Merge tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "PCI changes for v4.6:

  Enumeration:
   - Disable IO/MEM decoding for devices with non-compliant BARs (Bjorn Helgaas)
   - Mark Broadwell-EP Home Agent & PCU as having non-compliant BARs (Bjorn Helgaas

  Resource management:
   - Mark shadow copy of VGA ROM as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
   - Don't assign or reassign immutable resources (Bjorn Helgaas)
   - Don't enable/disable ROM BAR if we're using a RAM shadow copy (Bjorn Helgaas)
   - Set ROM shadow location in arch code, not in PCI core (Bjorn Helgaas)
   - Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs (Bjorn Helgaas)
   - ia64: Use ioremap() instead of open-coded equivalent (Bjorn Helgaas)
   - ia64: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
   - MIPS: Keep CPU physical (not virtual) addresses in shadow ROM resource (Bjorn Helgaas)
   - Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY (Bjorn Helgaas)
   - Don't leak memory if sysfs_create_bin_file() fails (Bjorn Helgaas)
   - rcar: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)
   - designware: Remove PCI_PROBE_ONLY handling (Lorenzo Pieralisi)

  Virtualization:
   - Wait for up to 1000ms after FLR reset (Alex Williamson)
   - Support SR-IOV on any function type (Kelly Zytaruk)
   - Add ACS quirk for all Cavium devices (Manish Jaggi)

  AER:
   - Rename pci_ops_aer to aer_inj_pci_ops (Bjorn Helgaas)
   - Restore pci_ops pointer while calling original pci_ops (David Daney)
   - Fix aer_inject error codes (Jean Delvare)
   - Use dev_warn() in aer_inject (Jean Delvare)
   - Log actual error causes in aer_inject (Jean Delvare)
   - Log aer_inject error injections (Jean Delvare)

  VPD:
   - Prevent VPD access for buggy devices (Babu Moger)
   - Move pci_read_vpd() and pci_write_vpd() close to other VPD code (Bjorn Helgaas)
   - Move pci_vpd_release() from header file to pci/access.c (Bjorn Helgaas)
   - Remove struct pci_vpd_ops.release function pointer (Bjorn Helgaas)
   - Rename VPD symbols to remove unnecessary "pci22" (Bjorn Helgaas)
   - Fold struct pci_vpd_pci22 into struct pci_vpd (Bjorn Helgaas)
   - Sleep rather than busy-wait for VPD access completion (Bjorn Helgaas)
   - Update VPD definitions (Hannes Reinecke)
   - Allow access to VPD attributes with size 0 (Hannes Reinecke)
   - Determine actual VPD size on first access (Hannes Reinecke)

  Generic host bridge driver:
   - Move structure definitions to separate header file (David Daney)
   - Add pci_host_common_probe(), based on gen_pci_probe() (David Daney)
   - Expose pci_host_common_probe() for use by other drivers (David Daney)

  Altera host bridge driver:
   - Fix altera_pcie_link_is_up() (Ley Foon Tan)

  Cavium ThunderX host bridge driver:
   - Add PCIe host driver for ThunderX processors (David Daney)
   - Add driver for ThunderX-pass{1,2} on-chip devices (David Daney)

  Freescale i.MX6 host bridge driver:
   - Add DT bindings to configure PHY Tx driver settings (Justin Waters)
   - Move imx6_pcie_reset_phy() near other PHY handling functions (Lucas Stach)
   - Move PHY reset into imx6_pcie_establish_link() (Lucas Stach)
   - Remove broken Gen2 workaround (Lucas Stach)
   - Move link up check into imx6_pcie_wait_for_link() (Lucas Stach)

  Freescale Layerscape host bridge driver:
   - Add "fsl,ls2085a-pcie" compatible ID (Yang Shi)

  Intel VMD host bridge driver:
   - Attach VMD resources to parent domain's resource tree (Jon Derrick)
   - Set bus resource start to 0 (Keith Busch)

  Microsoft Hyper-V host bridge driver:
   - Add fwnode_handle to x86 pci_sysdata (Jake Oshins)
   - Look up IRQ domain by fwnode_handle (Jake Oshins)
   - Add paravirtual PCI front-end for Microsoft Hyper-V VMs (Jake Oshins)

  NVIDIA Tegra host bridge driver:
   - Add pci_ops.{add,remove}_bus() callbacks (Thierry Reding)
   - Implement ->{add,remove}_bus() callbacks (Thierry Reding)
   - Remove unused struct tegra_pcie.num_ports field (Thierry Reding)
   - Track bus -> CPU mapping (Thierry Reding)
   - Remove misleading PHYS_OFFSET (Thierry Reding)

  Renesas R-Car host bridge driver:
   - Depend on ARCH_RENESAS, not ARCH_SHMOBILE (Simon Horman)

  Synopsys DesignWare host bridge driver:
   - ARC: Add PCI support (Joao Pinto)
   - Add generic dw_pcie_wait_for_link() (Joao Pinto)
   - Add default link up check if sub-driver doesn't override (Joao Pinto)
   - Add driver for prototyping kits based on ARC SDP (Joao Pinto)

  TI Keystone host bridge driver:
   - Defer probing if devm_phy_get() returns -EPROBE_DEFER (Shawn Lin)

  Xilinx AXI host bridge driver:
   - Use of_pci_get_host_bridge_resources() to parse DT (Bharat Kumar Gogada)
   - Remove dependency on ARM-specific struct hw_pci (Bharat Kumar Gogada)
   - Don't call pci_fixup_irqs() on Microblaze (Bharat Kumar Gogada)
   - Update Zynq binding with Microblaze node (Bharat Kumar Gogada)
   - microblaze: Support generic Xilinx AXI PCIe Host Bridge IP driver (Bharat Kumar Gogada)

  Xilinx NWL host bridge driver:
   - Add support for Xilinx NWL PCIe Host Controller (Bharat Kumar Gogada)

  Miscellaneous:
   - Check device_attach() return value always (Bjorn Helgaas)
   - Move pci_set_flags() from asm-generic/pci-bridge.h to linux/pci.h (Bjorn Helgaas)
   - Remove includes of empty asm-generic/pci-bridge.h (Bjorn Helgaas)
   - ARM64: Remove generated include of asm-generic/pci-bridge.h (Bjorn Helgaas)
   - Remove empty asm-generic/pci-bridge.h (Bjorn Helgaas)
   - Remove includes of asm/pci-bridge.h (Bjorn Helgaas)
   - Consolidate PCI DMA constants and interfaces in linux/pci-dma-compat.h (Bjorn Helgaas)
   - unicore32: Remove unused HAVE_ARCH_PCI_SET_DMA_MASK definition (Bjorn Helgaas)
   - Cleanup pci/pcie/Kconfig whitespace (Andreas Ziegler)
   - Include pci/hotplug Kconfig directly from pci/Kconfig (Bjorn Helgaas)
   - Include pci/pcie/Kconfig directly from pci/Kconfig (Bogicevic Sasa)
   - frv: Remove stray pci_{alloc,free}_consistent() declaration (Christoph Hellwig)
   - Move pci_dma_* helpers to common code (Christoph Hellwig)
   - Add PCI_CLASS_SERIAL_USB_DEVICE definition (Heikki Krogerus)
   - Add QEMU top-level IDs for (sub)vendor & device (Robin H. Johnson)
   - Fix broken URL for Dell biosdevname (Naga Venkata Sai Indubhaskar Jupudi)"

* tag 'pci-v4.6-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (94 commits)
  PCI: Add PCI_CLASS_SERIAL_USB_DEVICE definition
  PCI: designware: Add driver for prototyping kits based on ARC SDP
  PCI: designware: Add default link up check if sub-driver doesn't override
  PCI: designware: Add generic dw_pcie_wait_for_link()
  PCI: Cleanup pci/pcie/Kconfig whitespace
  PCI: Simplify pci_create_attr() control flow
  PCI: Don't leak memory if sysfs_create_bin_file() fails
  PCI: Simplify sysfs ROM cleanup
  PCI: Remove unused IORESOURCE_ROM_COPY and IORESOURCE_ROM_BIOS_COPY
  MIPS: Loongson 3: Keep CPU physical (not virtual) addresses in shadow ROM resource
  MIPS: Loongson 3: Use temporary struct resource * to avoid repetition
  ia64/PCI: Keep CPU physical (not virtual) addresses in shadow ROM resource
  ia64/PCI: Use ioremap() instead of open-coded equivalent
  ia64/PCI: Use temporary struct resource * to avoid repetition
  PCI: Clean up pci_map_rom() whitespace
  PCI: Remove arch-specific IORESOURCE_ROM_SHADOW size from sysfs
  PCI: thunder: Add driver for ThunderX-pass{1,2} on-chip devices
  PCI: thunder: Add PCIe host driver for ThunderX processors
  PCI: generic: Expose pci_host_common_probe() for use by other drivers
  PCI: generic: Add pci_host_common_probe(), based on gen_pci_probe()
  ...

5 files changed, 48 insertions, 52 deletions

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index fb0515eb639b..b534ebab36ea 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -574,12 +574,8 @@ config PCI_DOMAINS
 config PCI_SYSCALL
 	def_bool PCI
 
-source "drivers/pci/pcie/Kconfig"
-
 source "drivers/pci/Kconfig"
 
-source "drivers/pci/hotplug/Kconfig"
-
 source "drivers/pcmcia/Kconfig"
 
 endmenu
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 07039d168f37..c0835b0dc722 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -50,8 +50,6 @@ struct pci_dev;
 extern unsigned long ia64_max_iommu_merge_mask;
 #define PCI_DMA_BUS_IS_PHYS	(ia64_max_iommu_merge_mask == ~0UL)
 
-#include <asm-generic/pci-dma-compat.h>
-
 #define HAVE_PCI_MMAP
 extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
 				enum pci_mmap_state mmap_state, int write_combine);
diff --git a/arch/ia64/pci/fixup.c b/arch/ia64/pci/fixup.c
index fc505d58f078..41caa99add51 100644
--- a/arch/ia64/pci/fixup.c
+++ b/arch/ia64/pci/fixup.c
@@ -17,14 +17,14 @@
  *
  * The standard boot ROM sequence for an x86 machine uses the BIOS
  * to select an initial video card for boot display. This boot video
- * card will have it's BIOS copied to C0000 in system RAM.
+ * card will have its BIOS copied to 0xC0000 in system RAM.
  * IORESOURCE_ROM_SHADOW is used to associate the boot video
  * card with this copy. On laptops this copy has to be used since
  * the main ROM may be compressed or combined with another image.
  * See pci_map_rom() for use of this flag. Before marking the device
  * with IORESOURCE_ROM_SHADOW check if a vga_default_device is already set
- * by either arch cde or vga-arbitration, if so only apply the fixup to this
- * already determined primary video card.
+ * by either arch code or vga-arbitration; if so only apply the fixup to this
+ * already-determined primary video card.
  */
 
 static void pci_fixup_video(struct pci_dev *pdev)
@@ -32,6 +32,7 @@ static void pci_fixup_video(struct pci_dev *pdev)
 	struct pci_dev *bridge;
 	struct pci_bus *bus;
 	u16 config;
+	struct resource *res;
 
 	if ((strcmp(ia64_platform_name, "dig") != 0)
 	    && (strcmp(ia64_platform_name, "hpzx1")  != 0))
@@ -61,8 +62,18 @@ static void pci_fixup_video(struct pci_dev *pdev)
 	if (!vga_default_device() || pdev == vga_default_device()) {
 		pci_read_config_word(pdev, PCI_COMMAND, &config);
 		if (config & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) {
-			pdev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_SHADOW;
-			dev_printk(KERN_DEBUG, &pdev->dev, "Video device with shadowed ROM\n");
+			res = &pdev->resource[PCI_ROM_RESOURCE];
+
+			pci_disable_rom(pdev);
+			if (res->parent)
+				release_resource(res);
+
+			res->start = 0xC0000;
+			res->end = res->start + 0x20000 - 1;
+			res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW |
+				     IORESOURCE_PCI_FIXED;
+			dev_info(&pdev->dev, "Video device with shadowed ROM at %pR\n",
+				 res);
 		}
 	}
 }
diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c
index 0640739cc20c..231234c8d113 100644
--- a/arch/ia64/sn/kernel/io_acpi_init.c
+++ b/arch/ia64/sn/kernel/io_acpi_init.c
@@ -429,7 +429,8 @@ sn_acpi_slot_fixup(struct pci_dev *dev)
 	void __iomem *addr;
 	struct pcidev_info *pcidev_info = NULL;
 	struct sn_irq_info *sn_irq_info = NULL;
-	size_t image_size, size;
+	struct resource *res;
+	size_t size;
 
 	if (sn_acpi_get_pcidev_info(dev, &pcidev_info, &sn_irq_info)) {
 		panic("%s:  Failure obtaining pcidev_info for %s\n",
@@ -443,17 +444,20 @@ sn_acpi_slot_fixup(struct pci_dev *dev)
 		 * of the shadowed copy, and the actual length of the ROM image.
 		 */
 		size = pci_resource_len(dev, PCI_ROM_RESOURCE);
-		addr = ioremap(pcidev_info->pdi_pio_mapped_addr[PCI_ROM_RESOURCE],
-			       size);
-		image_size = pci_get_rom_size(dev, addr, size);
-		dev->resource[PCI_ROM_RESOURCE].start = (unsigned long) addr;
-		dev->resource[PCI_ROM_RESOURCE].end =
-					(unsigned long) addr + image_size - 1;
-		dev->resource[PCI_ROM_RESOURCE].flags |= IORESOURCE_ROM_BIOS_COPY;
+
+		res = &dev->resource[PCI_ROM_RESOURCE];
+
+		pci_disable_rom(dev);
+		if (res->parent)
+			release_resource(res);
+
+		res->start = pcidev_info->pdi_pio_mapped_addr[PCI_ROM_RESOURCE];
+		res->end = res->start + size - 1;
+		res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW |
+			     IORESOURCE_PCI_FIXED;
 	}
 	sn_pci_fixup_slot(dev, pcidev_info, sn_irq_info);
 }
-
 EXPORT_SYMBOL(sn_acpi_slot_fixup);
 
 
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 1be65eb074ec..c15a41e2d1f2 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -150,7 +150,8 @@ void
 sn_io_slot_fixup(struct pci_dev *dev)
 {
 	int idx;
-	unsigned long addr, end, size, start;
+	struct resource *res;
+	unsigned long addr, size;
 	struct pcidev_info *pcidev_info;
 	struct sn_irq_info *sn_irq_info;
 	int status;
@@ -175,55 +176,41 @@ sn_io_slot_fixup(struct pci_dev *dev)
 
 	/* Copy over PIO Mapped Addresses */
 	for (idx = 0; idx <= PCI_ROM_RESOURCE; idx++) {
-
-		if (!pcidev_info->pdi_pio_mapped_addr[idx]) {
+		if (!pcidev_info->pdi_pio_mapped_addr[idx])
 			continue;
-		}
 
-		start = dev->resource[idx].start;
-		end = dev->resource[idx].end;
-		size = end - start;
-		if (size == 0) {
+		res = &dev->resource[idx];
+
+		size = res->end - res->start;
+		if (size == 0)
 			continue;
-		}
-		addr = pcidev_info->pdi_pio_mapped_addr[idx];
-		addr = ((addr << 4) >> 4) | __IA64_UNCACHED_OFFSET;
-		dev->resource[idx].start = addr;
-		dev->resource[idx].end = addr + size;
+
+		res->start = pcidev_info->pdi_pio_mapped_addr[idx];
+		res->end = addr + size;
 
 		/*
 		 * if it's already in the device structure, remove it before
 		 * inserting
 		 */
-		if (dev->resource[idx].parent && dev->resource[idx].parent->child)
-			release_resource(&dev->resource[idx]);
+		if (res->parent && res->parent->child)
+			release_resource(res);
 
-		if (dev->resource[idx].flags & IORESOURCE_IO)
-			insert_resource(&ioport_resource, &dev->resource[idx]);
+		if (res->flags & IORESOURCE_IO)
+			insert_resource(&ioport_resource, res);
 		else
-			insert_resource(&iomem_resource, &dev->resource[idx]);
+			insert_resource(&iomem_resource, res);
 		/*
-		 * If ROM, set the actual ROM image size, and mark as
-		 * shadowed in PROM.
+		 * If ROM, mark as shadowed in PROM.
 		 */
 		if (idx == PCI_ROM_RESOURCE) {
-			size_t image_size;
-			void __iomem *rom;
-
-			rom = ioremap(pci_resource_start(dev, PCI_ROM_RESOURCE),
-				      size + 1);
-			image_size = pci_get_rom_size(dev, rom, size + 1);
-			dev->resource[PCI_ROM_RESOURCE].end =
-				dev->resource[PCI_ROM_RESOURCE].start +
-				image_size - 1;
-			dev->resource[PCI_ROM_RESOURCE].flags |=
-						 IORESOURCE_ROM_BIOS_COPY;
+			pci_disable_rom(dev);
+			res->flags = IORESOURCE_MEM | IORESOURCE_ROM_SHADOW |
+				     IORESOURCE_PCI_FIXED;
 		}
 	}
 
 	sn_pci_fixup_slot(dev, pcidev_info, sn_irq_info);
 }
-
 EXPORT_SYMBOL(sn_io_slot_fixup);
 
 /*