projects / mirror_ubuntu-focal-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1162b070 VG |
1 | /* |
| 2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) | |
| 3 | * | |
| 4 | * This program is free software; you can redistribute it and/or modify | |
| 5 | * it under the terms of the GNU General Public License version 2 as | |
| 6 | * published by the Free Software Foundation. | |
| 7 | */ | |
| 8 | ||
| 9 | #ifndef _ASM_ARC_IO_H | |
| 10 | #define _ASM_ARC_IO_H | |
| 11 | ||
| 12 | #include <linux/types.h> | |
| 13 | #include <asm/byteorder.h> | |
| 14 | #include <asm/page.h> | |
| 15 | ||
| 1162b070 | 16 | extern void __iomem *ioremap(unsigned long physaddr, unsigned long size); |
| 4368902b GBY |
17 | extern void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size, |
| 18 | unsigned long flags); | |
| 1162b070 VG |
19 | extern void iounmap(const void __iomem *addr); |
| 20 | ||
| 21 | #define ioremap_nocache(phy, sz) ioremap(phy, sz) | |
| 22 | #define ioremap_wc(phy, sz) ioremap(phy, sz) | |
| 23 | ||
| 24 | /* Change struct page to physical address */ | |
| 25 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) | |
| 26 | ||
| 27 | #define __raw_readb __raw_readb | |
| 28 | static inline u8 __raw_readb(const volatile void __iomem *addr) | |
| 29 | { | |
| 30 | u8 b; | |
| 31 | ||
| 32 | __asm__ __volatile__( | |
| 33 | " ldb%U1 %0, %1 \n" | |
| 34 | : "=r" (b) | |
| 35 | : "m" (*(volatile u8 __force *)addr) | |
| 36 | : "memory"); | |
| 37 | ||
| 38 | return b; | |
| 39 | } | |
| 40 | ||
| 41 | #define __raw_readw __raw_readw | |
| 42 | static inline u16 __raw_readw(const volatile void __iomem *addr) | |
| 43 | { | |
| 44 | u16 s; | |
| 45 | ||
| 46 | __asm__ __volatile__( | |
| 47 | " ldw%U1 %0, %1 \n" | |
| 48 | : "=r" (s) | |
| 49 | : "m" (*(volatile u16 __force *)addr) | |
| 50 | : "memory"); | |
| 51 | ||
| 52 | return s; | |
| 53 | } | |
| 54 | ||
| 55 | #define __raw_readl __raw_readl | |
| 56 | static inline u32 __raw_readl(const volatile void __iomem *addr) | |
| 57 | { | |
| 58 | u32 w; | |
| 59 | ||
| 60 | __asm__ __volatile__( | |
| 61 | " ld%U1 %0, %1 \n" | |
| 62 | : "=r" (w) | |
| 63 | : "m" (*(volatile u32 __force *)addr) | |
| 64 | : "memory"); | |
| 65 | ||
| 66 | return w; | |
| 67 | } | |
| 68 | ||
| 69 | #define __raw_writeb __raw_writeb | |
| 70 | static inline void __raw_writeb(u8 b, volatile void __iomem *addr) | |
| 71 | { | |
| 72 | __asm__ __volatile__( | |
| 73 | " stb%U1 %0, %1 \n" | |
| 74 | : | |
| 75 | : "r" (b), "m" (*(volatile u8 __force *)addr) | |
| 76 | : "memory"); | |
| 77 | } | |
| 78 | ||
| 79 | #define __raw_writew __raw_writew | |
| 80 | static inline void __raw_writew(u16 s, volatile void __iomem *addr) | |
| 81 | { | |
| 82 | __asm__ __volatile__( | |
| 83 | " stw%U1 %0, %1 \n" | |
| 84 | : | |
| 85 | : "r" (s), "m" (*(volatile u16 __force *)addr) | |
| 86 | : "memory"); | |
| 87 | ||
| 88 | } | |
| 89 | ||
| 90 | #define __raw_writel __raw_writel | |
| 91 | static inline void __raw_writel(u32 w, volatile void __iomem *addr) | |
| 92 | { | |
| 93 | __asm__ __volatile__( | |
| 94 | " st%U1 %0, %1 \n" | |
| 95 | : | |
| 96 | : "r" (w), "m" (*(volatile u32 __force *)addr) | |
| 97 | : "memory"); | |
| 98 | ||
| 99 | } | |
| 100 | ||
| 6532b02f MJ |
101 | #define readb_relaxed readb |
| 102 | #define readw_relaxed readw | |
| 103 | #define readl_relaxed readl | |
| 104 | ||
| 1162b070 VG |
105 | #include <asm-generic/io.h> |
| 106 | ||
| 107 | #endif /* _ASM_ARC_IO_H */ |