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1 | /* | |
2 | * Copyright (c) 2011 The Chromium OS Authors. | |
3 | * | |
4 | * SPDX-License-Identifier: GPL-2.0+ | |
5 | */ | |
6 | ||
7 | #ifndef __SANDBOX_ASM_IO_H | |
8 | #define __SANDBOX_ASM_IO_H | |
9 | ||
10 | void *phys_to_virt(phys_addr_t paddr); | |
11 | #define phys_to_virt phys_to_virt | |
12 | ||
13 | phys_addr_t virt_to_phys(void *vaddr); | |
14 | #define virt_to_phys virt_to_phys | |
15 | ||
16 | void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags); | |
17 | #define map_physmem map_physmem | |
18 | ||
19 | /* | |
20 | * Take down a mapping set up by map_physmem(). | |
21 | */ | |
22 | void unmap_physmem(const void *vaddr, unsigned long flags); | |
23 | #define unmap_physmem unmap_physmem | |
24 | ||
25 | #include <asm-generic/io.h> | |
26 | ||
27 | /* For sandbox, we want addresses to point into our RAM buffer */ | |
28 | static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) | |
29 | { | |
30 | return map_physmem(paddr, len, MAP_WRBACK); | |
31 | } | |
32 | ||
33 | /* Remove a previous mapping */ | |
34 | static inline void unmap_sysmem(const void *vaddr) | |
35 | { | |
36 | unmap_physmem(vaddr, MAP_WRBACK); | |
37 | } | |
38 | ||
39 | /* Map from a pointer to our RAM buffer */ | |
40 | phys_addr_t map_to_sysmem(const void *ptr); | |
41 | ||
42 | /* Define nops for sandbox I/O access */ | |
43 | #define readb(addr) ((void)addr, 0) | |
44 | #define readw(addr) ((void)addr, 0) | |
45 | #define readl(addr) ((void)addr, 0) | |
46 | #ifdef CONFIG_SANDBOX64 | |
47 | #define readq(addr) ((void)addr, 0) | |
48 | #endif | |
49 | #define writeb(v, addr) ((void)addr) | |
50 | #define writew(v, addr) ((void)addr) | |
51 | #define writel(v, addr) ((void)addr) | |
52 | #ifdef CONFIG_SANDBOX64 | |
53 | #define writeq(v, addr) ((void)addr) | |
54 | #endif | |
55 | ||
56 | /* | |
57 | * Clear and set bits in one shot. These macros can be used to clear and | |
58 | * set multiple bits in a register using a single call. These macros can | |
59 | * also be used to set a multiple-bit bit pattern using a mask, by | |
60 | * specifying the mask in the 'clear' parameter and the new bit pattern | |
61 | * in the 'set' parameter. | |
62 | */ | |
63 | ||
64 | #define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a) | |
65 | #define in_arch(type,endian,a) endian##_to_cpu(read##type(a)) | |
66 | ||
67 | #define out_le64(a,v) out_arch(q,le64,a,v) | |
68 | #define out_le32(a,v) out_arch(l,le32,a,v) | |
69 | #define out_le16(a,v) out_arch(w,le16,a,v) | |
70 | ||
71 | #define in_le64(a) in_arch(q,le64,a) | |
72 | #define in_le32(a) in_arch(l,le32,a) | |
73 | #define in_le16(a) in_arch(w,le16,a) | |
74 | ||
75 | #define out_be32(a,v) out_arch(l,be32,a,v) | |
76 | #define out_be16(a,v) out_arch(w,be16,a,v) | |
77 | ||
78 | #define in_be32(a) in_arch(l,be32,a) | |
79 | #define in_be16(a) in_arch(w,be16,a) | |
80 | ||
81 | #define out_8(a,v) writeb(v,a) | |
82 | #define in_8(a) readb(a) | |
83 | ||
84 | #define clrbits(type, addr, clear) \ | |
85 | out_##type((addr), in_##type(addr) & ~(clear)) | |
86 | ||
87 | #define setbits(type, addr, set) \ | |
88 | out_##type((addr), in_##type(addr) | (set)) | |
89 | ||
90 | #define clrsetbits(type, addr, clear, set) \ | |
91 | out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) | |
92 | ||
93 | #define clrbits_be32(addr, clear) clrbits(be32, addr, clear) | |
94 | #define setbits_be32(addr, set) setbits(be32, addr, set) | |
95 | #define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) | |
96 | ||
97 | #define clrbits_le32(addr, clear) clrbits(le32, addr, clear) | |
98 | #define setbits_le32(addr, set) setbits(le32, addr, set) | |
99 | #define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) | |
100 | ||
101 | #define clrbits_be16(addr, clear) clrbits(be16, addr, clear) | |
102 | #define setbits_be16(addr, set) setbits(be16, addr, set) | |
103 | #define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) | |
104 | ||
105 | #define clrbits_le16(addr, clear) clrbits(le16, addr, clear) | |
106 | #define setbits_le16(addr, set) setbits(le16, addr, set) | |
107 | #define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) | |
108 | ||
109 | #define clrbits_8(addr, clear) clrbits(8, addr, clear) | |
110 | #define setbits_8(addr, set) setbits(8, addr, set) | |
111 | #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) | |
112 | ||
113 | /* I/O access functions */ | |
114 | int inl(unsigned int addr); | |
115 | int inw(unsigned int addr); | |
116 | int inb(unsigned int addr); | |
117 | ||
118 | void outl(unsigned int value, unsigned int addr); | |
119 | void outw(unsigned int value, unsigned int addr); | |
120 | void outb(unsigned int value, unsigned int addr); | |
121 | ||
122 | #define out_arch(type,endian,a,v) write##type(cpu_to_##endian(v),a) | |
123 | #define in_arch(type,endian,a) endian##_to_cpu(read##type(a)) | |
124 | ||
125 | #define out_le32(a,v) out_arch(l,le32,a,v) | |
126 | #define out_le16(a,v) out_arch(w,le16,a,v) | |
127 | ||
128 | #define in_le32(a) in_arch(l,le32,a) | |
129 | #define in_le16(a) in_arch(w,le16,a) | |
130 | ||
131 | #define out_be32(a,v) out_arch(l,be32,a,v) | |
132 | #define out_be16(a,v) out_arch(w,be16,a,v) | |
133 | ||
134 | #define in_be32(a) in_arch(l,be32,a) | |
135 | #define in_be16(a) in_arch(w,be16,a) | |
136 | ||
137 | #define out_8(a,v) writeb(v,a) | |
138 | #define in_8(a) readb(a) | |
139 | ||
140 | #define clrbits(type, addr, clear) \ | |
141 | out_##type((addr), in_##type(addr) & ~(clear)) | |
142 | ||
143 | #define setbits(type, addr, set) \ | |
144 | out_##type((addr), in_##type(addr) | (set)) | |
145 | ||
146 | #define clrsetbits(type, addr, clear, set) \ | |
147 | out_##type((addr), (in_##type(addr) & ~(clear)) | (set)) | |
148 | ||
149 | #define clrbits_be32(addr, clear) clrbits(be32, addr, clear) | |
150 | #define setbits_be32(addr, set) setbits(be32, addr, set) | |
151 | #define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set) | |
152 | ||
153 | #define clrbits_le32(addr, clear) clrbits(le32, addr, clear) | |
154 | #define setbits_le32(addr, set) setbits(le32, addr, set) | |
155 | #define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set) | |
156 | ||
157 | #define clrbits_be16(addr, clear) clrbits(be16, addr, clear) | |
158 | #define setbits_be16(addr, set) setbits(be16, addr, set) | |
159 | #define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set) | |
160 | ||
161 | #define clrbits_le16(addr, clear) clrbits(le16, addr, clear) | |
162 | #define setbits_le16(addr, set) setbits(le16, addr, set) | |
163 | #define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set) | |
164 | ||
165 | #define clrbits_8(addr, clear) clrbits(8, addr, clear) | |
166 | #define setbits_8(addr, set) setbits(8, addr, set) | |
167 | #define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set) | |
168 | ||
169 | static inline void _insw(volatile u16 *port, void *buf, int ns) | |
170 | { | |
171 | } | |
172 | ||
173 | static inline void _outsw(volatile u16 *port, const void *buf, int ns) | |
174 | { | |
175 | } | |
176 | ||
177 | #define insw(port, buf, ns) _insw((u16 *)port, buf, ns) | |
178 | #define outsw(port, buf, ns) _outsw((u16 *)port, buf, ns) | |
179 | ||
180 | #include <iotrace.h> | |
181 | #include <asm/types.h> | |
182 | ||
183 | #endif |