1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_SHARED_IO_H
3#define _ASM_X86_SHARED_IO_H
4
5#include <linux/types.h>
6
7#define BUILDIO(bwl, bw, type) \
8static __always_inline void __out##bwl(type value, u16 port) \
9{ \
10 asm volatile("out" #bwl " %" #bw "0, %w1" \
11 : : "a"(value), "Nd"(port)); \
12} \
13 \
14static __always_inline type __in##bwl(u16 port) \
15{ \
16 type value; \
17 asm volatile("in" #bwl " %w1, %" #bw "0" \
18 : "=a"(value) : "Nd"(port)); \
19 return value; \
20}
21
22BUILDIO(b, b, u8)
23BUILDIO(w, w, u16)
24BUILDIO(l, , u32)
25#undef BUILDIO
26
27#define inb __inb
28#define inw __inw
29#define inl __inl
30#define outb __outb
31#define outw __outw
32#define outl __outl
33
34#endif
35