34 lines
747 B
C
34 lines
747 B
C
#ifndef _IPXE_IOMAP_VIRT_H
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#define _IPXE_IOMAP_VIRT_H
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/** @file
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*
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* iPXE I/O mapping API using phys_to_virt()
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*
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*/
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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#ifdef IOMAP_VIRT
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#define IOMAP_PREFIX_virt
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#else
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#define IOMAP_PREFIX_virt __virt_
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#endif
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static inline __always_inline void *
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IOMAP_INLINE ( virt, ioremap ) ( unsigned long bus_addr, size_t len __unused ) {
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return ( bus_addr ? phys_to_virt ( bus_addr ) : NULL );
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}
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static inline __always_inline void
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IOMAP_INLINE ( virt, iounmap ) ( volatile const void *io_addr __unused ) {
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/* Nothing to do */
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}
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static inline __always_inline unsigned long
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IOMAP_INLINE ( virt, io_to_bus ) ( volatile const void *io_addr ) {
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return virt_to_phys ( io_addr );
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}
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#endif /* _IPXE_IOMAP_VIRT_H */
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