arcregs.h 1.5 KB

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  1. /*
  2. * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. All rights reserved.
  3. *
  4. * SPDX-License-Identifier: GPL-2.0+
  5. */
  6. #ifndef _ASM_ARC_ARCREGS_H
  7. #define _ASM_ARC_ARCREGS_H
  8. /*
  9. * ARC architecture has additional address space - auxiliary registers.
  10. * These registers are mostly used for configuration purposes.
  11. * These registers are not memory mapped and special commands are used for
  12. * access: "lr"/"sr".
  13. */
  14. #define ARC_AUX_IDENTITY 0x04
  15. #define ARC_AUX_STATUS32 0x0a
  16. /* Instruction cache related auxiliary registers */
  17. #define ARC_AUX_IC_IVIC 0x10
  18. #define ARC_AUX_IC_CTRL 0x11
  19. #define ARC_AUX_IC_IVIL 0x19
  20. #if (CONFIG_ARC_MMU_VER > 2)
  21. #define ARC_AUX_IC_PTAG 0x1E
  22. #endif
  23. /* Timer related auxiliary registers */
  24. #define ARC_AUX_TIMER0_CNT 0x21 /* Timer 0 count */
  25. #define ARC_AUX_TIMER0_CTRL 0x22 /* Timer 0 control */
  26. #define ARC_AUX_TIMER0_LIMIT 0x23 /* Timer 0 limit */
  27. #define ARC_AUX_INTR_VEC_BASE 0x25
  28. /* Data cache related auxiliary registers */
  29. #define ARC_AUX_DC_IVDC 0x47
  30. #define ARC_AUX_DC_CTRL 0x48
  31. #define ARC_AUX_DC_IVDL 0x4A
  32. #define ARC_AUX_DC_FLSH 0x4B
  33. #define ARC_AUX_DC_FLDL 0x4C
  34. #if (CONFIG_ARC_MMU_VER > 2)
  35. #define ARC_AUX_DC_PTAG 0x5C
  36. #endif
  37. #ifndef __ASSEMBLY__
  38. /* Accessors for auxiliary registers */
  39. #define read_aux_reg(reg) __builtin_arc_lr(reg)
  40. /* gcc builtin sr needs reg param to be long immediate */
  41. #define write_aux_reg(reg_immed, val) \
  42. __builtin_arc_sr((unsigned int)val, reg_immed)
  43. #endif /* __ASSEMBLY__ */
  44. #endif /* _ASM_ARC_ARCREGS_H */