pub const PERF = struct {
    pub const TYPE = enum(u32) {
        HARDWARE,
        SOFTWARE,
        TRACEPOINT,
        HW_CACHE,
        RAW,
        BREAKPOINT,
        MAX,
        _,
    };

    pub const COUNT = struct {
        pub const HW = enum(u32) {
            CPU_CYCLES,
            INSTRUCTIONS,
            CACHE_REFERENCES,
            CACHE_MISSES,
            BRANCH_INSTRUCTIONS,
            BRANCH_MISSES,
            BUS_CYCLES,
            STALLED_CYCLES_FRONTEND,
            STALLED_CYCLES_BACKEND,
            REF_CPU_CYCLES,
            MAX,

            pub const CACHE = enum(u32) {
                L1D,
                L1I,
                LL,
                DTLB,
                ITLB,
                BPU,
                NODE,
                MAX,

                pub const OP = enum(u32) {
                    READ,
                    WRITE,
                    PREFETCH,
                    MAX,
                };

                pub const RESULT = enum(u32) {
                    ACCESS,
                    MISS,
                    MAX,
                };
            };
        };

        pub const SW = enum(u32) {
            CPU_CLOCK,
            TASK_CLOCK,
            PAGE_FAULTS,
            CONTEXT_SWITCHES,
            CPU_MIGRATIONS,
            PAGE_FAULTS_MIN,
            PAGE_FAULTS_MAJ,
            ALIGNMENT_FAULTS,
            EMULATION_FAULTS,
            DUMMY,
            BPF_OUTPUT,
            MAX,
        };
    };

    pub const SAMPLE = struct {
        pub const IP = 1;
        pub const TID = 2;
        pub const TIME = 4;
        pub const ADDR = 8;
        pub const READ = 16;
        pub const CALLCHAIN = 32;
        pub const ID = 64;
        pub const CPU = 128;
        pub const PERIOD = 256;
        pub const STREAM_ID = 512;
        pub const RAW = 1024;
        pub const BRANCH_STACK = 2048;
        pub const REGS_USER = 4096;
        pub const STACK_USER = 8192;
        pub const WEIGHT = 16384;
        pub const DATA_SRC = 32768;
        pub const IDENTIFIER = 65536;
        pub const TRANSACTION = 131072;
        pub const REGS_INTR = 262144;
        pub const PHYS_ADDR = 524288;
        pub const MAX = 1048576;

        pub const BRANCH = struct {
            pub const USER = 1 << 0;
            pub const KERNEL = 1 << 1;
            pub const HV = 1 << 2;
            pub const ANY = 1 << 3;
            pub const ANY_CALL = 1 << 4;
            pub const ANY_RETURN = 1 << 5;
            pub const IND_CALL = 1 << 6;
            pub const ABORT_TX = 1 << 7;
            pub const IN_TX = 1 << 8;
            pub const NO_TX = 1 << 9;
            pub const COND = 1 << 10;
            pub const CALL_STACK = 1 << 11;
            pub const IND_JUMP = 1 << 12;
            pub const CALL = 1 << 13;
            pub const NO_FLAGS = 1 << 14;
            pub const NO_CYCLES = 1 << 15;
            pub const TYPE_SAVE = 1 << 16;
            pub const MAX = 1 << 17;
        };
    };

    pub const FLAG = struct {
        pub const FD_NO_GROUP = 1 << 0;
        pub const FD_OUTPUT = 1 << 1;
        pub const PID_CGROUP = 1 << 2;
        pub const FD_CLOEXEC = 1 << 3;
    };

    pub const EVENT_IOC = struct {
        pub const ENABLE = 9216;
        pub const DISABLE = 9217;
        pub const REFRESH = 9218;
        pub const RESET = 9219;
        pub const PERIOD = 1074275332;
        pub const SET_OUTPUT = 9221;
        pub const SET_FILTER = 1074275334;
        pub const SET_BPF = 1074013192;
        pub const PAUSE_OUTPUT = 1074013193;
        pub const QUERY_BPF = 3221758986;
        pub const MODIFY_ATTRIBUTES = 1074275339;
    };

    pub const IOC_FLAG_GROUP = 1;
}