diff options
Diffstat (limited to 'sys/compat/linuxkpi/common/include/linux/io.h')
| -rw-r--r-- | sys/compat/linuxkpi/common/include/linux/io.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/sys/compat/linuxkpi/common/include/linux/io.h b/sys/compat/linuxkpi/common/include/linux/io.h new file mode 100644 index 000000000000..16543ff11573 --- /dev/null +++ b/sys/compat/linuxkpi/common/include/linux/io.h @@ -0,0 +1,142 @@ +/*- + * Copyright (c) 2010 Isilon Systems, Inc. + * Copyright (c) 2010 iX Systems, Inc. + * Copyright (c) 2010 Panasas, Inc. + * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice unmodified, this list of conditions, and the following + * disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * $FreeBSD$ + */ +#ifndef _LINUX_IO_H_ +#define _LINUX_IO_H_ + +#include <machine/vm.h> +#include <sys/endian.h> + +static inline uint32_t +__raw_readl(const volatile void *addr) +{ + return *(const volatile uint32_t *)addr; +} + +static inline void +__raw_writel(uint32_t b, volatile void *addr) +{ + *(volatile uint32_t *)addr = b; +} + +static inline uint64_t +__raw_readq(const volatile void *addr) +{ + return *(const volatile uint64_t *)addr; +} + +static inline void +__raw_writeq(uint64_t b, volatile void *addr) +{ + *(volatile uint64_t *)addr = b; +} + +/* + * XXX This is all x86 specific. It should be bus space access. + */ +#define mmiowb() + +#undef writel +static inline void +writel(uint32_t b, void *addr) +{ + *(volatile uint32_t *)addr = b; +} + +#undef writeq +static inline void +writeq(uint64_t b, void *addr) +{ + *(volatile uint64_t *)addr = b; +} + +#undef writeb +static inline void +writeb(uint8_t b, void *addr) +{ + *(volatile uint8_t *)addr = b; +} + +#undef writew +static inline void +writew(uint16_t b, void *addr) +{ + *(volatile uint16_t *)addr = b; +} + +#undef ioread32be +static inline uint32_t +ioread32be(const volatile void *addr) +{ + return be32toh(*(const volatile uint32_t *)addr); +} + +#undef iowrite32be +static inline void +iowrite32be(uint32_t v, volatile void *addr) +{ + *(volatile uint32_t *)addr = htobe32(v); +} + +void *_ioremap_attr(vm_paddr_t phys_addr, unsigned long size, int attr); +#define ioremap_nocache(addr, size) \ + _ioremap_attr((addr), (size), VM_MEMATTR_UNCACHEABLE) +#define ioremap_wc(addr, size) \ + _ioremap_attr((addr), (size), VM_MEMATTR_WRITE_COMBINING) +#define ioremap ioremap_nocache +void iounmap(void *addr); + +#define memset_io(a, b, c) memset((a), (b), (c)) +#define memcpy_fromio(a, b, c) memcpy((a), (b), (c)) +#define memcpy_toio(a, b, c) memcpy((a), (b), (c)) + +static inline void +__iowrite64_copy(void *to, void *from, size_t count) +{ +#ifdef __LP64__ + uint64_t *src; + uint64_t *dst; + int i; + + for (i = 0, src = from, dst = to; i < count; i++, src++, dst++) + __raw_writeq(*src, dst); +#else + uint32_t *src; + uint32_t *dst; + int i; + + count *= 2; + for (i = 0, src = from, dst = to; i < count; i++, src++, dst++) + __raw_writel(*src, dst); +#endif +} + + +#endif /* _LINUX_IO_H_ */ |