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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-16 11:07:59 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2008-07-16 11:07:59 +1000
commit84c3d4aaec3338201b449034beac41635866bddf (patch)
tree3412951682fb2dd4feb8a5532f8efbaf8b345933 /include/linux/smp.h
parent43d2548bb2ef7e6d753f91468a746784041e522d (diff)
parentfafa3a3f16723997f039a0193997464d66dafd8f (diff)
downloadlwn-84c3d4aaec3338201b449034beac41635866bddf.tar.gz
lwn-84c3d4aaec3338201b449034beac41635866bddf.zip
Merge commit 'origin/master'
Manual merge of: arch/powerpc/Kconfig arch/powerpc/kernel/stacktrace.c arch/powerpc/mm/slice.c arch/ppc/kernel/smp.c
Diffstat (limited to 'include/linux/smp.h')
-rw-r--r--include/linux/smp.h46
1 files changed, 38 insertions, 8 deletions
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 55232ccf9cfd..48262f86c969 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -7,9 +7,18 @@
*/
#include <linux/errno.h>
+#include <linux/list.h>
+#include <linux/cpumask.h>
extern void cpu_idle(void);
+struct call_single_data {
+ struct list_head list;
+ void (*func) (void *info);
+ void *info;
+ unsigned int flags;
+};
+
#ifdef CONFIG_SMP
#include <linux/preempt.h>
@@ -52,15 +61,34 @@ extern void smp_cpus_done(unsigned int max_cpus);
/*
* Call a function on all other processors
*/
-int smp_call_function(void(*func)(void *info), void *info, int retry, int wait);
-
+int smp_call_function(void(*func)(void *info), void *info, int wait);
+int smp_call_function_mask(cpumask_t mask, void(*func)(void *info), void *info,
+ int wait);
int smp_call_function_single(int cpuid, void (*func) (void *info), void *info,
- int retry, int wait);
+ int wait);
+void __smp_call_function_single(int cpuid, struct call_single_data *data);
+
+/*
+ * Generic and arch helpers
+ */
+#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
+void generic_smp_call_function_single_interrupt(void);
+void generic_smp_call_function_interrupt(void);
+void init_call_single_data(void);
+void ipi_call_lock(void);
+void ipi_call_unlock(void);
+void ipi_call_lock_irq(void);
+void ipi_call_unlock_irq(void);
+#else
+static inline void init_call_single_data(void)
+{
+}
+#endif
/*
* Call a function on all processors
*/
-int on_each_cpu(void (*func) (void *info), void *info, int retry, int wait);
+int on_each_cpu(void (*func) (void *info), void *info, int wait);
#define MSG_ALL_BUT_SELF 0x8000 /* Assume <32768 CPU's */
#define MSG_ALL 0x8001
@@ -90,9 +118,9 @@ static inline int up_smp_call_function(void (*func)(void *), void *info)
{
return 0;
}
-#define smp_call_function(func, info, retry, wait) \
+#define smp_call_function(func, info, wait) \
(up_smp_call_function(func, info))
-#define on_each_cpu(func,info,retry,wait) \
+#define on_each_cpu(func,info,wait) \
({ \
local_irq_disable(); \
func(info); \
@@ -102,7 +130,7 @@ static inline int up_smp_call_function(void (*func)(void *), void *info)
static inline void smp_send_reschedule(int cpu) { }
#define num_booting_cpus() 1
#define smp_prepare_boot_cpu() do {} while (0)
-#define smp_call_function_single(cpuid, func, info, retry, wait) \
+#define smp_call_function_single(cpuid, func, info, wait) \
({ \
WARN_ON(cpuid != 0); \
local_irq_disable(); \
@@ -112,7 +140,9 @@ static inline void smp_send_reschedule(int cpu) { }
})
#define smp_call_function_mask(mask, func, info, wait) \
(up_smp_call_function(func, info))
-
+static inline void init_call_single_data(void)
+{
+}
#endif /* !SMP */
/*