xref: /linux/tools/include/linux/mm.h (revision 39f64e40) 
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
phys_to_virt(unsigned long address)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
virt_to_phys(volatile void * address)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 
totalram_pages_inc(void)36 static inline void totalram_pages_inc(void)
37 {
38 }
39 
totalram_pages_add(long count)40 static inline void totalram_pages_add(long count)
41 {
42 }
43 
early_pfn_to_nid(unsigned long pfn)44 static inline int early_pfn_to_nid(unsigned long pfn)
45 {
46 	return 0;
47 }
48 
49 #endif
50