diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/frv/include/asm/mmu_context.h | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
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 <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/frv/include/asm/mmu_context.h')
| -rw-r--r-- | kernel/arch/frv/include/asm/mmu_context.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/kernel/arch/frv/include/asm/mmu_context.h b/kernel/arch/frv/include/asm/mmu_context.h new file mode 100644 index 000000000..c7daa3951 --- /dev/null +++ b/kernel/arch/frv/include/asm/mmu_context.h @@ -0,0 +1,50 @@ +/* mmu_context.h: MMU context management routines + * + * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#ifndef _ASM_MMU_CONTEXT_H +#define _ASM_MMU_CONTEXT_H + +#include <asm/setup.h> +#include <asm/page.h> +#include <asm/pgalloc.h> +#include <asm-generic/mm_hooks.h> + +static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) +{ +} + +#ifdef CONFIG_MMU +extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm); +extern void change_mm_context(mm_context_t *old, mm_context_t *ctx, pgd_t *_pgd); +extern void destroy_context(struct mm_struct *mm); + +#else +#define init_new_context(tsk, mm) ({ 0; }) +#define change_mm_context(old, ctx, _pml4) do {} while(0) +#define destroy_context(mm) do {} while(0) +#endif + +#define switch_mm(prev, next, tsk) \ +do { \ + if (prev != next) \ + change_mm_context(&prev->context, &next->context, next->pgd); \ +} while(0) + +#define activate_mm(prev, next) \ +do { \ + change_mm_context(&prev->context, &next->context, next->pgd); \ +} while(0) + +#define deactivate_mm(tsk, mm) \ +do { \ +} while(0) + +#endif |