Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 (9b6a3df3) · Commits · EulixOS / Software / Kernel

drivers/pci/iov.c

+23 −0

Original line number	Diff line number	Diff line
		@@ -597,6 +597,29 @@ int pci_iov_resource_bar(struct pci_dev *dev, int resno,
		4 * (resno - PCI_IOV_RESOURCES);
		}

		/**
		* pci_sriov_resource_alignment - get resource alignment for VF BAR
		* @dev: the PCI device
		* @resno: the resource number
		*
		* Returns the alignment of the VF BAR found in the SR-IOV capability.
		* This is not the same as the resource size which is defined as
		* the VF BAR size multiplied by the number of VFs. The alignment
		* is just the VF BAR size.
		*/
		int pci_sriov_resource_alignment(struct pci_dev *dev, int resno)
		{
		struct resource tmp;
		enum pci_bar_type type;
		int reg = pci_iov_resource_bar(dev, resno, &type);

		if (!reg)
		return 0;

		__pci_read_base(dev, type, &tmp, reg);
		return resource_alignment(&tmp);
		}

		/**
		* pci_restore_iov_state - restore the state of the IOV capability
		* @dev: the PCI device

+13 −0

Original line number	Diff line number	Diff line
		@@ -243,6 +243,7 @@ extern int pci_iov_init(struct pci_dev *dev);
		extern void pci_iov_release(struct pci_dev *dev);
		extern int pci_iov_resource_bar(struct pci_dev *dev, int resno,
		enum pci_bar_type *type);
		extern int pci_sriov_resource_alignment(struct pci_dev *dev, int resno);
		extern void pci_restore_iov_state(struct pci_dev *dev);
		extern int pci_iov_bus_range(struct pci_bus *bus);

		@@ -298,4 +299,16 @@ static inline int pci_ats_enabled(struct pci_dev *dev)
		}
		#endif /* CONFIG_PCI_IOV */

		static inline int pci_resource_alignment(struct pci_dev *dev,
		struct resource *res)
		{
		#ifdef CONFIG_PCI_IOV
		int resno = res - dev->resource;

		if (resno >= PCI_IOV_RESOURCES && resno <= PCI_IOV_RESOURCE_END)
		return pci_sriov_resource_alignment(dev, resno);
		#endif
		return resource_alignment(res);
		}

		#endif /* DRIVERS_PCI_H */

+2 −2

Original line number	Diff line number	Diff line
		@@ -25,7 +25,7 @@
		#include <linux/ioport.h>
		#include <linux/cache.h>
		#include <linux/slab.h>

		#include "pci.h"

		static void pbus_assign_resources_sorted(const struct pci_bus *bus)
		{
		@@ -384,7 +384,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask, unsigned long
		continue;
		r_size = resource_size(r);
		/* For bridges size != alignment */
		align = resource_alignment(r);
		align = pci_resource_alignment(dev, r);
		order = __ffs(align) - 20;
		if (order > 11) {
		dev_warn(&dev->dev, "BAR %d bad alignment %llx: "

+4 −4

Original line number	Diff line number	Diff line
		@@ -144,7 +144,7 @@ static int __pci_assign_resource(struct pci_bus bus, struct pci_dev dev,

		size = resource_size(res);
		min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM;
		align = resource_alignment(res);
		align = pci_resource_alignment(dev, res);

		/* First, try exact prefetching match.. */
		ret = pci_bus_alloc_resource(bus, res, size, align, min,
		@@ -178,7 +178,7 @@ int pci_assign_resource(struct pci_dev *dev, int resno)
		struct pci_bus *bus;
		int ret;

		align = resource_alignment(res);
		align = pci_resource_alignment(dev, res);
		if (!align) {
		dev_info(&dev->dev, "BAR %d: can't allocate resource (bogus "
		"alignment) %pR flags %#lx\n",
		@@ -259,7 +259,7 @@ void pdev_sort_resources(struct pci_dev dev, struct resource_list head)
		if (!(r->flags) \|\| r->parent)
		continue;

		r_align = resource_alignment(r);
		r_align = pci_resource_alignment(dev, r);
		if (!r_align) {
		dev_warn(&dev->dev, "BAR %d: bogus alignment "
		"%pR flags %#lx\n",
		@@ -271,7 +271,7 @@ void pdev_sort_resources(struct pci_dev dev, struct resource_list head)
		struct resource_list *ln = list->next;

		if (ln)
		align = resource_alignment(ln->res);
		align = pci_resource_alignment(ln->dev, ln->res);

		if (r_align > align) {
		tmp = kmalloc(sizeof(*tmp), GFP_KERNEL);