Merge tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci into next

Pull PCI changes from Bjorn Helgaas:
 "Enumeration
    - Notify driver before and after device reset (Keith Busch)
    - Use reset notification in NVMe (Keith Busch)

  NUMA
    - Warn if we have to guess host bridge node information (Myron Stowe)
    - Work around AMD Fam15h BIOSes that fail to provide _PXM (Suravee
      Suthikulpanit)
    - Clean up and mark early_root_info_init() as deprecated (Suravee
      Suthikulpanit)

  Driver binding
    - Add "driver_override" for force specific binding (Alex Williamson)
    - Fail "new_id" addition for devices we already know about (Bandan
      Das)

  Resource management
    - Support BAR sizes up to 8GB (Nikhil Rao, Alan Cox)
    - Don't move IORESOURCE_PCI_FIXED resources (Bjorn Helgaas)
    - Mark SBx00 HPET BAR as IORESOURCE_PCI_FIXED (Bjorn Helgaas)
    - Fail safely if we can't handle BARs larger than 4GB (Bjorn Helgaas)
    - Reject BAR above 4GB if dma_addr_t is too small (Bjorn Helgaas)
    - Don't convert BAR address to resource if dma_addr_t is too small
      (Bjorn Helgaas)
    - Don't set BAR to zero if dma_addr_t is too small (Bjorn Helgaas)
    - Don't print anything while decoding is disabled (Bjorn Helgaas)
    - Don't add disabled subtractive decode bus resources (Bjorn Helgaas)
    - Add resource allocation comments (Bjorn Helgaas)
    - Restrict 64-bit prefetchable bridge windows to 64-bit resources
      (Yinghai Lu)
    - Assign i82875p_edac PCI resources before adding device (Yinghai Lu)

  PCI device hotplug
    - Remove unnecessary "dev->bus" test (Bjorn Helgaas)
    - Use PCI_EXP_SLTCAP_PSN define (Bjorn Helgaas)
    - Fix rphahp endianess issues (Laurent Dufour)
    - Acknowledge spurious "cmd completed" event (Rajat Jain)
    - Allow hotplug service drivers to operate in polling mode (Rajat Jain)
    - Fix cpqphp possible NULL dereference (Rickard Strandqvist)

  MSI
    - Replace pci_enable_msi_block() by pci_enable_msi_exact()
      (Alexander Gordeev)
    - Replace pci_enable_msix() by pci_enable_msix_exact() (Alexander Gordeev)
    - Simplify populate_msi_sysfs() (Jan Beulich)

  Virtualization
    - Add Intel Patsburg (X79) root port ACS quirk (Alex Williamson)
    - Mark RTL8110SC INTx masking as broken (Alex Williamson)

  Generic host bridge driver
    - Add generic PCI host controller driver (Will Deacon)

  Freescale i.MX6
    - Use new clock names (Lucas Stach)
    - Drop old IRQ mapping (Lucas Stach)
    - Remove optional (and unused) IRQs (Lucas Stach)
    - Add support for MSI (Lucas Stach)
    - Fix imx6_add_pcie_port() section mismatch warning (Sachin Kamat)

  Renesas R-Car
    - Add gen2 device tree support (Ben Dooks)
    - Use new OF interrupt mapping when possible (Lucas Stach)
    - Add PCIe driver (Phil Edworthy)
    - Add PCIe MSI support (Phil Edworthy)
    - Add PCIe device tree bindings (Phil Edworthy)

  Samsung Exynos
    - Remove unnecessary OOM messages (Jingoo Han)
    - Fix add_pcie_port() section mismatch warning (Sachin Kamat)

  Synopsys DesignWare
    - Make MSI ISR shared IRQ aware (Lucas Stach)

  Miscellaneous
    - Check for broken config space aliasing (Alex Williamson)
    - Update email address (Ben Hutchings)
    - Fix Broadcom CNB20LE unintended sign extension (Bjorn Helgaas)
    - Fix incorrect vgaarb conditional in WARN_ON() (Bjorn Helgaas)
    - Remove unnecessary __ref annotations (Bjorn Helgaas)
    - Add arch/x86/kernel/quirks.c to MAINTAINERS PCI file patterns
      (Bjorn Helgaas)
    - Fix use of uninitialized MPS value (Bjorn Helgaas)
    - Tidy x86/gart messages (Bjorn Helgaas)
    - Fix return value from pci_user_{read,write}_config_*() (Gavin Shan)
    - Turn pcibios_penalize_isa_irq() into a weak function (Hanjun Guo)
    - Remove unused serial device IDs (Jean Delvare)
    - Use designated initialization in PCI_VDEVICE (Mark Rustad)
    - Fix powerpc NULL dereference in pci_root_buses traversal (Mike Qiu)
    - Configure MPS on ARM (Murali Karicheri)
    - Remove unnecessary includes of <linux/init.h> (Paul Gortmaker)
    - Move Open Firmware devspec attribute to PCI common code (Sebastian Ott)
    - Use pdev->dev.groups for attribute creation on s390 (Sebastian Ott)
    - Remove pcibios_add_platform_entries() (Sebastian Ott)
    - Add new ID for Intel GPU "spurious interrupt" quirk (Thomas Jarosch)
    - Rename pci_is_bridge() to pci_has_subordinate() (Yijing Wang)
    - Add and use new pci_is_bridge() interface (Yijing Wang)
    - Make pci_bus_add_device() void (Yijing Wang)

  DMA API
    - Clarify physical/bus address distinction in docs (Bjorn Helgaas)
    - Fix typos in docs (Emilio López)
    - Update dma_pool_create ()and dma_pool_alloc() descriptions (Gioh Kim)
    - Change dma_declare_coherent_memory() CPU address to phys_addr_t
      (Bjorn Helgaas)
    - Pass GAPSPCI_DMA_BASE CPU & bus address to dma_declare_coherent_memory()
      (Bjorn Helgaas)"

* tag 'pci-v3.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (92 commits)
  MAINTAINERS: Add generic PCI host controller driver
  PCI: generic: Add generic PCI host controller driver
  PCI: imx6: Add support for MSI
  PCI: designware: Make MSI ISR shared IRQ aware
  PCI: imx6: Remove optional (and unused) IRQs
  PCI: imx6: Drop old IRQ mapping
  PCI: imx6: Use new clock names
  i82875p_edac: Assign PCI resources before adding device
  ARM/PCI: Call pcie_bus_configure_settings() to set MPS
  PCI: imx6: Fix imx6_add_pcie_port() section mismatch warning
  PCI: Make pci_bus_add_device() void
  PCI: exynos: Fix add_pcie_port() section mismatch warning
  PCI: Introduce new device binding path using pci_dev.driver_override
  PCI: rcar: Add gen2 device tree support
  PCI: cpqphp: Fix possible null pointer dereference
  PCI: rcar: Add R-Car PCIe device tree bindings
  PCI: rcar: Add MSI support for PCIe
  PCI: rcar: Add Renesas R-Car PCIe driver
  PCI: Fix return value from pci_user_{read,write}_config_*()
  PCI: exynos: Remove unnecessary OOM messages
  ...

1 files changed, 31 insertions, 28 deletions

diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 9fa8aa051f54..76164e173a24 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -10,6 +10,8 @@
  *
  * Copyright 2002 Andi Kleen, SuSE Labs.
  */
+#define pr_fmt(fmt) "AGP: " fmt
+
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/init.h>
@@ -75,14 +77,13 @@ static u32 __init allocate_aperture(void)
 	addr = memblock_find_in_range(GART_MIN_ADDR, GART_MAX_ADDR,
 				      aper_size, aper_size);
 	if (!addr) {
-		printk(KERN_ERR
-			"Cannot allocate aperture memory hole (%lx,%uK)\n",
-				addr, aper_size>>10);
+		pr_err("Cannot allocate aperture memory hole [mem %#010lx-%#010lx] (%uKB)\n",
+		       addr, addr + aper_size - 1, aper_size >> 10);
 		return 0;
 	}
 	memblock_reserve(addr, aper_size);
-	printk(KERN_INFO "Mapping aperture over %d KB of RAM @ %lx\n",
-			aper_size >> 10, addr);
+	pr_info("Mapping aperture over RAM [mem %#010lx-%#010lx] (%uKB)\n",
+		addr, addr + aper_size - 1, aper_size >> 10);
 	register_nosave_region(addr >> PAGE_SHIFT,
 			       (addr+aper_size) >> PAGE_SHIFT);
 
@@ -126,10 +127,11 @@ static u32 __init read_agp(int bus, int slot, int func, int cap, u32 *order)
 	u64 aper;
 	u32 old_order;
 
-	printk(KERN_INFO "AGP bridge at %02x:%02x:%02x\n", bus, slot, func);
+	pr_info("pci 0000:%02x:%02x:%02x: AGP bridge\n", bus, slot, func);
 	apsizereg = read_pci_config_16(bus, slot, func, cap + 0x14);
 	if (apsizereg == 0xffffffff) {
-		printk(KERN_ERR "APSIZE in AGP bridge unreadable\n");
+		pr_err("pci 0000:%02x:%02x.%d: APSIZE unreadable\n",
+		       bus, slot, func);
 		return 0;
 	}
 
@@ -153,16 +155,18 @@ static u32 __init read_agp(int bus, int slot, int func, int cap, u32 *order)
 	 * On some sick chips, APSIZE is 0. It means it wants 4G
 	 * so let double check that order, and lets trust AMD NB settings:
 	 */
-	printk(KERN_INFO "Aperture from AGP @ %Lx old size %u MB\n",
-			aper, 32 << old_order);
+	pr_info("pci 0000:%02x:%02x.%d: AGP aperture [bus addr %#010Lx-%#010Lx] (old size %uMB)\n",
+		bus, slot, func, aper, aper + (32ULL << (old_order + 20)) - 1,
+		32 << old_order);
 	if (aper + (32ULL<<(20 + *order)) > 0x100000000ULL) {
-		printk(KERN_INFO "Aperture size %u MB (APSIZE %x) is not right, using settings from NB\n",
-				32 << *order, apsizereg);
+		pr_info("pci 0000:%02x:%02x.%d: AGP aperture size %uMB (APSIZE %#x) is not right, using settings from NB\n",
+			bus, slot, func, 32 << *order, apsizereg);
 		*order = old_order;
 	}
 
-	printk(KERN_INFO "Aperture from AGP @ %Lx size %u MB (APSIZE %x)\n",
-			aper, 32 << *order, apsizereg);
+	pr_info("pci 0000:%02x:%02x.%d: AGP aperture [bus addr %#010Lx-%#010Lx] (%uMB, APSIZE %#x)\n",
+		bus, slot, func, aper, aper + (32ULL << (*order + 20)) - 1,
+		32 << *order, apsizereg);
 
 	if (!aperture_valid(aper, (32*1024*1024) << *order, 32<<20))
 		return 0;
@@ -218,7 +222,7 @@ static u32 __init search_agp_bridge(u32 *order, int *valid_agp)
 			}
 		}
 	}
-	printk(KERN_INFO "No AGP bridge found\n");
+	pr_info("No AGP bridge found\n");
 
 	return 0;
 }
@@ -310,7 +314,8 @@ void __init early_gart_iommu_check(void)
 		if (e820_any_mapped(aper_base, aper_base + aper_size,
 				    E820_RAM)) {
 			/* reserve it, so we can reuse it in second kernel */
-			printk(KERN_INFO "update e820 for GART\n");
+			pr_info("e820: reserve [mem %#010Lx-%#010Lx] for GART\n",
+				aper_base, aper_base + aper_size - 1);
 			e820_add_region(aper_base, aper_size, E820_RESERVED);
 			update_e820();
 		}
@@ -354,7 +359,7 @@ int __init gart_iommu_hole_init(void)
 	    !early_pci_allowed())
 		return -ENODEV;
 
-	printk(KERN_INFO  "Checking aperture...\n");
+	pr_info("Checking aperture...\n");
 
 	if (!fallback_aper_force)
 		agp_aper_base = search_agp_bridge(&agp_aper_order, &valid_agp);
@@ -395,8 +400,9 @@ int __init gart_iommu_hole_init(void)
 			aper_base = read_pci_config(bus, slot, 3, AMD64_GARTAPERTUREBASE) & 0x7fff;
 			aper_base <<= 25;
 
-			printk(KERN_INFO "Node %d: aperture @ %Lx size %u MB\n",
-					node, aper_base, aper_size >> 20);
+			pr_info("Node %d: aperture [bus addr %#010Lx-%#010Lx] (%uMB)\n",
+				node, aper_base, aper_base + aper_size - 1,
+				aper_size >> 20);
 			node++;
 
 			if (!aperture_valid(aper_base, aper_size, 64<<20)) {
@@ -407,9 +413,9 @@ int __init gart_iommu_hole_init(void)
 					if (!no_iommu &&
 					    max_pfn > MAX_DMA32_PFN &&
 					    !printed_gart_size_msg) {
-						printk(KERN_ERR "you are using iommu with agp, but GART size is less than 64M\n");
-						printk(KERN_ERR "please increase GART size in your BIOS setup\n");
-						printk(KERN_ERR "if BIOS doesn't have that option, contact your HW vendor!\n");
+						pr_err("you are using iommu with agp, but GART size is less than 64MB\n");
+						pr_err("please increase GART size in your BIOS setup\n");
+						pr_err("if BIOS doesn't have that option, contact your HW vendor!\n");
 						printed_gart_size_msg = 1;
 					}
 				} else {
@@ -446,13 +452,10 @@ out:
 		   force_iommu ||
 		   valid_agp ||
 		   fallback_aper_force) {
-		printk(KERN_INFO
-			"Your BIOS doesn't leave a aperture memory hole\n");
-		printk(KERN_INFO
-			"Please enable the IOMMU option in the BIOS setup\n");
-		printk(KERN_INFO
-			"This costs you %d MB of RAM\n",
-				32 << fallback_aper_order);
+		pr_info("Your BIOS doesn't leave a aperture memory hole\n");
+		pr_info("Please enable the IOMMU option in the BIOS setup\n");
+		pr_info("This costs you %dMB of RAM\n",
+			32 << fallback_aper_order);
 
 		aper_order = fallback_aper_order;
 		aper_alloc = allocate_aperture();