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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 05:20:03 -0400
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 05:20:03 -0400
commit96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch)
treed947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-i386/mmu_context.h
parent27bd0c955648646abf2a353a8371d28c37bcd982 (diff)
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-i386/mmu_context.h')
-rw-r--r--include/asm-i386/mmu_context.h86
1 files changed, 0 insertions, 86 deletions
diff --git a/include/asm-i386/mmu_context.h b/include/asm-i386/mmu_context.h
deleted file mode 100644
index 7eb0b0b1fb3c..000000000000
--- a/include/asm-i386/mmu_context.h
+++ /dev/null
@@ -1,86 +0,0 @@
1#ifndef __I386_SCHED_H
2#define __I386_SCHED_H
3
4#include <asm/desc.h>
5#include <asm/atomic.h>
6#include <asm/pgalloc.h>
7#include <asm/tlbflush.h>
8#include <asm/paravirt.h>
9#ifndef CONFIG_PARAVIRT
10#include <asm-generic/mm_hooks.h>
11
12static inline void paravirt_activate_mm(struct mm_struct *prev,
13 struct mm_struct *next)
14{
15}
16#endif /* !CONFIG_PARAVIRT */
17
18
19/*
20 * Used for LDT copy/destruction.
21 */
22int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
23void destroy_context(struct mm_struct *mm);
24
25
26static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
27{
28#ifdef CONFIG_SMP
29 unsigned cpu = smp_processor_id();
30 if (per_cpu(cpu_tlbstate, cpu).state == TLBSTATE_OK)
31 per_cpu(cpu_tlbstate, cpu).state = TLBSTATE_LAZY;
32#endif
33}
34
35void leave_mm(unsigned long cpu);
36
37static inline void switch_mm(struct mm_struct *prev,
38 struct mm_struct *next,
39 struct task_struct *tsk)
40{
41 int cpu = smp_processor_id();
42
43 if (likely(prev != next)) {
44 /* stop flush ipis for the previous mm */
45 cpu_clear(cpu, prev->cpu_vm_mask);
46#ifdef CONFIG_SMP
47 per_cpu(cpu_tlbstate, cpu).state = TLBSTATE_OK;
48 per_cpu(cpu_tlbstate, cpu).active_mm = next;
49#endif
50 cpu_set(cpu, next->cpu_vm_mask);
51
52 /* Re-load page tables */
53 load_cr3(next->pgd);
54
55 /*
56 * load the LDT, if the LDT is different:
57 */
58 if (unlikely(prev->context.ldt != next->context.ldt))
59 load_LDT_nolock(&next->context);
60 }
61#ifdef CONFIG_SMP
62 else {
63 per_cpu(cpu_tlbstate, cpu).state = TLBSTATE_OK;
64 BUG_ON(per_cpu(cpu_tlbstate, cpu).active_mm != next);
65
66 if (!cpu_test_and_set(cpu, next->cpu_vm_mask)) {
67 /* We were in lazy tlb mode and leave_mm disabled
68 * tlb flush IPI delivery. We must reload %cr3.
69 */
70 load_cr3(next->pgd);
71 load_LDT_nolock(&next->context);
72 }
73 }
74#endif
75}
76
77#define deactivate_mm(tsk, mm) \
78 asm("movl %0,%%gs": :"r" (0));
79
80#define activate_mm(prev, next) \
81 do { \
82 paravirt_activate_mm(prev, next); \
83 switch_mm((prev),(next),NULL); \
84 } while(0);
85
86#endif