1 /* SPDX-License-Identifier: GPL-2.0-or-later */
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
9 #ifndef _ASM_MACH_MMZONE_H
10 #define _ASM_MACH_MMZONE_H
12 #include <boot_param.h>
13 #define NODE_ADDRSPACE_SHIFT 44
14 #define NODE0_ADDRSPACE_OFFSET 0x000000000000UL
15 #define NODE1_ADDRSPACE_OFFSET 0x100000000000UL
16 #define NODE2_ADDRSPACE_OFFSET 0x200000000000UL
17 #define NODE3_ADDRSPACE_OFFSET 0x300000000000UL
19 #define pa_to_nid(addr) (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
20 #define nid_to_addrbase(nid) ((nid) << NODE_ADDRSPACE_SHIFT)
22 #define LEVELS_PER_SLICE 128
25 unsigned long irq_enable_mask[2];
26 int level_to_irq[LEVELS_PER_SLICE];
31 unsigned long slice_map;
32 unsigned long irq_alloc_mask[2];
33 struct slice_data slice[2];
37 struct pglist_data pglist;
42 extern struct node_data *__node_data[];
44 #define NODE_DATA(n) (&__node_data[(n)]->pglist)
45 #define hub_data(n) (&__node_data[(n)]->hub)
47 extern void setup_zero_pages(void);
48 extern void __init prom_init_numa_memory(void);
50 #endif /* _ASM_MACH_MMZONE_H */