On Wed, Mar 05, 2014 at 11:49:08AM +0000, Liviu Dudau wrote: > The inline version of ioport_map() that gets used when !CONFIG_GENERIC_IOMAP > is wrong. It returns a mapped (i.e. virtual) address that can start from > zero and completely ignores the PCI_IOBASE and IO_SPACE_LIMIT that most > architectures that use !CONFIG_GENERIC_MAP define. What value does PCI_IOBASE and IO_SPACE_LIMIT have on other architectures who make use of asm-generic/io.h ? $ git grep asm-generic/io.h arch/ arch/arc/include/asm/io.h:#include <asm-generic/io.h> arch/blackfin/include/asm/io.h:#include <asm-generic/io.h> arch/metag/include/asm/io.h:#include <asm-generic/io.h> arch/microblaze/include/asm/io.h:/* from asm-generic/io.h */ arch/openrisc/include/asm/io.h:#include <asm-generic/io.h> arch/s390/include/asm/io.h:#include <asm-generic/io.h> arch/score/include/asm/io.h:#include <asm-generic/io.h> arch/unicore32/include/asm/io.h:#include <asm-generic/io.h> arch/xtensa/include/asm/io.h:#include <asm-generic/io.h> $ arch/arc/include/asm/io.h:#define PCI_IOBASE ((void __iomem *)0) arch/arm64/include/asm/io.h:#define PCI_IOBASE ((void __iomem *)(MODULES_VADDR - SZ_2M)) arch/arm64/include/asm/io.h: return readb(addr + PCI_IOBASE); arch/arm64/include/asm/io.h: return readw(addr + PCI_IOBASE); arch/arm64/include/asm/io.h: return readl(addr + PCI_IOBASE); arch/arm64/include/asm/io.h: writeb(b, addr + PCI_IOBASE); arch/arm64/include/asm/io.h: writew(b, addr + PCI_IOBASE); arch/arm64/include/asm/io.h: writel(b, addr + PCI_IOBASE); arch/arm64/include/asm/io.h: *buf++ = __raw_readb(addr + PCI_IOBASE);arch/arm64/include/asm/io.h: *buf++ = __raw_readw(addr + PCI_IOBASE);arch/arm64/include/asm/io.h: *buf++ = __raw_readl(addr + PCI_IOBASE);arch/arm64/include/asm/io.h: __raw_writeb(*buf++, addr + PCI_IOBASE);arch/arm64/include/asm/io.h: __raw_writew(*buf++, addr + PCI_IOBASE);arch/arm64/include/asm/io.h: __raw_writel(*buf++, addr + PCI_IOBASE);arch/unicore32/include/asm/io.h:#define PCI_IOBASE PKUNITY_PCILIO_BASE arch/unicore32/include/asm/io.h:#define PIO_OFFSET (unsigned int)(PCI_IOBASE) -- FTTC broadband for 0.8mile line: now at 9.7Mbps down 460kbps up... slowly improving, and getting towards what was expected from it. -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
