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[PATCH] pci and yenta: pcibios_bus_to_resource

Browse source 
In yenta_socket, we default to using the resource setting of the CardBus
bridge.  However, this is a PCI-bus-centric view of resources and thus needs
to be converted to generic resources first.  Therefore, add a call to
pcibios_bus_to_resource() call in between.  This function is a mere wrapper on
x86 and friends, however on some others it already exists, is added in this
patch (alpha, arm, ppc, ppc64) or still needs to be provided (parisc -- where
is its pcibios_resource_to_bus() ?).

Signed-off-by: Dominik Brodowski <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Dominik Brodowski 2005-08-04 18:06:21 -07:00 • committed by Linus Torvalds
commit 43c3473552
11 changed files with 101 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

16
arch/alpha/kernel/pci.c
View file

@ -350,8 +350,24 @@ pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
region->end = res->end - offset;
}
void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region)
{
struct pci_controller *hose = (struct pci_controller *)dev->sysdata;
unsigned long offset = 0;
if (res->flags & IORESOURCE_IO)
offset = hose->io_space->start;
else if (res->flags & IORESOURCE_MEM)
offset = hose->mem_space->start;
res->start = region->start + offset;
res->end = region->end + offset;
}
#ifdef CONFIG_HOTPLUG
EXPORT_SYMBOL(pcibios_resource_to_bus);
EXPORT_SYMBOL(pcibios_bus_to_resource);
#endif
int

17
arch/arm/kernel/bios32.c
View file

@ -447,9 +447,26 @@ pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
region->end = res->end - offset;
}
void __devinit
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region)
{
struct pci_sys_data *root = dev->sysdata;
unsigned long offset = 0;
if (res->flags & IORESOURCE_IO)
offset = root->io_offset;
if (res->flags & IORESOURCE_MEM)
offset = root->mem_offset;
res->start = region->start + offset;
res->end = region->end + offset;
}
#ifdef CONFIG_HOTPLUG
EXPORT_SYMBOL(pcibios_fixup_bus);
EXPORT_SYMBOL(pcibios_resource_to_bus);
EXPORT_SYMBOL(pcibios_bus_to_resource);
#endif
/*

15
arch/ppc/kernel/pci.c
View file

@ -160,6 +160,21 @@ void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
}
EXPORT_SYMBOL(pcibios_resource_to_bus);
void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region)
{
unsigned long offset = 0;
struct pci_controller *hose = dev->sysdata;
if (hose && res->flags & IORESOURCE_IO)
offset = (unsigned long)hose->io_base_virt - isa_io_base;
else if (hose && res->flags & IORESOURCE_MEM)
offset = hose->pci_mem_offset;
res->start = region->start + offset;
res->end = region->end + offset;
}
EXPORT_SYMBOL(pcibios_bus_to_resource);
/*
* We need to avoid collisions with `mirrored' VGA ports
* and other strange ISA hardware, so we always want the

20
arch/ppc64/kernel/pci.c
View file

@ -108,8 +108,28 @@ void pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region
region->end = res->end - offset;
}
void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region)
{
unsigned long offset = 0;
struct pci_controller *hose = pci_bus_to_host(dev->bus);
if (!hose)
return;
if (res->flags & IORESOURCE_IO)
offset = (unsigned long)hose->io_base_virt - pci_io_base;
if (res->flags & IORESOURCE_MEM)
offset = hose->pci_mem_offset;
res->start = region->start + offset;
res->end = region->end + offset;
}
#ifdef CONFIG_HOTPLUG
EXPORT_SYMBOL(pcibios_resource_to_bus);
EXPORT_SYMBOL(pcibios_bus_to_resource);
#endif
/*