From: Dominik Brodowski Date: Fri, 5 Aug 2005 01:06:21 +0000 (-0700) Subject: [PATCH] pci and yenta: pcibios_bus_to_resource X-Git-Tag: v2.6.13-rc6~43 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=43c34735524d5b1c9b9e5d63b49dd4c1b394bde4;p=~shefty%2Frdma-dev.git [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 --- 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 /* diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index 91e7457d5b0..62fd705203f 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -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, ®ion); root = pci_find_parent_resource(socket->dev, res); if (root && (request_resource(root, res) == 0)) return; diff --git a/include/asm-alpha/pci.h b/include/asm-alpha/pci.h index 28957697e59..f681e675b82 100644 --- a/include/asm-alpha/pci.h +++ b/include/asm-alpha/pci.h @@ -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) diff --git a/include/asm-arm/pci.h b/include/asm-arm/pci.h index b28f1c95dd6..38ea5899a58 100644 --- a/include/asm-arm/pci.h +++ b/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) { } diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h index 9d4cc47bde3..ee1d8b5d816 100644 --- a/include/asm-generic/pci.h +++ b/include/asm-generic/pci.h @@ -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 diff --git a/include/asm-parisc/pci.h b/include/asm-parisc/pci.h index ee741c15017..98d79a3d54f 100644 --- a/include/asm-parisc/pci.h +++ b/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) { } diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h index a13d55870e6..a811e440c97 100644 --- a/include/asm-ppc/pci.h +++ b/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; diff --git a/include/asm-ppc64/pci.h b/include/asm-ppc64/pci.h index faa77222307..4d057452f59 100644 --- a/include/asm-ppc64/pci.h +++ b/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);