arch/mips/include/asm/mach-loongson64/mmzone.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 /*
   3  * Copyright (C) 2010 Loongson Inc. & Lemote Inc. &
   4  *                    Institute of Computing Technology
   5  * Author:  Xiang Gao, gaoxiang@ict.ac.cn
   6  *          Huacai Chen, chenhc@lemote.com
   7  *          Xiaofu Meng, Shuangshuang Zhang
   8  */
   9 #ifndef _ASM_MACH_LOONGSON64_MMZONE_H
  10 #define _ASM_MACH_LOONGSON64_MMZONE_H
  11
  12 #define NODE_ADDRSPACE_SHIFT 44
  13
  14 #define pa_to_nid(addr)  (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
  15 #define nid_to_addrbase(nid) ((unsigned long)(nid) << NODE_ADDRSPACE_SHIFT)
  16
  17 extern struct pglist_data *__node_data[];
  18
  19 #define NODE_DATA(n)            (__node_data[n])
  20
  21 extern void setup_zero_pages(void);
  22 extern void __init prom_init_numa_memory(void);
  23
  24 #endif /* _ASM_MACH_MMZONE_H */