[PATCH v3 1/5] x86: Add cpu capability flag X86_FEATURE_NONSTOP_TSC_S3

2013-03-05 Thread Feng Tang
On some new Intel Atom processors (Penwell and Cloverview), there is a feature that the TSC won't stop in S3 state, say the TSC value won't be reset to 0 after resume. This feature makes TSC a more reliable clocksource and could benefit the timekeeping code during system suspend/resume cycle, so

[PATCH v3 1/5] x86: Add cpu capability flag X86_FEATURE_NONSTOP_TSC_S3

2013-03-05 Thread Feng Tang
On some new Intel Atom processors (Penwell and Cloverview), there is a feature that the TSC won't stop in S3 state, say the TSC value won't be reset to 0 after resume. This feature makes TSC a more reliable clocksource and could benefit the timekeeping code during system suspend/resume cycle, so