2 * Copyright 2006 PathScale, Inc. All Rights Reserved.
4 * This file is free software; you can redistribute it and/or modify
5 * it under the terms of version 2 of the GNU General Public License
6 * as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software Foundation,
15 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
21 #include <linux/types.h>
27 void __iowrite32_copy(void __iomem *to, const void *from, size_t count);
28 void __iowrite64_copy(void __iomem *to, const void *from, size_t count);
30 int ioremap_page_range(unsigned long addr, unsigned long end,
31 unsigned long phys_addr, pgprot_t prot);
34 * Managed iomap interface
36 #ifdef CONFIG_HAS_IOPORT
37 void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
39 void devm_ioport_unmap(struct device *dev, void __iomem *addr);
41 static inline void __iomem *devm_ioport_map(struct device *dev,
48 static inline void devm_ioport_unmap(struct device *dev, void __iomem *addr)
53 void __iomem * devm_ioremap(struct device *dev, unsigned long offset,
55 void __iomem * devm_ioremap_nocache(struct device *dev, unsigned long offset,
57 void devm_iounmap(struct device *dev, void __iomem *addr);
60 * check_signature - find BIOS signatures
61 * @io_addr: mmio address to check
62 * @signature: signature block
63 * @length: length of signature
65 * Perform a signature comparison with the mmio address io_addr. This
66 * address should have been obtained by ioremap.
67 * Returns 1 on a match.
70 static inline int check_signature(const volatile void __iomem *io_addr,
71 const unsigned char *signature, int length)
75 if (readb(io_addr) != *signature)
86 #endif /* _LINUX_IO_H */