Function report |
Source Code:kernel\power\energy_model.c |
Create Date:2022-07-28 10:04:47 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:m_register_perf_domain() - Register the Energy Model of a performance domain*@span : Mask of CPUs in the performance domain*@nr_states : Number of capacity states to register*@cb : Callback functions providing the data of the Energy Model* Create Energy
Proto:int em_register_perf_domain(cpumask_t *span, unsigned int nr_states, struct em_data_callback *cb)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
cpumask_t * | span | |
unsigned int | nr_states | |
struct em_data_callback * | cb |
202 | prev_cap = 0 |
204 | ret = 0 |
213 | mutex_lock( & Mutex serializing the registrations of performance domains and letting* callbacks defined by drivers sleep.) |
226 | cap = arch_scale_cpu_capacity(cpu) |
228 | pr_err("CPUs of %*pbl must have the same capacity\n", cpumask_pr_args - printf args to output a cpumask*@maskp: cpumask to be printed* Can be used to provide arguments for '%*pb[l]' when printing a cpumask.(span)) |
231 | Go to unlock |
237 | pd = em_create_pd(span, nr_states, cb) |
238 | If Not pd Then |
240 | Go to unlock |
253 | unlock : |
256 | Return ret |
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