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x86/kaslr: Expose and use the end of the physical memory address space
[linux.git] / 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 void reserve_bootmem_region(phys_addr_t start, phys_addr_t end, int nid);
29
30 static inline void totalram_pages_inc(void)
31 {
32 }
33
34 static inline void totalram_pages_add(long count)
35 {
36 }
37
38 static inline int early_pfn_to_nid(unsigned long pfn)
39 {
40         return 0;
41 }
42
43 #endif
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