2016-04-18 02:21:11

by Mark yao

[permalink] [raw]
Subject: Re: [RFC 3/3] iommu: dma-iommu: use common implementation also on ARM architecture

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<[email protected]>
IOMMU works good on drm/rockchip ARM64 platform with this patch. So

Tested-by: Mark Yao <[email protected]>

Thanks.

--
Mark Yao