Offloading Touch Processing To A Graphics Processor
AssigneeIntel Corporation
InventorsBalaji Vembu, David I. Poisner, Arvind Kumar, Chaitanya R. Gandra
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Abstract
In an embodiment, a processor includes a graphics domain including a graphics engines each having at least one execution unit. The graphics domain is to schedule a touch application offloaded from a core domain to at least one of the plurality of graphics engines. The touch application is to execute responsive to an update to a doorbell location in a system memory coupled to the processor, where the doorbell location is written responsive to a user input to the touch input device. Other embodiments are described and claimed.
Claims20
A processor comprising:
- a core domain including at least one core to execute instructions;
- and
- a graphics domain including a plurality of graphics engines each having a thread dispatcher, at least one execution unit, a shared cache memory, and an interface, the graphics domain to schedule a touch application to perform processing of raw touch data, the touch application to execute one or more of the plurality of graphics engines responsive to an update to a doorbell location in a system memory coupled to the processor, the doorbell location written responsive to a user input to a touch input device.
A method comprising:
- receiving, in a sensor hub of a multicore processor, an indication of availability of raw touch data in a touch input device coupled to the sensor hub;
- storing, via the sensor hub, the raw touch data in a first shared data buffer of a system memory and writing a presence indicator to a first doorbell location;
- and
- responsive to the presence indicator in the first doorbell location, processing the raw touch data in a graphics processor of the multicore processor and storing processed touch data in a second shared data buffer.
A system comprising:
- a multicore processor including a core domain having a plurality of cores and a graphics domain having a plurality of graphics processors, the graphics domain to execute a touch application offloaded from the core domain to the graphics domain on a reset event of the system, the touch application to execute to process raw touch data of a user input responsive to the user input to a touch input device and without interaction with the core domain;
- a sensor hub coupled to the multicore processor to receive inputs from a plurality of sensors including the touch input device;
- the touch input device directly coupled to the sensor hub without a touch controller and to communicate the raw touch data of the user input to the sensor hub;
- and
- a system memory coupled to the multicore processor, the system memory including a first shared buffer to store the raw touch data and a second shared buffer to store processed touch data generated by the touch application from the raw touch data.
Dependencies are inferred from the claim text.