include/asm-ppc64/plpar_wrappers.h

   1 #ifndef _PPC64_PLPAR_WRAPPERS_H
   2 #define _PPC64_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,
  10                            &dummy, &dummy, &dummy);
  11 }
  12
  13 static inline long prod_processor(void)
  14 {
  15         plpar_hcall_norets(H_PROD);
  16         return(0);
  17 }
  18
  19 static inline long cede_processor(void)
  20 {
  21         plpar_hcall_norets(H_CEDE);
  22         return(0);
  23 }
  24
  25 static inline long register_vpa(unsigned long flags, unsigned long proc, unsigned long vpa)
  26 {
  27         plpar_hcall_norets(H_REGISTER_VPA, flags, proc, vpa);
  28         return(0);
  29 }
  30
  31 static inline long plpar_pte_remove(unsigned long flags,
  32                                     unsigned long ptex,
  33                                     unsigned long avpn,
  34                                     unsigned long *old_pteh_ret,
  35                                     unsigned long *old_ptel_ret)
  36 {
  37         unsigned long dummy;
  38         return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0,
  39                            old_pteh_ret, old_ptel_ret, &dummy);
  40 }
  41
  42 static inline long plpar_pte_read(unsigned long flags,
  43                                   unsigned long ptex,
  44                                   unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
  45 {
  46         unsigned long dummy;
  47         return plpar_hcall(H_READ, flags, ptex, 0, 0,
  48                            old_pteh_ret, old_ptel_ret, &dummy);
  49 }
  50
  51 static inline long plpar_pte_protect(unsigned long flags,
  52                                      unsigned long ptex,
  53                                      unsigned long avpn)
  54 {
  55         return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn);
  56 }
  57
  58 static inline long plpar_tce_get(unsigned long liobn,
  59                                  unsigned long ioba,
  60                                  unsigned long *tce_ret)
  61 {
  62         unsigned long dummy;
  63         return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0,
  64                            tce_ret, &dummy, &dummy);
  65 }
  66
  67 static inline long plpar_tce_put(unsigned long liobn,
  68                                  unsigned long ioba,
  69                                  unsigned long tceval)
  70 {
  71         return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval);
  72 }
  73
  74 static inline long plpar_tce_put_indirect(unsigned long liobn,
  75                                           unsigned long ioba,
  76                                           unsigned long page,
  77                                           unsigned long count)
  78 {
  79         return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count);
  80 }
  81
  82 static inline long plpar_tce_stuff(unsigned long liobn,
  83                                    unsigned long ioba,
  84                                    unsigned long tceval,
  85                                    unsigned long count)
  86 {
  87         return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count);
  88 }
  89
  90 static inline long plpar_get_term_char(unsigned long termno,
  91                                        unsigned long *len_ret,
  92                                        char *buf_ret)
  93 {
  94         unsigned long *lbuf = (unsigned long *)buf_ret;  /* ToDo: alignment? */
  95         return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0,
  96                            len_ret, lbuf+0, lbuf+1);
  97 }
  98
  99 static inline long plpar_put_term_char(unsigned long termno,
 100                                        unsigned long len,
 101                                        const char *buffer)
 102 {
 103         unsigned long *lbuf = (unsigned long *)buffer;  /* ToDo: alignment? */
 104         return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0],
 105                                   lbuf[1]);
 106 }
 107
 108
 109 #endif /* _PPC64_PLPAR_WRAPPERS_H */