Comment out disable_cache and enabe_cache in amd_early_mtrr_init you will get 5s speed up.
I checked old amd_early_mtrr.inc, it seems it only has enable cache, but no wbinvd.
Regards
YH
-----Original Message----- From: ebiederman@lnxi.com [mailto:ebiederman@lnxi.com] Sent: Wednesday, October 20, 2004 12:50 PM To: YhLu Cc: Li-Ta Lo; 'Ronald G. Minnich'; 'LinuxBIOS' Subject: Re: FYI: Merge in progress...
YhLu YhLu@tyan.com writes:
Why enable cache in amd_early_mtrr_init?
Usually that is a speed up. I think all I changed was using the C implementation. Previously the assembly was called from Config.lb.
That causes CPU sleep 5s again.
That is peculiar.
After get rid of that, the new auto.c stage still cost more 1s than the
code
two weeks ago.
Hmm.
This is certainly worth fixing. And it tends to explain why I have not yet seen the 5s speed up.
Eric