函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:arch\x86\kernel\early-quirks.c Create Date:2022-07-27 09:20:58
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：fix_hypertransport_config

函数原型：static void __init fix_hypertransport_config(int num, int slot, int func)

返回类型：void

参数：

类型参数名称
intnum
intslot
intfunc
40  htcfg等于Direct PCI access. This is used for PCI accesses in early boot beforethe PCI subsystem works.
41  如果htcfg按位与1左移18位则
42  printk(formational "Detected use of extended apic ids on hypertransport bus\n")
44  如果htcfg按位与1左移17位的值恒等于0则
45  printk(formational "Enabling hypertransport extended apic interrupt broadcast\n")
47  printk(formational "Note this is a bios bug, please contact your hw vendor\n")
49  htcfg或等于1左移17位
50  write_pci_config(num, slot, func, 0x68, htcfg)