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,
  26                                 unsigned long vpa)
  27 {
  28         return plpar_hcall_norets(H_REGISTER_VPA, flags, proc, vpa);
  29 }
  30
  31 void vpa_init(int cpu);
  32
  33 static inline long plpar_pte_remove(unsigned long flags,
  34                                     unsigned long ptex,
  35                                     unsigned long avpn,
  36                                     unsigned long *old_pteh_ret,
  37                                     unsigned long *old_ptel_ret)
  38 {
  39         unsigned long dummy;
  40         return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0,
  41                            old_pteh_ret, old_ptel_ret, &dummy);
  42 }
  43
  44 static inline long plpar_pte_read(unsigned long flags,
  45                                   unsigned long ptex,
  46                                   unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
  47 {
  48         unsigned long dummy;
  49         return plpar_hcall(H_READ, flags, ptex, 0, 0,
  50                            old_pteh_ret, old_ptel_ret, &dummy);
  51 }
  52
  53 static inline long plpar_pte_protect(unsigned long flags,
  54                                      unsigned long ptex,
  55                                      unsigned long avpn)
  56 {
  57         return plpar_hcall_norets(H_PROTECT, flags, ptex, avpn);
  58 }
  59
  60 static inline long plpar_tce_get(unsigned long liobn,
  61                                  unsigned long ioba,
  62                                  unsigned long *tce_ret)
  63 {
  64         unsigned long dummy;
  65         return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0,
  66                            tce_ret, &dummy, &dummy);
  67 }
  68
  69 static inline long plpar_tce_put(unsigned long liobn,
  70                                  unsigned long ioba,
  71                                  unsigned long tceval)
  72 {
  73         return plpar_hcall_norets(H_PUT_TCE, liobn, ioba, tceval);
  74 }
  75
  76 static inline long plpar_tce_put_indirect(unsigned long liobn,
  77                                           unsigned long ioba,
  78                                           unsigned long page,
  79                                           unsigned long count)
  80 {
  81         return plpar_hcall_norets(H_PUT_TCE_INDIRECT, liobn, ioba, page, count);
  82 }
  83
  84 static inline long plpar_tce_stuff(unsigned long liobn,
  85                                    unsigned long ioba,
  86                                    unsigned long tceval,
  87                                    unsigned long count)
  88 {
  89         return plpar_hcall_norets(H_STUFF_TCE, liobn, ioba, tceval, count);
  90 }
  91
  92 static inline long plpar_get_term_char(unsigned long termno,
  93                                        unsigned long *len_ret,
  94                                        char *buf_ret)
  95 {
  96         unsigned long *lbuf = (unsigned long *)buf_ret;  /* ToDo: alignment? */
  97         return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0,
  98                            len_ret, lbuf+0, lbuf+1);
  99 }
 100
 101 static inline long plpar_put_term_char(unsigned long termno,
 102                                        unsigned long len,
 103                                        const char *buffer)
 104 {
 105         unsigned long *lbuf = (unsigned long *)buffer;  /* ToDo: alignment? */
 106         return plpar_hcall_norets(H_PUT_TERM_CHAR, termno, len, lbuf[0],
 107                                   lbuf[1]);
 108 }
 109
 110
 111 #endif /* _PPC64_PLPAR_WRAPPERS_H */