+ return KERN_SUCCESS;
+ }
+
+ case HOST_EXPIRED_TASK_INFO: {
+ if (*count < TASK_POWER_INFO_COUNT) {
+ return KERN_FAILURE;
+ }
+
+ task_power_info_t tinfo1 = (task_power_info_t)info;
+ task_power_info_v2_t tinfo2 = (task_power_info_v2_t)info;
+
+ tinfo1->task_interrupt_wakeups = dead_task_statistics.task_interrupt_wakeups;
+ tinfo1->task_platform_idle_wakeups = dead_task_statistics.task_platform_idle_wakeups;
+
+ tinfo1->task_timer_wakeups_bin_1 = dead_task_statistics.task_timer_wakeups_bin_1;
+
+ tinfo1->task_timer_wakeups_bin_2 = dead_task_statistics.task_timer_wakeups_bin_2;
+
+ tinfo1->total_user = dead_task_statistics.total_user_time;
+ tinfo1->total_system = dead_task_statistics.total_system_time;
+ if (*count < TASK_POWER_INFO_V2_COUNT) {
+ *count = TASK_POWER_INFO_COUNT;
+ } else if (*count >= TASK_POWER_INFO_V2_COUNT) {
+ tinfo2->gpu_energy.task_gpu_utilisation = dead_task_statistics.task_gpu_ns;
+#if defined(__arm__) || defined(__arm64__)
+ tinfo2->task_energy = dead_task_statistics.task_energy;
+ tinfo2->task_ptime = dead_task_statistics.total_ptime;
+ tinfo2->task_pset_switches = dead_task_statistics.total_pset_switches;
+#endif
+ *count = TASK_POWER_INFO_V2_COUNT;
+ }
+
+ return KERN_SUCCESS;
+ }
+ default: return KERN_INVALID_ARGUMENT;
+ }
+}
+
+extern uint32_t c_segment_pages_compressed;
+
+#define HOST_STATISTICS_TIME_WINDOW 1 /* seconds */
+#define HOST_STATISTICS_MAX_REQUESTS 10 /* maximum number of requests per window */
+#define HOST_STATISTICS_MIN_REQUESTS 2 /* minimum number of requests per window */
+
+uint64_t host_statistics_time_window;
+
+static LCK_GRP_DECLARE(host_statistics_lck_grp, "host_statistics");
+static LCK_MTX_DECLARE(host_statistics_lck, &host_statistics_lck_grp);
+
+#define HOST_VM_INFO64_REV0 0
+#define HOST_VM_INFO64_REV1 1
+#define HOST_EXTMOD_INFO64_REV0 2
+#define HOST_LOAD_INFO_REV0 3
+#define HOST_VM_INFO_REV0 4
+#define HOST_VM_INFO_REV1 5
+#define HOST_VM_INFO_REV2 6
+#define HOST_CPU_LOAD_INFO_REV0 7
+#define HOST_EXPIRED_TASK_INFO_REV0 8
+#define HOST_EXPIRED_TASK_INFO_REV1 9
+#define NUM_HOST_INFO_DATA_TYPES 10
+
+static vm_statistics64_data_t host_vm_info64_rev0 = {};
+static vm_statistics64_data_t host_vm_info64_rev1 = {};
+static vm_extmod_statistics_data_t host_extmod_info64 = {};
+static host_load_info_data_t host_load_info = {};
+static vm_statistics_data_t host_vm_info_rev0 = {};
+static vm_statistics_data_t host_vm_info_rev1 = {};
+static vm_statistics_data_t host_vm_info_rev2 = {};
+static host_cpu_load_info_data_t host_cpu_load_info = {};
+static task_power_info_data_t host_expired_task_info = {};
+static task_power_info_v2_data_t host_expired_task_info2 = {};
+
+struct host_stats_cache {
+ uint64_t last_access;
+ uint64_t current_requests;
+ uint64_t max_requests;
+ uintptr_t data;
+ mach_msg_type_number_t count; //NOTE count is in sizeof(integer_t)
+};
+
+static struct host_stats_cache g_host_stats_cache[NUM_HOST_INFO_DATA_TYPES] = {
+ [HOST_VM_INFO64_REV0] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_vm_info64_rev0, .count = HOST_VM_INFO64_REV0_COUNT },
+ [HOST_VM_INFO64_REV1] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_vm_info64_rev1, .count = HOST_VM_INFO64_REV1_COUNT },
+ [HOST_EXTMOD_INFO64_REV0] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_extmod_info64, .count = HOST_EXTMOD_INFO64_COUNT },
+ [HOST_LOAD_INFO_REV0] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_load_info, .count = HOST_LOAD_INFO_COUNT },
+ [HOST_VM_INFO_REV0] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_vm_info_rev0, .count = HOST_VM_INFO_REV0_COUNT },
+ [HOST_VM_INFO_REV1] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_vm_info_rev1, .count = HOST_VM_INFO_REV1_COUNT },
+ [HOST_VM_INFO_REV2] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_vm_info_rev2, .count = HOST_VM_INFO_REV2_COUNT },
+ [HOST_CPU_LOAD_INFO_REV0] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_cpu_load_info, .count = HOST_CPU_LOAD_INFO_COUNT },
+ [HOST_EXPIRED_TASK_INFO_REV0] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_expired_task_info, .count = TASK_POWER_INFO_COUNT },
+ [HOST_EXPIRED_TASK_INFO_REV1] = { .last_access = 0, .current_requests = 0, .max_requests = 0, .data = (uintptr_t)&host_expired_task_info2, .count = TASK_POWER_INFO_V2_COUNT},
+};
+
+
+void
+host_statistics_init(void)
+{
+ nanoseconds_to_absolutetime((HOST_STATISTICS_TIME_WINDOW * NSEC_PER_SEC), &host_statistics_time_window);
+}
+
+static void
+cache_host_statistics(int index, host_info64_t info)
+{
+ if (index < 0 || index >= NUM_HOST_INFO_DATA_TYPES) {
+ return;
+ }
+
+ task_t task = current_task();
+ if (task->t_flags & TF_PLATFORM) {
+ return;
+ }
+
+ memcpy((void *)g_host_stats_cache[index].data, info, g_host_stats_cache[index].count * sizeof(integer_t));
+ return;
+}
+
+static void
+get_cached_info(int index, host_info64_t info, mach_msg_type_number_t* count)
+{
+ if (index < 0 || index >= NUM_HOST_INFO_DATA_TYPES) {
+ *count = 0;
+ return;
projects / apple / xnu.git / blobdiff