[Bug 222146] New: 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference

[Bug 222146] New: 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=222146

            Bug ID: 222146
           Summary: 6.18: AMD (Ryzen 5): cannot select existing
                    energy_performance_preference
           Product: Power Management
           Version: 2.5
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P3
         Component: cpufreq
          Assignee: linux-pm@vger.kernel.org
          Reporter: steffen@sdaoden.eu
        Regression: No

Hello!  I sail 6.18.newest and since some weeks (possibly: since "custom",
whatever this is, is listed) my self-knitted "cpupower" shell script fails like
so:

  /root/bin/cpupower.sh: 1: echo: echo: I/O error
  ERR:CPU 0: write for energy_performance_preference=balance_performance failed

Ie it cannot set that even though it is reported to exist (the script refetches
what is available after settings are changed):

  CPU 0: freq: 406477-3201000; scaling: 406477-3201000; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)

On the terminal:

  #?0|lecce:~# cat
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_available_preferences
  default performance balance_performance balance_power power custom
  #?0|lecce:~# echo balance_performance >
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference
  -su: echo: write error: Device or resource busy
  #?1|lecce:~# cat
/sys/devices/system/cpu/cpu0/cpufreq/energy_performance_preference
  performance

It works when i switch to all-performance, when i build, for example:

  CPU 0: freq: 406477-4979334; scaling: 406477-4979334; boost:1; gov:
performance (performance powersave); energy: performance (performance)

And it worked everwhere just smoothly before.

Thanks again, a lot.  I love it!

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[Bug 222146] 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=222146

Artem S. Tashkinov (aros@gmx.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INSUFFICIENT_DATA

--- Comment #1 from Artem S. Tashkinov (aros@gmx.com) ---
This kernel is not supported.

Please try 7.2.11.

If the issue is still reproducible, provide your full CPU identification
string.

Ryzen 5 covers multiple generations of CPUs.

lscpu output will suffice.

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[Bug 222146] 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=222146

--- Comment #2 from Steffen Nurpmeso (steffen@sdaoden.eu) ---
(for your possible interest)

What do you mean by "kernel not supported"?  I use the latest LTS, just like
AlpineLinux.  And it all worked until a few versions back?

(I mean, it is not something "terrible", i just thought i report the problem,
because it is a "detoriation of state" that lasts for now several kernel
updates.)

lscpu nonetheless and in short is

Vendor ID:                   AuthenticAMD
  Model name:                AMD Ryzen 5 220 w/ Radeon 740M Graphics
    CPU family:              25
    Model:                   124
    Thread(s) per core:      1
    Core(s) per socket:      6
    Socket(s):               1
    Stepping:                0
    Microcode version:       0xa70c00a
    Frequency boost:         enabled
    CPU(s) scaling MHz:      39%
    CPU max MHz:             3201.0000
    CPU min MHz:             406.4770

CPU(s):                      12
  On-line CPU(s) list:       0-10:2
  Off-line CPU(s) list:      1-11:2


# bin/cpupower.sh
CPU 0: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 2: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 4: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 6: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 8: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
CPU 10: freq: 406477-3201000; scaling: 406477-640200; boost:0; gov: powersave
(performance powersave); energy: performance (default performance
balance_performance balance_power power custom)
P-


(energy "should" be "power" in this state, and was until a few weeks ago.)

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[Bug 222146] 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=222146

--- Comment #3 from Steffen Nurpmeso (steffen@sdaoden.eu) ---
merde, of course you can have full lscpu or whatever you want!!
Thanks, indeed.
(I was only sad because of that AMD "territorial pissing" as via
  lid_exists() {
        if [ -z "$LID" ]; then
                # Documentation/firmware-guide/acpi/acpi-lid.rst
                LID=/proc/acpi/button/lid/LID0/state
                [ -f "$LID" ] && return 0
                # amd ryzen 5 220, linux 6.18
                LID=/proc/acpi/button/lid/LID/state
                [ -f "$LID" ] && return 0
                LID=.
        fi
        [ "$LID" != . ]
  }
Cool that really someone deals with bugzilla!!!)


Architecture:                x86_64
  CPU op-mode(s):            32-bit, 64-bit
  Address sizes:             48 bits physical, 48 bits virtual
  Byte Order:                Little Endian
CPU(s):                      12
  On-line CPU(s) list:       0-10:2
  Off-line CPU(s) list:      1-11:2
Vendor ID:                   AuthenticAMD
  Model name:                AMD Ryzen 5 220 w/ Radeon 740M Graphics
    CPU family:              25
    Model:                   124
    Thread(s) per core:      1
    Core(s) per socket:      6
    Socket(s):               1
    Stepping:                0
    Microcode version:       0xa70c00a
    Frequency boost:         enabled
    CPU(s) scaling MHz:      39%
    CPU max MHz:             3201.0000
    CPU min MHz:             406.4770
    BogoMIPS:                6390.28
    Flags:                   fpu vme de pse tsc msr pae mce cx8 apic sep mtrr
pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt
pdpe1gb rdtscp lm constant_tsc rep
                             _good amd_lbr_v2 nopl xtopology nonstop_tsc cpuid
extd_apicid aperfmperf rapl pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2
x2apic movbe popcnt aes xsave avx
                              f16c rdrand lahf_lm cmp_legacy svm extapic
cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext
perfctr_core perfctr_nb bpext perfctr_l
                             lc mwaitx cpuid_fault cpb cat_l3 cdp_l3 hw_pstate
ssbd mba perfmon_v2 ibrs ibpb stibp ibrs_enhanced vmmcall fsgsbase bmi1 avx2
smep bmi2 erms invpcid cqm rdt_a av
                             x512f avx512dq rdseed adx smap avx512ifma
clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1
xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm
                             _mbm_local avx512_bf16 clzero irperf xsaveerptr
rdpru wbnoinvd cppc arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean
flushbyasid decodeassists pausefilter pf
                             threshold vgif x2avic v_spec_ctrl vnmi avx512vbmi
umip pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg
avx512_vpopcntdq rdpid overflow_recov
                              succor smca fsrm flush_l1d amd_lbr_pmc_freeze
Virtualization features:
  Virtualization:            AMD-V
Caches (sum of all):
  L1d:                       192 KiB (6 instances)
  L1i:                       192 KiB (6 instances)
  L2:                        6 MiB (6 instances)
  L3:                        16 MiB (1 instance)
NUMA:
  NUMA node(s):              1
  NUMA node0 CPU(s):         0-10:2
Vulnerabilities:
  Gather data sampling:      Not affected
  Ghostwrite:                Not affected
  Indirect target selection: Not affected
  Itlb multihit:             Not affected
  L1tf:                      Not affected
  Mds:                       Not affected
  Meltdown:                  Not affected
  Mmio stale data:           Not affected
  Old microcode:             Not affected
  Reg file data sampling:    Not affected
  Retbleed:                  Not affected
  Spec rstack overflow:      Vulnerable
  Spec store bypass:         Mitigation; Speculative Store Bypass disabled via
prctl
  Spectre v1:                Mitigation; usercopy/swapgs barriers and __user
pointer sanitization
  Spectre v2:                Mitigation; Enhanced / Automatic IBRS; IBPB
conditional; STIBP always-on; PBRSB-eIBRS Not affected; BHI Not affected
  Srbds:                     Not affected
  Tsa:                       Mitigation; Clear CPU buffers
  Tsx async abort:           Not affected
  Vmscape:                   Mitigation; IBPB before exit to userspace

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[Bug 222146] 6.18: AMD (Ryzen 5): cannot select existing energy_performance_preference

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=222146

--- Comment #4 from Artem S. Tashkinov (aros@gmx.com) ---
Wait, have you tested 7.2.11 or 7.3?

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