memory.h 1.6 KB

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  1. /*
  2. * GRUB -- GRand Unified Bootloader
  3. * Copyright (C) 2009 Free Software Foundation, Inc.
  4. *
  5. * GRUB is free software: you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation, either version 3 of the License, or
  8. * (at your option) any later version.
  9. *
  10. * GRUB is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. *
  15. * You should have received a copy of the GNU General Public License
  16. * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
  17. */
  18. #ifndef GRUB_MEMORY_CPU_HEADER
  19. #define GRUB_MEMORY_CPU_HEADER 1
  20. #ifndef ASM_FILE
  21. #include <grub/symbol.h>
  22. #include <grub/err.h>
  23. #include <grub/types.h>
  24. #endif
  25. #define GRUB_ARCH_LOWMEMVSTART 0x80000000
  26. #define GRUB_ARCH_LOWMEMPSTART 0x00000000
  27. #define GRUB_ARCH_LOWMEMMAXSIZE 0x10000000
  28. #define GRUB_ARCH_HIGHMEMPSTART 0x10000000
  29. #ifndef ASM_FILE
  30. typedef grub_addr_t grub_phys_addr_t;
  31. static inline grub_phys_addr_t
  32. grub_vtop (void *a)
  33. {
  34. return ((grub_phys_addr_t) a) & 0x1fffffff;
  35. }
  36. static inline void *
  37. grub_map_memory (grub_phys_addr_t a, grub_size_t size __attribute__ ((unused)))
  38. {
  39. return (void *) (a | 0x80000000);
  40. }
  41. static inline void
  42. grub_unmap_memory (void *a __attribute__ ((unused)),
  43. grub_size_t size __attribute__ ((unused)))
  44. {
  45. }
  46. grub_uint64_t grub_mmap_get_lower (void);
  47. grub_uint64_t grub_mmap_get_upper (void);
  48. #endif
  49. #endif