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| author | Yinghai Lu <yinghai@kernel.org> | 2013-12-09 22:54:40 -0800 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-12-21 10:06:10 -0700 |
| commit | fc2798502f860b18f3c7121e4dc659d3d9d28d74 (patch) | |
| tree | d15d6addb41d305e33c6f6d8e363b7272dc29a38 /arch/alpha | |
| parent | 0a5ef7b914be91dd257ae4f35223dd822dd3703a (diff) | |
| download | lwn-fc2798502f860b18f3c7121e4dc659d3d9d28d74.tar.gz lwn-fc2798502f860b18f3c7121e4dc659d3d9d28d74.zip | |
PCI: Convert pcibios_resource_to_bus() to take a pci_bus, not a pci_dev
These interfaces:
pcibios_resource_to_bus(struct pci_dev *dev, *bus_region, *resource)
pcibios_bus_to_resource(struct pci_dev *dev, *resource, *bus_region)
took a pci_dev, but they really depend only on the pci_bus. And we want to
use them in resource allocation paths where we have the bus but not a
device, so this patch converts them to take the pci_bus instead of the
pci_dev:
pcibios_resource_to_bus(struct pci_bus *bus, *bus_region, *resource)
pcibios_bus_to_resource(struct pci_bus *bus, *resource, *bus_region)
In fact, with standard PCI-PCI bridges, they only depend on the host
bridge, because that's the only place address translation occurs, but
we aren't going that far yet.
[bhelgaas: changelog]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'arch/alpha')
| -rw-r--r-- | arch/alpha/kernel/pci-sysfs.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c index 2b183b0d3207..99e8d4796c96 100644 --- a/arch/alpha/kernel/pci-sysfs.c +++ b/arch/alpha/kernel/pci-sysfs.c @@ -83,7 +83,7 @@ static int pci_mmap_resource(struct kobject *kobj, if (iomem_is_exclusive(res->start)) return -EINVAL; - pcibios_resource_to_bus(pdev, &bar, res); + pcibios_resource_to_bus(pdev->bus, &bar, res); vma->vm_pgoff += bar.start >> (PAGE_SHIFT - (sparse ? 5 : 0)); mmap_type = res->flags & IORESOURCE_MEM ? pci_mmap_mem : pci_mmap_io; @@ -139,7 +139,7 @@ static int sparse_mem_mmap_fits(struct pci_dev *pdev, int num) long dense_offset; unsigned long sparse_size; - pcibios_resource_to_bus(pdev, &bar, &pdev->resource[num]); + pcibios_resource_to_bus(pdev->bus, &bar, &pdev->resource[num]); /* All core logic chips have 4G sparse address space, except CIA which has 16G (see xxx_SPARSE_MEM and xxx_DENSE_MEM |