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[RAMEN9610-12270] iommu/exynos: do not force IOMMU_CACHE
authorCho KyongHo <pullip.cho@samsung.com>
Mon, 18 Feb 2019 02:28:45 +0000 (11:28 +0900)
committerhskang <hs1218.kang@samsung.com>
Wed, 20 Feb 2019 01:00:36 +0000 (10:00 +0900)
commit81f65e22be0e97b47ca9cc19501e1af5966c90cb
tree86b160b0e4210ab86228b5533eadf779f4a630cctree | snapshot (tar.gz zip)
parent4fec338698cd1f3c73481492d79ae395bea50945commit | diff
[RAMEN9610-12270] iommu/exynos: do not force IOMMU_CACHE

IOMMU_CACHE of Exynos IOMMU means shareable in the page tables of IOMMU.
Forcing shareable to all I/O coherent DMAs may obstruct changes to
shareability property of DMAs of the client drivers.

Change-Id: Ibb5e0f5f5a0e0ef6942b2d7901014e6b94e430b1
Signed-off-by: Cho KyongHo <pullip.cho@samsung.com>
drivers/iommu/exynos-iovmm.c diff | blob | blame | history