Kernel-4.18.0-80.el8_kryo-cpufreq

published: updated: Kernel_4.18.0-80.el8_内核文档

Qualcomm Technologies, Inc. KRYO CPUFreq and OPP bindings

In Certain Qualcomm Technologies, Inc. SoCs like apq8096 and msm8996
that have KRYO processors, the CPU ferequencies subset and voltage value
of each OPP varies based on the silicon variant in use.
Qualcomm Technologies, Inc. Process Voltage Scaling Tables
defines the voltage and frequency value based on the msm-id in SMEM
and speedbin blown in the efuse combination.
The qcom-cpufreq-kryo driver reads the msm-id and efuse value from the SoC
to provide the OPP framework with required information (existing HW bitmap).
This is used to determine the voltage and frequency value for each OPP of
operating-points-v2 table when it is parsed by the OPP framework.

Required properties:

In ‘cpus’ nodes:

  • operating-points-v2: Phandle to the operating-points-v2 table to use.

In ‘operating-points-v2’ table:

  • compatible: Should be
    • ‘operating-points-v2-kryo-cpu’ for apq8096 and msm8996.
  • nvmem-cells: A phandle pointing to a nvmem-cells node representing the
      efuse registers that has information about the
  speedbin that is used to select the right frequency/voltage
  value pair.
  Please refer the for nvmem-cells
  bindings Documentation/devicetree/bindings/nvmem/nvmem.txt
  and also examples below.

In every OPP node:

  • opp-supported-hw: A single 32 bit bitmap value, representing compatible HW.
          Bitmap:
      0:    MSM8996 V3, speedbin 0
      1:    MSM8996 V3, speedbin 1
      2:    MSM8996 V3, speedbin 2
      3:    unused
      4:    MSM8996 SG, speedbin 0
      5:    MSM8996 SG, speedbin 1
      6:    MSM8996 SG, speedbin 2
      7-31:    unused

Example 1:

cpus {
    #address-cells = <2>;
    #size-cells = <0>;

    CPU0: cpu@0 {
        device_type = "cpu";
        compatible = "qcom,kryo";
        reg = <0x0 0x0>;
        enable-method = "psci";
        clocks = <&kryocc 0>;
        cpu-supply = <&pm8994_s11_saw>;
        operating-points-v2 = <&cluster0_opp>;
        #cooling-cells = <2>;
        next-level-cache = <&L2_0>;
        L2_0: l2-cache {
              compatible = "cache";
              cache-level = <2>;
        };
    };

    CPU1: cpu@1 {
        device_type = "cpu";
        compatible = "qcom,kryo";
        reg = <0x0 0x1>;
        enable-method = "psci";
        clocks = <&kryocc 0>;
        cpu-supply = <&pm8994_s11_saw>;
        operating-points-v2 = <&cluster0_opp>;
        #cooling-cells = <2>;
        next-level-cache = <&L2_0>;
    };

    CPU2: cpu@100 {
        device_type = "cpu";
        compatible = "qcom,kryo";
        reg = <0x0 0x100>;
        enable-method = "psci";
        clocks = <&kryocc 1>;
        cpu-supply = <&pm8994_s11_saw>;
        operating-points-v2 = <&cluster1_opp>;
        #cooling-cells = <2>;
        next-level-cache = <&L2_1>;
        L2_1: l2-cache {
              compatible = "cache";
              cache-level = <2>;
        };
    };

    CPU3: cpu@101 {
        device_type = "cpu";
        compatible = "qcom,kryo";
        reg = <0x0 0x101>;
        enable-method = "psci";
        clocks = <&kryocc 1>;
        cpu-supply = <&pm8994_s11_saw>;
        operating-points-v2 = <&cluster1_opp>;
        #cooling-cells = <2>;
        next-level-cache = <&L2_1>;
    };

    cpu-map {
        cluster0 {
            core0 {
                cpu = <&CPU0>;
            };

            core1 {
                cpu = <&CPU1>;
            };
        };

        cluster1 {
            core0 {
                cpu = <&CPU2>;
            };

            core1 {
                cpu = <&CPU3>;
            };
        };
    };
};

cluster0_opp: opp_table0 {
    compatible = "operating-points-v2-kryo-cpu";
    nvmem-cells = <&speedbin_efuse>;
    opp-shared;

    opp-307200000 {
        opp-hz = /bits/ 64 <307200000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x77>;
        clock-latency-ns = <200000>;
    };
    opp-384000000 {
        opp-hz = /bits/ 64 <384000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-422400000 {
        opp-hz = /bits/ 64 <422400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-460800000 {
        opp-hz = /bits/ 64 <460800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-480000000 {
        opp-hz = /bits/ 64 <480000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-537600000 {
        opp-hz = /bits/ 64 <537600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-556800000 {
        opp-hz = /bits/ 64 <556800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-614400000 {
        opp-hz = /bits/ 64 <614400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-652800000 {
        opp-hz = /bits/ 64 <652800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-691200000 {
        opp-hz = /bits/ 64 <691200000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-729600000 {
        opp-hz = /bits/ 64 <729600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-768000000 {
        opp-hz = /bits/ 64 <768000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-844800000 {
        opp-hz = /bits/ 64 <844800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x77>;
        clock-latency-ns = <200000>;
    };
    opp-902400000 {
        opp-hz = /bits/ 64 <902400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-960000000 {
        opp-hz = /bits/ 64 <960000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-979200000 {
        opp-hz = /bits/ 64 <979200000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1036800000 {
        opp-hz = /bits/ 64 <1036800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1056000000 {
        opp-hz = /bits/ 64 <1056000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1113600000 {
        opp-hz = /bits/ 64 <1113600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1132800000 {
        opp-hz = /bits/ 64 <1132800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1190400000 {
        opp-hz = /bits/ 64 <1190400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1209600000 {
        opp-hz = /bits/ 64 <1209600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1228800000 {
        opp-hz = /bits/ 64 <1228800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1286400000 {
        opp-hz = /bits/ 64 <1286400000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1324800000 {
        opp-hz = /bits/ 64 <1324800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x5>;
        clock-latency-ns = <200000>;
    };
    opp-1363200000 {
        opp-hz = /bits/ 64 <1363200000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x72>;
        clock-latency-ns = <200000>;
    };
    opp-1401600000 {
        opp-hz = /bits/ 64 <1401600000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x5>;
        clock-latency-ns = <200000>;
    };
    opp-1440000000 {
        opp-hz = /bits/ 64 <1440000000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1478400000 {
        opp-hz = /bits/ 64 <1478400000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x1>;
        clock-latency-ns = <200000>;
    };
    opp-1497600000 {
        opp-hz = /bits/ 64 <1497600000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x4>;
        clock-latency-ns = <200000>;
    };
    opp-1516800000 {
        opp-hz = /bits/ 64 <1516800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1593600000 {
        opp-hz = /bits/ 64 <1593600000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x71>;
        clock-latency-ns = <200000>;
    };
    opp-1996800000 {
        opp-hz = /bits/ 64 <1996800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x20>;
        clock-latency-ns = <200000>;
    };
    opp-2188800000 {
        opp-hz = /bits/ 64 <2188800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x10>;
        clock-latency-ns = <200000>;
    };
};

cluster1_opp: opp_table1 {
    compatible = "operating-points-v2-kryo-cpu";
    nvmem-cells = <&speedbin_efuse>;
    opp-shared;

    opp-307200000 {
        opp-hz = /bits/ 64 <307200000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x77>;
        clock-latency-ns = <200000>;
    };
    opp-384000000 {
        opp-hz = /bits/ 64 <384000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-403200000 {
        opp-hz = /bits/ 64 <403200000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-460800000 {
        opp-hz = /bits/ 64 <460800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-480000000 {
        opp-hz = /bits/ 64 <480000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-537600000 {
        opp-hz = /bits/ 64 <537600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-556800000 {
        opp-hz = /bits/ 64 <556800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-614400000 {
        opp-hz = /bits/ 64 <614400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-652800000 {
        opp-hz = /bits/ 64 <652800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-691200000 {
        opp-hz = /bits/ 64 <691200000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-729600000 {
        opp-hz = /bits/ 64 <729600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-748800000 {
        opp-hz = /bits/ 64 <748800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-806400000 {
        opp-hz = /bits/ 64 <806400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-825600000 {
        opp-hz = /bits/ 64 <825600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-883200000 {
        opp-hz = /bits/ 64 <883200000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-902400000 {
        opp-hz = /bits/ 64 <902400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-940800000 {
        opp-hz = /bits/ 64 <940800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-979200000 {
        opp-hz = /bits/ 64 <979200000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1036800000 {
        opp-hz = /bits/ 64 <1036800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1056000000 {
        opp-hz = /bits/ 64 <1056000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1113600000 {
        opp-hz = /bits/ 64 <1113600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1132800000 {
        opp-hz = /bits/ 64 <1132800000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1190400000 {
        opp-hz = /bits/ 64 <1190400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1209600000 {
        opp-hz = /bits/ 64 <1209600000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1248000000 {
        opp-hz = /bits/ 64 <1248000000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1286400000 {
        opp-hz = /bits/ 64 <1286400000>;
        opp-microvolt = <905000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1324800000 {
        opp-hz = /bits/ 64 <1324800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1363200000 {
        opp-hz = /bits/ 64 <1363200000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1401600000 {
        opp-hz = /bits/ 64 <1401600000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1440000000 {
        opp-hz = /bits/ 64 <1440000000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1478400000 {
        opp-hz = /bits/ 64 <1478400000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1516800000 {
        opp-hz = /bits/ 64 <1516800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1555200000 {
        opp-hz = /bits/ 64 <1555200000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1593600000 {
        opp-hz = /bits/ 64 <1593600000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1632000000 {
        opp-hz = /bits/ 64 <1632000000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1670400000 {
        opp-hz = /bits/ 64 <1670400000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1708800000 {
        opp-hz = /bits/ 64 <1708800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1747200000 {
        opp-hz = /bits/ 64 <1747200000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x70>;
        clock-latency-ns = <200000>;
    };
    opp-1785600000 {
        opp-hz = /bits/ 64 <1785600000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x7>;
        clock-latency-ns = <200000>;
    };
    opp-1804800000 {
        opp-hz = /bits/ 64 <1804800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x6>;
        clock-latency-ns = <200000>;
    };
    opp-1824000000 {
        opp-hz = /bits/ 64 <1824000000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x71>;
        clock-latency-ns = <200000>;
    };
    opp-1900800000 {
        opp-hz = /bits/ 64 <1900800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x74>;
        clock-latency-ns = <200000>;
    };
    opp-1920000000 {
        opp-hz = /bits/ 64 <1920000000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x1>;
        clock-latency-ns = <200000>;
    };
    opp-1977600000 {
        opp-hz = /bits/ 64 <1977600000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x30>;
        clock-latency-ns = <200000>;
    };
    opp-1996800000 {
        opp-hz = /bits/ 64 <1996800000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x1>;
        clock-latency-ns = <200000>;
    };
    opp-2054400000 {
        opp-hz = /bits/ 64 <2054400000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x30>;
        clock-latency-ns = <200000>;
    };
    opp-2073600000 {
        opp-hz = /bits/ 64 <2073600000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x1>;
        clock-latency-ns = <200000>;
    };
    opp-2150400000 {
        opp-hz = /bits/ 64 <2150400000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x31>;
        clock-latency-ns = <200000>;
    };
    opp-2246400000 {
        opp-hz = /bits/ 64 <2246400000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x10>;
        clock-latency-ns = <200000>;
    };
    opp-2342400000 {
        opp-hz = /bits/ 64 <2342400000>;
        opp-microvolt = <1140000 905000 1140000>;
        opp-supported-hw = <0x10>;
        clock-latency-ns = <200000>;
    };
};

….

reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
….
smem_mem: smem-mem@86000000 {
reg = <0x0 0x86000000 0x0 0x200000>;
no-map;
};
….
};

smem {
compatible = “qcom,smem”;
memory-region = <&smem_mem>;
hwlocks = <&tcsr_mutex 3>;
};

soc {
….
qfprom: qfprom@74000 {
compatible = “qcom,qfprom”;
reg = <0x00074000 0x8ff>;
#address-cells = <1>;
#size-cells = <1>;
….
speedbin_efuse: speedbin@133 {
reg = <0x133 0x1>;
bits = <5 3>;
};
};
};

oosTech by Sam Lee