tools/testing/selftests/powerpc/tm/tm-syscall-asm.S

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #include <basic_asm.h>
   3 #include <asm/unistd.h>
   4
   5         .text
   6 FUNC_START(getppid_tm_active)
   7         tbegin.
   8         beq 1f
   9         li      r0, __NR_getppid
  10         sc
  11         tend.
  12         blr
  13 1:
  14         li      r3, -1
  15         blr
  16
  17 FUNC_START(getppid_tm_suspended)
  18         tbegin.
  19         beq 1f
  20         li      r0, __NR_getppid
  21         tsuspend.
  22         sc
  23         tresume.
  24         tend.
  25         blr
  26 1:
  27         li      r3, -1
  28         blr
  29
  30
  31 .macro scv level
  32         .long (0x44000001 | (\level) << 5)
  33 .endm
  34
  35 FUNC_START(getppid_scv_tm_active)
  36         PUSH_BASIC_STACK(0)
  37         tbegin.
  38         beq 1f
  39         li      r0, __NR_getppid
  40         scv     0
  41         tend.
  42         POP_BASIC_STACK(0)
  43         blr
  44 1:
  45         li      r3, -1
  46         POP_BASIC_STACK(0)
  47         blr
  48
  49 FUNC_START(getppid_scv_tm_suspended)
  50         PUSH_BASIC_STACK(0)
  51         tbegin.
  52         beq 1f
  53         li      r0, __NR_getppid
  54         tsuspend.
  55         scv     0
  56         tresume.
  57         tend.
  58         POP_BASIC_STACK(0)
  59         blr
  60 1:
  61         li      r3, -1
  62         POP_BASIC_STACK(0)
  63         blr