23 lines
828 B
Plaintext
23 lines
828 B
Plaintext
* IBM Powerpc Virtual Accelerator Switchboard (VAS)
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VAS is a hardware mechanism that allows kernel subsystems and user processes
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to directly submit compression and other requests to Nest accelerators (NX)
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or other coprocessors functions.
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Required properties:
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- compatible : should be "ibm,vas".
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- ibm,vas-id : A unique identifier for each instance of VAS in the system
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- reg : Should contain 4 pairs of 64-bit fields specifying the Hypervisor
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window context start and length, OS/User window context start and length,
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"Paste address" start and length, "Paste window id" start bit and number
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of bits)
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Example:
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vas@6019100000000 {
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compatible = "ibm,vas", "ibm,power9-vas";
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reg = <0x6019100000000 0x2000000 0x6019000000000 0x100000000 0x8000000000000 0x100000000 0x20 0x10>;
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name = "vas";
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ibm,vas-id = <0x1>;
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};
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