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)
33 static inline u16 _inw(unsigned long addr)
37 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_inw */"
39 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
45 static inline u32 _inl(unsigned long addr)
49 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_inl */"
51 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
57 static inline void _outb(u8 b, unsigned long addr)
59 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_outb */"
61 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
65 static inline void _outw(u16 w, unsigned long addr)
67 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_outw */"
69 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
73 static inline void _outl(u32 l, unsigned long addr)
75 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_outl */"
77 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
81 #define inb(__addr) (_inb((unsigned long)(__addr)))
82 #define inw(__addr) (_inw((unsigned long)(__addr)))
83 #define inl(__addr) (_inl((unsigned long)(__addr)))
84 #define outb(__b, __addr) (_outb((u8)(__b), (unsigned long)(__addr)))
85 #define outw(__w, __addr) (_outw((u16)(__w), (unsigned long)(__addr)))
86 #define outl(__l, __addr) (_outl((u32)(__l), (unsigned long)(__addr)))
88 #define inb_p(__addr) inb(__addr)
89 #define outb_p(__b, __addr) outb(__b, __addr)
90 #define inw_p(__addr) inw(__addr)
91 #define outw_p(__w, __addr) outw(__w, __addr)
92 #define inl_p(__addr) inl(__addr)
93 #define outl_p(__l, __addr) outl(__l, __addr)
95 extern void outsb(unsigned long, const void *, unsigned long);
96 extern void outsw(unsigned long, const void *, unsigned long);
97 extern void outsl(unsigned long, const void *, unsigned long);
98 extern void insb(unsigned long, void *, unsigned long);
99 extern void insw(unsigned long, void *, unsigned long);
100 extern void insl(unsigned long, void *, unsigned long);
102 static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
104 insb((unsigned long __force)port, buf, count);
106 static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
108 insw((unsigned long __force)port, buf, count);
111 static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
113 insl((unsigned long __force)port, buf, count);
116 static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count)
118 outsb((unsigned long __force)port, buf, count);
121 static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count)
123 outsw((unsigned long __force)port, buf, count);
126 static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count)
128 outsl((unsigned long __force)port, buf, count);
131 /* Memory functions, same as I/O accesses on Ultra. */
132 static inline u8 _readb(const volatile void __iomem *addr)
135 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_readb */"
137 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
142 static inline u16 _readw(const volatile void __iomem *addr)
145 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_readw */"
147 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
153 static inline u32 _readl(const volatile void __iomem *addr)
156 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_readl */"
158 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
164 static inline u64 _readq(const volatile void __iomem *addr)
167 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_readq */"
169 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
175 static inline void _writeb(u8 b, volatile void __iomem *addr)
177 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_writeb */"
179 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
183 static inline void _writew(u16 w, volatile void __iomem *addr)
185 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_writew */"
187 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
191 static inline void _writel(u32 l, volatile void __iomem *addr)
193 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_writel */"
195 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
199 static inline void _writeq(u64 q, volatile void __iomem *addr)
201 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_writeq */"
203 : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
207 #define readb(__addr) _readb(__addr)
208 #define readw(__addr) _readw(__addr)
209 #define readl(__addr) _readl(__addr)
210 #define readq(__addr) _readq(__addr)
211 #define readb_relaxed(__addr) _readb(__addr)
212 #define readw_relaxed(__addr) _readw(__addr)
213 #define readl_relaxed(__addr) _readl(__addr)
214 #define readq_relaxed(__addr) _readq(__addr)
215 #define writeb(__b, __addr) _writeb(__b, __addr)
216 #define writew(__w, __addr) _writew(__w, __addr)
217 #define writel(__l, __addr) _writel(__l, __addr)
218 #define writeq(__q, __addr) _writeq(__q, __addr)
220 /* Now versions without byte-swapping. */
221 static inline u8 _raw_readb(unsigned long addr)
225 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_raw_readb */"
227 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
232 static inline u16 _raw_readw(unsigned long addr)
236 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_raw_readw */"
238 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
243 static inline u32 _raw_readl(unsigned long addr)
247 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_raw_readl */"
249 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
254 static inline u64 _raw_readq(unsigned long addr)
258 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_raw_readq */"
260 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
265 static inline void _raw_writeb(u8 b, unsigned long addr)
267 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_raw_writeb */"
269 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
272 static inline void _raw_writew(u16 w, unsigned long addr)
274 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_raw_writew */"
276 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
279 static inline void _raw_writel(u32 l, unsigned long addr)
281 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_raw_writel */"
283 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
286 static inline void _raw_writeq(u64 q, unsigned long addr)
288 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_raw_writeq */"
290 : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
293 #define __raw_readb(__addr) (_raw_readb((unsigned long)(__addr)))
294 #define __raw_readw(__addr) (_raw_readw((unsigned long)(__addr)))
295 #define __raw_readl(__addr) (_raw_readl((unsigned long)(__addr)))
296 #define __raw_readq(__addr) (_raw_readq((unsigned long)(__addr)))
297 #define __raw_writeb(__b, __addr) (_raw_writeb((u8)(__b), (unsigned long)(__addr)))
298 #define __raw_writew(__w, __addr) (_raw_writew((u16)(__w), (unsigned long)(__addr)))
299 #define __raw_writel(__l, __addr) (_raw_writel((u32)(__l), (unsigned long)(__addr)))
300 #define __raw_writeq(__q, __addr) (_raw_writeq((u64)(__q), (unsigned long)(__addr)))
302 /* Valid I/O Space regions are anywhere, because each PCI bus supported
303 * can live in an arbitrary area of the physical address range.
305 #define IO_SPACE_LIMIT 0xffffffffffffffffUL
307 /* Now, SBUS variants, only difference from PCI is that we do
308 * not use little-endian ASIs.
310 static inline u8 _sbus_readb(const volatile void __iomem *addr)
314 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* sbus_readb */"
316 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
322 static inline u16 _sbus_readw(const volatile void __iomem *addr)
326 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* sbus_readw */"
328 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
334 static inline u32 _sbus_readl(const volatile void __iomem *addr)
338 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* sbus_readl */"
340 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
346 static inline u64 _sbus_readq(const volatile void __iomem *addr)
350 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* sbus_readq */"
352 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
358 static inline void _sbus_writeb(u8 b, volatile void __iomem *addr)
360 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* sbus_writeb */"
362 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
366 static inline void _sbus_writew(u16 w, volatile void __iomem *addr)
368 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* sbus_writew */"
370 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
374 static inline void _sbus_writel(u32 l, volatile void __iomem *addr)
376 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* sbus_writel */"
378 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
382 static inline void _sbus_writeq(u64 l, volatile void __iomem *addr)
384 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* sbus_writeq */"
386 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
390 #define sbus_readb(__addr) _sbus_readb(__addr)
391 #define sbus_readw(__addr) _sbus_readw(__addr)
392 #define sbus_readl(__addr) _sbus_readl(__addr)
393 #define sbus_readq(__addr) _sbus_readq(__addr)
394 #define sbus_writeb(__b, __addr) _sbus_writeb(__b, __addr)
395 #define sbus_writew(__w, __addr) _sbus_writew(__w, __addr)
396 #define sbus_writel(__l, __addr) _sbus_writel(__l, __addr)
397 #define sbus_writeq(__l, __addr) _sbus_writeq(__l, __addr)
399 static inline void _sbus_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
407 #define sbus_memset_io(d,c,sz) _sbus_memset_io(d,c,sz)
410 _memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
412 volatile void __iomem *d = dst;
420 #define memset_io(d,c,sz) _memset_io(d,c,sz)
423 _memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
428 char tmp = readb(src);
434 #define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz)
437 _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
440 volatile void __iomem *d = dst;
449 #define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz)
455 /* On sparc64 we have the whole physical IO address space accessible
456 * using physically addressed loads and stores, so this does nothing.
458 static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
460 return (void __iomem *)offset;
463 #define ioremap_nocache(X,Y) ioremap((X),(Y))
465 static inline void iounmap(volatile void __iomem *addr)
469 #define ioread8(X) readb(X)
470 #define ioread16(X) readw(X)
471 #define ioread32(X) readl(X)
472 #define iowrite8(val,X) writeb(val,X)
473 #define iowrite16(val,X) writew(val,X)
474 #define iowrite32(val,X) writel(val,X)
476 /* Create a virtual mapping cookie for an IO port range */
477 extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
478 extern void ioport_unmap(void __iomem *);
480 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
482 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
483 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
485 /* Similarly for SBUS. */
486 #define sbus_ioremap(__res, __offset, __size, __name) \
487 ({ unsigned long __ret; \
488 __ret = (__res)->start + (((__res)->flags & 0x1ffUL) << 32UL); \
489 __ret += (unsigned long) (__offset); \
490 if (! request_region((__ret), (__size), (__name))) \
492 (void __iomem *) __ret; \
495 #define sbus_iounmap(__addr, __size) \
496 release_region((unsigned long)(__addr), (__size))
499 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
502 #define xlate_dev_mem_ptr(p) __va(p)
505 * Convert a virtual cached pointer to an uncached pointer
507 #define xlate_dev_kmem_ptr(p) p
511 #endif /* !(__SPARC64_IO_H) */