1 /* 2 * Copyright 2022 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <stdint.h> 20 21 #ifdef __cplusplus 22 #include <type_traits> 23 24 namespace android { 25 namespace gpuwork { 26 #endif 27 28 typedef struct { 29 uint32_t gpu_id; 30 uint32_t uid; 31 } GpuIdUid; 32 33 typedef struct { 34 // The end time of the previous period where the GPU was active for the UID, 35 // in nanoseconds. 36 uint64_t previous_active_end_time_ns; 37 38 // The total amount of time the GPU has spent running work for the UID, in 39 // nanoseconds. 40 uint64_t total_active_duration_ns; 41 42 // The total amount of time of the "gaps" between "continuous" GPU work for 43 // the UID, in nanoseconds. This is estimated by ignoring large gaps between 44 // GPU work for this UID. 45 uint64_t total_inactive_duration_ns; 46 47 // The number of errors detected due to |GpuWorkPeriodEvent| events for the 48 // UID violating the specification in some way. E.g. periods with a zero or 49 // negative duration. 50 uint32_t error_count; 51 52 // Needed to make 32-bit arch struct size match 64-bit BPF arch struct size. 53 uint32_t padding0; 54 } UidTrackingInfo; 55 56 typedef struct { 57 // We cannot query the number of entries in BPF map |gpu_work_map|. We track 58 // the number of entries (approximately) using a counter so we can check if 59 // the map is nearly full. 60 uint64_t num_map_entries; 61 } GlobalData; 62 63 // The maximum number of tracked GPU ID and UID pairs (|GpuIdUid|). 64 static const uint32_t kMaxTrackedGpuIdUids = 512; 65 66 #ifdef __cplusplus 67 } // namespace gpuwork 68 } // namespace android 69 #endif 70