arch/blackfin/include/asm/blackfin.h

   1 /*
   2  * Common header file for Blackfin family of processors.
   3  *
   4  * Copyright 2004-2009 Analog Devices Inc.
   5  *
   6  * Licensed under the GPL-2 or later.
   7  */
   8
   9 #ifndef _BLACKFIN_H_
  10 #define _BLACKFIN_H_
  11
  12 #include <mach/anomaly.h>
  13
  14 #ifndef __ASSEMBLY__
  15
  16 /* SSYNC implementation for C file */
  17 static inline void SSYNC(void)
  18 {
  19         int _tmp;
  20         if (ANOMALY_05000312)
  21                 __asm__ __volatile__(
  22                         "cli %0;"
  23                         "nop;"
  24                         "nop;"
  25                         "ssync;"
  26                         "sti %0;"
  27                         : "=d" (_tmp)
  28                 );
  29         else if (ANOMALY_05000244)
  30                 __asm__ __volatile__(
  31                         "nop;"
  32                         "nop;"
  33                         "nop;"
  34                         "ssync;"
  35                 );
  36         else
  37                 __asm__ __volatile__("ssync;");
  38 }
  39
  40 /* CSYNC implementation for C file */
  41 static inline void CSYNC(void)
  42 {
  43         int _tmp;
  44         if (ANOMALY_05000312)
  45                 __asm__ __volatile__(
  46                         "cli %0;"
  47                         "nop;"
  48                         "nop;"
  49                         "csync;"
  50                         "sti %0;"
  51                         : "=d" (_tmp)
  52                 );
  53         else if (ANOMALY_05000244)
  54                 __asm__ __volatile__(
  55                         "nop;"
  56                         "nop;"
  57                         "nop;"
  58                         "csync;"
  59                 );
  60         else
  61                 __asm__ __volatile__("csync;");
  62 }
  63
  64 #else  /* __ASSEMBLY__ */
  65
  66 #define LO(con32) ((con32) & 0xFFFF)
  67 #define lo(con32) ((con32) & 0xFFFF)
  68 #define HI(con32) (((con32) >> 16) & 0xFFFF)
  69 #define hi(con32) (((con32) >> 16) & 0xFFFF)
  70
  71 /* SSYNC & CSYNC implementations for assembly files */
  72
  73 #define ssync(x) SSYNC(x)
  74 #define csync(x) CSYNC(x)
  75
  76 #if ANOMALY_05000312
  77 #define SSYNC(scratch) cli scratch; nop; nop; SSYNC; sti scratch;
  78 #define CSYNC(scratch) cli scratch; nop; nop; CSYNC; sti scratch;
  79
  80 #elif ANOMALY_05000244
  81 #define SSYNC(scratch) nop; nop; nop; SSYNC;
  82 #define CSYNC(scratch) nop; nop; nop; CSYNC;
  83
  84 #else
  85 #define SSYNC(scratch) SSYNC;
  86 #define CSYNC(scratch) CSYNC;
  87
  88 #endif /* ANOMALY_05000312 & ANOMALY_05000244 handling */
  89
  90 #endif /* __ASSEMBLY__ */
  91
  92 #include <asm/mem_map.h>
  93 #include <mach/blackfin.h>
  94 #include <asm/bfin-global.h>
  95
  96 #endif                          /* _BLACKFIN_H_ */