函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\matrix.c Create Date:2022-07-27 11:17:27
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：q_matrix_free - Free allocated interrupt in the matrix*@m: Matrix pointer*@cpu: Which CPU map needs be updated*@bit: The bit to remove*@managed: If true, the interrupt is managed and not accounted* as available.

函数原型：void irq_matrix_free(struct irq_matrix *m, unsigned int cpu, unsigned int bit, bool managed)

返回类型：void

参数：

类型参数名称
struct irq_matrix *m
unsigned intcpu
unsigned intbit
boolmanaged
414  cm等于per_cpu_ptr(maps, cpu)
416  如果WARN_ON_ONCE(bit < alloc_start || bit >= alloc_end)则返回
419  lear_bit - Clears a bit in memory*@nr: Bit to clear*@addr: Address to start counting from* This is a relaxed atomic operation (no implied memory barriers).
420  allocated自减
421  如果managed则managed_allocated自减
424  如果online则total_allocated自减
427  如果非managed则
428  available自加
429  如果online则global_available自加
432  trace_irq_matrix_free(bit, cpu, m, cm)
调用者
名称描述
clear_irq_vector
apic_update_vector