arch/x86/include/asm/alternative-asm.h

   1 #ifdef __ASSEMBLY__
   2
   3 #include <asm/asm.h>
   4
   5 #ifdef CONFIG_SMP
   6         .macro LOCK_PREFIX
   7 1:      lock
   8         .section .smp_locks,"a"
   9         .balign 4
  10         .long 1b - .
  11         .previous
  12         .endm
  13 #else
  14         .macro LOCK_PREFIX
  15         .endm
  16 #endif
  17
  18 .macro altinstruction_entry orig alt feature orig_len alt_len
  19         .align 8
  20         .long \orig - .
  21         .long \alt - .
  22         .word \feature
  23         .byte \orig_len
  24         .byte \alt_len
  25 .endm
  26
  27 #endif  /*  __ASSEMBLY__  */