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

INCLUDED FROM

   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_MMZONE_H
  10 #define _ASM_MACH_MMZONE_H
  11 
  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
  18 
  19 #define pa_to_nid(addr)  (((addr) & 0xf00000000000) >> NODE_ADDRSPACE_SHIFT)
  20 #define nid_to_addrbase(nid) ((nid) << NODE_ADDRSPACE_SHIFT)
  21 
  22 #define LEVELS_PER_SLICE 128
  23 
  24 struct slice_data {
  25         unsigned long irq_enable_mask[2];
  26         int level_to_irq[LEVELS_PER_SLICE];
  27 };
  28 
  29 struct hub_data {
  30         cpumask_t       h_cpus;
  31         unsigned long slice_map;
  32         unsigned long irq_alloc_mask[2];
  33         struct slice_data slice[2];
  34 };
  35 
  36 struct node_data {
  37         struct pglist_data pglist;
  38         struct hub_data hub;
  39         cpumask_t cpumask;
  40 };
  41 
  42 extern struct node_data *__node_data[];
  43 
  44 #define NODE_DATA(n)            (&__node_data[(n)]->pglist)
  45 #define hub_data(n)             (&__node_data[(n)]->hub)
  46 
  47 extern void setup_zero_pages(void);
  48 extern void __init prom_init_numa_memory(void);
  49 
  50 #endif /* _ASM_MACH_MMZONE_H */