arch/powerpc/include/asm/mmzone.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
   4  *
   5  * PowerPC64 port:
   6  * Copyright (C) 2002 Anton Blanchard, IBM Corp.
   7  */
   8 #ifndef _ASM_MMZONE_H_
   9 #define _ASM_MMZONE_H_
  10 #ifdef __KERNEL__
  11
  12 #include <linux/cpumask.h>
  13
  14 /*
  15  * generic non-linear memory support:
  16  *
  17  * 1) we will not split memory into more chunks than will fit into the
  18  *    flags field of the struct page
  19  */
  20
  21 #ifdef CONFIG_NUMA
  22
  23 /*
  24  * Following are specific to this numa platform.
  25  */
  26
  27 extern int numa_cpu_lookup_table[];
  28 extern cpumask_var_t node_to_cpumask_map[];
  29 #ifdef CONFIG_MEMORY_HOTPLUG
  30 extern unsigned long max_pfn;
  31 u64 memory_hotplug_max(void);
  32 #else
  33 #define memory_hotplug_max() memblock_end_of_DRAM()
  34 #endif
  35
  36 #else
  37 #define memory_hotplug_max() memblock_end_of_DRAM()
  38 #endif /* CONFIG_NUMA */
  39
  40 #endif /* __KERNEL__ */
  41 #endif /* _ASM_MMZONE_H_ */