[PATCH 8/8] pci and yenta: pcibios_bus_to_resource
Dominik Brodowski
linux at dominikbrodowski.net
Mon Jul 11 18:21:38 EDT 2005
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 <linux at dominikbrodowski.net>
---
arch/alpha/kernel/pci.c | 16 ++++++++++++++++
arch/arm/kernel/bios32.c | 17 +++++++++++++++++
arch/ppc/kernel/pci.c | 15 +++++++++++++++
arch/ppc64/kernel/pci.c | 20 ++++++++++++++++++++
drivers/pcmcia/yenta_socket.c | 15 ++++++---------
include/asm-alpha/pci.h | 3 +++
include/asm-arm/pci.h | 4 ++++
include/asm-generic/pci.h | 8 ++++++++
include/asm-parisc/pci.h | 4 ++++
include/asm-ppc/pci.h | 4 ++++
include/asm-ppc64/pci.h | 4 ++++
11 files changed, 101 insertions(+), 9 deletions(-)
Index: 2.6.13-rc2-git3/include/asm-generic/pci.h
===================================================================
--- 2.6.13-rc2-git3.orig/include/asm-generic/pci.h
+++ 2.6.13-rc2-git3/include/asm-generic/pci.h
@@ -22,6 +22,14 @@ pcibios_resource_to_bus(struct pci_dev *
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
Index: 2.6.13-rc2-git3/drivers/pcmcia/yenta_socket.c
===================================================================
--- 2.6.13-rc2-git3.orig/drivers/pcmcia/yenta_socket.c
+++ 2.6.13-rc2-git3/drivers/pcmcia/yenta_socket.c
@@ -605,9 +605,8 @@ static int yenta_search_res(struct yenta
static int 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 int yenta_allocate_res(struct yen
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, ®ion);
root = pci_find_parent_resource(socket->dev, res);
if (root && (request_resource(root, res) == 0))
return 0;
Index: 2.6.13-rc2-git3/arch/arm/kernel/bios32.c
===================================================================
--- 2.6.13-rc2-git3.orig/arch/arm/kernel/bios32.c
+++ 2.6.13-rc2-git3/arch/arm/kernel/bios32.c
@@ -447,9 +447,26 @@ pcibios_resource_to_bus(struct pci_dev *
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_resources);
#endif
/*
Index: 2.6.13-rc2-git3/include/asm-alpha/pci.h
===================================================================
--- 2.6.13-rc2-git3.orig/include/asm-alpha/pci.h
+++ 2.6.13-rc2-git3/include/asm-alpha/pci.h
@@ -251,6 +251,9 @@ static inline int pci_get_legacy_ide_irq
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)
Index: 2.6.13-rc2-git3/include/asm-arm/pci.h
===================================================================
--- 2.6.13-rc2-git3.orig/include/asm-arm/pci.h
+++ 2.6.13-rc2-git3/include/asm-arm/pci.h
@@ -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)
{
}
Index: 2.6.13-rc2-git3/arch/alpha/kernel/pci.c
===================================================================
--- 2.6.13-rc2-git3.orig/arch/alpha/kernel/pci.c
+++ 2.6.13-rc2-git3/arch/alpha/kernel/pci.c
@@ -350,8 +350,24 @@ pcibios_resource_to_bus(struct pci_dev *
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
Index: 2.6.13-rc2-git3/include/asm-parisc/pci.h
===================================================================
--- 2.6.13-rc2-git3.orig/include/asm-parisc/pci.h
+++ 2.6.13-rc2-git3/include/asm-parisc/pci.h
@@ -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)
{
}
Index: 2.6.13-rc2-git3/include/asm-ppc/pci.h
===================================================================
--- 2.6.13-rc2-git3.orig/include/asm-ppc/pci.h
+++ 2.6.13-rc2-git3/include/asm-ppc/pci.h
@@ -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;
Index: 2.6.13-rc2-git3/arch/ppc/kernel/pci.c
===================================================================
--- 2.6.13-rc2-git3.orig/arch/ppc/kernel/pci.c
+++ 2.6.13-rc2-git3/arch/ppc/kernel/pci.c
@@ -160,6 +160,21 @@ void pcibios_resource_to_bus(struct pci_
}
EXPORT_SYMBOL(pcibios_resource_to_bus);
+void pcibios_resource_to_bus(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
Index: 2.6.13-rc2-git3/include/asm-ppc64/pci.h
===================================================================
--- 2.6.13-rc2-git3.orig/include/asm-ppc64/pci.h
+++ 2.6.13-rc2-git3/include/asm-ppc64/pci.h
@@ -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);
Index: 2.6.13-rc2-git3/arch/ppc64/kernel/pci.c
===================================================================
--- 2.6.13-rc2-git3.orig/arch/ppc64/kernel/pci.c
+++ 2.6.13-rc2-git3/arch/ppc64/kernel/pci.c
@@ -108,8 +108,28 @@ void pcibios_resource_to_bus(struct pci
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
/*
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