io.h revision 1.2.6.2
1 1.2.6.2 yamt /* $NetBSD: io.h,v 1.2.6.2 2014/05/22 11:40:55 yamt Exp $ */ 2 1.2.6.2 yamt 3 1.2.6.2 yamt /*- 4 1.2.6.2 yamt * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.2.6.2 yamt * All rights reserved. 6 1.2.6.2 yamt * 7 1.2.6.2 yamt * This code is derived from software contributed to The NetBSD Foundation 8 1.2.6.2 yamt * by Taylor R. Campbell. 9 1.2.6.2 yamt * 10 1.2.6.2 yamt * Redistribution and use in source and binary forms, with or without 11 1.2.6.2 yamt * modification, are permitted provided that the following conditions 12 1.2.6.2 yamt * are met: 13 1.2.6.2 yamt * 1. Redistributions of source code must retain the above copyright 14 1.2.6.2 yamt * notice, this list of conditions and the following disclaimer. 15 1.2.6.2 yamt * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.6.2 yamt * notice, this list of conditions and the following disclaimer in the 17 1.2.6.2 yamt * documentation and/or other materials provided with the distribution. 18 1.2.6.2 yamt * 19 1.2.6.2 yamt * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.6.2 yamt * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.6.2 yamt * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.6.2 yamt * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.6.2 yamt * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.6.2 yamt * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.6.2 yamt * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.6.2 yamt * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.6.2 yamt * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.6.2 yamt * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.6.2 yamt * POSSIBILITY OF SUCH DAMAGE. 30 1.2.6.2 yamt */ 31 1.2.6.2 yamt 32 1.2.6.2 yamt #ifndef _ASM_IO_H_ 33 1.2.6.2 yamt #define _ASM_IO_H_ 34 1.2.6.2 yamt 35 1.2.6.2 yamt #include <sys/bus.h> 36 1.2.6.2 yamt 37 1.2.6.2 yamt #include <uvm/uvm_page.h> 38 1.2.6.2 yamt 39 1.2.6.2 yamt #include <linux/mm_types.h> 40 1.2.6.2 yamt 41 1.2.6.2 yamt /* 42 1.2.6.2 yamt * XXX This is bollocks, and is wrong on various architectures (should 43 1.2.6.2 yamt * work for x86; who knows what else), but bus_space_barrier won't work 44 1.2.6.2 yamt * because we have no bus space tag or handle or offset or anything. 45 1.2.6.2 yamt */ 46 1.2.6.2 yamt #define mmiowb() __insn_barrier() 47 1.2.6.2 yamt 48 1.2.6.2 yamt #define memcpy_fromio memcpy 49 1.2.6.2 yamt #define memcpy_toio memcpy 50 1.2.6.2 yamt #define memset_io memset 51 1.2.6.2 yamt 52 1.2.6.2 yamt /* 53 1.2.6.2 yamt * XXX Not sure why this is here, but so it is in Linux... Also, not 54 1.2.6.2 yamt * sure what the right type is: Linux uses dma_addr_t, but I don't 55 1.2.6.2 yamt * think bus_addr_t is right here -- paddr_t sounds more appropriate. 56 1.2.6.2 yamt */ 57 1.2.6.2 yamt 58 1.2.6.2 yamt static inline bus_addr_t 59 1.2.6.2 yamt page_to_phys(struct page *page) 60 1.2.6.2 yamt { 61 1.2.6.2 yamt return VM_PAGE_TO_PHYS(&page->p_vmp); 62 1.2.6.2 yamt } 63 1.2.6.2 yamt 64 1.2.6.2 yamt #endif /* _ASM_IO_H_ */ 65
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