Abstract: A system and method for communicating over a single virtual channel. The method includes reserving a first group of credits of a credit pool for a first traffic class and a second group of credits of the credit pool for a second traffic class. In addition, a first and second respective groups of tags are reserved from a tag pool for the first and second traffic class. A packet may then be selected from a first buffer for transmission over the virtual channel. The packet may include a traffic indicator of the first traffic class operable to allow the packet to pass a packet of the second traffic class from a second buffer. The method further includes sending the packet over the virtual channel and adjusting the first group of credits and the first group of tags based on having sent a packet of the first traffic class.

Abstract: A system and method for communicating over a single virtual channel. The method includes reserving a first group of credits of a credit pool for a first traffic class and a second group of credits of the credit pool for a second traffic class. In addition, a first and second respective groups of tags are reserved from a tag pool for the first and second traffic class. A packet may then be selected from a first buffer for transmission over the virtual channel. The packet may include a traffic indicator of the first traffic class operable to allow the packet to pass a packet of the second traffic class from a second buffer. The method further includes sending the packet over the virtual channel and adjusting the first group of credits and the first group of tags based on having sent a packet of the first traffic class.

Abstract: Systems and methods for protecting display presentation information are presented. In one embodiment, graphics processing method includes receiving presentation information; performing an unauthorized display protection process; and forwarding result of the alteration in the presentation information. In one exemplary implementation the unauthorized display protection process introduces a characteristic in the graphics data signal that is compatible with an authorized display (e.g., trusted display, internal display, etc.) while distorting the graphics data signal in a manner that is not compatible with accurate presentation by an unauthorized display (e.g., untrusted display, external display, etc.). It is appreciated that a variety of characteristics that can be introduced or altered in the presentation information signal. In one embodiment, alterations are made to standard control signals (e.g., stuffing begin/end indications, blank start/end indications, reset indicators, etc.