2e14f01dc4
We have debug infrastructure built on top of preempt/irq disable/enable events. This requires modifications to the kernel tracing code. Since this is not feasible with GKI, we started with registering to the existing preemptirq trace events. However the performance of wide variety of use cases are regressed as the rate of preemptirq events is super high and generic trace events are slow. Since GKI allows optimized trace events via restricted trace hooks, add the same for preemptirq event. Bug: 174541725 Change-Id: Ic8d3cdd1c1aa6a9267d0b755694fedffa2ea8e36 Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
100 lines
4.8 KiB
C
100 lines
4.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/* vendor_hook.c
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*
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* Android Vendor Hook Support
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*
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* Copyright 2020 Google LLC
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*/
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#define CREATE_TRACE_POINTS
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#include <trace/hooks/vendor_hooks.h>
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#include <trace/hooks/sched.h>
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#include <trace/hooks/fpsimd.h>
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#include <trace/hooks/binder.h>
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#include <trace/hooks/rwsem.h>
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#include <trace/hooks/futex.h>
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#include <trace/hooks/dtask.h>
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#include <trace/hooks/cpuidle.h>
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#include <trace/hooks/topology.h>
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#include <trace/hooks/mpam.h>
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#include <trace/hooks/gic.h>
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#include <trace/hooks/wqlockup.h>
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#include <trace/hooks/debug.h>
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#include <trace/hooks/sysrqcrash.h>
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#include <trace/hooks/printk.h>
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#include <trace/hooks/gic_v3.h>
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#include <trace/hooks/epoch.h>
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#include <trace/hooks/cpufreq.h>
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#include <trace/hooks/mm.h>
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#include <trace/hooks/preemptirq.h>
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/*
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* Export tracepoints that act as a bare tracehook (ie: have no trace event
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* associated with them) to allow external modules to probe them.
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*/
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_task_rq_fair);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_task_rq_rt);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_select_fallback_rq);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_scheduler_tick);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_enqueue_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_dequeue_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_can_migrate_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_lowest_rq);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_rtmutex_prepare_setprio);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_prepare_prio_fork);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_finish_prio_fork);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_user_nice);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_setscheduler);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_arch_set_freq_scale);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_is_fpsimd_save);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_transaction_init);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_set_priority);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_restore_priority);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_wakeup_poll_threads_ilocked);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_wakeup_thread_ilocked);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_init);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_wake);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_finished);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alter_rwsem_list_add);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_alter_futex_plist_add);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_wait_start);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mutex_wait_finish);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_read_wait_start);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_read_wait_finish);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_wait_start);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_rwsem_write_wait_finish);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sched_show_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cpu_idle);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_mpam_set);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_busiest_group);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_resume);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_wq_lockup_pool);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_ipi_stop);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_sysrq_crash);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dump_throttled_rt_tasks);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_printk_hotplug);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_jiffies_update);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_v3_set_affinity);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_gic_v3_affinity_init);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_suspend_epoch_val);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_resume_epoch_val);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_show_max_freq);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_freq_table_limits);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_newidle_balance);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_nohz_balancer_kick);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_busiest_queue);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_migrate_queued_task);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_energy_efficient_cpu);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_sugov_sched_attr);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_iowait);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_sugov_update);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_sched_setaffinity);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_cpus_allowed);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_skip_swapcache_flags);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_gfp_zone_flags);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_readahead_gfp_mask);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_preempt_disable);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_preempt_enable);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_irqs_disable);
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EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_irqs_enable);
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