Host1x Engine Node

Device Tree Node node, which contains properties to configure a Host1x client engine allocated to the Guest OS.

vic@8188050000 {
                compatible = "nvidia,tegra264-host1x-virtual-engine";
                status = "okay";
iommus = <0x05 0x3000>;

                nvidia,class = <0x5D>;
                nvidia,module-id = <2>;

            };

Properties

This section lists the properties used across different platform configurations.

Compatibility String “compatible”

Description	String specifying the compatibility of the Host1x Engine Entry
Customizable	No
Type	String
Unit	N/A
Optional	No
Resolution	N/A
MaxValue	N/A
MinValue	N/A
Recommended	“nvidia,tegra264-host1x-virtual-engine”

Engine StreamId “iommus”

Description	StreamId associated with the Host1x engine per hardware specification.
Customizable	No
Type	<SMMUinstance, Stream Id>
Unit	N/A
Optional	No
Resolution	N/A
MaxValue	N/A
MinValue	N/A
Recommended	Based on the platform configuration

Host1x Engine Status Flag “status”

Description	Flag specifying whether a specific Host1x engine is enabled.
Customizable	Yes
Type	String
Unit	N/A
Optional	No
Resolution	N/A
MaxValue	“disabled”
MinValue	“okay”
Recommended	“okay”

Host1x Engine Class “nvidia,class”

Description	Class id ofHost1x engine
Customizable	No
Type	Unsigned Integer
Unit	N/A
Optional	No
Resolution	N/A
MaxValue	N/A
MinValue	N/A
Recommended	Based on the Engine. Ex: 0x5D for VIC

Host1x Engine Module Id “nvidia,module-id”

Description	Module id ofHost1x engine
Customizable	No
Type	Unsigned Integer
Unit	N/A
Optional	No
Resolution	N/A
MaxValue	N/A
MinValue	N/A
Recommended	Based on the Engine. Ex: 0x2 for VIC