4 #include <linux/kernel.h>
5 #include <linux/compiler.h>
6 #include <linux/types.h>
8 #include <asm/page.h> /* IO address mapping routines need this */
9 #include <asm/system.h>
13 #define __SLOW_DOWN_IO do { } while (0)
14 #define SLOW_DOWN_IO do { } while (0)
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
21 static inline u8 _inb(unsigned long addr)
25 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_inb */"
27 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
32 static inline u16 _inw(unsigned long addr)
36 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_inw */"
38 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
43 static inline u32 _inl(unsigned long addr)
47 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_inl */"
49 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
54 static inline void _outb(u8 b, unsigned long addr)
56 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_outb */"
58 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
61 static inline void _outw(u16 w, unsigned long addr)
63 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_outw */"
65 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
68 static inline void _outl(u32 l, unsigned long addr)
70 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_outl */"
72 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
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)))
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)
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);
96 static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
98 insb((unsigned long __force)port, buf, count);
100 static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
102 insw((unsigned long __force)port, buf, count);
105 static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
107 insl((unsigned long __force)port, buf, count);
110 static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count)
112 outsb((unsigned long __force)port, buf, count);
115 static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count)
117 outsw((unsigned long __force)port, buf, count);
120 static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count)
122 outsl((unsigned long __force)port, buf, count);
125 /* Memory functions, same as I/O accesses on Ultra. */
126 static inline u8 _readb(const volatile void __iomem *addr)
129 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_readb */"
131 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
135 static inline u16 _readw(const volatile void __iomem *addr)
138 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_readw */"
140 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
145 static inline u32 _readl(const volatile void __iomem *addr)
148 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_readl */"
150 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
155 static inline u64 _readq(const volatile void __iomem *addr)
158 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_readq */"
160 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
165 static inline void _writeb(u8 b, volatile void __iomem *addr)
167 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_writeb */"
169 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
172 static inline void _writew(u16 w, volatile void __iomem *addr)
174 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_writew */"
176 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
179 static inline void _writel(u32 l, volatile void __iomem *addr)
181 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_writel */"
183 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
186 static inline void _writeq(u64 q, volatile void __iomem *addr)
188 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_writeq */"
190 : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L));
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)
206 /* Now versions without byte-swapping. */
207 static inline u8 _raw_readb(unsigned long addr)
211 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_raw_readb */"
213 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
218 static inline u16 _raw_readw(unsigned long addr)
222 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_raw_readw */"
224 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
229 static inline u32 _raw_readl(unsigned long addr)
233 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_raw_readl */"
235 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
240 static inline u64 _raw_readq(unsigned long addr)
244 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_raw_readq */"
246 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
251 static inline void _raw_writeb(u8 b, unsigned long addr)
253 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_raw_writeb */"
255 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
258 static inline void _raw_writew(u16 w, unsigned long addr)
260 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_raw_writew */"
262 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
265 static inline void _raw_writel(u32 l, unsigned long addr)
267 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_raw_writel */"
269 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
272 static inline void _raw_writeq(u64 q, unsigned long addr)
274 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_raw_writeq */"
276 : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
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)))
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.
291 #define IO_SPACE_LIMIT 0xffffffffffffffffUL
293 /* Now, SBUS variants, only difference from PCI is that we do
294 * not use little-endian ASIs.
296 static inline u8 _sbus_readb(const volatile void __iomem *addr)
300 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* sbus_readb */"
302 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
307 static inline u16 _sbus_readw(const volatile void __iomem *addr)
311 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* sbus_readw */"
313 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
318 static inline u32 _sbus_readl(const volatile void __iomem *addr)
322 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* sbus_readl */"
324 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
329 static inline u64 _sbus_readq(const volatile void __iomem *addr)
333 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* sbus_readq */"
335 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
340 static inline void _sbus_writeb(u8 b, volatile void __iomem *addr)
342 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* sbus_writeb */"
344 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
347 static inline void _sbus_writew(u16 w, volatile void __iomem *addr)
349 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* sbus_writew */"
351 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
354 static inline void _sbus_writel(u32 l, volatile void __iomem *addr)
356 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* sbus_writel */"
358 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
361 static inline void _sbus_writeq(u64 l, volatile void __iomem *addr)
363 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* sbus_writeq */"
365 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
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)
377 static inline void _sbus_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
385 #define sbus_memset_io(d,c,sz) _sbus_memset_io(d,c,sz)
388 _memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
390 volatile void __iomem *d = dst;
398 #define memset_io(d,c,sz) _memset_io(d,c,sz)
401 _memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
406 char tmp = readb(src);
412 #define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz)
415 _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
418 volatile void __iomem *d = dst;
427 #define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz)
433 /* On sparc64 we have the whole physical IO address space accessible
434 * using physically addressed loads and stores, so this does nothing.
436 static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
438 return (void __iomem *)offset;
441 #define ioremap_nocache(X,Y) ioremap((X),(Y))
443 static inline void iounmap(volatile void __iomem *addr)
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)
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 *);
458 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
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 *);
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))) \
470 (void __iomem *) __ret; \
473 #define sbus_iounmap(__addr, __size) \
474 release_region((unsigned long)(__addr), (__size))
477 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
480 #define xlate_dev_mem_ptr(p) __va(p)
483 * Convert a virtual cached pointer to an uncached pointer
485 #define xlate_dev_kmem_ptr(p) p
489 #endif /* !(__SPARC64_IO_H) */