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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/m68k/include/asm/virtconvert.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/m68k/include/asm/virtconvert.h')
-rw-r--r-- | arch/m68k/include/asm/virtconvert.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h new file mode 100644 index 0000000000..0a27905b00 --- /dev/null +++ b/arch/m68k/include/asm/virtconvert.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __VIRT_CONVERT__ +#define __VIRT_CONVERT__ + +/* + * Macros used for converting between virtual and physical mappings. + */ + +#ifdef __KERNEL__ + +#include <linux/compiler.h> +#include <linux/mmzone.h> +#include <asm/setup.h> +#include <asm/page.h> + +/* + * Change virtual addresses to physical addresses and vv. + */ +#define virt_to_phys virt_to_phys +static inline unsigned long virt_to_phys(void *address) +{ + return __pa(address); +} + +#define phys_to_virt phys_to_virt +static inline void *phys_to_virt(unsigned long address) +{ + return __va(address); +} + +/* Permanent address of a page. */ +#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) + +/* + * IO bus memory addresses are 1:1 with the physical address, + * deprecated globally but still used on two machines. + */ +#if defined(CONFIG_AMIGA) || defined(CONFIG_VME) +#define virt_to_bus virt_to_phys +#endif + +#endif +#endif |