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authorThomas Gleixner <tglx@linutronix.de>2011-05-19 01:33:41 +0400
committerThomas Gleixner <tglx@linutronix.de>2011-05-19 16:24:15 +0400
commit847b2f42be203f3cff7f243fdd3ee50c1e06c882 (patch)
tree18447792ac25ac001aaf2e22fda7eec3183a162d /include/linux/clockchips.h
parent724ed53e8ac2c5278af8955673049714c1073464 (diff)
downloadlinux-847b2f42be203f3cff7f243fdd3ee50c1e06c882.tar.xz
clockevents: Restructure clock_event_device members
Group the hot path members of struct clock_event_device together so we have a better cache line footprint. Make it cacheline aligned. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Reviewed-by: Ingo Molnar <mingo@elte.hu> Link: http://lkml.kernel.org/r/%3C20110518210136.223607682%40linutronix.de%3E
Diffstat (limited to 'include/linux/clockchips.h')
-rw-r--r--include/linux/clockchips.h45
1 files changed, 23 insertions, 22 deletions
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index fc53492b6ad7..9466eebc8e19 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -56,46 +56,47 @@ enum clock_event_nofitiers {
/**
* struct clock_event_device - clock event device descriptor
- * @name: ptr to clock event name
- * @features: features
+ * @event_handler: Assigned by the framework to be called by the low
+ * level handler of the event source
+ * @set_next_event: set next event function
+ * @next_event: local storage for the next event in oneshot mode
* @max_delta_ns: maximum delta value in ns
* @min_delta_ns: minimum delta value in ns
* @mult: nanosecond to cycles multiplier
* @shift: nanoseconds to cycles divisor (power of two)
+ * @mode: operating mode assigned by the management code
+ * @features: features
+ * @retries: number of forced programming retries
+ * @set_mode: set mode function
+ * @broadcast: function to broadcast events
+ * @name: ptr to clock event name
* @rating: variable to rate clock event devices
* @irq: IRQ number (only for non CPU local devices)
* @cpumask: cpumask to indicate for which CPUs this device works
- * @set_next_event: set next event function
- * @set_mode: set mode function
- * @event_handler: Assigned by the framework to be called by the low
- * level handler of the event source
- * @broadcast: function to broadcast events
* @list: list head for the management code
- * @mode: operating mode assigned by the management code
- * @next_event: local storage for the next event in oneshot mode
- * @retries: number of forced programming retries
*/
struct clock_event_device {
- const char *name;
- unsigned int features;
+ void (*event_handler)(struct clock_event_device *);
+ int (*set_next_event)(unsigned long evt,
+ struct clock_event_device *);
+ ktime_t next_event;
u64 max_delta_ns;
u64 min_delta_ns;
u32 mult;
u32 shift;
+ enum clock_event_mode mode;
+ unsigned int features;
+ unsigned long retries;
+
+ void (*broadcast)(const struct cpumask *mask);
+ void (*set_mode)(enum clock_event_mode mode,
+ struct clock_event_device *);
+ const char *name;
int rating;
int irq;
const struct cpumask *cpumask;
- int (*set_next_event)(unsigned long evt,
- struct clock_event_device *);
- void (*set_mode)(enum clock_event_mode mode,
- struct clock_event_device *);
- void (*event_handler)(struct clock_event_device *);
- void (*broadcast)(const struct cpumask *mask);
struct list_head list;
- enum clock_event_mode mode;
- ktime_t next_event;
- unsigned long retries;
-};
+} ____cacheline_aligned;
/*
* Calculate a multiplication factor for scaled math, which is used to convert