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

   1 /*
   2  * Copyright (C) 2010 Loongson Inc. & Lemote Inc. &
   3  *                    Institute 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
  27 struct slice_data {
  28         unsigned long irq_enable_mask[2];
  29         int level_to_irq[LEVELS_PER_SLICE];
  30 };
  31
  32 struct 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
  39 struct node_data {
  40         struct pglist_data pglist;
  41         struct hub_data hub;
  42         cpumask_t cpumask;
  43 };
  44
  45 extern 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
  50 extern void setup_zero_pages(void);
  51 extern void __init prom_init_numa_memory(void);
  52
  53 #endif /* _ASM_MACH_MMZONE_H */