1c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 2c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * linux/include/asm-arm/io.h 3c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 4c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Copyright (C) 1996-2000 Russell King 5c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 6c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * This program is free software; you can redistribute it and/or modify 7c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * it under the terms of the GNU General Public License version 2 as 8c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * published by the Free Software Foundation. 9c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 10c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Modifications: 11c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both 12c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * constant addresses and variable addresses. 13c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture 14c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * specific IO header files. 15c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. 16c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 04-Apr-1999 PJB Added check_signature. 17c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 12-Dec-1999 RMK More cleanups 18c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 18-Jun-2000 RMK Removed virt_to_* and friends definitions 19c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 05-Oct-2004 BJD Moved memory string functions to use void __iomem 20c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 21c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifndef __ASM_ARM_IO_H 22c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __ASM_ARM_IO_H 23c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 24c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef __KERNEL__ 25c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 26c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <linux/types.h> 27c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <asm/byteorder.h> 28c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <asm/memory.h> 29c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 30c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 31c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * ISA I/O bus memory addresses are 1:1 with the physical address. 32c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 33c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define isa_virt_to_bus virt_to_phys 34c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define isa_page_to_bus page_to_phys 35c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define isa_bus_to_virt phys_to_virt 36c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 37c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 38c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Generic IO read/write. These perform native-endian accesses. Note 39c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * that some architectures will want to re-define __raw_{read,write}w. 40c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 41c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __raw_writesb(void __iomem *addr, const void *data, int bytelen); 42c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __raw_writesw(void __iomem *addr, const void *data, int wordlen); 43c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __raw_writesl(void __iomem *addr, const void *data, int longlen); 44c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 45c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __raw_readsb(const void __iomem *addr, void *data, int bytelen); 46c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __raw_readsw(const void __iomem *addr, void *data, int wordlen); 47c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __raw_readsl(const void __iomem *addr, void *data, int longlen); 48c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 49c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __raw_writeb(v,a) (__chk_io_ptr(a), *(volatile unsigned char __force *)(a) = (v)) 50c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __raw_writew(v,a) (__chk_io_ptr(a), *(volatile unsigned short __force *)(a) = (v)) 51c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __raw_writel(v,a) (__chk_io_ptr(a), *(volatile unsigned int __force *)(a) = (v)) 52c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 53c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __raw_readb(a) (__chk_io_ptr(a), *(volatile unsigned char __force *)(a)) 54c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __raw_readw(a) (__chk_io_ptr(a), *(volatile unsigned short __force *)(a)) 55c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define __raw_readl(a) (__chk_io_ptr(a), *(volatile unsigned int __force *)(a)) 56c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 57c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 58c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Architecture ioremap implementation. 59c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 60c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * __ioremap takes CPU physical address. 61c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 62c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * __ioremap_pfn takes a Page Frame Number and an offset into that page 63c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 64c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __iomem * __ioremap_pfn(unsigned long, unsigned long, size_t, unsigned long); 65c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __iomem * __ioremap(unsigned long, size_t, unsigned long); 66c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __iounmap(void __iomem *addr); 67c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 68c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 69c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Bad read/write accesses... 70c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 71c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __readwrite_bug(const char *fn); 72c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 73c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 74c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Now, pick up the machine-defined IO definitions 75c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 76c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#include <asm/arch/io.h> 77c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 78c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef __io_pci 79c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#warning machine class uses buggy __io_pci 80c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 81c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#if defined(__arch_putb) || defined(__arch_putw) || defined(__arch_putl) || \ 82c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru defined(__arch_getb) || defined(__arch_getw) || defined(__arch_getl) 83c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#warning machine class uses old __arch_putw or __arch_getw 84c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 85c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 86c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 87c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * IO port access primitives 88c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * ------------------------- 89c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 90c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * The ARM doesn't have special IO access instructions; all IO is memory 91c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * mapped. Note that these are defined to perform little endian accesses 92c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * only. Their primary purpose is to access PCI and ISA peripherals. 93c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 94c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Note that for a big endian machine, this implies that the following 95c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * big endian mode connectivity is in place, as described by numerous 96c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * ARM documents: 97c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 98c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * PCI: D0-D7 D8-D15 D16-D23 D24-D31 99c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * ARM: D24-D31 D16-D23 D8-D15 D0-D7 100c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 101c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * The machine specific io.h include defines __io to translate an "IO" 102c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * address to a memory address. 103c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 104c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Note that we prevent GCC re-ordering or caching values in expressions 105c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * by introducing sequence points into the in*() definitions. Note that 106c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * __raw_* do not guarantee this behaviour. 107c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 108c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * The {in,out}[bwl] macros are for emulating x86-style PCI/ISA IO space. 109c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 110c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef __io 111c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outb(v,p) __raw_writeb(v,__io(p)) 112c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outw(v,p) __raw_writew((__force __u16) \ 113c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru cpu_to_le16(v),__io(p)) 114c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outl(v,p) __raw_writel((__force __u32) \ 115c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru cpu_to_le32(v),__io(p)) 116c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 117c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define inb(p) ({ __u8 __v = __raw_readb(__io(p)); __v; }) 118c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define inw(p) ({ __u16 __v = le16_to_cpu((__force __le16) \ 119c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __raw_readw(__io(p))); __v; }) 120c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define inl(p) ({ __u32 __v = le32_to_cpu((__force __le32) \ 121c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __raw_readl(__io(p))); __v; }) 122c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 123c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outsb(p,d,l) __raw_writesb(__io(p),d,l) 124c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outsw(p,d,l) __raw_writesw(__io(p),d,l) 125c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outsl(p,d,l) __raw_writesl(__io(p),d,l) 126c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 127c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define insb(p,d,l) __raw_readsb(__io(p),d,l) 128c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define insw(p,d,l) __raw_readsw(__io(p),d,l) 129c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define insl(p,d,l) __raw_readsl(__io(p),d,l) 130c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 131c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 132c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outb_p(val,port) outb((val),(port)) 133c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outw_p(val,port) outw((val),(port)) 134c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outl_p(val,port) outl((val),(port)) 135c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define inb_p(port) inb((port)) 136c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define inw_p(port) inw((port)) 137c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define inl_p(port) inl((port)) 138c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 139c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outsb_p(port,from,len) outsb(port,from,len) 140c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outsw_p(port,from,len) outsw(port,from,len) 141c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define outsl_p(port,from,len) outsl(port,from,len) 142c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define insb_p(port,to,len) insb(port,to,len) 143c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define insw_p(port,to,len) insw(port,to,len) 144c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define insl_p(port,to,len) insl(port,to,len) 145c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 146c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 147c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * String version of IO memory access ops: 148c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 149c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void _memcpy_fromio(void *, const volatile void __iomem *, size_t); 150c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void _memcpy_toio(volatile void __iomem *, const void *, size_t); 151c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void _memset_io(volatile void __iomem *, int, size_t); 152c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 153c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define mmiowb() 154c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 155c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 156c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Memory access primitives 157c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * ------------------------ 158c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 159c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * These perform PCI memory accesses via an ioremap region. They don't 160c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * take an address as such, but a cookie. 161c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 162c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Again, this are defined to perform little endian accesses. See the 163c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * IO port primitives for more information. 164c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 165c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifdef __mem_pci 166c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readb(c) ({ __u8 __v = __raw_readb(__mem_pci(c)); __v; }) 167c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readw(c) ({ __u16 __v = le16_to_cpu((__force __le16) \ 168c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __raw_readw(__mem_pci(c))); __v; }) 169c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readl(c) ({ __u32 __v = le32_to_cpu((__force __le32) \ 170c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru __raw_readl(__mem_pci(c))); __v; }) 171c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readb_relaxed(addr) readb(addr) 172c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readw_relaxed(addr) readw(addr) 173c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readl_relaxed(addr) readl(addr) 174c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 175c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readsb(p,d,l) __raw_readsb(__mem_pci(p),d,l) 176c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readsw(p,d,l) __raw_readsw(__mem_pci(p),d,l) 177c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readsl(p,d,l) __raw_readsl(__mem_pci(p),d,l) 178c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 179c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writeb(v,c) __raw_writeb(v,__mem_pci(c)) 180c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writew(v,c) __raw_writew((__force __u16) \ 181c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru cpu_to_le16(v),__mem_pci(c)) 182c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writel(v,c) __raw_writel((__force __u32) \ 183c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru cpu_to_le32(v),__mem_pci(c)) 184c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 185c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writesb(p,d,l) __raw_writesb(__mem_pci(p),d,l) 186c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writesw(p,d,l) __raw_writesw(__mem_pci(p),d,l) 187c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writesl(p,d,l) __raw_writesl(__mem_pci(p),d,l) 188c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 189c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define memset_io(c,v,l) _memset_io(__mem_pci(c),(v),(l)) 190c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define memcpy_fromio(a,c,l) _memcpy_fromio((a),__mem_pci(c),(l)) 191c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define memcpy_toio(c,a,l) _memcpy_toio(__mem_pci(c),(a),(l)) 192c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 193c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define eth_io_copy_and_sum(s,c,l,b) \ 194c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru eth_copy_and_sum((s),__mem_pci(c),(l),(b)) 195c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 196c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustatic inline int 197c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querucheck_signature(void __iomem *io_addr, const unsigned char *signature, 198c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int length) 199c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru{ 200c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru int retval = 0; 201c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru do { 202c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru if (readb(io_addr) != *signature) 203c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru goto out; 204c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru io_addr++; 205c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru signature++; 206c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru length--; 207c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru } while (length); 208c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru retval = 1; 209c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruout: 210c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru return retval; 211c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru} 212c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 213c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#elif !defined(readb) 214c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 215c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readb(c) (__readwrite_bug("readb"),0) 216c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readw(c) (__readwrite_bug("readw"),0) 217c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define readl(c) (__readwrite_bug("readl"),0) 218c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writeb(v,c) __readwrite_bug("writeb") 219c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writew(v,c) __readwrite_bug("writew") 220c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define writel(v,c) __readwrite_bug("writel") 221c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 222c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define eth_io_copy_and_sum(s,c,l,b) __readwrite_bug("eth_io_copy_and_sum") 223c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 224c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define check_signature(io,sig,len) (0) 225c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 226c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif /* __mem_pci */ 227c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 228c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 229c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * ioremap and friends. 230c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 231c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * ioremap takes a PCI memory address, as specified in 232c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Documentation/IO-mapping.txt. 233c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * 234c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 235c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifndef __arch_ioremap 236c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioremap(cookie,size) __ioremap(cookie,size,0) 237c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioremap_nocache(cookie,size) __ioremap(cookie,size,0) 238c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioremap_cached(cookie,size) __ioremap(cookie,size,L_PTE_CACHEABLE) 239c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define iounmap(cookie) __iounmap(cookie) 240c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#else 241c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioremap(cookie,size) __arch_ioremap((cookie),(size),0) 242c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioremap_nocache(cookie,size) __arch_ioremap((cookie),(size),0) 243c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioremap_cached(cookie,size) __arch_ioremap((cookie),(size),L_PTE_CACHEABLE) 244c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define iounmap(cookie) __arch_iounmap(cookie) 245c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 246c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 247c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 248c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * io{read,write}{8,16,32} macros 249c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 250c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#ifndef ioread8 251c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioread8(p) ({ unsigned int __v = __raw_readb(p); __v; }) 252c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioread16(p) ({ unsigned int __v = le16_to_cpu(__raw_readw(p)); __v; }) 253c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioread32(p) ({ unsigned int __v = le32_to_cpu(__raw_readl(p)); __v; }) 254c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 255c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define iowrite8(v,p) __raw_writeb(v, p) 256c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define iowrite16(v,p) __raw_writew(cpu_to_le16(v), p) 257c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define iowrite32(v,p) __raw_writel(cpu_to_le32(v), p) 258c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 259c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioread8_rep(p,d,c) __raw_readsb(p,d,c) 260c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioread16_rep(p,d,c) __raw_readsw(p,d,c) 261c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define ioread32_rep(p,d,c) __raw_readsl(p,d,c) 262c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 263c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define iowrite8_rep(p,s,c) __raw_writesb(p,s,c) 264c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define iowrite16_rep(p,s,c) __raw_writesw(p,s,c) 265c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define iowrite32_rep(p,s,c) __raw_writesl(p,s,c) 266c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 267c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __iomem *ioport_map(unsigned long port, unsigned int nr); 268c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void ioport_unmap(void __iomem *addr); 269c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif 270c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 271c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Querustruct pci_dev; 272c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 273c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen); 274c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void pci_iounmap(struct pci_dev *dev, void __iomem *addr); 275c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 276c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 277c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * can the hardware map this into one segment or not, given no other 278c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * constraints. 279c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 280c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define BIOVEC_MERGEABLE(vec1, vec2) \ 281c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2))) 282c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 283c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 284c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Convert a physical pointer to a virtual kernel pointer for /dev/mem 285c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * access 286c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 287c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define xlate_dev_mem_ptr(p) __va(p) 288c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 289c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 290c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Convert a virtual cached pointer to an uncached pointer 291c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 292c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#define xlate_dev_kmem_ptr(p) p 293c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 294c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru/* 295c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * Register ISA memory and port locations for glibc iopl/inb/outb 296c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru * emulation. 297c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru */ 298c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queruextern void register_isa_ports(unsigned int mmio, unsigned int io, 299c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru unsigned int io_shift); 300c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru 301c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif /* __KERNEL__ */ 302c559cd81139f97cecad1ad91a0b2e25a5936d53Jean-Baptiste Queru#endif /* __ASM_ARM_IO_H */ 303