MTRR on P4

hcyun at hcyun at
Tue Oct 15 04:11:01 CEST 2002


I have problems in setting MTRR registers on our SIS645 based custom P4
More precisely my system hangs on set_fixed_mtrrs() function on mtrr.c 
Because I'm using recently updated cvs tree, that function already use
disable/enable cache but it doen't work for me. 

I investigated your configuration files of  supermicro p4dxx boards because
they are the only P4 boards in the cvs tree. 
And I found your comment about mtrr. You said that 
'Don't do generic MTRR setup, instead use values from the fixed_mtrr_values
So I saw the code and I found that fixed_mtrr_values array is defined but
never used anywhere. 

Can you tell me more about your comments and please suggest how can I pass
this problem if possible. 

Best regards, 

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