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)
20 static inline u8 _inb(unsigned long addr)
24 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_inb */"
26 : "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)
44 static inline u32 _inl(unsigned long addr)
48 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_inl */"
50 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
56 static inline void _outb(u8 b, unsigned long addr)
58 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_outb */"
60 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
64 static inline void _outw(u16 w, unsigned long addr)
66 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_outw */"
68 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
72 static inline void _outl(u32 l, unsigned long addr)
74 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_outl */"
76 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
80 #define inb(__addr) (_inb((unsigned long)(__addr)))
81 #define inw(__addr) (_inw((unsigned long)(__addr)))
82 #define inl(__addr) (_inl((unsigned long)(__addr)))
83 #define outb(__b, __addr) (_outb((u8)(__b), (unsigned long)(__addr)))
84 #define outw(__w, __addr) (_outw((u16)(__w), (unsigned long)(__addr)))
85 #define outl(__l, __addr) (_outl((u32)(__l), (unsigned long)(__addr)))
87 #define inb_p(__addr) inb(__addr)
88 #define outb_p(__b, __addr) outb(__b, __addr)
89 #define inw_p(__addr) inw(__addr)
90 #define outw_p(__w, __addr) outw(__w, __addr)
91 #define inl_p(__addr) inl(__addr)
92 #define outl_p(__l, __addr) outl(__l, __addr)
94 extern void outsb(unsigned long, const void *, unsigned long);
95 extern void outsw(unsigned long, const void *, unsigned long);
96 extern void outsl(unsigned long, const void *, unsigned long);
97 extern void insb(unsigned long, void *, unsigned long);
98 extern void insw(unsigned long, void *, unsigned long);
99 extern void insl(unsigned long, void *, unsigned long);
101 static inline void ioread8_rep(void __iomem *port, void *buf, unsigned long count)
103 insb((unsigned long __force)port, buf, count);
105 static inline void ioread16_rep(void __iomem *port, void *buf, unsigned long count)
107 insw((unsigned long __force)port, buf, count);
110 static inline void ioread32_rep(void __iomem *port, void *buf, unsigned long count)
112 insl((unsigned long __force)port, buf, count);
115 static inline void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count)
117 outsb((unsigned long __force)port, buf, count);
120 static inline void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count)
122 outsw((unsigned long __force)port, buf, count);
125 static inline void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count)
127 outsl((unsigned long __force)port, buf, count);
130 /* Memory functions, same as I/O accesses on Ultra. */
131 static inline u8 _readb(const volatile void __iomem *addr)
134 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_readb */"
136 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
141 static inline u16 _readw(const volatile void __iomem *addr)
144 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_readw */"
146 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
152 static inline u32 _readl(const volatile void __iomem *addr)
155 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_readl */"
157 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
163 static inline u64 _readq(const volatile void __iomem *addr)
166 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_readq */"
168 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
174 static inline void _writeb(u8 b, volatile void __iomem *addr)
176 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_writeb */"
178 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
182 static inline void _writew(u16 w, volatile void __iomem *addr)
184 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_writew */"
186 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
190 static inline void _writel(u32 l, volatile void __iomem *addr)
192 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_writel */"
194 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
198 static inline void _writeq(u64 q, volatile void __iomem *addr)
200 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_writeq */"
202 : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E_L)
206 #define readb(__addr) _readb(__addr)
207 #define readw(__addr) _readw(__addr)
208 #define readl(__addr) _readl(__addr)
209 #define readq(__addr) _readq(__addr)
210 #define readb_relaxed(__addr) _readb(__addr)
211 #define readw_relaxed(__addr) _readw(__addr)
212 #define readl_relaxed(__addr) _readl(__addr)
213 #define readq_relaxed(__addr) _readq(__addr)
214 #define writeb(__b, __addr) _writeb(__b, __addr)
215 #define writew(__w, __addr) _writew(__w, __addr)
216 #define writel(__l, __addr) _writel(__l, __addr)
217 #define writeq(__q, __addr) _writeq(__q, __addr)
219 /* Now versions without byte-swapping. */
220 static inline u8 _raw_readb(unsigned long addr)
224 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* pci_raw_readb */"
226 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
231 static inline u16 _raw_readw(unsigned long addr)
235 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* pci_raw_readw */"
237 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
242 static inline u32 _raw_readl(unsigned long addr)
246 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* pci_raw_readl */"
248 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
253 static inline u64 _raw_readq(unsigned long addr)
257 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* pci_raw_readq */"
259 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
264 static inline void _raw_writeb(u8 b, unsigned long addr)
266 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* pci_raw_writeb */"
268 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
271 static inline void _raw_writew(u16 w, unsigned long addr)
273 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* pci_raw_writew */"
275 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
278 static inline void _raw_writel(u32 l, unsigned long addr)
280 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* pci_raw_writel */"
282 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
285 static inline void _raw_writeq(u64 q, unsigned long addr)
287 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* pci_raw_writeq */"
289 : "Jr" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
292 #define __raw_readb(__addr) (_raw_readb((unsigned long)(__addr)))
293 #define __raw_readw(__addr) (_raw_readw((unsigned long)(__addr)))
294 #define __raw_readl(__addr) (_raw_readl((unsigned long)(__addr)))
295 #define __raw_readq(__addr) (_raw_readq((unsigned long)(__addr)))
296 #define __raw_writeb(__b, __addr) (_raw_writeb((u8)(__b), (unsigned long)(__addr)))
297 #define __raw_writew(__w, __addr) (_raw_writew((u16)(__w), (unsigned long)(__addr)))
298 #define __raw_writel(__l, __addr) (_raw_writel((u32)(__l), (unsigned long)(__addr)))
299 #define __raw_writeq(__q, __addr) (_raw_writeq((u64)(__q), (unsigned long)(__addr)))
301 /* Valid I/O Space regions are anywhere, because each PCI bus supported
302 * can live in an arbitrary area of the physical address range.
304 #define IO_SPACE_LIMIT 0xffffffffffffffffUL
306 /* Now, SBUS variants, only difference from PCI is that we do
307 * not use little-endian ASIs.
309 static inline u8 _sbus_readb(const volatile void __iomem *addr)
313 __asm__ __volatile__("lduba\t[%1] %2, %0\t/* sbus_readb */"
315 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
321 static inline u16 _sbus_readw(const volatile void __iomem *addr)
325 __asm__ __volatile__("lduha\t[%1] %2, %0\t/* sbus_readw */"
327 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
333 static inline u32 _sbus_readl(const volatile void __iomem *addr)
337 __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* sbus_readl */"
339 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
345 static inline u64 _sbus_readq(const volatile void __iomem *addr)
349 __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* sbus_readq */"
351 : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
357 static inline void _sbus_writeb(u8 b, volatile void __iomem *addr)
359 __asm__ __volatile__("stba\t%r0, [%1] %2\t/* sbus_writeb */"
361 : "Jr" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
365 static inline void _sbus_writew(u16 w, volatile void __iomem *addr)
367 __asm__ __volatile__("stha\t%r0, [%1] %2\t/* sbus_writew */"
369 : "Jr" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
373 static inline void _sbus_writel(u32 l, volatile void __iomem *addr)
375 __asm__ __volatile__("stwa\t%r0, [%1] %2\t/* sbus_writel */"
377 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
381 static inline void _sbus_writeq(u64 l, volatile void __iomem *addr)
383 __asm__ __volatile__("stxa\t%r0, [%1] %2\t/* sbus_writeq */"
385 : "Jr" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)
389 #define sbus_readb(__addr) _sbus_readb(__addr)
390 #define sbus_readw(__addr) _sbus_readw(__addr)
391 #define sbus_readl(__addr) _sbus_readl(__addr)
392 #define sbus_readq(__addr) _sbus_readq(__addr)
393 #define sbus_writeb(__b, __addr) _sbus_writeb(__b, __addr)
394 #define sbus_writew(__w, __addr) _sbus_writew(__w, __addr)
395 #define sbus_writel(__l, __addr) _sbus_writel(__l, __addr)
396 #define sbus_writeq(__l, __addr) _sbus_writeq(__l, __addr)
398 static inline void _sbus_memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
406 #define sbus_memset_io(d,c,sz) _sbus_memset_io(d,c,sz)
409 _memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
411 volatile void __iomem *d = dst;
419 #define memset_io(d,c,sz) _memset_io(d,c,sz)
422 _sbus_memcpy_fromio(void *dst, const volatile void __iomem *src,
428 char tmp = sbus_readb(src);
434 #define sbus_memcpy_fromio(d, s, sz) _sbus_memcpy_fromio(d, s, sz)
437 _memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
442 char tmp = readb(src);
448 #define memcpy_fromio(d,s,sz) _memcpy_fromio(d,s,sz)
451 _sbus_memcpy_toio(volatile void __iomem *dst, const void *src,
455 volatile void __iomem *d = dst;
464 #define sbus_memcpy_toio(d, s, sz) _sbus_memcpy_toio(d, s, sz)
467 _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
470 volatile void __iomem *d = dst;
479 #define memcpy_toio(d,s,sz) _memcpy_toio(d,s,sz)
485 /* On sparc64 we have the whole physical IO address space accessible
486 * using physically addressed loads and stores, so this does nothing.
488 static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
490 return (void __iomem *)offset;
493 #define ioremap_nocache(X,Y) ioremap((X),(Y))
494 #define ioremap_wc(X,Y) ioremap((X),(Y))
496 static inline void iounmap(volatile void __iomem *addr)
500 #define ioread8(X) readb(X)
501 #define ioread16(X) readw(X)
502 #define ioread16be(X) __raw_readw(X)
503 #define ioread32(X) readl(X)
504 #define ioread32be(X) __raw_readl(X)
505 #define iowrite8(val,X) writeb(val,X)
506 #define iowrite16(val,X) writew(val,X)
507 #define iowrite16be(val,X) __raw_writew(val,X)
508 #define iowrite32(val,X) writel(val,X)
509 #define iowrite32be(val,X) __raw_writel(val,X)
511 /* Create a virtual mapping cookie for an IO port range */
512 extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
513 extern void ioport_unmap(void __iomem *);
515 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
517 extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
518 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
520 static inline int sbus_can_dma_64bit(void)
524 static inline int sbus_can_burst64(void)
529 extern void sbus_set_sbus64(struct device *, int);
532 * Convert a physical pointer to a virtual kernel pointer for /dev/mem
535 #define xlate_dev_mem_ptr(p) __va(p)
538 * Convert a virtual cached pointer to an uncached pointer
540 #define xlate_dev_kmem_ptr(p) p
544 #endif /* !(__SPARC64_IO_H) */