CPufreq采用了机制与策略分离的设计架构,分为三个模块:cpufreq core、cpufreq drivers、cpufreq governors。其中,cpufreq drivers位于cpufreq core的底层,用于设置具体cpu硬件的频率,通过cpufreq driver可以使cpu频率得到调整。 cpufreq driver机制借助Linux Cpufreq标准子系统中的cpufreq_driver结构体,完成cpu调频驱动的...
综上所述,“no or unknown cpufreq driver”错误通常与CPU频率调节功能的驱动有关。解决此问题可能需要检查驱动的安装状态、寻找并安装合适的驱动,或确保驱动与当前系统兼容。如果问题依然存在,建议查阅相关的系统日志或联系硬件制造商获取更多帮助。
然后arm big little cpufreq driver出场了,其init接口位于“drivers/cpufreq/arm_big_little_dt.c”中,如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 1:staticintgeneric_bL_probe(struct platform_device*pdev)2:{3:struct device_node*np;4:5:np=get_cpu_node_with_valid_op(0);6:if(!np...
Getting below errors while loading ACPI CPUfreq driver Raw # modprobe acpi_freq modprobe: FATAL: Module acpi_freq not found. Raw # modprobe acpi-cpufreq FATAL: Error inserting acpi_cpufreq (/lib/modules/2.6.32-220.13.1.el6.x86_64/kernel/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.ko): No...
If I enable the turbo-boost in BIOS, it seems that cpufreq driver cannot control cpu1's frequency very accurately. Then, I looked into the code in intel_pstate.c and found it used the function of "HWP". Now I have several questions that confuse me a lot and ho...
static struct cpufreq_driver amd_pstate_driver; static int cppc_load __initdata; static inline int pstate_enable(bool enable) { @@ -626,6 +622,15 @@ static int __init amd_pstate_init(void) if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) return -ENODEV; /* * by default the...
cpufreq ドライバーは非アクティブです。 BIOS で電源管理プロファイルを Performance に設定して cpupower frequency-info を実行すると、"no or unknown cpufreq driver is active on this CPU" が表示されます。 Environment Red Hat Enterprise Linux Dell PowerEdge サーバー HPE ProLiant サーバー ...
cpupower frequency-set -g performance 运行cpupowe命令检查,发现CPU的驱动为acpi-cpufreq,能够正常睿频的节点为intel_pstate。 异常节点运行命令:cpupower frequency-info analyzing CPU 0: driver: acpi-cpufreqCPUs which run at the same hardware frequency: 0 ...
Most of the ARM platforms used cpufreq-dt driver irrespective of whether it's big-little(HMP) or SMP system. This arm_big_little_dt is not used actively at all. So let's remove the driver, so that it need not be maintained. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Acked...
Enable the "cpufreq" driver under "Power Management" in the Linux kernel configuration. Choose your CPU from the list of drivers Choose a "cpu frequency governor" that tells the kernel when to change frequency. Recompile and boot Go to /sys/devices/system/cpu/cpu0/cpufreq and try the va...