diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2008-01-30 07:30:35 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 07:30:35 -0500 |
commit | d291cf83639a0e0b67ff783b6ed29c0a747d4901 (patch) | |
tree | 89c3709d1d773c8f3bd9a47cf4716e7c9d54df89 | |
parent | 0b9c99b6f21c2e9e00938e9c57942ed71bfe4d21 (diff) |
x86: merge tlbflush.h variants
The delta is now minimal. Merge them
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r-- | include/asm-x86/tlbflush.h | 157 | ||||
-rw-r--r-- | include/asm-x86/tlbflush_32.h | 148 | ||||
-rw-r--r-- | include/asm-x86/tlbflush_64.h | 140 |
3 files changed, 155 insertions, 290 deletions
diff --git a/include/asm-x86/tlbflush.h b/include/asm-x86/tlbflush.h index 9af4cc83a1a..3998709ed63 100644 --- a/include/asm-x86/tlbflush.h +++ b/include/asm-x86/tlbflush.h | |||
@@ -1,5 +1,158 @@ | |||
1 | #ifndef _ASM_X86_TLBFLUSH_H | ||
2 | #define _ASM_X86_TLBFLUSH_H | ||
3 | |||
4 | #include <linux/mm.h> | ||
5 | #include <linux/sched.h> | ||
6 | |||
7 | #include <asm/processor.h> | ||
8 | #include <asm/system.h> | ||
9 | |||
10 | #ifdef CONFIG_PARAVIRT | ||
11 | #include <asm/paravirt.h> | ||
12 | #else | ||
13 | #define __flush_tlb() __native_flush_tlb() | ||
14 | #define __flush_tlb_global() __native_flush_tlb_global() | ||
15 | #define __flush_tlb_single(addr) __native_flush_tlb_single(addr) | ||
16 | #endif | ||
17 | |||
18 | static inline void __native_flush_tlb(void) | ||
19 | { | ||
20 | write_cr3(read_cr3()); | ||
21 | } | ||
22 | |||
23 | static inline void __native_flush_tlb_global(void) | ||
24 | { | ||
25 | unsigned long cr4 = read_cr4(); | ||
26 | |||
27 | /* clear PGE */ | ||
28 | write_cr4(cr4 & ~X86_CR4_PGE); | ||
29 | /* write old PGE again and flush TLBs */ | ||
30 | write_cr4(cr4); | ||
31 | } | ||
32 | |||
33 | static inline void __native_flush_tlb_single(unsigned long addr) | ||
34 | { | ||
35 | __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory"); | ||
36 | } | ||
37 | |||
38 | static inline void __flush_tlb_all(void) | ||
39 | { | ||
40 | if (cpu_has_pge) | ||
41 | __flush_tlb_global(); | ||
42 | else | ||
43 | __flush_tlb(); | ||
44 | } | ||
45 | |||
46 | static inline void __flush_tlb_one(unsigned long addr) | ||
47 | { | ||
48 | if (cpu_has_invlpg) | ||
49 | __flush_tlb_single(addr); | ||
50 | else | ||
51 | __flush_tlb(); | ||
52 | } | ||
53 | |||
1 | #ifdef CONFIG_X86_32 | 54 | #ifdef CONFIG_X86_32 |
2 | # include "tlbflush_32.h" | 55 | # define TLB_FLUSH_ALL 0xffffffff |
3 | #else | 56 | #else |
4 | # include "tlbflush_64.h" | 57 | # define TLB_FLUSH_ALL -1ULL |
58 | #endif | ||
59 | |||
60 | /* | ||
61 | * TLB flushing: | ||
62 | * | ||
63 | * - flush_tlb() flushes the current mm struct TLBs | ||
64 | * - flush_tlb_all() flushes all processes TLBs | ||
65 | * - flush_tlb_mm(mm) flushes the specified mm context TLB's | ||
66 | * - flush_tlb_page(vma, vmaddr) flushes one page | ||
67 | * - flush_tlb_range(vma, start, end) flushes a range of pages | ||
68 | * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages | ||
69 | * - flush_tlb_others(cpumask, mm, va) flushes TLBs on other cpus | ||
70 | * | ||
71 | * ..but the i386 has somewhat limited tlb flushing capabilities, | ||
72 | * and page-granular flushes are available only on i486 and up. | ||
73 | * | ||
74 | * x86-64 can only flush individual pages or full VMs. For a range flush | ||
75 | * we always do the full VM. Might be worth trying if for a small | ||
76 | * range a few INVLPGs in a row are a win. | ||
77 | */ | ||
78 | |||
79 | #ifndef CONFIG_SMP | ||
80 | |||
81 | #define flush_tlb() __flush_tlb() | ||
82 | #define flush_tlb_all() __flush_tlb_all() | ||
83 | #define local_flush_tlb() __flush_tlb() | ||
84 | |||
85 | static inline void flush_tlb_mm(struct mm_struct *mm) | ||
86 | { | ||
87 | if (mm == current->active_mm) | ||
88 | __flush_tlb(); | ||
89 | } | ||
90 | |||
91 | static inline void flush_tlb_page(struct vm_area_struct *vma, | ||
92 | unsigned long addr) | ||
93 | { | ||
94 | if (vma->vm_mm == current->active_mm) | ||
95 | __flush_tlb_one(addr); | ||
96 | } | ||
97 | |||
98 | static inline void flush_tlb_range(struct vm_area_struct *vma, | ||
99 | unsigned long start, unsigned long end) | ||
100 | { | ||
101 | if (vma->vm_mm == current->active_mm) | ||
102 | __flush_tlb(); | ||
103 | } | ||
104 | |||
105 | static inline void native_flush_tlb_others(const cpumask_t *cpumask, | ||
106 | struct mm_struct *mm, | ||
107 | unsigned long va) | ||
108 | { | ||
109 | } | ||
110 | |||
111 | #else /* SMP */ | ||
112 | |||
113 | #include <asm/smp.h> | ||
114 | |||
115 | #define local_flush_tlb() __flush_tlb() | ||
116 | |||
117 | extern void flush_tlb_all(void); | ||
118 | extern void flush_tlb_current_task(void); | ||
119 | extern void flush_tlb_mm(struct mm_struct *); | ||
120 | extern void flush_tlb_page(struct vm_area_struct *, unsigned long); | ||
121 | |||
122 | #define flush_tlb() flush_tlb_current_task() | ||
123 | |||
124 | static inline void flush_tlb_range(struct vm_area_struct *vma, | ||
125 | unsigned long start, unsigned long end) | ||
126 | { | ||
127 | flush_tlb_mm(vma->vm_mm); | ||
128 | } | ||
129 | |||
130 | void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm, | ||
131 | unsigned long va); | ||
132 | |||
133 | #define TLBSTATE_OK 1 | ||
134 | #define TLBSTATE_LAZY 2 | ||
135 | |||
136 | #ifdef CONFIG_X86_32 | ||
137 | struct tlb_state | ||
138 | { | ||
139 | struct mm_struct *active_mm; | ||
140 | int state; | ||
141 | char __cacheline_padding[L1_CACHE_BYTES-8]; | ||
142 | }; | ||
143 | DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate); | ||
144 | #endif | ||
145 | |||
146 | #endif /* SMP */ | ||
147 | |||
148 | #ifndef CONFIG_PARAVIRT | ||
149 | #define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va) | ||
5 | #endif | 150 | #endif |
151 | |||
152 | static inline void flush_tlb_kernel_range(unsigned long start, | ||
153 | unsigned long end) | ||
154 | { | ||
155 | flush_tlb_all(); | ||
156 | } | ||
157 | |||
158 | #endif /* _ASM_X86_TLBFLUSH_H */ | ||
diff --git a/include/asm-x86/tlbflush_32.h b/include/asm-x86/tlbflush_32.h deleted file mode 100644 index 9e07cc8f2d9..00000000000 --- a/include/asm-x86/tlbflush_32.h +++ /dev/null | |||
@@ -1,148 +0,0 @@ | |||
1 | #ifndef _X86_TLBFLUSH_H | ||
2 | #define _X86_TLBFLUSH_H | ||
3 | |||
4 | #include <linux/mm.h> | ||
5 | #include <linux/sched.h> | ||
6 | |||
7 | #include <asm/processor.h> | ||
8 | #include <asm/system.h> | ||
9 | |||
10 | #ifdef CONFIG_PARAVIRT | ||
11 | #include <asm/paravirt.h> | ||
12 | #else | ||
13 | #define __flush_tlb() __native_flush_tlb() | ||
14 | #define __flush_tlb_global() __native_flush_tlb_global() | ||
15 | #define __flush_tlb_single(addr) __native_flush_tlb_single(addr) | ||
16 | #endif | ||
17 | |||
18 | static inline void __native_flush_tlb(void) | ||
19 | { | ||
20 | write_cr3(read_cr3()); | ||
21 | } | ||
22 | |||
23 | static inline void __native_flush_tlb_global(void) | ||
24 | { | ||
25 | unsigned long cr4 = read_cr4(); | ||
26 | |||
27 | /* clear PGE */ | ||
28 | write_cr4(cr4 & ~X86_CR4_PGE); | ||
29 | /* write old PGE again and flush TLBs */ | ||
30 | write_cr4(cr4); | ||
31 | } | ||
32 | |||
33 | static inline void __native_flush_tlb_single(unsigned long addr) | ||
34 | { | ||
35 | __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory"); | ||
36 | } | ||
37 | |||
38 | static inline void __flush_tlb_all(void) | ||
39 | { | ||
40 | if (cpu_has_pge) | ||
41 | __flush_tlb_global(); | ||
42 | else | ||
43 | __flush_tlb(); | ||
44 | } | ||
45 | |||
46 | static inline void __flush_tlb_one(unsigned long addr) | ||
47 | { | ||
48 | if (cpu_has_invlpg) | ||
49 | __flush_tlb_single(addr); | ||
50 | else | ||
51 | __flush_tlb(); | ||
52 | } | ||
53 | |||
54 | /* | ||
55 | * TLB flushing: | ||
56 | * | ||
57 | * - flush_tlb() flushes the current mm struct TLBs | ||
58 | * - flush_tlb_all() flushes all processes TLBs | ||
59 | * - flush_tlb_mm(mm) flushes the specified mm context TLB's | ||
60 | * - flush_tlb_page(vma, vmaddr) flushes one page | ||
61 | * - flush_tlb_range(vma, start, end) flushes a range of pages | ||
62 | * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages | ||
63 | * - flush_tlb_others(cpumask, mm, va) flushes a TLBs on other cpus | ||
64 | * | ||
65 | * ..but the i386 has somewhat limited tlb flushing capabilities, | ||
66 | * and page-granular flushes are available only on i486 and up. | ||
67 | */ | ||
68 | |||
69 | #define TLB_FLUSH_ALL 0xffffffff | ||
70 | |||
71 | #ifndef CONFIG_SMP | ||
72 | |||
73 | #define flush_tlb() __flush_tlb() | ||
74 | #define flush_tlb_all() __flush_tlb_all() | ||
75 | #define local_flush_tlb() __flush_tlb() | ||
76 | |||
77 | static inline void flush_tlb_mm(struct mm_struct *mm) | ||
78 | { | ||
79 | if (mm == current->active_mm) | ||
80 | __flush_tlb(); | ||
81 | } | ||
82 | |||
83 | static inline void flush_tlb_page(struct vm_area_struct *vma, | ||
84 | unsigned long addr) | ||
85 | { | ||
86 | if (vma->vm_mm == current->active_mm) | ||
87 | __flush_tlb_one(addr); | ||
88 | } | ||
89 | |||
90 | static inline void flush_tlb_range(struct vm_area_struct *vma, | ||
91 | unsigned long start, unsigned long end) | ||
92 | { | ||
93 | if (vma->vm_mm == current->active_mm) | ||
94 | __flush_tlb(); | ||
95 | } | ||
96 | |||
97 | static inline void native_flush_tlb_others(const cpumask_t *cpumask, | ||
98 | struct mm_struct *mm, | ||
99 | unsigned long va) | ||
100 | { | ||
101 | } | ||
102 | |||
103 | #else /* SMP */ | ||
104 | |||
105 | #include <asm/smp.h> | ||
106 | |||
107 | #define local_flush_tlb() __flush_tlb() | ||
108 | |||
109 | extern void flush_tlb_all(void); | ||
110 | extern void flush_tlb_current_task(void); | ||
111 | extern void flush_tlb_mm(struct mm_struct *); | ||
112 | extern void flush_tlb_page(struct vm_area_struct *, unsigned long); | ||
113 | |||
114 | #define flush_tlb() flush_tlb_current_task() | ||
115 | |||
116 | static inline void flush_tlb_range(struct vm_area_struct *vma, | ||
117 | unsigned long start, unsigned long end) | ||
118 | { | ||
119 | flush_tlb_mm(vma->vm_mm); | ||
120 | } | ||
121 | |||
122 | void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm, | ||
123 | unsigned long va); | ||
124 | |||
125 | #define TLBSTATE_OK 1 | ||
126 | #define TLBSTATE_LAZY 2 | ||
127 | |||
128 | struct tlb_state | ||
129 | { | ||
130 | struct mm_struct *active_mm; | ||
131 | int state; | ||
132 | char __cacheline_padding[L1_CACHE_BYTES-8]; | ||
133 | }; | ||
134 | DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate); | ||
135 | |||
136 | #endif /* SMP */ | ||
137 | |||
138 | #ifndef CONFIG_PARAVIRT | ||
139 | #define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va) | ||
140 | #endif | ||
141 | |||
142 | static inline void flush_tlb_kernel_range(unsigned long start, | ||
143 | unsigned long end) | ||
144 | { | ||
145 | flush_tlb_all(); | ||
146 | } | ||
147 | |||
148 | #endif /* _X86_TLBFLUSH_H */ | ||
diff --git a/include/asm-x86/tlbflush_64.h b/include/asm-x86/tlbflush_64.h deleted file mode 100644 index 0bed440ba9f..00000000000 --- a/include/asm-x86/tlbflush_64.h +++ /dev/null | |||
@@ -1,140 +0,0 @@ | |||
1 | #ifndef _X86_TLBFLUSH_H | ||
2 | #define _X86_TLBFLUSH_H | ||
3 | |||
4 | #include <linux/mm.h> | ||
5 | #include <linux/sched.h> | ||
6 | |||
7 | #include <asm/processor.h> | ||
8 | #include <asm/system.h> | ||
9 | |||
10 | #ifdef CONFIG_PARAVIRT | ||
11 | #include <asm/paravirt.h> | ||
12 | #else | ||
13 | #define __flush_tlb() __native_flush_tlb() | ||
14 | #define __flush_tlb_global() __native_flush_tlb_global() | ||
15 | #define __flush_tlb_single(addr) __native_flush_tlb_single(addr) | ||
16 | #endif | ||
17 | |||
18 | static inline void __native_flush_tlb(void) | ||
19 | { | ||
20 | write_cr3(read_cr3()); | ||
21 | } | ||
22 | |||
23 | static inline void __native_flush_tlb_global(void) | ||
24 | { | ||
25 | unsigned long cr4 = read_cr4(); | ||
26 | |||
27 | /* clear PGE */ | ||
28 | write_cr4(cr4 & ~X86_CR4_PGE); | ||
29 | /* write old PGE again and flush TLBs */ | ||
30 | write_cr4(cr4); | ||
31 | } | ||
32 | |||
33 | static inline void __native_flush_tlb_single(unsigned long addr) | ||
34 | { | ||
35 | __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory"); | ||
36 | } | ||
37 | |||
38 | static inline void __flush_tlb_all(void) | ||
39 | { | ||
40 | if (cpu_has_pge) | ||
41 | __flush_tlb_global(); | ||
42 | else | ||
43 | __flush_tlb(); | ||
44 | } | ||
45 | |||
46 | static inline void __flush_tlb_one(unsigned long addr) | ||
47 | { | ||
48 | if (cpu_has_invlpg) | ||
49 | __flush_tlb_single(addr); | ||
50 | else | ||
51 | __flush_tlb(); | ||
52 | } | ||
53 | |||
54 | /* | ||
55 | * TLB flushing: | ||
56 | * | ||
57 | * - flush_tlb() flushes the current mm struct TLBs | ||
58 | * - flush_tlb_all() flushes all processes TLBs | ||
59 | * - flush_tlb_mm(mm) flushes the specified mm context TLB's | ||
60 | * - flush_tlb_page(vma, vmaddr) flushes one page | ||
61 | * - flush_tlb_range(vma, start, end) flushes a range of pages | ||
62 | * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages | ||
63 | * | ||
64 | * x86-64 can only flush individual pages or full VMs. For a range flush | ||
65 | * we always do the full VM. Might be worth trying if for a small | ||
66 | * range a few INVLPGs in a row are a win. | ||
67 | */ | ||
68 | |||
69 | #define TLB_FLUSH_ALL -1ULL | ||
70 | |||
71 | #ifndef CONFIG_SMP | ||
72 | |||
73 | #define flush_tlb() __flush_tlb() | ||
74 | #define flush_tlb_all() __flush_tlb_all() | ||
75 | #define local_flush_tlb() __flush_tlb() | ||
76 | |||
77 | static inline void flush_tlb_mm(struct mm_struct *mm) | ||
78 | { | ||
79 | if (mm == current->active_mm) | ||
80 | __flush_tlb(); | ||
81 | } | ||
82 | |||
83 | static inline void flush_tlb_page(struct vm_area_struct *vma, | ||
84 | unsigned long addr) | ||
85 | { | ||
86 | if (vma->vm_mm == current->active_mm) | ||
87 | __flush_tlb_one(addr); | ||
88 | } | ||
89 | |||
90 | static inline void flush_tlb_range(struct vm_area_struct *vma, | ||
91 | unsigned long start, unsigned long end) | ||
92 | { | ||
93 | if (vma->vm_mm == current->active_mm) | ||
94 | __flush_tlb(); | ||
95 | } | ||
96 | |||
97 | static inline void native_flush_tlb_others(const cpumask_t *cpumask, | ||
98 | struct mm_struct *mm, | ||
99 | unsigned long va) | ||
100 | { | ||
101 | } | ||
102 | |||
103 | #else /* SMP */ | ||
104 | |||
105 | #include <asm/smp.h> | ||
106 | |||
107 | #define local_flush_tlb() __flush_tlb() | ||
108 | |||
109 | extern void flush_tlb_all(void); | ||
110 | extern void flush_tlb_current_task(void); | ||
111 | extern void flush_tlb_mm(struct mm_struct *); | ||
112 | extern void flush_tlb_page(struct vm_area_struct *, unsigned long); | ||
113 | |||
114 | #define flush_tlb() flush_tlb_current_task() | ||
115 | |||
116 | static inline void flush_tlb_range(struct vm_area_struct *vma, | ||
117 | unsigned long start, unsigned long end) | ||
118 | { | ||
119 | flush_tlb_mm(vma->vm_mm); | ||
120 | } | ||
121 | |||
122 | void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm, | ||
123 | unsigned long va); | ||
124 | |||
125 | #define TLBSTATE_OK 1 | ||
126 | #define TLBSTATE_LAZY 2 | ||
127 | |||
128 | #endif /* SMP */ | ||
129 | |||
130 | #ifndef CONFIG_PARAVIRT | ||
131 | #define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va) | ||
132 | #endif | ||
133 | |||
134 | static inline void flush_tlb_kernel_range(unsigned long start, | ||
135 | unsigned long end) | ||
136 | { | ||
137 | flush_tlb_all(); | ||
138 | } | ||
139 | |||
140 | #endif /* _X86_TLBFLUSH_H */ | ||