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author | Jason A. Harmening <jah@FreeBSD.org> | 2017-07-01 05:35:29 +0000 |
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committer | Jason A. Harmening <jah@FreeBSD.org> | 2017-07-01 05:35:29 +0000 |
commit | eb36b1d0bc5f7ece94083e6e509da41117a76566 (patch) | |
tree | 07a2e3d5a52c83df1b8cd0a69defb89adb4b4cdf /Makefile.inc1 | |
parent | 545414213d777df779948c28b21d3d81c12bff20 (diff) |
Clean up MD pollution of bus_dma.h:
--Remove special-case handling of sparc64 bus_dmamap* functions.
Replace with a more generic mechanism that allows MD busdma
implementations to generate inline mapping functions by
defining WANT_INLINE_DMAMAP in <machine/bus_dma.h>. This
is currently useful for sparc64, x86, and arm64, which all
implement non-load dmamap operations as simple wrappers
around map objects which may be bus- or device-specific.
--Remove NULL-checked bus_dmamap macros. Implement the
equivalent NULL checks in the inlined x86 implementation.
For non-x86 platforms, these checks are a minor pessimization
as those platforms do not currently allow NULL maps. NULL
maps were originally allowed on arm64, which appears to have
been the motivation behind adding arm[64]-specific barriers
to bus_dma.h, but that support was removed in r299463.
--Simplify the internal interface used by the bus_dmamap_load*
variants and move it to bus_dma_internal.h
--Fix some drivers that directly include sys/bus_dma.h
despite the recommendations of bus_dma(9)
Reviewed by: kib (previous revision), marius
Differential Revision: https://reviews.freebsd.org/D10729
Notes
Notes:
svn path=/head/; revision=320528
Diffstat (limited to 'Makefile.inc1')
0 files changed, 0 insertions, 0 deletions