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cache-nop.S

cache-nop.S 1.2 KB
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  1. /* SPDX-License-Identifier: GPL-2.0-only */
    2. 

  2. #include <linux/linkage.h>
    3. 

  3. #include <linux/init.h>
    4. 

  4. #include <linux/cfi_types.h>
    5. 

  5. #include <asm/assembler.h>
    6. 

  6. 

  7. #include "proc-macros.S"
    8. 

  8. 

  9. /*
    10. 

  10.  * These are all open-coded instead of aliased, to make clear
    11. 

  11.  * what is going on here: all functions are stubbed out.
    12. 

  12.  */
    13. 

  13. SYM_TYPED_FUNC_START(nop_flush_icache_all)
    14. 

  14. 	ret	lr
    15. 

  15. SYM_FUNC_END(nop_flush_icache_all)
    16. 

  16. 

  17. SYM_TYPED_FUNC_START(nop_flush_kern_cache_all)
    18. 

  18. 	ret	lr
    19. 

  19. SYM_FUNC_END(nop_flush_kern_cache_all)
    20. 

  20. 

  21. SYM_TYPED_FUNC_START(nop_flush_user_cache_all)
    22. 

  22. 	ret	lr
    23. 

  23. SYM_FUNC_END(nop_flush_user_cache_all)
    24. 

  24. 

  25. SYM_TYPED_FUNC_START(nop_flush_user_cache_range)
    26. 

  26. 	ret	lr
    27. 

  27. SYM_FUNC_END(nop_flush_user_cache_range)
    28. 

  28. 

  29. SYM_TYPED_FUNC_START(nop_coherent_kern_range)
    30. 

  30. 	ret	lr
    31. 

  31. SYM_FUNC_END(nop_coherent_kern_range)
    32. 

  32. 

  33. SYM_TYPED_FUNC_START(nop_coherent_user_range)
    34. 

  34. 	mov	r0, 0
    35. 

  35. 	ret	lr
    36. 

  36. SYM_FUNC_END(nop_coherent_user_range)
    37. 

  37. 

  38. SYM_TYPED_FUNC_START(nop_flush_kern_dcache_area)
    39. 

  39. 	ret	lr
    40. 

  40. SYM_FUNC_END(nop_flush_kern_dcache_area)
    41. 

  41. 

  42. SYM_TYPED_FUNC_START(nop_dma_flush_range)
    43. 

  43. 	ret	lr
    44. 

  44. SYM_FUNC_END(nop_dma_flush_range)
    45. 

  45. 

  46. SYM_TYPED_FUNC_START(nop_dma_map_area)
    47. 

  47. 	ret	lr
    48. 

  48. SYM_FUNC_END(nop_dma_map_area)
    49. 

  49. 

  50. SYM_TYPED_FUNC_START(nop_dma_unmap_area)
    51. 

  51. 	ret	lr
    52. 

  52. SYM_FUNC_END(nop_dma_unmap_area)
    53.