1/* 2 * Copyright 2020, Data61 3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO) 4 * ABN 41 687 119 230. 5 * 6 * This software may be distributed and modified according to the terms of 7 * the GNU General Public License version 2. Note that NO WARRANTY is provided. 8 * See "LICENSE_GPLv2.txt" for details. 9 * 10 * @TAG(DATA61_GPL) 11 */ 12 13#pragma once 14 15#define __arch_getl(addr) *((volatile uint32_t*)(addr)) 16#define __arch_getw(addr) *((volatile uint16_t*)(addr)) 17#define __arch_getb(addr) *((volatile uint8_t*)(addr)) 18 19#define __arch_putl(val, addr) *((volatile uint32_t*)(addr)) = val 20#define __arch_putw(val, addr) *((volatile uint16_t*)(addr)) = val 21#define __arch_putb(val, addr) *((volatile uint8_t*)(addr)) = val 22 23 24//#define __raw_writel(...) writel(__VA_ARGS__) 25//#define __raw_readl(...) readl(__VA_ARGS__) 26 27#define __raw_writeb(v,a) __arch_putb(v,a) 28#define __raw_writew(v,a) __arch_putw(v,a) 29#define __raw_writel(v,a) __arch_putl(v,a) 30 31#define __raw_readb(a) __arch_getb(a) 32#define __raw_readw(a) __arch_getw(a) 33#define __raw_readl(a) __arch_getl(a) 34 35/* 36 * TODO: The kernel offers some more advanced versions of barriers, it might 37 * have some advantages to use them instead of the simple one here. 38 */ 39#define dmb() asm volatile("dmb sy" ::: "memory") 40#define dsb() asm volatile("dsb sy" ::: "memory") 41#define isb() asm volatile("isb sy" ::: "memory") 42#define mb() dsb() 43#define __iormb() dmb() 44#define __iowmb() dmb() 45 46#define writeb(v,c) ({ uint8_t __v = v; __iowmb(); __arch_putb(__v,c); __v; }) 47#define writew(v,c) ({ uint16_t __v = v; __iowmb(); __arch_putw(__v,c); __v; }) 48#define writel(v,c) ({ uint32_t __v = v; __iowmb(); __arch_putl(__v,c); __v; }) 49 50#define readb(c) ({ uint8_t __v = __arch_getb(c); __iormb(); __v; }) 51#define readw(c) ({ uint16_t __v = __arch_getw(c); __iormb(); __v; }) 52#define readl(c) ({ uint32_t __v = __arch_getl(c); __iormb(); __v; }) 53 54 55 56#define __cpu_to_le64(x) ((__force __le64)(__u64)(x)) 57#define __le64_to_cpu(x) ((__force __u64)(__le64)(x)) 58#define __cpu_to_le32(x) ((__force __le32)(__u32)(x)) 59#define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) 60#define __cpu_to_le16(x) ((__force __le16)(__u16)(x)) 61#define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) 62#define __cpu_to_be64(x) ((__force __be64)__swab64((x))) 63#define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x)) 64#define __cpu_to_be32(x) ((__force __be32)__swab32((x))) 65#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x)) 66#define __cpu_to_be16(x) ((__force __be16)__swab16((x))) 67#define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x)) 68 69#define cpu_to_le64 __cpu_to_le64 70#define le64_to_cpu __le64_to_cpu 71#define cpu_to_le32 __cpu_to_le32 72#define le32_to_cpu __le32_to_cpu 73#define cpu_to_le16 __cpu_to_le16 74#define le16_to_cpu __le16_to_cpu 75#define cpu_to_be64 __cpu_to_be64 76#define be64_to_cpu __be64_to_cpu 77#define cpu_to_be32 __cpu_to_be32 78#define be32_to_cpu __be32_to_cpu 79#define cpu_to_be16 __cpu_to_be16 80#define be16_to_cpu __be16_to_cpu 81#define cpu_to_le64p __cpu_to_le64p 82#define le64_to_cpup __le64_to_cpup 83#define cpu_to_le32p __cpu_to_le32p 84#define le32_to_cpup __le32_to_cpup 85#define cpu_to_le16p __cpu_to_le16p 86#define le16_to_cpup __le16_to_cpup 87#define cpu_to_be64p __cpu_to_be64p 88#define be64_to_cpup __be64_to_cpup 89#define cpu_to_be32p __cpu_to_be32p 90#define be32_to_cpup __be32_to_cpup 91#define cpu_to_be16p __cpu_to_be16p 92#define be16_to_cpup __be16_to_cpup 93#define cpu_to_le64s __cpu_to_le64s 94#define le64_to_cpus __le64_to_cpus 95#define cpu_to_le32s __cpu_to_le32s 96#define le32_to_cpus __le32_to_cpus 97#define cpu_to_le16s __cpu_to_le16s 98#define le16_to_cpus __le16_to_cpus 99#define cpu_to_be64s __cpu_to_be64s 100#define be64_to_cpus __be64_to_cpus 101#define cpu_to_be32s __cpu_to_be32s 102#define be32_to_cpus __be32_to_cpus 103#define cpu_to_be16s __cpu_to_be16s 104#define be16_to_cpus __be16_to_cpus 105 106#define out_arch(type, endian, a, v) __raw_write##type(cpu_to_##endian(v), a) 107#define in_arch(type, endian, a) endian##_to_cpu(__raw_read##type(a)) 108 109#define out_le32(a, v) out_arch(l, le32, a, v) 110#define out_le16(a, v) out_arch(w, le16, a, v) 111 112#define in_le32(a) in_arch(l, le32, a) 113#define in_le16(a) in_arch(w, le16, a) 114 115#define out_be32(a, v) out_arch(l, be32, a, v) 116#define out_be16(a, v) out_arch(w, be16, a, v) 117 118#define in_be32(a) in_arch(l, be32, a) 119#define in_be16(a) in_arch(w, be16, a) 120 121#define out_8(a, v) __raw_writeb(v, a) 122#define in_8(a) __raw_readb(a) 123 124/* 125 * Clear and set bits in one shot. These macros can be used to clear and 126 * set multiple bits in a register using a single call. These macros can 127 * also be used to set a multiple-bit bit pattern using a mask, by 128 * specifying the mask in the 'clear' parameter and the new bit pattern 129 * in the 'set' parameter. 130 */ 131 132#define clrbits(type, addr, clear) \ 133 out_##type((addr), in_##type(addr) & ~(clear)) 134 135#define setbits(type, addr, set) \ 136 out_##type((addr), in_##type(addr) | (set)) 137 138#define clrsetbits(type, addr, clear, set) \ 139 out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) 140 141#define clrbits_be32(addr, clear) clrbits(be32, addr, clear) 142#define setbits_be32(addr, set) setbits(be32, addr, set) 143#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) 144 145#define clrbits_le32(addr, clear) clrbits(le32, addr, clear) 146#define setbits_le32(addr, set) setbits(le32, addr, set) 147#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) 148 149#define clrbits_be16(addr, clear) clrbits(be16, addr, clear) 150#define setbits_be16(addr, set) setbits(be16, addr, set) 151#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) 152 153#define clrbits_le16(addr, clear) clrbits(le16, addr, clear) 154#define setbits_le16(addr, set) setbits(le16, addr, set) 155#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) 156 157#define clrbits_8(addr, clear) clrbits(8, addr, clear) 158#define setbits_8(addr, set) setbits(8, addr, set) 159#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) 160