From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/m68k/include/asm/virtconvert.h | 43 ++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 kernel/arch/m68k/include/asm/virtconvert.h (limited to 'kernel/arch/m68k/include/asm/virtconvert.h') diff --git a/kernel/arch/m68k/include/asm/virtconvert.h b/kernel/arch/m68k/include/asm/virtconvert.h new file mode 100644 index 000000000..b8a82fb1c --- /dev/null +++ b/kernel/arch/m68k/include/asm/virtconvert.h @@ -0,0 +1,43 @@ +#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. + */ +static inline unsigned long virt_to_phys(void *address) +{ + return __pa(address); +} + +static inline void *phys_to_virt(unsigned long address) +{ + return __va(address); +} + +/* Permanent address of a page. */ +#if defined(CONFIG_MMU) && defined(CONFIG_SINGLE_MEMORY_CHUNK) +#define page_to_phys(page) \ + __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT)) +#else +#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) +#endif + +/* + * IO bus memory addresses are 1:1 with the physical address, + */ +#define virt_to_bus virt_to_phys +#define bus_to_virt phys_to_virt + +#endif +#endif -- cgit 1.2.3-korg