1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Trivial I/O routine definitions, intentionally meant to be included
4  * multiple times. Ugly I/O routine concatenation helpers taken from
5  * alpha. Must be included _before_ io.h to avoid preprocessor-induced
6  * routine mismatch.
7  */
8 #define IO_CONCAT(a,b)	_IO_CONCAT(a,b)
9 #define _IO_CONCAT(a,b)	a ## _ ## b
10 
11 #ifndef __IO_PREFIX
12 #error "Don't include this header without a valid system prefix"
13 #endif
14 
15 void __iomem *IO_CONCAT(__IO_PREFIX,ioport_map)(unsigned long addr, unsigned int size);
16 void IO_CONCAT(__IO_PREFIX,ioport_unmap)(void __iomem *addr);
17 void IO_CONCAT(__IO_PREFIX,mem_init)(void);
18 
19 #undef __IO_PREFIX
20