#include <kern/clock.h>
#include <libkern/libkern.h>
#include <i386/lapic.h>
-#include <i386/pmCPU.h>
static int
0, 0,
misc_machine_check_panic, "A", "Machine-check exception test");
+
+
+extern void timer_queue_trace_cpu(int);
+static int
+misc_timer_queue_trace(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int changed = 0, error;
+ char buf[128];
+ buf[0] = '\0';
+
+ error = sysctl_io_string(req, buf, sizeof(buf), 0, &changed);
+
+ if (error == 0 && changed) {
+ timer_queue_trace_cpu(0);
+ }
+ return error;
+}
+
+SYSCTL_PROC(_machdep_misc, OID_AUTO, timer_queue_trace,
+ CTLTYPE_STRING | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0,
+ misc_timer_queue_trace, "A", "Cut timer queue tracepoint");
+
+extern long NMI_count;
+extern void NMI_cpus(void);
+static int
+misc_nmis(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req)
+{
+ int new = 0, old = 0, changed = 0, error;
+
+ old = NMI_count;
+
+ error = sysctl_io_number(req, old, sizeof(int), &new, &changed);
+ if (error == 0 && changed) {
+ NMI_cpus();
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_machdep_misc, OID_AUTO, nmis,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0,
+ misc_nmis, "I", "Report/increment NMI count");
+
+/* Parameters related to timer coalescing tuning, to be replaced
+ * with a dedicated systemcall in the future.
+ */
+/* Enable processing pending timers in the context of any other interrupt */
+SYSCTL_INT(_kern, OID_AUTO, interrupt_timer_coalescing_enabled,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &interrupt_timer_coalescing_enabled, 0, "");
+/* Upon entering idle, process pending timers with HW deadlines
+ * this far in the future.
+ */
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_idle_entry_hard_deadline_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &idle_entry_timer_processing_hdeadline_threshold, 0, "");
+/* Coalescing tuning parameters for various thread/task attributes */
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_bg_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_bg_shift, 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_bg_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_bg_ns_max, "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_kt_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_kt_shift, 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_kt_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_kt_ns_max, "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_fp_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_fp_shift, 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_fp_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_fp_ns_max, "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_ts_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_ts_shift, 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_ts_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.timer_coalesce_ts_ns_max, "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier0_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[0], 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_tier0_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_ns_max[0], "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier1_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[1], 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_tier1_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_ns_max[1], "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier2_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[2], 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_tier2_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_ns_max[2], "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier3_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[3], 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_tier3_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_ns_max[3], "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier4_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[4], 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_tier4_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_ns_max[4], "");
+
+SYSCTL_INT(_kern, OID_AUTO, timer_coalesce_tier5_scale,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_scale[5], 0, "");
+
+SYSCTL_QUAD(_kern, OID_AUTO, timer_coalesce_tier5_ns_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &tcoal_prio_params.latency_qos_ns_max[5], "");
+
+/* Track potentially expensive eager timer evaluations on QoS tier
+ * switches.
+ */
+extern uint32_t ml_timer_eager_evaluations;
+
+SYSCTL_INT(_machdep, OID_AUTO, eager_timer_evaluations,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &ml_timer_eager_evaluations, 0, "");
+
+extern uint64_t ml_timer_eager_evaluation_max;
+
+SYSCTL_QUAD(_machdep, OID_AUTO, eager_timer_evaluation_max,
+ CTLFLAG_KERN | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &ml_timer_eager_evaluation_max, "");
+
+/* Communicate the "user idle level" heuristic to the timer layer, and
+ * potentially other layers in the future.
+ */
+
+static int
+timer_set_user_idle_level(__unused struct sysctl_oid *oidp, __unused void *arg1, __unused int arg2, struct sysctl_req *req) {
+ int new_value = 0, old_value = 0, changed = 0, error;
+
+ old_value = ml_timer_get_user_idle_level();
+
+ error = sysctl_io_number(req, old_value, sizeof(int), &new_value, &changed);
+
+ if (error == 0 && changed) {
+ if (ml_timer_set_user_idle_level(new_value) != KERN_SUCCESS)
+ error = ERANGE;
+ }
+
+ return error;
+}
+
+SYSCTL_PROC(_machdep, OID_AUTO, user_idle_level,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ 0, 0,
+ timer_set_user_idle_level, "I", "User idle level heuristic, 0-128");
projects / apple / xnu.git / blobdiff