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kernel/linux-rt-4.4.41/arch/xtensa/include/asm/sysmem.h 850 Bytes
5113f6f70   김현기   kernel add
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  /*
   * sysmem-related prototypes.
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * Copyright (C) 2014 Cadence Design Systems Inc.
   */
  
  #ifndef _XTENSA_SYSMEM_H
  #define _XTENSA_SYSMEM_H
  
  #define SYSMEM_BANKS_MAX 31
  
  struct meminfo {
  	unsigned long start;
  	unsigned long end;
  };
  
  /*
   * Bank array is sorted by .start.
   * Banks don't overlap and there's at least one page gap
   * between adjacent bank entries.
   */
  struct sysmem_info {
  	int nr_banks;
  	struct meminfo bank[SYSMEM_BANKS_MAX];
  };
  
  extern struct sysmem_info sysmem;
  
  int add_sysmem_bank(unsigned long start, unsigned long end);
  int mem_reserve(unsigned long, unsigned long, int);
  void bootmem_init(void);
  void zones_init(void);
  
  #endif /* _XTENSA_SYSMEM_H */