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20#ifndef __ASM_ARM_IO_H
21#define __ASM_ARM_IO_H
22
23#ifdef __KERNEL__
24
25#include <linux/types.h>
26#include <linux/kernel.h>
27#include <asm/byteorder.h>
28#include <asm/memory.h>
29#include <asm/barriers.h>
30#if 0
31#include <asm/arch/hardware.h>
32#endif
33
34static inline void sync(void)
35{
36}
37
38
39
40
41
42
43#define __arch_getb(a) (*(volatile unsigned char *)(a))
44#define __arch_getw(a) (*(volatile unsigned short *)(a))
45#define __arch_getl(a) (*(volatile unsigned int *)(a))
46#define __arch_getq(a) (*(volatile unsigned long long *)(a))
47
48#define __arch_putb(v,a) (*(volatile unsigned char *)(a) = (v))
49#define __arch_putw(v,a) (*(volatile unsigned short *)(a) = (v))
50#define __arch_putl(v,a) (*(volatile unsigned int *)(a) = (v))
51#define __arch_putq(v,a) (*(volatile unsigned long long *)(a) = (v))
52
53static inline void __raw_writesb(unsigned long addr, const void *data,
54 int bytelen)
55{
56 uint8_t *buf = (uint8_t *)data;
57 while(bytelen--)
58 __arch_putb(*buf++, addr);
59}
60
61static inline void __raw_writesw(unsigned long addr, const void *data,
62 int wordlen)
63{
64 uint16_t *buf = (uint16_t *)data;
65 while(wordlen--)
66 __arch_putw(*buf++, addr);
67}
68
69static inline void __raw_writesl(unsigned long addr, const void *data,
70 int longlen)
71{
72 uint32_t *buf = (uint32_t *)data;
73 while(longlen--)
74 __arch_putl(*buf++, addr);
75}
76
77static inline void __raw_readsb(unsigned long addr, void *data, int bytelen)
78{
79 uint8_t *buf = (uint8_t *)data;
80 while(bytelen--)
81 *buf++ = __arch_getb(addr);
82}
83
84static inline void __raw_readsw(unsigned long addr, void *data, int wordlen)
85{
86 uint16_t *buf = (uint16_t *)data;
87 while(wordlen--)
88 *buf++ = __arch_getw(addr);
89}
90
91static inline void __raw_readsl(unsigned long addr, void *data, int longlen)
92{
93 uint32_t *buf = (uint32_t *)data;
94 while(longlen--)
95 *buf++ = __arch_getl(addr);
96}
97
98#define __raw_writeb(v,a) __arch_putb(v,a)
99#define __raw_writew(v,a) __arch_putw(v,a)
100#define __raw_writel(v,a) __arch_putl(v,a)
101#define __raw_writeq(v,a) __arch_putq(v,a)
102
103#define __raw_readb(a) __arch_getb(a)
104#define __raw_readw(a) __arch_getw(a)
105#define __raw_readl(a) __arch_getl(a)
106#define __raw_readq(a) __arch_getq(a)
107
108
109
110
111
112#define mb() dsb()
113#define rmb() dsb()
114#define wmb() dsb()
115#define __iormb() dmb()
116#define __iowmb() dmb()
117
118#define smp_processor_id() 0
119
120#define writeb(v,c) ({ u8 __v = v; __iowmb(); __arch_putb(__v,c); __v; })
121#define writew(v,c) ({ u16 __v = v; __iowmb(); __arch_putw(__v,c); __v; })
122#define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v; })
123#define writeq(v,c) ({ u64 __v = v; __iowmb(); __arch_putq(__v,c); __v; })
124
125#define readb(c) ({ u8 __v = __arch_getb(c); __iormb(); __v; })
126#define readw(c) ({ u16 __v = __arch_getw(c); __iormb(); __v; })
127#define readl(c) ({ u32 __v = __arch_getl(c); __iormb(); __v; })
128#define readq(c) ({ u64 __v = __arch_getq(c); __iormb(); __v; })
129
130
131
132
133
134
135#define readb_relaxed(c) ({ u8 __r = __raw_readb(c); __r; })
136#define readw_relaxed(c) ({ u16 __r = le16_to_cpu((__force __le16) \
137 __raw_readw(c)); __r; })
138#define readl_relaxed(c) ({ u32 __r = le32_to_cpu((__force __le32) \
139 __raw_readl(c)); __r; })
140#define readq_relaxed(c) ({ u64 __r = le64_to_cpu((__force __le64) \
141 __raw_readq(c)); __r; })
142
143#define writeb_relaxed(v, c) ((void)__raw_writeb((v), (c)))
144#define writew_relaxed(v, c) ((void)__raw_writew((__force u16) \
145 cpu_to_le16(v), (c)))
146#define writel_relaxed(v, c) ((void)__raw_writel((__force u32) \
147 cpu_to_le32(v), (c)))
148#define writeq_relaxed(v, c) ((void)__raw_writeq((__force u64) \
149 cpu_to_le64(v), (c)))
150
151
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153
154
155
156#define __raw_base_writeb(val,base,off) __arch_base_putb(val,base,off)
157#define __raw_base_writew(val,base,off) __arch_base_putw(val,base,off)
158#define __raw_base_writel(val,base,off) __arch_base_putl(val,base,off)
159
160#define __raw_base_readb(base,off) __arch_base_getb(base,off)
161#define __raw_base_readw(base,off) __arch_base_getw(base,off)
162#define __raw_base_readl(base,off) __arch_base_getl(base,off)
163
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170
171
172#define out_arch(type,endian,a,v) __raw_write##type(cpu_to_##endian(v),a)
173#define in_arch(type,endian,a) endian##_to_cpu(__raw_read##type(a))
174
175#define out_le64(a,v) out_arch(q,le64,a,v)
176#define out_le32(a,v) out_arch(l,le32,a,v)
177#define out_le16(a,v) out_arch(w,le16,a,v)
178
179#define in_le64(a) in_arch(q,le64,a)
180#define in_le32(a) in_arch(l,le32,a)
181#define in_le16(a) in_arch(w,le16,a)
182
183#define out_be64(a,v) out_arch(l,be64,a,v)
184#define out_be32(a,v) out_arch(l,be32,a,v)
185#define out_be16(a,v) out_arch(w,be16,a,v)
186
187#define in_be64(a) in_arch(l,be64,a)
188#define in_be32(a) in_arch(l,be32,a)
189#define in_be16(a) in_arch(w,be16,a)
190
191#define out_64(a,v) __raw_writeq(v,a)
192#define out_32(a,v) __raw_writel(v,a)
193#define out_16(a,v) __raw_writew(v,a)
194#define out_8(a,v) __raw_writeb(v,a)
195
196#define in_64(a) __raw_readq(a)
197#define in_32(a) __raw_readl(a)
198#define in_16(a) __raw_readw(a)
199#define in_8(a) __raw_readb(a)
200
201#define clrbits(type, addr, clear) \
202 out_##type((addr), in_##type(addr) & ~(clear))
203
204#define setbits(type, addr, set) \
205 out_##type((addr), in_##type(addr) | (set))
206
207#define clrsetbits(type, addr, clear, set) \
208 out_##type((addr), (in_##type(addr) & ~(clear)) | (set))
209
210#define clrbits_be32(addr, clear) clrbits(be32, addr, clear)
211#define setbits_be32(addr, set) setbits(be32, addr, set)
212#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set)
213
214#define clrbits_le32(addr, clear) clrbits(le32, addr, clear)
215#define setbits_le32(addr, set) setbits(le32, addr, set)
216#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set)
217
218#define clrbits_32(addr, clear) clrbits(32, addr, clear)
219#define setbits_32(addr, set) setbits(32, addr, set)
220#define clrsetbits_32(addr, clear, set) clrsetbits(32, addr, clear, set)
221
222#define clrbits_be16(addr, clear) clrbits(be16, addr, clear)
223#define setbits_be16(addr, set) setbits(be16, addr, set)
224#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set)
225
226#define clrbits_le16(addr, clear) clrbits(le16, addr, clear)
227#define setbits_le16(addr, set) setbits(le16, addr, set)
228#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set)
229
230#define clrbits_16(addr, clear) clrbits(16, addr, clear)
231#define setbits_16(addr, set) setbits(16, addr, set)
232#define clrsetbits_16(addr, clear, set) clrsetbits(16, addr, clear, set)
233
234#define clrbits_8(addr, clear) clrbits(8, addr, clear)
235#define setbits_8(addr, set) setbits(8, addr, set)
236#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
237
238#define clrbits_be64(addr, clear) clrbits(be64, addr, clear)
239#define setbits_be64(addr, set) setbits(be64, addr, set)
240#define clrsetbits_be64(addr, clear, set) clrsetbits(be64, addr, clear, set)
241
242#define clrbits_le64(addr, clear) clrbits(le64, addr, clear)
243#define setbits_le64(addr, set) setbits(le64, addr, set)
244#define clrsetbits_le64(addr, clear, set) clrsetbits(le64, addr, clear, set)
245
246#define clrbits_64(addr, clear) clrbits(64, addr, clear)
247#define setbits_64(addr, set) setbits(64, addr, set)
248#define clrsetbits_64(addr, clear, set) clrsetbits(64, addr, clear, set)
249
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252
253#if 0
254#include <asm/arch/io.h>
255#endif
256
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281#ifdef __io
282#define outb(v,p) __raw_writeb(v,__io(p))
283#define outw(v,p) __raw_writew(cpu_to_le16(v),__io(p))
284#define outl(v,p) __raw_writel(cpu_to_le32(v),__io(p))
285
286#define inb(p) ({ unsigned int __v = __raw_readb(__io(p)); __v; })
287#define inw(p) ({ unsigned int __v = le16_to_cpu(__raw_readw(__io(p))); __v; })
288#define inl(p) ({ unsigned int __v = le32_to_cpu(__raw_readl(__io(p))); __v; })
289
290#define outsb(p,d,l) __raw_writesb(__io(p),d,l)
291#define outsw(p,d,l) __raw_writesw(__io(p),d,l)
292#define outsl(p,d,l) __raw_writesl(__io(p),d,l)
293
294#define insb(p,d,l) __raw_readsb(__io(p),d,l)
295#define insw(p,d,l) __raw_readsw(__io(p),d,l)
296#define insl(p,d,l) __raw_readsl(__io(p),d,l)
297#endif
298
299#define outb_p(val,port) outb((val),(port))
300#define outw_p(val,port) outw((val),(port))
301#define outl_p(val,port) outl((val),(port))
302#define inb_p(port) inb((port))
303#define inw_p(port) inw((port))
304#define inl_p(port) inl((port))
305
306#define outsb_p(port,from,len) outsb(port,from,len)
307#define outsw_p(port,from,len) outsw(port,from,len)
308#define outsl_p(port,from,len) outsl(port,from,len)
309#define insb_p(port,to,len) insb(port,to,len)
310#define insw_p(port,to,len) insw(port,to,len)
311#define insl_p(port,to,len) insl(port,to,len)
312
313#define writesl(a, d, s) __raw_writesl((unsigned long)a, d, s)
314#define readsl(a, d, s) __raw_readsl((unsigned long)a, d, s)
315#define writesw(a, d, s) __raw_writesw((unsigned long)a, d, s)
316#define readsw(a, d, s) __raw_readsw((unsigned long)a, d, s)
317#define writesb(a, d, s) __raw_writesb((unsigned long)a, d, s)
318#define readsb(a, d, s) __raw_readsb((unsigned long)a, d, s)
319
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325
326extern void *consistent_alloc(int gfp, size_t size, dma_addr_t *handle);
327extern void consistent_free(void *vaddr, size_t size, dma_addr_t handle);
328extern void consistent_sync(void *vaddr, size_t size, int rw);
329
330
331
332
333extern void _memcpy_fromio(void *, unsigned long, size_t);
334extern void _memcpy_toio(unsigned long, const void *, size_t);
335extern void _memset_io(unsigned long, int, size_t);
336
337extern void __readwrite_bug(const char *fn);
338
339
340#ifdef CONFIG_ARM64
341#include <cpu_func.h>
342
343
344
345static inline
346void __memcpy_fromio(void *to, const volatile void __iomem *from, size_t count)
347{
348 while (count && !IS_ALIGNED((unsigned long)from, 8)) {
349 *(u8 *)to = __raw_readb(from);
350 from++;
351 to++;
352 count--;
353 }
354
355 if (mmu_status()) {
356 while (count >= 8) {
357 *(u64 *)to = __raw_readq(from);
358 from += 8;
359 to += 8;
360 count -= 8;
361 }
362 }
363
364 while (count) {
365 *(u8 *)to = __raw_readb(from);
366 from++;
367 to++;
368 count--;
369 }
370}
371
372
373
374
375static inline
376void __memcpy_toio(volatile void __iomem *to, const void *from, size_t count)
377{
378 while (count && !IS_ALIGNED((unsigned long)to, 8)) {
379 __raw_writeb(*(u8 *)from, to);
380 from++;
381 to++;
382 count--;
383 }
384
385 if (mmu_status()) {
386 while (count >= 8) {
387 __raw_writeq(*(u64 *)from, to);
388 from += 8;
389 to += 8;
390 count -= 8;
391 }
392 }
393
394 while (count) {
395 __raw_writeb(*(u8 *)from, to);
396 from++;
397 to++;
398 count--;
399 }
400}
401
402
403
404
405static inline
406void __memset_io(volatile void __iomem *dst, int c, size_t count)
407{
408 u64 qc = (u8)c;
409
410 qc |= qc << 8;
411 qc |= qc << 16;
412 qc |= qc << 32;
413
414 while (count && !IS_ALIGNED((unsigned long)dst, 8)) {
415 __raw_writeb(c, dst);
416 dst++;
417 count--;
418 }
419
420 while (count >= 8) {
421 __raw_writeq(qc, dst);
422 dst += 8;
423 count -= 8;
424 }
425
426 while (count) {
427 __raw_writeb(c, dst);
428 dst++;
429 count--;
430 }
431}
432#endif
433
434#ifdef CONFIG_ARM64
435#define memset_io(a, b, c) __memset_io((a), (b), (c))
436#define memcpy_fromio(a, b, c) __memcpy_fromio((a), (b), (c))
437#define memcpy_toio(a, b, c) __memcpy_toio((a), (b), (c))
438#else
439#define memset_io(a, b, c) memset((void *)(a), (b), (c))
440#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c))
441#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c))
442#endif
443
444
445
446
447
448#ifdef __mem_isa
449
450#define isa_readb(addr) __raw_readb(__mem_isa(addr))
451#define isa_readw(addr) __raw_readw(__mem_isa(addr))
452#define isa_readl(addr) __raw_readl(__mem_isa(addr))
453#define isa_writeb(val,addr) __raw_writeb(val,__mem_isa(addr))
454#define isa_writew(val,addr) __raw_writew(val,__mem_isa(addr))
455#define isa_writel(val,addr) __raw_writel(val,__mem_isa(addr))
456#define isa_memset_io(a,b,c) _memset_io(__mem_isa(a),(b),(c))
457#define isa_memcpy_fromio(a,b,c) _memcpy_fromio((a),__mem_isa(b),(c))
458#define isa_memcpy_toio(a,b,c) _memcpy_toio(__mem_isa((a)),(b),(c))
459
460#define isa_eth_io_copy_and_sum(a,b,c,d) \
461 eth_copy_and_sum((a),__mem_isa(b),(c),(d))
462
463static inline int
464isa_check_signature(unsigned long io_addr, const unsigned char *signature,
465 int length)
466{
467 int retval = 0;
468 do {
469 if (isa_readb(io_addr) != *signature)
470 goto out;
471 io_addr++;
472 signature++;
473 length--;
474 } while (length);
475 retval = 1;
476out:
477 return retval;
478}
479
480#else
481
482#define isa_readb(addr) (__readwrite_bug("isa_readb"),0)
483#define isa_readw(addr) (__readwrite_bug("isa_readw"),0)
484#define isa_readl(addr) (__readwrite_bug("isa_readl"),0)
485#define isa_writeb(val,addr) __readwrite_bug("isa_writeb")
486#define isa_writew(val,addr) __readwrite_bug("isa_writew")
487#define isa_writel(val,addr) __readwrite_bug("isa_writel")
488#define isa_memset_io(a,b,c) __readwrite_bug("isa_memset_io")
489#define isa_memcpy_fromio(a,b,c) __readwrite_bug("isa_memcpy_fromio")
490#define isa_memcpy_toio(a,b,c) __readwrite_bug("isa_memcpy_toio")
491
492#define isa_eth_io_copy_and_sum(a,b,c,d) \
493 __readwrite_bug("isa_eth_io_copy_and_sum")
494
495#define isa_check_signature(io,sig,len) (0)
496
497#endif
498#endif
499
500#include <asm-generic/io.h>
501#include <iotrace.h>
502
503#endif
504