1/*
2 * Copyright (C) 2010 Loongson Inc. & Lemote Inc. &
3 *                    Insititute of Computing Technology
4 * Author:  Xiang Gao, gaoxiang@ict.ac.cn
5 *          Huacai Chen, chenhc@lemote.com
6 *          Xiaofu Meng, Shuangshuang Zhang
7 *
8 * This program is free software; you can redistribute  it and/or modify it
9 * under  the terms of  the GNU General  Public License as published by the
10 * Free Software Foundation;  either version 2 of the  License, or (at your
11 * option) any later version.
12 */
13#ifndef _ASM_MACH_MMZONE_H
14#define _ASM_MACH_MMZONE_H
15
16#include <boot_param.h>
17#define NODE_ADDRSPACE_SHIFT 44
18#define NODE0_ADDRSPACE_OFFSET 0x000000000000UL
19#define NODE1_ADDRSPACE_OFFSET 0x100000000000UL
20#define NODE2_ADDRSPACE_OFFSET 0x200000000000UL
21#define NODE3_ADDRSPACE_OFFSET 0x300000000000UL
22
23#define pa_to_nid(addr)  (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
24
25#define LEVELS_PER_SLICE 128
26
27struct slice_data {
28	unsigned long irq_enable_mask[2];
29	int level_to_irq[LEVELS_PER_SLICE];
30};
31
32struct hub_data {
33	cpumask_t	h_cpus;
34	unsigned long slice_map;
35	unsigned long irq_alloc_mask[2];
36	struct slice_data slice[2];
37};
38
39struct node_data {
40	struct pglist_data pglist;
41	struct hub_data hub;
42	cpumask_t cpumask;
43};
44
45extern struct node_data *__node_data[];
46
47#define NODE_DATA(n)		(&__node_data[(n)]->pglist)
48#define hub_data(n)		(&__node_data[(n)]->hub)
49
50extern void setup_zero_pages(void);
51extern void __init prom_init_numa_memory(void);
52
53#endif /* _ASM_MACH_MMZONE_H */
54