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Add Linux DMA_BIT_MASK.

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This commit is contained in:
riastradh 2014-08-06 13:50:53 +00:00
parent 5cde205f49
commit f4c69fcf8d
1 changed files with 8 additions and 1 deletions
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9
sys/external/bsd/drm2/include/linux/dma-mapping.h vendored
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@ -1,4 +1,4 @@
/* $NetBSD: dma-mapping.h,v 1.2 2014/03/18 18:20:43 riastradh Exp $ */
/* $NetBSD: dma-mapping.h,v 1.3 2014/08/06 13:50:53 riastradh Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@ -36,4 +36,11 @@
typedef bus_addr_t dma_addr_t;
static inline uintmax_t
DMA_BIT_MASK(unsigned nbits)
{
return ~(~(uintmax_t)0 << nbits);
}
#endif /* _LINUX_DMA_MAPPING_H_ */