/arch/microblaze/include/asm/current.h

https://bitbucket.org/cresqo/cm7-p500-kernel · C Header · 29 lines · 8 code · 4 blank · 17 comment · 0 complexity · 134aee03555235d87481e1d4e6894ab8 MD5 · raw file 

    

  1. /*
    2. 

  2.  * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
    3. 

  3.  * Copyright (C) 2008-2009 PetaLogix
    4. 

  4.  * Copyright (C) 2006 Atmark Techno, Inc.
    5. 

  5.  *
    6. 

  6.  * This file is subject to the terms and conditions of the GNU General Public
    7. 

  7.  * License. See the file "COPYING" in the main directory of this archive
    8. 

  8.  * for more details.
    9. 

  9.  */
    10. 

  10. 

  11. #ifndef _ASM_MICROBLAZE_CURRENT_H
    12. 

  12. #define _ASM_MICROBLAZE_CURRENT_H
    13. 

  13. 

  14. /*
    15. 

  15.  * Register used to hold the current task pointer while in the kernel.
    16. 

  16.  * Any `call clobbered' register without a special meaning should be OK,
    17. 

  17.  * but check asm/microblaze/kernel/entry.S to be sure.
    18. 

  18.  */
    19. 

  19. #define CURRENT_TASK	r31
    20. 

  20. # ifndef __ASSEMBLY__
    21. 

  21. /*
    22. 

  22.  * Dedicate r31 to keeping the current task pointer
    23. 

  23.  */
    24. 

  24. register struct task_struct *current asm("r31");
    25. 

  25. 

  26. # define get_current()	current
    27. 

  27. # endif /* __ASSEMBLY__ */
    28. 

  28. 

  29. #endif /* _ASM_MICROBLAZE_CURRENT_H */
    30.