Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6

* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (41 commits)
  PCI: fix pci_ioremap_bar() on s390
  PCI: fix AER capability check
  PCI: use pci_find_ext_capability everywhere
  PCI: remove #ifdef DEBUG around dev_dbg call
  PCI hotplug: fix get_##name return value problem
  PCI: document the pcie_aspm kernel parameter
  PCI: introduce an pci_ioremap(pdev, barnr) function
  powerpc/PCI: Add legacy PCI access via sysfs
  PCI: Add ability to mmap legacy_io on some platforms
  PCI: probing debug message uniformization
  PCI: support PCIe ARI capability
  PCI: centralize the capabilities code in probe.c
  PCI: centralize the capabilities code in pci-sysfs.c
  PCI: fix 64-vbit prefetchable memory resource BARs
  PCI: replace cfg space size (256/4096) by macros.
  PCI: use resource_size() everywhere.
  PCI: use same arg names in PCI_VDEVICE comment
  PCI hotplug: rpaphp: make debug var unique
  PCI: use %pF instead of print_fn_descriptor_symbol() in quirks.c
  PCI: fix hotplug get_##name return value problem
  ...

Documentation/MSI-HOWTO.txt

@@ -236,10 +236,8 @@ software system can set different pages for controlling accesses to the
 MSI-X structure. The implementation of MSI support requires the PCI
 subsystem, not a device driver, to maintain full control of the MSI-X
 table/MSI-X PBA (Pending Bit Array) and MMIO address space of the MSI-X
-table/MSI-X PBA.  A device driver is prohibited from requesting the MMIO
-address space of the MSI-X table/MSI-X PBA. Otherwise, the PCI subsystem
-will fail enabling MSI-X on its hardware device when it calls the function
-pci_enable_msix().
+table/MSI-X PBA.  A device driver should not access the MMIO address
+space of the MSI-X table/MSI-X PBA.
 
 5.3.2 API pci_enable_msix
 

Documentation/PCI/pci.txt

@@ -163,6 +163,10 @@ need pass only as many optional fields as necessary:
 	o class and classmask fields default to 0
 	o driver_data defaults to 0UL.
 
+Note that driver_data must match the value used by any of the pci_device_id
+entries defined in the driver. This makes the driver_data field mandatory
+if all the pci_device_id entries have a non-zero driver_data value.
+
 Once added, the driver probe routine will be invoked for any unclaimed
 PCI devices listed in its (newly updated) pci_ids list.
 

Documentation/PCI/pcieaer-howto.txt

@@ -203,22 +203,17 @@ to mmio_enabled.
 
 3.3 helper functions
 
-3.3.1 int pci_find_aer_capability(struct pci_dev *dev);
-pci_find_aer_capability locates the PCI Express AER capability
-in the device configuration space. If the device doesn't support
-PCI-Express AER, the function returns 0.
-
-3.3.2 int pci_enable_pcie_error_reporting(struct pci_dev *dev);
+3.3.1 int pci_enable_pcie_error_reporting(struct pci_dev *dev);
 pci_enable_pcie_error_reporting enables the device to send error
 messages to root port when an error is detected. Note that devices
 don't enable the error reporting by default, so device drivers need
 call this function to enable it.
 
-3.3.3 int pci_disable_pcie_error_reporting(struct pci_dev *dev);
+3.3.2 int pci_disable_pcie_error_reporting(struct pci_dev *dev);
 pci_disable_pcie_error_reporting disables the device to send error
 messages to root port when an error is detected.
 
-3.3.4 int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
+3.3.3 int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
 pci_cleanup_aer_uncorrect_error_status cleanups the uncorrectable
 error status register.
 

Documentation/kernel-parameters.txt

@@ -101,6 +101,7 @@ parameter is applicable:
 	X86-64	X86-64 architecture is enabled.
 			More X86-64 boot options can be found in
 			Documentation/x86_64/boot-options.txt .
+	X86	Either 32bit or 64bit x86 (same as X86-32+X86-64)
 
 In addition, the following text indicates that the option:
 
@@ -1588,7 +1589,7 @@ and is between 256 and 4096 characters. It is defined in the file
 			See also Documentation/paride.txt.
 
 	pci=option[,option...]	[PCI] various PCI subsystem options:
-		off		[X86-32] don't probe for the PCI bus
+		off		[X86] don't probe for the PCI bus
 		bios		[X86-32] force use of PCI BIOS, don't access
 				the hardware directly. Use this if your machine
 				has a non-standard PCI host bridge.
@@ -1596,9 +1597,9 @@ and is between 256 and 4096 characters. It is defined in the file
 				hardware access methods are allowed. Use this
 				if you experience crashes upon bootup and you
 				suspect they are caused by the BIOS.
-		conf1		[X86-32] Force use of PCI Configuration
+		conf1		[X86] Force use of PCI Configuration
 				Mechanism 1.
-		conf2		[X86-32] Force use of PCI Configuration
+		conf2		[X86] Force use of PCI Configuration
 				Mechanism 2.
 		noaer		[PCIE] If the PCIEAER kernel config parameter is
 				enabled, this kernel boot option can be used to
@@ -1618,37 +1619,37 @@ and is between 256 and 4096 characters. It is defined in the file
 				this option if the kernel is unable to allocate
 				IRQs or discover secondary PCI buses on your
 				motherboard.
-		rom		[X86-32] Assign address space to expansion ROMs.
+		rom		[X86] Assign address space to expansion ROMs.
 				Use with caution as certain devices share
 				address decoders between ROMs and other
 				resources.
-		norom		[X86-32,X86_64] Do not assign address space to
+		norom		[X86] Do not assign address space to
 				expansion ROMs that do not already have
 				BIOS assigned address ranges.
-		irqmask=0xMMMM	[X86-32] Set a bit mask of IRQs allowed to be
+		irqmask=0xMMMM	[X86] Set a bit mask of IRQs allowed to be
 				assigned automatically to PCI devices. You can
 				make the kernel exclude IRQs of your ISA cards
 				this way.
-		pirqaddr=0xAAAAA	[X86-32] Specify the physical address
+		pirqaddr=0xAAAAA	[X86] Specify the physical address
 				of the PIRQ table (normally generated
 				by the BIOS) if it is outside the
 				F0000h-100000h range.
-		lastbus=N	[X86-32] Scan all buses thru bus #N. Can be
+		lastbus=N	[X86] Scan all buses thru bus #N. Can be
 				useful if the kernel is unable to find your
 				secondary buses and you want to tell it
 				explicitly which ones they are.
-		assign-busses	[X86-32] Always assign all PCI bus
+		assign-busses	[X86] Always assign all PCI bus
 				numbers ourselves, overriding
 				whatever the firmware may have done.
-		usepirqmask	[X86-32] Honor the possible IRQ mask stored
+		usepirqmask	[X86] Honor the possible IRQ mask stored
 				in the BIOS $PIR table. This is needed on
 				some systems with broken BIOSes, notably
 				some HP Pavilion N5400 and Omnibook XE3
 				notebooks. This will have no effect if ACPI
 				IRQ routing is enabled.
-		noacpi		[X86-32] Do not use ACPI for IRQ routing
+		noacpi		[X86] Do not use ACPI for IRQ routing
 				or for PCI scanning.
-		use_crs		[X86-32] Use _CRS for PCI resource
+		use_crs		[X86] Use _CRS for PCI resource
 				allocation.
 		routeirq	Do IRQ routing for all PCI devices.
 				This is normally done in pci_enable_device(),
@@ -1677,6 +1678,12 @@ and is between 256 and 4096 characters. It is defined in the file
 				reserved for the CardBus bridge's memory
 				window. The default value is 64 megabytes.
 
+	pcie_aspm=	[PCIE] Forcibly enable or disable PCIe Active State Power
+			Management.
+		off	Disable ASPM.
+		force	Enable ASPM even on devices that claim not to support it.
+			WARNING: Forcing ASPM on may cause system lockups.
+
 	pcmv=		[HW,PCMCIA] BadgePAD 4
 
 	pd.		[PARIDE]

arch/ia64/include/asm/pci.h

@@ -95,16 +95,8 @@ extern int pci_mmap_page_range (struct pci_dev *dev, struct vm_area_struct *vma,
 				enum pci_mmap_state mmap_state, int write_combine);
 #define HAVE_PCI_LEGACY
 extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
-				      struct vm_area_struct *vma);
-extern ssize_t pci_read_legacy_io(struct kobject *kobj,
-				  struct bin_attribute *bin_attr,
-				  char *buf, loff_t off, size_t count);
-extern ssize_t pci_write_legacy_io(struct kobject *kobj,
-				   struct bin_attribute *bin_attr,
-				   char *buf, loff_t off, size_t count);
-extern int pci_mmap_legacy_mem(struct kobject *kobj,
-			       struct bin_attribute *attr,
-			       struct vm_area_struct *vma);
+				      struct vm_area_struct *vma,
+				      enum pci_mmap_state mmap_state);
 
 #define pci_get_legacy_mem platform_pci_get_legacy_mem
 #define pci_legacy_read platform_pci_legacy_read

arch/ia64/pci/pci.c

@@ -614,12 +614,17 @@ char *ia64_pci_get_legacy_mem(struct pci_bus *bus)
  * vector to get the base address.
  */
 int
-pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma)
+pci_mmap_legacy_page_range(struct pci_bus *bus, struct vm_area_struct *vma,
+			   enum pci_mmap_state mmap_state)
 {
 	unsigned long size = vma->vm_end - vma->vm_start;
 	pgprot_t prot;
 	char *addr;
 
+	/* We only support mmap'ing of legacy memory space */
+	if (mmap_state != pci_mmap_mem)
+		return -ENOSYS;
+
 	/*
 	 * Avoid attribute aliasing.  See Documentation/ia64/aliasing.txt
 	 * for more details.

arch/powerpc/include/asm/pci-bridge.h

@@ -74,6 +74,13 @@ struct pci_controller {
 	unsigned long pci_io_size;
 #endif
 
+	/* Some machines have a special region to forward the ISA
+	 * "memory" cycles such as VGA memory regions. Left to 0
+	 * if unsupported
+	 */
+	resource_size_t	isa_mem_phys;
+	resource_size_t	isa_mem_size;
+
 	struct pci_ops *ops;
 	unsigned int __iomem *cfg_addr;
 	void __iomem *cfg_data;

arch/powerpc/include/asm/pci.h

@@ -123,6 +123,16 @@ int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
 #define HAVE_PCI_MMAP	1
 
+extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
+			   size_t count);
+extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
+			   size_t count);
+extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
+				      struct vm_area_struct *vma,
+				      enum pci_mmap_state mmap_state);
+
+#define HAVE_PCI_LEGACY	1
+
 #if defined(CONFIG_PPC64) || defined(CONFIG_NOT_COHERENT_CACHE)
 /*
  * For 64-bit kernels, pci_unmap_{single,page} is not a nop.
@@ -226,5 +236,6 @@ extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
 extern void pcibios_do_bus_setup(struct pci_bus *bus);
 extern void pcibios_fixup_of_probed_bus(struct pci_bus *bus);
 
+
 #endif	/* __KERNEL__ */
 #endif /* __ASM_POWERPC_PCI_H */

arch/powerpc/kernel/pci-common.c

@@ -451,7 +451,8 @@ pgprot_t pci_phys_mem_access_prot(struct file *file,
 		pci_dev_put(pdev);
 	}
 
-	DBG("non-PCI map for %lx, prot: %lx\n", offset, prot);
+	DBG("non-PCI map for %llx, prot: %lx\n",
+	    (unsigned long long)offset, prot);
 
 	return __pgprot(prot);
 }
@@ -490,6 +491,131 @@ int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
 	return ret;
 }
 
+/* This provides legacy IO read access on a bus */
+int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, size_t size)
+{
+	unsigned long offset;
+	struct pci_controller *hose = pci_bus_to_host(bus);
+	struct resource *rp = &hose->io_resource;
+	void __iomem *addr;
+
+	/* Check if port can be supported by that bus. We only check
+	 * the ranges of the PHB though, not the bus itself as the rules
+	 * for forwarding legacy cycles down bridges are not our problem
+	 * here. So if the host bridge supports it, we do it.
+	 */
+	offset = (unsigned long)hose->io_base_virt - _IO_BASE;
+	offset += port;
+
+	if (!(rp->flags & IORESOURCE_IO))
+		return -ENXIO;
+	if (offset < rp->start || (offset + size) > rp->end)
+		return -ENXIO;
+	addr = hose->io_base_virt + port;
+
+	switch(size) {
+	case 1:
+		*((u8 *)val) = in_8(addr);
+		return 1;
+	case 2:
+		if (port & 1)
+			return -EINVAL;
+		*((u16 *)val) = in_le16(addr);
+		return 2;
+	case 4:
+		if (port & 3)
+			return -EINVAL;
+		*((u32 *)val) = in_le32(addr);
+		return 4;
+	}
+	return -EINVAL;
+}
+
+/* This provides legacy IO write access on a bus */
+int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, size_t size)
+{
+	unsigned long offset;
+	struct pci_controller *hose = pci_bus_to_host(bus);
+	struct resource *rp = &hose->io_resource;
+	void __iomem *addr;
+
+	/* Check if port can be supported by that bus. We only check
+	 * the ranges of the PHB though, not the bus itself as the rules
+	 * for forwarding legacy cycles down bridges are not our problem
+	 * here. So if the host bridge supports it, we do it.
+	 */
+	offset = (unsigned long)hose->io_base_virt - _IO_BASE;
+	offset += port;
+
+	if (!(rp->flags & IORESOURCE_IO))
+		return -ENXIO;
+	if (offset < rp->start || (offset + size) > rp->end)
+		return -ENXIO;
+	addr = hose->io_base_virt + port;
+
+	/* WARNING: The generic code is idiotic. It gets passed a pointer
+	 * to what can be a 1, 2 or 4 byte quantity and always reads that
+	 * as a u32, which means that we have to correct the location of
+	 * the data read within those 32 bits for size 1 and 2
+	 */
+	switch(size) {
+	case 1:
+		out_8(addr, val >> 24);
+		return 1;
+	case 2:
+		if (port & 1)
+			return -EINVAL;
+		out_le16(addr, val >> 16);
+		return 2;
+	case 4:
+		if (port & 3)
+			return -EINVAL;
+		out_le32(addr, val);
+		return 4;
+	}
+	return -EINVAL;
+}
+
+/* This provides legacy IO or memory mmap access on a bus */
+int pci_mmap_legacy_page_range(struct pci_bus *bus,
+			       struct vm_area_struct *vma,
+			       enum pci_mmap_state mmap_state)
+{
+	struct pci_controller *hose = pci_bus_to_host(bus);
+	resource_size_t offset =
+		((resource_size_t)vma->vm_pgoff) << PAGE_SHIFT;
+	resource_size_t size = vma->vm_end - vma->vm_start;
+	struct resource *rp;
+
+	pr_debug("pci_mmap_legacy_page_range(%04x:%02x, %s @%llx..%llx)\n",
+		 pci_domain_nr(bus), bus->number,
+		 mmap_state == pci_mmap_mem ? "MEM" : "IO",
+		 (unsigned long long)offset,
+		 (unsigned long long)(offset + size - 1));
+
+	if (mmap_state == pci_mmap_mem) {
+		if ((offset + size) > hose->isa_mem_size)
+			return -ENXIO;
+		offset += hose->isa_mem_phys;
+	} else {
+		unsigned long io_offset = (unsigned long)hose->io_base_virt - _IO_BASE;
+		unsigned long roffset = offset + io_offset;
+		rp = &hose->io_resource;
+		if (!(rp->flags & IORESOURCE_IO))
+			return -ENXIO;
+		if (roffset < rp->start || (roffset + size) > rp->end)
+			return -ENXIO;
+		offset += hose->io_base_phys;
+	}
+	pr_debug(" -> mapping phys %llx\n", (unsigned long long)offset);
+
+	vma->vm_pgoff = offset >> PAGE_SHIFT;
+	vma->vm_page_prot |= _PAGE_NO_CACHE | _PAGE_GUARDED;
+	return remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+			       vma->vm_end - vma->vm_start,
+			       vma->vm_page_prot);
+}
+
 void pci_resource_to_user(const struct pci_dev *dev, int bar,
 			  const struct resource *rsrc,
 			  resource_size_t *start, resource_size_t *end)
@@ -592,6 +718,12 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
 		cpu_addr = of_translate_address(dev, ranges + 3);
 		size = of_read_number(ranges + pna + 3, 2);
 		ranges += np;
+
+		/* If we failed translation or got a zero-sized region
+		 * (some FW try to feed us with non sensical zero sized regions
+		 * such as power3 which look like some kind of attempt at exposing
+		 * the VGA memory hole)
+		 */
 		if (cpu_addr == OF_BAD_ADDR || size == 0)
 			continue;
 
@@ -665,6 +797,8 @@ void __devinit pci_process_bridge_OF_ranges(struct pci_controller *hose,
 				isa_hole = memno;
 				if (primary || isa_mem_base == 0)
 					isa_mem_base = cpu_addr;
+				hose->isa_mem_phys = cpu_addr;
+				hose->isa_mem_size = size;
 			}
 
 			/* We get the PCI/Mem offset from the first range or

arch/x86/pci/irq.c

@@ -493,7 +493,7 @@ static int pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq
 	if (pirq <= 4)
 		irq = read_config_nybble(router, 0x56, pirq - 1);
 	dev_info(&dev->dev,
-		 "AMD756: dev [%04x/%04x], router PIRQ %d get IRQ %d\n",
+		 "AMD756: dev [%04x:%04x], router PIRQ %d get IRQ %d\n",
 		 dev->vendor, dev->device, pirq, irq);
 	return irq;
 }
@@ -501,7 +501,7 @@ static int pirq_amd756_get(struct pci_dev *router, struct pci_dev *dev, int pirq
 static int pirq_amd756_set(struct pci_dev *router, struct pci_dev *dev, int pirq, int irq)
 {
 	dev_info(&dev->dev,
-		 "AMD756: dev [%04x/%04x], router PIRQ %d set IRQ %d\n",
+		 "AMD756: dev [%04x:%04x], router PIRQ %d set IRQ %d\n",
 		 dev->vendor, dev->device, pirq, irq);
 	if (pirq <= 4)
 		write_config_nybble(router, 0x56, pirq - 1, irq);
@@ -590,13 +590,20 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
 	case PCI_DEVICE_ID_INTEL_ICH10_1:
 	case PCI_DEVICE_ID_INTEL_ICH10_2:
 	case PCI_DEVICE_ID_INTEL_ICH10_3:
-	case PCI_DEVICE_ID_INTEL_PCH_0:
-	case PCI_DEVICE_ID_INTEL_PCH_1:
 		r->name = "PIIX/ICH";
 		r->get = pirq_piix_get;
 		r->set = pirq_piix_set;
 		return 1;
 	}
+
+	if ((device >= PCI_DEVICE_ID_INTEL_PCH_LPC_MIN) && 
+		(device <= PCI_DEVICE_ID_INTEL_PCH_LPC_MAX)) {
+		r->name = "PIIX/ICH";
+		r->get = pirq_piix_get;
+		r->set = pirq_piix_set;
+		return 1;
+	}
+
 	return 0;
 }
 
@@ -823,7 +830,7 @@ static void __init pirq_find_router(struct irq_router *r)
 	r->get = NULL;
 	r->set = NULL;
 
-	DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for %04x:%04x\n",
+	DBG(KERN_DEBUG "PCI: Attempting to find IRQ router for [%04x:%04x]\n",
 	    rt->rtr_vendor, rt->rtr_device);
 
 	pirq_router_dev = pci_get_bus_and_slot(rt->rtr_bus, rt->rtr_devfn);
@@ -843,7 +850,7 @@ static void __init pirq_find_router(struct irq_router *r)
 			h->probe(r, pirq_router_dev, pirq_router_dev->device))
 			break;
 	}
-	dev_info(&pirq_router_dev->dev, "%s IRQ router [%04x/%04x]\n",
+	dev_info(&pirq_router_dev->dev, "%s IRQ router [%04x:%04x]\n",
 		 pirq_router.name,
 		 pirq_router_dev->vendor, pirq_router_dev->device);
 

drivers/i2c/busses/i2c-amd756.c

@@ -332,10 +332,6 @@ static int __devinit amd756_probe(struct pci_dev *pdev,
 	int error;
 	u8 temp;
 	
-	/* driver_data might come from user-space, so check it */
-	if (id->driver_data >= ARRAY_SIZE(chipname))
-		return -EINVAL;
-
 	if (amd756_ioport) {
 		dev_err(&pdev->dev, "Only one device supported "
 		       "(you have a strange motherboard, btw)\n");
@@ -412,7 +408,6 @@ static struct pci_driver amd756_driver = {
 	.id_table	= amd756_ids,
 	.probe		= amd756_probe,
 	.remove		= __devexit_p(amd756_remove),
-	.dynids.use_driver_data = 1,
 };
 
 static int __init amd756_init(void)

drivers/i2c/busses/i2c-viapro.c

@@ -332,10 +332,6 @@ static int __devinit vt596_probe(struct pci_dev *pdev,
 	unsigned char temp;
 	int error = -ENODEV;
 
-	/* driver_data might come from user-space, so check it */
-	if (id->driver_data & 1 || id->driver_data > 0xff)
-		return -EINVAL;
-
 	/* Determine the address of the SMBus areas */
 	if (force_addr) {
 		vt596_smba = force_addr & 0xfff0;
@@ -483,7 +479,6 @@ static struct pci_driver vt596_driver = {
 	.name		= "vt596_smbus",
 	.id_table	= vt596_ids,
 	.probe		= vt596_probe,
-	.dynids.use_driver_data = 1,
 };
 
 static int __init i2c_vt596_init(void)

drivers/pci/bus.c

@@ -151,6 +151,13 @@ void pci_bus_add_devices(struct pci_bus *bus)
 			if (retval)
 				dev_err(&dev->dev, "Error creating cpuaffinity"
 					" file, continuing...\n");
+
+			retval = device_create_file(&child_bus->dev,
+						&dev_attr_cpulistaffinity);
+			if (retval)
+				dev_err(&dev->dev,
+					"Error creating cpulistaffinity"
+					" file, continuing...\n");
 		}
 	}
 }

drivers/pci/hotplug/pci_hotplug_core.c

@@ -102,13 +102,13 @@ static int get_##name (struct hotplug_slot *slot, type *value)		\
 {									\
 	struct hotplug_slot_ops *ops = slot->ops;			\
 	int retval = 0;							\
-	if (try_module_get(ops->owner)) {				\
-		if (ops->get_##name)					\
-			retval = ops->get_##name(slot, value);		\
-		else							\
-			*value = slot->info->name;			\
-		module_put(ops->owner);					\
-	}								\
+	if (!try_module_get(ops->owner))				\
+		return -ENODEV;						\
+	if (ops->get_##name)						\
+		retval = ops->get_##name(slot, value);			\
+	else								\
+		*value = slot->info->name;				\
+	module_put(ops->owner);						\
 	return retval;							\
 }
 

drivers/pci/hotplug/pciehp.h

@@ -57,6 +57,19 @@ extern struct workqueue_struct *pciehp_wq;
 #define warn(format, arg...)						\
 	printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
 
+#define ctrl_dbg(ctrl, format, arg...)					\
+	do {								\
+		if (pciehp_debug)					\
+			dev_printk(, &ctrl->pcie->device,		\
+					format, ## arg);		\
+	} while (0)
+#define ctrl_err(ctrl, format, arg...)					\
+	dev_err(&ctrl->pcie->device, format, ## arg)
+#define ctrl_info(ctrl, format, arg...)					\
+	dev_info(&ctrl->pcie->device, format, ## arg)
+#define ctrl_warn(ctrl, format, arg...)					\
+	dev_warn(&ctrl->pcie->device, format, ## arg)
+
 #define SLOT_NAME_SIZE 10
 struct slot {
 	u8 bus;
@@ -87,6 +100,7 @@ struct controller {
 	int num_slots;			/* Number of slots on ctlr */
 	int slot_num_inc;		/* 1 or -1 */
 	struct pci_dev *pci_dev;
+	struct pcie_device *pcie;	/* PCI Express port service */
 	struct list_head slot_list;
 	struct hpc_ops *hpc_ops;
 	wait_queue_head_t queue;	/* sleep & wake process */
@@ -170,7 +184,7 @@ static inline struct slot *pciehp_find_slot(struct controller *ctrl, u8 device)
 			return slot;
 	}
 
-	err("%s: slot (device=0x%x) not found\n", __func__, device);
+	ctrl_err(ctrl, "%s: slot (device=0x%x) not found\n", __func__, device);
 	return NULL;
 }
 

drivers/pci/hotplug/pciehp_core.c

@@ -144,9 +144,10 @@ static int set_lock_status(struct hotplug_slot *hotplug_slot, u8 status)
  * sysfs interface which allows the user to toggle the Electro Mechanical
  * Interlock.  Valid values are either 0 or 1.  0 == unlock, 1 == lock
  */
-static ssize_t lock_write_file(struct hotplug_slot *slot, const char *buf,
-		size_t count)
+static ssize_t lock_write_file(struct hotplug_slot *hotplug_slot,
+		const char *buf, size_t count)
 {
+	struct slot *slot = hotplug_slot->private;
 	unsigned long llock;
 	u8 lock;
 	int retval = 0;
@@ -157,10 +158,11 @@ static ssize_t lock_write_file(struct hotplug_slot *slot, const char *buf,
 	switch (lock) {
 		case 0:
 		case 1:
-			retval = set_lock_status(slot, lock);
+			retval = set_lock_status(hotplug_slot, lock);
 			break;
 		default:
-			err ("%d is an invalid lock value\n", lock);
+			ctrl_err(slot->ctrl, "%d is an invalid lock value\n",
+				 lock);
 			retval = -EINVAL;
 	}
 	if (retval)
@@ -180,7 +182,10 @@ static struct hotplug_slot_attribute hotplug_slot_attr_lock = {
  */
 static void release_slot(struct hotplug_slot *hotplug_slot)
 {
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	struct slot *slot = hotplug_slot->private;
+
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		 __func__, hotplug_slot->name);
 
 	kfree(hotplug_slot->info);
 	kfree(hotplug_slot);
@@ -215,9 +220,9 @@ static int init_slots(struct controller *ctrl)
 		get_adapter_status(hotplug_slot, &info->adapter_status);
 		slot->hotplug_slot = hotplug_slot;
 
-		dbg("Registering bus=%x dev=%x hp_slot=%x sun=%x "
-		    "slot_device_offset=%x\n", slot->bus, slot->device,
-		    slot->hp_slot, slot->number, ctrl->slot_device_offset);
+		ctrl_dbg(ctrl, "Registering bus=%x dev=%x hp_slot=%x sun=%x "
+			 "slot_device_offset=%x\n", slot->bus, slot->device,
+			 slot->hp_slot, slot->number, ctrl->slot_device_offset);
 duplicate_name:
 		retval = pci_hp_register(hotplug_slot,
 					 ctrl->pci_dev->subordinate,
@@ -233,9 +238,11 @@ static int init_slots(struct controller *ctrl)
 				if (len < SLOT_NAME_SIZE)
 					goto duplicate_name;
 				else
-					err("duplicate slot name overflow\n");
+					ctrl_err(ctrl, "duplicate slot name "
+						 "overflow\n");
 			}
-			err("pci_hp_register failed with error %d\n", retval);
+			ctrl_err(ctrl, "pci_hp_register failed with error %d\n",
+				 retval);
 			goto error_info;
 		}
 		/* create additional sysfs entries */
@@ -244,7 +251,8 @@ static int init_slots(struct controller *ctrl)
 				&hotplug_slot_attr_lock.attr);
 			if (retval) {
 				pci_hp_deregister(hotplug_slot);
-				err("cannot create additional sysfs entries\n");
+				ctrl_err(ctrl, "cannot create additional sysfs "
+					 "entries\n");
 				goto error_info;
 			}
 		}
@@ -278,7 +286,8 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		  __func__, hotplug_slot->name);
 
 	hotplug_slot->info->attention_status = status;
 
@@ -293,7 +302,8 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		 __func__, hotplug_slot->name);
 
 	return pciehp_sysfs_enable_slot(slot);
 }
@@ -303,7 +313,8 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		  __func__, hotplug_slot->name);
 
 	return pciehp_sysfs_disable_slot(slot);
 }
@@ -313,7 +324,8 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	struct slot *slot = hotplug_slot->private;
 	int retval;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		  __func__, hotplug_slot->name);
 
 	retval = slot->hpc_ops->get_power_status(slot, value);
 	if (retval < 0)
@@ -327,7 +339,8 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	struct slot *slot = hotplug_slot->private;
 	int retval;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		  __func__, hotplug_slot->name);
 
 	retval = slot->hpc_ops->get_attention_status(slot, value);
 	if (retval < 0)
@@ -341,7 +354,8 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	struct slot *slot = hotplug_slot->private;
 	int retval;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		 __func__, hotplug_slot->name);
 
 	retval = slot->hpc_ops->get_latch_status(slot, value);
 	if (retval < 0)
@@ -355,7 +369,8 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 	struct slot *slot = hotplug_slot->private;
 	int retval;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		 __func__, hotplug_slot->name);
 
 	retval = slot->hpc_ops->get_adapter_status(slot, value);
 	if (retval < 0)
@@ -370,7 +385,8 @@ static int get_max_bus_speed(struct hotplug_slot *hotplug_slot,
 	struct slot *slot = hotplug_slot->private;
 	int retval;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		 __func__, hotplug_slot->name);
 
 	retval = slot->hpc_ops->get_max_bus_speed(slot, value);
 	if (retval < 0)
@@ -384,7 +400,8 @@ static int get_cur_bus_speed(struct hotplug_slot *hotplug_slot, enum pci_bus_spe
 	struct slot *slot = hotplug_slot->private;
 	int retval;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot->name);
+	ctrl_dbg(slot->ctrl, "%s - physical_slot = %s\n",
+		 __func__, hotplug_slot->name);
 
 	retval = slot->hpc_ops->get_cur_bus_speed(slot, value);
 	if (retval < 0)
@@ -402,14 +419,15 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	struct pci_dev *pdev = dev->port;
 
 	if (pciehp_force)
-		dbg("Bypassing BIOS check for pciehp use on %s\n",
-		    pci_name(pdev));
+		dev_info(&dev->device,
+			 "Bypassing BIOS check for pciehp use on %s\n",
+			 pci_name(pdev));
 	else if (pciehp_get_hp_hw_control_from_firmware(pdev))
 		goto err_out_none;
 
 	ctrl = pcie_init(dev);
 	if (!ctrl) {
-		dbg("%s: controller initialization failed\n", PCIE_MODULE_NAME);
+		dev_err(&dev->device, "controller initialization failed\n");
 		goto err_out_none;
 	}
 	set_service_data(dev, ctrl);
@@ -418,11 +436,10 @@ static int pciehp_probe(struct pcie_device *dev, const struct pcie_port_service_
 	rc = init_slots(ctrl);
 	if (rc) {
 		if (rc == -EBUSY)
-			warn("%s: slot already registered by another "
-				"hotplug driver\n", PCIE_MODULE_NAME);
+			ctrl_warn(ctrl, "slot already registered by another "
+				  "hotplug driver\n");
 		else
-			err("%s: slot initialization failed\n",
-				PCIE_MODULE_NAME);
+			ctrl_err(ctrl, "slot initialization failed\n");
 		goto err_out_release_ctlr;
 	}
 
@@ -461,13 +478,13 @@ static void pciehp_remove (struct pcie_device *dev)
 #ifdef CONFIG_PM
 static int pciehp_suspend (struct pcie_device *dev, pm_message_t state)
 {
-	printk("%s ENTRY\n", __func__);
+	dev_info(&dev->device, "%s ENTRY\n", __func__);
 	return 0;
 }
 
 static int pciehp_resume (struct pcie_device *dev)
 {
-	printk("%s ENTRY\n", __func__);
+	dev_info(&dev->device, "%s ENTRY\n", __func__);
 	if (pciehp_force) {
 		struct controller *ctrl = get_service_data(dev);
 		struct slot *t_slot;
@@ -497,10 +514,9 @@ static struct pcie_port_service_id port_pci_ids[] = { {
 	.driver_data =	0,
 	}, { /* end: all zeroes */ }
 };
-static const char device_name[] = "hpdriver";
 
 static struct pcie_port_service_driver hpdriver_portdrv = {
-	.name		= (char *)device_name,
+	.name		= PCIE_MODULE_NAME,
 	.id_table	= &port_pci_ids[0],
 
 	.probe		= pciehp_probe,

drivers/pci/hotplug/pciehp_pci.c

@@ -198,18 +198,20 @@ int pciehp_configure_device(struct slot *p_slot)
 	struct pci_dev *dev;
 	struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
 	int num, fn;
+	struct controller *ctrl = p_slot->ctrl;
 
 	dev = pci_get_slot(parent, PCI_DEVFN(p_slot->device, 0));
 	if (dev) {
-		err("Device %s already exists at %x:%x, cannot hot-add\n",
-				pci_name(dev), p_slot->bus, p_slot->device);
+		ctrl_err(ctrl,
+			 "Device %s already exists at %x:%x, cannot hot-add\n",
+			 pci_name(dev), p_slot->bus, p_slot->device);
 		pci_dev_put(dev);
 		return -EINVAL;
 	}
 
 	num = pci_scan_slot(parent, PCI_DEVFN(p_slot->device, 0));
 	if (num == 0) {
-		err("No new device found\n");
+		ctrl_err(ctrl, "No new device found\n");
 		return -ENODEV;
 	}
 
@@ -218,8 +220,8 @@ int pciehp_configure_device(struct slot *p_slot)
 		if (!dev)
 			continue;
 		if ((dev->class >> 16) == PCI_BASE_CLASS_DISPLAY) {
-			err("Cannot hot-add display device %s\n",
-					pci_name(dev));
+			ctrl_err(ctrl, "Cannot hot-add display device %s\n",
+				 pci_name(dev));
 			pci_dev_put(dev);
 			continue;
 		}
@@ -244,9 +246,10 @@ int pciehp_unconfigure_device(struct slot *p_slot)
 	u8 presence = 0;
 	struct pci_bus *parent = p_slot->ctrl->pci_dev->subordinate;
 	u16 command;
+	struct controller *ctrl = p_slot->ctrl;
 
-	dbg("%s: bus/dev = %x/%x\n", __func__, p_slot->bus,
-				p_slot->device);
+	ctrl_dbg(ctrl, "%s: bus/dev = %x/%x\n", __func__,
+		 p_slot->bus, p_slot->device);
 	ret = p_slot->hpc_ops->get_adapter_status(p_slot, &presence);
 	if (ret)
 		presence = 0;
@@ -257,16 +260,17 @@ int pciehp_unconfigure_device(struct slot *p_slot)
 		if (!temp)
 			continue;
 		if ((temp->class >> 16) == PCI_BASE_CLASS_DISPLAY) {
-			err("Cannot remove display device %s\n",
-					pci_name(temp));
+			ctrl_err(ctrl, "Cannot remove display device %s\n",
+				 pci_name(temp));
 			pci_dev_put(temp);
 			continue;
 		}
 		if (temp->hdr_type == PCI_HEADER_TYPE_BRIDGE && presence) {
 			pci_read_config_byte(temp, PCI_BRIDGE_CONTROL, &bctl);
 			if (bctl & PCI_BRIDGE_CTL_VGA) {
-				err("Cannot remove display device %s\n",
-				    pci_name(temp));
+				ctrl_err(ctrl,
+					 "Cannot remove display device %s\n",
+					 pci_name(temp));
 				pci_dev_put(temp);
 				continue;
 			}

drivers/pci/hotplug/rpaphp.h

@@ -46,10 +46,10 @@
 #define PRESENT         1	/* Card in slot */
 
 #define MY_NAME "rpaphp"
-extern int debug;
+extern int rpaphp_debug;
 #define dbg(format, arg...)					\
 	do {							\
-		if (debug)					\
+		if (rpaphp_debug)					\
 			printk(KERN_DEBUG "%s: " format,	\
 				MY_NAME , ## arg); 		\
 	} while (0)

drivers/pci/hotplug/rpaphp_core.c

@@ -37,7 +37,7 @@
 				/* and pci_do_scan_bus */
 #include "rpaphp.h"
 
-int debug;
+int rpaphp_debug;
 LIST_HEAD(rpaphp_slot_head);
 
 #define DRIVER_VERSION	"0.1"
@@ -50,7 +50,7 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 
-module_param(debug, bool, 0644);
+module_param_named(debug, rpaphp_debug, bool, 0644);
 
 /**
  * set_attention_status - set attention LED

drivers/pci/hotplug/rpaphp_pci.c

@@ -123,7 +123,7 @@ int rpaphp_enable_slot(struct slot *slot)
 			slot->state = CONFIGURED;
 		}
 
-		if (debug) {
+		if (rpaphp_debug) {
 			struct pci_dev *dev;
 			dbg("%s: pci_devs of slot[%s]\n", __func__, slot->dn->full_name);
 			list_for_each_entry (dev, &bus->devices, bus_list)

drivers/pci/msi.c

@@ -378,23 +378,21 @@ static int msi_capability_init(struct pci_dev *dev)
 	entry->msi_attrib.masked = 1;
 	entry->msi_attrib.default_irq = dev->irq;	/* Save IOAPIC IRQ */
 	entry->msi_attrib.pos = pos;
-	if (is_mask_bit_support(control)) {
+	if (entry->msi_attrib.maskbit) {
 		entry->mask_base = (void __iomem *)(long)msi_mask_bits_reg(pos,
-				is_64bit_address(control));
+				entry->msi_attrib.is_64);
 	}
 	entry->dev = dev;
 	if (entry->msi_attrib.maskbit) {
 		unsigned int maskbits, temp;
 		/* All MSIs are unmasked by default, Mask them all */
 		pci_read_config_dword(dev,
-			msi_mask_bits_reg(pos, is_64bit_address(control)),
+			msi_mask_bits_reg(pos, entry->msi_attrib.is_64),
 			&maskbits);
 		temp = (1 << multi_msi_capable(control));
 		temp = ((temp - 1) & ~temp);
 		maskbits |= temp;
-		pci_write_config_dword(dev,
-			msi_mask_bits_reg(pos, is_64bit_address(control)),
-			maskbits);
+		pci_write_config_dword(dev, entry->msi_attrib.is_64, maskbits);
 		entry->msi_attrib.maskbits_mask = temp;
 	}
 	list_add_tail(&entry->list, &dev->msi_list);

drivers/pci/pci-driver.c

@@ -43,18 +43,32 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
 {
 	struct pci_dynid *dynid;
 	struct pci_driver *pdrv = to_pci_driver(driver);
+	const struct pci_device_id *ids = pdrv->id_table;
 	__u32 vendor, device, subvendor=PCI_ANY_ID,
 		subdevice=PCI_ANY_ID, class=0, class_mask=0;
 	unsigned long driver_data=0;
 	int fields=0;
-	int retval = 0;
+	int retval;
 
-	fields = sscanf(buf, "%x %x %x %x %x %x %lux",
+	fields = sscanf(buf, "%x %x %x %x %x %x %lx",
 			&vendor, &device, &subvendor, &subdevice,
 			&class, &class_mask, &driver_data);
 	if (fields < 2)
 		return -EINVAL;
 
+	/* Only accept driver_data values that match an existing id_table
+	   entry */
+	retval = -EINVAL;
+	while (ids->vendor || ids->subvendor || ids->class_mask) {
+		if (driver_data == ids->driver_data) {
+			retval = 0;
+			break;
+		}
+		ids++;
+	}
+	if (retval)	/* No match */
+		return retval;
+
 	dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
 	if (!dynid)
 		return -ENOMEM;
@@ -65,8 +79,7 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
 	dynid->id.subdevice = subdevice;
 	dynid->id.class = class;
 	dynid->id.class_mask = class_mask;
-	dynid->id.driver_data = pdrv->dynids.use_driver_data ?
-		driver_data : 0UL;
+	dynid->id.driver_data = driver_data;
 
 	spin_lock(&pdrv->dynids.lock);
 	list_add_tail(&dynid->node, &pdrv->dynids.list);

drivers/pci/pci.c

@@ -213,10 +213,13 @@ int pci_bus_find_capability(struct pci_bus *bus, unsigned int devfn, int cap)
 int pci_find_ext_capability(struct pci_dev *dev, int cap)
 {
 	u32 header;
-	int ttl = 480; /* 3840 bytes, minimum 8 bytes per capability */
-	int pos = 0x100;
+	int ttl;
+	int pos = PCI_CFG_SPACE_SIZE;
 
-	if (dev->cfg_size <= 256)
+	/* minimum 8 bytes per capability */
+	ttl = (PCI_CFG_SPACE_EXP_SIZE - PCI_CFG_SPACE_SIZE) / 8;
+
+	if (dev->cfg_size <= PCI_CFG_SPACE_SIZE)
 		return 0;
 
 	if (pci_read_config_dword(dev, pos, &header) != PCIBIOS_SUCCESSFUL)
@@ -234,7 +237,7 @@ int pci_find_ext_capability(struct pci_dev *dev, int cap)
 			return pos;
 
 		pos = PCI_EXT_CAP_NEXT(header);
-		if (pos < 0x100)
+		if (pos < PCI_CFG_SPACE_SIZE)
 			break;
 
 		if (pci_read_config_dword(dev, pos, &header) != PCIBIOS_SUCCESSFUL)
@@ -1126,6 +1129,27 @@ int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable)
 	return pme_done ? 0 : error;
 }
 
+/**
+ * pci_wake_from_d3 - enable/disable device to wake up from D3_hot or D3_cold
+ * @dev: PCI device to prepare
+ * @enable: True to enable wake-up event generation; false to disable
+ *
+ * Many drivers want the device to wake up the system from D3_hot or D3_cold
+ * and this function allows them to set that up cleanly - pci_enable_wake()
+ * should not be called twice in a row to enable wake-up due to PCI PM vs ACPI
+ * ordering constraints.
+ *
+ * This function only returns error code if the device is not capable of
+ * generating PME# from both D3_hot and D3_cold, and the platform is unable to
+ * enable wake-up power for it.
+ */
+int pci_wake_from_d3(struct pci_dev *dev, bool enable)
+{
+	return pci_pme_capable(dev, PCI_D3cold) ?
+			pci_enable_wake(dev, PCI_D3cold, enable) :
+			pci_enable_wake(dev, PCI_D3hot, enable);
+}
+
 /**
  * pci_target_state - find an appropriate low power state for a given PCI dev
  * @dev: PCI device
@@ -1242,25 +1266,25 @@ void pci_pm_init(struct pci_dev *dev)
 	dev->d1_support = false;
 	dev->d2_support = false;
 	if (!pci_no_d1d2(dev)) {
-		if (pmc & PCI_PM_CAP_D1) {
-			dev_printk(KERN_DEBUG, &dev->dev, "supports D1\n");
+		if (pmc & PCI_PM_CAP_D1)
 			dev->d1_support = true;
-		}
-		if (pmc & PCI_PM_CAP_D2) {
-			dev_printk(KERN_DEBUG, &dev->dev, "supports D2\n");
+		if (pmc & PCI_PM_CAP_D2)
 			dev->d2_support = true;
-		}
+
+		if (dev->d1_support || dev->d2_support)
+			dev_printk(KERN_DEBUG, &dev->dev, "supports%s%s\n",
+				   dev->d1_support ? " D1" : "",
+				   dev->d2_support ? " D2" : "");
 	}
 
 	pmc &= PCI_PM_CAP_PME_MASK;
 	if (pmc) {
-		dev_printk(KERN_INFO, &dev->dev,
-			"PME# supported from%s%s%s%s%s\n",
-			(pmc & PCI_PM_CAP_PME_D0) ? " D0" : "",
-			(pmc & PCI_PM_CAP_PME_D1) ? " D1" : "",
-			(pmc & PCI_PM_CAP_PME_D2) ? " D2" : "",
-			(pmc & PCI_PM_CAP_PME_D3) ? " D3hot" : "",
-			(pmc & PCI_PM_CAP_PME_D3cold) ? " D3cold" : "");
+		dev_info(&dev->dev, "PME# supported from%s%s%s%s%s\n",
+			 (pmc & PCI_PM_CAP_PME_D0) ? " D0" : "",
+			 (pmc & PCI_PM_CAP_PME_D1) ? " D1" : "",
+			 (pmc & PCI_PM_CAP_PME_D2) ? " D2" : "",
+			 (pmc & PCI_PM_CAP_PME_D3) ? " D3hot" : "",
+			 (pmc & PCI_PM_CAP_PME_D3cold) ? " D3cold" : "");
 		dev->pme_support = pmc >> PCI_PM_CAP_PME_SHIFT;
 		/*
 		 * Make device's PM flags reflect the wake-up capability, but
@@ -1275,6 +1299,38 @@ void pci_pm_init(struct pci_dev *dev)
 	}
 }
 
+/**
+ * pci_enable_ari - enable ARI forwarding if hardware support it
+ * @dev: the PCI device
+ */
+void pci_enable_ari(struct pci_dev *dev)
+{
+	int pos;
+	u32 cap;
+	u16 ctrl;
+
+	if (!dev->is_pcie)
+		return;
+
+	if (dev->pcie_type != PCI_EXP_TYPE_ROOT_PORT &&
+	    dev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
+		return;
+
+	pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
+	if (!pos)
+		return;
+
+	pci_read_config_dword(dev, pos + PCI_EXP_DEVCAP2, &cap);
+	if (!(cap & PCI_EXP_DEVCAP2_ARI))
+		return;
+
+	pci_read_config_word(dev, pos + PCI_EXP_DEVCTL2, &ctrl);
+	ctrl |= PCI_EXP_DEVCTL2_ARI;
+	pci_write_config_word(dev, pos + PCI_EXP_DEVCTL2, ctrl);
+
+	dev->ari_enabled = 1;
+}
+
 int
 pci_get_interrupt_pin(struct pci_dev *dev, struct pci_dev **bridge)
 {
@@ -1942,6 +1998,7 @@ EXPORT_SYMBOL(pci_restore_state);
 EXPORT_SYMBOL(pci_pme_capable);
 EXPORT_SYMBOL(pci_pme_active);
 EXPORT_SYMBOL(pci_enable_wake);
+EXPORT_SYMBOL(pci_wake_from_d3);
 EXPORT_SYMBOL(pci_target_state);
 EXPORT_SYMBOL(pci_prepare_to_sleep);
 EXPORT_SYMBOL(pci_back_from_sleep);

drivers/pci/pci.h

+#ifndef DRIVERS_PCI_H
+#define DRIVERS_PCI_H
+
+#define PCI_CFG_SPACE_SIZE	256
+#define PCI_CFG_SPACE_EXP_SIZE	4096
+
 /* Functions internal to the PCI core code */
 
 extern int pci_uevent(struct device *dev, struct kobj_uevent_env *env);
@@ -76,7 +82,13 @@ static inline int pci_proc_detach_bus(struct pci_bus *bus) { return 0; }
 /* Functions for PCI Hotplug drivers to use */
 extern unsigned int pci_do_scan_bus(struct pci_bus *bus);
 
+#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 struct rw_semaphore pci_bus_sem;
@@ -109,6 +121,7 @@ static inline int pci_no_d1d2(struct pci_dev *dev)
 extern int pcie_mch_quirk;
 extern struct device_attribute pci_dev_attrs[];
 extern struct device_attribute dev_attr_cpuaffinity;
+extern struct device_attribute dev_attr_cpulistaffinity;
 
 /**
  * pci_match_one_device - Tell if a PCI device structure has a matching
@@ -144,3 +157,16 @@ struct pci_slot_attribute {
 };
 #define to_pci_slot_attr(s) container_of(s, struct pci_slot_attribute, attr)
 
+extern void pci_enable_ari(struct pci_dev *dev);
+/**
+ * pci_ari_enabled - query ARI forwarding status
+ * @dev: the PCI device
+ *
+ * Returns 1 if ARI forwarding is enabled, or 0 if not enabled;
+ */
+static inline int pci_ari_enabled(struct pci_dev *dev)
+{
+	return dev->ari_enabled;
+}
+
+#endif /* DRIVERS_PCI_H */

drivers/pci/pcie/aer/aerdrv.c

@@ -105,7 +105,7 @@ static irqreturn_t aer_irq(int irq, void *context)
 	unsigned long flags;
 	int pos;
 
-	pos = pci_find_aer_capability(pdev->port);
+	pos = pci_find_ext_capability(pdev->port, PCI_EXT_CAP_ID_ERR);
 	/*
 	 * Must lock access to Root Error Status Reg, Root Error ID Reg,
 	 * and Root error producer/consumer index
@@ -252,7 +252,7 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev)
 	u32 status;
 	int pos;
 
-	pos = pci_find_aer_capability(dev);
+	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
 
 	/* Disable Root's interrupt in response to error messages */
 	pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, 0);
@@ -316,7 +316,7 @@ static void aer_error_resume(struct pci_dev *dev)
 	pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, reg16);
 
 	/* Clean AER Root Error Status */
-	pos = pci_find_aer_capability(dev);
+	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
 	pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
 	pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask);
 	if (dev->error_state == pci_channel_io_normal)

drivers/pci/pcie/aer/aerdrv_core.c

@@ -28,41 +28,15 @@
 static int forceload;
 module_param(forceload, bool, 0);
 
-#define PCI_CFG_SPACE_SIZE	(0x100)
-int pci_find_aer_capability(struct pci_dev *dev)
-{
-	int pos;
-	u32 reg32 = 0;
-
-	/* Check if it's a pci-express device */
-	pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
-	if (!pos)
-		return 0;
-
-	/* Check if it supports pci-express AER */
-	pos = PCI_CFG_SPACE_SIZE;
-	while (pos) {
-		if (pci_read_config_dword(dev, pos, &reg32))
-			return 0;
-
-		/* some broken boards return ~0 */
-		if (reg32 == 0xffffffff)
-			return 0;
-
-		if (PCI_EXT_CAP_ID(reg32) == PCI_EXT_CAP_ID_ERR)
-			break;
-
-		pos = reg32 >> 20;
-	}
-
-	return pos;
-}
-
 int pci_enable_pcie_error_reporting(struct pci_dev *dev)
 {
 	u16 reg16 = 0;
 	int pos;
 
+	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
+	if (!pos)
+		return -EIO;
+
 	pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
 	if (!pos)
 		return -EIO;
@@ -102,7 +76,7 @@ int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
 	int pos;
 	u32 status, mask;
 
-	pos = pci_find_aer_capability(dev);
+	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
 	if (!pos)
 		return -EIO;
 
@@ -123,7 +97,7 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
 	int pos;
 	u32 status;
 
-	pos = pci_find_aer_capability(dev);
+	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
 	if (!pos)
 		return -EIO;
 
@@ -502,7 +476,7 @@ static void handle_error_source(struct pcie_device * aerdev,
 		 * Correctable error does not need software intevention.
 		 * No need to go through error recovery process.
 		 */
-		pos = pci_find_aer_capability(dev);
+		pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
 		if (pos)
 			pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS,
 					info.status);
@@ -542,7 +516,7 @@ void aer_enable_rootport(struct aer_rpc *rpc)
 	reg16 &= ~(SYSTEM_ERROR_INTR_ON_MESG_MASK);
 	pci_write_config_word(pdev, pos + PCI_EXP_RTCTL, reg16);
 
-	aer_pos = pci_find_aer_capability(pdev);
+	aer_pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
 	/* Clear error status */
 	pci_read_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, &reg32);
 	pci_write_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, reg32);
@@ -579,7 +553,7 @@ static void disable_root_aer(struct aer_rpc *rpc)
 	u32 reg32;
 	int pos;
 
-	pos = pci_find_aer_capability(pdev);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
 	/* Disable Root's interrupt in response to error messages */
 	pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0);
 
@@ -618,7 +592,7 @@ static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
 {
 	int pos;
 
-	pos = pci_find_aer_capability(dev);
+	pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
 
 	/* The device might not support AER */
 	if (!pos)
@@ -755,7 +729,6 @@ int aer_init(struct pcie_device *dev)
 	return AER_SUCCESS;
 }
 
-EXPORT_SYMBOL_GPL(pci_find_aer_capability);
 EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
 EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
 EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);

drivers/pci/pcie/aspm.c

@@ -528,9 +528,9 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
 		pci_read_config_dword(child_dev, child_pos + PCI_EXP_DEVCAP,
 			&reg32);
 		if (!(reg32 & PCI_EXP_DEVCAP_RBER) && !aspm_force) {
-			printk("Pre-1.1 PCIe device detected, "
-				"disable ASPM for %s. It can be enabled forcedly"
-				" with 'pcie_aspm=force'\n", pci_name(pdev));
+			dev_printk(KERN_INFO, &child_dev->dev, "disabling ASPM"
+				" on pre-1.1 PCIe device.  You can enable it"
+				" with 'pcie_aspm=force'\n");
 			return -EINVAL;
 		}
 	}

drivers/pci/pcie/portdrv.h

@@ -25,7 +25,6 @@
 #define PCIE_CAPABILITIES_REG		0x2
 #define PCIE_SLOT_CAPABILITIES_REG	0x14
 #define PCIE_PORT_DEVICE_MAXSERVICES	4
-#define PCI_CFG_SPACE_SIZE		256
 
 #define get_descriptor_id(type, service) (((type - 4) << 4) | service)
 

drivers/pci/pcie/portdrv_core.c

@@ -195,24 +195,11 @@ static int get_port_device_capability(struct pci_dev *dev)
 	/* PME Capable - root port capability */
 	if (((reg16 >> 4) & PORT_TYPE_MASK) == PCIE_RC_PORT)
 		services |= PCIE_PORT_SERVICE_PME;
-	
-	pos = PCI_CFG_SPACE_SIZE;
-	while (pos) {
-		pci_read_config_dword(dev, pos, &reg32);
-		switch (reg32 & 0xffff) {
-		case PCI_EXT_CAP_ID_ERR:
-			services |= PCIE_PORT_SERVICE_AER;
-			pos = reg32 >> 20;
-			break;
-		case PCI_EXT_CAP_ID_VC:
-			services |= PCIE_PORT_SERVICE_VC;
-			pos = reg32 >> 20;
-			break;
-		default:
-			pos = 0;
-			break;
-		}
-	}
+
+	if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR))
+		services |= PCIE_PORT_SERVICE_AER;
+	if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_VC))
+		services |= PCIE_PORT_SERVICE_VC;
 
 	return services;
 }

drivers/pci/pcie/portdrv_pci.c

@@ -91,7 +91,7 @@ static int __devinit pcie_portdrv_probe (struct pci_dev *dev,
 	
 	pci_set_master(dev);
         if (!dev->irq && dev->pin) {
-		dev_warn(&dev->dev, "device [%04x/%04x] has invalid IRQ; "
+		dev_warn(&dev->dev, "device [%04x:%04x] has invalid IRQ; "
 			 "check vendor BIOS\n", dev->vendor, dev->device);
 	}
 	if (pcie_port_device_register(dev)) {

drivers/pci/probe.c

@@ -14,8 +14,6 @@
 
 #define CARDBUS_LATENCY_TIMER	176	/* secondary latency timer */
 #define CARDBUS_RESERVE_BUSNR	3
-#define PCI_CFG_SPACE_SIZE	256
-#define PCI_CFG_SPACE_EXP_SIZE	4096
 
 /* Ugh.  Need to stop exporting this to modules. */
 LIST_HEAD(pci_root_buses);
@@ -44,72 +42,6 @@ int no_pci_devices(void)
 }
 EXPORT_SYMBOL(no_pci_devices);
 
-#ifdef HAVE_PCI_LEGACY
-/**
- * pci_create_legacy_files - create legacy I/O port and memory files
- * @b: bus to create files under
- *
- * Some platforms allow access to legacy I/O port and ISA memory space on
- * a per-bus basis.  This routine creates the files and ties them into
- * their associated read, write and mmap files from pci-sysfs.c
- *
- * On error unwind, but don't propogate the error to the caller
- * as it is ok to set up the PCI bus without these files.
- */
-static void pci_create_legacy_files(struct pci_bus *b)
-{
-	int error;
-
-	b->legacy_io = kzalloc(sizeof(struct bin_attribute) * 2,
-			       GFP_ATOMIC);
-	if (!b->legacy_io)
-		goto kzalloc_err;
-
-	b->legacy_io->attr.name = "legacy_io";
-	b->legacy_io->size = 0xffff;
-	b->legacy_io->attr.mode = S_IRUSR | S_IWUSR;
-	b->legacy_io->read = pci_read_legacy_io;
-	b->legacy_io->write = pci_write_legacy_io;
-	error = device_create_bin_file(&b->dev, b->legacy_io);
-	if (error)
-		goto legacy_io_err;
-
-	/* Allocated above after the legacy_io struct */
-	b->legacy_mem = b->legacy_io + 1;
-	b->legacy_mem->attr.name = "legacy_mem";
-	b->legacy_mem->size = 1024*1024;
-	b->legacy_mem->attr.mode = S_IRUSR | S_IWUSR;
-	b->legacy_mem->mmap = pci_mmap_legacy_mem;
-	error = device_create_bin_file(&b->dev, b->legacy_mem);
-	if (error)
-		goto legacy_mem_err;
-
-	return;
-
-legacy_mem_err:
-	device_remove_bin_file(&b->dev, b->legacy_io);
-legacy_io_err:
-	kfree(b->legacy_io);
-	b->legacy_io = NULL;
-kzalloc_err:
-	printk(KERN_WARNING "pci: warning: could not create legacy I/O port "
-	       "and ISA memory resources to sysfs\n");
-	return;
-}
-
-void pci_remove_legacy_files(struct pci_bus *b)
-{
-	if (b->legacy_io) {
-		device_remove_bin_file(&b->dev, b->legacy_io);
-		device_remove_bin_file(&b->dev, b->legacy_mem);
-		kfree(b->legacy_io); /* both are allocated here */
-	}
-}
-#else /* !HAVE_PCI_LEGACY */
-static inline void pci_create_legacy_files(struct pci_bus *bus) { return; }
-void pci_remove_legacy_files(struct pci_bus *bus) { return; }
-#endif /* HAVE_PCI_LEGACY */
-
 /*
  * PCI Bus Class Devices
  */
@@ -219,7 +151,7 @@ static inline enum pci_bar_type decode_bar(struct resource *res, u32 bar)
 
 	res->flags = bar & ~PCI_BASE_ADDRESS_MEM_MASK;
 
-	if (res->flags == PCI_BASE_ADDRESS_MEM_TYPE_64)
+	if (res->flags & PCI_BASE_ADDRESS_MEM_TYPE_64)
 		return pci_bar_mem64;
 	return pci_bar_mem32;
 }
@@ -304,8 +236,8 @@ static int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 		} else {
 			res->start = l64;
 			res->end = l64 + sz64;
-			printk(KERN_DEBUG "PCI: %s reg %x 64bit mmio: %pR\n",
-				pci_name(dev), pos, res);
+			dev_printk(KERN_DEBUG, &dev->dev,
+				"reg %x 64bit mmio: %pR\n", pos, res);
 		}
 	} else {
 		sz = pci_size(l, sz, mask);
@@ -315,10 +247,10 @@ static int __pci_read_base(struct pci_dev *dev, enum pci_bar_type type,
 
 		res->start = l;
 		res->end = l + sz;
-		printk(KERN_DEBUG "PCI: %s reg %x %s: %pR\n",
-		       pci_name(dev), pos,
-		       (res->flags & IORESOURCE_IO) ? "io port":"32bit mmio",
-		       res);
+
+		dev_printk(KERN_DEBUG, &dev->dev, "reg %x %s: %pR\n", pos,
+			(res->flags & IORESOURCE_IO) ? "io port" : "32bit mmio",
+			res);
 	}
 
  out:
@@ -389,8 +321,7 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
 			res->start = base;
 		if (!res->end)
 			res->end = limit + 0xfff;
-		printk(KERN_DEBUG "PCI: bridge %s io port: %pR\n",
-		       pci_name(dev), res);
+		dev_printk(KERN_DEBUG, &dev->dev, "bridge io port: %pR\n", res);
 	}
 
 	res = child->resource[1];
@@ -402,8 +333,8 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
 		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM;
 		res->start = base;
 		res->end = limit + 0xfffff;
-		printk(KERN_DEBUG "PCI: bridge %s 32bit mmio: %pR\n",
-		       pci_name(dev), res);
+		dev_printk(KERN_DEBUG, &dev->dev, "bridge 32bit mmio: %pR\n",
+			res);
 	}
 
 	res = child->resource[2];
@@ -439,9 +370,9 @@ void __devinit pci_read_bridge_bases(struct pci_bus *child)
 		res->flags = (mem_base_lo & PCI_MEMORY_RANGE_TYPE_MASK) | IORESOURCE_MEM | IORESOURCE_PREFETCH;
 		res->start = base;
 		res->end = limit + 0xfffff;
-		printk(KERN_DEBUG "PCI: bridge %s %sbit mmio pref: %pR\n",
-		       pci_name(dev),
-		       (res->flags & PCI_PREF_RANGE_TYPE_64) ? "64":"32", res);
+		dev_printk(KERN_DEBUG, &dev->dev, "bridge %sbit mmio pref: %pR\n",
+			(res->flags & PCI_PREF_RANGE_TYPE_64) ? "64" : "32",
+			res);
 	}
 }
 
@@ -762,7 +693,7 @@ static int pci_setup_device(struct pci_dev * dev)
 	dev->class = class;
 	class >>= 8;
 
-	dev_dbg(&dev->dev, "found [%04x/%04x] class %06x header type %02x\n",
+	dev_dbg(&dev->dev, "found [%04x:%04x] class %06x header type %02x\n",
 		 dev->vendor, dev->device, class, dev->hdr_type);
 
 	/* "Unknown power state" */
@@ -844,6 +775,11 @@ static int pci_setup_device(struct pci_dev * dev)
 	return 0;
 }
 
+static void pci_release_capabilities(struct pci_dev *dev)
+{
+	pci_vpd_release(dev);
+}
+
 /**
  * pci_release_dev - free a pci device structure when all users of it are finished.
  * @dev: device that's been disconnected
@@ -856,7 +792,7 @@ static void pci_release_dev(struct device *dev)
 	struct pci_dev *pci_dev;
 
 	pci_dev = to_pci_dev(dev);
-	pci_vpd_release(pci_dev);
+	pci_release_capabilities(pci_dev);
 	kfree(pci_dev);
 }
 
@@ -887,8 +823,9 @@ static void set_pcie_port_type(struct pci_dev *pdev)
 int pci_cfg_space_size_ext(struct pci_dev *dev)
 {
 	u32 status;
+	int pos = PCI_CFG_SPACE_SIZE;
 
-	if (pci_read_config_dword(dev, 256, &status) != PCIBIOS_SUCCESSFUL)
+	if (pci_read_config_dword(dev, pos, &status) != PCIBIOS_SUCCESSFUL)
 		goto fail;
 	if (status == 0xffffffff)
 		goto fail;
@@ -936,8 +873,6 @@ struct pci_dev *alloc_pci_dev(void)
 
 	INIT_LIST_HEAD(&dev->bus_list);
 
-	pci_msi_init_pci_dev(dev);
-
 	return dev;
 }
 EXPORT_SYMBOL(alloc_pci_dev);
@@ -949,6 +884,7 @@ EXPORT_SYMBOL(alloc_pci_dev);
 static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn)
 {
 	struct pci_dev *dev;
+	struct pci_slot *slot;
 	u32 l;
 	u8 hdr_type;
 	int delay = 1;
@@ -997,6 +933,10 @@ static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn)
 	dev->error_state = pci_channel_io_normal;
 	set_pcie_port_type(dev);
 
+	list_for_each_entry(slot, &bus->slots, list)
+		if (PCI_SLOT(devfn) == slot->number)
+			dev->slot = slot;
+
 	/* Assume 32-bit PCI; let 64-bit PCI cards (which are far rarer)
 	   set this higher, assuming the system even supports it.  */
 	dev->dma_mask = 0xffffffff;
@@ -1005,9 +945,22 @@ static struct pci_dev *pci_scan_device(struct pci_bus *bus, int devfn)
 		return NULL;
 	}
 
+	return dev;
+}
+
+static void pci_init_capabilities(struct pci_dev *dev)
+{
+	/* MSI/MSI-X list */
+	pci_msi_init_pci_dev(dev);
+
+	/* Power Management */
+	pci_pm_init(dev);
+
+	/* Vital Product Data */
 	pci_vpd_pci22_init(dev);
 
-	return dev;
+	/* Alternative Routing-ID Forwarding */
+	pci_enable_ari(dev);
 }
 
 void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
@@ -1026,8 +979,8 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
 	/* Fix up broken headers */
 	pci_fixup_device(pci_fixup_header, dev);
 
-	/* Initialize power management of the device */
-	pci_pm_init(dev);
+	/* Initialize various capabilities */
+	pci_init_capabilities(dev);
 
 	/*
 	 * Add the device to our list of discovered devices

drivers/pci/quirks.c

@@ -24,6 +24,14 @@
 #include <linux/kallsyms.h>
 #include "pci.h"
 
+int isa_dma_bridge_buggy;
+EXPORT_SYMBOL(isa_dma_bridge_buggy);
+int pci_pci_problems;
+EXPORT_SYMBOL(pci_pci_problems);
+int pcie_mch_quirk;
+EXPORT_SYMBOL(pcie_mch_quirk);
+
+#ifdef CONFIG_PCI_QUIRKS
 /* The Mellanox Tavor device gives false positive parity errors
  * Mark this device with a broken_parity_status, to allow
  * PCI scanning code to "skip" this now blacklisted device.
@@ -62,8 +70,6 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82441,	quirk_p
     
     This appears to be BIOS not version dependent. So presumably there is a 
     chipset level fix */
-int isa_dma_bridge_buggy;
-EXPORT_SYMBOL(isa_dma_bridge_buggy);
     
 static void __devinit quirk_isa_dma_hangs(struct pci_dev *dev)
 {
@@ -84,9 +90,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC,	PCI_DEVICE_ID_NEC_CBUS_1,	quirk_isa_d
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC,	PCI_DEVICE_ID_NEC_CBUS_2,	quirk_isa_dma_hangs);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC,	PCI_DEVICE_ID_NEC_CBUS_3,	quirk_isa_dma_hangs);
 
-int pci_pci_problems;
-EXPORT_SYMBOL(pci_pci_problems);
-
 /*
  *	Chipsets where PCI->PCI transfers vanish or hang
  */
@@ -1362,9 +1365,6 @@ static void __init quirk_alder_ioapic(struct pci_dev *pdev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_EESSC,	quirk_alder_ioapic);
 #endif
 
-int pcie_mch_quirk;
-EXPORT_SYMBOL(pcie_mch_quirk);
-
 static void __devinit quirk_pcie_mch(struct pci_dev *pdev)
 {
 	pcie_mch_quirk = 1;
@@ -1555,84 +1555,6 @@ static void __devinit fixup_rev1_53c810(struct pci_dev* dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NCR, PCI_DEVICE_ID_NCR_53C810, fixup_rev1_53c810);
 
-static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
-{
-	while (f < end) {
-		if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
- 		    (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
-#ifdef DEBUG
-			dev_dbg(&dev->dev, "calling %pF\n", f->hook);
-#endif
-			f->hook(dev);
-		}
-		f++;
-	}
-}
-
-extern struct pci_fixup __start_pci_fixups_early[];
-extern struct pci_fixup __end_pci_fixups_early[];
-extern struct pci_fixup __start_pci_fixups_header[];
-extern struct pci_fixup __end_pci_fixups_header[];
-extern struct pci_fixup __start_pci_fixups_final[];
-extern struct pci_fixup __end_pci_fixups_final[];
-extern struct pci_fixup __start_pci_fixups_enable[];
-extern struct pci_fixup __end_pci_fixups_enable[];
-extern struct pci_fixup __start_pci_fixups_resume[];
-extern struct pci_fixup __end_pci_fixups_resume[];
-extern struct pci_fixup __start_pci_fixups_resume_early[];
-extern struct pci_fixup __end_pci_fixups_resume_early[];
-extern struct pci_fixup __start_pci_fixups_suspend[];
-extern struct pci_fixup __end_pci_fixups_suspend[];
-
-
-void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
-{
-	struct pci_fixup *start, *end;
-
-	switch(pass) {
-	case pci_fixup_early:
-		start = __start_pci_fixups_early;
-		end = __end_pci_fixups_early;
-		break;
-
-	case pci_fixup_header:
-		start = __start_pci_fixups_header;
-		end = __end_pci_fixups_header;
-		break;
-
-	case pci_fixup_final:
-		start = __start_pci_fixups_final;
-		end = __end_pci_fixups_final;
-		break;
-
-	case pci_fixup_enable:
-		start = __start_pci_fixups_enable;
-		end = __end_pci_fixups_enable;
-		break;
-
-	case pci_fixup_resume:
-		start = __start_pci_fixups_resume;
-		end = __end_pci_fixups_resume;
-		break;
-
-	case pci_fixup_resume_early:
-		start = __start_pci_fixups_resume_early;
-		end = __end_pci_fixups_resume_early;
-		break;
-
-	case pci_fixup_suspend:
-		start = __start_pci_fixups_suspend;
-		end = __end_pci_fixups_suspend;
-		break;
-
-	default:
-		/* stupid compiler warning, you would think with an enum... */
-		return;
-	}
-	pci_do_fixups(dev, start, end);
-}
-EXPORT_SYMBOL(pci_fixup_device);
-
 /* Enable 1k I/O space granularity on the Intel P64H2 */
 static void __devinit quirk_p64h2_1k_io(struct pci_dev *dev)
 {
@@ -2006,3 +1928,82 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375,
 			quirk_msi_intx_disable_bug);
 
 #endif /* CONFIG_PCI_MSI */
+
+static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end)
+{
+	while (f < end) {
+		if ((f->vendor == dev->vendor || f->vendor == (u16) PCI_ANY_ID) &&
+ 		    (f->device == dev->device || f->device == (u16) PCI_ANY_ID)) {
+			dev_dbg(&dev->dev, "calling %pF\n", f->hook);
+			f->hook(dev);
+		}
+		f++;
+	}
+}
+
+extern struct pci_fixup __start_pci_fixups_early[];
+extern struct pci_fixup __end_pci_fixups_early[];
+extern struct pci_fixup __start_pci_fixups_header[];
+extern struct pci_fixup __end_pci_fixups_header[];
+extern struct pci_fixup __start_pci_fixups_final[];
+extern struct pci_fixup __end_pci_fixups_final[];
+extern struct pci_fixup __start_pci_fixups_enable[];
+extern struct pci_fixup __end_pci_fixups_enable[];
+extern struct pci_fixup __start_pci_fixups_resume[];
+extern struct pci_fixup __end_pci_fixups_resume[];
+extern struct pci_fixup __start_pci_fixups_resume_early[];
+extern struct pci_fixup __end_pci_fixups_resume_early[];
+extern struct pci_fixup __start_pci_fixups_suspend[];
+extern struct pci_fixup __end_pci_fixups_suspend[];
+
+
+void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev)
+{
+	struct pci_fixup *start, *end;
+
+	switch(pass) {
+	case pci_fixup_early:
+		start = __start_pci_fixups_early;
+		end = __end_pci_fixups_early;
+		break;
+
+	case pci_fixup_header:
+		start = __start_pci_fixups_header;
+		end = __end_pci_fixups_header;
+		break;
+
+	case pci_fixup_final:
+		start = __start_pci_fixups_final;
+		end = __end_pci_fixups_final;
+		break;
+
+	case pci_fixup_enable:
+		start = __start_pci_fixups_enable;
+		end = __end_pci_fixups_enable;
+		break;
+
+	case pci_fixup_resume:
+		start = __start_pci_fixups_resume;
+		end = __end_pci_fixups_resume;
+		break;
+
+	case pci_fixup_resume_early:
+		start = __start_pci_fixups_resume_early;
+		end = __end_pci_fixups_resume_early;
+		break;
+
+	case pci_fixup_suspend:
+		start = __start_pci_fixups_suspend;
+		end = __end_pci_fixups_suspend;
+		break;
+
+	default:
+		/* stupid compiler warning, you would think with an enum... */
+		return;
+	}
+	pci_do_fixups(dev, start, end);
+}
+#else
+void pci_fixup_device(enum pci_fixup_pass pass, struct pci_dev *dev) {}
+#endif
+EXPORT_SYMBOL(pci_fixup_device);

drivers/pci/remove.c

@@ -73,6 +73,7 @@ void pci_remove_bus(struct pci_bus *pci_bus)
 	up_write(&pci_bus_sem);
 	pci_remove_legacy_files(pci_bus);
 	device_remove_file(&pci_bus->dev, &dev_attr_cpuaffinity);
+	device_remove_file(&pci_bus->dev, &dev_attr_cpulistaffinity);
 	device_unregister(&pci_bus->dev);
 }
 EXPORT_SYMBOL(pci_remove_bus);
@@ -114,13 +115,9 @@ void pci_remove_behind_bridge(struct pci_dev *dev)
 {
 	struct list_head *l, *n;
 
-	if (dev->subordinate) {
-		list_for_each_safe(l, n, &dev->subordinate->devices) {
-			struct pci_dev *dev = pci_dev_b(l);
-
-			pci_remove_bus_device(dev);
-		}
-	}
+	if (dev->subordinate)
+		list_for_each_safe(l, n, &dev->subordinate->devices)
+			pci_remove_bus_device(pci_dev_b(l));
 }
 
 static void pci_stop_bus_devices(struct pci_bus *bus)

drivers/pci/setup-bus.c

@@ -299,7 +299,7 @@ static void pbus_size_io(struct pci_bus *bus)
 
 			if (r->parent || !(r->flags & IORESOURCE_IO))
 				continue;
-			r_size = r->end - r->start + 1;
+			r_size = resource_size(r);
 
 			if (r_size < 0x400)
 				/* Might be re-aligned for ISA */
@@ -350,7 +350,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long
 
 			if (r->parent || (r->flags & mask) != type)
 				continue;
-			r_size = r->end - r->start + 1;
+			r_size = resource_size(r);
 			/* For bridges size != alignment */
 			align = resource_alignment(r);
 			order = __ffs(align) - 20;

drivers/pci/setup-res.c

@@ -129,7 +129,7 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
 	resource_size_t size, min, align;
 	int ret;
 
-	size = res->end - res->start + 1;
+	size = resource_size(res);
 	min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM;
 
 	align = resource_alignment(res);

drivers/pci/slot.c

@@ -49,11 +49,16 @@ static ssize_t address_read_file(struct pci_slot *slot, char *buf)
 
 static void pci_slot_release(struct kobject *kobj)
 {
+	struct pci_dev *dev;
 	struct pci_slot *slot = to_pci_slot(kobj);
 
 	pr_debug("%s: releasing pci_slot on %x:%d\n", __func__,
 		 slot->bus->number, slot->number);
 
+	list_for_each_entry(dev, &slot->bus->devices, bus_list)
+		if (PCI_SLOT(dev->devfn) == slot->number)
+			dev->slot = NULL;
+
 	list_del(&slot->list);
 
 	kfree(slot);
@@ -108,6 +113,7 @@ static struct kobj_type pci_slot_ktype = {
 struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
 				 const char *name)
 {
+	struct pci_dev *dev;
 	struct pci_slot *slot;
 	int err;
 
@@ -150,6 +156,10 @@ struct pci_slot *pci_create_slot(struct pci_bus *parent, int slot_nr,
 	INIT_LIST_HEAD(&slot->list);
 	list_add(&slot->list, &parent->slots);
 
+	list_for_each_entry(dev, &parent->devices, bus_list)
+		if (PCI_SLOT(dev->devfn) == slot_nr)
+			dev->slot = slot;
+
 	/* Don't care if debug printk has a -1 for slot_nr */
 	pr_debug("%s: created pci_slot on %04x:%02x:%02x\n",
 		 __func__, pci_domain_nr(parent), parent->number, slot_nr);

drivers/scsi/ipr.c

@@ -7859,7 +7859,6 @@ static struct pci_driver ipr_driver = {
 	.remove = ipr_remove,
 	.shutdown = ipr_shutdown,
 	.err_handler = &ipr_err_handler,
-	.dynids.use_driver_data = 1
 };
 
 /**

drivers/scsi/qla2xxx/qla_os.c

@@ -1566,9 +1566,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 			goto probe_out;
 	}
 
-	if (pci_find_aer_capability(pdev))
-		if (pci_enable_pcie_error_reporting(pdev))
-			goto probe_out;
+	/* This may fail but that's ok */
+	pci_enable_pcie_error_reporting(pdev);
 
 	host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
 	if (host == NULL) {

include/linux/aer.h

@@ -10,7 +10,6 @@
 #if defined(CONFIG_PCIEAER)
 /* pci-e port driver needs this function to enable aer */
 extern int pci_enable_pcie_error_reporting(struct pci_dev *dev);
-extern int pci_find_aer_capability(struct pci_dev *dev);
 extern int pci_disable_pcie_error_reporting(struct pci_dev *dev);
 extern int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev);
 #else
@@ -18,10 +17,6 @@ static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
 {
 	return -EINVAL;
 }
-static inline int pci_find_aer_capability(struct pci_dev *dev)
-{
-	return 0;
-}
 static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
 {
 	return -EINVAL;

include/linux/pci.h

@@ -214,6 +214,7 @@ struct pci_dev {
 	unsigned int	broken_parity_status:1;	/* Device generates false positive parity */
 	unsigned int 	msi_enabled:1;
 	unsigned int	msix_enabled:1;
+	unsigned int	ari_enabled:1;	/* ARI forwarding */
 	unsigned int	is_managed:1;
 	unsigned int	is_pcie:1;
 	pci_dev_flags_t dev_flags;
@@ -347,7 +348,6 @@ struct pci_bus_region {
 struct pci_dynids {
 	spinlock_t lock;            /* protects list, index */
 	struct list_head list;      /* for IDs added at runtime */
-	unsigned int use_driver_data:1; /* pci_device_id->driver_data is used */
 };
 
 /* ---------------------------------------------------------------- */
@@ -456,8 +456,8 @@ struct pci_driver {
 
 /**
  * PCI_VDEVICE - macro used to describe a specific pci device in short form
- * @vend: the vendor name
- * @dev: the 16 bit PCI Device ID
+ * @vendor: the vendor name
+ * @device: the 16 bit PCI Device ID
  *
  * This macro is used to create a struct pci_device_id that matches a
  * specific PCI device.  The subvendor, and subdevice fields will be set
@@ -645,6 +645,7 @@ pci_power_t pci_choose_state(struct pci_dev *dev, pm_message_t state);
 bool pci_pme_capable(struct pci_dev *dev, pci_power_t state);
 void pci_pme_active(struct pci_dev *dev, bool enable);
 int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int 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);
@@ -1118,5 +1119,20 @@ static inline void pci_mmcfg_early_init(void) { }
 static inline void pci_mmcfg_late_init(void) { }
 #endif
 
+#ifdef CONFIG_HAS_IOMEM
+static inline void * pci_ioremap_bar(struct pci_dev *pdev, int bar)
+{
+	/*
+	 * Make sure the BAR is actually a memory resource, not an IO resource
+	 */
+	if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) {
+		WARN_ON(1);
+		return NULL;
+	}
+	return ioremap_nocache(pci_resource_start(pdev, bar),
+				     pci_resource_len(pdev, bar));
+}
+#endif
+
 #endif /* __KERNEL__ */
 #endif /* LINUX_PCI_H */

include/linux/pci_ids.h

@@ -2454,9 +2454,9 @@
 #define PCI_DEVICE_ID_INTEL_ICH10_3	0x3a1a
 #define PCI_DEVICE_ID_INTEL_ICH10_4	0x3a30
 #define PCI_DEVICE_ID_INTEL_ICH10_5	0x3a60
-#define PCI_DEVICE_ID_INTEL_PCH_0	0x3b10
-#define PCI_DEVICE_ID_INTEL_PCH_1	0x3b11
-#define PCI_DEVICE_ID_INTEL_PCH_2	0x3b30
+#define PCI_DEVICE_ID_INTEL_PCH_LPC_MIN	0x3b00
+#define PCI_DEVICE_ID_INTEL_PCH_LPC_MAX	0x3b1f
+#define PCI_DEVICE_ID_INTEL_PCH_SMBUS	0x3b30
 #define PCI_DEVICE_ID_INTEL_IOAT_SNB	0x402f
 #define PCI_DEVICE_ID_INTEL_5100_16	0x65f0
 #define PCI_DEVICE_ID_INTEL_5100_21	0x65f5

include/linux/pci_regs.h

@@ -419,6 +419,10 @@
 #define  PCI_EXP_RTCTL_CRSSVE	0x10	/* CRS Software Visibility Enable */
 #define PCI_EXP_RTCAP		30	/* Root Capabilities */
 #define PCI_EXP_RTSTA		32	/* Root Status */
+#define PCI_EXP_DEVCAP2		36	/* Device Capabilities 2 */
+#define  PCI_EXP_DEVCAP2_ARI	0x20	/* Alternative Routing-ID */
+#define PCI_EXP_DEVCTL2		40	/* Device Control 2 */
+#define  PCI_EXP_DEVCTL2_ARI	0x20	/* Alternative Routing-ID */
 
 /* Extended Capabilities (PCI-X 2.0 and Express) */
 #define PCI_EXT_CAP_ID(header)		(header & 0x0000ffff)
@@ -429,6 +433,7 @@
 #define PCI_EXT_CAP_ID_VC	2
 #define PCI_EXT_CAP_ID_DSN	3
 #define PCI_EXT_CAP_ID_PWR	4
+#define PCI_EXT_CAP_ID_ARI	14
 
 /* Advanced Error Reporting */
 #define PCI_ERR_UNCOR_STATUS	4	/* Uncorrectable Error Status */
@@ -536,5 +541,14 @@
 #define HT_CAPTYPE_GEN3		0xD0	/* Generation 3 hypertransport configuration */
 #define HT_CAPTYPE_PM		0xE0	/* Hypertransport powermanagement configuration */
 
+/* Alternative Routing-ID Interpretation */
+#define PCI_ARI_CAP		0x04	/* ARI Capability Register */
+#define  PCI_ARI_CAP_MFVC	0x0001	/* MFVC Function Groups Capability */
+#define  PCI_ARI_CAP_ACS	0x0002	/* ACS Function Groups Capability */
+#define  PCI_ARI_CAP_NFN(x)	(((x) >> 8) & 0xff) /* Next Function Number */
+#define PCI_ARI_CTRL		0x06	/* ARI Control Register */
+#define  PCI_ARI_CTRL_MFVC	0x0001	/* MFVC Function Groups Enable */
+#define  PCI_ARI_CTRL_ACS	0x0002	/* ACS Function Groups Enable */
+#define  PCI_ARI_CTRL_FG(x)	(((x) >> 4) & 7) /* Function Group */
 
 #endif /* LINUX_PCI_REGS_H */

init/Kconfig

@@ -737,6 +737,14 @@ config VM_EVENT_COUNTERS
 	  on EMBEDDED systems.  /proc/vmstat will only show page counts
 	  if VM event counters are disabled.
 
+config PCI_QUIRKS
+	default y
+	bool "Enable PCI quirk workarounds" if EMBEDDED && PCI
+	help
+	  This enables workarounds for various PCI chipset
+          bugs/quirks. Disable this only if your target machine is
+          unaffected by PCI quirks.
+
 config SLUB_DEBUG
 	default y
 	bool "Enable SLUB debugging support" if EMBEDDED