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1da177e4 LT |
1 | #ifndef __SPARC64_IO_H |
2 | #define __SPARC64_IO_H | |
3 | ||
4 | #include <linux/kernel.h> | |
5 | #include <linux/compiler.h> | |
6 | #include <linux/types.h> | |
7 | ||
8 | #include <asm/page.h> /* IO address mapping routines need this */ | |
9 | #include <asm/system.h> | |
10 | #include <asm/asi.h> | |
11 | ||
12 | /* PC crapola... */ | |
13 | #define __SLOW_DOWN_IO do { } while (0) | |
14 | #define SLOW_DOWN_IO do { } while (0) | |
15 | ||
1da177e4 LT |
16 | /* BIO layer definitions. */ |
17 | extern unsigned long kern_base, kern_size; | |
18 | #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) | |
19 | #define BIO_VMERGE_BOUNDARY 8192 | |
20 | ||
d979f179 | 21 | static inline u8 _inb(unsigned long addr) |
1da177e4 LT |
22 | { |
23 | u8 ret; | |
24 | ||
25 | __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_inb */" | |
26 | : "=r" (ret) | |
27 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
28 | ||
29 | return ret; | |
30 | } | |
31 | ||
d979f179 | 32 | static inline u16 _inw(unsigned long addr) |
1da177e4 LT |
33 | { |
34 | u16 ret; | |
35 | ||
36 | __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_inw */" | |
37 | : "=r" (ret) | |
38 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
39 | ||
40 | return ret; | |
41 | } | |
42 | ||
d979f179 | 43 | static inline u32 _inl(unsigned long addr) |
1da177e4 LT |
44 | { |
45 | u32 ret; | |
46 | ||
47 | __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_inl */" | |
48 | : "=r" (ret) | |
49 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
50 | ||
51 | return ret; | |
52 | } | |
53 | ||
d979f179 | 54 | static inline void _outb(u8 b, unsigned long addr) |
1da177e4 LT |
55 | { |
56 | __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_outb */" | |
57 | : /* no outputs */ | |
58 | : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
59 | } | |
60 | ||
d979f179 | 61 | static inline void _outw(u16 w, unsigned long addr) |
1da177e4 LT |
62 | { |
63 | __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_outw */" | |
64 | : /* no outputs */ | |
65 | : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
66 | } | |
67 | ||
d979f179 | 68 | static inline void _outl(u32 l, unsigned long addr) |
1da177e4 LT |
69 | { |
70 | __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_outl */" | |
71 | : /* no outputs */ | |
72 | : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
73 | } | |
74 | ||
75 | #define inb(__addr) (_inb((unsigned long)(__addr))) | |
76 | #define inw(__addr) (_inw((unsigned long)(__addr))) | |
77 | #define inl(__addr) (_inl((unsigned long)(__addr))) | |
78 | #define outb(__b, __addr) (_outb((u8)(__b), (unsigned long)(__addr))) | |
79 | #define outw(__w, __addr) (_outw((u16)(__w), (unsigned long)(__addr))) | |
80 | #define outl(__l, __addr) (_outl((u32)(__l), (unsigned long)(__addr))) | |
81 | ||
82 | #define inb_p(__addr) inb(__addr) | |
83 | #define outb_p(__b, __addr) outb(__b, __addr) | |
84 | #define inw_p(__addr) inw(__addr) | |
85 | #define outw_p(__w, __addr) outw(__w, __addr) | |
86 | #define inl_p(__addr) inl(__addr) | |
87 | #define outl_p(__l, __addr) outl(__l, __addr) | |
88 | ||
8a36895c DM |
89 | extern void outsb(unsigned long, const void *, unsigned long); |
90 | extern void outsw(unsigned long, const void *, unsigned long); | |
91 | extern void outsl(unsigned long, const void *, unsigned long); | |
92 | extern void insb(unsigned long, void *, unsigned long); | |
93 | extern void insw(unsigned long, void *, unsigned long); | |
94 | extern void insl(unsigned long, void *, unsigned long); | |
95 | ||
96 | static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count) | |
97 | { | |
98 | insb((unsigned long __force)port, buf, count); | |
99 | } | |
100 | static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count) | |
101 | { | |
102 | insw((unsigned long __force)port, buf, count); | |
103 | } | |
104 | ||
105 | static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count) | |
106 | { | |
107 | insl((unsigned long __force)port, buf, count); | |
108 | } | |
109 | ||
110 | static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count) | |
111 | { | |
112 | outsb((unsigned long __force)port, buf, count); | |
113 | } | |
114 | ||
115 | static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count) | |
116 | { | |
117 | outsw((unsigned long __force)port, buf, count); | |
118 | } | |
119 | ||
120 | static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count) | |
121 | { | |
122 | outsl((unsigned long __force)port, buf, count); | |
123 | } | |
1da177e4 LT |
124 | |
125 | /* Memory functions, same as I/O accesses on Ultra. */ | |
126 | static inline u8 _readb(const volatile void __iomem *addr) | |
127 | { u8 ret; | |
128 | ||
129 | __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_readb */" | |
130 | : "=r" (ret) | |
131 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
132 | return ret; | |
133 | } | |
134 | ||
135 | static inline u16 _readw(const volatile void __iomem *addr) | |
136 | { u16 ret; | |
137 | ||
138 | __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_readw */" | |
139 | : "=r" (ret) | |
140 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
141 | ||
142 | return ret; | |
143 | } | |
144 | ||
145 | static inline u32 _readl(const volatile void __iomem *addr) | |
146 | { u32 ret; | |
147 | ||
148 | __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_readl */" | |
149 | : "=r" (ret) | |
150 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
151 | ||
152 | return ret; | |
153 | } | |
154 | ||
155 | static inline u64 _readq(const volatile void __iomem *addr) | |
156 | { u64 ret; | |
157 | ||
158 | __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_readq */" | |
159 | : "=r" (ret) | |
160 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
161 | ||
162 | return ret; | |
163 | } | |
164 | ||
165 | static inline void _writeb(u8 b, volatile void __iomem *addr) | |
166 | { | |
167 | __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_writeb */" | |
168 | : /* no outputs */ | |
169 | : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
170 | } | |
171 | ||
172 | static inline void _writew(u16 w, volatile void __iomem *addr) | |
173 | { | |
174 | __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_writew */" | |
175 | : /* no outputs */ | |
176 | : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
177 | } | |
178 | ||
179 | static inline void _writel(u32 l, volatile void __iomem *addr) | |
180 | { | |
181 | __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_writel */" | |
182 | : /* no outputs */ | |
183 | : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
184 | } | |
185 | ||
186 | static inline void _writeq(u64 q, volatile void __iomem *addr) | |
187 | { | |
188 | __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_writeq */" | |
189 | : /* no outputs */ | |
190 | : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)); | |
191 | } | |
192 | ||
193 | #define readb(__addr) _readb(__addr) | |
194 | #define readw(__addr) _readw(__addr) | |
195 | #define readl(__addr) _readl(__addr) | |
196 | #define readq(__addr) _readq(__addr) | |
197 | #define readb_relaxed(__addr) _readb(__addr) | |
198 | #define readw_relaxed(__addr) _readw(__addr) | |
199 | #define readl_relaxed(__addr) _readl(__addr) | |
200 | #define readq_relaxed(__addr) _readq(__addr) | |
201 | #define writeb(__b, __addr) _writeb(__b, __addr) | |
202 | #define writew(__w, __addr) _writew(__w, __addr) | |
203 | #define writel(__l, __addr) _writel(__l, __addr) | |
204 | #define writeq(__q, __addr) _writeq(__q, __addr) | |
205 | ||
206 | /* Now versions without byte-swapping. */ | |
d979f179 | 207 | static inline u8 _raw_readb(unsigned long addr) |
1da177e4 LT |
208 | { |
209 | u8 ret; | |
210 | ||
211 | __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_raw_readb */" | |
212 | : "=r" (ret) | |
213 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
214 | ||
215 | return ret; | |
216 | } | |
217 | ||
d979f179 | 218 | static inline u16 _raw_readw(unsigned long addr) |
1da177e4 LT |
219 | { |
220 | u16 ret; | |
221 | ||
222 | __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_raw_readw */" | |
223 | : "=r" (ret) | |
224 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
225 | ||
226 | return ret; | |
227 | } | |
228 | ||
d979f179 | 229 | static inline u32 _raw_readl(unsigned long addr) |
1da177e4 LT |
230 | { |
231 | u32 ret; | |
232 | ||
233 | __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_raw_readl */" | |
234 | : "=r" (ret) | |
235 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
236 | ||
237 | return ret; | |
238 | } | |
239 | ||
d979f179 | 240 | static inline u64 _raw_readq(unsigned long addr) |
1da177e4 LT |
241 | { |
242 | u64 ret; | |
243 | ||
244 | __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_raw_readq */" | |
245 | : "=r" (ret) | |
246 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
247 | ||
248 | return ret; | |
249 | } | |
250 | ||
d979f179 | 251 | static inline void _raw_writeb(u8 b, unsigned long addr) |
1da177e4 LT |
252 | { |
253 | __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_raw_writeb */" | |
254 | : /* no outputs */ | |
255 | : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
256 | } | |
257 | ||
d979f179 | 258 | static inline void _raw_writew(u16 w, unsigned long addr) |
1da177e4 LT |
259 | { |
260 | __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_raw_writew */" | |
261 | : /* no outputs */ | |
262 | : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
263 | } | |
264 | ||
d979f179 | 265 | static inline void _raw_writel(u32 l, unsigned long addr) |
1da177e4 LT |
266 | { |
267 | __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_raw_writel */" | |
268 | : /* no outputs */ | |
269 | : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
270 | } | |
271 | ||
d979f179 | 272 | static inline void _raw_writeq(u64 q, unsigned long addr) |
1da177e4 LT |
273 | { |
274 | __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_raw_writeq */" | |
275 | : /* no outputs */ | |
276 | : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
277 | } | |
278 | ||
279 | #define __raw_readb(__addr) (_raw_readb((unsigned long)(__addr))) | |
280 | #define __raw_readw(__addr) (_raw_readw((unsigned long)(__addr))) | |
281 | #define __raw_readl(__addr) (_raw_readl((unsigned long)(__addr))) | |
282 | #define __raw_readq(__addr) (_raw_readq((unsigned long)(__addr))) | |
283 | #define __raw_writeb(__b, __addr) (_raw_writeb((u8)(__b), (unsigned long)(__addr))) | |
284 | #define __raw_writew(__w, __addr) (_raw_writew((u16)(__w), (unsigned long)(__addr))) | |
285 | #define __raw_writel(__l, __addr) (_raw_writel((u32)(__l), (unsigned long)(__addr))) | |
286 | #define __raw_writeq(__q, __addr) (_raw_writeq((u64)(__q), (unsigned long)(__addr))) | |
287 | ||
288 | /* Valid I/O Space regions are anywhere, because each PCI bus supported | |
289 | * can live in an arbitrary area of the physical address range. | |
290 | */ | |
291 | #define IO_SPACE_LIMIT 0xffffffffffffffffUL | |
292 | ||
293 | /* Now, SBUS variants, only difference from PCI is that we do | |
294 | * not use little-endian ASIs. | |
295 | */ | |
296 | static inline u8 _sbus_readb(const volatile void __iomem *addr) | |
297 | { | |
298 | u8 ret; | |
299 | ||
300 | __asm__ __volatile__("lduba\t[%1] %2, %0\t/* sbus_readb */" | |
301 | : "=r" (ret) | |
302 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
303 | ||
304 | return ret; | |
305 | } | |
306 | ||
307 | static inline u16 _sbus_readw(const volatile void __iomem *addr) | |
308 | { | |
309 | u16 ret; | |
310 | ||
311 | __asm__ __volatile__("lduha\t[%1] %2, %0\t/* sbus_readw */" | |
312 | : "=r" (ret) | |
313 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
314 | ||
315 | return ret; | |
316 | } | |
317 | ||
318 | static inline u32 _sbus_readl(const volatile void __iomem *addr) | |
319 | { | |
320 | u32 ret; | |
321 | ||
322 | __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* sbus_readl */" | |
323 | : "=r" (ret) | |
324 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
325 | ||
326 | return ret; | |
327 | } | |
328 | ||
329 | static inline u64 _sbus_readq(const volatile void __iomem *addr) | |
330 | { | |
331 | u64 ret; | |
332 | ||
333 | __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* sbus_readq */" | |
334 | : "=r" (ret) | |
335 | : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
336 | ||
337 | return ret; | |
338 | } | |
339 | ||
340 | static inline void _sbus_writeb(u8 b, volatile void __iomem *addr) | |
341 | { | |
342 | __asm__ __volatile__("stba\t%r0, [%1] %2\t/* sbus_writeb */" | |
343 | : /* no outputs */ | |
344 | : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
345 | } | |
346 | ||
347 | static inline void _sbus_writew(u16 w, volatile void __iomem *addr) | |
348 | { | |
349 | __asm__ __volatile__("stha\t%r0, [%1] %2\t/* sbus_writew */" | |
350 | : /* no outputs */ | |
351 | : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
352 | } | |
353 | ||
354 | static inline void _sbus_writel(u32 l, volatile void __iomem *addr) | |
355 | { | |
356 | __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* sbus_writel */" | |
357 | : /* no outputs */ | |
358 | : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
359 | } | |
360 | ||
361 | static inline void _sbus_writeq(u64 l, volatile void __iomem *addr) | |
362 | { | |
363 | __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* sbus_writeq */" | |
364 | : /* no outputs */ | |
365 | : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); | |
366 | } | |
367 | ||
368 | #define sbus_readb(__addr) _sbus_readb(__addr) | |
369 | #define sbus_readw(__addr) _sbus_readw(__addr) | |
370 | #define sbus_readl(__addr) _sbus_readl(__addr) | |
371 | #define sbus_readq(__addr) _sbus_readq(__addr) | |
372 | #define sbus_writeb(__b, __addr) _sbus_writeb(__b, __addr) | |
373 | #define sbus_writew(__w, __addr) _sbus_writew(__w, __addr) | |
374 | #define sbus_writel(__l, __addr) _sbus_writel(__l, __addr) | |
375 | #define sbus_writeq(__l, __addr) _sbus_writeq(__l, __addr) | |
376 | ||
377 | static inline void _sbus_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n) | |
378 | { | |
379 | while(n--) { | |
380 | sbus_writeb(c, dst); | |
381 | dst++; | |
382 | } | |
383 | } | |
384 | ||
385 | #define sbus_memset_io(d,c,sz) _sbus_memset_io(d,c,sz) | |
386 | ||
387 | static inline void | |
388 | _memset_io(volatile void __iomem *dst, int c, __kernel_size_t n) | |
389 | { | |
390 | volatile void __iomem *d = dst; | |
391 | ||
392 | while (n--) { | |
393 | writeb(c, d); | |
394 | d++; | |
395 | } | |
396 | } | |
397 | ||
398 | #define memset_io(d,c,sz) _memset_io(d,c,sz) | |
399 | ||
400 | static inline void | |
401 | _memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n) | |
402 | { | |
403 | char *d = dst; | |
404 | ||
405 | while (n--) { | |
406 | char tmp = readb(src); | |
407 | *d++ = tmp; | |
408 | src++; | |
409 | } | |
410 | } | |
411 | ||
412 | #define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz) | |
413 | ||
414 | static inline void | |
415 | _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n) | |
416 | { | |
417 | const char *s = src; | |
418 | volatile void __iomem *d = dst; | |
419 | ||
420 | while (n--) { | |
421 | char tmp = *s++; | |
422 | writeb(tmp, d); | |
423 | d++; | |
424 | } | |
425 | } | |
426 | ||
427 | #define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz) | |
428 | ||
1da177e4 LT |
429 | #define mmiowb() |
430 | ||
431 | #ifdef __KERNEL__ | |
432 | ||
433 | /* On sparc64 we have the whole physical IO address space accessible | |
434 | * using physically addressed loads and stores, so this does nothing. | |
435 | */ | |
436 | static inline void __iomem *ioremap(unsigned long offset, unsigned long size) | |
437 | { | |
438 | return (void __iomem *)offset; | |
439 | } | |
440 | ||
441 | #define ioremap_nocache(X,Y) ioremap((X),(Y)) | |
442 | ||
443 | static inline void iounmap(volatile void __iomem *addr) | |
444 | { | |
445 | } | |
446 | ||
447 | #define ioread8(X) readb(X) | |
448 | #define ioread16(X) readw(X) | |
449 | #define ioread32(X) readl(X) | |
450 | #define iowrite8(val,X) writeb(val,X) | |
451 | #define iowrite16(val,X) writew(val,X) | |
452 | #define iowrite32(val,X) writel(val,X) | |
453 | ||
454 | /* Create a virtual mapping cookie for an IO port range */ | |
455 | extern void __iomem *ioport_map(unsigned long port, unsigned int nr); | |
456 | extern void ioport_unmap(void __iomem *); | |
457 | ||
458 | /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */ | |
459 | struct pci_dev; | |
460 | extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); | |
461 | extern void pci_iounmap(struct pci_dev *dev, void __iomem *); | |
462 | ||
463 | /* Similarly for SBUS. */ | |
464 | #define sbus_ioremap(__res, __offset, __size, __name) \ | |
465 | ({ unsigned long __ret; \ | |
466 | __ret = (__res)->start + (((__res)->flags & 0x1ffUL) << 32UL); \ | |
467 | __ret += (unsigned long) (__offset); \ | |
468 | if (! request_region((__ret), (__size), (__name))) \ | |
469 | __ret = 0UL; \ | |
470 | (void __iomem *) __ret; \ | |
471 | }) | |
472 | ||
473 | #define sbus_iounmap(__addr, __size) \ | |
474 | release_region((unsigned long)(__addr), (__size)) | |
475 | ||
1da177e4 LT |
476 | /* |
477 | * Convert a physical pointer to a virtual kernel pointer for /dev/mem | |
478 | * access | |
479 | */ | |
480 | #define xlate_dev_mem_ptr(p) __va(p) | |
481 | ||
482 | /* | |
483 | * Convert a virtual cached pointer to an uncached pointer | |
484 | */ | |
485 | #define xlate_dev_kmem_ptr(p) p | |
486 | ||
487 | #endif | |
488 | ||
489 | #endif /* !(__SPARC64_IO_H) */ |