Merge branch 'pci/resource'

- Build zero-sized resources when a BAR is larger than 4G but
  pci_bus_addr_t or resource_size_t can't represent 64-bit addresses (Ilpo
  Järvinen)

- Fix bridge window alignment with optional resources, where we previously
  lost the additional alignment requirement (Ilpo Järvinen)

- Stop over-estimating bridge window size since we now assign them without
  any gaps between them (Ilpo Järvinen)

- Increase resource MAX_IORES_LEVEL to avoid /proc/iomem flattening for
  nested bridges and endpoints (Ilpo Järvinen)

- Remove old_size limit from bridge window sizing (Ilpo Järvinen)

- Push realloc check into pbus_size_mem() to simplify callers (Ilpo
  Järvinen)

- Pass bridge window resource to pbus_size_mem() to avoid looking it up
  again (Ilpo Järvinen)

- Use res_to_dev_res() instead of open-coding the same search (Ilpo
  Järvinen)

- Add pci_resource_is_bridge_win() helper (Ilpo Järvinen)

- Add more logging of resource assignment (Ilpo Järvinen)

- Add pbus_mem_size_optional() to handle sizes of optional resources
  (SR-IOV VF BARs, expansion ROMs, bridge windows) (Ilpo Järvinen)

- Move CardBus code to setup-cardbus.c and only build it when
  CONFIG_CARDBUS is set (Ilpo Järvinen)

- Use scnprintf() instead of sprintf() (Ilpo Järvinen)

- Add pbus_validate_busn() for Bus Number validation (Ilpo Järvinen)

- Don't claim disabled bridge windows to avoid spurious claim failures
  (Ilpo Järvinen)

* pci/resource:
  PCI: Don't claim disabled bridge windows
  PCI: Move CardBus bridge scanning to setup-cardbus.c
  PCI: Add pbus_validate_busn() for Bus Number validation
  PCI: Add dword #defines for Bus Number + Secondary Latency Timer
  PCI: Use scnprintf() instead of sprintf()
  PCI: Handle CardBus-specific params in setup-cardbus.c
  PCI: Separate CardBus setup & build it only with CONFIG_CARDBUS
  PCI: Add 'pci' prefix to struct pci_dev_resource handling functions
  PCI: Use resource_assigned() in setup-bus.c algorithm
  resource: Mark res given to resource_assigned() as const
  PCI: Add pbus_mem_size_optional() to handle optional sizes
  PCI: Check invalid align earlier in pbus_size_mem()
  PCI: Log reset and restore of resources
  PCI: Add pci_resource_is_bridge_win()
  PCI: Fetch dev_res to local var in __assign_resources_sorted()
  PCI: Use res_to_dev_res() in reassign_resources_sorted()
  PCI: Pass bridge window resource to pbus_size_mem()
  PCI: Push realloc check into pbus_size_mem()
  PCI: Remove old_size limit from bridge window sizing
  resource: Increase MAX_IORES_LEVEL to 8
  PCI: Stop over-estimating bridge window size
  PCI: Rewrite bridge window head alignment function
  PCI: Fix bridge window alignment with optional resources
  PCI: Use resource_set_range() that correctly sets ->end

1 files changed, 5 insertions, 0 deletions

diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index 3add74ae2594..8be55ece2a21 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -132,6 +132,11 @@
 #define PCI_SECONDARY_BUS	0x19	/* Secondary bus number */
 #define PCI_SUBORDINATE_BUS	0x1a	/* Highest bus number behind the bridge */
 #define PCI_SEC_LATENCY_TIMER	0x1b	/* Latency timer for secondary interface */
+/* Masks for dword-sized processing of Bus Number and Sec Latency Timer fields */
+#define  PCI_PRIMARY_BUS_MASK		0x000000ff
+#define  PCI_SECONDARY_BUS_MASK		0x0000ff00
+#define  PCI_SUBORDINATE_BUS_MASK	0x00ff0000
+#define  PCI_SEC_LATENCY_TIMER_MASK	0xff000000
 #define PCI_IO_BASE		0x1c	/* I/O range behind the bridge */
 #define PCI_IO_LIMIT		0x1d
 #define  PCI_IO_RANGE_TYPE_MASK	0x0fUL	/* I/O bridging type */