AMD HYPERTRANSPORT 8151 - Manual (Page 8)

8 Product Errata
25912 Rev. 3.06 March 2006 AMD-8151™ HyperTransport™ AGP3.0 Graphics Tunnel
Revision Guide
22 Incorrect Value For DevA:0xA4[Host translation#]
Description
DevA:0xA4[Host translation#] is a read-only bit, fixed in the high state in the graphics tunnel. Per the
AGP specification, this indicates that core logic does not translate host transactions addressed to the
Graphics Aperature through the GART. However, on AMD platforms that use the graphics tunnel,
such host transactions can be translated through the GART.
Potential Effect on System
None.
Suggested Workaround
Software should presume that this bit is low for the graphics tunnel.
Fix Planned
Yes