Work Queue Capabilities (WQCAP) – Offset 20 - 001 - ID:872351 | Intel® Core™ Ultra Series 3 Processors CFG and MEM Registers

Intel® Core™ Ultra Series 3 Processors CFG and MEM Registers

ID	Date	Version	Classification
872351	04/14/2026	001	Public

Work Queue Capabilities (WQCAP) – Offset 20

Work Queue Capabilities

Bit Range	Default	Access	Field Name and Description
63:56	0h	RO	Reserved
55	0h	RO/V	Work Queue PRS Support (WQPRS) 0: The WQ PRS Disable control is not supported. 1: The WQ PRS Disable control may be used to control the use of PRS independently for each WQ.
54	1h	RO/V	Work Queue Operations Configuration Support (WQOPCFGSUPP) 0: Configuration of per WQ operations is not supported. The OPCFG fields in WQCFG are reserved. All WQs support the operations specified in the OPCAP register. 1: Configuration of per WQ operations is supported. The OPCFG fields in WQCFG may be used to limit the operations allowed in each WQ.
53	1h	RO/V	Work Queue Occupancy Interrupt Support (OCCINT) 0: WQ occupancy interrupts are not supported. The WQ Occupancy Limit and WQ Occupancy Interrupt Enable fields in WQCFG are reserved. 1: WQ occupancy interrupts are supported as described in #341204 section 9.2.24.
52	1h	RO/V	Work Queue Occupancy Support (OCCUPANCY) 0: The value of the WQ Occupancy field in WQCFG is undefined. 1: The WQ Occupancy field in WQCFG contains the current occupancy of the WQ.
51	1h	RO/V	Work Queue Priority Support (PRIOR) 0: WQ priorities are not supported. The WQ Priority field in WQ configuration is ignored. 1: WQ priorities are supported as described in #341204 section 4.1.
50	0h	RO/V	Work Queue ATS Support (WQATS) 0: ATS is used for all WQs according to the setting of the Enable field in the PCIe ATS capability. 1: The WQ ATS Disable control may be used to control the use of ATS independently for each WQ.
49	1h	RO/V	Dedicated Mode Supported (DEDICATED) 0: Dedicated mode is not supported. All WQs must be configured in shared mode. 1: Dedicated mode is supported.
48	1h	RO/V	Shared Mode Supported (SHARED) 0: Shared mode is not supported. All WQs must be configured in dedicated mode. 1: Shared mode is supported.
47:28	0h	RO	Reserved
27:24	1h	RO/V	WQCFG Size (WQCFGSIZE) Indicates the size of the WQCFG register for each WQ. The size of each WQCFG register is 2N+5 bytes, where N is the value in this field.
23:16	8h	RO/V	Number of WQs (NUMWQ) Number of WQs
15:0	40h	RO/V	Total WQ Size (TOTWQSZ) The total amount of work queue space in the device, which may vary in different implementations. Software uses the WQCFG registers to apportion this space among the WQs, to support multiple QoS levels and/or multiple dedicated work queues.