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Sat, 05 Sep 2020 16:13:53 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 5 Sep 2020 16:13:50 +0800 Received: from localhost.localdomain (10.17.3.153) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 5 Sep 2020 16:13:44 +0800 From: Yong Wu To: Joerg Roedel , Matthias Brugger , Rob Herring , Robin Murphy Subject: [PATCH v2 16/23] iommu/mediatek: Add single domain Date: Sat, 5 Sep 2020 16:09:13 +0800 Message-ID: <20200905080920.13396-17-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200905080920.13396-1-yong.wu@mediatek.com> References: <20200905080920.13396-1-yong.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N Cc: youlin.pei@mediatek.com, devicetree@vger.kernel.org, Nicolas Boichat , srv_heupstream@mediatek.com, chao.hao@mediatek.com, linux-kernel@vger.kernel.org, Evan Green , Tomasz Figa , iommu@lists.linux-foundation.org, linux-mediatek@lists.infradead.org, ming-fan.chen@mediatek.com, anan.sun@mediatek.com, Will Deacon , linux-arm-kernel@lists.infradead.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Defaultly the iova range is 0-4G. here we add a single-domain(0-4G) for the previous SoC. this also is a preparing patch for supporting multi-domains. Signed-off-by: Yong Wu --- drivers/iommu/mtk_iommu.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c index 5b63732044de..10b9a86ea826 100644 --- a/drivers/iommu/mtk_iommu.c +++ b/drivers/iommu/mtk_iommu.c @@ -158,6 +158,10 @@ struct mtk_iommu_iova_region { unsigned long long size; }; +static const struct mtk_iommu_iova_region single_domain[] = { + {.iova_base = 0, .size = SZ_4G}, +}; + /* * There may be 1 or 2 M4U HWs, But we always expect they are in the same domain * for the performance. @@ -877,6 +881,8 @@ static const struct mtk_iommu_plat_data mt2712_data = { .m4u_plat = M4U_MT2712, .flags = HAS_4GB_MODE | HAS_BCLK | HAS_VLD_PA_RNG, .inv_sel_reg = REG_MMU_INV_SEL_GEN1, + .iova_region = single_domain, + .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}, {6}, {7}}, }; @@ -884,6 +890,8 @@ static const struct mtk_iommu_plat_data mt6779_data = { .m4u_plat = M4U_MT6779, .flags = HAS_SUB_COMM | OUT_ORDER_WR_EN | WR_THROT_EN, .inv_sel_reg = REG_MMU_INV_SEL_GEN2, + .iova_region = single_domain, + .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {5}, {7, 8}, {10}, {9}}, }; @@ -891,6 +899,8 @@ static const struct mtk_iommu_plat_data mt8173_data = { .m4u_plat = M4U_MT8173, .flags = HAS_4GB_MODE | HAS_BCLK | RESET_AXI, .inv_sel_reg = REG_MMU_INV_SEL_GEN1, + .iova_region = single_domain, + .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {1}, {2}, {3}, {4}, {5}}, /* Linear mapping. */ }; @@ -898,6 +908,8 @@ static const struct mtk_iommu_plat_data mt8183_data = { .m4u_plat = M4U_MT8183, .flags = RESET_AXI, .inv_sel_reg = REG_MMU_INV_SEL_GEN1, + .iova_region = single_domain, + .iova_region_nr = ARRAY_SIZE(single_domain), .larbid_remap = {{0}, {4}, {5}, {6}, {7}, {2}, {3}, {1}}, }; -- 2.18.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu