qemu/roms/SLOF/lib/libhvcall/hvcall.S

   1 #define _ASM
   2 #define __ASSEMBLY__
   3 #include "macros.h"
   4 #include "libhvcall.h"
   5 #include <termctrl.h>
   6 #include <product.h>
   7
   8 #define HVCALL                  .long 0x44000022
   9         .text
  10         .align  3
  11
  12 ENTRY(get_print_banner)
  13         LOAD32(r4, print_version)
  14         LOAD32(r5, print_version_end)
  15         std     r4,0(r3)
  16         std     r5,8(r3)
  17         blr
  18
  19 ENTRY(hv_generic)
  20         HVCALL
  21         blr
  22
  23 /* r3 = char, r4 = hvtermno */
  24 ENTRY(hv_putchar)
  25         sldi    r6,r3,(24+32)
  26         li      r3,H_PUT_TERM_CHAR
  27         li      r5,1
  28         HVCALL
  29         blr
  30
  31 /* r3 = hvtermno */
  32 ENTRY(hv_getchar)
  33         mflr    r10
  34         bl      .hv_haschar
  35         mtlr    r10
  36         cmpwi   cr0,r3,0
  37         beqlr
  38         lis     r9,inbuf@h
  39         ori     r9,r9,inbuf@l
  40         lwz     r4,20(r9)
  41         lbzx    r3,r4,r9
  42         addi    r4,r4,1
  43         stw     r4,20(r9)
  44         blr
  45
  46 /* r3 = hvtermno */
  47 ENTRY(hv_haschar)
  48         mr      r4,r3
  49         li      r3,-1
  50         lis     r9,inbuf@h
  51         ori     r9,r9,inbuf@l
  52         lwz     r5,16(r9)
  53         lwz     r6,20(r9)
  54         cmplw   cr0,r5,r6
  55         bnelr
  56         li      r3,H_GET_TERM_CHAR
  57         HVCALL
  58         lis     r9,inbuf@h
  59         ori     r9,r9,inbuf@l
  60         stw     r4,16(r9)
  61         li      r3,0
  62         stw     r3,20(r9)
  63         cmplwi  cr0,r4,0
  64         beqlr
  65         li      r3,-1
  66         std     r5,0(r9)
  67         std     r6,8(r9)
  68         blr
  69
  70 ENTRY(hv_send_crq)
  71         ld      r5,0(r4)
  72         ld      r6,8(r4)
  73         mr      r4,r3
  74         li      r3,H_SEND_CRQ
  75         HVCALL
  76         blr
  77
  78 ENTRY(hv_send_logical_lan)
  79         li      r11,0   /* no continue token for now */
  80         mr      r10,r9
  81         mr      r9,r8
  82         mr      r8,r7
  83         mr      r7,r6
  84         mr      r6,r5
  85         mr      r5,r4
  86         mr      r4,r3
  87         li      r3,H_SEND_LOGICAL_LAN
  88         HVCALL
  89         blr
  90
  91 ENTRY(hv_logical_ci_load)
  92         mr      r5,r4
  93         mr      r4,r3
  94         li      r3,H_LOGICAL_CI_LOAD
  95         HVCALL
  96         cmpdi   cr0,r3,0
  97         mr      r3,r4
  98         beqlr
  99         li      r3,-1
 100         blr
 101
 102 ENTRY(hv_logical_ci_store)
 103         mr      r6,r5
 104         mr      r5,r4
 105         mr      r4,r3
 106         li      r3,H_LOGICAL_CI_STORE
 107         HVCALL
 108         blr
 109
 110 ENTRY(hv_logical_memop)
 111         mr      r8,r7
 112         mr      r7,r6
 113         mr      r6,r5
 114         mr      r5,r4
 115         mr      r4,r3
 116         lis     r3,KVMPPC_H_LOGICAL_MEMOP@h
 117         ori     r3,r3,KVMPPC_H_LOGICAL_MEMOP@l
 118         HVCALL
 119         blr
 120
 121 ENTRY(hv_cas)
 122         mr      r6,r5
 123         mr      r5,r4
 124         mr      r4,r3
 125         lis     r3,KVMPPC_H_CAS@h
 126         ori     r3,r3,KVMPPC_H_CAS@l
 127         HVCALL
 128         blr
 129
 130         .section ".bss"
 131 inbuf:  .space  16
 132 inlen:  .space  4
 133 inpos:  .space  4
 134         .text