Merge tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI changes for the v3.14 merge window:

  Resource management
    - Change pci_bus_region addresses to dma_addr_t (Bjorn Helgaas)
    - Support 64-bit AGP BARs (Bjorn Helgaas, Yinghai Lu)
    - Add pci_bus_address() to get bus address of a BAR (Bjorn Helgaas)
    - Use pci_resource_start() for CPU address of AGP BARs (Bjorn Helgaas)
    - Enforce bus address limits in resource allocation (Yinghai Lu)
    - Allocate 64-bit BARs above 4G when possible (Yinghai Lu)
    - Convert pcibios_resource_to_bus() to take pci_bus, not pci_dev (Yinghai Lu)

  PCI device hotplug
    - Major rescan/remove locking update (Rafael J. Wysocki)
    - Make ioapic builtin only (not modular) (Yinghai Lu)
    - Fix release/free issues (Yinghai Lu)
    - Clean up pciehp (Bjorn Helgaas)
    - Announce pciehp slot info during enumeration (Bjorn Helgaas)

  MSI
    - Add pci_msi_vec_count(), pci_msix_vec_count() (Alexander Gordeev)
    - Add pci_enable_msi_range(), pci_enable_msix_range() (Alexander Gordeev)
    - Deprecate "tri-state" interfaces: fail/success/fail+info (Alexander Gordeev)
    - Export MSI mode using attributes, not kobjects (Greg Kroah-Hartman)
    - Drop "irq" param from *_restore_msi_irqs() (DuanZhenzhong)

  SR-IOV
    - Clear NumVFs when disabling SR-IOV in sriov_init() (ethan.zhao)

  Virtualization
    - Add support for save/restore of extended capabilities (Alex Williamson)
    - Add Virtual Channel to save/restore support (Alex Williamson)
    - Never treat a VF as a multifunction device (Alex Williamson)
    - Add pci_try_reset_function(), et al (Alex Williamson)

  AER
    - Ignore non-PCIe error sources (Betty Dall)
    - Support ACPI HEST error sources for domains other than 0 (Betty Dall)
    - Consolidate HEST error source parsers (Bjorn Helgaas)
    - Add a TLP header print helper (Borislav Petkov)

  Freescale i.MX6
    - Remove unnecessary code (Fabio Estevam)
    - Make reset-gpio optional (Marek Vasut)
    - Report "link up" only after link training completes (Marek Vasut)
    - Start link in Gen1 before negotiating for Gen2 mode (Marek Vasut)
    - Fix PCIe startup code (Richard Zhu)

  Marvell MVEBU
    - Remove duplicate of_clk_get_by_name() call (Andrew Lunn)
    - Drop writes to bridge Secondary Status register (Jason Gunthorpe)
    - Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits (Jason Gunthorpe)
    - Support a bridge with no IO port window (Jason Gunthorpe)
    - Use max_t() instead of max(resource_size_t,) (Jingoo Han)
    - Remove redundant of_match_ptr (Sachin Kamat)
    - Call pci_ioremap_io() at startup instead of dynamically (Thomas Petazzoni)

  NVIDIA Tegra
    - Disable Gen2 for Tegra20 and Tegra30 (Eric Brower)

  Renesas R-Car
    - Add runtime PM support (Valentine Barshak)
    - Fix rcar_pci_probe() return value check (Wei Yongjun)

  Synopsys DesignWare
    - Fix crash in dw_msi_teardown_irq() (Bjørn Erik Nilsen)
    - Remove redundant call to pci_write_config_word() (Bjørn Erik Nilsen)
    - Fix missing MSI IRQs (Harro Haan)
    - Add dw_pcie prefix before cfg_read/write (Pratyush Anand)
    - Fix I/O transfers by using CPU (not realio) address (Pratyush Anand)
    - Whitespace cleanup (Jingoo Han)

  EISA
    - Call put_device() if device_register() fails (Levente Kurusa)
    - Revert EISA initialization breakage ((Bjorn Helgaas)

  Miscellaneous
    - Remove unused code, including PCIe 3.0 interfaces (Stephen Hemminger)
    - Prevent bus conflicts while checking for bridge apertures (Bjorn Helgaas)
    - Stop clearing bridge Secondary Status when setting up I/O aperture (Bjorn Helgaas)
    - Use dev_is_pci() to identify PCI devices (Yijing Wang)
    - Deprecate DEFINE_PCI_DEVICE_TABLE (Joe Perches)
    - Update documentation 00-INDEX (Erik Ekman)"

* tag 'pci-v3.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (119 commits)
  Revert "EISA: Initialize device before its resources"
  Revert "EISA: Log device resources in dmesg"
  vfio-pci: Use pci "try" reset interface
  PCI: Check parent kobject in pci_destroy_dev()
  xen/pcifront: Use global PCI rescan-remove locking
  powerpc/eeh: Use global PCI rescan-remove locking
  PCI: Fix pci_check_and_unmask_intx() comment typos
  PCI: Add pci_try_reset_function(), pci_try_reset_slot(), pci_try_reset_bus()
  MPT / PCI: Use pci_stop_and_remove_bus_device_locked()
  platform / x86: Use global PCI rescan-remove locking
  PCI: hotplug: Use global PCI rescan-remove locking
  pcmcia: Use global PCI rescan-remove locking
  ACPI / hotplug / PCI: Use global PCI rescan-remove locking
  ACPI / PCI: Use global PCI rescan-remove locking in PCI root hotplug
  PCI: Add global pci_lock_rescan_remove()
  PCI: Cleanup pci.h whitespace
  PCI: Reorder so actual code comes before stubs
  PCI/AER: Support ACPI HEST AER error sources for PCI domains other than 0
  ACPICA: Add helper macros to extract bus/segment numbers from HEST table.
  PCI: Make local functions static
  ...

include/acpi/actbl1.h

@@ -457,7 +457,7 @@ struct acpi_hest_aer_common {
 	u8 enabled;
 	u32 records_to_preallocate;
 	u32 max_sections_per_record;
-	u32 bus;
+	u32 bus;		/* Bus and Segment numbers */
 	u16 device;
 	u16 function;
 	u16 device_control;
@@ -473,6 +473,14 @@ struct acpi_hest_aer_common {
 #define ACPI_HEST_FIRMWARE_FIRST        (1)
 #define ACPI_HEST_GLOBAL                (1<<1)
 
+/*
+ * Macros to access the bus/segment numbers in Bus field above:
+ *  Bus number is encoded in bits 7:0
+ *  Segment number is encoded in bits 23:8
+ */
+#define ACPI_HEST_BUS(bus)              ((bus) & 0xFF)
+#define ACPI_HEST_SEGMENT(bus)          (((bus) >> 8) & 0xFFFF)
+
 /* Hardware Error Notification */
 
 struct acpi_hest_notify {

include/linux/msi.h

@@ -60,10 +60,10 @@ void arch_teardown_msi_irq(unsigned int irq);
 int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
 void arch_teardown_msi_irqs(struct pci_dev *dev);
 int arch_msi_check_device(struct pci_dev* dev, int nvec, int type);
-void arch_restore_msi_irqs(struct pci_dev *dev, int irq);
+void arch_restore_msi_irqs(struct pci_dev *dev);
 
 void default_teardown_msi_irqs(struct pci_dev *dev);
-void default_restore_msi_irqs(struct pci_dev *dev, int irq);
+void default_restore_msi_irqs(struct pci_dev *dev);
 u32 default_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
 u32 default_msix_mask_irq(struct msi_desc *desc, u32 flag);
 

include/linux/pci-ats.h

@@ -56,10 +56,7 @@ static inline int pci_ats_enabled(struct pci_dev *dev)
 
 int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
 void pci_disable_pri(struct pci_dev *pdev);
-bool pci_pri_enabled(struct pci_dev *pdev);
 int pci_reset_pri(struct pci_dev *pdev);
-bool pci_pri_stopped(struct pci_dev *pdev);
-int pci_pri_status(struct pci_dev *pdev);
 
 #else /* CONFIG_PCI_PRI */
 
@@ -72,25 +69,11 @@ static inline void pci_disable_pri(struct pci_dev *pdev)
 {
 }
 
-static inline bool pci_pri_enabled(struct pci_dev *pdev)
-{
-	return false;
-}
-
 static inline int pci_reset_pri(struct pci_dev *pdev)
 {
 	return -ENODEV;
 }
 
-static inline bool pci_pri_stopped(struct pci_dev *pdev)
-{
-	return true;
-}
-
-static inline int pci_pri_status(struct pci_dev *pdev)
-{
-	return -ENODEV;
-}
 #endif /* CONFIG_PCI_PRI */
 
 #ifdef CONFIG_PCI_PASID

include/linux/pci.h

@@ -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];
 };
@@ -351,7 +352,7 @@ struct pci_dev {
 	struct bin_attribute *res_attr_wc[DEVICE_COUNT_RESOURCE]; /* sysfs file for WC mapping of resources */
 #ifdef CONFIG_PCI_MSI
 	struct list_head msi_list;
-	struct kset *msi_kset;
+	const struct attribute_group **msi_irq_groups;
 #endif
 	struct pci_vpd *vpd;
 #ifdef CONFIG_PCI_ATS
@@ -375,7 +376,6 @@ static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
 }
 
 struct pci_dev *pci_alloc_dev(struct pci_bus *bus);
-struct pci_dev * __deprecated alloc_pci_dev(void);
 
 #define	to_pci_dev(n) container_of(n, struct pci_dev, dev)
 #define for_each_pci_dev(d) while ((d = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, d)) != NULL)
@@ -385,8 +385,6 @@ static inline int pci_channel_offline(struct pci_dev *pdev)
 	return (pdev->error_state != pci_channel_io_normal);
 }
 
-extern struct resource busn_resource;
-
 struct pci_host_bridge_window {
 	struct list_head list;
 	struct resource *res;		/* host bridge aperture (CPU address) */
@@ -551,8 +549,8 @@ int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn,
 		  int reg, int len, u32 val);
 
 struct pci_bus_region {
-	resource_size_t start;
-	resource_size_t end;
+	dma_addr_t start;
+	dma_addr_t end;
 };
 
 struct pci_dynids {
@@ -634,8 +632,7 @@ struct pci_driver {
  * DEFINE_PCI_DEVICE_TABLE - macro used to describe a pci device table
  * @_table: device table name
  *
- * This macro is used to create a struct pci_device_id array (a device table)
- * in a generic manner.
+ * This macro is deprecated and should not be used in new code.
  */
 #define DEFINE_PCI_DEVICE_TABLE(_table) \
 	const struct pci_device_id _table[]
@@ -737,9 +734,9 @@ void pci_fixup_cardbus(struct pci_bus *);
 
 /* Generic PCI functions used internally */
 
-void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
+void pcibios_resource_to_bus(struct pci_bus *bus, struct pci_bus_region *region,
 			     struct resource *res);
-void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+void pcibios_bus_to_resource(struct pci_bus *bus, struct resource *res,
 			     struct pci_bus_region *region);
 void pcibios_scan_specific_bus(int busn);
 struct pci_bus *pci_find_bus(int domain, int busnr);
@@ -763,7 +760,6 @@ struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
 				 const char *name,
 				 struct hotplug_slot *hotplug);
 void pci_destroy_slot(struct pci_slot *slot);
-void pci_renumber_slot(struct pci_slot *slot, int slot_nr);
 int pci_scan_slot(struct pci_bus *bus, int devfn);
 struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn);
 void pci_device_add(struct pci_dev *dev, struct pci_bus *bus);
@@ -779,6 +775,7 @@ struct pci_dev *pci_dev_get(struct pci_dev *dev);
 void pci_dev_put(struct pci_dev *dev);
 void pci_remove_bus(struct pci_bus *b);
 void pci_stop_and_remove_bus_device(struct pci_dev *dev);
+void pci_stop_and_remove_bus_device_locked(struct pci_dev *dev);
 void pci_stop_root_bus(struct pci_bus *bus);
 void pci_remove_root_bus(struct pci_bus *bus);
 void pci_setup_cardbus(struct pci_bus *bus);
@@ -938,6 +935,7 @@ bool pci_check_and_unmask_intx(struct pci_dev *dev);
 void pci_msi_off(struct pci_dev *dev);
 int pci_set_dma_max_seg_size(struct pci_dev *dev, unsigned int size);
 int pci_set_dma_seg_boundary(struct pci_dev *dev, unsigned long mask);
+int pci_wait_for_pending(struct pci_dev *dev, int pos, u16 mask);
 int pci_wait_for_pending_transaction(struct pci_dev *dev);
 int pcix_get_max_mmrbc(struct pci_dev *dev);
 int pcix_get_mmrbc(struct pci_dev *dev);
@@ -951,10 +949,13 @@ int pcie_get_minimum_link(struct pci_dev *dev, enum pci_bus_speed *speed,
 int __pci_reset_function(struct pci_dev *dev);
 int __pci_reset_function_locked(struct pci_dev *dev);
 int pci_reset_function(struct pci_dev *dev);
+int pci_try_reset_function(struct pci_dev *dev);
 int pci_probe_reset_slot(struct pci_slot *slot);
 int pci_reset_slot(struct pci_slot *slot);
+int pci_try_reset_slot(struct pci_slot *slot);
 int pci_probe_reset_bus(struct pci_bus *bus);
 int pci_reset_bus(struct pci_bus *bus);
+int pci_try_reset_bus(struct pci_bus *bus);
 void pci_reset_bridge_secondary_bus(struct pci_dev *dev);
 void pci_update_resource(struct pci_dev *dev, int resno);
 int __must_check pci_assign_resource(struct pci_dev *dev, int i);
@@ -974,9 +975,14 @@ void __iomem __must_check *pci_platform_rom(struct pci_dev *pdev, size_t *size);
 int pci_save_state(struct pci_dev *dev);
 void pci_restore_state(struct pci_dev *dev);
 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);
@@ -985,7 +991,6 @@ void pci_pme_active(struct pci_dev *dev, bool enable);
 int __pci_enable_wake(struct pci_dev *dev, pci_power_t state,
 		      bool runtime, bool enable);
 int pci_wake_from_d3(struct pci_dev *dev, bool enable);
-pci_power_t pci_target_state(struct pci_dev *dev);
 int pci_prepare_to_sleep(struct pci_dev *dev);
 int pci_back_from_sleep(struct pci_dev *dev);
 bool pci_dev_run_wake(struct pci_dev *dev);
@@ -998,21 +1003,10 @@ static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state,
 	return __pci_enable_wake(dev, state, false, enable);
 }
 
-#define PCI_EXP_IDO_REQUEST	(1<<0)
-#define PCI_EXP_IDO_COMPLETION	(1<<1)
-void pci_enable_ido(struct pci_dev *dev, unsigned long type);
-void pci_disable_ido(struct pci_dev *dev, unsigned long type);
-
-enum pci_obff_signal_type {
-	PCI_EXP_OBFF_SIGNAL_L0 = 0,
-	PCI_EXP_OBFF_SIGNAL_ALWAYS = 1,
-};
-int pci_enable_obff(struct pci_dev *dev, enum pci_obff_signal_type);
-void pci_disable_obff(struct pci_dev *dev);
-
-int pci_enable_ltr(struct pci_dev *dev);
-void pci_disable_ltr(struct pci_dev *dev);
-int pci_set_ltr(struct pci_dev *dev, int snoop_lat_ns, int nosnoop_lat_ns);
+/* PCI Virtual Channel */
+int pci_save_vc_state(struct pci_dev *dev);
+void pci_restore_vc_state(struct pci_dev *dev);
+void pci_allocate_vc_save_buffers(struct pci_dev *dev);
 
 /* For use by arch with custom probe code */
 void set_pcie_port_type(struct pci_dev *pdev);
@@ -1022,11 +1016,12 @@ void set_pcie_hotplug_bridge(struct pci_dev *pdev);
 int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap);
 unsigned int pci_rescan_bus_bridge_resize(struct pci_dev *bridge);
 unsigned int pci_rescan_bus(struct pci_bus *bus);
+void pci_lock_rescan_remove(void);
+void pci_unlock_rescan_remove(void);
 
 /* Vital product data routines */
 ssize_t pci_read_vpd(struct pci_dev *dev, loff_t pos, size_t count, void *buf);
 ssize_t pci_write_vpd(struct pci_dev *dev, loff_t pos, size_t count, const void *buf);
-int pci_vpd_truncate(struct pci_dev *dev, size_t size);
 
 /* Helper functions for low-level code (drivers/pci/setup-[bus,res].c) */
 resource_size_t pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx);
@@ -1078,6 +1073,14 @@ int __must_check pci_bus_alloc_resource(struct pci_bus *bus,
 						  resource_size_t),
 			void *alignf_data);
 
+static inline dma_addr_t pci_bus_address(struct pci_dev *pdev, int bar)
+{
+	struct pci_bus_region region;
+
+	pcibios_resource_to_bus(pdev->bus, &region, &pdev->resource[bar]);
+	return region.start;
+}
+
 /* Proper probing supporting hot-pluggable devices */
 int __must_check __pci_register_driver(struct pci_driver *, struct module *,
 				       const char *mod_name);
@@ -1115,7 +1118,6 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max,
 
 void pci_walk_bus(struct pci_bus *top, int (*cb)(struct pci_dev *, void *),
 		  void *userdata);
-int pci_cfg_space_size_ext(struct pci_dev *dev);
 int pci_cfg_space_size(struct pci_dev *dev);
 unsigned char pci_bus_max_busnr(struct pci_bus *bus);
 void pci_setup_bridge(struct pci_bus *bus);
@@ -1154,59 +1156,42 @@ struct msix_entry {
 };
 
 
-#ifndef CONFIG_PCI_MSI
-static inline int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec)
-{
-	return -1;
-}
-
-static inline int
-pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec)
-{
-	return -1;
-}
-
-static inline void pci_msi_shutdown(struct pci_dev *dev)
-{ }
-static inline void pci_disable_msi(struct pci_dev *dev)
-{ }
-
-static inline int pci_msix_table_size(struct pci_dev *dev)
-{
-	return 0;
-}
-static inline int pci_enable_msix(struct pci_dev *dev,
-				  struct msix_entry *entries, int nvec)
-{
-	return -1;
-}
-
-static inline void pci_msix_shutdown(struct pci_dev *dev)
-{ }
-static inline void pci_disable_msix(struct pci_dev *dev)
-{ }
-
-static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev)
-{ }
-
-static inline void pci_restore_msi_state(struct pci_dev *dev)
-{ }
-static inline int pci_msi_enabled(void)
-{
-	return 0;
-}
-#else
-int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec);
-int pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec);
+#ifdef CONFIG_PCI_MSI
+int pci_msi_vec_count(struct pci_dev *dev);
+int pci_enable_msi_block(struct pci_dev *dev, int nvec);
 void pci_msi_shutdown(struct pci_dev *dev);
 void pci_disable_msi(struct pci_dev *dev);
-int pci_msix_table_size(struct pci_dev *dev);
+int pci_msix_vec_count(struct pci_dev *dev);
 int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec);
 void pci_msix_shutdown(struct pci_dev *dev);
 void pci_disable_msix(struct pci_dev *dev);
 void msi_remove_pci_irq_vectors(struct pci_dev *dev);
 void pci_restore_msi_state(struct pci_dev *dev);
 int pci_msi_enabled(void);
+int pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec);
+int pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries,
+			  int minvec, int maxvec);
+#else
+static inline int pci_msi_vec_count(struct pci_dev *dev) { return -ENOSYS; }
+static inline int pci_enable_msi_block(struct pci_dev *dev, int nvec)
+{ return -ENOSYS; }
+static inline void pci_msi_shutdown(struct pci_dev *dev) { }
+static inline void pci_disable_msi(struct pci_dev *dev) { }
+static inline int pci_msix_vec_count(struct pci_dev *dev) { return -ENOSYS; }
+static inline int pci_enable_msix(struct pci_dev *dev,
+				  struct msix_entry *entries, int nvec)
+{ return -ENOSYS; }
+static inline void pci_msix_shutdown(struct pci_dev *dev) { }
+static inline void pci_disable_msix(struct pci_dev *dev) { }
+static inline void msi_remove_pci_irq_vectors(struct pci_dev *dev) { }
+static inline void pci_restore_msi_state(struct pci_dev *dev) { }
+static inline int pci_msi_enabled(void) { return 0; }
+static inline int pci_enable_msi_range(struct pci_dev *dev, int minvec,
+				       int maxvec)
+{ return -ENOSYS; }
+static inline int pci_enable_msix_range(struct pci_dev *dev,
+		      struct msix_entry *entries, int minvec, int maxvec)
+{ return -ENOSYS; }
 #endif
 
 #ifdef CONFIG_PCIEPORTBUS
@@ -1217,12 +1202,10 @@ extern bool pcie_ports_auto;
 #define pcie_ports_auto		false
 #endif
 
-#ifndef CONFIG_PCIEASPM
-static inline int pcie_aspm_enabled(void) { return 0; }
-static inline bool pcie_aspm_support_enabled(void) { return false; }
-#else
-int pcie_aspm_enabled(void);
+#ifdef CONFIG_PCIEASPM
 bool pcie_aspm_support_enabled(void);
+#else
+static inline bool pcie_aspm_support_enabled(void) { return false; }
 #endif
 
 #ifdef CONFIG_PCIEAER
@@ -1233,15 +1216,12 @@ static inline void pci_no_aer(void) { }
 static inline bool pci_aer_available(void) { return false; }
 #endif
 
-#ifndef CONFIG_PCIE_ECRC
-static inline void pcie_set_ecrc_checking(struct pci_dev *dev)
-{
-	return;
-}
-static inline void pcie_ecrc_get_policy(char *str) {};
-#else
+#ifdef CONFIG_PCIE_ECRC
 void pcie_set_ecrc_checking(struct pci_dev *dev);
 void pcie_ecrc_get_policy(char *str);
+#else
+static inline void pcie_set_ecrc_checking(struct pci_dev *dev) { }
+static inline void pcie_ecrc_get_policy(char *str) { }
 #endif
 
 #define pci_enable_msi(pdev)	pci_enable_msi_block(pdev, 1)
@@ -1265,15 +1245,8 @@ void pci_cfg_access_unlock(struct pci_dev *dev);
 extern int pci_domains_supported;
 #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_domain_nr(struct pci_bus *bus) { return 0; }
+static inline int pci_proc_domain(struct pci_bus *bus) { return 0; }
 #endif /* CONFIG_PCI_DOMAINS */
 
 /* some architectures require additional setup to direct VGA traffic */
@@ -1302,180 +1275,88 @@ _PCI_NOP_ALL(write,)
 static inline struct pci_dev *pci_get_device(unsigned int vendor,
 					     unsigned int device,
 					     struct pci_dev *from)
-{
-	return NULL;
-}
+{ return NULL; }
 
 static inline struct pci_dev *pci_get_subsys(unsigned int vendor,
 					     unsigned int device,
 					     unsigned int ss_vendor,
 					     unsigned int ss_device,
 					     struct pci_dev *from)
-{
-	return NULL;
-}
+{ return NULL; }
 
 static inline struct pci_dev *pci_get_class(unsigned int class,
 					    struct pci_dev *from)
-{
-	return NULL;
-}
+{ return NULL; }
 
 #define pci_dev_present(ids)	(0)
 #define no_pci_devices()	(1)
 #define pci_dev_put(dev)	do { } while (0)
 
-static inline void pci_set_master(struct pci_dev *dev)
-{ }
-
-static inline int pci_enable_device(struct pci_dev *dev)
-{
-	return -EIO;
-}
-
-static inline void pci_disable_device(struct pci_dev *dev)
-{ }
-
+static inline void pci_set_master(struct pci_dev *dev) { }
+static inline int pci_enable_device(struct pci_dev *dev) { return -EIO; }
+static inline void pci_disable_device(struct pci_dev *dev) { }
 static inline int pci_set_dma_mask(struct pci_dev *dev, u64 mask)
-{
-	return -EIO;
-}
-
+{ return -EIO; }
 static inline int pci_set_consistent_dma_mask(struct pci_dev *dev, u64 mask)
-{
-	return -EIO;
-}
-
+{ return -EIO; }
 static inline int pci_set_dma_max_seg_size(struct pci_dev *dev,
 					unsigned int size)
-{
-	return -EIO;
-}
-
+{ return -EIO; }
 static inline int pci_set_dma_seg_boundary(struct pci_dev *dev,
 					unsigned long mask)
-{
-	return -EIO;
-}
-
+{ return -EIO; }
 static inline int pci_assign_resource(struct pci_dev *dev, int i)
-{
-	return -EBUSY;
-}
-
+{ return -EBUSY; }
 static inline int __pci_register_driver(struct pci_driver *drv,
 					struct module *owner)
-{
-	return 0;
-}
-
+{ return 0; }
 static inline int pci_register_driver(struct pci_driver *drv)
-{
-	return 0;
-}
-
-static inline void pci_unregister_driver(struct pci_driver *drv)
-{ }
-
+{ return 0; }
+static inline void pci_unregister_driver(struct pci_driver *drv) { }
 static inline int pci_find_capability(struct pci_dev *dev, int cap)
-{
-	return 0;
-}
-
+{ return 0; }
 static inline int pci_find_next_capability(struct pci_dev *dev, u8 post,
 					   int cap)
-{
-	return 0;
-}
-
+{ return 0; }
 static inline int pci_find_ext_capability(struct pci_dev *dev, int cap)
-{
-	return 0;
-}
+{ return 0; }
 
 /* Power management related routines */
-static inline int pci_save_state(struct pci_dev *dev)
-{
-	return 0;
-}
-
-static inline void pci_restore_state(struct pci_dev *dev)
-{ }
-
+static inline int pci_save_state(struct pci_dev *dev) { return 0; }
+static inline void pci_restore_state(struct pci_dev *dev) { }
 static inline int pci_set_power_state(struct pci_dev *dev, pci_power_t state)
-{
-	return 0;
-}
-
+{ return 0; }
 static inline int pci_wake_from_d3(struct pci_dev *dev, bool enable)
-{
-	return 0;
-}
-
+{ return 0; }
 static inline pci_power_t pci_choose_state(struct pci_dev *dev,
 					   pm_message_t state)
-{
-	return PCI_D0;
-}
-
+{ return PCI_D0; }
 static inline int pci_enable_wake(struct pci_dev *dev, pci_power_t state,
 				  int enable)
-{
-	return 0;
-}
-
-static inline void pci_enable_ido(struct pci_dev *dev, unsigned long type)
-{
-}
-
-static inline void pci_disable_ido(struct pci_dev *dev, unsigned long type)
-{
-}
-
-static inline int pci_enable_obff(struct pci_dev *dev, unsigned long type)
-{
-	return 0;
-}
-
-static inline void pci_disable_obff(struct pci_dev *dev)
-{
-}
+{ return 0; }
 
 static inline int pci_request_regions(struct pci_dev *dev, const char *res_name)
-{
-	return -EIO;
-}
-
-static inline void pci_release_regions(struct pci_dev *dev)
-{ }
+{ return -EIO; }
+static inline void pci_release_regions(struct pci_dev *dev) { }
 
 #define pci_dma_burst_advice(pdev, strat, strategy_parameter) do { } while (0)
 
-static inline void pci_block_cfg_access(struct pci_dev *dev)
-{ }
-
+static inline void pci_block_cfg_access(struct pci_dev *dev) { }
 static inline int pci_block_cfg_access_in_atomic(struct pci_dev *dev)
 { return 0; }
-
-static inline void pci_unblock_cfg_access(struct pci_dev *dev)
-{ }
+static inline void pci_unblock_cfg_access(struct pci_dev *dev) { }
 
 static inline struct pci_bus *pci_find_next_bus(const struct pci_bus *from)
 { return NULL; }
-
 static inline struct pci_dev *pci_get_slot(struct pci_bus *bus,
 						unsigned int devfn)
 { return NULL; }
-
 static inline struct pci_dev *pci_get_bus_and_slot(unsigned int bus,
 						unsigned int devfn)
 { return NULL; }
 
-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_domain_nr(struct pci_bus *bus) { return 0; }
+static inline struct pci_dev *pci_dev_get(struct pci_dev *dev) { return NULL; }
 
 #define dev_is_pci(d) (false)
 #define dev_is_pf(d) (false)
@@ -1486,10 +1367,6 @@ static inline struct pci_dev *pci_dev_get(struct pci_dev *dev)
 
 #include <asm/pci.h>
 
-#ifndef PCIBIOS_MAX_MEM_32
-#define PCIBIOS_MAX_MEM_32 (-1)
-#endif
-
 /* these helpers provide future and backwards compatibility
  * for accessing popular PCI BAR info */
 #define pci_resource_start(dev, bar)	((dev)->resource[(bar)].start)
@@ -1635,7 +1512,7 @@ struct pci_dev *pci_get_dma_source(struct pci_dev *dev);
 int pci_dev_specific_acs_enabled(struct pci_dev *dev, u16 acs_flags);
 #else
 static inline void pci_fixup_device(enum pci_fixup_pass pass,
-				    struct pci_dev *dev) {}
+				    struct pci_dev *dev) { }
 static inline struct pci_dev *pci_get_dma_source(struct pci_dev *dev)
 {
 	return pci_dev_get(dev);
@@ -1707,32 +1584,17 @@ int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs);
 int pci_sriov_get_totalvfs(struct pci_dev *dev);
 #else
 static inline int pci_enable_sriov(struct pci_dev *dev, int nr_virtfn)
-{
-	return -ENODEV;
-}
-static inline void pci_disable_sriov(struct pci_dev *dev)
-{
-}
+{ return -ENODEV; }
+static inline void pci_disable_sriov(struct pci_dev *dev) { }
 static inline irqreturn_t pci_sriov_migration(struct pci_dev *dev)
-{
-	return IRQ_NONE;
-}
-static inline int pci_num_vf(struct pci_dev *dev)
-{
-	return 0;
-}
+{ return IRQ_NONE; }
+static inline int pci_num_vf(struct pci_dev *dev) { return 0; }
 static inline int pci_vfs_assigned(struct pci_dev *dev)
-{
-	return 0;
-}
+{ return 0; }
 static inline int pci_sriov_set_totalvfs(struct pci_dev *dev, u16 numvfs)
-{
-	return 0;
-}
+{ return 0; }
 static inline int pci_sriov_get_totalvfs(struct pci_dev *dev)
-{
-	return 0;
-}
+{ return 0; }
 #endif
 
 #if defined(CONFIG_HOTPLUG_PCI) || defined(CONFIG_HOTPLUG_PCI_MODULE)

include/uapi/linux/pci_regs.h

@@ -518,8 +518,16 @@
 #define  PCI_EXP_SLTCTL_CCIE	0x0010	/* Command Completed Interrupt Enable */
 #define  PCI_EXP_SLTCTL_HPIE	0x0020	/* Hot-Plug Interrupt Enable */
 #define  PCI_EXP_SLTCTL_AIC	0x00c0	/* Attention Indicator Control */
+#define  PCI_EXP_SLTCTL_ATTN_IND_ON    0x0040 /* Attention Indicator on */
+#define  PCI_EXP_SLTCTL_ATTN_IND_BLINK 0x0080 /* Attention Indicator blinking */
+#define  PCI_EXP_SLTCTL_ATTN_IND_OFF   0x00c0 /* Attention Indicator off */
 #define  PCI_EXP_SLTCTL_PIC	0x0300	/* Power Indicator Control */
+#define  PCI_EXP_SLTCTL_PWR_IND_ON     0x0100 /* Power Indicator on */
+#define  PCI_EXP_SLTCTL_PWR_IND_BLINK  0x0200 /* Power Indicator blinking */
+#define  PCI_EXP_SLTCTL_PWR_IND_OFF    0x0300 /* Power Indicator off */
 #define  PCI_EXP_SLTCTL_PCC	0x0400	/* Power Controller Control */
+#define  PCI_EXP_SLTCTL_PWR_ON         0x0000 /* Power On */
+#define  PCI_EXP_SLTCTL_PWR_OFF        0x0400 /* Power Off */
 #define  PCI_EXP_SLTCTL_EIC	0x0800	/* Electromechanical Interlock Control */
 #define  PCI_EXP_SLTCTL_DLLSCE	0x1000	/* Data Link Layer State Changed Enable */
 #define PCI_EXP_SLTSTA		26	/* Slot Status */
@@ -677,17 +685,34 @@
 #define PCI_ERR_ROOT_ERR_SRC	52	/* Error Source Identification */
 
 /* Virtual Channel */
-#define PCI_VC_PORT_REG1	4
-#define  PCI_VC_REG1_EVCC	0x7	/* extended VC count */
-#define PCI_VC_PORT_REG2	8
-#define  PCI_VC_REG2_32_PHASE	0x2
-#define  PCI_VC_REG2_64_PHASE	0x4
-#define  PCI_VC_REG2_128_PHASE	0x8
+#define PCI_VC_PORT_CAP1	4
+#define  PCI_VC_CAP1_EVCC	0x00000007	/* extended VC count */
+#define  PCI_VC_CAP1_LPEVCC	0x00000070	/* low prio extended VC count */
+#define  PCI_VC_CAP1_ARB_SIZE	0x00000c00
+#define PCI_VC_PORT_CAP2	8
+#define  PCI_VC_CAP2_32_PHASE		0x00000002
+#define  PCI_VC_CAP2_64_PHASE		0x00000004
+#define  PCI_VC_CAP2_128_PHASE		0x00000008
+#define  PCI_VC_CAP2_ARB_OFF		0xff000000
 #define PCI_VC_PORT_CTRL	12
+#define  PCI_VC_PORT_CTRL_LOAD_TABLE	0x00000001
 #define PCI_VC_PORT_STATUS	14
+#define  PCI_VC_PORT_STATUS_TABLE	0x00000001
 #define PCI_VC_RES_CAP		16
+#define  PCI_VC_RES_CAP_32_PHASE	0x00000002
+#define  PCI_VC_RES_CAP_64_PHASE	0x00000004
+#define  PCI_VC_RES_CAP_128_PHASE	0x00000008
+#define  PCI_VC_RES_CAP_128_PHASE_TB	0x00000010
+#define  PCI_VC_RES_CAP_256_PHASE	0x00000020
+#define  PCI_VC_RES_CAP_ARB_OFF		0xff000000
 #define PCI_VC_RES_CTRL		20
+#define  PCI_VC_RES_CTRL_LOAD_TABLE	0x00010000
+#define  PCI_VC_RES_CTRL_ARB_SELECT	0x000e0000
+#define  PCI_VC_RES_CTRL_ID		0x07000000
+#define  PCI_VC_RES_CTRL_ENABLE		0x80000000
 #define PCI_VC_RES_STATUS	26
+#define  PCI_VC_RES_STATUS_TABLE	0x00000001
+#define  PCI_VC_RES_STATUS_NEGO		0x00000002
 #define PCI_CAP_VC_BASE_SIZEOF		0x10
 #define PCI_CAP_VC_PER_VC_SIZEOF	0x0C