On Tue, 11 Oct 2016, Bin Gao wrote: > On Fri, Aug 26, 2016 at 12:14:58PM +0200, Thomas Gleixner wrote: > > The Linux kernel does think a reliable calibration implies the reliability > (i.e. > no watchdog required). I'm posting some code pieces to explain.
I know that and I know exactly how all that works. And I certainly did not ask for an explanation of the current state of affairs. Here is what I wrote: > > Second thoughts. We should seperate the calibration aspect from the > > reliablity > > aspect. > > > > If a MSR/CPUID readout provides reliable calibration then this does not tell > > us about the reliablity (i.e. no watchdog required). So having two flags for > > this - and sure you can set both on those SoCs is the proper solution. In other words: I want to have two seperate flags: 1) FEATURE_KNOWN_FREQUENCY - Grab the frequency from CPUID/MSR or whatever and skip the whole calibration thing 2) FEATURE_RELIABLE - Do not invoke the watchdog Thanks, tglx