Aggressive Link Power Management

Matthew Garrett mjg59 at srcf.ucam.org
Sun Jan 15 23:52:11 UTC 2012


On Thu, Jan 12, 2012 at 11:35:23AM +0100, Colin Ian King wrote:

> 1. Try to identify controllers that incorrectly report ASPM capability
> (HOST_CAP_ALPM aka CAP.SALP, bit 26 of the Host Capabilities Register) and
> blacklist deviant devices. An example Errata is:
>  http://www.intel.com/content/dam/doc/specification-update/io-controller-hub-6-family-specification-update.pdf, page 28.

That erratum seems to just say that the bit should be flagged as R/WO 
rather than R/W. ALPM should be supported on all ich6 other than B1 
steppings.

-- 
Matthew Garrett | mjg59 at srcf.ucam.org




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