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| /freebsd-11-stable/sys/x86/x86/ | ||
| H A D | busdma_bounce.c | diff 131529 Sat Jul 03 16:18:36 MDT 2004 scottl Commit the first of half of changes that allow busdma to transparently honor the alignment and boundary constraints in the dma tag when loading buffers. Previously, these constraints were only honored when allocating memory via bus_dmamem_alloc(). Now, bus_dmamap_load() will automatically use bounce buffers when needed. Also add a set of sysctls to monitor the global busdma stats. These are: hw.busdma.free_bpages hw.busdma.reserved_bpages hw.busdma.active_bpages hw.busdma.total_bpages hw.busdma.total_bounced hw.busdma.total_deferred |
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