2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice unmodified, this list of conditions, and the following
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include <machine/vm.h>
34 static inline uint32_t
35 __raw_readl(const volatile void *addr)
37 return *(const volatile uint32_t *)addr;
41 __raw_writel(uint32_t b, volatile void *addr)
43 *(volatile uint32_t *)addr = b;
46 static inline uint64_t
47 __raw_readq(const volatile void *addr)
49 return *(const volatile uint64_t *)addr;
53 __raw_writeq(uint64_t b, volatile void *addr)
55 *(volatile uint64_t *)addr = b;
59 * XXX This is all x86 specific. It should be bus space access.
65 writel(uint32_t b, void *addr)
67 *(volatile uint32_t *)addr = b;
72 writeq(uint64_t b, void *addr)
74 *(volatile uint64_t *)addr = b;
79 writeb(uint8_t b, void *addr)
81 *(volatile uint8_t *)addr = b;
86 writew(uint16_t b, void *addr)
88 *(volatile uint16_t *)addr = b;
91 void *_ioremap_attr(vm_paddr_t phys_addr, unsigned long size, int attr);
92 #define ioremap_nocache(addr, size) \
93 _ioremap_attr((addr), (size), VM_MEMATTR_UNCACHEABLE)
94 #define ioremap_wc(addr, size) \
95 _ioremap_attr((addr), (size), VM_MEMATTR_WRITE_COMBINING)
96 #define ioremap ioremap_nocache
97 void iounmap(void *addr);
99 #define memset_io(a, b, c) memset((a), (b), (c))
100 #define memcpy_fromio(a, b, c) memcpy((a), (b), (c))
101 #define memcpy_toio(a, b, c) memcpy((a), (b), (c))
104 __iowrite64_copy(void *to, void *from, size_t count)
111 for (i = 0, src = from, dst = to; i < count; i++, src++, dst++)
112 __raw_writeq(*src, dst);
119 for (i = 0, src = from, dst = to; i < count; i++, src++, dst++)
120 __raw_writel(*src, dst);
125 #endif /* _LINUX_IO_H_ */