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authorLinus Torvalds <[email protected]>2011-04-19 10:54:44 -0700
committerLinus Torvalds <[email protected]>2011-04-19 10:54:44 -0700
commit71460af58f8565110160283849db4d6bf7e1efa1 (patch)
tree79e639b40228bfb9dba1ae424a7fea0ca74a1b98 /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py
parentf28c6179e5d8793bbeaceaef15fbbedcb2745f3b (diff)
Revert "[media] V4L: videobuf, don't use dma addr as physical"
This reverts commit 35d9f510b67b10338161aba6229d4f55b4000f5b. Quoth Jiri Slaby: "It fixes mmap when IOMMU is used on x86 only, but breaks architectures like ARM or PPC where virt_to_phys(dma_alloc_coherent) doesn't work. We need there dma_mmap_coherent or similar (the trickery what snd_pcm_default_mmap does but in some saner way). But this cannot be done at this phase." Requested-by: Jiri Slaby <[email protected]> Cc: Russell King - ARM Linux <[email protected]> Cc: Janusz Krzysztofik <[email protected]> Acked-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
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