函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\apic\x2apic_uv_x.c Create Date:2022-07-27 09:32:44
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:uv_early_read_mmr

函数原型:static unsigned long __init uv_early_read_mmr(unsigned long addr)

返回类型:unsigned long

参数:

类型参数名称
unsigned longaddr
79  mmr等于early_ioremap(s_uv4_hub | addr, mmr的长度)
80  val等于mmr
81  early_iounmap(mmr, mmr的长度)
83  返回:val
调用者
名称描述
early_get_pnodeid
uv_tsc_check_sync
early_get_apic_socketid_shift
uv_set_apicid_hibitAdd an extra bit as dictated by bios to the destination apicid of* interrupts potentially passing through the UV HUB. This prevents* a deadlock between interrupts and IO port operations.