Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\affinity.c Create Date:2022-07-28 10:15:47
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Name:irq_spread_init_one

Proto:static void irq_spread_init_one(struct cpumask *irqmsk, struct cpumask *nmsk, unsigned int cpus_per_vec)

Type:void

Parameter:

TypeParameterName
struct cpumask *irqmsk
struct cpumask *nmsk
unsigned intcpus_per_vec
18  When cpus_per_vec > 0 cycle
19  cpu = Uniprocessor. Assume all masks are "1".
22  If cpu >= nr_cpu_ids Then Return
25  pumask_clear_cpu - clear a cpu in a cpumask*@cpu: cpu number (< nr_cpu_ids)*@dstp: the cpumask pointer
26  pumask_set_cpu - set a cpu in a cpumask*@cpu: cpu number (< nr_cpu_ids)*@dstp: the cpumask pointer
27  cpus_per_vec--
30  siblmsk = topology_sibling_cpumask(cpu)
31  When cpus_per_vec > 0 cycle
32  sibl = pumask_next - get the next cpu in a cpumask*@n: the cpu prior to the place to search (ie. return will be > @n)*@srcp: the cpumask pointer* Returns >= nr_cpu_ids if no further cpus set.
33  If sibl >= nr_cpu_ids Then Break
35  If Not pumask_test_and_clear_cpu - atomically test and clear a cpu in a cpumask*@cpu: cpu number (< nr_cpu_ids)*@cpumask: the cpumask pointer* Returns 1 if @cpu is set in old bitmap of @cpumask, else returns 0* test_and_clear_bit wrapper for cpumasks. Then Continue
37  pumask_set_cpu - set a cpu in a cpumask*@cpu: cpu number (< nr_cpu_ids)*@dstp: the cpumask pointer
38  cpus_per_vec--
Caller
NameDescribe
__irq_build_affinity_masks