kernel/linux.git/drivers/iommu/mtk_iommu.h, branch v5.15.202

iommu/mediatek: Add mutex for m4u_group and m4u_dom in data

2022-06-09T08:23:14+00:00

[ Upstream commit 0e5a3f2e630b28e88e018655548212ef8eb4dfcb ] Add a mutex to protect the data in the structure mtk_iommu_data, like ->"m4u_group" ->"m4u_dom". For the internal data, we should protect it in ourselves driver. Add a mutex for this. This could be a fix for the multi-groups support. Fixes: c3045f39244e ("iommu/mediatek: Support for multi domains") Signed-off-by: Yunfei Wang Signed-off-by: Yong Wu Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Matthias Brugger Link: https://lore.kernel.org/r/20220503071427.2285-8-yong.wu@mediatek.com Signed-off-by: Joerg Roedel Signed-off-by: Sasha Levin

iommu/mediatek: Add mt8192 support

2021-02-01T11:31:19+00:00

Add mt8192 iommu support. Signed-off-by: Yong Wu Reviewed-by: Tomasz Figa Link: https://lore.kernel.org/r/20210111111914.22211-33-yong.wu@mediatek.com Signed-off-by: Will Deacon

iommu/mediatek: Support for multi domains

2021-02-01T11:31:19+00:00

Some HW IP(ex: CCU) require the special iova range. That means the iova got from dma_alloc_attrs for that devices must locate in his special range. In this patch, we prepare a iommu group(domain) for each a iova range requirement. Meanwhile we still use one pagetable which support 16GB iova. After this patch, If the iova range of a master is over 4G, the master should: a) Declare its special dma-ranges in its dtsi node. For example, If we preassign the iova 4G-8G for vcodec, then the vcodec dtsi node should add this: /* * iova start at 0x1_0000_0000, pa still start at 0x4000_0000 * size is 0x1_0000_0000. */ dma-ranges = <0x1 0x0 0x0 0x40000000 0x1 0x0>; /* 4G ~ 8G */ Note: we don't have a actual bus concept here. the master doesn't have its special parent node, thus this dma-ranges can only be put in the master's node. b) Update the dma_mask: dma_set_mask_and_coherent(dev, DMA_BIT_MASK(33)); Signed-off-by: Yong Wu Reviewed-by: Tomasz Figa Link: https://lore.kernel.org/r/20210111111914.22211-29-yong.wu@mediatek.com Signed-off-by: Will Deacon

iommu/mediatek: Add iova_region structure

2021-02-01T11:31:19+00:00

Add a new structure for the iova_region. Each a region will be a independent iommu domain. For the previous SoC, there is single iova region(0~4G). For the SoC that need support multi-domains, there will be several regions. Signed-off-by: Yong Wu Reviewed-by: Tomasz Figa Link: https://lore.kernel.org/r/20210111111914.22211-27-yong.wu@mediatek.com Signed-off-by: Will Deacon

iommu/mediatek: Add device link for smi-common and m4u

2021-02-01T11:31:18+00:00

In the lastest SoC, M4U has its special power domain. thus, If the engine begin to work, it should help enable the power for M4U firstly. Currently if the engine work, it always enable the power/clocks for smi-larbs/smi-common. This patch adds device_link for smi-common and M4U. then, if smi-common power is enabled, the M4U power also is powered on automatically. Normally M4U connect with several smi-larbs and their smi-common always are the same, In this patch it get smi-common dev from the last smi-larb device, then add the device_link. Signed-off-by: Yong Wu Reviewed-by: Tomasz Figa Link: https://lore.kernel.org/r/20210111111914.22211-19-yong.wu@mediatek.com Signed-off-by: Will Deacon

iommu/mediatek: Use the common mtk-memory-port.h

2021-02-01T11:31:16+00:00

Use the common memory header(larb-port) in the source code. Signed-off-by: Yong Wu Acked-by: Krzysztof Kozlowski Reviewed-by: Tomasz Figa Link: https://lore.kernel.org/r/20210111111914.22211-9-yong.wu@mediatek.com Signed-off-by: Will Deacon

iommu/mediatek: Add support for MT8167

2020-09-18T08:29:12+00:00

Add support for the IOMMU on MT8167 Signed-off-by: Fabien Parent Reviewed-by: Yong Wu Link: https://lore.kernel.org/r/20200907101649.1573134-3-fparent@baylibre.com Signed-off-by: Joerg Roedel

Merge branches 'arm/renesas', 'arm/qcom', 'arm/mediatek', 'arm/omap', 'arm/exynos', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next

2020-07-29T12:42:00+00:00

iommu/mediatek: Include liunx/dma-mapping.h

2020-07-13T10:18:44+00:00

This fixes a compile error when cross-compiling the driver on x86-32. Signed-off-by: Joerg Roedel Link: https://lore.kernel.org/r/20200713101648.32056-1-joro@8bytes.org

iommu/mediatek: Add mt6779 basic support

2020-07-10T14:13:11+00:00

1. Start from mt6779, INVLDT_SEL move to offset=0x2c, so we add REG_MMU_INV_SEL_GEN2 definition and mt6779 uses it. 2. Add mt6779_data to support mm_iommu HW init. Signed-off-by: Chao Hao Reviewed-by: Matthias Brugger Cc: Yong Wu Link: https://lore.kernel.org/r/20200703044127.27438-11-chao.hao@mediatek.com Signed-off-by: Joerg Roedel