arch/powerpc/platforms/pseries/plpar_wrappers.h

   1 #ifndef _PSERIES_PLPAR_WRAPPERS_H
   2 #define _PSERIES_PLPAR_WRAPPERS_H
   3
   4 #include <asm/hvcall.h>
   5
   6 static inline long poll_pending(void)
   7 {
   8         unsigned long dummy;
   9         return plpar_hcall(H_POLL_PENDING, 0, 0, 0, 0, &dummy, &dummy, &dummy);
  10 }
  11
  12 static inline long prod_processor(void)
  13 {
  14         plpar_hcall_norets(H_PROD);
  15         return 0;
  16 }
  17
  18 static inline long cede_processor(void)
  19 {
  20         plpar_hcall_norets(H_CEDE);
  21         return 0;
  22 }
  23
  24 static inline long register_vpa(unsigned long flags, unsigned long proc,
  25                 unsigned long vpa)
  26 {
  27         return plpar_hcall_norets(H_REGISTER_VPA, flags, proc, vpa);
  28 }
  29
  30 void vpa_init(int cpu);
  31
  32 static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex,
  33                 unsigned long avpn, unsigned long *old_pteh_ret,
  34                 unsigned long *old_ptel_ret)
  35 {
  36         unsigned long dummy;
  37         return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0, old_pteh_ret,
  38                         old_ptel_ret, &dummy);
  39 }
  40
  41 static inline long plpar_pte_read(unsigned long flags, unsigned long ptex,
  42                 unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
  43 {
  44         unsigned long dummy;
  45         return plpar_hcall(H_READ, flags, ptex, 0, 0, old_pteh_ret,
  46                         old_ptel_ret, &dummy);
  47 }
  48
  49 static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
  50                 unsigned long avpn)
  51 {
  52         return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn);
  53 }
  54
  55 static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba,
  56                 unsigned long *tce_ret)
  57 {
  58         unsigned long dummy;
  59         return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0, tce_ret, &dummy,
  60                         &dummy);
  61 }
  62
  63 static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba,
  64                 unsigned long tceval)
  65 {
  66         return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval);
  67 }
  68
  69 static inline long plpar_tce_put_indirect(unsigned long liobn,
  70                 unsigned long ioba, unsigned long page, unsigned long count)
  71 {
  72         return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count);
  73 }
  74
  75 static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba,
  76                 unsigned long tceval, unsigned long count)
  77 {
  78         return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count);
  79 }
  80
  81 static inline long plpar_get_term_char(unsigned long termno,
  82                 unsigned long *len_ret, char *buf_ret)
  83 {
  84         unsigned long *lbuf = (unsigned long *)buf_ret; /* TODO: alignment? */
  85         return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0, len_ret,
  86                         lbuf + 0, lbuf + 1);
  87 }
  88
  89 static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
  90                 const char *buffer)
  91 {
  92         unsigned long *lbuf = (unsigned long *)buffer;  /* TODO: alignment? */
  93         return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0],
  94                         lbuf[1]);
  95 }
  96
  97 static inline long plpar_set_xdabr(unsigned long address, unsigned long flags)
  98 {
  99         return plpar_hcall_norets(H_SET_XDABR, address, flags);
 100 }
 101
 102 static inline long plpar_set_dabr(unsigned long val)
 103 {
 104         return plpar_hcall_norets(H_SET_DABR, val);
 105 }
 106
 107 #endif /* _PSERIES_PLPAR_WRAPPERS_H */