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libcpu
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aarch64
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common
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armv8.h

armv8.h 1.8 KB
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  1. /*
    2. 

  2.  * Copyright (c) 2006-2021, RT-Thread Development Team
    3. 

  3.  *
    4. 

  4.  * SPDX-License-Identifier: Apache-2.0
    5. 

  5.  *
    6. 

  6.  * Change Logs:
    7. 

  7.  * Date           Author       Notes
    8. 

  8.  * 2011-09-15     Bernard      first version
    9. 

  9.  * 2021-12-28     GuEe-GUI     add fpu support
    10. 

  10.  */
    11. 

  11. 

  12. #ifndef __ARMV8_H__
    13. 

  13. #define __ARMV8_H__
    14. 

  14. 

  15. #include <rtdef.h>
    16. 

  16. 

  17. /* the exception stack without VFP registers */
    18. 

  18. struct rt_hw_exp_stack
    19. 

  19. {
    20. 

  20.     unsigned long long pc;
    21. 

  21.     unsigned long long spsr;
    22. 

  22.     unsigned long long x30;
    23. 

  23.     unsigned long long xzr;
    24. 

  24.     unsigned long long fpcr;
    25. 

  25.     unsigned long long fpsr;
    26. 

  26.     unsigned long long x28;
    27. 

  27.     unsigned long long x29;
    28. 

  28.     unsigned long long x26;
    29. 

  29.     unsigned long long x27;
    30. 

  30.     unsigned long long x24;
    31. 

  31.     unsigned long long x25;
    32. 

  32.     unsigned long long x22;
    33. 

  33.     unsigned long long x23;
    34. 

  34.     unsigned long long x20;
    35. 

  35.     unsigned long long x21;
    36. 

  36.     unsigned long long x18;
    37. 

  37.     unsigned long long x19;
    38. 

  38.     unsigned long long x16;
    39. 

  39.     unsigned long long x17;
    40. 

  40.     unsigned long long x14;
    41. 

  41.     unsigned long long x15;
    42. 

  42.     unsigned long long x12;
    43. 

  43.     unsigned long long x13;
    44. 

  44.     unsigned long long x10;
    45. 

  45.     unsigned long long x11;
    46. 

  46.     unsigned long long x8;
    47. 

  47.     unsigned long long x9;
    48. 

  48.     unsigned long long x6;
    49. 

  49.     unsigned long long x7;
    50. 

  50.     unsigned long long x4;
    51. 

  51.     unsigned long long x5;
    52. 

  52.     unsigned long long x2;
    53. 

  53.     unsigned long long x3;
    54. 

  54.     unsigned long long x0;
    55. 

  55.     unsigned long long x1;
    56. 

  56. 

  57.     unsigned long long fpu[16];
    58. 

  58. };
    59. 

  59. 

  60. #define SP_ELx                      ( ( unsigned long long ) 0x01 )
    61. 

  61. #define SP_EL0                      ( ( unsigned long long ) 0x00 )
    62. 

  62. #define PSTATE_EL1                  ( ( unsigned long long ) 0x04 )
    63. 

  63. #define PSTATE_EL2                  ( ( unsigned long long ) 0x08 )
    64. 

  64. #define PSTATE_EL3                  ( ( unsigned long long ) 0x0c )
    65. 

  65. 

  66. rt_ubase_t rt_hw_get_current_el(void);
    67. 

  67. void rt_hw_set_elx_env(void);
    68. 

  68. void rt_hw_set_current_vbar(rt_ubase_t addr);
    69. 

  69. 

  70. #endif
    71.