#include <kern/queue.h>
+/* Kernel trace events associated with timers and timer queues */
+#define DECR_TRAP_LATENCY MACHDBG_CODE(DBG_MACH_EXCP_DECI, 0)
+#define DECR_SET_DEADLINE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 1)
+#define DECR_TIMER_CALLOUT MACHDBG_CODE(DBG_MACH_EXCP_DECI, 2)
+#define DECR_PM_DEADLINE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 3)
+#define DECR_TIMER_MIGRATE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 4)
+#if defined(i386) || defined(x86_64)
+#define DECR_RDHPET MACHDBG_CODE(DBG_MACH_EXCP_DECI, 5)
+#define DECR_SET_TSC_DEADLINE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 6)
+#define DECR_SET_APIC_DEADLINE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 16)
+#endif
+#define DECR_TIMER_ENTER MACHDBG_CODE(DBG_MACH_EXCP_DECI, 7)
+#define DECR_TIMER_CANCEL MACHDBG_CODE(DBG_MACH_EXCP_DECI, 8)
+#define DECR_TIMER_QUEUE MACHDBG_CODE(DBG_MACH_EXCP_DECI, 9)
+#define DECR_TIMER_EXPIRE MACHDBG_CODE(DBG_MACH_EXCP_DECI,10)
+#define DECR_TIMER_ASYNC_DEQ MACHDBG_CODE(DBG_MACH_EXCP_DECI,11)
+#define DECR_TIMER_UPDATE MACHDBG_CODE(DBG_MACH_EXCP_DECI,12)
+#define DECR_TIMER_ESCALATE MACHDBG_CODE(DBG_MACH_EXCP_DECI,13)
+#define DECR_TIMER_OVERDUE MACHDBG_CODE(DBG_MACH_EXCP_DECI,14)
+#define DECR_TIMER_RESCAN MACHDBG_CODE(DBG_MACH_EXCP_DECI,15)
+
/*
* Invoked by kernel, implemented by platform.
*/
/* Request an expiration deadline, returns queue association */
-extern mpqueue_head_t *timer_queue_assign(
+extern mpqueue_head_t * timer_queue_assign(
uint64_t deadline);
extern uint64_t timer_call_slop(
- uint64_t deadline);
+ uint64_t deadline,
+ uint64_t armtime,
+ uint32_t urgency,
+ thread_t arming_thread,
+ boolean_t *rlimited);
+extern boolean_t timer_resort_threshold(uint64_t);
/* Cancel an associated expiration deadline and specify new deadline */
extern void timer_queue_cancel(
uint64_t deadline,
uint64_t new_deadline);
+/* Return a pointer to the local timer queue for a given cpu */
+extern mpqueue_head_t * timer_queue_cpu(
+ int cpu);
+
+/* Call a function with argument on a cpu */
+extern void timer_call_cpu(
+ int cpu,
+ void (*fn)(void *),
+ void *arg);
+
+/* Queue a function to be called with argument on a cpu */
+extern void timer_call_nosync_cpu(
+ int cpu,
+ void (*fn)(void *),
+ void *arg);
+
/*
* Invoked by platform, implemented by kernel.
*/
+/*
+ * Invoked by kernel, implemented by platform.
+ */
+
+#define NUM_LATENCY_QOS_TIERS (6)
+
+typedef struct {
+ uint32_t idle_entry_timer_processing_hdeadline_threshold_ns;
+ uint32_t interrupt_timer_coalescing_ilat_threshold_ns;
+ uint32_t timer_resort_threshold_ns;
+
+ int32_t timer_coalesce_rt_shift;
+ int32_t timer_coalesce_bg_shift;
+ int32_t timer_coalesce_kt_shift;
+ int32_t timer_coalesce_fp_shift;
+ int32_t timer_coalesce_ts_shift;
+
+ uint64_t timer_coalesce_rt_ns_max;
+ uint64_t timer_coalesce_bg_ns_max;
+ uint64_t timer_coalesce_kt_ns_max;
+ uint64_t timer_coalesce_fp_ns_max;
+ uint64_t timer_coalesce_ts_ns_max;
+
+ uint32_t latency_qos_scale[NUM_LATENCY_QOS_TIERS];
+ uint64_t latency_qos_ns_max[NUM_LATENCY_QOS_TIERS];
+ boolean_t latency_tier_rate_limited[NUM_LATENCY_QOS_TIERS];
+} timer_coalescing_priority_params_ns_t;
+
+extern timer_coalescing_priority_params_ns_t * timer_call_get_priority_params(void);
+
+
+extern uint64_t timer_call_slop(
+ uint64_t deadline,
+ uint64_t armtime,
+ uint32_t urgency,
+ thread_t arming_thread,
+ boolean_t *rlimited);
+
/* Process deadline expiration for queue, returns new deadline */
extern uint64_t timer_queue_expire(
mpqueue_head_t *queue,
uint64_t deadline);
+extern uint64_t timer_queue_expire_with_options(
+ mpqueue_head_t *,
+ uint64_t,
+ boolean_t);
+
+extern void quantum_timer_expire(
+ uint64_t deadline);
+
/* Shutdown a timer queue and reassign existing activities */
extern void timer_queue_shutdown(
mpqueue_head_t *queue);
mpqueue_head_t *from,
mpqueue_head_t *to);
+/*
+ * Invoked by platform, implemented by platfrom.
+ */
+
+extern void timer_intr(int inuser, uint64_t iaddr);
+
+#if defined(i386) || defined(x86_64)
+extern uint64_t setPop(uint64_t time);
+#else
+extern int setPop(uint64_t time);
+#endif
+
+extern void timer_resync_deadlines(void);
+
+extern void timer_set_deadline(uint64_t deadline);
+
+extern void quantum_timer_set_deadline(uint64_t deadline);
+
+/* Migrate the local timer queue of a given cpu to the master cpu */
+extern uint32_t timer_queue_migrate_cpu(int target_cpu);
+
+extern void timer_queue_trace(
+ mpqueue_head_t *queue);
+extern void timer_queue_trace_cpu(int cpu);
+
+extern uint64_t timer_sysctl_get(int oid);
+extern int timer_sysctl_set(int oid, uint64_t value);
+
#endif /* MACH_KERNEL_PRIVATE */
#endif /* _KERN_TIMER_QUEUE_H_ */
projects / apple / xnu.git / blobdiff