tools/include/linux/mm.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _TOOLS_LINUX_MM_H
   3 #define _TOOLS_LINUX_MM_H
   4
   5 #include <linux/align.h>
   6 #include <linux/mmzone.h>
   7
   8 #define PAGE_SHIFT              12
   9 #define PAGE_SIZE               (_AC(1, UL) << PAGE_SHIFT)
  10 #define PAGE_MASK               (~(PAGE_SIZE - 1))
  11
  12 #define PHYS_ADDR_MAX   (~(phys_addr_t)0)
  13
  14 #define PAGE_ALIGN(addr) ALIGN(addr, PAGE_SIZE)
  15 #define PAGE_ALIGN_DOWN(addr) ALIGN_DOWN(addr, PAGE_SIZE)
  16
  17 #define __va(x) ((void *)((unsigned long)(x)))
  18 #define __pa(x) ((unsigned long)(x))
  19
  20 #define pfn_to_page(pfn) ((void *)((pfn) * PAGE_SIZE))
  21
  22 #define phys_to_virt phys_to_virt
  23 static inline void *phys_to_virt(unsigned long address)
  24 {
  25         return __va(address);
  26 }
  27
  28 #define virt_to_phys virt_to_phys
  29 static inline phys_addr_t virt_to_phys(volatile void *address)
  30 {
  31         return (phys_addr_t)address;
  32 }
  33
  34 void reserve_bootmem_region(phys_addr_t start, phys_addr_t end, int nid);
  35
  36 static inline void totalram_pages_inc(void)
  37 {
  38 }
  39
  40 static inline void totalram_pages_add(long count)
  41 {
  42 }
  43
  44 static inline int early_pfn_to_nid(unsigned long pfn)
  45 {
  46         return 0;
  47 }
  48
  49 #endif