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 */ 25