diff options
48 files changed, 124 insertions, 369 deletions
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index 3d74801a4015..56a4df952fb0 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -70,10 +70,6 @@ config GENERIC_ISA_DMA bool default y -config GENERIC_IOMAP - bool - default n - source "init/Kconfig" source "kernel/Kconfig.freezer" @@ -319,6 +315,7 @@ config ISA_DMA_API config PCI bool depends on !ALPHA_JENSEN + select GENERIC_PCI_IOMAP default y help Find out whether you have a PCI motherboard. PCI is the name of a diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c index 246100ef07c2..04eea4894ef3 100644 --- a/arch/alpha/kernel/pci-noop.c +++ b/arch/alpha/kernel/pci-noop.c @@ -185,15 +185,3 @@ struct dma_map_ops alpha_noop_ops = { struct dma_map_ops *dma_ops = &alpha_noop_ops; EXPORT_SYMBOL(dma_ops); - -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - return NULL; -} - -void pci_iounmap(struct pci_dev *dev, void __iomem * addr) -{ -} - -EXPORT_SYMBOL(pci_iomap); -EXPORT_SYMBOL(pci_iounmap); diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c index c9ab94ee1ca8..f3cae275d3f5 100644 --- a/arch/alpha/kernel/pci.c +++ b/arch/alpha/kernel/pci.c @@ -508,30 +508,7 @@ sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn) return -EOPNOTSUPP; } -/* Create an __iomem token from a PCI BAR. Copied from lib/iomap.c with - no changes, since we don't want the other things in that object file. */ - -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - if (maxlen && len > maxlen) - len = maxlen; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) { - /* Not checking IORESOURCE_CACHEABLE because alpha does - not distinguish between ioremap and ioremap_nocache. */ - return ioremap(start, len); - } - return NULL; -} - -/* Destroy that token. Not copied from lib/iomap.c. */ +/* Destroy an __iomem token. Not copied from lib/iomap.c. */ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { @@ -539,7 +516,6 @@ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) iounmap(addr); } -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); /* FIXME: Some boxes have multiple ISA bridges! */ diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 98a6459cd398..24626b0419ee 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -31,6 +31,7 @@ config ARM select HAVE_SPARSE_IRQ select GENERIC_IRQ_SHOW select CPU_PM if (SUSPEND || CPU_IDLE) + select GENERIC_PCI_IOMAP help The ARM series is a line of low-power-consumption RISC chip designs licensed by ARM Ltd and targeted at embedded applications and diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 065d100fa63e..9275828feb3d 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -27,6 +27,7 @@ #include <asm/byteorder.h> #include <asm/memory.h> #include <asm/system.h> +#include <asm-generic/pci_iomap.h> /* * ISA I/O bus memory addresses are 1:1 with the physical address. @@ -306,7 +307,6 @@ extern void ioport_unmap(void __iomem *addr); struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen); extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr); /* diff --git a/arch/arm/mm/iomap.c b/arch/arm/mm/iomap.c index 430df1a5978d..e62956e12030 100644 --- a/arch/arm/mm/iomap.c +++ b/arch/arm/mm/iomap.c @@ -35,27 +35,6 @@ EXPORT_SYMBOL(pcibios_min_mem); unsigned int pci_flags = PCI_REASSIGN_ALL_RSRC; EXPORT_SYMBOL(pci_flags); -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - if (maxlen && len > maxlen) - len = maxlen; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) { - if (flags & IORESOURCE_CACHEABLE) - return ioremap(start, len); - return ioremap_nocache(start, len); - } - return NULL; -} -EXPORT_SYMBOL(pci_iomap); - void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { if ((unsigned long)addr >= VMALLOC_START && diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig index 408b055c585f..b3abfb08aa5c 100644 --- a/arch/cris/Kconfig +++ b/arch/cris/Kconfig @@ -19,10 +19,6 @@ config GENERIC_CMOS_UPDATE config ARCH_USES_GETTIMEOFFSET def_bool n -config GENERIC_IOMAP - bool - default y - config ARCH_HAS_ILOG2_U32 bool default n @@ -52,6 +48,7 @@ config CRIS select HAVE_IDE select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW + select GENERIC_IOMAP config HZ int diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index c5e69abb4889..bbbf7927f238 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -317,6 +317,7 @@ config PCI bool "Use PCI" depends on MB93090_MB00 default y + select GENERIC_PCI_IOMAP help Some FR-V systems (such as the MB93090-MB00 VDK) have PCI onboard. If you have one of these boards and you wish to use the PCI diff --git a/arch/frv/include/asm/io.h b/arch/frv/include/asm/io.h index ca7475e73b5e..8cb50a2fbcb2 100644 --- a/arch/frv/include/asm/io.h +++ b/arch/frv/include/asm/io.h @@ -21,6 +21,7 @@ #include <asm/virtconvert.h> #include <asm/string.h> #include <asm/mb-regs.h> +#include <asm-generic/pci_iomap.h> #include <linux/delay.h> /* @@ -370,7 +371,6 @@ static inline void iowrite32_rep(void __iomem *p, const void *src, unsigned long /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) { } diff --git a/arch/frv/mb93090-mb00/Makefile b/arch/frv/mb93090-mb00/Makefile index b73b542f8f48..21f1df1b378a 100644 --- a/arch/frv/mb93090-mb00/Makefile +++ b/arch/frv/mb93090-mb00/Makefile @@ -3,7 +3,7 @@ # ifeq "$(CONFIG_PCI)" "y" -obj-y := pci-frv.o pci-irq.o pci-vdk.o pci-iomap.o +obj-y := pci-frv.o pci-irq.o pci-vdk.o ifeq "$(CONFIG_MMU)" "y" obj-y += pci-dma.o diff --git a/arch/frv/mb93090-mb00/pci-iomap.c b/arch/frv/mb93090-mb00/pci-iomap.c deleted file mode 100644 index 35f6df28351e..000000000000 --- a/arch/frv/mb93090-mb00/pci-iomap.c +++ /dev/null @@ -1,29 +0,0 @@ -/* pci-iomap.c: description - * - * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <linux/pci.h> -#include <linux/module.h> - -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - - if ((flags & IORESOURCE_IO) || (flags & IORESOURCE_MEM)) - return (void __iomem *) start; - - return NULL; -} - -EXPORT_SYMBOL(pci_iomap); diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig index 02513c2dd5ec..9059e3905887 100644 --- a/arch/hexagon/Kconfig +++ b/arch/hexagon/Kconfig @@ -26,6 +26,7 @@ config HEXAGON select HAVE_ARCH_KGDB select HAVE_ARCH_TRACEHOOK select NO_IOPORT + select GENERIC_IOMAP # mostly generic routines, with some accelerated ones ---help--- Qualcomm Hexagon is a processor architecture designed for high @@ -73,9 +74,6 @@ config GENERIC_CSUM config GENERIC_IRQ_PROBE def_bool y -config GENERIC_IOMAP - def_bool y - #config ZONE_DMA # bool # default y diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 3b7a7c483785..bd7266903bf8 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -32,6 +32,7 @@ config IA64 select GENERIC_IRQ_SHOW select ARCH_WANT_OPTIONAL_GPIOLIB select ARCH_HAVE_NMI_SAFE_CMPXCHG + select GENERIC_IOMAP default y help The Itanium Processor Family is Intel's 64-bit successor to @@ -105,10 +106,6 @@ config EFI bool default y -config GENERIC_IOMAP - bool - default y - config ARCH_CLOCKSOURCE_DATA def_bool y diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig index 81fdaa72c540..99c363617f27 100644 --- a/arch/m68k/Kconfig +++ b/arch/m68k/Kconfig @@ -37,9 +37,6 @@ config GENERIC_CALIBRATE_DELAY bool default y -config GENERIC_IOMAP - def_bool MMU - config GENERIC_CSUM bool @@ -81,6 +78,7 @@ source "kernel/Kconfig.freezer" config MMU bool "MMU-based Paged Memory Management Support" default y + select GENERIC_IOMAP help Select if you want MMU-based virtualised addressing space support by paged memory management. If unsure, say 'Y'. diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index e446bab2427b..f0eead74fff6 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -17,6 +17,7 @@ config MICROBLAZE select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW + select GENERIC_PCI_IOMAP config SWAP def_bool n diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c index 57acda852f5a..b07abbac0319 100644 --- a/arch/microblaze/pci/iomap.c +++ b/arch/microblaze/pci/iomap.c @@ -10,25 +10,6 @@ #include <asm/io.h> #include <asm/pci-bridge.h> -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len) - return NULL; - if (max && len > max) - len = max; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) - return ioremap(start, len); - /* What? */ - return NULL; -} -EXPORT_SYMBOL(pci_iomap); - void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { if (isa_vaddr_is_ioport(addr)) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index c529cfe52c53..29d92187ff30 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2317,6 +2317,7 @@ config PCI bool "Support for PCI controller" depends on HW_HAS_PCI select PCI_DOMAINS + select GENERIC_PCI_IOMAP help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/mips/lib/iomap-pci.c b/arch/mips/lib/iomap-pci.c index 2ab899c4b4ce..2635b1a96333 100644 --- a/arch/mips/lib/iomap-pci.c +++ b/arch/mips/lib/iomap-pci.c @@ -40,32 +40,6 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev, return (void __iomem *) (ctrl->io_map_base + port); } -/* - * Create a virtual mapping cookie for a PCI BAR (memory or IO) - */ -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - if (maxlen && len > maxlen) - len = maxlen; - if (flags & IORESOURCE_IO) - return ioport_map_pci(dev, start, len); - if (flags & IORESOURCE_MEM) { - if (flags & IORESOURCE_CACHEABLE) - return ioremap(start, len); - return ioremap_nocache(start, len); - } - /* What? */ - return NULL; -} - -EXPORT_SYMBOL(pci_iomap); - void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { iounmap(addr); diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig index 438db84a1f7c..8f1c40d5817e 100644 --- a/arch/mn10300/Kconfig +++ b/arch/mn10300/Kconfig @@ -252,6 +252,7 @@ config PCI bool "Use PCI" depends on MN10300_UNIT_ASB2305 default y + select GENERIC_PCI_IOMAP help Some systems (such as the ASB2305) have PCI onboard. If you have one of these boards and you wish to use the PCI facilities, say Y here. diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h index 787255da744e..139df8c53de8 100644 --- a/arch/mn10300/include/asm/io.h +++ b/arch/mn10300/include/asm/io.h @@ -229,7 +229,6 @@ static inline void outsl(unsigned long addr, const void *buffer, int count) /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) { } @@ -251,15 +250,15 @@ static inline void *phys_to_virt(unsigned long address) /* * Change "struct page" to physical address. */ -static inline void *__ioremap(unsigned long offset, unsigned long size, - unsigned long flags) +static inline void __iomem *__ioremap(unsigned long offset, unsigned long size, + unsigned long flags) { - return (void *) offset; + return (void __iomem *) offset; } -static inline void *ioremap(unsigned long offset, unsigned long size) +static inline void __iomem *ioremap(unsigned long offset, unsigned long size) { - return (void *) offset; + return (void __iomem *) offset; } /* @@ -267,14 +266,14 @@ static inline void *ioremap(unsigned long offset, unsigned long size) * area. it's useful if some control registers are in such an area and write * combining or read caching is not desirable: */ -static inline void *ioremap_nocache(unsigned long offset, unsigned long size) +static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long size) { - return (void *) (offset | 0x20000000); + return (void __iomem *) (offset | 0x20000000); } #define ioremap_wc ioremap_nocache -static inline void iounmap(void *addr) +static inline void iounmap(void __iomem *addr) { } diff --git a/arch/mn10300/unit-asb2305/Makefile b/arch/mn10300/unit-asb2305/Makefile index 0551022225b3..cbc5abaa939a 100644 --- a/arch/mn10300/unit-asb2305/Makefile +++ b/arch/mn10300/unit-asb2305/Makefile @@ -5,4 +5,4 @@ ############################################################################### obj-y := unit-init.o leds.o -obj-$(CONFIG_PCI) += pci.o pci-asb2305.o pci-irq.o pci-iomap.o +obj-$(CONFIG_PCI) += pci.o pci-asb2305.o pci-irq.o diff --git a/arch/mn10300/unit-asb2305/pci-iomap.c b/arch/mn10300/unit-asb2305/pci-iomap.c deleted file mode 100644 index c1a8d8f941fd..000000000000 --- a/arch/mn10300/unit-asb2305/pci-iomap.c +++ /dev/null @@ -1,31 +0,0 @@ -/* ASB2305 PCI I/O mapping handler - * - * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. - * Written by David Howells (dhowells@redhat.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public Licence - * as published by the Free Software Foundation; either version - * 2 of the Licence, or (at your option) any later version. - */ -#include <linux/pci.h> -#include <linux/module.h> - -/* - * Create a virtual mapping cookie for a PCI BAR (memory or IO) - */ -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - - if ((flags & IORESOURCE_IO) || (flags & IORESOURCE_MEM)) - return (void __iomem *) start; - - return NULL; -} -EXPORT_SYMBOL(pci_iomap); diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig index e518a5a4cf4c..081a54f1a93d 100644 --- a/arch/openrisc/Kconfig +++ b/arch/openrisc/Kconfig @@ -38,9 +38,6 @@ config RWSEM_XCHGADD_ALGORITHM config GENERIC_HWEIGHT def_bool y -config GENERIC_IOMAP - def_bool y - config NO_IOPORT def_bool y diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index fdfd8be29e95..242a1b7ac759 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -14,6 +14,7 @@ config PARISC select GENERIC_ATOMIC64 if !64BIT select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_PROBE + select GENERIC_PCI_IOMAP select IRQ_PER_CPU select ARCH_HAVE_NMI_SAFE_CMPXCHG diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c index 8f470c93b16d..fb8e10a4fb39 100644 --- a/arch/parisc/lib/iomap.c +++ b/arch/parisc/lib/iomap.c @@ -436,28 +436,6 @@ void ioport_unmap(void __iomem *addr) } } -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - if (maxlen && len > maxlen) - len = maxlen; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) { - if (flags & IORESOURCE_CACHEABLE) - return ioremap(start, len); - return ioremap_nocache(start, len); - } - /* What? */ - return NULL; -} - void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { if (!INDIRECT_ADDR(addr)) { @@ -483,5 +461,4 @@ EXPORT_SYMBOL(iowrite16_rep); EXPORT_SYMBOL(iowrite32_rep); EXPORT_SYMBOL(ioport_map); EXPORT_SYMBOL(ioport_unmap); -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 692ac7588e20..1919634a9b32 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -718,6 +718,7 @@ config PCI default PCI_PERMEDIA if !4xx && !CPM2 && !8xx default PCI_QSPAN if !4xx && !CPM2 && 8xx select ARCH_SUPPORTS_MSI + select GENERIC_PCI_IOMAP help Find out whether your system includes a PCI bus. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c index 262791807397..97a3715ac8bd 100644 --- a/arch/powerpc/kernel/iomap.c +++ b/arch/powerpc/kernel/iomap.c @@ -119,24 +119,6 @@ EXPORT_SYMBOL(ioport_map); EXPORT_SYMBOL(ioport_unmap); #ifdef CONFIG_PCI -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len) - return NULL; - if (max && len > max) - len = max; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) - return ioremap(start, len); - /* What? */ - return NULL; -} - void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { if (isa_vaddr_is_ioport(addr)) @@ -146,6 +128,5 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr) iounmap(addr); } -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); #endif /* CONFIG_PCI */ diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig index 31e1adeaa92a..0cfb46d54b8c 100644 --- a/arch/powerpc/platforms/Kconfig +++ b/arch/powerpc/platforms/Kconfig @@ -175,9 +175,6 @@ config PPC_INDIRECT_MMIO config PPC_IO_WORKAROUNDS bool -config GENERIC_IOMAP - bool - source "drivers/cpufreq/Kconfig" menu "CPU Frequency drivers" diff --git a/arch/score/Kconfig b/arch/score/Kconfig index 8b0c9464aa9d..3df65d39abc1 100644 --- a/arch/score/Kconfig +++ b/arch/score/Kconfig @@ -4,6 +4,7 @@ config SCORE def_bool y select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW + select GENERIC_IOMAP select HAVE_MEMBLOCK select HAVE_MEMBLOCK_NODE_MAP select ARCH_DISCARD_MEMBLOCK @@ -36,9 +37,6 @@ endmenu config CPU_SCORE7 bool -config GENERIC_IOMAP - def_bool y - config NO_DMA bool default y diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig index 47a2f1c2cb0d..3c8db65c89e5 100644 --- a/arch/sh/Kconfig +++ b/arch/sh/Kconfig @@ -85,9 +85,6 @@ config GENERIC_GPIO config GENERIC_CALIBRATE_DELAY bool -config GENERIC_IOMAP - bool - config GENERIC_CLOCKEVENTS def_bool y @@ -861,6 +858,7 @@ config PCI bool "PCI support" depends on SYS_SUPPORTS_PCI select PCI_DOMAINS + select GENERIC_PCI_IOMAP help Find out whether you have a PCI motherboard. PCI is the name of a bus system, i.e. the way the CPU talks to the other stuff inside diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c index c2691afe8f79..11aaf2fdec84 100644 --- a/arch/sh/drivers/pci/pci.c +++ b/arch/sh/drivers/pci/pci.c @@ -393,29 +393,6 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev, return (void __iomem *)(chan->io_map_base + port); } -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (unlikely(!len || !start)) - return NULL; - if (maxlen && len > maxlen) - len = maxlen; - - if (flags & IORESOURCE_IO) - return ioport_map_pci(dev, start, len); - if (flags & IORESOURCE_MEM) { - if (flags & IORESOURCE_CACHEABLE) - return ioremap(start, len); - return ioremap_nocache(start, len); - } - - return NULL; -} -EXPORT_SYMBOL(pci_iomap); - void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { iounmap(addr); diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 868ea08dff0b..96657992a72e 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -28,6 +28,7 @@ config SPARC select HAVE_GENERIC_HARDIRQS select GENERIC_IRQ_SHOW select USE_GENERIC_SMP_HELPERS if SMP + select GENERIC_PCI_IOMAP config SPARC32 def_bool !64BIT diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h index c2ced21c9dc1..2006e5d359df 100644 --- a/arch/sparc/include/asm/io_32.h +++ b/arch/sparc/include/asm/io_32.h @@ -7,6 +7,7 @@ #include <asm/page.h> /* IO address mapping routines need this */ #include <asm/system.h> +#include <asm-generic/pci_iomap.h> #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) @@ -324,7 +325,6 @@ extern void ioport_unmap(void __iomem *); /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); extern void pci_iounmap(struct pci_dev *dev, void __iomem *); /* diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h index 9c8965415f0a..9481e5a6fa90 100644 --- a/arch/sparc/include/asm/io_64.h +++ b/arch/sparc/include/asm/io_64.h @@ -8,6 +8,7 @@ #include <asm/page.h> /* IO address mapping routines need this */ #include <asm/system.h> #include <asm/asi.h> +#include <asm-generic/pci_iomap.h> /* PC crapola... */ #define __SLOW_DOWN_IO do { } while (0) @@ -514,7 +515,6 @@ extern void ioport_unmap(void __iomem *); /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); extern void pci_iounmap(struct pci_dev *dev, void __iomem *); static inline int sbus_can_dma_64bit(void) diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c index 9ef37e13a920..c4d42a50ebc0 100644 --- a/arch/sparc/lib/iomap.c +++ b/arch/sparc/lib/iomap.c @@ -18,31 +18,8 @@ void ioport_unmap(void __iomem *addr) EXPORT_SYMBOL(ioport_map); EXPORT_SYMBOL(ioport_unmap); -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - if (maxlen && len > maxlen) - len = maxlen; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) { - if (flags & IORESOURCE_CACHEABLE) - return ioremap(start, len); - return ioremap_nocache(start, len); - } - /* What? */ - return NULL; -} - void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { /* nothing to do */ } -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig index 70a0de46cd1b..11270ca22c0a 100644 --- a/arch/tile/Kconfig +++ b/arch/tile/Kconfig @@ -321,6 +321,7 @@ config PCI bool "PCI support" default y select PCI_DOMAINS + select GENERIC_PCI_IOMAP ---help--- Enable PCI root complex support, so PCIe endpoint devices can be attached to the Tile chip. Many, but not all, PCI devices diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h index c9ea1652af03..d2152deb1f3c 100644 --- a/arch/tile/include/asm/io.h +++ b/arch/tile/include/asm/io.h @@ -204,7 +204,8 @@ static inline long ioport_panic(void) static inline void __iomem *ioport_map(unsigned long port, unsigned int len) { - return (void __iomem *) ioport_panic(); + pr_info("ioport_map: mapping IO resources is unsupported on tile.\n"); + return NULL; } static inline void ioport_unmap(void __iomem *addr) diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h index 7f03cefed1b9..1d25fea42e54 100644 --- a/arch/tile/include/asm/pci.h +++ b/arch/tile/include/asm/pci.h @@ -16,6 +16,7 @@ #define _ASM_TILE_PCI_H #include <linux/pci.h> +#include <asm-generic/pci_iomap.h> /* * Structure of a PCI controller (host bridge) @@ -49,7 +50,6 @@ struct pci_controller { int __devinit tile_pci_init(void); int __devinit pcibios_init(void); -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {} void __devinit pcibios_fixup_bus(struct pci_bus *bus); diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c index 9d610d3fb11e..25567934a21e 100644 --- a/arch/tile/kernel/pci.c +++ b/arch/tile/kernel/pci.c @@ -466,27 +466,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask) return 0; } -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) -{ - unsigned long start = pci_resource_start(dev, bar); - unsigned long len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len) - return NULL; - if (max && len > max) - len = max; - - if (!(flags & IORESOURCE_MEM)) { - pr_info("PCI: Trying to map invalid resource %#lx\n", flags); - start = 0; - } - - return (void __iomem *)start; -} -EXPORT_SYMBOL(pci_iomap); - - /**************************************************************** * * Tile PCI config space read/write routines diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig index 942ed6174f1d..eeb8054c7cd8 100644 --- a/arch/unicore32/Kconfig +++ b/arch/unicore32/Kconfig @@ -12,6 +12,7 @@ config UNICORE32 select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select ARCH_WANT_FRAME_POINTERS + select GENERIC_IOMAP help UniCore-32 is 32-bit Instruction Set Architecture, including a series of low-power-consumption RISC chip @@ -30,9 +31,6 @@ config GENERIC_CLOCKEVENTS config GENERIC_CSUM def_bool y -config GENERIC_IOMAP - def_bool y - config NO_IOPORT bool diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d6ddc0bfe36a..1a31254ceb83 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -78,6 +78,7 @@ config X86 select HAVE_BPF_JIT if (X86_64 && NET) select CLKEVT_I8253 select ARCH_HAVE_NMI_SAFE_CMPXCHG + select GENERIC_IOMAP config INSTRUCTION_DECODER def_bool (KPROBES || PERF_EVENTS) @@ -143,9 +144,6 @@ config NEED_SG_DMA_LENGTH config GENERIC_ISA_DMA def_bool ISA_DMA_API -config GENERIC_IOMAP - def_bool y - config GENERIC_BUG def_bool y depends on BUG diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index c2cf2eda0626..448303bdb85f 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -19,6 +19,8 @@ #include <asm-generic/iomap.h> #endif +#include <asm-generic/pci_iomap.h> + #ifndef mmiowb #define mmiowb() do {} while (0) #endif @@ -283,9 +285,7 @@ static inline void writesb(const void __iomem *addr, const void *buf, int len) #define __io_virt(x) ((void __force *) (x)) #ifndef CONFIG_GENERIC_IOMAP -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) { } diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h index 98dcd76ce836..8a3d4fde2604 100644 --- a/include/asm-generic/iomap.h +++ b/include/asm-generic/iomap.h @@ -67,18 +67,15 @@ extern void ioport_unmap(void __iomem *); #endif #ifdef CONFIG_PCI -/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ +/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */ struct pci_dev; -extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); extern void pci_iounmap(struct pci_dev *dev, void __iomem *); #else struct pci_dev; -static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) -{ - return NULL; -} static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) { } #endif +#include <asm-generic/pci_iomap.h> + #endif diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h new file mode 100644 index 000000000000..8de4b73e19e2 --- /dev/null +++ b/include/asm-generic/pci_iomap.h @@ -0,0 +1,25 @@ +/* Generic I/O port emulation, based on MN10300 code + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#ifndef __ASM_GENERIC_PCI_IOMAP_H +#define __ASM_GENERIC_PCI_IOMAP_H + +struct pci_dev; +#ifdef CONFIG_PCI +/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); +#else +static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) +{ + return NULL; +} +#endif + +#endif /* __ASM_GENERIC_IO_H */ diff --git a/lib/Kconfig b/lib/Kconfig index f34be6417d71..7f6b8bca8c25 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -19,6 +19,13 @@ config RATIONAL config GENERIC_FIND_FIRST_BIT bool +config GENERIC_PCI_IOMAP + bool + +config GENERIC_IOMAP + bool + select GENERIC_PCI_IOMAP + config CRC_CCITT tristate "CRC-CCITT functions" help diff --git a/lib/Makefile b/lib/Makefile index c0ffaaff6534..884ed376164d 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -33,6 +33,7 @@ endif lib-$(CONFIG_HOTPLUG) += kobject_uevent.o obj-$(CONFIG_GENERIC_IOMAP) += iomap.o +obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o diff --git a/lib/iomap.c b/lib/iomap.c index 5dbcb4b2d864..ada922a808e6 100644 --- a/lib/iomap.c +++ b/lib/iomap.c @@ -242,45 +242,11 @@ EXPORT_SYMBOL(ioport_unmap); #endif /* CONFIG_HAS_IOPORT */ #ifdef CONFIG_PCI -/** - * pci_iomap - create a virtual mapping cookie for a PCI BAR - * @dev: PCI device that owns the BAR - * @bar: BAR number - * @maxlen: length of the memory to map - * - * Using this function you will get a __iomem address to your device BAR. - * You can access it using ioread*() and iowrite*(). These functions hide - * the details if this is a MMIO or PIO address space and will just do what - * you expect from them in the correct way. - * - * @maxlen specifies the maximum length to map. If you want to get access to - * the complete BAR without checking for its length first, pass %0 here. - * */ -void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) -{ - resource_size_t start = pci_resource_start(dev, bar); - resource_size_t len = pci_resource_len(dev, bar); - unsigned long flags = pci_resource_flags(dev, bar); - - if (!len || !start) - return NULL; - if (maxlen && len > maxlen) - len = maxlen; - if (flags & IORESOURCE_IO) - return ioport_map(start, len); - if (flags & IORESOURCE_MEM) { - if (flags & IORESOURCE_CACHEABLE) - return ioremap(start, len); - return ioremap_nocache(start, len); - } - /* What? */ - return NULL; -} - +/* Hide the details if this is a MMIO or PIO address space and just do what + * you expect in the correct way. */ void pci_iounmap(struct pci_dev *dev, void __iomem * addr) { IO_COND(addr, /* nothing */, iounmap(addr)); } -EXPORT_SYMBOL(pci_iomap); EXPORT_SYMBOL(pci_iounmap); #endif /* CONFIG_PCI */ diff --git a/lib/pci_iomap.c b/lib/pci_iomap.c new file mode 100644 index 000000000000..4b0fdc22e688 --- /dev/null +++ b/lib/pci_iomap.c @@ -0,0 +1,48 @@ +/* + * Implement the default iomap interfaces + * + * (C) Copyright 2004 Linus Torvalds + */ +#include <linux/pci.h> +#include <linux/io.h> + +#include <linux/export.h> + +#ifdef CONFIG_PCI +/** + * pci_iomap - create a virtual mapping cookie for a PCI BAR + * @dev: PCI device that owns the BAR + * @bar: BAR number + * @maxlen: length of the memory to map + * + * Using this function you will get a __iomem address to your device BAR. + * You can access it using ioread*() and iowrite*(). These functions hide + * the details if this is a MMIO or PIO address space and will just do what + * you expect from them in the correct way. + * + * @maxlen specifies the maximum length to map. If you want to get access to + * the complete BAR without checking for its length first, pass %0 here. + * */ +void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen) +{ + resource_size_t start = pci_resource_start(dev, bar); + resource_size_t len = pci_resource_len(dev, bar); + unsigned long flags = pci_resource_flags(dev, bar); + + if (!len || !start) + return NULL; + if (maxlen && len > maxlen) + len = maxlen; + if (flags & IORESOURCE_IO) + return ioport_map(start, len); + if (flags & IORESOURCE_MEM) { + if (flags & IORESOURCE_CACHEABLE) + return ioremap(start, len); + return ioremap_nocache(start, len); + } + /* What? */ + return NULL; +} + +EXPORT_SYMBOL(pci_iomap); +#endif /* CONFIG_PCI */ |
