a
+ * sleeping state to the working state and vice versa
+ *
+ * @can_wakeup: returns 'true' if given device is capable of waking up the
+ * system from a sleeping state
+ *
+ * @sleep_wake: enables/disables the system wake up capability of given device
+ *
+ * @run_wake: enables/disables the platform to generate run-time wake-up events
+ * for given device (the device's wake-up capability has to be
+ * enabled by @sleep_wake for this feature to work)
+ *
+ * If given platform is generally capable of power managing PCI devices, all of
+ * these callbacks are mandatory.
+ */
+struct pci_platform_pm_ops {
+ bool (*is_manageable)(struct pci_dev *dev);
+ int (*set_state)(struct pci_dev *dev, pci_power_t state);
+ pci_power_t (*choose_state)(struct pci_dev *dev);
+ bool (*can_wakeup)(struct pci_dev *dev);
+ int (*sleep_wake)(struct pci_dev *dev, bool enable);
+ int (*run_wake)(struct pci_dev *dev, bool enable);
+};
+
+extern int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
+extern void pci_update_current_state(struct pci_dev *dev, pci_power_t state);
+extern void pci_disable_enabled_device(struct pci_dev *dev);
+extern int pci_finish_runtime_suspend(struct pci_dev *dev);
+extern int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
+extern void pci_pm_init(struct pci_dev *dev);
+extern void platform_pci_wakeup_init(struct pci_dev *dev);
+extern void pci_allocate_cap_save_buffers(struct pci_dev *dev);
+
+static inline void pci_wakeup_event(struct pci_dev *dev)
+{
+ /* Wait 100 ms before the system can be put into a sleep state. */
+ pm_wakeup_event(&dev->dev, 100);
+}
+
+static inline bool pci_is_bridge(struct pci_dev *pci_dev)
+{
+ return !!(pci_dev->subordinate);
+}
+
+extern int pci_user_read_config_byte(struct pci_dev *dev, int where, u8 *val);
+extern int pci_user_read_config_word(struct pci_dev *dev, int where, u16 *val);
+extern int pci_user_read_config_dword(struct pci_dev *dev, int where, u32 *val);
+extern int pci_user_write_config_byte(struct pci_dev *dev, int where, u8 val);
+extern int pci_user_write_config_word(struct pci_dev *dev, int where, u16 val);
+extern int pci_user_write_config_dword(struct pci_dev *dev, int where, u32 val);
+
+struct pci_vpd_ops {
+ ssize_t (*read)(struct pci_dev *dev, loff_t pos, size_t count, void *buf);
+ ssize_t (*write)(struct pci_dev *dev, loff_t pos, size_t count, const void *buf);
+ void (*release)(struct pci_dev *dev);
+};
+
+struct pci_vpd {
+ unsigned int len;
+ const struct pci_vpd_ops *ops;
+ struct bin_attribute *attr; /* descriptor for sysfs VPD entry */
+};
+
+extern int pci_vpd_pci22_init(struct pci_dev *dev);
+static inline void pci_vpd_release(struct pci_dev *dev)
+{
+ if (dev->vpd)
+ dev->vpd->ops->release(dev);
+}
/* PCI /proc functions */
#ifdef CONFIG_PROC_FS
extern int pci_proc_attach_device(struct pci_dev *dev);
extern int pci_proc_detach_device(struct pci_dev *dev);
-extern int pci_proc_attach_bus(struct pci_bus *bus);
extern int pci_proc_detach_bus(struct pci_bus *bus);
#else
static inline int pci_proc_attach_device(struct pci_dev *dev) { return 0; }
static inline int pci_proc_detach_device(struct pci_dev *dev) { return 0; }
-static inline int pci_proc_attach_bus(struct pci_bus *bus) { return 0; }
static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
#endif
/* Functions for PCI Hotplug drivers to use */
extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
-extern int pci_remove_device_safe(struct pci_dev *dev);
-extern unsigned char pci_max_busnr(void);
-extern unsigned char pci_bus_max_busnr(struct pci_bus *bus);
-extern int pci_bus_find_capability (struct pci_bus *bus, unsigned int devfn, int cap);
+#ifdef HAVE_PCI_LEGACY
+extern void pci_create_legacy_files(struct pci_bus *bus);
extern void pci_remove_legacy_files(struct pci_bus *bus);
+#else
+static inline void pci_create_legacy_files(struct pci_bus *bus) { return; }
+static inline void pci_remove_legacy_files(struct pci_bus *bus) { return; }
+#endif
/* Lock for read/write access to pci device and bus lists */
-extern spinlock_t pci_bus_lock;
+extern struct rw_semaphore pci_bus_sem;
-#ifdef CONFIG_X86_IO_APIC
-extern int pci_msi_quirk;
-#else
-#define pci_msi_quirk 0
-#endif
+extern unsigned int pci_pm_d3_delay;
#ifdef CONFIG_PCI_MSI
-void disable_msi_mode(struct pci_dev *dev, int pos, int type);
+void pci_no_msi(void);
+extern void pci_msi_init_pci_dev(struct pci_dev *dev);
#else
-static inline void disable_msi_mode(struct pci_dev *dev, int pos, int type) { }
+static inline void pci_no_msi(void) { }
+static inline void pci_msi_init_pci_dev(struct pci_dev *dev) { }
#endif
-extern int pcie_mch_quirk;
+extern void pci_realloc(void);
+
+static inline int pci_no_d1d2(struct pci_dev *dev)
+{
+ unsigned int parent_dstates = 0;
+
+ if (dev->bus->self)
+ parent_dstates = dev->bus->self->no_d1d2;
+ return (dev->no_d1d2 || parent_dstates);
+
+}
extern struct device_attribute pci_dev_attrs[];
-extern struct class_device_attribute class_device_attr_cpuaffinity;
+extern struct device_attribute pcibus_dev_attrs[];
+#ifdef CONFIG_HOTPLUG
+extern struct bus_attribute pci_bus_attrs[];
+#else
+#define pci_bus_attrs NULL
+#endif
+
/**
* pci_match_one_device - Tell if a PCI device structure has a matching
* PCI device id structure
* @id: single PCI device id structure to match
* @dev: the PCI device structure to match against
- *
+ *
* Returns the matching pci_device_id structure or %NULL if there is no match.
*/
static inline const struct pci_device_id *
return NULL;
}
+/* PCI slot sysfs helper code */
+#define to_pci_slot(s) container_of(s, struct pci_slot, kobj)
+
+extern struct kset *pci_slots_kset;
+
+struct pci_slot_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct pci_slot *, char *);
+ ssize_t (*store)(struct pci_slot *, const char *, size_t);
+};
+#define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr)
+
+enum pci_bar_type {
+ pci_bar_unknown, /* Standard PCI BAR probe */
+ pci_bar_io, /* An io port BAR */
+ pci_bar_mem32, /* A 32-bit memory BAR */
+ pci_bar_mem64, /* A 64-bit memory BAR */
+};
+
+extern int pci_setup_device(struct pci_dev *dev);
+extern int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
+ struct resource *res, unsigned int reg);
+extern int pci_resource_bar(struct pci_dev *dev, int resno,
+ enum pci_bar_type *type);
+extern int pci_bus_add_child(struct pci_bus *bus);
+extern void pci_enable_ari(struct pci_dev *dev);
+/**
+ * pci_ari_enabled - query ARI forwarding status
+ * @bus: the PCI bus
+ *
+ * Returns 1 if ARI forwarding is enabled, or 0 if not enabled;
+ */
+static inline int pci_ari_enabled(struct pci_bus *bus)
+{
+ return bus->self && bus->self->ari_enabled;
+}
+
+#ifdef CONFIG_PCI_QUIRKS
+extern int pci_is_reassigndev(struct pci_dev *dev);
+resource_size_t pci_specified_resource_alignment(struct pci_dev *dev);
+extern void pci_disable_bridge_window(struct pci_dev *dev);
+#endif
+
+/* Single Root I/O Virtualization */
+struct pci_sriov {
+ int pos; /* capability position */
+ int nres; /* number of resources */
+ u32 cap; /* SR-IOV Capabilities */
+ u16 ctrl; /* SR-IOV Control */
+ u16 total; /* total VFs associated with the PF */
+ u16 initial; /* initial VFs associated with the PF */
+ u16 nr_virtfn; /* number of VFs available */
+ u16 offset; /* first VF Routing ID offset */
+ u16 stride; /* following VF stride */
+ u32 pgsz; /* page size for BAR alignment */
+ u8 link; /* Function Dependency Link */
+ struct pci_dev *dev; /* lowest numbered PF */
+ struct pci_dev *self; /* this PF */
+ struct mutex lock; /* lock for VF bus */
+ struct work_struct mtask; /* VF Migration task */
+ u8 __iomem *mstate; /* VF Migration State Array */
+};
+
+#ifdef CONFIG_PCI_IOV
+extern int pci_iov_init(struct pci_dev *dev);
+extern void pci_iov_release(struct pci_dev *dev);
+extern int pci_iov_resource_bar(struct pci_dev *dev, int resno,
+ enum pci_bar_type *type);
+extern resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev,
+ int resno);
+extern void pci_restore_iov_state(struct pci_dev *dev);
+extern int pci_iov_bus_range(struct pci_bus *bus);
+
+#else
+static inline int pci_iov_init(struct pci_dev *dev)
+{
+ return -ENODEV;
+}
+static inline void pci_iov_release(struct pci_dev *dev)
+
+{
+}
+static inline int pci_iov_resource_bar(struct pci_dev *dev, int resno,
+ enum pci_bar_type *type)
+{
+ return 0;
+}
+static inline void pci_restore_iov_state(struct pci_dev *dev)
+{
+}
+static inline int pci_iov_bus_range(struct pci_bus *bus)
+{
+ return 0;
+}
+
+#endif /* CONFIG_PCI_IOV */
+
+static inline resource_size_t pci_resource_alignment(struct pci_dev *dev,
+ struct resource *res)
+{
+#ifdef CONFIG_PCI_IOV
+ int resno = res - dev->resource;
+
+ if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END)
+ return pci_sriov_resource_alignment(dev, resno);
+#endif
+ return resource_alignment(res);
+}
+
+extern void pci_enable_acs(struct pci_dev *dev);
+
+struct pci_dev_reset_methods {
+ u16 vendor;
+ u16 device;
+ int (*reset)(struct pci_dev *dev, int probe);
+};
+
+#ifdef CONFIG_PCI_QUIRKS
+extern int pci_dev_specific_reset(struct pci_dev *dev, int probe);
+#else
+static inline int pci_dev_specific_reset(struct pci_dev *dev, int probe)
+{
+ return -ENOTTY;
+}
+#endif
+
+#endif /* DRIVERS_PCI_H */
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