On Wed, Dec 22, 2010 at 09:22:06PM +0530, Luis R. Rodriguez wrote: > On Wed, Dec 22, 2010 at 10:44 AM, Senthil Balasubramanian > <[email protected]> wrote: > > There are few places where we are checking for macversion and revsions > > before RTC is powered ON. However we are reading the macversion and > > revisions only after RTC is powered ON and so both macversion and > > revisions are actully zero and this leads to incorrect srev checks > > > > Incorrect srev checks can cause registers to be configured wrongly and can > > cause unexpected behavior. Fixing this seems to address the ASPM issue that > > we have observed. The laptop becomes very slow and hangs mostly with ASPM L1 > > enabled without this fix. > > On what chipset? Or did we see this on one chipset and suspect it can > affect others? We have noticed on Merlin and it is obviously incorrect for other chipsets also :-(. Please feel free to rephrase/rework on this patch if you think something is still lacking/missing... > > Luis
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