From 43c34735524d5b1c9b9e5d63b49dd4c1b394bde4 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Thu, 4 Aug 2005 18:06:21 -0700 Subject: [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: Dominik Brodowski Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman Signed-off-by: Linus Torvalds --- arch/alpha/kernel/pci.c | 16 ++++++++++++++++ arch/arm/kernel/bios32.c | 17 +++++++++++++++++ arch/ppc/kernel/pci.c | 15 +++++++++++++++ arch/ppc64/kernel/pci.c | 20 ++++++++++++++++++++ 4 files changed, 68 insertions(+) (limited to 'arch') diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index 1f36bbd0ed5..2a8b364c822 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -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 diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c index ad26e98f1e6..c4923fac8df 100644 --- a/arch/arm/kernel/bios32.c +++ b/arch/arm/kernel/bios32.c @@ -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 /* diff --git a/arch/ppc/kernel/pci.c b/arch/ppc/kernel/pci.c index 70cfb6ffd87..7b3586a3bf3 100644 --- a/arch/ppc/kernel/pci.c +++ b/arch/ppc/kernel/pci.c @@ -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 diff --git a/arch/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c index ae6f579d3fa..d0d55c7908e 100644 --- a/arch/ppc64/kernel/pci.c +++ b/arch/ppc64/kernel/pci.c @@ -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 /* -- cgit v1.2.3