| Subject | Re: [PATCH v3 14/33] iommu/mediatek: Always enable output PA over 32bits in isr | From | AngeloGioacchino Del Regno <> | Date | Tue, 4 Jan 2022 16:55:33 +0100 |
| |
Il 23/09/21 13:58, Yong Wu ha scritto: > Currently the output PA[32:33] is contained by the flag IOVA_34. > This is not right. the iova_34 has no relation with pa[32:33], the 32bits > iova still could map to pa[32:33]. Move it out from the flag. > > No need fix tag since currently only mt8192 use the calulation and it > always has this IOVA_34 flag. > > Prepare for the IOMMU that still use IOVA 32bits but its dram size may be > over 4GB. > > Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
|