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35 .Nd "request a set of device-specific CPUs"
42 .Fa "device_t dev" "device_t child" "enum cpu_sets op" "size_t setsize"
43 .Fa "cpuset_t *cpuset"
47 .Fa "device_t dev" "enum cpu_sets op" "size_t setsize" "cpuset_t *cpuset"
52 method queries the parent bus device for a set of device-specific CPUs.
55 argument specifies which set of CPUs to retrieve.
57 the requested set of CPUs are returned in
61 argument specifies the size in bytes of the set passed in
65 supports querying different types of CPU sets via the
67 Not all set types are supported for every device.
68 If a set type is not supported,
72 These set types are supported:
73 .Bl -tag -width ".Dv LOCAL_CPUS"
75 The set of CPUs that are local to the device.
76 If a device is closer to a specific memory domain in a non-uniform memory
79 this will return the set of CPUs in that memory domain.
81 The preferred set of CPUs that this device should use for device interrupts.
82 This set type must be supported by all bus drivers.
87 function is a simple wrapper around
90 Zero is returned on success, otherwise an appropriate error is returned.
100 function first appeared in