root/arch/sh/include/asm/io_generic.h

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INCLUDED FROM

   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
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