memory.h 845 B

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /*
  3. * arch/arm/mach-rpc/include/mach/memory.h
  4. *
  5. * Copyright (C) 1996,1997,1998 Russell King.
  6. *
  7. * Changelog:
  8. * 20-Oct-1996 RMK Created
  9. * 31-Dec-1997 RMK Fixed definitions to reduce warnings
  10. * 11-Jan-1998 RMK Uninlined to reduce hits on cache
  11. * 08-Feb-1998 RMK Added __virt_to_bus and __bus_to_virt
  12. * 21-Mar-1999 RMK Renamed to memory.h
  13. * RMK Added TASK_SIZE and PAGE_OFFSET
  14. */
  15. #ifndef __ASM_ARCH_MEMORY_H
  16. #define __ASM_ARCH_MEMORY_H
  17. /*
  18. * Cache flushing area - ROM
  19. */
  20. #define FLUSH_BASE_PHYS 0x00000000
  21. #define FLUSH_BASE 0xdf000000
  22. /*
  23. * Sparsemem support. Each section is a maximum of 64MB. The sections
  24. * are offset by 128MB and can cover 128MB, so that gives us a maximum
  25. * of 29 physmem bits.
  26. */
  27. #define MAX_PHYSMEM_BITS 29
  28. #define SECTION_SIZE_BITS 26
  29. #endif