/*
- * Copyright (c) 2000-2009 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2010, 2015 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <mach/mach_param.h>
#include <mach/task_info.h>
#include <mach/exception_types.h>
+#include <mach/vm_statistics.h>
#include <machine/task.h>
#include <kern/cpu_data.h>
#include <kern/queue.h>
#include <kern/exception.h>
-#include <kern/lock.h>
-#include <kern/thread.h>
+#include <kern/locks.h>
#include <security/_label.h>
-#include <ipc/ipc_labelh.h>
+#include <ipc/ipc_port.h>
+#endif /* MACH_KERNEL_PRIVATE */
+
+#ifdef XNU_KERNEL_PRIVATE
+
+#include <kern/kern_cdata.h>
+#include <mach/sfi_class.h>
+#include <kern/queue.h>
+
+/* defns for task->rsu_controldata */
+#define TASK_POLICY_CPU_RESOURCE_USAGE 0
+#define TASK_POLICY_WIREDMEM_RESOURCE_USAGE 1
+#define TASK_POLICY_VIRTUALMEM_RESOURCE_USAGE 2
+#define TASK_POLICY_DISK_RESOURCE_USAGE 3
+#define TASK_POLICY_NETWORK_RESOURCE_USAGE 4
+#define TASK_POLICY_POWER_RESOURCE_USAGE 5
+
+#define TASK_POLICY_RESOURCE_USAGE_COUNT 6
+
+#define TASK_POLICY_CPUMON_DISABLE 0xFF
+#define TASK_POLICY_CPUMON_DEFAULTS 0xFE
+
+/* Resource usage/low resource attributes */
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_NONE 0x00
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_THROTTLE 0x01
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_SUSPEND 0x02
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_TERMINATE 0x03
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_KQ 0x04
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_NOTIFY_EXC 0x05
+#define TASK_POLICY_RESOURCE_ATTRIBUTE_DEFAULT TASK_POLICY_RESOURCE_ATTRIBUTE_NONE
+
+#endif /* XNU_KERNEL_PRIVATE */
+
+#ifdef MACH_KERNEL_PRIVATE
+
+
+#include <kern/thread.h>
+#include <mach/coalition.h>
+
+#ifdef CONFIG_ATM
+#include <atm/atm_internal.h>
+#endif
+
+struct _cpu_time_qos_stats {
+ uint64_t cpu_time_qos_default;
+ uint64_t cpu_time_qos_maintenance;
+ uint64_t cpu_time_qos_background;
+ uint64_t cpu_time_qos_utility;
+ uint64_t cpu_time_qos_legacy;
+ uint64_t cpu_time_qos_user_initiated;
+ uint64_t cpu_time_qos_user_interactive;
+};
+
+#ifdef CONFIG_BANK
+#include <bank/bank_internal.h>
+#endif
struct task {
/* Synchronization/destruction information */
queue_chain_t tasks; /* global list of tasks */
void *user_data; /* Arbitrary data settable via IPC */
+#if defined(CONFIG_SCHED_MULTIQ)
+ sched_group_t sched_group;
+#endif /* defined(CONFIG_SCHED_MULTIQ) */
+
/* Threads in this task */
queue_head_t threads;
/* User-visible scheduling information */
integer_t user_stop_count; /* outstanding stops */
-
- task_role_t role;
+ integer_t legacy_stop_count; /* outstanding legacy stops */
integer_t priority; /* base priority for threads */
integer_t max_priority; /* maximum priority for threads */
+ integer_t importance; /* priority offset (BSD 'nice' value) */
+
/* Task security and audit tokens */
security_token_t sec_token;
audit_token_t audit_token;
/* Statistics */
uint64_t total_user_time; /* terminated threads only */
uint64_t total_system_time;
-
+
/* Virtual timers */
uint32_t vtimers;
struct ipc_port *itk_bootstrap; /* a send right */
struct ipc_port *itk_seatbelt; /* a send right */
struct ipc_port *itk_gssd; /* yet another send right */
+ struct ipc_port *itk_debug_control; /* send right for debugmode communications */
struct ipc_port *itk_task_access; /* and another send right */
+ struct ipc_port *itk_resume; /* a receive right to resume this task */
struct ipc_port *itk_registered[TASK_PORT_REGISTER_MAX];
/* all send rights */
/* Synchronizer ownership information */
queue_head_t semaphore_list; /* list of owned semaphores */
- queue_head_t lock_set_list; /* list of owned lock sets */
int semaphores_owned; /* number of semaphores owned */
- int lock_sets_owned; /* number of lock sets owned */
- /* Ledgers */
- struct ipc_port *wired_ledger_port;
- struct ipc_port *paged_ledger_port;
+ ledger_t ledger;
+
unsigned int priv_flags; /* privilege resource flags */
#define VM_BACKING_STORE_PRIV 0x1
uint32_t c_switch; /* total context switches */
uint32_t p_switch; /* total processor switches */
uint32_t ps_switch; /* total pset switches */
+
+ zinfo_usage_t tkm_zinfo; /* per-task, per-zone usage statistics */
+
#ifdef MACH_BSD
void *bsd_info;
#endif
+ kcdata_descriptor_t corpse_info;
struct vm_shared_region *shared_region;
- uint32_t taskFeatures[2]; /* Special feature for this task */
-#define tf64BitAddr 0x80000000 /* Task has 64-bit addressing */
-#define tf64BitData 0x40000000 /* Task has 64-bit data registers */
+ volatile uint32_t t_flags; /* general-purpose task flags protected by task_lock (TL) */
+#define TF_64B_ADDR 0x00000001 /* task has 64-bit addressing */
+#define TF_64B_DATA 0x00000002 /* task has 64-bit data registers */
+#define TF_CPUMON_WARNING 0x00000004 /* task has at least one thread in CPU usage warning zone */
+#define TF_WAKEMON_WARNING 0x00000008 /* task is in wakeups monitor warning zone */
+#define TF_TELEMETRY (TF_CPUMON_WARNING | TF_WAKEMON_WARNING) /* task is a telemetry participant */
+#define TF_GPU_DENIED 0x00000010 /* task is not allowed to access the GPU */
+#define TF_CORPSE 0x00000020 /* task is a corpse */
+#define TF_PENDING_CORPSE 0x00000040 /* task corpse has not been reported yet */
+
#define task_has_64BitAddr(task) \
- (((task)->taskFeatures[0] & tf64BitAddr) != 0)
+ (((task)->t_flags & TF_64B_ADDR) != 0)
#define task_set_64BitAddr(task) \
- ((task)->taskFeatures[0] |= tf64BitAddr)
+ ((task)->t_flags |= TF_64B_ADDR)
#define task_clear_64BitAddr(task) \
- ((task)->taskFeatures[0] &= ~tf64BitAddr)
+ ((task)->t_flags &= ~TF_64B_ADDR)
+#define task_has_64BitData(task) \
+ (((task)->t_flags & TF_64B_DATA) != 0)
+
+#define task_is_a_corpse(task) \
+ (((task)->t_flags & TF_CORPSE) != 0)
+
+#define task_set_corpse(task) \
+ ((task)->t_flags |= TF_CORPSE)
+
+#define task_corpse_pending_report(task) \
+ (((task)->t_flags & TF_PENDING_CORPSE) != 0)
+
+#define task_set_corpse_pending_report(task) \
+ ((task)->t_flags |= TF_PENDING_CORPSE)
+
+#define task_clear_corpse_pending_report(task) \
+ ((task)->t_flags &= ~TF_PENDING_CORPSE)
mach_vm_address_t all_image_info_addr; /* dyld __all_image_info */
mach_vm_size_t all_image_info_size; /* section location and size */
-#if CONFIG_MACF_MACH
- ipc_labelh_t label;
-#endif
-#if CONFIG_COUNTERS
-#define TASK_PMC_FLAG 0x1 /* Bit in "t_chud" signifying PMC interest */
+#if KPERF
+#define TASK_PMC_FLAG 0x1 /* Bit in "t_chud" signifying PMC interest */
+#define TASK_KPC_FORCED_ALL_CTRS 0x2 /* Bit in "t_chud" signifying KPC forced all counters */
+
uint32_t t_chud; /* CHUD flags, used for Shark */
#endif
-};
+ boolean_t pidsuspended; /* pid_suspend called; no threads can execute */
+ boolean_t frozen; /* frozen; private resident pages committed to swap */
+ boolean_t changing_freeze_state; /* in the process of freezing or thawing */
+ uint16_t policy_ru_cpu :4,
+ policy_ru_cpu_ext :4,
+ applied_ru_cpu :4,
+ applied_ru_cpu_ext :4;
+ uint8_t rusage_cpu_flags;
+ uint8_t rusage_cpu_percentage; /* Task-wide CPU limit percentage */
+ uint64_t rusage_cpu_interval; /* Task-wide CPU limit interval */
+ uint8_t rusage_cpu_perthr_percentage; /* Per-thread CPU limit percentage */
+ uint64_t rusage_cpu_perthr_interval; /* Per-thread CPU limit interval */
+ uint64_t rusage_cpu_deadline;
+ thread_call_t rusage_cpu_callt;
+
+#if CONFIG_ATM
+ struct atm_task_descriptor *atm_context; /* pointer to per task atm descriptor */
+#endif
+#if CONFIG_BANK
+ struct bank_task *bank_context; /* pointer to per task bank structure */
+#endif
+
+#if IMPORTANCE_INHERITANCE
+ struct ipc_importance_task *task_imp_base; /* Base of IPC importance chain */
+#endif /* IMPORTANCE_INHERITANCE */
-#define task_lock(task) lck_mtx_lock(&(task)->lock)
-#define task_lock_try(task) lck_mtx_try_lock(&(task)->lock)
-#define task_unlock(task) lck_mtx_unlock(&(task)->lock)
+ vm_extmod_statistics_data_t extmod_statistics;
-#if CONFIG_MACF_MACH
-#define maclabel label->lh_label
+#if MACH_ASSERT
+ int8_t suspends_outstanding; /* suspends this task performed in excess of resumes */
+#endif
-#define tasklabel_lock(task) lh_lock((task)->label)
-#define tasklabel_unlock(task) lh_unlock((task)->label)
+ struct task_requested_policy requested_policy;
+ struct task_effective_policy effective_policy;
+ struct task_pended_policy pended_policy;
+
+ /*
+ * Can be merged with imp_donor bits, once the IMPORTANCE_INHERITANCE macro goes away.
+ */
+ uint32_t low_mem_notified_warn :1, /* warning low memory notification is sent to the task */
+ low_mem_notified_critical :1, /* critical low memory notification is sent to the task */
+ purged_memory_warn :1, /* purgeable memory of the task is purged for warning level pressure */
+ purged_memory_critical :1, /* purgeable memory of the task is purged for critical level pressure */
+ low_mem_privileged_listener :1, /* if set, task would like to know about pressure changes before other tasks on the system */
+ mem_notify_reserved :27; /* reserved for future use */
+
+ io_stat_info_t task_io_stats;
+ uint64_t task_immediate_writes __attribute__((aligned(8)));
+ uint64_t task_deferred_writes __attribute__((aligned(8)));
+ uint64_t task_invalidated_writes __attribute__((aligned(8)));
+ uint64_t task_metadata_writes __attribute__((aligned(8)));
+
+ /*
+ * The cpu_time_qos_stats fields are protected by the task lock
+ */
+ struct _cpu_time_qos_stats cpu_time_qos_stats;
+
+ /* Statistics accumulated for terminated threads from this task */
+ uint32_t task_timer_wakeups_bin_1;
+ uint32_t task_timer_wakeups_bin_2;
+ uint64_t task_gpu_ns;
+
+ /* # of purgeable volatile VM objects owned by this task: */
+ int task_volatile_objects;
+ /* # of purgeable but not volatile VM objects owned by this task: */
+ int task_nonvolatile_objects;
+ boolean_t task_purgeable_disowning;
+ boolean_t task_purgeable_disowned;
+
+ /*
+ * A task's coalition set is "adopted" in task_create_internal
+ * and unset in task_deallocate_internal, so each array member
+ * can be referenced without the task lock.
+ * Note: these fields are protected by coalition->lock,
+ * not the task lock.
+ */
+ coalition_t coalition[COALITION_NUM_TYPES];
+ queue_chain_t task_coalition[COALITION_NUM_TYPES];
+ uint64_t dispatchqueue_offset;
+
+#if HYPERVISOR
+ void *hv_task_target; /* hypervisor virtual machine object associated with this task */
+#endif /* HYPERVISOR */
+
+ queue_head_t io_user_clients;
+};
-extern void tasklabel_lock2(task_t a, task_t b);
-extern void tasklabel_unlock2(task_t a, task_t b);
-#endif /* MAC_MACH */
+#define task_lock(task) lck_mtx_lock(&(task)->lock)
+#define task_lock_assert_owned(task) lck_mtx_assert(&(task)->lock, LCK_MTX_ASSERT_OWNED)
+#define task_lock_try(task) lck_mtx_try_lock(&(task)->lock)
+#define task_unlock(task) lck_mtx_unlock(&(task)->lock)
#define itk_lock_init(task) lck_mtx_init(&(task)->itk_lock_data, &ipc_lck_grp, &ipc_lck_attr)
#define itk_lock_destroy(task) lck_mtx_destroy(&(task)->itk_lock_data, &ipc_lck_grp)
#define itk_lock(task) lck_mtx_lock(&(task)->itk_lock_data)
#define itk_unlock(task) lck_mtx_unlock(&(task)->itk_lock_data)
+#define TASK_REFERENCE_LEAK_DEBUG 0
+
+#if TASK_REFERENCE_LEAK_DEBUG
+extern void task_reference_internal(task_t task);
+extern uint32_t task_deallocate_internal(task_t task);
+#else
#define task_reference_internal(task) \
(void)hw_atomic_add(&(task)->ref_count, 1)
#define task_deallocate_internal(task) \
hw_atomic_sub(&(task)->ref_count, 1)
+#endif
#define task_reference(task) \
MACRO_BEGIN \
task_t *child);
/* Initialize task module */
-extern void task_init(void) __attribute__((section("__TEXT, initcode")));
+extern void task_init(void);
+
+/* coalition_init() calls this to initialize ledgers before task_init() */
+extern void init_task_ledgers(void);
#define current_task_fast() (current_thread()->task)
#define current_task() current_task_fast()
extern lck_attr_t task_lck_attr;
extern lck_grp_t task_lck_grp;
+#define QOS_OVERRIDE_MODE_OVERHANG_PEAK 0
+#define QOS_OVERRIDE_MODE_IGNORE_OVERRIDE 1
+#define QOS_OVERRIDE_MODE_FINE_GRAINED_OVERRIDE 2
+#define QOS_OVERRIDE_MODE_FINE_GRAINED_OVERRIDE_BUT_IGNORE_DISPATCH 3
+#define QOS_OVERRIDE_MODE_FINE_GRAINED_OVERRIDE_BUT_SINGLE_MUTEX_OVERRIDE 4
+
+extern uint32_t qos_override_mode;
+
#else /* MACH_KERNEL_PRIVATE */
__BEGIN_DECLS
extern kern_return_t task_hold(
task_t task);
+/* Wait for task to stop running, either just to get off CPU or to cease being runnable */
+extern kern_return_t task_wait(
+ task_t task,
+ boolean_t until_not_runnable);
+
/* Release hold on all threads in a task */
extern kern_return_t task_release(
task_t task);
+/* Suspend/resume a task where the kernel owns the suspend count */
+extern kern_return_t task_suspend_internal( task_t task);
+extern kern_return_t task_resume_internal( task_t task);
+
+/* Suspends a task by placing a hold on its threads */
+extern kern_return_t task_pidsuspend(
+ task_t task);
+extern kern_return_t task_pidsuspend_locked(
+ task_t task);
+
+/* Resumes a previously paused task */
+extern kern_return_t task_pidresume(
+ task_t task);
+
+extern kern_return_t task_send_trace_memory(
+ task_t task,
+ uint32_t pid,
+ uint64_t uniqueid);
+
+extern void tasks_system_suspend(boolean_t suspend);
+
+#if CONFIG_FREEZE
+
+/* Freeze a task's resident pages */
+extern kern_return_t task_freeze(
+ task_t task,
+ uint32_t *purgeable_count,
+ uint32_t *wired_count,
+ uint32_t *clean_count,
+ uint32_t *dirty_count,
+ uint32_t dirty_budget,
+ boolean_t *shared,
+ boolean_t walk_only);
+
+/* Thaw a currently frozen task */
+extern kern_return_t task_thaw(
+ task_t task);
+
+#endif /* CONFIG_FREEZE */
+
/* Halt all other threads in the current task */
extern kern_return_t task_start_halt(
task_t task);
extern kern_return_t task_create_internal(
task_t parent_task,
+ coalition_t *parent_coalitions,
boolean_t inherit_memory,
boolean_t is_64bit,
task_t *child_task); /* OUT */
task_t task,
integer_t importance);
+extern void task_power_info_locked(
+ task_t task,
+ task_power_info_t info,
+ gpu_energy_data_t gpu_energy);
+
+extern uint64_t task_gpu_utilisation(
+ task_t task);
+
extern void task_vtimer_set(
task_t task,
integer_t which);
task_t task);
extern int get_task_numactivethreads(task_t task);
+extern kern_return_t task_collect_crash_info(task_t task);
/* JMM - should just be temporary (implementation in bsd_kern still) */
extern void set_bsdtask_info(task_t,void *);
extern vm_map_t get_task_map_reference(task_t);
-extern vm_map_t swap_task_map(task_t, thread_t, vm_map_t);
+extern vm_map_t swap_task_map(task_t, thread_t, vm_map_t, boolean_t);
extern pmap_t get_task_pmap(task_t);
extern uint64_t get_task_resident_size(task_t);
+extern uint64_t get_task_compressed(task_t);
+extern uint64_t get_task_resident_max(task_t);
+extern uint64_t get_task_phys_footprint(task_t);
+extern uint64_t get_task_phys_footprint_max(task_t);
+extern uint64_t get_task_purgeable_size(task_t);
+extern uint64_t get_task_cpu_time(task_t);
+extern uint64_t get_task_dispatchqueue_offset(task_t);
+
+extern kern_return_t task_convert_phys_footprint_limit(int, int *);
+extern kern_return_t task_set_phys_footprint_limit_internal(task_t, int, int *, boolean_t);
+extern kern_return_t task_get_phys_footprint_limit(task_t task, int *limit_mb);
extern boolean_t is_kerneltask(task_t task);
thread_state_t state,
mach_msg_type_number_t state_count);
+extern void machine_task_terminate(task_t task);
+
+struct _task_ledger_indices {
+ int cpu_time;
+ int tkm_private;
+ int tkm_shared;
+ int phys_mem;
+ int wired_mem;
+ int internal;
+ int iokit_mapped;
+ int alternate_accounting;
+ int alternate_accounting_compressed;
+ int phys_footprint;
+ int internal_compressed;
+ int purgeable_volatile;
+ int purgeable_nonvolatile;
+ int purgeable_volatile_compressed;
+ int purgeable_nonvolatile_compressed;
+ int platform_idle_wakeups;
+ int interrupt_wakeups;
+#if CONFIG_SCHED_SFI
+ int sfi_wait_times[MAX_SFI_CLASS_ID];
+#endif /* CONFIG_SCHED_SFI */
+#ifdef CONFIG_BANK
+ int cpu_time_billed_to_me;
+ int cpu_time_billed_to_others;
+#endif
+};
+extern struct _task_ledger_indices task_ledgers;
+
+/* Begin task_policy */
+
+/* value */
+#define TASK_POLICY_DISABLE 0x0
+#define TASK_POLICY_ENABLE 0x1
+
+/* category */
+#define TASK_POLICY_INTERNAL 0x0
+#define TASK_POLICY_EXTERNAL 0x1
+#define TASK_POLICY_ATTRIBUTE 0x2
+
+/* for tracing */
+#define TASK_POLICY_TASK 0x4
+#define TASK_POLICY_THREAD 0x8
+
+/* flavors (also DBG_IMPORTANCE subclasses 0x20 - 0x3F) */
+
+/* internal or external, thread or task */
+#define TASK_POLICY_DARWIN_BG 0x21
+#define TASK_POLICY_IOPOL 0x22
+#define TASK_POLICY_IO 0x23
+#define TASK_POLICY_PASSIVE_IO 0x24
+
+/* internal, task only */
+#define TASK_POLICY_DARWIN_BG_IOPOL 0x27
+
+/* task-only attributes */
+#define TASK_POLICY_TAL 0x28
+#define TASK_POLICY_BOOST 0x29
+#define TASK_POLICY_ROLE 0x2A
+#define TASK_POLICY_SUPPRESSED_CPU 0x2B
+#define TASK_POLICY_TERMINATED 0x2C
+#define TASK_POLICY_NEW_SOCKETS_BG 0x2D
+#define TASK_POLICY_LOWPRI_CPU 0x2E
+#define TASK_POLICY_LATENCY_QOS 0x2F
+#define TASK_POLICY_THROUGH_QOS 0x30
+#define TASK_POLICY_WATCHERS_BG 0x31
+
+#define TASK_POLICY_SFI_MANAGED 0x34
+#define TASK_POLICY_ALL_SOCKETS_BG 0x37
+
+#define TASK_POLICY_BASE_LATENCY_AND_THROUGHPUT_QOS 0x39 /* latency as value1, throughput as value2 */
+#define TASK_POLICY_OVERRIDE_LATENCY_AND_THROUGHPUT_QOS 0x3A /* latency as value1, throughput as value2 */
+
+/* thread-only attributes */
+#define TASK_POLICY_PIDBIND_BG 0x32
+#define TASK_POLICY_WORKQ_BG 0x33
+#define TASK_POLICY_QOS 0x35
+#define TASK_POLICY_QOS_OVERRIDE 0x36
+#define TASK_POLICY_QOS_AND_RELPRIO 0x38 /* QoS as value1, relative priority as value2 */
+
+#define TASK_POLICY_MAX 0x3F
+
+/* The main entrance to task policy is this function */
+extern void proc_set_task_policy(task_t task, thread_t thread, int category, int flavor, int value);
+extern int proc_get_task_policy(task_t task, thread_t thread, int category, int flavor);
+
+/* For attributes that have two scalars as input/output */
+extern void proc_set_task_policy2(task_t task, thread_t thread, int category, int flavor, int value1, int value2);
+extern void proc_get_task_policy2(task_t task, thread_t thread, int category, int flavor, int *value1, int *value2);
+
+/* For use by kernel threads and others who don't hold a reference on the target thread */
+extern void proc_set_task_policy_thread(task_t task, uint64_t tid, int category, int flavor, int value);
+
+extern void proc_set_task_spawnpolicy(task_t task, int apptype, int qos_clamp, int role,
+ ipc_port_t * portwatch_ports, int portwatch_count);
+
+extern void task_set_main_thread_qos(task_t task, thread_t main_thread);
+
+extern int proc_darwin_role_to_task_role(int darwin_role, int* task_role);
+extern int proc_task_role_to_darwin_role(int task_role);
+
+
+/* IO Throttle tiers */
+#define THROTTLE_LEVEL_NONE -1
+#define THROTTLE_LEVEL_TIER0 0 /* IOPOL_NORMAL, IOPOL_DEFAULT, IOPOL_PASSIVE */
+
+#define THROTTLE_LEVEL_THROTTLED 1
+#define THROTTLE_LEVEL_TIER1 1 /* IOPOL_STANDARD */
+#define THROTTLE_LEVEL_TIER2 2 /* IOPOL_UTILITY */
+#define THROTTLE_LEVEL_TIER3 3 /* IOPOL_THROTTLE */
+
+#define THROTTLE_LEVEL_START 0
+#define THROTTLE_LEVEL_END 3
+
+#define THROTTLE_LEVEL_COMPRESSOR_TIER0 THROTTLE_LEVEL_TIER0
+#define THROTTLE_LEVEL_COMPRESSOR_TIER1 THROTTLE_LEVEL_TIER1
+#define THROTTLE_LEVEL_COMPRESSOR_TIER2 THROTTLE_LEVEL_TIER2
+
+#define THROTTLE_LEVEL_PAGEOUT_THROTTLED THROTTLE_LEVEL_TIER2
+#define THROTTLE_LEVEL_PAGEOUT_UNTHROTTLED THROTTLE_LEVEL_TIER1
+
+#if CONFIG_IOSCHED
+#define IOSCHED_METADATA_TIER THROTTLE_LEVEL_TIER1
+#endif /* CONFIG_IOSCHED */
+
+extern int proc_apply_workq_bgthreadpolicy(thread_t thread);
+extern int proc_restore_workq_bgthreadpolicy(thread_t thread);
+
+extern int proc_get_darwinbgstate(task_t task, uint32_t *flagsp);
+extern boolean_t proc_task_is_tal(task_t task);
+extern int task_get_apptype(task_t);
+extern integer_t task_grab_latency_qos(task_t task);
+extern void task_policy_create(task_t task, int parent_boosted);
+extern void thread_policy_create(thread_t thread);
+
+/*
+ * for IPC importance hooks into task policy
+ */
+typedef struct task_pend_token {
+ uint32_t tpt_update_sockets :1,
+ tpt_update_timers :1,
+ tpt_update_watchers :1,
+ tpt_update_live_donor :1,
+ tpt_update_coal_sfi :1;
+} *task_pend_token_t;
+
+extern void task_policy_update_complete_unlocked(task_t task, thread_t thread, task_pend_token_t pend_token);
+extern void task_update_boost_locked(task_t task, boolean_t boost_active, task_pend_token_t pend_token);
+extern void task_set_boost_locked(task_t task, boolean_t boost_active);
+
+/*
+ * Get effective policy
+ * Only for use by relevant subsystem, should never be passed into a setter!
+ */
+
+extern int proc_get_effective_task_policy(task_t task, int flavor);
+extern int proc_get_effective_thread_policy(thread_t thread, int flavor);
+
+/* temporary compatibility */
+int proc_setthread_saved_importance(thread_t thread, int importance);
+
+int proc_get_task_ruse_cpu(task_t task, uint32_t *policyp, uint8_t *percentagep, uint64_t *intervalp, uint64_t *deadlinep);
+int proc_set_task_ruse_cpu(task_t task, uint32_t policy, uint8_t percentage, uint64_t interval, uint64_t deadline, int cpumon_entitled);
+int proc_clear_task_ruse_cpu(task_t task, int cpumon_entitled);
+thread_t task_findtid(task_t, uint64_t);
+void set_thread_iotier_override(thread_t, int policy);
+
+boolean_t proc_thread_qos_add_override(task_t task, thread_t thread, uint64_t tid, int override_qos, boolean_t first_override_for_resource, user_addr_t resource, int resource_type);
+boolean_t proc_thread_qos_remove_override(task_t task, thread_t thread, uint64_t tid, user_addr_t resource, int resource_type);
+boolean_t proc_thread_qos_reset_override(task_t task, thread_t thread, uint64_t tid, user_addr_t resource, int resource_type);
+void proc_thread_qos_deallocate(thread_t thread);
+
+#define TASK_RUSECPU_FLAGS_PROC_LIMIT 0x01
+#define TASK_RUSECPU_FLAGS_PERTHR_LIMIT 0x02
+#define TASK_RUSECPU_FLAGS_DEADLINE 0x04
+#define TASK_RUSECPU_FLAGS_FATAL_CPUMON 0x08 /* CPU usage monitor violations are fatal */
+#define TASK_RUSECPU_FLAGS_FATAL_WAKEUPSMON 0x10 /* wakeups monitor violations are fatal */
+#define TASK_RUSECPU_FLAGS_PHYS_FOOTPRINT_EXCEPTION 0x20 /* exceeding physical footprint generates EXC_RESOURCE */
+
+/* BSD call back functions */
+extern int proc_apply_resource_actions(void * p, int type, int action);
+extern int proc_restore_resource_actions(void * p, int type, int action);
+extern int task_restore_resource_actions(task_t task, int type);
+
+extern int task_clear_cpuusage(task_t task, int cpumon_entitled);
+
+extern kern_return_t task_wakeups_monitor_ctl(task_t task, uint32_t *rate_hz, int32_t *flags);
+extern kern_return_t task_cpu_usage_monitor_ctl(task_t task, uint32_t *flags);
+
+
+extern void task_importance_mark_donor(task_t task, boolean_t donating);
+extern void task_importance_mark_live_donor(task_t task, boolean_t donating);
+extern void task_importance_mark_receiver(task_t task, boolean_t receiving);
+extern void task_importance_mark_denap_receiver(task_t task, boolean_t denap);
+extern void task_importance_reset(task_t task);
+extern void task_atm_reset(task_t task);
+extern void task_bank_reset(task_t task);
+extern void task_bank_init(task_t task);
+
+#if IMPORTANCE_INHERITANCE
+
+extern boolean_t task_is_importance_donor(task_t task);
+extern boolean_t task_is_marked_importance_donor(task_t task);
+extern boolean_t task_is_marked_live_importance_donor(task_t task);
+
+extern boolean_t task_is_importance_receiver(task_t task);
+extern boolean_t task_is_marked_importance_receiver(task_t task);
+
+extern boolean_t task_is_importance_denap_receiver(task_t task);
+extern boolean_t task_is_marked_importance_denap_receiver(task_t task);
+
+extern boolean_t task_is_importance_receiver_type(task_t task);
+
+extern int task_importance_hold_watchport_assertion(task_t target_task, uint32_t count);
+extern int task_importance_hold_internal_assertion(task_t target_task, uint32_t count);
+extern int task_importance_drop_internal_assertion(task_t target_task, uint32_t count);
+
+extern int task_importance_hold_file_lock_assertion(task_t target_task, uint32_t count);
+extern int task_importance_drop_file_lock_assertion(task_t target_task, uint32_t count);
+
+extern int task_importance_hold_legacy_external_assertion(task_t target_task, uint32_t count);
+extern int task_importance_drop_legacy_external_assertion(task_t target_task, uint32_t count);
+
+#endif /* IMPORTANCE_INHERITANCE */
+
+extern int task_low_mem_privileged_listener(task_t task, boolean_t new_value, boolean_t *old_value);
+extern boolean_t task_has_been_notified(task_t task, int pressurelevel);
+extern boolean_t task_used_for_purging(task_t task, int pressurelevel);
+extern void task_mark_has_been_notified(task_t task, int pressurelevel);
+extern void task_mark_used_for_purging(task_t task, int pressurelevel);
+extern void task_clear_has_been_notified(task_t task, int pressurelevel);
+extern void task_clear_used_for_purging(task_t task);
+extern int task_importance_estimate(task_t task);
+
+extern int task_pid(task_t task);
+
+/* End task_policy */
+
+extern kern_return_t task_purge_volatile_memory(task_t task);
+
+extern void task_set_gpu_denied(task_t task, boolean_t denied);
+extern boolean_t task_is_gpu_denied(task_t task);
+
+#define TASK_WRITE_IMMEDIATE 0x1
+#define TASK_WRITE_DEFERRED 0x2
+#define TASK_WRITE_INVALIDATED 0x4
+#define TASK_WRITE_METADATA 0x8
+extern void task_update_logical_writes(task_t task, uint32_t io_size, int flags);
+
+extern queue_head_t * task_io_user_clients(task_t task);
#endif /* XNU_KERNEL_PRIVATE */
extern void *get_bsdtask_info(task_t);
extern void *get_bsdthreadtask_info(thread_t);
+extern void task_bsdtask_kill(task_t);
extern vm_map_t get_task_map(task_t);
+extern ledger_t get_task_ledger(task_t);
+
+extern boolean_t get_task_pidsuspended(task_t);
+extern boolean_t get_task_frozen(task_t);
+
+/* Convert from a task to a port */
+extern ipc_port_t convert_task_to_port(task_t);
+extern ipc_port_t convert_task_name_to_port(task_name_t);
+extern ipc_port_t convert_task_suspension_token_to_port(task_suspension_token_t task);
+
+/* Convert from a port (in this case, an SO right to a task's resume port) to a task. */
+extern task_suspension_token_t convert_port_to_task_suspension_token(ipc_port_t port);
+
+extern boolean_t task_suspension_notify(mach_msg_header_t *);
#endif /* KERNEL_PRIVATE */
extern void task_name_deallocate(
task_name_t task_name);
+
+extern void task_suspension_token_deallocate(
+ task_suspension_token_t token);
__END_DECLS
#endif /* _KERN_TASK_H_ */
projects / apple / xnu.git / blobdiff