arch/blackfin/include/asm/blackfin.h

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