From: Jayachandran C <jchandra@broadcom.com>
Date: Mon, 10 Jun 2013 06:28:08 +0000 (+0000)
Subject: MIPS: Support SWIOTLB in default dma operations
X-Git-Tag: v3.11-rc1~14^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4954a9a211f1863e3ca3958fd56ad06e1bddc22d;p=pandora-kernel.git

MIPS: Support SWIOTLB in default dma operations

Provide a default implementation of phys_to_dma and dma_to_phys in
mach-generic/dma_coherence.h.

If CONFIG_NEED_SG_DMA_LENGTH is defined, the dma_length field in
struct scatterlist is used. Set this up in mips_dma_map_sg so that
the default mips DMA ops can be used when SWIOTLB is enabled.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5409/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---

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