diff options
Diffstat (limited to 'include/linux/interrupt.h')
-rw-r--r-- | include/linux/interrupt.h | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 75f3f00ac1e5..c2331138ca1b 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h | |||
@@ -39,7 +39,8 @@ | |||
39 | * These flags used only by the kernel as part of the | 39 | * These flags used only by the kernel as part of the |
40 | * irq handling routines. | 40 | * irq handling routines. |
41 | * | 41 | * |
42 | * IRQF_DISABLED - keep irqs disabled when calling the action handler | 42 | * IRQF_DISABLED - keep irqs disabled when calling the action handler. |
43 | * DEPRECATED. This flag is a NOOP and scheduled to be removed | ||
43 | * IRQF_SAMPLE_RANDOM - irq is used to feed the random generator | 44 | * IRQF_SAMPLE_RANDOM - irq is used to feed the random generator |
44 | * IRQF_SHARED - allow sharing the irq among several devices | 45 | * IRQF_SHARED - allow sharing the irq among several devices |
45 | * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur | 46 | * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur |
@@ -77,6 +78,18 @@ enum { | |||
77 | IRQTF_AFFINITY, | 78 | IRQTF_AFFINITY, |
78 | }; | 79 | }; |
79 | 80 | ||
81 | /* | ||
82 | * These values can be returned by request_any_context_irq() and | ||
83 | * describe the context the interrupt will be run in. | ||
84 | * | ||
85 | * IRQC_IS_HARDIRQ - interrupt runs in hardirq context | ||
86 | * IRQC_IS_NESTED - interrupt runs in a nested threaded context | ||
87 | */ | ||
88 | enum { | ||
89 | IRQC_IS_HARDIRQ = 0, | ||
90 | IRQC_IS_NESTED, | ||
91 | }; | ||
92 | |||
80 | typedef irqreturn_t (*irq_handler_t)(int, void *); | 93 | typedef irqreturn_t (*irq_handler_t)(int, void *); |
81 | 94 | ||
82 | /** | 95 | /** |
@@ -120,6 +133,10 @@ request_irq(unsigned int irq, irq_handler_t handler, unsigned long flags, | |||
120 | return request_threaded_irq(irq, handler, NULL, flags, name, dev); | 133 | return request_threaded_irq(irq, handler, NULL, flags, name, dev); |
121 | } | 134 | } |
122 | 135 | ||
136 | extern int __must_check | ||
137 | request_any_context_irq(unsigned int irq, irq_handler_t handler, | ||
138 | unsigned long flags, const char *name, void *dev_id); | ||
139 | |||
123 | extern void exit_irq_thread(void); | 140 | extern void exit_irq_thread(void); |
124 | #else | 141 | #else |
125 | 142 | ||
@@ -141,6 +158,13 @@ request_threaded_irq(unsigned int irq, irq_handler_t handler, | |||
141 | return request_irq(irq, handler, flags, name, dev); | 158 | return request_irq(irq, handler, flags, name, dev); |
142 | } | 159 | } |
143 | 160 | ||
161 | static inline int __must_check | ||
162 | request_any_context_irq(unsigned int irq, irq_handler_t handler, | ||
163 | unsigned long flags, const char *name, void *dev_id) | ||
164 | { | ||
165 | return request_irq(irq, handler, flags, name, dev_id); | ||
166 | } | ||
167 | |||
144 | static inline void exit_irq_thread(void) { } | 168 | static inline void exit_irq_thread(void) { } |
145 | #endif | 169 | #endif |
146 | 170 | ||
@@ -209,6 +233,7 @@ extern int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask); | |||
209 | extern int irq_can_set_affinity(unsigned int irq); | 233 | extern int irq_can_set_affinity(unsigned int irq); |
210 | extern int irq_select_affinity(unsigned int irq); | 234 | extern int irq_select_affinity(unsigned int irq); |
211 | 235 | ||
236 | extern int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m); | ||
212 | #else /* CONFIG_SMP */ | 237 | #else /* CONFIG_SMP */ |
213 | 238 | ||
214 | static inline int irq_set_affinity(unsigned int irq, const struct cpumask *m) | 239 | static inline int irq_set_affinity(unsigned int irq, const struct cpumask *m) |
@@ -223,6 +248,11 @@ static inline int irq_can_set_affinity(unsigned int irq) | |||
223 | 248 | ||
224 | static inline int irq_select_affinity(unsigned int irq) { return 0; } | 249 | static inline int irq_select_affinity(unsigned int irq) { return 0; } |
225 | 250 | ||
251 | static inline int irq_set_affinity_hint(unsigned int irq, | ||
252 | const struct cpumask *m) | ||
253 | { | ||
254 | return -EINVAL; | ||
255 | } | ||
226 | #endif /* CONFIG_SMP && CONFIG_GENERIC_HARDIRQS */ | 256 | #endif /* CONFIG_SMP && CONFIG_GENERIC_HARDIRQS */ |
227 | 257 | ||
228 | #ifdef CONFIG_GENERIC_HARDIRQS | 258 | #ifdef CONFIG_GENERIC_HARDIRQS |