hibernate.S 1.4 KB

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  1. /*
  2. * Hibernation support specific for mips - temporary page tables
  3. *
  4. * Licensed under the GPLv2
  5. *
  6. * Copyright (C) 2009 Lemote Inc.
  7. * Author: Hu Hongbing <huhb@lemote.com>
  8. * Wu Zhangjin <wuzhangjin@gmail.com>
  9. */
  10. #include <asm/asm-offsets.h>
  11. #include <asm/page.h>
  12. #include <asm/regdef.h>
  13. #include <asm/asm.h>
  14. .text
  15. LEAF(swsusp_arch_suspend)
  16. PTR_LA t0, saved_regs
  17. PTR_S ra, PT_R31(t0)
  18. PTR_S sp, PT_R29(t0)
  19. PTR_S fp, PT_R30(t0)
  20. PTR_S gp, PT_R28(t0)
  21. PTR_S s0, PT_R16(t0)
  22. PTR_S s1, PT_R17(t0)
  23. PTR_S s2, PT_R18(t0)
  24. PTR_S s3, PT_R19(t0)
  25. PTR_S s4, PT_R20(t0)
  26. PTR_S s5, PT_R21(t0)
  27. PTR_S s6, PT_R22(t0)
  28. PTR_S s7, PT_R23(t0)
  29. j swsusp_save
  30. END(swsusp_arch_suspend)
  31. LEAF(swsusp_arch_resume)
  32. /* Avoid TLB mismatch during and after kernel resume */
  33. jal local_flush_tlb_all
  34. PTR_L t0, restore_pblist
  35. 0:
  36. PTR_L t1, PBE_ADDRESS(t0) /* source */
  37. PTR_L t2, PBE_ORIG_ADDRESS(t0) /* destination */
  38. PTR_ADDU t3, t1, PAGE_SIZE
  39. 1:
  40. REG_L t8, (t1)
  41. REG_S t8, (t2)
  42. PTR_ADDIU t1, t1, SZREG
  43. PTR_ADDIU t2, t2, SZREG
  44. bne t1, t3, 1b
  45. PTR_L t0, PBE_NEXT(t0)
  46. bnez t0, 0b
  47. PTR_LA t0, saved_regs
  48. PTR_L ra, PT_R31(t0)
  49. PTR_L sp, PT_R29(t0)
  50. PTR_L fp, PT_R30(t0)
  51. PTR_L gp, PT_R28(t0)
  52. PTR_L s0, PT_R16(t0)
  53. PTR_L s1, PT_R17(t0)
  54. PTR_L s2, PT_R18(t0)
  55. PTR_L s3, PT_R19(t0)
  56. PTR_L s4, PT_R20(t0)
  57. PTR_L s5, PT_R21(t0)
  58. PTR_L s6, PT_R22(t0)
  59. PTR_L s7, PT_R23(t0)
  60. PTR_LI v0, 0x0
  61. jr ra
  62. END(swsusp_arch_resume)