arch/ppc/xmon/privinst.h

   1 /*
   2  * Copyright (C) 1996 Paul Mackerras.
   3  */
   4
   5 #define GETREG(reg)             \
   6     static inline int get_ ## reg (void)        \
   7         { int ret; asm volatile ("mf" #reg " %0" : "=r" (ret) :); return ret; }
   8
   9 #define SETREG(reg)             \
  10     static inline void set_ ## reg (int val)    \
  11         { asm volatile ("mt" #reg " %0" : : "r" (val)); }
  12
  13 GETREG(msr)
  14 SETREG(msr)
  15 GETREG(cr)
  16
  17 #define GSETSPR(n, name)        \
  18     static inline int get_ ## name (void) \
  19         { int ret; asm volatile ("mfspr %0," #n : "=r" (ret) : ); return ret; } \
  20     static inline void set_ ## name (int val) \
  21         { asm volatile ("mtspr " #n ",%0" : : "r" (val)); }
  22
  23 GSETSPR(0, mq)
  24 GSETSPR(1, xer)
  25 GSETSPR(4, rtcu)
  26 GSETSPR(5, rtcl)
  27 GSETSPR(8, lr)
  28 GSETSPR(9, ctr)
  29 GSETSPR(18, dsisr)
  30 GSETSPR(19, dar)
  31 GSETSPR(22, dec)
  32 GSETSPR(25, sdr1)
  33 GSETSPR(26, srr0)
  34 GSETSPR(27, srr1)
  35 GSETSPR(272, sprg0)
  36 GSETSPR(273, sprg1)
  37 GSETSPR(274, sprg2)
  38 GSETSPR(275, sprg3)
  39 GSETSPR(282, ear)
  40 GSETSPR(287, pvr)
  41 GSETSPR(528, bat0u)
  42 GSETSPR(529, bat0l)
  43 GSETSPR(530, bat1u)
  44 GSETSPR(531, bat1l)
  45 GSETSPR(532, bat2u)
  46 GSETSPR(533, bat2l)
  47 GSETSPR(534, bat3u)
  48 GSETSPR(535, bat3l)
  49 GSETSPR(1008, hid0)
  50 GSETSPR(1009, hid1)
  51 GSETSPR(1010, iabr)
  52 GSETSPR(1013, dabr)
  53 GSETSPR(1023, pir)
  54
  55 static inline int get_sr(int n)
  56 {
  57     int ret;
  58
  59     asm (" mfsrin %0,%1" : "=r" (ret) : "r" (n << 28));
  60     return ret;
  61 }
  62
  63 static inline void set_sr(int n, int val)
  64 {
  65     asm ("mtsrin %0,%1" : : "r" (val), "r" (n << 28));
  66 }
  67
  68 static inline void store_inst(void *p)
  69 {
  70     asm volatile ("dcbst 0,%0; sync; icbi 0,%0; isync" : : "r" (p));
  71 }
  72
  73