diff options
Diffstat (limited to 'include/asm-x86/irqflags_32.h')
-rw-r--r-- | include/asm-x86/irqflags_32.h | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/include/asm-x86/irqflags_32.h b/include/asm-x86/irqflags_32.h deleted file mode 100644 index 98b21b9bdce8..000000000000 --- a/include/asm-x86/irqflags_32.h +++ /dev/null | |||
@@ -1,195 +0,0 @@ | |||
1 | /* | ||
2 | * IRQ flags handling | ||
3 | * | ||
4 | * This file gets included from lowlevel asm headers too, to provide | ||
5 | * wrapped versions of the local_irq_*() APIs, based on the | ||
6 | * raw_local_irq_*() functions from the lowlevel headers. | ||
7 | */ | ||
8 | #ifndef _ASM_IRQFLAGS_H | ||
9 | #define _ASM_IRQFLAGS_H | ||
10 | #include <asm/processor-flags.h> | ||
11 | |||
12 | #ifndef __ASSEMBLY__ | ||
13 | static inline unsigned long native_save_fl(void) | ||
14 | { | ||
15 | unsigned long f; | ||
16 | asm volatile("pushfl ; popl %0":"=g" (f): /* no input */); | ||
17 | return f; | ||
18 | } | ||
19 | |||
20 | static inline void native_restore_fl(unsigned long f) | ||
21 | { | ||
22 | asm volatile("pushl %0 ; popfl": /* no output */ | ||
23 | :"g" (f) | ||
24 | :"memory", "cc"); | ||
25 | } | ||
26 | |||
27 | static inline void native_irq_disable(void) | ||
28 | { | ||
29 | asm volatile("cli": : :"memory"); | ||
30 | } | ||
31 | |||
32 | static inline void native_irq_enable(void) | ||
33 | { | ||
34 | asm volatile("sti": : :"memory"); | ||
35 | } | ||
36 | |||
37 | static inline void native_safe_halt(void) | ||
38 | { | ||
39 | asm volatile("sti; hlt": : :"memory"); | ||
40 | } | ||
41 | |||
42 | static inline void native_halt(void) | ||
43 | { | ||
44 | asm volatile("hlt": : :"memory"); | ||
45 | } | ||
46 | #endif /* __ASSEMBLY__ */ | ||
47 | |||
48 | #ifdef CONFIG_PARAVIRT | ||
49 | #include <asm/paravirt.h> | ||
50 | #else | ||
51 | #ifndef __ASSEMBLY__ | ||
52 | |||
53 | static inline unsigned long __raw_local_save_flags(void) | ||
54 | { | ||
55 | return native_save_fl(); | ||
56 | } | ||
57 | |||
58 | static inline void raw_local_irq_restore(unsigned long flags) | ||
59 | { | ||
60 | native_restore_fl(flags); | ||
61 | } | ||
62 | |||
63 | static inline void raw_local_irq_disable(void) | ||
64 | { | ||
65 | native_irq_disable(); | ||
66 | } | ||
67 | |||
68 | static inline void raw_local_irq_enable(void) | ||
69 | { | ||
70 | native_irq_enable(); | ||
71 | } | ||
72 | |||
73 | /* | ||
74 | * Used in the idle loop; sti takes one instruction cycle | ||
75 | * to complete: | ||
76 | */ | ||
77 | static inline void raw_safe_halt(void) | ||
78 | { | ||
79 | native_safe_halt(); | ||
80 | } | ||
81 | |||
82 | /* | ||
83 | * Used when interrupts are already enabled or to | ||
84 | * shutdown the processor: | ||
85 | */ | ||
86 | static inline void halt(void) | ||
87 | { | ||
88 | native_halt(); | ||
89 | } | ||
90 | |||
91 | /* | ||
92 | * For spinlocks, etc: | ||
93 | */ | ||
94 | static inline unsigned long __raw_local_irq_save(void) | ||
95 | { | ||
96 | unsigned long flags = __raw_local_save_flags(); | ||
97 | |||
98 | raw_local_irq_disable(); | ||
99 | |||
100 | return flags; | ||
101 | } | ||
102 | |||
103 | #else | ||
104 | #define DISABLE_INTERRUPTS(clobbers) cli | ||
105 | #define ENABLE_INTERRUPTS(clobbers) sti | ||
106 | #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit | ||
107 | #define INTERRUPT_RETURN iret | ||
108 | #define GET_CR0_INTO_EAX movl %cr0, %eax | ||
109 | #endif /* __ASSEMBLY__ */ | ||
110 | #endif /* CONFIG_PARAVIRT */ | ||
111 | |||
112 | #ifndef __ASSEMBLY__ | ||
113 | #define raw_local_save_flags(flags) \ | ||
114 | do { (flags) = __raw_local_save_flags(); } while (0) | ||
115 | |||
116 | #define raw_local_irq_save(flags) \ | ||
117 | do { (flags) = __raw_local_irq_save(); } while (0) | ||
118 | |||
119 | static inline int raw_irqs_disabled_flags(unsigned long flags) | ||
120 | { | ||
121 | return !(flags & X86_EFLAGS_IF); | ||
122 | } | ||
123 | |||
124 | static inline int raw_irqs_disabled(void) | ||
125 | { | ||
126 | unsigned long flags = __raw_local_save_flags(); | ||
127 | |||
128 | return raw_irqs_disabled_flags(flags); | ||
129 | } | ||
130 | |||
131 | /* | ||
132 | * makes the traced hardirq state match with the machine state | ||
133 | * | ||
134 | * should be a rarely used function, only in places where its | ||
135 | * otherwise impossible to know the irq state, like in traps. | ||
136 | */ | ||
137 | static inline void trace_hardirqs_fixup_flags(unsigned long flags) | ||
138 | { | ||
139 | if (raw_irqs_disabled_flags(flags)) | ||
140 | trace_hardirqs_off(); | ||
141 | else | ||
142 | trace_hardirqs_on(); | ||
143 | } | ||
144 | |||
145 | static inline void trace_hardirqs_fixup(void) | ||
146 | { | ||
147 | unsigned long flags = __raw_local_save_flags(); | ||
148 | |||
149 | trace_hardirqs_fixup_flags(flags); | ||
150 | } | ||
151 | #endif /* __ASSEMBLY__ */ | ||
152 | |||
153 | /* | ||
154 | * Do the CPU's IRQ-state tracing from assembly code. We call a | ||
155 | * C function, so save all the C-clobbered registers: | ||
156 | */ | ||
157 | #ifdef CONFIG_TRACE_IRQFLAGS | ||
158 | |||
159 | # define TRACE_IRQS_ON \ | ||
160 | pushl %eax; \ | ||
161 | pushl %ecx; \ | ||
162 | pushl %edx; \ | ||
163 | call trace_hardirqs_on; \ | ||
164 | popl %edx; \ | ||
165 | popl %ecx; \ | ||
166 | popl %eax; | ||
167 | |||
168 | # define TRACE_IRQS_OFF \ | ||
169 | pushl %eax; \ | ||
170 | pushl %ecx; \ | ||
171 | pushl %edx; \ | ||
172 | call trace_hardirqs_off; \ | ||
173 | popl %edx; \ | ||
174 | popl %ecx; \ | ||
175 | popl %eax; | ||
176 | |||
177 | #else | ||
178 | # define TRACE_IRQS_ON | ||
179 | # define TRACE_IRQS_OFF | ||
180 | #endif | ||
181 | |||
182 | #ifdef CONFIG_DEBUG_LOCK_ALLOC | ||
183 | # define LOCKDEP_SYS_EXIT \ | ||
184 | pushl %eax; \ | ||
185 | pushl %ecx; \ | ||
186 | pushl %edx; \ | ||
187 | call lockdep_sys_exit; \ | ||
188 | popl %edx; \ | ||
189 | popl %ecx; \ | ||
190 | popl %eax; | ||
191 | #else | ||
192 | # define LOCKDEP_SYS_EXIT | ||
193 | #endif | ||
194 | |||
195 | #endif | ||