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sched/walt: Make walt_task_struct struct public
The walt_task_struct structure is used by WALT module. WALT type cast the task_struct's android vendor data to walt_task_struct and use it for the scheduler needs. However there can be other users who wants to cache information per task. Currently walt_task_struct is defined in WALT's private header and can't be included by other modules. Move the walt_task_struct and dependent structures to appropriate header file so that is becomes public. This movement also allows wake_up_idle related funcitons to define in the public header and keep the inline functionality instead of exporting them for the other modules usage. Change-Id: If8c94c7d6cd709bbc56aa08eb964d135a492a530 Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
This commit is contained in:
Pavankumar Kondeti
Rishabh Bhatnagar
parent
058346c758
commit
bcb5863521
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@ -7,8 +7,93 @@
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#define _LINUX_SCHED_WALT_H
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#include <linux/types.h>
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#include <linux/spinlock_types.h>
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#include <linux/cpumask.h>
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#if IS_ENABLED(CONFIG_SCHED_WALT)
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#define WALT_NR_CPUS 8
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#define RAVG_HIST_SIZE_MAX 5
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#define NUM_BUSY_BUCKETS 10
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struct walt_related_thread_group {
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int id;
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raw_spinlock_t lock;
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struct list_head tasks;
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struct list_head list;
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bool skip_min;
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struct rcu_head rcu;
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u64 last_update;
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u64 downmigrate_ts;
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u64 start_ts;
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};
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struct walt_task_struct {
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/*
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* 'mark_start' marks the beginning of an event (task waking up, task
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* starting to execute, task being preempted) within a window
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*
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* 'sum' represents how runnable a task has been within current
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* window. It incorporates both running time and wait time and is
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* frequency scaled.
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*
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* 'sum_history' keeps track of history of 'sum' seen over previous
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* RAVG_HIST_SIZE windows. Windows where task was entirely sleeping are
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* ignored.
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*
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* 'demand' represents maximum sum seen over previous
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* sysctl_sched_ravg_hist_size windows. 'demand' could drive frequency
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* demand for tasks.
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*
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* 'curr_window_cpu' represents task's contribution to cpu busy time on
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* various CPUs in the current window
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*
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* 'prev_window_cpu' represents task's contribution to cpu busy time on
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* various CPUs in the previous window
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*
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* 'curr_window' represents the sum of all entries in curr_window_cpu
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*
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* 'prev_window' represents the sum of all entries in prev_window_cpu
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*
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* 'pred_demand' represents task's current predicted cpu busy time
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*
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* 'busy_buckets' groups historical busy time into different buckets
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* used for prediction
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*
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* 'demand_scaled' represents task's demand scaled to 1024
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*/
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u64 mark_start;
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u32 sum, demand;
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u32 coloc_demand;
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u32 sum_history[RAVG_HIST_SIZE_MAX];
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u32 curr_window_cpu[WALT_NR_CPUS];
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u32 prev_window_cpu[WALT_NR_CPUS];
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u32 curr_window, prev_window;
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u32 pred_demand;
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u8 busy_buckets[NUM_BUSY_BUCKETS];
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u16 demand_scaled;
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u16 pred_demand_scaled;
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u64 active_time;
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u64 last_win_size;
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int boost;
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bool wake_up_idle;
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bool misfit;
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bool rtg_high_prio;
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u8 low_latency;
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u64 boost_period;
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u64 boost_expires;
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u64 last_sleep_ts;
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u32 init_load_pct;
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u32 unfilter;
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u64 last_wake_ts;
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u64 last_enqueued_ts;
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struct walt_related_thread_group __rcu *grp;
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struct list_head grp_list;
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u64 cpu_cycles;
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cpumask_t cpus_requested;
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bool iowaited;
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};
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extern int sched_lpm_disallowed_time(int cpu, u64 *timeout);
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extern int set_task_boost(int boost, u64 period);
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#else
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@ -8,6 +8,7 @@
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#include "../../../kernel/sched/sched.h"
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#include "../../../fs/proc/internal.h"
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#include <linux/sched/walt.h>
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#include <linux/sched/core_ctl.h>
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#include <linux/jump_label.h>
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@ -57,79 +58,9 @@ enum task_boost_type {
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TASK_BOOST_END,
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};
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#define WALT_NR_CPUS 8
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#define RAVG_HIST_SIZE_MAX 5
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#define NUM_BUSY_BUCKETS 10
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#define WALT_LOW_LATENCY_PROCFS BIT(0)
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#define WALT_LOW_LATENCY_BINDER BIT(1)
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struct walt_task_struct {
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/*
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* 'mark_start' marks the beginning of an event (task waking up, task
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* starting to execute, task being preempted) within a window
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*
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* 'sum' represents how runnable a task has been within current
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* window. It incorporates both running time and wait time and is
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* frequency scaled.
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*
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* 'sum_history' keeps track of history of 'sum' seen over previous
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* RAVG_HIST_SIZE windows. Windows where task was entirely sleeping are
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* ignored.
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*
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* 'demand' represents maximum sum seen over previous
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* sysctl_sched_ravg_hist_size windows. 'demand' could drive frequency
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* demand for tasks.
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*
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* 'curr_window_cpu' represents task's contribution to cpu busy time on
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* various CPUs in the current window
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*
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* 'prev_window_cpu' represents task's contribution to cpu busy time on
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* various CPUs in the previous window
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*
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* 'curr_window' represents the sum of all entries in curr_window_cpu
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*
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* 'prev_window' represents the sum of all entries in prev_window_cpu
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*
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* 'pred_demand' represents task's current predicted cpu busy time
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*
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* 'busy_buckets' groups historical busy time into different buckets
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* used for prediction
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*
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* 'demand_scaled' represents task's demand scaled to 1024
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*/
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u64 mark_start;
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u32 sum, demand;
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u32 coloc_demand;
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u32 sum_history[RAVG_HIST_SIZE_MAX];
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u32 curr_window_cpu[WALT_NR_CPUS];
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u32 prev_window_cpu[WALT_NR_CPUS];
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u32 curr_window, prev_window;
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u32 pred_demand;
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u8 busy_buckets[NUM_BUSY_BUCKETS];
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u16 demand_scaled;
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u16 pred_demand_scaled;
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u64 active_time;
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u64 last_win_size;
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int boost;
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bool wake_up_idle;
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bool misfit;
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bool rtg_high_prio;
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u8 low_latency;
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u64 boost_period;
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u64 boost_expires;
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u64 last_sleep_ts;
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u32 init_load_pct;
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u32 unfilter;
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u64 last_wake_ts;
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u64 last_enqueued_ts;
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struct walt_related_thread_group __rcu *grp;
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struct list_head grp_list;
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u64 cpu_cycles;
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cpumask_t cpus_requested;
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bool iowaited;
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};
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struct walt_cpu_load {
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unsigned long nl;
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unsigned long pl;
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@ -212,18 +143,6 @@ struct walt_sched_cluster {
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u64 aggr_grp_load;
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};
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struct walt_related_thread_group {
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int id;
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raw_spinlock_t lock;
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struct list_head tasks;
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struct list_head list;
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bool skip_min;
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struct rcu_head rcu;
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u64 last_update;
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u64 downmigrate_ts;
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u64 start_ts;
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};
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extern struct walt_sched_cluster *sched_cluster[WALT_NR_CPUS];
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extern struct walt_sched_cluster *rq_cluster(struct rq *rq);
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