io_generic.h 661 B

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  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. #ifndef __IO_PREFIX
  11. #error "Don't include this header without a valid system prefix"
  12. #endif
  13. void __iomem *IO_CONCAT(__IO_PREFIX,ioport_map)(unsigned long addr, unsigned int size);
  14. void IO_CONCAT(__IO_PREFIX,ioport_unmap)(void __iomem *addr);
  15. void IO_CONCAT(__IO_PREFIX,mem_init)(void);
  16. #undef __IO_PREFIX