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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-um/mmu_context.h | |
download | linux-fsl-qoriq-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-um/mmu_context.h')
-rw-r--r-- | include/asm-um/mmu_context.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/include/asm-um/mmu_context.h b/include/asm-um/mmu_context.h new file mode 100644 index 0000000..89bff31 --- /dev/null +++ b/include/asm-um/mmu_context.h @@ -0,0 +1,76 @@ +/* + * Copyright (C) 2002 Jeff Dike (jdike@karaya.com) + * Licensed under the GPL + */ + +#ifndef __UM_MMU_CONTEXT_H +#define __UM_MMU_CONTEXT_H + +#include "linux/sched.h" +#include "choose-mode.h" + +#define get_mmu_context(task) do ; while(0) +#define activate_context(tsk) do ; while(0) + +#define deactivate_mm(tsk,mm) do { } while (0) + +static inline void activate_mm(struct mm_struct *old, struct mm_struct *new) +{ +} + +extern void switch_mm_skas(int mm_fd); + +static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, + struct task_struct *tsk) +{ + unsigned cpu = smp_processor_id(); + + if(prev != next){ + cpu_clear(cpu, prev->cpu_vm_mask); + cpu_set(cpu, next->cpu_vm_mask); + if(next != &init_mm) + CHOOSE_MODE((void) 0, + switch_mm_skas(next->context.skas.mm_fd)); + } +} + +static inline void enter_lazy_tlb(struct mm_struct *mm, + struct task_struct *tsk) +{ +} + +extern int init_new_context_skas(struct task_struct *task, + struct mm_struct *mm); + +static inline int init_new_context_tt(struct task_struct *task, + struct mm_struct *mm) +{ + return(0); +} + +static inline int init_new_context(struct task_struct *task, + struct mm_struct *mm) +{ + return(CHOOSE_MODE_PROC(init_new_context_tt, init_new_context_skas, + task, mm)); +} + +extern void destroy_context_skas(struct mm_struct *mm); + +static inline void destroy_context(struct mm_struct *mm) +{ + CHOOSE_MODE((void) 0, destroy_context_skas(mm)); +} + +#endif + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * Emacs will notice this stuff at the end of the file and automatically + * adjust the settings for this buffer only. This must remain at the end + * of the file. + * --------------------------------------------------------------------------- + * Local variables: + * c-file-style: "linux" + * End: + */ |