Commit 43c34735 authored by Dominik Brodowski's avatar Dominik Brodowski Committed by Linus Torvalds

[PATCH] pci and yenta: pcibios_bus_to_resource

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: default avatarDominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent fec59a71
......@@ -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
......
......@@ -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
/*
......
......@@ -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
......
......@@ -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
/*
......
......@@ -605,9 +605,8 @@ static int yenta_search_res(struct yenta_socket *socket, struct resource *res,
static void yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned type, int addr_start, int addr_end)
{
struct pci_bus *bus;
struct resource *root, *res;
u32 start, end;
struct pci_bus_region region;
unsigned mask;
res = socket->dev->resource + PCI_BRIDGE_RESOURCES + nr;
......@@ -620,15 +619,13 @@ static void yenta_allocate_res(struct yenta_socket *socket, int nr, unsigned typ
if (type & IORESOURCE_IO)
mask = ~3;
bus = socket->dev->subordinate;
res->name = bus->name;
res->name = socket->dev->subordinate->name;
res->flags = type;
start = config_readl(socket, addr_start) & mask;
end = config_readl(socket, addr_end) | ~mask;
if (start && end > start && !override_bios) {
res->start = start;
res->end = end;
region.start = config_readl(socket, addr_start) & mask;
region.end = config_readl(socket, addr_end) | ~mask;
if (region.start && region.end > region.start && !override_bios) {
pcibios_bus_to_resource(socket->dev, res, &region);
root = pci_find_parent_resource(socket->dev, res);
if (root && (request_resource(root, res) == 0))
return;
......
......@@ -251,6 +251,9 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
extern void pcibios_resource_to_bus(struct pci_dev *, struct pci_bus_region *,
struct resource *);
extern void pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region);
#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
static inline int pci_proc_domain(struct pci_bus *bus)
......
......@@ -60,6 +60,10 @@ extern void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res);
extern void
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region);
static inline void pcibios_add_platform_entries(struct pci_dev *dev)
{
}
......
......@@ -22,6 +22,14 @@ pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
region->end = res->end;
}
static inline void
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region)
{
res->start = region->start;
res->end = region->end;
}
#define pcibios_scan_all_fns(a, b) 0
#ifndef HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ
......
......@@ -253,6 +253,10 @@ extern void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res);
extern void
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region);
static inline void pcibios_add_platform_entries(struct pci_dev *dev)
{
}
......
......@@ -105,6 +105,10 @@ extern void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res);
extern void
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region);
extern void pcibios_add_platform_entries(struct pci_dev *dev);
struct file;
......
......@@ -134,6 +134,10 @@ extern void
pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
struct resource *res);
extern void
pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
struct pci_bus_region *region);
extern int
unmap_bus_range(struct pci_bus *bus);
......
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