include/asm-arm/arch-arc/memory.h

   1 /*
   2  * linux/include/asm-arm/arch-arc/memory.h
   3  *
   4  * Copyright (c) 1996-1999 Russell King.
   5  *
   6  * Changelog:
   7  *  22-Nov-1996 RMK     Created
   8  *  21-Mar-1999 RMK     Renamed to memory.h
   9  *              RMK     Moved PAGE_OFFSET and TASK_SIZE here
  10  */
  11 #ifndef __ASM_ARCH_MEMORY_H
  12 #define __ASM_ARCH_MEMORY_H
  13
  14 /*
  15  * User space: 26MB
  16  */
  17 #define TASK_SIZE       (0x01a00000UL)
  18 #define TASK_SIZE_26    (0x01a00000UL)
  19
  20 /*
  21  * Page offset: 32MB
  22  */
  23 #define PAGE_OFFSET     (0x02000000UL)
  24 #define PHYS_OFFSET     (0x02000000UL)
  25
  26 #define __virt_to_phys__is_a_macro
  27 #define __virt_to_phys(vpage) vpage
  28 #define __phys_to_virt__is_a_macro
  29 #define __phys_to_virt(ppage) ppage
  30
  31 /*
  32  * Virtual view <-> DMA view memory address translations
  33  * virt_to_bus: Used to translate the virtual address to an
  34  *              address suitable to be passed to set_dma_addr
  35  * bus_to_virt: Used to convert an address for DMA operations
  36  *              to an address that the kernel can use.
  37  */
  38 #define __virt_to_bus__is_a_macro
  39 #define __virt_to_bus(x)        (x)
  40 #define __bus_to_virt__is_a_macro
  41 #define __bus_to_virt(x)        (x)
  42
  43 #endif