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| author | Yong Wu <yong.wu@mediatek.com> | 2022-05-03 15:14:23 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-05-04 10:39:40 +0200 |
| commit | 57fb481f9008997563a8de96aa49726fd51d6e3e (patch) | |
| tree | b5b0d086360f361049eb1458646b5bb3cc8657fb /drivers/pci/ats.c | |
| parent | d72e0ff5424e74b551c73ed2d34c73b70b921733 (diff) | |
iommu/mediatek: Get the proper bankid for multi banks
We preassign some ports in a special bank via the new defined
banks_portmsk. Put it in the plat_data means it is not expected to be
adjusted dynamically.
If the iommu id in the iommu consumer's dtsi node is inside this
banks_portmsk, then we switch it to this special iommu bank, and
initialise the IOMMU bank HW.
Each bank has the independent pgtable(4GB iova range). Each bank
is a independent iommu domain/group. Currently we don't separate different
iova ranges inside a bank.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/20220503071427.2285-33-yong.wu@mediatek.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/pci/ats.c')
0 files changed, 0 insertions, 0 deletions