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Diffstat (limited to 'kernel/sysctl.c')
-rw-r--r--kernel/sysctl.c294
1 files changed, 258 insertions, 36 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index d964422eb601..c272e31f37ea 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -124,12 +124,16 @@ static int __maybe_unused neg_one = -1;
static int zero;
static int __maybe_unused one = 1;
static int __maybe_unused two = 2;
+static int __maybe_unused three = 3;
static int __maybe_unused four = 4;
static unsigned long one_ul = 1;
static int one_hundred = 100;
#ifdef CONFIG_PRINTK
static int ten_thousand = 10000;
#endif
+#ifdef CONFIG_SCHED_HMP
+static int one_thousand = 1000;
+#endif
/* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */
static unsigned long dirty_bytes_min = 2 * PAGE_SIZE;
@@ -285,62 +289,251 @@ static struct ctl_table kern_table[] = {
.mode = 0644,
.proc_handler = proc_dointvec,
},
-#ifdef CONFIG_SCHED_DEBUG
{
- .procname = "sched_min_granularity_ns",
- .data = &sysctl_sched_min_granularity,
+ .procname = "sched_wake_to_idle",
+ .data = &sysctl_sched_wake_to_idle,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = sched_proc_update_handler,
- .extra1 = &min_sched_granularity_ns,
- .extra2 = &max_sched_granularity_ns,
+ .proc_handler = proc_dointvec,
},
+#ifdef CONFIG_SCHED_HMP
{
- .procname = "sched_latency_ns",
- .data = &sysctl_sched_latency,
+ .procname = "sched_freq_reporting_policy",
+ .data = &sysctl_sched_freq_reporting_policy,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = sched_proc_update_handler,
- .extra1 = &min_sched_granularity_ns,
- .extra2 = &max_sched_granularity_ns,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
},
{
- .procname = "sched_is_big_little",
- .data = &sysctl_sched_is_big_little,
+ .procname = "sched_freq_inc_notify",
+ .data = &sysctl_sched_freq_inc_notify,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
},
-#ifdef CONFIG_SCHED_WALT
{
- .procname = "sched_use_walt_cpu_util",
- .data = &sysctl_sched_use_walt_cpu_util,
+ .procname = "sched_freq_dec_notify",
+ .data = &sysctl_sched_freq_dec_notify,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
},
{
- .procname = "sched_use_walt_task_util",
- .data = &sysctl_sched_use_walt_task_util,
+ .procname = "sched_cpu_high_irqload",
+ .data = &sysctl_sched_cpu_high_irqload,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "sched_ravg_hist_size",
+ .data = &sysctl_sched_ravg_hist_size,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_window_update_handler,
+ },
+ {
+ .procname = "sched_window_stats_policy",
+ .data = &sysctl_sched_window_stats_policy,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_window_update_handler,
+ },
+ {
+ .procname = "sched_spill_load",
+ .data = &sysctl_sched_spill_load_pct,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ .extra2 = &one_hundred,
},
{
- .procname = "sched_walt_init_task_load_pct",
- .data = &sysctl_sched_walt_init_task_load_pct,
+ .procname = "sched_spill_nr_run",
+ .data = &sysctl_sched_spill_nr_run,
.maxlen = sizeof(unsigned int),
.mode = 0644,
- .proc_handler = proc_dointvec,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ },
+ {
+ .procname = "sched_upmigrate",
+ .data = &sysctl_sched_upmigrate_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ .extra2 = &one_hundred,
+ },
+ {
+ .procname = "sched_downmigrate",
+ .data = &sysctl_sched_downmigrate_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ .extra2 = &one_hundred,
+ },
+ {
+ .procname = "sched_group_upmigrate",
+ .data = &sysctl_sched_group_upmigrate_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ },
+ {
+ .procname = "sched_group_downmigrate",
+ .data = &sysctl_sched_group_downmigrate_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ },
+ {
+ .procname = "sched_init_task_load",
+ .data = &sysctl_sched_init_task_load_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ .extra2 = &one_hundred,
+ },
+ {
+ .procname = "sched_select_prev_cpu_us",
+ .data = &sysctl_sched_select_prev_cpu_us,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ },
+ {
+ .procname = "sched_enable_colocation",
+ .data = &sysctl_sched_enable_colocation,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+ {
+ .procname = "sched_restrict_cluster_spill",
+ .data = &sysctl_sched_restrict_cluster_spill,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+ {
+ .procname = "sched_small_wakee_task_load",
+ .data = &sysctl_sched_small_wakee_task_load_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ .extra2 = &one_hundred,
+ },
+ {
+ .procname = "sched_big_waker_task_load",
+ .data = &sysctl_sched_big_waker_task_load_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ .extra2 = &one_hundred,
},
{
- .procname = "sched_walt_cpu_high_irqload",
- .data = &sysctl_sched_walt_cpu_high_irqload,
+ .procname = "sched_prefer_sync_wakee_to_waker",
+ .data = &sysctl_sched_prefer_sync_wakee_to_waker,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ .extra2 = &one,
+ },
+ {
+ .procname = "sched_enable_thread_grouping",
+ .data = &sysctl_sched_enable_thread_grouping,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "sched_new_task_windows",
+ .data = &sysctl_sched_new_task_windows,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_window_update_handler,
+ },
+ {
+ .procname = "sched_pred_alert_freq",
+ .data = &sysctl_sched_pred_alert_freq,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = &zero,
+ },
+ {
+ .procname = "sched_freq_aggregate",
+ .data = &sysctl_sched_freq_aggregate,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_window_update_handler,
+ },
+ {
+ .procname = "sched_freq_aggregate_threshold",
+ .data = &sysctl_sched_freq_aggregate_threshold_pct,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_hmp_proc_update_handler,
+ .extra1 = &zero,
+ /*
+ * Special handling for sched_freq_aggregate_threshold_pct
+ * which can be greater than 100. Use 1000 as an upper bound
+ * value which works for all practical use cases.
+ */
+ .extra2 = &one_thousand,
+ },
+ {
+ .procname = "sched_boost",
+ .data = &sysctl_sched_boost,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_boost_handler,
+ .extra1 = &zero,
+ .extra2 = &three,
+ },
+#endif /* CONFIG_SCHED_HMP */
+#ifdef CONFIG_SCHED_DEBUG
+ {
+ .procname = "sched_min_granularity_ns",
+ .data = &sysctl_sched_min_granularity,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_proc_update_handler,
+ .extra1 = &min_sched_granularity_ns,
+ .extra2 = &max_sched_granularity_ns,
+ },
+ {
+ .procname = "sched_latency_ns",
+ .data = &sysctl_sched_latency,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = sched_proc_update_handler,
+ .extra1 = &min_sched_granularity_ns,
+ .extra2 = &max_sched_granularity_ns,
+ },
+ {
+ .procname = "sched_is_big_little",
+ .data = &sysctl_sched_is_big_little,
.maxlen = sizeof(unsigned int),
.mode = 0644,
.proc_handler = proc_dointvec,
},
-#endif
{
.procname = "sched_sync_hint_enable",
.data = &sysctl_sched_sync_hint_enable,
@@ -1246,6 +1439,27 @@ static struct ctl_table kern_table[] = {
.extra2 = &one,
},
#endif
+#if defined(CONFIG_ARM) || defined(CONFIG_ARM64)
+ {
+ .procname = "boot_reason",
+ .data = &boot_reason,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+
+ {
+ .procname = "cold_boot",
+ .data = &cold_boot,
+ .maxlen = sizeof(int),
+ .mode = 0444,
+ .proc_handler = proc_dointvec,
+ },
+#endif
+/*
+ * NOTE: do not add new entries to this table unless you have read
+ * Documentation/sysctl/ctl_unnumbered.txt
+ */
{ }
};
@@ -1672,6 +1886,22 @@ static struct ctl_table vm_table[] = {
.extra2 = (void *)&mmap_rnd_compat_bits_max,
},
#endif
+#ifdef CONFIG_SWAP
+ {
+ .procname = "swap_ratio",
+ .data = &sysctl_swap_ratio,
+ .maxlen = sizeof(sysctl_swap_ratio),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ },
+ {
+ .procname = "swap_ratio_enable",
+ .data = &sysctl_swap_ratio_enable,
+ .maxlen = sizeof(sysctl_swap_ratio_enable),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ },
+#endif
{ }
};
@@ -2133,15 +2363,7 @@ static int do_proc_dointvec_conv(bool *negp, unsigned long *lvalp,
int write, void *data)
{
if (write) {
- if (*negp) {
- if (*lvalp > (unsigned long) INT_MAX + 1)
- return -EINVAL;
- *valp = -*lvalp;
- } else {
- if (*lvalp > (unsigned long) INT_MAX)
- return -EINVAL;
- *valp = *lvalp;
- }
+ *valp = *negp ? -*lvalp : *lvalp;
} else {
int val = *valp;
if (val < 0) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-22 23:26:12 +0000