Thread (48 messages) 48 messages, 3 authors, 2022-02-16

Re: [PATCH v4 29/35] iommu/mediatek: Add mtk_iommu_bank_data structure

From: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Date: 2022-01-27 11:17:19
Also in: linux-arm-kernel, linux-iommu, linux-mediatek, lkml

Il 25/01/22 09:56, Yong Wu ha scritto:
Prepare for supporting multi-banks for the IOMMU HW, No functional change.

Add a new structure(mtk_iommu_bank_data) for each a bank. Each a bank have
the independent HW base/IRQ/tlb-range ops, and each a bank has its special
iommu-domain(independent pgtable), thus, also move the domain information
into it.

In previous SoC, we have only one bank which could be treated as bank0(
bankid always is 0 for the previous SoC).

After adding this structure, the tlb operations and irq could use
bank_data as parameter.

Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
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