arch/sh/include/asm/bl_bit_64.h

   1 /*
   2  * Copyright (C) 2000, 2001  Paolo Alberelli
   3  * Copyright (C) 2003  Paul Mundt
   4  * Copyright (C) 2004  Richard Curnow
   5  *
   6  * This file is subject to the terms and conditions of the GNU General Public
   7  * License.  See the file "COPYING" in the main directory of this archive
   8  * for more details.
   9  */
  10 #ifndef __ASM_SH_BL_BIT_64_H
  11 #define __ASM_SH_BL_BIT_64_H
  12
  13 #include <asm/processor.h>
  14
  15 #define SR_BL_LL        0x0000000010000000LL
  16
  17 static inline void set_bl_bit(void)
  18 {
  19         unsigned long long __dummy0, __dummy1 = SR_BL_LL;
  20
  21         __asm__ __volatile__("getcon    " __SR ", %0\n\t"
  22                              "or        %0, %1, %0\n\t"
  23                              "putcon    %0, " __SR "\n\t"
  24                              : "=&r" (__dummy0)
  25                              : "r" (__dummy1));
  26
  27 }
  28
  29 static inline void clear_bl_bit(void)
  30 {
  31         unsigned long long __dummy0, __dummy1 = ~SR_BL_LL;
  32
  33         __asm__ __volatile__("getcon    " __SR ", %0\n\t"
  34                              "and       %0, %1, %0\n\t"
  35                              "putcon    %0, " __SR "\n\t"
  36                              : "=&r" (__dummy0)
  37                              : "r" (__dummy1));
  38 }
  39
  40 #endif /* __ASM_SH_BL_BIT_64_H */