Bug 3403 - x86/acpi/cstate: Optimize ARB_DISABLE on Centaur CPUs
Summary: x86/acpi/cstate: Optimize ARB_DISABLE on Centaur CPUs
Status: NEW
Alias: None
Product: ANCK 5.10 Dev
Classification: ANCK
Component: X86 (show other bugs) X86
Version: unspecified
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: Guanjun
QA Contact: shuming
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Reported: 2022-12-09 14:18 UTC by LeoLiu-oc
Modified: 2022-12-09 14:18 UTC (History)
2 users (show)

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Description LeoLiu-oc zhaoxin_group 2022-12-09 14:18:20 UTC 
Description of problem:
On all recent Centaur platforms, ARB_DISABLE is handled by PMU
automatically while entering C3 type state. No need for OS to issue the
ARB_DISABLE, so set bm_control to zero to indicate that.

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