Update vendored files

Signed-off-by: Markus Lehtonen <markus.lehtonen@intel.com>

vendor/github.com/intel/goresctrl/pkg/utils/idset.go

@@ -129,7 +129,7 @@ func (s IDSet) String() string {
 
 // StringWithSeparator returns the set as a string, separated with the given separator.
 func (s IDSet) StringWithSeparator(args ...string) string {
-	if s == nil || len(s) == 0 {
+	if len(s) == 0 {
 		return ""
 	}
 

vendor/github.com/intel/goresctrl/pkg/utils/msr.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2021 Intel Corporation
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package utils
+
+import (
+	"encoding/binary"
+	"fmt"
+	"os"
+)
+
+func ReadMSR(cpu ID, msr int64) (uint64, error) {
+	str := fmt.Sprintf("/dev/cpu/%d/msr", cpu)
+
+	file, err := os.Open(str)
+	if err != nil {
+		return 0, err
+	}
+
+	defer file.Close()
+
+	// Whence is the point of reference for offset
+	// 0 = Beginning of file
+	// 1 = Current position
+	// 2 = End of file
+	var whence int = 0
+	_, err = file.Seek(msr, whence)
+	if err != nil {
+		return 0, err
+	}
+
+	data := make([]byte, 8)
+
+	_, err = file.Read(data)
+	if err != nil {
+		return 0, err
+	}
+
+	return binary.LittleEndian.Uint64(data), nil
+}

vendor/github.com/intel/goresctrl/pkg/utils/sysfs.go

@@ -0,0 +1,136 @@
+/*
+Copyright 2022 Intel Corporation
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package utils
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"strconv"
+	"strings"
+)
+
+const (
+	SysfsUncoreBasepath = "/sys/devices/system/cpu/intel_uncore_frequency/"
+)
+
+func setCPUFreqValue(cpu ID, setting string, value int) error {
+	path := fmt.Sprintf("/sys/devices/system/cpu/cpu%d/cpufreq/%s", cpu, setting)
+	return writeFileInt(path, value)
+}
+
+// GetCPUFreqValue returns information of the currently used CPU frequency
+func GetCPUFreqValue(cpu ID, setting string) (int, error) {
+	str := fmt.Sprintf("/sys/devices/system/cpu/cpu%d/cpufreq/%s", cpu, setting)
+
+	raw, err := ioutil.ReadFile(str)
+	if err != nil {
+		return 0, err
+	}
+
+	value, err := strconv.Atoi(strings.TrimSpace(string(raw)))
+	if err != nil {
+		return 0, err
+	}
+
+	return value, nil
+}
+
+// SetCPUScalingMinFreq sets the scaling_min_freq value of a given CPU
+func SetCPUScalingMinFreq(cpu ID, freq int) error {
+	return setCPUFreqValue(cpu, "scaling_min_freq", freq)
+}
+
+// SetCPUScalingMaxFreq sets the scaling_max_freq value of a given CPU
+func SetCPUScalingMaxFreq(cpu ID, freq int) error {
+	return setCPUFreqValue(cpu, "scaling_max_freq", freq)
+}
+
+// SetCPUsScalingMinFreq sets the scaling_min_freq value of a given set of CPUs
+func SetCPUsScalingMinFreq(cpus []ID, freq int) error {
+	for _, cpu := range cpus {
+		if err := SetCPUScalingMinFreq(cpu, freq); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// SetCPUsScalingMaxFreq sets the scaling_max_freq value of a given set of CPUs
+func SetCPUsScalingMaxFreq(cpus []ID, freq int) error {
+	for _, cpu := range cpus {
+		if err := SetCPUScalingMaxFreq(cpu, freq); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// UncoreFreqAvailable returns true if the uncore frequency control functions are available.
+func UncoreFreqAvailable() bool {
+	_, err := os.Stat(SysfsUncoreBasepath)
+	return err == nil
+}
+
+// SetUncoreMinFreq sets the minimum uncore frequency of a CPU die. Frequency is specified in kHz.
+func SetUncoreMinFreq(pkg, die ID, freqKhz int) error {
+	return setUncoreFreqValue(pkg, die, "min_freq_khz", freqKhz)
+}
+
+// SetUncoreMaxFreq sets the maximum uncore frequency of a CPU die. Frequency is specified in kHz.
+func SetUncoreMaxFreq(pkg, die ID, freqKhz int) error {
+	return setUncoreFreqValue(pkg, die, "max_freq_khz", freqKhz)
+}
+
+func uncoreFreqPath(pkg, die ID, attribute string) string {
+	return fmt.Sprintf(SysfsUncoreBasepath+"package_%02d_die_%02d/%s", pkg, die, attribute)
+}
+
+func getUncoreFreqValue(pkg, die ID, attribute string) (int, error) {
+	return readFileInt(uncoreFreqPath(pkg, die, attribute))
+}
+
+func setUncoreFreqValue(pkg, die ID, attribute string, value int) error {
+	// Bounds checking
+	if hwMinFreq, err := getUncoreFreqValue(pkg, die, "initial_min_freq_khz"); err != nil {
+		return err
+	} else if value < hwMinFreq {
+		value = hwMinFreq
+	}
+	if hwMaxFreq, err := getUncoreFreqValue(pkg, die, "initial_max_freq_khz"); err != nil {
+		return err
+	} else if value > hwMaxFreq {
+		value = hwMaxFreq
+	}
+
+	return writeFileInt(uncoreFreqPath(pkg, die, attribute), value)
+}
+
+func writeFileInt(path string, value int) error {
+	return ioutil.WriteFile(path, []byte(strconv.Itoa(value)), 0644)
+}
+
+func readFileInt(path string) (int, error) {
+	data, err := ioutil.ReadFile(path)
+	if err != nil {
+		return 0, err
+	}
+	i, err := strconv.ParseInt(strings.TrimSpace(string(data)), 10, 32)
+	return int(i), err
+}