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From: Chao Hao <chao.hao@mediatek.com>
To: Joerg Roedel <joro@8bytes.org>, Rob Herring <robh+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>
Cc: Anan Sun <anan.sun@mediatek.com>,
	devicetree@vger.kernel.org, Cui Zhang <cui.zhang@mediatek.com>,
	Jun Yan <jun.yan@mediatek.com>,
	wsd_upstream@mediatek.com, linux-kernel@vger.kernel.org,
	Chao Hao <chao.hao@mediatek.com>,
	iommu@lists.linux-foundation.org,
	linux-mediatek@lists.infradead.org,
	Miles Chen <miles.chen@mediatek.com>,
	linux-arm-kernel@lists.infradead.org,
	Guangming Cao <guangming.cao@mediatek.com>
Subject: [RESEND, PATCH 13/13] iommu/mediatek: Add multiple mtk_iommu_domain support for mt6779
Date: Mon, 4 Nov 2019 19:52:38 +0800	[thread overview]
Message-ID: <20191104115238.2394-14-chao.hao@mediatek.com> (raw)
In-Reply-To: <20191104115238.2394-1-chao.hao@mediatek.com>

For mt6779, it need to support three mtk_iommu_domains, every
mtk_iommu_domain's iova space is different.
Three mtk_iommu_domains is as below:
1. Normal mtk_iommu_domain exclude 0x4000_0000~0x47ff_ffff and
   0x7da0_0000~7fbf_ffff.
2. CCU mtk_iommu_domain include 0x4000_0000~0x47ff_ffff.
3. VPU mtk_iommu_domain 0x7da0_0000~0x7fbf_ffff.

Signed-off-by: Chao Hao <chao.hao@mediatek.com>
---
 drivers/iommu/mtk_iommu.c | 45 +++++++++++++++++++++++++++++++++++++--
 1 file changed, 43 insertions(+), 2 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index c33ea55a1841..882fe01ff770 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -140,6 +140,30 @@ const struct mtk_domain_data single_dom = {
 	.max_iova = DMA_BIT_MASK(32)
 };
 
+/*
+ * related file: mt6779-larb-port.h
+ */
+const struct mtk_domain_data mt6779_multi_dom[] = {
+	/* normal domain */
+	{
+	 .min_iova = 0x0,
+	 .max_iova = DMA_BIT_MASK(32),
+	},
+	/* ccu domain */
+	{
+	 .min_iova = 0x40000000,
+	 .max_iova = 0x48000000 - 1,
+	 .port_mask = {MTK_M4U_ID(9, 21), MTK_M4U_ID(9, 22),
+		       MTK_M4U_ID(12, 0), MTK_M4U_ID(12, 1)}
+	},
+	/* vpu domain */
+	{
+	 .min_iova = 0x7da00000,
+	 .max_iova = 0x7fc00000 - 1,
+	 .port_mask = {MTK_M4U_ID(13, 0)}
+	}
+};
+
 static struct mtk_iommu_pgtable *share_pgtable;
 static const struct iommu_ops mtk_iommu_ops;
 
@@ -1055,6 +1079,21 @@ static const struct dev_pm_ops mtk_iommu_pm_ops = {
 	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_iommu_suspend, mtk_iommu_resume)
 };
 
+static const struct mtk_iommu_resv_iova_region mt6779_iommu_rsv_list[] = {
+	{
+		.dom_id = 0,
+		.iova_base = 0x40000000,	/* CCU */
+		.iova_size = 0x8000000,
+		.type = IOMMU_RESV_RESERVED,
+	},
+	{
+		.dom_id = 0,
+		.iova_base = 0x7da00000,	/* VPU/MDLA */
+		.iova_size = 0x2700000,
+		.type = IOMMU_RESV_RESERVED,
+	},
+};
+
 static const struct mtk_iommu_plat_data mt2712_data = {
 	.m4u_plat     = M4U_MT2712,
 	.has_4gb_mode = true,
@@ -1068,8 +1107,10 @@ static const struct mtk_iommu_plat_data mt2712_data = {
 
 static const struct mtk_iommu_plat_data mt6779_data = {
 	.m4u_plat = M4U_MT6779,
-	.dom_cnt = 1,
-	.dom_data = &single_dom,
+	.resv_cnt     = ARRAY_SIZE(mt6779_iommu_rsv_list),
+	.resv_region  = mt6779_iommu_rsv_list,
+	.dom_cnt = ARRAY_SIZE(mt6779_multi_dom),
+	.dom_data = mt6779_multi_dom,
 	.larbid_remap[0] = {0, 1, 2, 3, 5, 7, 10, 9},
 	/* vp6a, vp6b, mdla/core2, mdla/edmc*/
 	.larbid_remap[1] = {2, 0, 3, 1},
-- 
2.18.0

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      parent reply	other threads:[~2019-11-04 11:53 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-04 11:52 [RESEND,PATCH 00/13] MT6779 IOMMU SUPPORT Chao Hao
2019-11-04 11:52 ` [RESEND,PATCH 01/13] dt-bindings: mediatek: Add bindings for MT6779 Chao Hao
2019-11-06 23:40   ` Rob Herring
2019-12-16 12:05   ` Yong Wu
2019-12-20 11:01     ` chao hao
2019-11-04 11:52 ` [RESEND,PATCH 02/13] iommu/mediatek: Add mt6779 IOMMU basic support Chao Hao
2019-12-16 12:07   ` Yong Wu
2019-12-25  6:58     ` chao hao
2019-11-04 11:52 ` [RESEND,PATCH 03/13] iommu/mediatek: Add mtk_iommu_pgtable structure Chao Hao
2019-12-16 12:13   ` Yong Wu
2019-12-31  9:39     ` chao hao
2020-02-15 12:17       ` Yong Wu
2020-02-25  7:25         ` chao hao
2020-02-26  6:36         ` chao hao
2019-11-04 11:52 ` [RESEND, PATCH 04/13] iommu/mediatek: Remove mtk_iommu_domain_finalise Chao Hao
2019-11-04 11:52 ` [RESEND, PATCH 05/13] iommu/mediatek: Remove pgtable info in mtk_iommu_domain Chao Hao
2019-11-04 11:52 ` [RESEND,PATCH 06/13] iommu/mediatek: Change get the way of m4u_group Chao Hao
2019-11-04 11:52 ` [RESEND,PATCH 07/13] iommu/mediatek: Add smi_larb info about device Chao Hao
2019-11-04 11:52 ` [RESEND,PATCH 08/13] iommu/mediatek: Add mtk_domain_data structure Chao Hao
2019-11-04 11:52 ` [RESEND, PATCH 09/13] iommu/mediatek: Remove the usage of m4u_dom variable Chao Hao
2019-11-04 11:52 ` [RESEND, PATCH 10/13] iommu/mediatek: Remove mtk_iommu_get_m4u_data api Chao Hao
2019-11-04 11:52 ` [RESEND,PATCH 11/13] iommu/mediatek: Add iova reserved function Chao Hao
2019-11-04 11:52 ` [RESEND, PATCH 12/13] iommu/mediatek: Change single domain to multiple domains Chao Hao
2019-11-04 11:52 ` Chao Hao [this message]

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