1#ifndef _ASM_IA64_IO_H
2#define _ASM_IA64_IO_H
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22#include <asm/unaligned.h>
23
24
25#define __SLOW_DOWN_IO do { } while (0)
26#define SLOW_DOWN_IO do { } while (0)
27
28#define __IA64_UNCACHED_OFFSET RGN_BASE(RGN_UNCACHED)
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33
34
35#define IO_SPACE_LIMIT 0xffffffffffffffffUL
36
37#define MAX_IO_SPACES_BITS 8
38#define MAX_IO_SPACES (1UL << MAX_IO_SPACES_BITS)
39#define IO_SPACE_BITS 24
40#define IO_SPACE_SIZE (1UL << IO_SPACE_BITS)
41
42#define IO_SPACE_NR(port) ((port) >> IO_SPACE_BITS)
43#define IO_SPACE_BASE(space) ((space) << IO_SPACE_BITS)
44#define IO_SPACE_PORT(port) ((port) & (IO_SPACE_SIZE - 1))
45
46#define IO_SPACE_SPARSE_ENCODING(p) ((((p) >> 2) << 12) | ((p) & 0xfff))
47
48struct io_space {
49 unsigned long mmio_base;
50 int sparse;
51};
52
53extern struct io_space io_space[];
54extern unsigned int num_io_spaces;
55
56# ifdef __KERNEL__
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65
66#define PIO_OFFSET (1UL << (MAX_IO_SPACES_BITS + IO_SPACE_BITS))
67#define PIO_MASK (PIO_OFFSET - 1)
68#define PIO_RESERVED __IA64_UNCACHED_OFFSET
69#define HAVE_ARCH_PIO_SIZE
70
71#include <asm/intrinsics.h>
72#include <asm/machvec.h>
73#include <asm/page.h>
74#include <asm-generic/iomap.h>
75
76
77
78
79static inline unsigned long
80virt_to_phys (volatile void *address)
81{
82 return (unsigned long) address - PAGE_OFFSET;
83}
84
85static inline void*
86phys_to_virt (unsigned long address)
87{
88 return (void *) (address + PAGE_OFFSET);
89}
90
91#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
92extern u64 kern_mem_attribute (unsigned long phys_addr, unsigned long size);
93extern int valid_phys_addr_range (phys_addr_t addr, size_t count);
94extern int valid_mmap_phys_addr_range (unsigned long pfn, size_t count);
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99
100#define bus_to_virt phys_to_virt
101#define virt_to_bus virt_to_phys
102#define page_to_bus page_to_phys
103
104# endif
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109
110#define __ia64_mf_a() ia64_mfa()
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120
121static inline void ___ia64_mmiowb(void)
122{
123 ia64_mfa();
124}
125
126static inline void*
127__ia64_mk_io_addr (unsigned long port)
128{
129 struct io_space *space;
130 unsigned long offset;
131
132 space = &io_space[IO_SPACE_NR(port)];
133 port = IO_SPACE_PORT(port);
134 if (space->sparse)
135 offset = IO_SPACE_SPARSE_ENCODING(port);
136 else
137 offset = port;
138
139 return (void *) (space->mmio_base | offset);
140}
141
142#define __ia64_inb ___ia64_inb
143#define __ia64_inw ___ia64_inw
144#define __ia64_inl ___ia64_inl
145#define __ia64_outb ___ia64_outb
146#define __ia64_outw ___ia64_outw
147#define __ia64_outl ___ia64_outl
148#define __ia64_readb ___ia64_readb
149#define __ia64_readw ___ia64_readw
150#define __ia64_readl ___ia64_readl
151#define __ia64_readq ___ia64_readq
152#define __ia64_readb_relaxed ___ia64_readb
153#define __ia64_readw_relaxed ___ia64_readw
154#define __ia64_readl_relaxed ___ia64_readl
155#define __ia64_readq_relaxed ___ia64_readq
156#define __ia64_writeb ___ia64_writeb
157#define __ia64_writew ___ia64_writew
158#define __ia64_writel ___ia64_writel
159#define __ia64_writeq ___ia64_writeq
160#define __ia64_mmiowb ___ia64_mmiowb
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169
170static inline unsigned int
171___ia64_inb (unsigned long port)
172{
173 volatile unsigned char *addr = __ia64_mk_io_addr(port);
174 unsigned char ret;
175
176 ret = *addr;
177 __ia64_mf_a();
178 return ret;
179}
180
181static inline unsigned int
182___ia64_inw (unsigned long port)
183{
184 volatile unsigned short *addr = __ia64_mk_io_addr(port);
185 unsigned short ret;
186
187 ret = *addr;
188 __ia64_mf_a();
189 return ret;
190}
191
192static inline unsigned int
193___ia64_inl (unsigned long port)
194{
195 volatile unsigned int *addr = __ia64_mk_io_addr(port);
196 unsigned int ret;
197
198 ret = *addr;
199 __ia64_mf_a();
200 return ret;
201}
202
203static inline void
204___ia64_outb (unsigned char val, unsigned long port)
205{
206 volatile unsigned char *addr = __ia64_mk_io_addr(port);
207
208 *addr = val;
209 __ia64_mf_a();
210}
211
212static inline void
213___ia64_outw (unsigned short val, unsigned long port)
214{
215 volatile unsigned short *addr = __ia64_mk_io_addr(port);
216
217 *addr = val;
218 __ia64_mf_a();
219}
220
221static inline void
222___ia64_outl (unsigned int val, unsigned long port)
223{
224 volatile unsigned int *addr = __ia64_mk_io_addr(port);
225
226 *addr = val;
227 __ia64_mf_a();
228}
229
230static inline void
231__insb (unsigned long port, void *dst, unsigned long count)
232{
233 unsigned char *dp = dst;
234
235 while (count--)
236 *dp++ = platform_inb(port);
237}
238
239static inline void
240__insw (unsigned long port, void *dst, unsigned long count)
241{
242 unsigned short *dp = dst;
243
244 while (count--)
245 put_unaligned(platform_inw(port), dp++);
246}
247
248static inline void
249__insl (unsigned long port, void *dst, unsigned long count)
250{
251 unsigned int *dp = dst;
252
253 while (count--)
254 put_unaligned(platform_inl(port), dp++);
255}
256
257static inline void
258__outsb (unsigned long port, const void *src, unsigned long count)
259{
260 const unsigned char *sp = src;
261
262 while (count--)
263 platform_outb(*sp++, port);
264}
265
266static inline void
267__outsw (unsigned long port, const void *src, unsigned long count)
268{
269 const unsigned short *sp = src;
270
271 while (count--)
272 platform_outw(get_unaligned(sp++), port);
273}
274
275static inline void
276__outsl (unsigned long port, const void *src, unsigned long count)
277{
278 const unsigned int *sp = src;
279
280 while (count--)
281 platform_outl(get_unaligned(sp++), port);
282}
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288
289#define __inb platform_inb
290#define __inw platform_inw
291#define __inl platform_inl
292#define __outb platform_outb
293#define __outw platform_outw
294#define __outl platform_outl
295#define __mmiowb platform_mmiowb
296
297#define inb(p) __inb(p)
298#define inw(p) __inw(p)
299#define inl(p) __inl(p)
300#define insb(p,d,c) __insb(p,d,c)
301#define insw(p,d,c) __insw(p,d,c)
302#define insl(p,d,c) __insl(p,d,c)
303#define outb(v,p) __outb(v,p)
304#define outw(v,p) __outw(v,p)
305#define outl(v,p) __outl(v,p)
306#define outsb(p,s,c) __outsb(p,s,c)
307#define outsw(p,s,c) __outsw(p,s,c)
308#define outsl(p,s,c) __outsl(p,s,c)
309#define mmiowb() __mmiowb()
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318
319static inline unsigned char
320___ia64_readb (const volatile void __iomem *addr)
321{
322 return *(volatile unsigned char __force *)addr;
323}
324
325static inline unsigned short
326___ia64_readw (const volatile void __iomem *addr)
327{
328 return *(volatile unsigned short __force *)addr;
329}
330
331static inline unsigned int
332___ia64_readl (const volatile void __iomem *addr)
333{
334 return *(volatile unsigned int __force *) addr;
335}
336
337static inline unsigned long
338___ia64_readq (const volatile void __iomem *addr)
339{
340 return *(volatile unsigned long __force *) addr;
341}
342
343static inline void
344__writeb (unsigned char val, volatile void __iomem *addr)
345{
346 *(volatile unsigned char __force *) addr = val;
347}
348
349static inline void
350__writew (unsigned short val, volatile void __iomem *addr)
351{
352 *(volatile unsigned short __force *) addr = val;
353}
354
355static inline void
356__writel (unsigned int val, volatile void __iomem *addr)
357{
358 *(volatile unsigned int __force *) addr = val;
359}
360
361static inline void
362__writeq (unsigned long val, volatile void __iomem *addr)
363{
364 *(volatile unsigned long __force *) addr = val;
365}
366
367#define __readb platform_readb
368#define __readw platform_readw
369#define __readl platform_readl
370#define __readq platform_readq
371#define __readb_relaxed platform_readb_relaxed
372#define __readw_relaxed platform_readw_relaxed
373#define __readl_relaxed platform_readl_relaxed
374#define __readq_relaxed platform_readq_relaxed
375
376#define readb(a) __readb((a))
377#define readw(a) __readw((a))
378#define readl(a) __readl((a))
379#define readq(a) __readq((a))
380#define readb_relaxed(a) __readb_relaxed((a))
381#define readw_relaxed(a) __readw_relaxed((a))
382#define readl_relaxed(a) __readl_relaxed((a))
383#define readq_relaxed(a) __readq_relaxed((a))
384#define __raw_readb readb
385#define __raw_readw readw
386#define __raw_readl readl
387#define __raw_readq readq
388#define __raw_readb_relaxed readb_relaxed
389#define __raw_readw_relaxed readw_relaxed
390#define __raw_readl_relaxed readl_relaxed
391#define __raw_readq_relaxed readq_relaxed
392#define writeb(v,a) __writeb((v), (a))
393#define writew(v,a) __writew((v), (a))
394#define writel(v,a) __writel((v), (a))
395#define writeq(v,a) __writeq((v), (a))
396#define writeb_relaxed(v,a) __writeb((v), (a))
397#define writew_relaxed(v,a) __writew((v), (a))
398#define writel_relaxed(v,a) __writel((v), (a))
399#define writeq_relaxed(v,a) __writeq((v), (a))
400#define __raw_writeb writeb
401#define __raw_writew writew
402#define __raw_writel writel
403#define __raw_writeq writeq
404
405#ifndef inb_p
406# define inb_p inb
407#endif
408#ifndef inw_p
409# define inw_p inw
410#endif
411#ifndef inl_p
412# define inl_p inl
413#endif
414
415#ifndef outb_p
416# define outb_p outb
417#endif
418#ifndef outw_p
419# define outw_p outw
420#endif
421#ifndef outl_p
422# define outl_p outl
423#endif
424
425# ifdef __KERNEL__
426
427extern void __iomem * ioremap(unsigned long offset, unsigned long size);
428extern void __iomem * ioremap_nocache (unsigned long offset, unsigned long size);
429extern void iounmap (volatile void __iomem *addr);
430extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size);
431#define early_memremap(phys_addr, size) early_ioremap(phys_addr, size)
432extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
433#define early_memunmap(addr, size) early_iounmap(addr, size)
434static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size)
435{
436 return ioremap(phys_addr, size);
437}
438
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442
443extern void memcpy_fromio(void *dst, const volatile void __iomem *src, long n);
444extern void memcpy_toio(volatile void __iomem *dst, const void *src, long n);
445extern void memset_io(volatile void __iomem *s, int c, long n);
446
447# endif
448
449#endif
450