Commit b1792e36 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  PCI hotplug: Change link order of pciehp & acpiphp
  PCI hotplug: fakephp: Allocate PCI resources before adding the device
  PCI MSI: Fix undefined shift by 32
  PCI PM: Do not wait for buses in B2 or B3 during resume
  PCI PM: Power up devices before restoring their state
  PCI PM: Fix hibernation breakage on EeePC 701
  PCI: irq and pci_ids patch for Intel Tigerpoint DeviceIDs
  PCI PM: Fix suspend error paths and testing facility breakage
parents 859281ff 71a082ef

arch/x86/pci/irq.c

+1 −0
Original line number Diff line number Diff line
@@ -572,6 +572,7 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route 
	case PCI_DEVICE_ID_INTEL_ICH7_1:

	case PCI_DEVICE_ID_INTEL_ICH7_30:

	case PCI_DEVICE_ID_INTEL_ICH7_31:

	case PCI_DEVICE_ID_INTEL_TGP_LPC:

	case PCI_DEVICE_ID_INTEL_ESB2_0:

	case PCI_DEVICE_ID_INTEL_ICH8_0:

	case PCI_DEVICE_ID_INTEL_ICH8_1:

drivers/pci/hotplug/Makefile

+5 −1
Original line number Diff line number Diff line
@@ -5,11 +5,15 @@ 
obj-$(CONFIG_HOTPLUG_PCI)		+= pci_hotplug.o

obj-$(CONFIG_HOTPLUG_PCI_COMPAQ)	+= cpqphp.o

obj-$(CONFIG_HOTPLUG_PCI_IBM)		+= ibmphp.o



# pciehp should be linked before acpiphp in order to allow the native driver

# to attempt to bind first. We can then fall back to generic support.



obj-$(CONFIG_HOTPLUG_PCI_PCIE)		+= pciehp.o

obj-$(CONFIG_HOTPLUG_PCI_ACPI)		+= acpiphp.o

obj-$(CONFIG_HOTPLUG_PCI_ACPI_IBM)	+= acpiphp_ibm.o

obj-$(CONFIG_HOTPLUG_PCI_CPCI_ZT5550)	+= cpcihp_zt5550.o

obj-$(CONFIG_HOTPLUG_PCI_CPCI_GENERIC)	+= cpcihp_generic.o

obj-$(CONFIG_HOTPLUG_PCI_PCIE)		+= pciehp.o

obj-$(CONFIG_HOTPLUG_PCI_SHPC)		+= shpchp.o

obj-$(CONFIG_HOTPLUG_PCI_RPA)		+= rpaphp.o

obj-$(CONFIG_HOTPLUG_PCI_RPA_DLPAR)	+= rpadlpar_io.o

drivers/pci/hotplug/fakephp.c

+26 −16
Original line number Diff line number Diff line
@@ -195,13 +195,13 @@ static void remove_slot_worker(struct work_struct *work) 
 * Tries hard not to re-enable already existing devices;

 * also handles scanning of subfunctions.

 */

static void pci_rescan_slot(struct pci_dev *temp)

static int pci_rescan_slot(struct pci_dev *temp)

{

	struct pci_bus *bus = temp->bus;

	struct pci_dev *dev;

	int func;

	int retval;

	u8 hdr_type;

	int count = 0;



	if (!pci_read_config_byte(temp, PCI_HEADER_TYPE, &hdr_type)) {

		temp->hdr_type = hdr_type & 0x7f;
@@ -213,17 +213,12 @@ static void pci_rescan_slot(struct pci_dev *temp) 
				dbg("New device on %s function %x:%x\n",

					bus->name, temp->devfn >> 3,

					temp->devfn & 7);

				retval = pci_bus_add_device(dev);

				if (retval)

					dev_err(&dev->dev, "error adding "

						"device, continuing.\n");

				else

					add_slot(dev);

				count++;

			}

		}

		/* multifunction device? */

		if (!(hdr_type & 0x80))

			return;

			return count;



		/* continue scanning for other functions */

		for (func = 1, temp->devfn++; func < 8; func++, temp->devfn++) {
@@ -239,16 +234,13 @@ static void pci_rescan_slot(struct pci_dev *temp) 
					dbg("New device on %s function %x:%x\n",

						bus->name, temp->devfn >> 3,

						temp->devfn & 7);

					retval = pci_bus_add_device(dev);

					if (retval)

						dev_err(&dev->dev, "error adding "

							"device, continuing.\n");

					else

						add_slot(dev);

					count++;

				}

			}

		}

	}



	return count;

}
@@ -262,6 +254,8 @@ static void pci_rescan_bus(const struct pci_bus *bus) 
{

	unsigned int devfn;

	struct pci_dev *dev;

	int retval;

	int found = 0;

	dev = alloc_pci_dev();

	if (!dev)

		return;
@@ -270,7 +264,23 @@ static void pci_rescan_bus(const struct pci_bus *bus) 
	dev->sysdata = bus->sysdata;

	for (devfn = 0; devfn < 0x100; devfn += 8) {

		dev->devfn = devfn;

		pci_rescan_slot(dev);

		found += pci_rescan_slot(dev);

	}



	if (found) {

		pci_bus_assign_resources(bus);

		list_for_each_entry(dev, &bus->devices, bus_list) {

			/* Skip already-added devices */

			if (dev->is_added)

					continue;

			retval = pci_bus_add_device(dev);

			if (retval)

				dev_err(&dev->dev,

					"Error adding device, continuing\n");

			else

				add_slot(dev);

		}

		pci_bus_add_devices(bus);

	}

	kfree(dev);

}

drivers/pci/msi.c

+11 −2
Original line number Diff line number Diff line
@@ -103,6 +103,16 @@ static void msix_set_enable(struct pci_dev *dev, int enable) 
	}

}



/*

 * Essentially, this is ((1 << (1 << x)) - 1), but without the

 * undefinedness of a << 32.

 */

static inline __attribute_const__ u32 msi_mask(unsigned x)

{

	static const u32 mask[] = { 1, 2, 4, 0xf, 0xff, 0xffff, 0xffffffff };

	return mask[x];

}



static void msix_flush_writes(struct irq_desc *desc)

{

	struct msi_desc *entry;
@@ -407,8 +417,7 @@ static int msi_capability_init(struct pci_dev *dev) 


		/* All MSIs are unmasked by default, Mask them all */

		pci_read_config_dword(dev, base, &maskbits);

		temp = (1 << multi_msi_capable(control));

		temp = ((temp - 1) & ~temp);

		temp = msi_mask((control & PCI_MSI_FLAGS_QMASK) >> 1);

		maskbits |= temp;

		pci_write_config_dword(dev, base, maskbits);

		entry->msi_attrib.maskbits_mask = temp;

drivers/pci/pci-driver.c

+20 −1
Original line number Diff line number Diff line
@@ -370,6 +370,7 @@ static int pci_legacy_suspend(struct device *dev, pm_message_t state) 
	}



	pci_save_state(pci_dev);

	pci_dev->state_saved = true;

	/*

	 * This is for compatibility with existing code with legacy PM support.

	 */
@@ -419,6 +420,7 @@ static int pci_legacy_resume(struct device *dev) 
static void pci_pm_default_resume_noirq(struct pci_dev *pci_dev)

{

	pci_restore_standard_config(pci_dev);

	pci_dev->state_saved = false;

	pci_fixup_device(pci_fixup_resume_early, pci_dev);

}
@@ -555,6 +557,13 @@ static int pci_pm_resume(struct device *dev) 
	struct device_driver *drv = dev->driver;

	int error = 0;



	/*

	 * This is necessary for the suspend error path in which resume is

	 * called without restoring the standard config registers of the device.

	 */

	if (pci_dev->state_saved)

		pci_restore_standard_config(pci_dev);



	if (pci_has_legacy_pm_support(pci_dev))

		return pci_legacy_resume(dev);
@@ -660,7 +669,10 @@ static int pci_pm_poweroff(struct device *dev) 
	if (pci_has_legacy_pm_support(pci_dev))

		return pci_legacy_suspend(dev, PMSG_HIBERNATE);



	if (drv && drv->pm && drv->pm->poweroff) {

	if (!drv || !drv->pm)

		return 0;



	if (drv->pm->poweroff) {

		error = drv->pm->poweroff(dev);

		suspend_report_result(drv->pm->poweroff, error);

	}
@@ -710,6 +722,13 @@ static int pci_pm_restore(struct device *dev) 
	struct device_driver *drv = dev->driver;

	int error = 0;



	/*

	 * This is necessary for the hibernation error path in which restore is

	 * called without restoring the standard config registers of the device.

	 */

	if (pci_dev->state_saved)

		pci_restore_standard_config(pci_dev);



	if (pci_has_legacy_pm_support(pci_dev))

		return pci_legacy_resume(dev);

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