Function report |
Source Code:arch\x86\kernel\apic\io_apic.c |
Create Date:2022-07-28 08:29:23 |
Last Modify:2020-03-16 21:24:45 | Copyright©Brick |
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Name:When we mask an IO APIC routing entry, we need to write the low* word first, in order to set the mask bit before we change the* high bits!
Proto:static void ioapic_mask_entry(int apic, int pin)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
int | apic | |
int | pin |
361 | union entry_union eu = { 0: enabled, 1: disabled = IOAPIC_MASKED} |
363 | raw_spin_lock_irqsave( & ioapic_lock, flags) |
364 | io_apic_write(apic, 0x10 + 2 * pin, w1) |
365 | io_apic_write(apic, 0x11 + 2 * pin, w2) |
366 | raw_spin_unlock_irqrestore( & ioapic_lock, flags) |
Name | Describe |
---|---|
clear_IO_APIC_pin | |
mp_irqdomain_deactivate |
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