From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- arch/m68k/include/asm/virtconvert.h | 43 +++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 arch/m68k/include/asm/virtconvert.h (limited to 'arch/m68k/include/asm/virtconvert.h') diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h new file mode 100644 index 000000000..0a27905b0 --- /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 +#include +#include +#include + +/* + * 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 -- cgit v1.2.3