X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fio.h;h=9e419ebfc98b86c009ec2a51823bc880d0c226cd;hb=7f25377043925554cb9f3f9d8ada3390f71a5d10;hp=85533ec5aaa17f4146452a16ef61ca40fc601c80;hpb=27ee6e0592c7d624836835dd8d2f0f74e9d289f6;p=pandora-kernel.git diff --git a/include/linux/io.h b/include/linux/io.h index 85533ec5aaa1..9e419ebfc98b 100644 --- a/include/linux/io.h +++ b/include/linux/io.h @@ -18,8 +18,62 @@ #ifndef _LINUX_IO_H #define _LINUX_IO_H +#include #include +#include + +struct device; void __iowrite32_copy(void __iomem *to, const void *from, size_t count); +void __iowrite64_copy(void __iomem *to, const void *from, size_t count); + +int ioremap_page_range(unsigned long addr, unsigned long end, + unsigned long phys_addr, pgprot_t prot); + +/* + * Managed iomap interface + */ +void __iomem * devm_ioport_map(struct device *dev, unsigned long port, + unsigned int nr); +void devm_ioport_unmap(struct device *dev, void __iomem *addr); + +void __iomem * devm_ioremap(struct device *dev, unsigned long offset, + unsigned long size); +void __iomem * devm_ioremap_nocache(struct device *dev, unsigned long offset, + unsigned long size); +void devm_iounmap(struct device *dev, void __iomem *addr); + +void __iomem * pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen); +void pcim_iounmap(struct pci_dev *pdev, void __iomem *addr); +void __iomem * const * pcim_iomap_table(struct pci_dev *pdev); + +int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name); + +/** + * check_signature - find BIOS signatures + * @io_addr: mmio address to check + * @signature: signature block + * @length: length of signature + * + * Perform a signature comparison with the mmio address io_addr. This + * address should have been obtained by ioremap. + * Returns 1 on a match. + */ + +static inline int check_signature(const volatile void __iomem *io_addr, + const unsigned char *signature, int length) +{ + int retval = 0; + do { + if (readb(io_addr) != *signature) + goto out; + io_addr++; + signature++; + length--; + } while (length); + retval = 1; +out: + return retval; +} #endif /* _LINUX_IO_H */