aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-um/mmu_context.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-um/mmu_context.h
Linux-2.6.12-rc2v2.6.12-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.h76
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 000000000000..89bff310b7a9
--- /dev/null
+++ b/include/asm-um/mmu_context.h
@@ -0,0 +1,76 @@
1/*
2 * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
3 * Licensed under the GPL
4 */
5
6#ifndef __UM_MMU_CONTEXT_H
7#define __UM_MMU_CONTEXT_H
8
9#include "linux/sched.h"
10#include "choose-mode.h"
11
12#define get_mmu_context(task) do ; while(0)
13#define activate_context(tsk) do ; while(0)
14
15#define deactivate_mm(tsk,mm) do { } while (0)
16
17static inline void activate_mm(struct mm_struct *old, struct mm_struct *new)
18{
19}
20
21extern void switch_mm_skas(int mm_fd);
22
23static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
24 struct task_struct *tsk)
25{
26 unsigned cpu = smp_processor_id();
27
28 if(prev != next){
29 cpu_clear(cpu, prev->cpu_vm_mask);
30 cpu_set(cpu, next->cpu_vm_mask);
31 if(next != &init_mm)
32 CHOOSE_MODE((void) 0,
33 switch_mm_skas(next->context.skas.mm_fd));
34 }
35}
36
37static inline void enter_lazy_tlb(struct mm_struct *mm,
38 struct task_struct *tsk)
39{
40}
41
42extern int init_new_context_skas(struct task_struct *task,
43 struct mm_struct *mm);
44
45static inline int init_new_context_tt(struct task_struct *task,
46 struct mm_struct *mm)
47{
48 return(0);
49}
50
51static inline int init_new_context(struct task_struct *task,
52 struct mm_struct *mm)
53{
54 return(CHOOSE_MODE_PROC(init_new_context_tt, init_new_context_skas,
55 task, mm));
56}
57
58extern void destroy_context_skas(struct mm_struct *mm);
59
60static inline void destroy_context(struct mm_struct *mm)
61{
62 CHOOSE_MODE((void) 0, destroy_context_skas(mm));
63}
64
65#endif
66
67/*
68 * Overrides for Emacs so that we follow Linus's tabbing style.
69 * Emacs will notice this stuff at the end of the file and automatically
70 * adjust the settings for this buffer only. This must remain at the end
71 * of the file.
72 * ---------------------------------------------------------------------------
73 * Local variables:
74 * c-file-style: "linux"
75 * End:
76 */