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Message-ID: <5714447E.2030400@rock-chips.com>
Date: Mon, 18 Apr 2016 10:20:46 +0800
From: Mark yao <mark.yao@rock-chips.com>
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To: Marek Szyprowski <m.szyprowski@samsung.com>,
        iommu@lists.linux-foundation.org, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org
CC: linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org,
        Arnd Bergmann <arnd@arndb.de>, Will Deacon <will.deacon@arm.com>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Robin Murphy <robin.murphy@arm.com>,
        Russell King - ARM Linux <linux@arm.linux.org.uk>,
        Joerg Roedel <joro@8bytes.org>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Sakari Ailus <sakari.ailus@iki.fi>, Heiko Stuebner <heiko@sntech.de>,
        Tomasz Figa <tfiga@chromium.org>, Inki Dae <inki.dae@samsung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
        Krzysztof Kozlowski <k.kozlowski@samsung.com>
Subject: Re: [RFC 3/3] iommu: dma-iommu: use common implementation also on
 ARM architecture
References: <1455870164-25337-1-git-send-email-m.szyprowski@samsung.com> <1455870164-25337-4-git-send-email-m.szyprowski@samsung.com>
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On 2016年02月19日 16:22, Marek Szyprowski wrote:
> This patch replaces ARM-specific IOMMU-based DMA-mapping implementation
> with generic IOMMU DMA-mapping code shared with ARM64 architecture. The
> side-effect of this change is a switch from bitmap-based IO address space
> management to tree-based code. There should be no functional changes
> for drivers, which rely on initialization from generic arch_setup_dna_ops()
> interface. Code, which used old arm_iommu_* functions must be updated to
> new interface.
>
> Signed-off-by: Marek Szyprowski<m.szyprowski@samsung.com>
IOMMU works good on drm/rockchip ARM64 platform with this patch. So

Tested-by: Mark Yao <mark.yao@rock-chips.com>

Thanks.

-- 
Ｍark Yao