Re: [PATCH] Longhaul - Use information from Longhaul

[Dave Jones <davej@redhat.com>]

On Sun, Jul 09, 2006 at 10:08:42PM +0200, Rafał Bilski wrote:
 > [...] 
 > >  > Longhaul don't report minimum multiplier. It reports minimum frequency.
 > >  > So not always minimum multiplier at minimum FSB is really minimum.
 > > 
 > > I don't follow your logic.  How can lowest mult * lowest fsb not be
 > > lowest frequency ?  The MSRs most definitly only report the multipliers.
 > 
 > I don't know how to explain this properly in English. I will use example.
 > This is from my Nehemiah:
 > min f = 433MHz = 6.5 * 66MHz
 > max f = 999MHz = 7.5 * 133MHz
 > but this is Nehemiah "C" and it is working downto 4.0 multiplier.
 > 
 > This is Ezra that I have found in Google (output from Your program):
 > min f = 300MHz = 3.0 * 100MHz
 > max f = 864MHz = 6.5 * 133MHz

But this is only true IFF we scale the FSB, which we don't.
The above scenarios will not happen for as long as that is true.

 > I'm trying to be more compatible with information from Longhaul MSR. Even if 
 > this register is broken for my CPU, using min frequency insteed of min 
 > multiplier is fixing this.

when you say 'min frequency', which MSR bits are you talking about?

		Dave

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