summaryrefslogtreecommitdiffstats
path: root/include/asm-ppc64/mmu_context.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-ppc64/mmu_context.h')
-rw-r--r--include/asm-ppc64/mmu_context.h87
1 files changed, 0 insertions, 87 deletions
diff --git a/include/asm-ppc64/mmu_context.h b/include/asm-ppc64/mmu_context.h
deleted file mode 100644
index 77a743402db..00000000000
--- a/include/asm-ppc64/mmu_context.h
+++ /dev/null
@@ -1,87 +0,0 @@
-#ifndef __PPC64_MMU_CONTEXT_H
-#define __PPC64_MMU_CONTEXT_H
-
-#include <linux/config.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <asm/mmu.h>
-#include <asm/cputable.h>
-
-/*
- * Copyright (C) 2001 PPC 64 Team, IBM Corp
- *
- * 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.
- */
-
-/*
- * Every architecture must define this function. It's the fastest
- * way of searching a 140-bit bitmap where the first 100 bits are
- * unlikely to be set. It's guaranteed that at least one of the 140
- * bits is cleared.
- */
-static inline int sched_find_first_bit(unsigned long *b)
-{
- if (unlikely(b[0]))
- return __ffs(b[0]);
- if (unlikely(b[1]))
- return __ffs(b[1]) + 64;
- return __ffs(b[2]) + 128;
-}
-
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-}
-
-#define NO_CONTEXT 0
-#define MAX_CONTEXT (0x100000-1)
-
-extern int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
-extern void destroy_context(struct mm_struct *mm);
-
-extern void switch_stab(struct task_struct *tsk, struct mm_struct *mm);
-extern void switch_slb(struct task_struct *tsk, struct mm_struct *mm);
-
-/*
- * switch_mm is the entry point called from the architecture independent
- * code in kernel/sched.c
- */
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
- struct task_struct *tsk)
-{
- if (!cpu_isset(smp_processor_id(), next->cpu_vm_mask))
- cpu_set(smp_processor_id(), next->cpu_vm_mask);
-
- /* No need to flush userspace segments if the mm doesnt change */
- if (prev == next)
- return;
-
-#ifdef CONFIG_ALTIVEC
- if (cpu_has_feature(CPU_FTR_ALTIVEC))
- asm volatile ("dssall");
-#endif /* CONFIG_ALTIVEC */
-
- if (cpu_has_feature(CPU_FTR_SLB))
- switch_slb(tsk, next);
- else
- switch_stab(tsk, next);
-}
-
-#define deactivate_mm(tsk,mm) do { } while (0)
-
-/*
- * After we have set current->mm to a new value, this activates
- * the context for the new mm so we see the new mappings.
- */
-static inline void activate_mm(struct mm_struct *prev, struct mm_struct *next)
-{
- unsigned long flags;
-
- local_irq_save(flags);
- switch_mm(prev, next, current);
- local_irq_restore(flags);
-}
-
-#endif /* __PPC64_MMU_CONTEXT_H */