diff options
author | Paul Mackerras <paulus@samba.org> | 2005-11-19 12:17:32 +0300 |
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committer | Paul Mackerras <paulus@samba.org> | 2005-11-19 12:17:32 +0300 |
commit | 047ea7846565917c4a666635fa1fa4b5c587cd55 (patch) | |
tree | 409c8f6ddd1f145fb364a8d6f813febd0c94d06b /include/asm-ppc64/mmu_context.h | |
parent | 800fc3eeb0eed3bf98d621c0da24d68cabcf6526 (diff) | |
download | linux-047ea7846565917c4a666635fa1fa4b5c587cd55.tar.xz |
powerpc: Trivially merge several headers from asm-ppc64 to asm-powerpc
For these, I have just done the lame-o merge where the file ends up
looking like:
#ifndef CONFIG_PPC64
#include <asm-ppc/foo.h>
#else
... contents from asm-ppc64/foo.h
#endif
so nothing has changed, really, except that we reduce include/asm-ppc64
a bit more.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-ppc64/mmu_context.h')
-rw-r--r-- | include/asm-ppc64/mmu_context.h | 85 |
1 files changed, 0 insertions, 85 deletions
diff --git a/include/asm-ppc64/mmu_context.h b/include/asm-ppc64/mmu_context.h deleted file mode 100644 index 4f512e9fa6b8..000000000000 --- a/include/asm-ppc64/mmu_context.h +++ /dev/null @@ -1,85 +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. - */ - -/* - * Getting into a kernel thread, there is no valid user segment, mark - * paca->pgdir NULL so that SLB miss on user addresses will fault - */ -static inline void enter_lazy_tlb(struct mm_struct *mm, - struct task_struct *tsk) -{ -#ifdef CONFIG_PPC_64K_PAGES - get_paca()->pgdir = NULL; -#endif /* CONFIG_PPC_64K_PAGES */ -} - -#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 */ -#ifdef CONFIG_PPC_64K_PAGES - if (prev == next && get_paca()->pgdir == next->pgd) - return; -#else - if (prev == next) - return; -#endif /* CONFIG_PPC_64K_PAGES */ - -#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 */ |