tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Support for the configuration register space at port I/O locations
4 * 0x22 and 0x23 variously used by PC architectures, e.g. the MP Spec,
5 * Cyrix CPUs, numerous chipsets. As the space is indirectly addressed
6 * it may have to be protected with a spinlock, depending on the context.
7 */
8
9#include <linux/spinlock.h>
10
11#include <asm/pc-conf-reg.h>
12
13DEFINE_RAW_SPINLOCK(pc_conf_lock);