linux-kernel - [PATCH 04/12] iommu/mediatek: Add APU iommu data for mt8195

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20211210175223.31131-5-flora.fu@mediatek.com>
Date:   Sat, 11 Dec 2021 01:52:15 +0800
From:   Flora Fu <flora.fu@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Pi-Cheng Chen <pi-cheng.chen@...iatek.com>,
        Yong Wu <yong.wu@...iatek.com>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        Flora Fu <flora.fu@...iatek.com>,
        "JB Tsai" <jb.tsai@...iatek.com>
Subject: [PATCH 04/12] iommu/mediatek: Add APU iommu data for mt8195

Add hardware settins for support mt8195 apu iommu.

Signed-off-by: Yong Wu <yong.wu@...iatek.com>
Signed-off-by: Flora Fu <flora.fu@...iatek.com>

---
 drivers/iommu/mtk_iommu.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 4bc7c76062e6..3fda9ad9f925 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -218,6 +218,13 @@ static const struct mtk_iommu_iova_region mt8192_multi_dom_apu[] = {
 	{ .iova_base = 0x70000000ULL,	.size = 0x12600000}, /* APU REG */
 };
 
+static const struct mtk_iommu_iova_region mt8195_multi_dom_apu[] = {
+	{ .iova_base = 0x0,		.size = SZ_4G}, /* APU DATA */
+	{ .iova_base = 0x8000000ULL,	.size = 0x8000000},  /* APU VLM */
+	{ .iova_base = 0x20000000ULL,	.size = 0xe0000000}, /* APU VPU */
+	{ .iova_base = 0x70000000ULL,	.size = 0x12600000}, /* APU REG */
+};
+
 /* If 2 M4U share a domain(use the same hwlist), Put the corresponding info in first data.*/
 static struct mtk_iommu_data *mtk_iommu_get_frst_data(struct list_head *hwlist)
 {
@@ -1312,6 +1319,18 @@ static const struct mtk_iommu_plat_data mt8192_data_apu = {
 	.iova_region_nr = ARRAY_SIZE(mt8192_multi_dom_apu),
 };
 
+static const struct mtk_iommu_plat_data mt8195_data_apu = {
+	.m4u_plat       = M4U_MT8195,
+	.flags          = DCM_DISABLE | MTK_IOMMU_TYPE_APU |
+			  SHARE_PGTABLE,
+	.inv_sel_reg    = REG_MMU_INV_SEL_GEN2,
+	.hw_list        = &apulist,
+	.bank_nr	= 1,
+	.bank_enable    = {true},
+	.iova_region    = mt8195_multi_dom_apu,
+	.iova_region_nr = ARRAY_SIZE(mt8195_multi_dom_apu),
+};
+
 static const struct mtk_iommu_plat_data mt8195_data_infra = {
 	.m4u_plat	  = M4U_MT8195,
 	.flags            = WR_THROT_EN | DCM_DISABLE |
@@ -1368,6 +1387,7 @@ static const struct of_device_id mtk_iommu_of_ids[] = {
 	{ .compatible = "mediatek,mt8183-m4u", .data = &mt8183_data},
 	{ .compatible = "mediatek,mt8192-m4u", .data = &mt8192_data},
 	{ .compatible = "mediatek,mt8192-iommu-apu",   .data = &mt8192_data_apu},
+	{ .compatible = "mediatek,mt8195-iommu-apu",   .data = &mt8195_data_apu},
 	{ .compatible = "mediatek,mt8195-iommu-infra", .data = &mt8195_data_infra},
 	{ .compatible = "mediatek,mt8195-iommu-vdo",   .data = &mt8195_data_vdo},
 	{ .compatible = "mediatek,mt8195-iommu-vpp",   .data = &mt8195_data_vpp},
-- 
2.18.0