hw/xfree86/os-support/bsd/bsd_ev56.c

   1
   2 #ifdef HAVE_XORG_CONFIG_H
   3 #include <xorg-config.h>
   4 #endif
   5
   6 #include <X11/X.h>
   7 #include "input.h"
   8 #include "scrnintstr.h"
   9 #include "compiler.h"
  10
  11 #include "xf86.h"
  12 #include "xf86Priv.h"
  13 #include "xf86_OSlib.h"
  14 #include "xf86OSpriv.h"
  15
  16 #include <machine/bwx.h>
  17
  18 /*
  19  * The following functions are used only on EV56 and greater CPUs,
  20  * and the assembler requires going to EV56 mode in order to emit
  21  * these instructions.
  22  */
  23 __asm(".arch ev56");
  24
  25 int readDense8(pointer Base, register unsigned long Offset);
  26 int readDense16(pointer Base, register unsigned long Offset);
  27 int readDense32(pointer Base, register unsigned long Offset);
  28 void
  29  writeDenseNB8(int Value, pointer Base, register unsigned long Offset);
  30 void
  31  writeDenseNB16(int Value, pointer Base, register unsigned long Offset);
  32 void
  33  writeDenseNB32(int Value, pointer Base, register unsigned long Offset);
  34 void
  35  writeDense8(int Value, pointer Base, register unsigned long Offset);
  36 void
  37  writeDense16(int Value, pointer Base, register unsigned long Offset);
  38 void
  39  writeDense32(int Value, pointer Base, register unsigned long Offset);
  40
  41 int
  42 readDense8(pointer Base, register unsigned long Offset)
  43 {
  44     mem_barrier();
  45     return (alpha_ldbu((pointer) ((unsigned long) Base + (Offset))));
  46 }
  47
  48 int
  49 readDense16(pointer Base, register unsigned long Offset)
  50 {
  51     mem_barrier();
  52     return (alpha_ldwu((pointer) ((unsigned long) Base + (Offset))));
  53 }
  54
  55 int
  56 readDense32(pointer Base, register unsigned long Offset)
  57 {
  58     mem_barrier();
  59     return *(volatile CARD32 *) ((unsigned long) Base + (Offset));
  60 }
  61
  62 void
  63 writeDenseNB8(int Value, pointer Base, register unsigned long Offset)
  64 {
  65     alpha_stb((pointer) ((unsigned long) Base + (Offset)), Value);
  66 }
  67
  68 void
  69 writeDenseNB16(int Value, pointer Base, register unsigned long Offset)
  70 {
  71     alpha_stw((pointer) ((unsigned long) Base + (Offset)), Value);
  72 }
  73
  74 void
  75 writeDenseNB32(int Value, pointer Base, register unsigned long Offset)
  76 {
  77     *(volatile CARD32 *) ((unsigned long) Base + (Offset)) = Value;
  78 }
  79
  80 void
  81 writeDense8(int Value, pointer Base, register unsigned long Offset)
  82 {
  83     write_mem_barrier();
  84     alpha_stb((pointer) ((unsigned long) Base + (Offset)), Value);
  85 }
  86
  87 void
  88 writeDense16(int Value, pointer Base, register unsigned long Offset)
  89 {
  90     write_mem_barrier();
  91     alpha_stw((pointer) ((unsigned long) Base + (Offset)), Value);
  92 }
  93
  94 void
  95 writeDense32(int Value, pointer Base, register unsigned long Offset)
  96 {
  97     write_mem_barrier();
  98     *(volatile CARD32 *) ((unsigned long) Base + (Offset)) = Value;
  99 }