LXR linux/arch/sparc/include/asm/upa.h

   1#ifndef _SPARC64_UPA_H
   2#define _SPARC64_UPA_H
   3
   4#include <asm/asi.h>
   5
   6/* UPA level registers and defines. */
   7
   8/* UPA Config Register */
   9#define UPA_CONFIG_RESV         0xffffffffc0000000 /* Reserved.                    */
  10#define UPA_CONFIG_PCON         0x000000003fc00000 /* Depth of various sys queues. */
  11#define UPA_CONFIG_MID          0x00000000003e0000 /* Module ID.                   */
  12#define UPA_CONFIG_PCAP         0x000000000001ffff /* Port Capabilities.           */
  13
  14/* UPA Port ID Register */
  15#define UPA_PORTID_FNP          0xff00000000000000 /* Hardcoded to 0xfc on ultra.  */
  16#define UPA_PORTID_RESV         0x00fffff800000000 /* Reserved.                    */
  17#define UPA_PORTID_ECCVALID     0x0000000400000000 /* Zero if mod can generate ECC */
  18#define UPA_PORTID_ONEREAD      0x0000000200000000 /* Set if mod generates P_RASB  */
  19#define UPA_PORTID_PINTRDQ      0x0000000180000000 /* # outstanding P_INT_REQ's    */
  20#define UPA_PORTID_PREQDQ       0x000000007e000000 /* slave-wr's to mod supported  */
  21#define UPA_PORTID_PREQRD       0x0000000001e00000 /* # incoming P_REQ's supported */
  22#define UPA_PORTID_UPACAP       0x00000000001f0000 /* UPA capabilities of mod      */
  23#define UPA_PORTID_ID           0x000000000000ffff /* Module Identification bits  */
  24
  25/* UPA I/O space accessors */
  26#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
  27static inline unsigned char _upa_readb(unsigned long addr)
  28{
  29        unsigned char ret;
  30
  31        __asm__ __volatile__("lduba\t[%1] %2, %0\t/* upa_readb */"
  32                             : "=r" (ret)
  33                             : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
  34
  35        return ret;
  36}
  37
  38static inline unsigned short _upa_readw(unsigned long addr)
  39{
  40        unsigned short ret;
  41
  42        __asm__ __volatile__("lduha\t[%1] %2, %0\t/* upa_readw */"
  43                             : "=r" (ret)
  44                             : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
  45
  46        return ret;
  47}
  48
  49static inline unsigned int _upa_readl(unsigned long addr)
  50{
  51        unsigned int ret;
  52
  53        __asm__ __volatile__("lduwa\t[%1] %2, %0\t/* upa_readl */"
  54                             : "=r" (ret)
  55                             : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
  56
  57        return ret;
  58}
  59
  60static inline unsigned long _upa_readq(unsigned long addr)
  61{
  62        unsigned long ret;
  63
  64        __asm__ __volatile__("ldxa\t[%1] %2, %0\t/* upa_readq */"
  65                             : "=r" (ret)
  66                             : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
  67
  68        return ret;
  69}
  70
  71static inline void _upa_writeb(unsigned char b, unsigned long addr)
  72{
  73        __asm__ __volatile__("stba\t%0, [%1] %2\t/* upa_writeb */"
  74                             : /* no outputs */
  75                             : "r" (b), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
  76}
  77
  78static inline void _upa_writew(unsigned short w, unsigned long addr)
  79{
  80        __asm__ __volatile__("stha\t%0, [%1] %2\t/* upa_writew */"
  81                             : /* no outputs */
  82                             : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
  83}
  84
  85static inline void _upa_writel(unsigned int l, unsigned long addr)
  86{
  87        __asm__ __volatile__("stwa\t%0, [%1] %2\t/* upa_writel */"
  88                             : /* no outputs */
  89                             : "r" (l), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
  90}
  91
  92static inline void _upa_writeq(unsigned long q, unsigned long addr)
  93{
  94        __asm__ __volatile__("stxa\t%0, [%1] %2\t/* upa_writeq */"
  95                             : /* no outputs */
  96                             : "r" (q), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E));
  97}
  98
  99#define upa_readb(__addr)               (_upa_readb((unsigned long)(__addr)))
 100#define upa_readw(__addr)               (_upa_readw((unsigned long)(__addr)))
 101#define upa_readl(__addr)               (_upa_readl((unsigned long)(__addr)))
 102#define upa_readq(__addr)               (_upa_readq((unsigned long)(__addr)))
 103#define upa_writeb(__b, __addr)         (_upa_writeb((__b), (unsigned long)(__addr)))
 104#define upa_writew(__w, __addr)         (_upa_writew((__w), (unsigned long)(__addr)))
 105#define upa_writel(__l, __addr)         (_upa_writel((__l), (unsigned long)(__addr)))
 106#define upa_writeq(__q, __addr)         (_upa_writeq((__q), (unsigned long)(__addr)))
 107#endif /* __KERNEL__ && !__ASSEMBLY__ */
 108
 109#endif /* !(_SPARC64_UPA_H) */
 110