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git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/asm-m68k/virtconvert.h
1 #ifndef __VIRT_CONVERT__
2 #define __VIRT_CONVERT__
5 * Macros used for converting between virtual and physical mappings.
10 #include <linux/compiler.h>
11 #include <linux/mmzone.h>
12 #include <asm/setup.h>
16 * Change virtual addresses to physical addresses and vv.
18 static inline unsigned long virt_to_phys(void *address
)
23 static inline void *phys_to_virt(unsigned long address
)
28 /* Permanent address of a page. */
29 #ifdef CONFIG_SINGLE_MEMORY_CHUNK
30 #define page_to_phys(page) \
31 __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT))
33 #define page_to_phys(_page) ({ \
34 struct page *__page = _page; \
35 struct pglist_data *pgdat; \
36 pgdat = pg_data_table[page_to_nid(__page)]; \
37 page_to_pfn(__page) << PAGE_SHIFT; \
42 * IO bus memory addresses are 1:1 with the physical address,
44 #define virt_to_bus virt_to_phys
45 #define bus_to_virt phys_to_virt