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pm: cpupower: bindings: Improve disable c_state block

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This commit fixes a bad comment, removes an unneeded code block, and
catches a few more states that cpuidle_state_disable with the test
script. Part of the motivation for this commit was I kept forgetting to
use sudo.

Signed-off-by: "John B. Wyatt IV" <jwyatt@redhat.com>
Signed-off-by: "John B. Wyatt IV" <sageofredondo@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This commit is contained in:
John B. Wyatt IV 2024-09-30 19:21:54 -04:00 committed by Shuah Khan
parent 08a26a15a4
commit 2314dca1b3
1 changed files with 6 additions and 6 deletions
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12
tools/power/cpupower/bindings/python/test_raw_pylibcpupower.py
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@ -15,21 +15,21 @@ else:
print(f"cstate count error: return code: {cpu_cstates_count}")
"""
Disable cstate (will fail if the above is 0, ex: a virtual machine)
Disable cstate (will fail if the above returns is under 1, ex: a virtual machine)
"""
cstate_disabled = p.cpuidle_state_disable(0, 0, 1)
if cpu_cstates_count == 0:
print(f"CPU 0 has {cpu_cstates_count} c-states")
else:
print(f"cstate count error: return code: {cpu_cstates_count}")
match cstate_disabled:
case 0:
print(f"CPU state disabled")
case -1:
print(f"Idlestate not available")
case -2:
print(f"Disabling is not supported by the kernel")
case -3:
print(f"No write access to disable/enable C-states: try using sudo")
case _:
print(f"Not documented")
print(f"Not documented: {cstate_disabled}")
# Pointer example