Fix incorrect power/idle state for offlined CPUs for SRF/CWF · Pull Request !5690 · anolis/cloud-kernel

bugzilla: https://bugzilla.openanolis.cn/show_bug.cgi?id=24109

SRF/CWF uses mwait 0x22/0x23 for C6. When cpu is offlined, mwait_play_dead_cpuid_hint() decodes mwait hints from cpuid.5, which is wrong, and this blocks the whole system from entering Package C6.
Backport upstream solution for this bug.

Tested on SRF.
Without this PR, when system is idle, it exits from PC6 as soon as we offline any of the CPU, till we online back the CPU.
With this PR, when system is idle, it always stays in PC6 even if we offline some cpus.

1. Reapply "x86/smp: Eliminate mwait_play_dead_cpuid_hint()"
2. ACPI: processor: Rescan "dead" SMT siblings during initialization
3. intel_idle: Rescan "dead" SMT siblings during initialization
4. x86/smp: PM/hibernate: Split arch_resume_nosmt()
5. intel_idle: Use subsys_initcall_sync() for initialization
6. cpuidle: Change :enter_dead() driver callback return type to void
7. cpuidle: Do not return from cpuidle_play_dead() on callback failures
8. Revert "x86/smp: Eliminate mwait_play_dead_cpuid_hint()"
9. x86/smp: Fix mwait_play_dead() and acpi_processor_ffh_play_dead() noreturn behavior
10. ACPI/processor_idle: Export acpi_processor_ffh_play_dead()
11. x86/smp: Eliminate mwait_play_dead_cpuid_hint()
12. intel_idle: Provide the default enter_dead() handler
13. ACPI: processor_idle: Add FFH state handling
14. x86/smp: Allow calling mwait_play_dead with an arbitrary hint

类型	指派人员	状态
审查	Guanjun xunlei 半叶枫尘 Artie Ding winterddd xueshuai 冯光辉 Guixin Liu health_jay kun-llfl MinLi Xuchun Shang	已完成 (0/0人)
测试	小龙	进行中 (0/1人)

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