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946e719c |
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02-Jun-2023 |
Chengci.Xu <chengci.xu@mediatek.com> |
iommu/mediatek: Add enable IOMMU SMC command for INFRA masters Prepare for MT8188. In MT8188, the register which enables IOMMU for INFRA masters are in the secure world for security concerns, therefore we add a SMC command for INFRA masters to enable IOMMU in ATF. Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com> Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com> Link: https://lore.kernel.org/r/20230602090227.7264-5-yong.wu@mediatek.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
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4e508b25 |
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17-Aug-2022 |
Chengci.Xu <chengci.xu@mediatek.com> |
memory: mtk-smi: Add enable IOMMU SMC command for MM master For concerns about security, the register to enable/disable IOMMU of SMI LARB should only be configured in secure world. Thus, we add some SMC command for multimedia master to enable/disable MM IOMMU in ATF by setting the register of SMI LARB. This function is prepared for MT8188. Signed-off-by: Chengci.Xu <chengci.xu@mediatek.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20220817124608.10062-4-chengci.xu@mediatek.com
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dbd171df |
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17-Jan-2022 |
Yong Wu <yong.wu@mediatek.com> |
media: memory: mtk-smi: Get rid of mtk_smi_larb_get/put After adding device_link between the iommu consumer and smi-larb, the pm_runtime_get(_sync) of smi-larb and smi-common will be called automatically. we can get rid of mtk_smi_larb_get/put. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: Evan Green <evgreen@chromium.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Reviewed-by: Dafna Hirschfeld <dafna.hirschfeld@collabora.com> Tested-by: Frank Wunderlich <frank-w@public-files.de> # BPI-R2/MT7623 Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
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8d2c749e |
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11-Jan-2021 |
Yong Wu <yong.wu@mediatek.com> |
iommu/mediatek: Support master use iova over 32bit After extending v7s, our pagetable already support iova reach 16GB(34bit). the master got the iova via dma_alloc_attrs may reach 34bits, but its HW register still is 32bit. then how to set the bit32/bit33 iova? this depend on a SMI larb setting(bank_sel). we separate whole 16GB iova to four banks: bank: 0: 0~4G; 1: 4~8G; 2: 8-12G; 3: 12-16G; The bank number is (iova >> 32). We will preassign which bank the larbs belong to. currently we don't have a interface for master to adjust its bank number. Each a bank is a iova_region which is a independent iommu-domain. the iova range for each iommu-domain can't cross 4G. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> #for memory part Reviewed-by: Tomasz Figa <tfiga@chromium.org> Link: https://lore.kernel.org/r/20210111111914.22211-31-yong.wu@mediatek.com Signed-off-by: Will Deacon <will@kernel.org>
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66a28915 |
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11-Jan-2021 |
Yong Wu <yong.wu@mediatek.com> |
iommu/mediatek: Use the common mtk-memory-port.h Use the common memory header(larb-port) in the source code. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Link: https://lore.kernel.org/r/20210111111914.22211-9-yong.wu@mediatek.com Signed-off-by: Will Deacon <will@kernel.org>
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50fc8d92 |
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25-Jan-2021 |
Yong Wu <yong.wu@mediatek.com> |
memory: mtk-smi: Allow building as module Add support for building the SMI driver as module. Switch MTK_SMI to tristate, and add module_exit/module_license. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Link: https://lore.kernel.org/r/20210126060055.11050-1-yong.wu@mediatek.com Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
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1ee9feb2 |
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23-Aug-2019 |
Yong Wu <yong.wu@mediatek.com> |
iommu/mediatek: Clean up struct mtk_smi_iommu Remove the "struct mtk_smi_iommu" to simplify the code since it has only one item in it right now. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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ec2da07c |
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23-Aug-2019 |
Yong Wu <yong.wu@mediatek.com> |
memory: mtk-smi: Get rid of need_larbid The "mediatek,larb-id" has already been parsed in MTK IOMMU driver. It's no need to parse it again in SMI driver. Only clean some codes. This patch is fit for all the current mt2701, mt2712, mt7623, mt8173 and mt8183. After this patch, the "mediatek,larb-id" only be needed for mt2712 which have 2 M4Us. In the other SoCs, we can get the larb-id from M4U in which the larbs in the "mediatek,larbs" always are ordered. Correspondingly, the larb_nr in the "struct mtk_smi_iommu" could also be deleted. CC: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Yong Wu <yong.wu@mediatek.com> Reviewed-by: Evan Green <evgreen@chromium.org> Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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1802d0be |
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27-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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e6dec923 |
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21-Aug-2017 |
Yong Wu <yong.wu@mediatek.com> |
iommu/mediatek: Add mt2712 IOMMU support The M4U IP blocks in mt2712 is MTK's generation2 M4U which use the ARM Short-descriptor like mt8173, and most of the HW registers are the same. The difference is that there are 2 M4U HWs in mt2712 while there's only one in mt8173. The purpose of 2 M4U HWs is for balance the bandwidth. Normally if there are 2 M4U HWs, there should be 2 iommu domains, each M4U has a iommu domain. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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cc8bbe1a |
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22-Feb-2016 |
Yong Wu <yong.wu@mediatek.com> |
memory: mediatek: Add SMI driver This patch add SMI(Smart Multimedia Interface) driver. This driver is responsible to enable/disable iommu and control the power domain and clocks of each local arbiter. Signed-off-by: Yong Wu <yong.wu@mediatek.com> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org> Tested-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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