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// SPDX-License-Identifier: GPL-2.0
/*
* Support for the configuration register space at port I/O locations
* 0x22 and 0x23 variously used by PC architectures, e.g. the MP Spec,
* Cyrix CPUs, numerous chipsets. As the space is indirectly addressed
* it may have to be protected with a spinlock, depending on the context.
*/
#include <linux/spinlock.h>
#include <asm/pc-conf-reg.h>
DEFINE_RAW_SPINLOCK(pc_conf_lock);