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authorWill Deacon <will@kernel.org>2021-02-01 12:59:28 +0000
committerWill Deacon <will@kernel.org>2021-02-01 12:59:28 +0000
commit7060377ce06f9cd3ed6274c0f2310463feb5baec (patch)
tree7d56c4f466310d63c323c1b326c1b4ec2484a3f4
parent34eb9359c111fd17ef8fb1ba671102438a7810c6 (diff)
parent6af4873852c471c910f06e6a695dfd2b1741ccab (diff)
Merge branch 'for-joerg/mtk' into for-joerg/arm-smmu/updates
Merge in Mediatek support from Yong Wu which introduces significant changes to the TLB invalidation and Arm short-descriptor code in the io-pgtable layer. * for-joerg/mtk: (40 commits) MAINTAINERS: Add entry for MediaTek IOMMU iommu/mediatek: Add mt8192 support iommu/mediatek: Remove unnecessary check in attach_device iommu/mediatek: Support master use iova over 32bit iommu/mediatek: Add iova reserved function iommu/mediatek: Support for multi domains iommu/mediatek: Add get_domain_id from dev->dma_range_map iommu/mediatek: Add iova_region structure iommu/mediatek: Move geometry.aperture updating into domain_finalise iommu/mediatek: Move domain_finalise into attach_device iommu/mediatek: Adjust the structure iommu/mediatek: Support report iova 34bit translation fault in ISR iommu/mediatek: Support up to 34bit iova in tlb flush iommu/mediatek: Add power-domain operation iommu/mediatek: Add pm runtime callback iommu/mediatek: Add device link for smi-common and m4u iommu/mediatek: Add error handle for mtk_iommu_probe iommu/mediatek: Move hw_init into attach_device iommu/mediatek: Update oas for v7s iommu/mediatek: Add a flag for iova 34bits case ...
-rw-r--r--Documentation/devicetree/bindings/iommu/mediatek,iommu.txt105
-rw-r--r--Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml183
-rw-r--r--MAINTAINERS9
-rw-r--r--drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c2
-rw-r--r--drivers/iommu/io-pgtable-arm-v7s.c65
-rw-r--r--drivers/iommu/iommu.c23
-rw-r--r--drivers/iommu/msm_iommu.c10
-rw-r--r--drivers/iommu/mtk_iommu.c409
-rw-r--r--drivers/iommu/mtk_iommu.h12
-rw-r--r--drivers/iommu/tegra-gart.c7
-rw-r--r--drivers/memory/mtk-smi.c8
-rw-r--r--include/dt-bindings/memory/mt2701-larb-port.h4
-rw-r--r--include/dt-bindings/memory/mt2712-larb-port.h6
-rw-r--r--include/dt-bindings/memory/mt6779-larb-port.h6
-rw-r--r--include/dt-bindings/memory/mt8167-larb-port.h6
-rw-r--r--include/dt-bindings/memory/mt8173-larb-port.h6
-rw-r--r--include/dt-bindings/memory/mt8183-larb-port.h6
-rw-r--r--include/dt-bindings/memory/mt8192-larb-port.h243
-rw-r--r--include/dt-bindings/memory/mtk-memory-port.h15
-rw-r--r--include/linux/io-pgtable.h17
-rw-r--r--include/linux/iommu.h7
-rw-r--r--include/soc/mediatek/smi.h3
22 files changed, 866 insertions, 286 deletions
diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt b/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
deleted file mode 100644
index ac949f7fe3d4..000000000000
--- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
+++ /dev/null
@@ -1,105 +0,0 @@
-* Mediatek IOMMU Architecture Implementation
-
- Some Mediatek SOCs contain a Multimedia Memory Management Unit (M4U), and
-this M4U have two generations of HW architecture. Generation one uses flat
-pagetable, and only supports 4K size page mapping. Generation two uses the
-ARM Short-Descriptor translation table format for address translation.
-
- About the M4U Hardware Block Diagram, please check below:
-
- EMI (External Memory Interface)
- |
- m4u (Multimedia Memory Management Unit)
- |
- +--------+
- | |
- gals0-rx gals1-rx (Global Async Local Sync rx)
- | |
- | |
- gals0-tx gals1-tx (Global Async Local Sync tx)
- | | Some SoCs may have GALS.
- +--------+
- |
- SMI Common(Smart Multimedia Interface Common)
- |
- +----------------+-------
- | |
- | gals-rx There may be GALS in some larbs.
- | |
- | |
- | gals-tx
- | |
- SMI larb0 SMI larb1 ... SoCs have several SMI local arbiter(larb).
- (display) (vdec)
- | |
- | |
- +-----+-----+ +----+----+
- | | | | | |
- | | |... | | | ... There are different ports in each larb.
- | | | | | |
-OVL0 RDMA0 WDMA0 MC PP VLD
-
- As above, The Multimedia HW will go through SMI and M4U while it
-access EMI. SMI is a bridge between m4u and the Multimedia HW. It contain
-smi local arbiter and smi common. It will control whether the Multimedia
-HW should go though the m4u for translation or bypass it and talk
-directly with EMI. And also SMI help control the power domain and clocks for
-each local arbiter.
- Normally we specify a local arbiter(larb) for each multimedia HW
-like display, video decode, and camera. And there are different ports
-in each larb. Take a example, There are many ports like MC, PP, VLD in the
-video decode local arbiter, all these ports are according to the video HW.
- In some SoCs, there may be a GALS(Global Async Local Sync) module between
-smi-common and m4u, and additional GALS module between smi-larb and
-smi-common. GALS can been seen as a "asynchronous fifo" which could help
-synchronize for the modules in different clock frequency.
-
-Required properties:
-- compatible : must be one of the following string:
- "mediatek,mt2701-m4u" for mt2701 which uses generation one m4u HW.
- "mediatek,mt2712-m4u" for mt2712 which uses generation two m4u HW.
- "mediatek,mt6779-m4u" for mt6779 which uses generation two m4u HW.
- "mediatek,mt7623-m4u", "mediatek,mt2701-m4u" for mt7623 which uses
- generation one m4u HW.
- "mediatek,mt8167-m4u" for mt8167 which uses generation two m4u HW.
- "mediatek,mt8173-m4u" for mt8173 which uses generation two m4u HW.
- "mediatek,mt8183-m4u" for mt8183 which uses generation two m4u HW.
-- reg : m4u register base and size.
-- interrupts : the interrupt of m4u.
-- clocks : must contain one entry for each clock-names.
-- clock-names : Only 1 optional clock:
- - "bclk": the block clock of m4u.
- Here is the list which require this "bclk":
- - mt2701, mt2712, mt7623 and mt8173.
- Note that m4u use the EMI clock which always has been enabled before kernel
- if there is no this "bclk".
-- mediatek,larbs : List of phandle to the local arbiters in the current Socs.
- Refer to bindings/memory-controllers/mediatek,smi-larb.txt. It must sort
- according to the local arbiter index, like larb0, larb1, larb2...
-- iommu-cells : must be 1. This is the mtk_m4u_id according to the HW.
- Specifies the mtk_m4u_id as defined in
- dt-binding/memory/mt2701-larb-port.h for mt2701, mt7623
- dt-binding/memory/mt2712-larb-port.h for mt2712,
- dt-binding/memory/mt6779-larb-port.h for mt6779,
- dt-binding/memory/mt8167-larb-port.h for mt8167,
- dt-binding/memory/mt8173-larb-port.h for mt8173, and
- dt-binding/memory/mt8183-larb-port.h for mt8183.
-
-Example:
- iommu: iommu@10205000 {
- compatible = "mediatek,mt8173-m4u";
- reg = <0 0x10205000 0 0x1000>;
- interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_LOW>;
- clocks = <&infracfg CLK_INFRA_M4U>;
- clock-names = "bclk";
- mediatek,larbs = <&larb0 &larb1 &larb2 &larb3 &larb4 &larb5>;
- #iommu-cells = <1>;
- };
-
-Example for a client device:
- display {
- compatible = "mediatek,mt8173-disp";
- iommus = <&iommu M4U_PORT_DISP_OVL0>,
- <&iommu M4U_PORT_DISP_RDMA0>;
- ...
- };
diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
new file mode 100644
index 000000000000..0f26fe14c8e2
--- /dev/null
+++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
@@ -0,0 +1,183 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iommu/mediatek,iommu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek IOMMU Architecture Implementation
+
+maintainers:
+ - Yong Wu <yong.wu@mediatek.com>
+
+description: |+
+ Some MediaTek SOCs contain a Multimedia Memory Management Unit (M4U), and
+ this M4U have two generations of HW architecture. Generation one uses flat
+ pagetable, and only supports 4K size page mapping. Generation two uses the
+ ARM Short-Descriptor translation table format for address translation.
+
+ About the M4U Hardware Block Diagram, please check below:
+
+ EMI (External Memory Interface)
+ |
+ m4u (Multimedia Memory Management Unit)
+ |
+ +--------+
+ | |
+ gals0-rx gals1-rx (Global Async Local Sync rx)
+ | |
+ | |
+ gals0-tx gals1-tx (Global Async Local Sync tx)
+ | | Some SoCs may have GALS.
+ +--------+
+ |
+ SMI Common(Smart Multimedia Interface Common)
+ |
+ +----------------+-------
+ | |
+ | gals-rx There may be GALS in some larbs.
+ | |
+ | |
+ | gals-tx
+ | |
+ SMI larb0 SMI larb1 ... SoCs have several SMI local arbiter(larb).
+ (display) (vdec)
+ | |
+ | |
+ +-----+-----+ +----+----+
+ | | | | | |
+ | | |... | | | ... There are different ports in each larb.
+ | | | | | |
+ OVL0 RDMA0 WDMA0 MC PP VLD
+
+ As above, The Multimedia HW will go through SMI and M4U while it
+ access EMI. SMI is a bridge between m4u and the Multimedia HW. It contain
+ smi local arbiter and smi common. It will control whether the Multimedia
+ HW should go though the m4u for translation or bypass it and talk
+ directly with EMI. And also SMI help control the power domain and clocks for
+ each local arbiter.
+
+ Normally we specify a local arbiter(larb) for each multimedia HW
+ like display, video decode, and camera. And there are different ports
+ in each larb. Take a example, There are many ports like MC, PP, VLD in the
+ video decode local arbiter, all these ports are according to the video HW.
+
+ In some SoCs, there may be a GALS(Global Async Local Sync) module between
+ smi-common and m4u, and additional GALS module between smi-larb and
+ smi-common. GALS can been seen as a "asynchronous fifo" which could help
+ synchronize for the modules in different clock frequency.
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - mediatek,mt2701-m4u # generation one
+ - mediatek,mt2712-m4u # generation two
+ - mediatek,mt6779-m4u # generation two
+ - mediatek,mt8167-m4u # generation two
+ - mediatek,mt8173-m4u # generation two
+ - mediatek,mt8183-m4u # generation two
+ - mediatek,mt8192-m4u # generation two
+
+ - description: mt7623 generation one
+ items:
+ - const: mediatek,mt7623-m4u
+ - const: mediatek,mt2701-m4u
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: bclk is the block clock.
+
+ clock-names:
+ items:
+ - const: bclk
+
+ mediatek,larbs:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ minItems: 1
+ maxItems: 32
+ description: |
+ List of phandle to the local arbiters in the current Socs.
+ Refer to bindings/memory-controllers/mediatek,smi-larb.yaml. It must sort
+ according to the local arbiter index, like larb0, larb1, larb2...
+
+ '#iommu-cells':
+ const: 1
+ description: |
+ This is the mtk_m4u_id according to the HW. Specifies the mtk_m4u_id as
+ defined in
+ dt-binding/memory/mt2701-larb-port.h for mt2701 and mt7623,
+ dt-binding/memory/mt2712-larb-port.h for mt2712,
+ dt-binding/memory/mt6779-larb-port.h for mt6779,
+ dt-binding/memory/mt8167-larb-port.h for mt8167,
+ dt-binding/memory/mt8173-larb-port.h for mt8173,
+ dt-binding/memory/mt8183-larb-port.h for mt8183,
+ dt-binding/memory/mt8192-larb-port.h for mt8192.
+
+ power-domains:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - mediatek,larbs
+ - '#iommu-cells'
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - mediatek,mt2701-m4u
+ - mediatek,mt2712-m4u
+ - mediatek,mt8173-m4u
+ - mediatek,mt8192-m4u
+
+ then:
+ required:
+ - clocks
+
+ - if:
+ properties:
+ compatible:
+ enum:
+ - mediatek,mt8192-m4u
+
+ then:
+ required:
+ - power-domains
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8173-clk.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ iommu: iommu@10205000 {
+ compatible = "mediatek,mt8173-m4u";
+ reg = <0x10205000 0x1000>;
+ interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_LOW>;
+ clocks = <&infracfg CLK_INFRA_M4U>;
+ clock-names = "bclk";
+ mediatek,larbs = <&larb0 &larb1 &larb2
+ &larb3 &larb4 &larb5>;
+ #iommu-cells = <1>;
+ };
+
+ - |
+ #include <dt-bindings/memory/mt8173-larb-port.h>
+
+ /* Example for a client device */
+ display {
+ compatible = "mediatek,mt8173-disp";
+ iommus = <&iommu M4U_PORT_DISP_OVL0>,
+ <&iommu M4U_PORT_DISP_RDMA0>;
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index 546aa66428c9..35bc20398139 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -11182,6 +11182,15 @@ S: Maintained
F: Documentation/devicetree/bindings/i2c/i2c-mt65xx.txt
F: drivers/i2c/busses/i2c-mt65xx.c
+MEDIATEK IOMMU DRIVER
+M: Yong Wu <yong.wu@mediatek.com>
+L: iommu@lists.linux-foundation.org
+L: linux-mediatek@lists.infradead.org (moderated for non-subscribers)
+S: Supported
+F: Documentation/devicetree/bindings/iommu/mediatek*
+F: drivers/iommu/mtk-iommu*
+F: include/dt-bindings/memory/mt*-port.h
+
MEDIATEK JPEG DRIVER
M: Rick Chang <rick.chang@mediatek.com>
M: Bin Liu <bin.liu@mediatek.com>
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
index baebaac34a83..8594b4a83043 100644
--- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
+++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
@@ -2306,7 +2306,7 @@ static void arm_smmu_iotlb_sync(struct iommu_domain *domain,
struct arm_smmu_domain *smmu_domain = to_smmu_domain(domain);
arm_smmu_tlb_inv_range_domain(gather->start,
- gather->end - gather->start,
+ gather->end - gather->start + 1,
gather->pgsize, true, smmu_domain);
}
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index 1d92ac948db7..d4004bcf333a 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -44,26 +44,25 @@
/*
* We have 32 bits total; 12 bits resolved at level 1, 8 bits at level 2,
- * and 12 bits in a page. With some carefully-chosen coefficients we can
- * hide the ugly inconsistencies behind these macros and at least let the
- * rest of the code pretend to be somewhat sane.
+ * and 12 bits in a page.
+ * MediaTek extend 2 bits to reach 34bits, 14 bits at lvl1 and 8 bits at lvl2.
*/
#define ARM_V7S_ADDR_BITS 32
-#define _ARM_V7S_LVL_BITS(lvl) (16 - (lvl) * 4)
-#define ARM_V7S_LVL_SHIFT(lvl) (ARM_V7S_ADDR_BITS - (4 + 8 * (lvl)))
+#define _ARM_V7S_LVL_BITS(lvl, cfg) ((lvl) == 1 ? ((cfg)->ias - 20) : 8)
+#define ARM_V7S_LVL_SHIFT(lvl) ((lvl) == 1 ? 20 : 12)
#define ARM_V7S_TABLE_SHIFT 10
-#define ARM_V7S_PTES_PER_LVL(lvl) (1 << _ARM_V7S_LVL_BITS(lvl))
-#define ARM_V7S_TABLE_SIZE(lvl) \
- (ARM_V7S_PTES_PER_LVL(lvl) * sizeof(arm_v7s_iopte))
+#define ARM_V7S_PTES_PER_LVL(lvl, cfg) (1 << _ARM_V7S_LVL_BITS(lvl, cfg))
+#define ARM_V7S_TABLE_SIZE(lvl, cfg) \
+ (ARM_V7S_PTES_PER_LVL(lvl, cfg) * sizeof(arm_v7s_iopte))
#define ARM_V7S_BLOCK_SIZE(lvl) (1UL << ARM_V7S_LVL_SHIFT(lvl))
#define ARM_V7S_LVL_MASK(lvl) ((u32)(~0U << ARM_V7S_LVL_SHIFT(lvl)))
#define ARM_V7S_TABLE_MASK ((u32)(~0U << ARM_V7S_TABLE_SHIFT))
-#define _ARM_V7S_IDX_MASK(lvl) (ARM_V7S_PTES_PER_LVL(lvl) - 1)
-#define ARM_V7S_LVL_IDX(addr, lvl) ({ \
+#define _ARM_V7S_IDX_MASK(lvl, cfg) (ARM_V7S_PTES_PER_LVL(lvl, cfg) - 1)
+#define ARM_V7S_LVL_IDX(addr, lvl, cfg) ({ \
int _l = lvl; \
- ((u32)(addr) >> ARM_V7S_LVL_SHIFT(_l)) & _ARM_V7S_IDX_MASK(_l); \
+ ((addr) >> ARM_V7S_LVL_SHIFT(_l)) & _ARM_V7S_IDX_MASK(_l, cfg); \
})
/*
@@ -112,9 +111,10 @@
#define ARM_V7S_TEX_MASK 0x7
#define ARM_V7S_ATTR_TEX(val) (((val) & ARM_V7S_TEX_MASK) << ARM_V7S_TEX_SHIFT)
-/* MediaTek extend the two bits for PA 32bit/33bit */
+/* MediaTek extend the bits below for PA 32bit/33bit/34bit */
#define ARM_V7S_ATTR_MTK_PA_BIT32 BIT(9)
#define ARM_V7S_ATTR_MTK_PA_BIT33 BIT(4)
+#define ARM_V7S_ATTR_MTK_PA_BIT34 BIT(5)
/* *well, except for TEX on level 2 large pages, of course :( */
#define ARM_V7S_CONT_PAGE_TEX_SHIFT 6
@@ -194,6 +194,8 @@ static arm_v7s_iopte paddr_to_iopte(phys_addr_t paddr, int lvl,
pte |= ARM_V7S_ATTR_MTK_PA_BIT32;
if (paddr & BIT_ULL(33))
pte |= ARM_V7S_ATTR_MTK_PA_BIT33;
+ if (paddr & BIT_ULL(34))
+ pte |= ARM_V7S_ATTR_MTK_PA_BIT34;
return pte;
}
@@ -218,6 +220,8 @@ static phys_addr_t iopte_to_paddr(arm_v7s_iopte pte, int lvl,
paddr |= BIT_ULL(32);
if (pte & ARM_V7S_ATTR_MTK_PA_BIT33)
paddr |= BIT_ULL(33);
+ if (pte & ARM_V7S_ATTR_MTK_PA_BIT34)
+ paddr |= BIT_ULL(34);
return paddr;
}
@@ -234,7 +238,7 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp,
struct device *dev = cfg->iommu_dev;
phys_addr_t phys;
dma_addr_t dma;
- size_t size = ARM_V7S_TABLE_SIZE(lvl);
+ size_t size = ARM_V7S_TABLE_SIZE(lvl, cfg);
void *table = NULL;
if (lvl == 1)
@@ -280,7 +284,7 @@ static void __arm_v7s_free_table(void *table, int lvl,
{
struct io_pgtable_cfg *cfg = &data->iop.cfg;
struct device *dev = cfg->iommu_dev;
- size_t size = ARM_V7S_TABLE_SIZE(lvl);
+ size_t size = ARM_V7S_TABLE_SIZE(lvl, cfg);
if (!cfg->coherent_walk)
dma_unmap_single(dev, __arm_v7s_dma_addr(table), size,
@@ -424,7 +428,7 @@ static int arm_v7s_init_pte(struct arm_v7s_io_pgtable *data,
arm_v7s_iopte *tblp;
size_t sz = ARM_V7S_BLOCK_SIZE(lvl);
- tblp = ptep - ARM_V7S_LVL_IDX(iova, lvl);
+ tblp = ptep - ARM_V7S_LVL_IDX(iova, lvl, cfg);
if (WARN_ON(__arm_v7s_unmap(data, NULL, iova + i * sz,
sz, lvl, tblp) != sz))
return -EINVAL;
@@ -477,7 +481,7 @@ static int __arm_v7s_map(struct arm_v7s_io_pgtable *data, unsigned long iova,
int num_entries = size >> ARM_V7S_LVL_SHIFT(lvl);
/* Find our entry at the current level */
- ptep += ARM_V7S_LVL_IDX(iova, lvl);
+ ptep += ARM_V7S_LVL_IDX(iova, lvl, cfg);
/* If we can install a leaf entry at this level, then do so */
if (num_entries)
@@ -519,7 +523,6 @@ static int arm_v7s_map(struct io_pgtable_ops *ops, unsigned long iova,
phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
{
struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
- struct io_pgtable *iop = &data->iop;
int ret;
if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias) ||
@@ -535,12 +538,7 @@ static int arm_v7s_map(struct io_pgtable_ops *ops, unsigned long iova,
* Synchronise all PTE updates for the new mapping before there's
* a chance for anything to kick off a table walk for the new iova.
*/
- if (iop->cfg.quirks & IO_PGTABLE_QUIRK_TLBI_ON_MAP) {
- io_pgtable_tlb_flush_walk(iop, iova, size,
- ARM_V7S_BLOCK_SIZE(2));
- } else {
- wmb();
- }
+ wmb();
return ret;
}
@@ -550,7 +548,7 @@ static void arm_v7s_free_pgtable(struct io_pgtable *iop)
struct arm_v7s_io_pgtable *data = io_pgtable_to_data(iop);
int i;
- for (i = 0; i < ARM_V7S_PTES_PER_LVL(1); i++) {
+ for (i = 0; i < ARM_V7S_PTES_PER_LVL(1, &data->iop.cfg); i++) {
arm_v7s_iopte pte = data->pgd[i];
if (ARM_V7S_PTE_IS_TABLE(pte, 1))
@@ -602,9 +600,9 @@ static size_t arm_v7s_split_blk_unmap(struct arm_v7s_io_pgtable *data,
if (!tablep)
return 0; /* Bytes unmapped */
- num_ptes = ARM_V7S_PTES_PER_LVL(2);
+ num_ptes = ARM_V7S_PTES_PER_LVL(2, cfg);
num_entries = size >> ARM_V7S_LVL_SHIFT(2);
- unmap_idx = ARM_V7S_LVL_IDX(iova, 2);
+ unmap_idx = ARM_V7S_LVL_IDX(iova, 2, cfg);
pte = arm_v7s_prot_to_pte(arm_v7s_pte_to_prot(blk_pte, 1), 2, cfg);
if (num_entries > 1)
@@ -646,7 +644,7 @@ static size_t __arm_v7s_unmap(struct arm_v7s_io_pgtable *data,
if (WARN_ON(lvl > 2))
return 0;
- idx = ARM_V7S_LVL_IDX(iova, lvl);
+ idx = ARM_V7S_LVL_IDX(iova, lvl, &iop->cfg);
ptep += idx;
do {
pte[i] = READ_ONCE(ptep[i]);
@@ -717,7 +715,7 @@ static size_t arm_v7s_unmap(struct io_pgtable_ops *ops, unsigned long iova,
{
struct arm_v7s_io_pgtable *data = io_pgtable_ops_to_data(ops);
- if (WARN_ON(upper_32_bits(iova)))
+ if (WARN_ON(iova >= (1ULL << data->iop.cfg.ias)))
return 0;
return __arm_v7s_unmap(data, gather, iova, size, 1, data->pgd);
@@ -732,7 +730,7 @@ static phys_addr_t arm_v7s_iova_to_phys(struct io_pgtable_ops *ops,
u32 mask;
do {
- ptep += ARM_V7S_LVL_IDX(iova, ++lvl);
+ ptep += ARM_V7S_LVL_IDX(iova, ++lvl, &data->iop.cfg);
pte = READ_ONCE(*ptep);
ptep = iopte_deref(pte, lvl, data);
} while (ARM_V7S_PTE_IS_TABLE(pte, lvl));
@@ -751,15 +749,14 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
{
struct arm_v7s_io_pgtable *data;
- if (cfg->ias > ARM_V7S_ADDR_BITS)
+ if (cfg->ias > (arm_v7s_is_mtk_enabled(cfg) ? 34 : ARM_V7S_ADDR_BITS))
return NULL;
- if (cfg->oas > (arm_v7s_is_mtk_enabled(cfg) ? 34 : ARM_V7S_ADDR_BITS))
+ if (cfg->oas > (arm_v7s_is_mtk_enabled(cfg) ? 35 : ARM_V7S_ADDR_BITS))
return NULL;
if (cfg->quirks & ~(IO_PGTABLE_QUIRK_ARM_NS |
IO_PGTABLE_QUIRK_NO_PERMS |
- IO_PGTABLE_QUIRK_TLBI_ON_MAP |
IO_PGTABLE_QUIRK_ARM_MTK_EXT |
IO_PGTABLE_QUIRK_NON_STRICT))
return NULL;
@@ -775,8 +772,8 @@ static struct io_pgtable *arm_v7s_alloc_pgtable(struct io_pgtable_cfg *cfg,
spin_lock_init(&data->split_lock);
data->l2_tables = kmem_cache_create("io-pgtable_armv7s_l2",
- ARM_V7S_TABLE_SIZE(2),
- ARM_V7S_TABLE_SIZE(2),
+ ARM_V7S_TABLE_SIZE(2, cfg),
+ ARM_V7S_TABLE_SIZE(2, cfg),
ARM_V7S_TABLE_SLAB_FLAGS, NULL);
if (!data->l2_tables)
goto out_free_data;
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index ffeebda8d6de..3d099a31ddca 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -2426,9 +2426,6 @@ static int __iommu_map(struct iommu_domain *domain, unsigned long iova,
size -= pgsize;
}
- if (ops->iotlb_sync_map)
- ops->iotlb_sync_map(domain);
-
/* unroll mapping in case something went wrong */
if (ret)
iommu_unmap(domain, orig_iova, orig_size - size);
@@ -2438,18 +2435,31 @@ static int __iommu_map(struct iommu_domain *domain, unsigned long iova,
return ret;
}
+static int _iommu_map(struct iommu_domain *domain, unsigned long iova,
+ phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
+{
+ const struct iommu_ops *ops = domain->ops;
+ int ret;
+
+ ret = __iommu_map(domain, iova, paddr, size, prot, GFP_KERNEL);
+ if (ret == 0 && ops->iotlb_sync_map)
+ ops->iotlb_sync_map(domain, iova, size);
+
+ return ret;
+}
+
int iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot)
{
might_sleep();
- return __iommu_map(domain, iova, paddr, size, prot, GFP_KERNEL);
+ return _iommu_map(domain, iova, paddr, size, prot, GFP_KERNEL);
}
EXPORT_SYMBOL_GPL(iommu_map);
int iommu_map_atomic(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot)
{
- return __iommu_map(domain, iova, paddr, size, prot, GFP_ATOMIC);
+ return _iommu_map(domain, iova, paddr, size, prot, GFP_ATOMIC);
}
EXPORT_SYMBOL_GPL(iommu_map_atomic);
@@ -2533,6 +2543,7 @@ static size_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
struct scatterlist *sg, unsigned int nents, int prot,
gfp_t gfp)
{
+ const struct iommu_ops *ops = domain->ops;
size_t len = 0, mapped = 0;
phys_addr_t start;
unsigned int i = 0;
@@ -2563,6 +2574,8 @@ static size_t __iommu_map_sg(struct iommu_domain *domain, unsigned long iova,
sg = sg_next(sg);
}
+ if (ops->iotlb_sync_map)
+ ops->iotlb_sync_map(domain, iova, mapped);
return mapped;
out_err:
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 040e85f70861..f0ba6a09b434 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -343,7 +343,6 @@ static int msm_iommu_domain_config(struct msm_priv *priv)
spin_lock_init(&priv->pgtlock);
priv->cfg = (struct io_pgtable_cfg) {
- .quirks = IO_PGTABLE_QUIRK_TLBI_ON_MAP,
.pgsize_bitmap = msm_iommu_ops.pgsize_bitmap,
.ias = 32,
.oas = 32,
@@ -490,6 +489,14 @@ static int msm_iommu_map(struct iommu_domain *domain, unsigned long iova,
return ret;
}
+static void msm_iommu_sync_map(struct iommu_domain *domain, unsigned long iova,
+ size_t size)
+{
+ struct msm_priv *priv = to_msm_priv(domain);
+
+ __flush_iotlb_range(iova, size, SZ_4K, false, priv);
+}
+
static size_t msm_iommu_unmap(struct iommu_domain *domain, unsigned long iova,
size_t len, struct iommu_iotlb_gather *gather)
{
@@ -680,6 +687,7 @@ static struct iommu_ops msm_iommu_ops = {
* kick starting the other master.
*/
.iotlb_sync = NULL,
+ .iotlb_sync_map = msm_iommu_sync_map,
.iova_to_phys = msm_iommu_iova_to_phys,
.probe_device = msm_iommu_probe_device,
.release_device = msm_iommu_release_device,
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 8e56cec532e7..0ad14a7604b1 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -3,10 +3,12 @@
* Copyright (c) 2015-2016 MediaTek Inc.
* Author: Yong Wu <yong.wu@mediatek.com>
*/
+#include <linux/bitfield.h>
#include <linux/bug.h>
#include <linux/clk.h>
#include <linux/component.h>
#include <linux/device.h>
+#include <linux/dma-direct.h>
#include <linux/dma-iommu.h>
#include <linux/err.h>
#include <linux/interrupt.h>
@@ -20,6 +22,7 @@
#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
@@ -88,6 +91,9 @@
#define F_REG_MMU1_FAULT_MASK GENMASK(13, 7)
#define REG_MMU0_FAULT_VA 0x13c
+#define F_MMU_INVAL_VA_31_12_MASK GENMASK(31, 12)
+#define F_MMU_INVAL_VA_34_32_MASK GENMASK(11, 9)
+#define F_MMU_INVAL_PA_34_32_MASK GENMASK(8, 6)
#define F_MMU_FAULT_VA_WRITE_BIT BIT(1)
#define F_MMU_FAULT_VA_LAYER_BIT BIT(0)
@@ -103,13 +109,6 @@
#define MTK_PROTECT_PA_ALIGN 256
-/*
- * Get the local arbiter ID and the portid within the larb arbiter
- * from mtk_m4u_id which is defined by MTK_M4U_ID.
- */
-#define MTK_M4U_TO_LARB(id) (((id) >> 5) & 0xf)
-#define MTK_M4U_TO_PORT(id) ((id) & 0x1f)
-
#define HAS_4GB_MODE BIT(0)
/* HW will use the EMI clock if there isn't the "bclk". */
#define HAS_BCLK BIT(1)
@@ -119,6 +118,7 @@
#define HAS_SUB_COMM BIT(5)
#define WR_THROT_EN BIT(6)
#define HAS_LEGACY_IVRP_PADDR BIT(7)
+#define IOVA_34_EN BIT(8)
#define MTK_IOMMU_HAS_FLAG(pdata, _x) \
((((pdata)->flags) & (_x)) == (_x))
@@ -127,11 +127,19 @@ struct mtk_iommu_domain {
struct io_pgtable_cfg cfg;
struct io_pgtable_ops *iop;
+ struct mtk_iommu_data *data;
struct iommu_domain domain;
};
static const struct iommu_ops mtk_iommu_ops;
+static int mtk_iommu_hw_init(const struct mtk_iommu_data *data);
+
+#define MTK_IOMMU_TLB_ADDR(iova) ({ \
+ dma_addr_t _addr = iova; \
+ ((lower_32_bits(_addr) & GENMASK(31, 12)) | upper_32_bits(_addr));\
+})
+
/*
* In M4U 4GB mode, the physical address is remapped as below:
*
@@ -160,6 +168,25 @@ static LIST_HEAD(m4ulist); /* List all the M4U HWs */
#define for_each_m4u(data) list_for_each_entry(data, &m4ulist, list)
+struct mtk_iommu_iova_region {
+ dma_addr_t iova_base;
+ unsigned long long size;
+};
+
+static const struct mtk_iommu_iova_region single_domain[] = {
+ {.iova_base = 0, .size = SZ_4G},
+};
+
+static const struct mtk_iommu_iova_region mt8192_multi_dom[] = {
+ { .iova_base = 0x0, .size = SZ_4G}, /* disp: 0 ~ 4G */
+ #if IS_ENABLED(CONFIG_ARCH_DMA_ADDR_T_64BIT)
+ { .iova_base = SZ_4G, .size = SZ_4G}, /* vdec: 4G ~ 8G */
+ { .iova_base = SZ_4G * 2, .size = SZ_4G}, /* CAM/MDP: 8G ~ 12G */
+ { .iova_base = 0x240000000ULL, .size = 0x4000000}, /* CCU0 */
+ { .iova_base = 0x244000000ULL, .size = 0x4000000}, /* CCU1 */
+ #endif
+};
+
/*
* There may be 1 or 2 M4U HWs, But we always expect they are in the same domain
* for the performance.
@@ -182,33 +209,43 @@ static struct mtk_iommu_domain *to_mtk_domain(struct iommu_domain *dom)
return container_of(dom, struct mtk_iommu_domain, domain);
}
-static void mtk_iommu_tlb_flush_all(void *cookie)
+static void mtk_iommu_tlb_flush_all(struct mtk_iommu_data *data)
{
- struct mtk_iommu_data *data = cookie;
-
for_each_m4u(data) {
+ if (pm_runtime_get_if_in_use(data->dev) <= 0)
+ continue;
+
writel_relaxed(F_INVLD_EN1 | F_INVLD_EN0,
data->base + data->plat_data->inv_sel_reg);
writel_relaxed(F_ALL_INVLD, data->base + REG_MMU_INVALIDATE);
wmb(); /* Make sure the tlb flush all done */
+
+ pm_runtime_put(data->dev);
}
}
static void mtk_iommu_tlb_flush_range_sync(unsigned long iova, size_t size,
- size_t granule, void *cookie)
+ size_t granule,
+ struct mtk_iommu_data *data)
{
- struct mtk_iommu_data *data = cookie;
+ bool has_pm = !!data->dev->pm_domain;
unsigned long flags;
int ret;
u32 tmp;
for_each_m4u(data) {
+ if (has_pm) {
+ if (pm_runtime_get_if_in_use(data->dev) <= 0)
+ continue;
+ }
+
spin_lock_irqsave(&data->tlb_lock, flags);
writel_relaxed(F_INVLD_EN1 | F_INVLD_EN0,
data->base + data->plat_data->inv_sel_reg);
- writel_relaxed(iova, data->base + REG_MMU_INVLD_START_A);
- writel_relaxed(iova + size - 1,
+ writel_relaxed(MTK_IOMMU_TLB_ADDR(iova),
+ data->base + REG_MMU_INVLD_START_A);
+ writel_relaxed(MTK_IOMMU_TLB_ADDR(iova + size - 1),
data->base + REG_MMU_INVLD_END_A);
writel_relaxed(F_MMU_INV_RANGE,
data->base + REG_MMU_INVALIDATE);
@@ -219,36 +256,24 @@ static void mtk_iommu_tlb_flush_range_sync(unsigned long iova, size_t size,
if (ret) {
dev_warn(data->dev,
"Partial TLB flush timed out, falling back to full flush\n");
- mtk_iommu_tlb_flush_all(cookie);
+ mtk_iommu_tlb_flush_all(data);
}
/* Clear the CPE status */
writel_relaxed(0, data->base + REG_MMU_CPE_DONE);
spin_unlock_irqrestore(&data->tlb_lock, flags);
- }
-}
-
-static void mtk_iommu_tlb_flush_page_nosync(struct iommu_iotlb_gather *gather,
- unsigned long iova, size_t granule,
- void *cookie)
-{
- struct mtk_iommu_data *data = cookie;
- struct iommu_domain *domain = &data->m4u_dom->domain;
- iommu_iotlb_gather_add_page(domain, gather, iova, granule);
+ if (has_pm)
+ pm_runtime_put(data->dev);
+ }
}
-static const struct iommu_flush_ops mtk_iommu_flush_ops = {
- .tlb_flush_all = mtk_iommu_tlb_flush_all,
- .tlb_flush_walk = mtk_iommu_tlb_flush_range_sync,
- .tlb_add_page = mtk_iommu_tlb_flush_page_nosync,
-};
-
static irqreturn_t mtk_iommu_isr(int irq, void *dev_id)
{
struct mtk_iommu_data *data = dev_id;
struct mtk_iommu_domain *dom = data->m4u_dom;
- u32 int_state, regval, fault_iova, fault_pa;
unsigned int fault_larb, fault_port, sub_comm = 0;
+ u32 int_state, regval, va34_32, pa34_32;
+ u64 fault_iova, fault_pa;
bool layer, write;
/* Read error info from registers */
@@ -264,6 +289,14 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id)
}
layer = fault_iova & F_MMU_FAULT_VA_LAYER_BIT;
write = fault_iova & F_MMU_FAULT_VA_WRITE_BIT;
+ if (MTK_IOMMU_HAS_FLAG(data->plat_data, IOVA_34_EN)) {
+ va34_32 = FIELD_GET(F_MMU_INVAL_VA_34_32_MASK, fault_iova);
+ pa34_32 = FIELD_GET(F_MMU_INVAL_PA_34_32_MASK, fault_iova);
+ fault_iova = fault_iova & F_MMU_INVAL_VA_31_12_MASK;
+ fault_iova |= (u64)va34_32 << 32;
+ fault_pa |= (u64)pa34_32 << 32;
+ }
+
fault_port = F_MMU_INT_ID_PORT_ID(regval);
if (MTK_IOMMU_HAS_FLAG(data->plat_data, HAS_SUB_COMM)) {
fault_larb = F_MMU_INT_ID_COMM_ID(regval);
@@ -277,7 +310,7 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id)
write ? IOMMU_FAULT_WRITE : IOMMU_FAULT_READ)) {
dev_err_ratelimited(
data->dev,
- "fault type=0x%x iova=0x%x pa=0x%x larb=%d port=%d layer=%d %s\n",
+ "fault type=0x%x iova=0x%llx pa=0x%llx larb=%d port=%d layer=%d %s\n",
int_state, fault_iova, fault_pa, fault_larb, fault_port,
layer, write ? "write" : "read");
}
@@ -292,21 +325,57 @@ static irqreturn_t mtk_iommu_isr(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static void mtk_iommu_config(struct mtk_iommu_data *data,
- struct device *dev, bool enable)
+static int mtk_iommu_get_domain_id(struct device *dev,
+ const struct mtk_iommu_plat_data *plat_data)
+{
+ const struct mtk_iommu_iova_region *rgn = plat_data->iova_region;
+ const struct bus_dma_region *dma_rgn = dev->dma_range_map;
+ int i, candidate = -1;
+ dma_addr_t dma_end;
+
+ if (!dma_rgn || plat_data->iova_region_nr == 1)
+ return 0;
+
+ dma_end = dma_rgn->dma_start + dma_rgn->size - 1;
+ for (i = 0; i < plat_data->iova_region_nr; i++, rgn++) {
+ /* Best fit. */
+ if (dma_rgn->dma_start == rgn->iova_base &&
+ dma_end == rgn->iova_base + rgn->size - 1)
+ return i;
+ /* ok if it is inside this region. */
+ if (dma_rgn->dma_start >= rgn->iova_base &&
+ dma_end < rgn->iova_base + rgn->size)
+ candidate = i;
+ }
+
+ if (candidate >= 0)
+ return candidate;
+ dev_err(dev, "Can NOT find the iommu domain id(%pad 0x%llx).\n",
+ &dma_rgn->dma_start, dma_rgn->size);
+ return -EINVAL;
+}
+
+static void mtk_iommu_config(struct mtk_iommu_data *data, struct device *dev,
+ bool enable, unsigned int domid)
{
struct mtk_smi_larb_iommu *larb_mmu;
unsigned int larbid, portid;
struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
+ const struct mtk_iommu_iova_region *region;
int i;
for (i = 0; i < fwspec->num_ids; ++i) {
larbid = MTK_M4U_TO_LARB(fwspec->ids[i]);
portid = MTK_M4U_TO_PORT(fwspec->ids[i]);
+
larb_mmu = &data->larb_imu[larbid];
- dev_dbg(dev, "%s iommu port: %d\n",
- enable ? "enable" : "disable", portid);
+ region = data->plat_data->iova_region + domid;
+ larb_mmu->bank[portid] = upper_32_bits(region->iova_base);
+
+ dev_dbg(dev, "%s iommu for larb(%s) port %d dom %d bank %d.\n",
+ enable ? "enable" : "disable", dev_name(larb_mmu->dev),
+ portid, domid, larb_mmu->bank[portid]);
if (enable)
larb_mmu->mmu |= MTK_SMI_MMU_EN(portid);
@@ -315,22 +384,34 @@ static void mtk_iommu_config(struct mtk_iommu_data *data,
}
}
-static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom)
+static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom,
+ struct mtk_iommu_data *data,
+ unsigned int domid)
{
- struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
+ const struct mtk_iommu_iova_region *region;
+
+ /* Use the exist domain as there is only one pgtable here. */
+ if (data->m4u_dom) {
+ dom->iop = data->m4u_dom->iop;
+ dom->cfg = data->m4u_dom->cfg;
+ dom->domain.pgsize_bitmap = data->m4u_dom->cfg.pgsize_bitmap;
+ goto update_iova_region;
+ }
dom->cfg = (struct io_pgtable_cfg) {
.quirks = IO_PGTABLE_QUIRK_ARM_NS |
IO_PGTABLE_QUIRK_NO_PERMS |
- IO_PGTABLE_QUIRK_TLBI_ON_MAP |
IO_PGTABLE_QUIRK_ARM_MTK_EXT,
.pgsize_bitmap = mtk_iommu_ops.pgsize_bitmap,
- .ias = 32,
- .oas = 34,
- .tlb = &mtk_iommu_flush_ops,
+ .ias = MTK_IOMMU_HAS_FLAG(data->plat_data, IOVA_34_EN) ? 34 : 32,
.iommu_dev = data->dev,
};
+ if (MTK_IOMMU_HAS_FLAG(data->plat_data, HAS_4GB_MODE))
+ dom->cfg.oas = data->enable_4GB ? 33 : 32;
+ else
+ dom->cfg.oas = 35;
+
dom->iop = alloc_io_pgtable_ops(ARM_V7S, &dom->cfg, data);
if (!dom->iop) {
dev_err(data->dev, "Failed to alloc io pgtable\n");
@@ -339,6 +420,13 @@ static int mtk_iommu_domain_finalise(struct mtk_iommu_domain *dom)
/* Update our support page sizes bitmap */
dom->domain.pgsize_bitmap = dom->cfg.pgsize_bitmap;
+
+update_iova_region:
+ /* Update the iova region for this domain */
+ region = data->plat_data->iova_region + domid;
+ dom->domain.geometry.aperture_start = region->iova_base;
+ dom->domain.geometry.aperture_end = region->iova_base + region->size - 1;
+ dom->domain.geometry.force_aperture = true;
return 0;
}
@@ -353,30 +441,16 @@ static struct iommu_domain *mtk_iommu_domain_alloc(unsigned type)
if (!dom)
return NULL;
- if (iommu_get_dma_cookie(&dom->domain))
- goto free_dom;
-
- if (mtk_iommu_domain_finalise(dom))
- goto put_dma_cookie;
-
- dom->domain.geometry.aperture_start = 0;
- dom->domain.geometry.aperture_end = DMA_BIT_MASK(32);
- dom->domain.geometry.force_aperture = true;
+ if (iommu_get_dma_cookie(&dom->domain)) {
+ kfree(dom);
+ return NULL;
+ }
return &dom->domain;
-
-put_dma_cookie:
- iommu_put_dma_cookie(&dom->domain);
-free_dom:
- kfree(dom);
- return NULL;
}
static void mtk_iommu_domain_free(struct iommu_domain *domain)
{
- struct mtk_iommu_domain *dom = to_mtk_domain(domain);
-
- free_io_pgtable_ops(dom->iop);
iommu_put_dma_cookie(domain);
kfree(to_mtk_domain(domain));
}
@@ -386,18 +460,37 @@ static int mtk_iommu_attach_device(struct iommu_domain *domain,
{
struct mtk_iommu_data *data = dev_iommu_priv_get(dev);
struct mtk_iommu_domain *dom = to_mtk_domain(domain);
+ struct device *m4udev = data->dev;
+ int ret, domid;
- if (!data)
- return -ENODEV;
+ domid = mtk_iommu_get_domain_id(dev, data->plat_data);
+ if (domid < 0)
+ return domid;
+
+ if (!dom->data) {
+ if (mtk_iommu_domain_finalise(dom, data, domid))
+ return -ENODEV;
+ dom->data = data;
+ }
+
+ if (!data->m4u_dom) { /* Initialize the M4U HW */
+ ret = pm_runtime_resume_and_get(m4udev);
+ if (ret < 0)
+ return ret;
- /* Update the pgtable base address register of the M4U HW */
- if (!data->m4u_dom) {
+ ret = mtk_iommu_hw_init(data);
+ if (ret) {
+ pm_runtime_put(m4udev);
+ return ret;
+ }
data->m4u_dom = dom;
writel(dom->cfg.arm_v7s_cfg.ttbr & MMU_PT_ADDR_MASK,
data->base + REG_MMU_PT_BASE_ADDR);
+
+ pm_runtime_put(m4udev);
}
- mtk_iommu_config(data, dev, true);
+ mtk_iommu_config(data, dev, true, domid);
return 0;
}
@@ -406,20 +499,16 @@ static void mtk_iommu_detach_device(struct iommu_domain *domain,
{
struct mtk_iommu_data *data = dev_iommu_priv_get(dev);
- if (!data)
- return;
-
- mtk_iommu_config(data, dev, false);
+ mtk_iommu_config(data, dev, false, 0);
}
static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova,
phys_addr_t paddr, size_t size, int prot, gfp_t gfp)
{
struct mtk_iommu_domain *dom = to_mtk_domain(domain);
- struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
/* The "4GB mode" M4U physically can not use the lower remap of Dram. */
- if (data->enable_4GB)
+ if (dom->data->enable_4GB)
paddr |= BIT_ULL(32);
/* Synchronize with the tlb_lock */
@@ -431,37 +520,48 @@ static size_t mtk_iommu_unmap(struct iommu_domain *domain,
struct iommu_iotlb_gather *gather)
{
struct mtk_iommu_domain *dom = to_mtk_domain(domain);
+ unsigned long end = iova + size - 1;
+ if (gather->start > iova)
+ gather->start = iova;
+ if (gather->end < end)
+ gather->end = end;
return dom->iop->unmap(dom->iop, iova, size, gather);
}
static void mtk_iommu_flush_iotlb_all(struct iommu_domain *domain)
{
- mtk_iommu_tlb_flush_all(mtk_iommu_get_m4u_data());
+ struct mtk_iommu_domain *dom = to_mtk_domain(domain);
+
+ mtk_iommu_tlb_flush_all(dom->data);
}
static void mtk_iommu_iotlb_sync(struct iommu_domain *domain,
struct iommu_iotlb_gather *gather)
{
- struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
- size_t length = gather->end - gather->start;
-
- if (gather->start == ULONG_MAX)
- return;
+ struct mtk_iommu_domain *dom = to_mtk_domain(domain);
+ size_t length = gather->end - gather->start + 1;
mtk_iommu_tlb_flush_range_sync(gather->start, length, gather->pgsize,
- data);
+ dom->data);
+}
+
+static void mtk_iommu_sync_map(struct iommu_domain *domain, unsigned long iova,
+ size_t size)
+{
+ struct mtk_iommu_domain *dom = to_mtk_domain(domain);
+
+ mtk_iommu_tlb_flush_range_sync(iova, size, size, dom->data);
}
static phys_addr_t mtk_iommu_iova_to_phys(struct iommu_domain *domain,
dma_addr_t iova)
{
struct mtk_iommu_domain *dom = to_mtk_domain(domain);
- struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
phys_addr_t pa;
pa = dom->iop->iova_to_phys(dom->iop, iova);
- if (data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE)
+ if (dom->data->enable_4GB && pa >= MTK_IOMMU_4GB_MODE_REMAP_BASE)
pa &= ~BIT_ULL(32);
return pa;
@@ -493,19 +593,25 @@ static void mtk_iommu_release_device(struct device *dev)
static struct iommu_group *mtk_iommu_device_group(struct device *dev)
{
struct mtk_iommu_data *data = mtk_iommu_get_m4u_data();
+ struct iommu_group *group;
+ int domid;
if (!data)
return ERR_PTR(-ENODEV);
- /* All the client devices are in the same m4u iommu-group */
- if (!data->m4u_group) {
- data->m4u_group = iommu_group_alloc();
- if (IS_ERR(data->m4u_group))
- dev_err(dev, "Failed to allocate M4U IOMMU group\n");
+ domid = mtk_iommu_get_domain_id(dev, data->plat_data);
+ if (domid < 0)
+ return ERR_PTR(domid);
+
+ group = data->m4u_group[domid];
+ if (!group) {
+ group = iommu_group_alloc();
+ if (!IS_ERR(group))
+ data->m4u_group[domid] = group;
} else {
- iommu_group_ref_get(data->m4u_group);
+ iommu_group_ref_get(group);
}
- return data->m4u_group;
+ return group;
}
static int mtk_iommu_of_xlate(struct device *dev, struct of_phandle_args *args)
@@ -530,6 +636,35 @@ static int mtk_iommu_of_xlate(struct device *dev, struct of_phandle_args *args)
return iommu_fwspec_add_ids(dev, args->args, 1);
}
+static void mtk_iommu_get_resv_regions(struct device *dev,
+ struct list_head *head)
+{
+ struct mtk_iommu_data *data = dev_iommu_priv_get(dev);
+ unsigned int domid = mtk_iommu_get_domain_id(dev, data->plat_data), i;
+ const struct mtk_iommu_iova_region *resv, *curdom;
+ struct iommu_resv_region *region;
+ int prot = IOMMU_WRITE | IOMMU_READ;
+
+ if (domid < 0)
+ return;
+ curdom = data->plat_data->iova_region + domid;
+ for (i = 0; i < data->plat_data->iova_region_nr; i++) {
+ resv = data->plat_data->iova_region + i;
+
+ /* Only reserve when the region is inside the current domain */
+ if (resv->iova_base <= curdom->iova_base ||
+ resv->iova_base + resv->size >= curdom->iova_base + curdom->size)
+ continue;
+
+ region = iommu_alloc_resv_region(resv->iova_base, resv->size,
+ prot, IOMMU_RESV_RESERVED);
+ if (!region)
+ return;
+
+ list_add_tail(&region->list, head);
+ }
+}
+
static const struct iommu_ops mtk_iommu_ops = {
.domain_alloc = mtk_iommu_domain_alloc,
.domain_free = mtk_iommu_domain_free,
@@ -539,11 +674,14 @@ static const struct iommu_ops mtk_iommu_ops = {
.unmap = mtk_iommu_unmap,
.flush_iotlb_all = mtk_iommu_flush_iotlb_all,
.iotlb_sync = mtk_iommu_iotlb_sync,
+ .iotlb_sync_map = mtk_iommu_sync_map,
.iova_to_phys = mtk_iommu_iova_to_phys,
.probe_device = mtk_iommu_probe_device,
.release_device = mtk_iommu_release_device,
.device_group = mtk_iommu_device_group,
.of_xlate = mtk_iommu_of_xlate,
+ .get_resv_regions = mtk_iommu_get_resv_regions,
+ .put_resv_regions = generic_iommu_put_resv_regions,
.pgsize_bitmap = SZ_4K | SZ_64K | SZ_1M | SZ_16M,
};
@@ -639,6 +777,9 @@ static int mtk_iommu_probe(struct platform_device *pdev)
{
struct mtk_iommu_data *data;
struct device *dev = &pdev->dev;
+ struct device_node *larbnode, *smicomm_node;
+ struct platform_device *plarbdev;
+ struct device_link *link;
struct resource *res;
resource_size_t ioaddr;
struct component_match *match = NULL;
@@ -705,8 +846,6 @@ static int mtk_iommu_probe(struct platform_device *pdev)
return larb_nr;
for (i = 0; i < larb_nr; i++) {
- struct device_node *larbnode;
- struct platform_device *plarbdev;
u32 id;
larbnode = of_parse_phandle(dev->of_node, "mediatek,larbs", i);
@@ -733,31 +872,64 @@ static int mtk_iommu_probe(struct platform_device *pdev)
compare_of, larbnode);
}
- platform_set_drvdata(pdev, data);
+ /* Get smi-common dev from the last larb. */
+ smicomm_node = of_parse_phandle(larbnode, "mediatek,smi", 0);
+ if (!smicomm_node)
+ return -EINVAL;
- ret = mtk_iommu_hw_init(data);
- if (ret)
- return ret;
+ plarbdev = of_find_device_by_node(smicomm_node);
+ of_node_put(smicomm_node);
+ data->smicomm_dev = &plarbdev->dev;
+
+ pm_runtime_enable(dev);
+
+ link = device_link_add(data->smicomm_dev, dev,
+ DL_FLAG_STATELESS | DL_FLAG_PM_RUNTIME);
+ if (!link) {
+ dev_err(dev, "Unable link %s.\n", dev_name(data->smicomm_dev));
+ goto out_runtime_disable;
+ }
+
+ platform_set_drvdata(pdev, data);
ret = iommu_device_sysfs_add(&data->iommu, dev, NULL,
"mtk-iommu.%pa", &ioaddr);
if (ret)
- return ret;
+ goto out_link_remove;
iommu_device_set_ops(&data->iommu, &mtk_iommu_ops);
iommu_device_set_fwnode(&data->iommu, &pdev->dev.of_node->fwnode);
ret = iommu_device_register(&data->iommu);
if (ret)
- return ret;
+ goto out_sysfs_remove;
spin_lock_init(&data->tlb_lock);
list_add_tail(&data->list, &m4ulist);
- if (!iommu_present(&platform_bus_type))
- bus_set_iommu(&platform_bus_type, &mtk_iommu_ops);
+ if (!iommu_present(&platform_bus_type)) {
+ ret = bus_set_iommu(&platform_bus_type, &mtk_iommu_ops);
+ if (ret)
+ goto out_list_del;
+ }
- return component_master_add_with_match(dev, &mtk_iommu_com_ops, match);
+ ret = component_master_add_with_match(dev, &mtk_iommu_com_ops, match);
+ if (ret)
+ goto out_bus_set_null;
+ return ret;
+
+out_bus_set_null:
+ bus_set_iommu(&platform_bus_type, NULL);
+out_list_del:
+ list_del(&data->list);
+ iommu_device_unregister(&data->iommu);
+out_sysfs_remove:
+ iommu_device_sysfs_remove(&data->iommu);
+out_link_remove:
+ device_link_remove(data->smicomm_dev, dev);
+out_runtime_disable:
+ pm_runtime_disable(dev);
+ return ret;
}
static int mtk_iommu_remove(struct platform_device *pdev)
@@ -771,12 +943,14 @@ static int mtk_iommu_remove(struct platform_device *pdev)
bus_set_iommu(&platform_bus_type, NULL);
clk_disable_unprepare(data->bclk);
+ device_link_remove(data->smicomm_dev, &pdev->dev);
+ pm_runtime_disable(&pdev->dev);
devm_free_irq(&pdev->dev, data->irq, data);
component_master_del(&pdev->dev, &mtk_iommu_com_ops);
return 0;
}
-static int __maybe_unused mtk_iommu_suspend(struct device *dev)
+static int __maybe_unused mtk_iommu_runtime_suspend(struct device *dev)
{
struct mtk_iommu_data *data = dev_get_drvdata(dev);
struct mtk_iommu_suspend_reg *reg = &data->reg;
@@ -794,7 +968,7 @@ static int __maybe_unused mtk_iommu_suspend(struct device *dev)
return 0;
}
-static int __maybe_unused mtk_iommu_resume(struct device *dev)
+static int __maybe_unused mtk_iommu_runtime_resume(struct device *dev)
{
struct mtk_iommu_data *data = dev_get_drvdata(dev);
struct mtk_iommu_suspend_reg *reg = &data->reg;
@@ -802,6 +976,9 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev)
void __iomem *base = data->base;
int ret;
+ /* Avoid first resume to affect the default value of registers below. */
+ if (!m4u_dom)
+ return 0;
ret = clk_prepare_enable(data->bclk);
if (ret) {
dev_err(data->dev, "Failed to enable clk(%d) in resume\n", ret);
@@ -815,20 +992,22 @@ static int __maybe_unused mtk_iommu_resume(struct device *dev)
writel_relaxed(reg->int_main_control, base + REG_MMU_INT_MAIN_CONTROL);
writel_relaxed(reg->ivrp_paddr, base + REG_MMU_IVRP_PADDR);
writel_relaxed(reg->vld_pa_rng, base + REG_MMU_VLD_PA_RNG);
- if (m4u_dom)
- writel(m4u_dom->cfg.arm_v7s_cfg.ttbr & MMU_PT_ADDR_MASK,
- base + REG_MMU_PT_BASE_ADDR);
+ writel(m4u_dom->cfg.arm_v7s_cfg.ttbr & MMU_PT_ADDR_MASK, base + REG_MMU_PT_BASE_ADDR);
return 0;
}
static const struct dev_pm_ops mtk_iommu_pm_ops = {
- SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_iommu_suspend, mtk_iommu_resume)
+ SET_RUNTIME_PM_OPS(mtk_iommu_runtime_suspend, mtk_iommu_runtime_resume, NULL)
+ SET_LATE_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+ pm_runtime_force_resume)
};
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}},
};
@@ -836,6 +1015,8 @@ 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}},
};
@@ -843,6 +1024,8 @@ static const struct mtk_iommu_plat_data mt8167_data = {
.m4u_plat = M4U_MT8167,
.flags = RESET_AXI | HAS_LEGACY_IVRP_PADDR,
.inv_sel_reg = REG_MMU_INV_SEL_GEN1,
+ .iova_region = single_domain,
+ .iova_region_nr = ARRAY_SIZE(single_domain),
.larbid_remap = {{0}, {1}, {2}}, /* Linear mapping. */
};
@@ -851,6 +1034,8 @@ static const struct mtk_iommu_plat_data mt8173_data = {
.flags = HAS_4GB_MODE | HAS_BCLK | RESET_AXI |
HAS_LEGACY_IVRP_PADDR,
.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. */
};
@@ -858,15 +1043,29 @@ 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}},
};
+static const struct mtk_iommu_plat_data mt8192_data = {
+ .m4u_plat = M4U_MT8192,
+ .flags = HAS_BCLK | HAS_SUB_COMM | OUT_ORDER_WR_EN |
+ WR_THROT_EN | IOVA_34_EN,
+ .inv_sel_reg = REG_MMU_INV_SEL_GEN2,
+ .iova_region = mt8192_multi_dom,
+ .iova_region_nr = ARRAY_SIZE(mt8192_multi_dom),
+ .larbid_remap = {{0}, {1}, {4, 5}, {7}, {2}, {9, 11, 19, 20},
+ {0, 14, 16}, {0, 13, 18, 17}},
+};
+
static const struct of_device_id mtk_iommu_of_ids[] = {
{ .compatible = "mediatek,mt2712-m4u", .data = &mt2712_data},
{ .compatible = "mediatek,mt6779-m4u", .data = &mt6779_data},
{ .compatible = "mediatek,mt8167-m4u", .data = &mt8167_data},
{ .compatible = "mediatek,mt8173-m4u", .data = &mt8173_data},
{ .compatible = "mediatek,mt8183-m4u", .data = &mt8183_data},
+ { .compatible = "mediatek,mt8192-m4u", .data = &mt8192_data},
{}
};
diff --git a/drivers/iommu/mtk_iommu.h b/drivers/iommu/mtk_iommu.h
index df32b3e3408b..f81fa8862ed0 100644
--- a/drivers/iommu/mtk_iommu.h
+++ b/drivers/iommu/mtk_iommu.h
@@ -17,10 +17,13 @@
#include <linux/spinlock.h>
#include <linux/dma-mapping.h>
#include <soc/mediatek/smi.h>
+#include <dt-bindings/memory/mtk-memory-port.h>
#define MTK_LARB_COM_MAX 8
#define MTK_LARB_SUBCOM_MAX 4
+#define MTK_IOMMU_GROUP_MAX 8
+
struct mtk_iommu_suspend_reg {
union {
u32 standard_axi_mode;/* v1 */
@@ -42,12 +45,18 @@ enum mtk_iommu_plat {
M4U_MT8167,
M4U_MT8173,
M4U_MT8183,
+ M4U_MT8192,
};
+struct mtk_iommu_iova_region;
+
struct mtk_iommu_plat_data {
enum mtk_iommu_plat m4u_plat;
u32 flags;
u32 inv_sel_reg;
+
+ unsigned int iova_region_nr;
+ const struct mtk_iommu_iova_region *iova_region;
unsigned char larbid_remap[MTK_LARB_COM_MAX][MTK_LARB_SUBCOM_MAX];
};
@@ -61,12 +70,13 @@ struct mtk_iommu_data {
phys_addr_t protect_base; /* protect memory base */
struct mtk_iommu_suspend_reg reg;
struct mtk_iommu_domain *m4u_dom;
- struct iommu_group *m4u_group;
+ struct iommu_group *m4u_group[MTK_IOMMU_GROUP_MAX];
bool enable_4GB;
spinlock_t tlb_lock; /* lock for tlb range flush */
struct iommu_device iommu;
const struct mtk_iommu_plat_data *plat_data;
+ struct device *smicomm_dev;
struct dma_iommu_mapping *mapping; /* For mtk_iommu_v1.c */
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index fac720273889..6f130e51f072 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -261,7 +261,8 @@ static int gart_iommu_of_xlate(struct device *dev,
return 0;
}
-static void gart_iommu_sync_map(struct iommu_domain *domain)
+static void gart_iommu_sync_map(struct iommu_domain *domain, unsigned long iova,
+ size_t size)
{
FLUSH_GART_REGS(gart_handle);
}
@@ -269,7 +270,9 @@ static void gart_iommu_sync_map(struct iommu_domain *domain)
static void gart_iommu_sync(struct iommu_domain *domain,
struct iommu_iotlb_gather *gather)
{
- gart_iommu_sync_map(domain);
+ size_t length = gather->end - gather->start + 1;
+
+ gart_iommu_sync_map(domain, gather->start, length);
}
static const struct iommu_ops gart_iommu_ops = {
diff --git a/drivers/memory/mtk-smi.c b/drivers/memory/mtk-smi.c
index ac350f8d1e20..fae61c5fbd70 100644
--- a/drivers/memory/mtk-smi.c
+++ b/drivers/memory/mtk-smi.c
@@ -15,6 +15,7 @@
#include <linux/pm_runtime.h>
#include <soc/mediatek/smi.h>
#include <dt-bindings/memory/mt2701-larb-port.h>
+#include <dt-bindings/memory/mtk-memory-port.h>
/* mt8173 */
#define SMI_LARB_MMU_EN 0xf00
@@ -43,6 +44,10 @@
/* mt2712 */
#define SMI_LARB_NONSEC_CON(id) (0x380 + ((id) * 4))
#define F_MMU_EN BIT(0)
+#define BANK_SEL(id) ({ \
+ u32 _id = (id) & 0x3; \
+ (_id << 8 | _id << 10 | _id << 12 | _id << 14); \
+})
/* SMI COMMON */
#define SMI_BUS_SEL 0x220
@@ -87,6 +92,7 @@ struct mtk_smi_larb { /* larb: local arbiter */
const struct mtk_smi_larb_gen *larb_gen;
int larbid;
u32 *mmu;
+ unsigned char *bank;
};
static int mtk_smi_clk_enable(const struct mtk_smi *smi)
@@ -153,6 +159,7 @@ mtk_smi_larb_bind(struct device *dev, struct device *master, void *data)
if (dev == larb_mmu[i].dev) {
larb->larbid = i;
larb->mmu = &larb_mmu[i].mmu;
+ larb->bank = larb_mmu[i].bank;
return 0;
}
}
@@ -171,6 +178,7 @@ static void mtk_smi_larb_config_port_gen2_general(struct device *dev)
for_each_set_bit(i, (unsigned long *)larb->mmu, 32) {
reg = readl_relaxed(larb->base + SMI_LARB_NONSEC_CON(i));
reg |= F_MMU_EN;
+ reg |= BANK_SEL(larb->bank[i]);
writel(reg, larb->base + SMI_LARB_NONSEC_CON(i));
}
}
diff --git a/include/dt-bindings/memory/mt2701-larb-port.h b/include/dt-bindings/memory/mt2701-larb-port.h
index 2d85c2ec6cfd..25d03526f142 100644
--- a/include/dt-bindings/memory/mt2701-larb-port.h
+++ b/include/dt-bindings/memory/mt2701-larb-port.h
@@ -4,8 +4,8 @@
* Author: Honghui Zhang <honghui.zhang@mediatek.com>
*/
-#ifndef _MT2701_LARB_PORT_H_
-#define _MT2701_LARB_PORT_H_
+#ifndef _DT_BINDINGS_MEMORY_MT2701_LARB_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT2701_LARB_PORT_H_
/*
* Mediatek m4u generation 1 such as mt2701 has flat m4u port numbers,
diff --git a/include/dt-bindings/memory/mt2712-larb-port.h b/include/dt-bindings/memory/mt2712-larb-port.h
index 6f9aa7349cef..e41a2841bcff 100644
--- a/include/dt-bindings/memory/mt2712-larb-port.h
+++ b/include/dt-bindings/memory/mt2712-larb-port.h
@@ -3,10 +3,10 @@
* Copyright (c) 2017 MediaTek Inc.
* Author: Yong Wu <yong.wu@mediatek.com>
*/
-#ifndef __DTS_IOMMU_PORT_MT2712_H
-#define __DTS_IOMMU_PORT_MT2712_H
+#ifndef _DT_BINDINGS_MEMORY_MT2712_LARB_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT2712_LARB_PORT_H_
-#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
#define M4U_LARB0_ID 0
#define M4U_LARB1_ID 1
diff --git a/include/dt-bindings/memory/mt6779-larb-port.h b/include/dt-bindings/memory/mt6779-larb-port.h
index 2ad0899fbf2f..3fb438a96e35 100644
--- a/include/dt-bindings/memory/mt6779-larb-port.h
+++ b/include/dt-bindings/memory/mt6779-larb-port.h
@@ -4,10 +4,10 @@
* Author: Chao Hao <chao.hao@mediatek.com>
*/
-#ifndef _DTS_IOMMU_PORT_MT6779_H_
-#define _DTS_IOMMU_PORT_MT6779_H_
+#ifndef _DT_BINDINGS_MEMORY_MT6779_LARB_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT6779_LARB_PORT_H_
-#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
#define M4U_LARB0_ID 0
#define M4U_LARB1_ID 1
diff --git a/include/dt-bindings/memory/mt8167-larb-port.h b/include/dt-bindings/memory/mt8167-larb-port.h
index 000fb299a408..aae57d4824ca 100644
--- a/include/dt-bindings/memory/mt8167-larb-port.h
+++ b/include/dt-bindings/memory/mt8167-larb-port.h
@@ -5,10 +5,10 @@
* Author: Honghui Zhang <honghui.zhang@mediatek.com>
* Author: Fabien Parent <fparent@baylibre.com>
*/
-#ifndef __DTS_IOMMU_PORT_MT8167_H
-#define __DTS_IOMMU_PORT_MT8167_H
+#ifndef _DT_BINDINGS_MEMORY_MT8167_LARB_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT8167_LARB_PORT_H_
-#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
#define M4U_LARB0_ID 0
#define M4U_LARB1_ID 1
diff --git a/include/dt-bindings/memory/mt8173-larb-port.h b/include/dt-bindings/memory/mt8173-larb-port.h
index 9f31ccfeca21..167a7fc51868 100644
--- a/include/dt-bindings/memory/mt8173-larb-port.h
+++ b/include/dt-bindings/memory/mt8173-larb-port.h
@@ -3,10 +3,10 @@
* Copyright (c) 2015-2016 MediaTek Inc.
* Author: Yong Wu <yong.wu@mediatek.com>
*/
-#ifndef __DTS_IOMMU_PORT_MT8173_H
-#define __DTS_IOMMU_PORT_MT8173_H
+#ifndef _DT_BINDINGS_MEMORY_MT8173_LARB_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT8173_LARB_PORT_H_
-#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
#define M4U_LARB0_ID 0
#define M4U_LARB1_ID 1
diff --git a/include/dt-bindings/memory/mt8183-larb-port.h b/include/dt-bindings/memory/mt8183-larb-port.h
index 2c579f305162..36abdf0ce5a2 100644
--- a/include/dt-bindings/memory/mt8183-larb-port.h
+++ b/include/dt-bindings/memory/mt8183-larb-port.h
@@ -3,10 +3,10 @@
* Copyright (c) 2018 MediaTek Inc.
* Author: Yong Wu <yong.wu@mediatek.com>
*/
-#ifndef __DTS_IOMMU_PORT_MT8183_H
-#define __DTS_IOMMU_PORT_MT8183_H
+#ifndef _DT_BINDINGS_MEMORY_MT8183_LARB_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT8183_LARB_PORT_H_
-#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port))
+#include <dt-bindings/memory/mtk-memory-port.h>
#define M4U_LARB0_ID 0
#define M4U_LARB1_ID 1
diff --git a/include/dt-bindings/memory/mt8192-larb-port.h b/include/dt-bindings/memory/mt8192-larb-port.h
new file mode 100644
index 000000000000..23035a52c675
--- /dev/null
+++ b/include/dt-bindings/memory/mt8192-larb-port.h
@@ -0,0 +1,243 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020 MediaTek Inc.
+ *
+ * Author: Chao Hao <chao.hao@mediatek.com>
+ * Author: Yong Wu <yong.wu@mediatek.com>
+ */
+#ifndef _DT_BINDINGS_MEMORY_MT8192_LARB_PORT_H_
+#define _DT_BINDINGS_MEMORY_MT8192_LARB_PORT_H_
+
+#include <dt-bindings/memory/mtk-memory-port.h>
+
+/*
+ * MM IOMMU supports 16GB dma address.
+ *
+ * The address will preassign like this:
+ *
+ * modules dma-address-region larbs-ports
+ * disp 0 ~ 4G larb0/1
+ * vcodec 4G ~ 8G larb4/5/7
+ * cam/mdp 8G ~ 12G larb2/9/11/13/14/16/17/18/19/20
+ * CCU0 0x4000_0000 ~ 0x43ff_ffff larb13: port 9/10
+ * CCU1 0x4400_0000 ~ 0x47ff_ffff larb14: port 4/5
+ *
+ * larb3/6/8/10/12/15 is null.
+ */
+
+/* larb0 */
+#define M4U_PORT_L0_DISP_POSTMASK0 MTK_M4U_ID(0, 0)
+#define M4U_PORT_L0_OVL_RDMA0_HDR MTK_M4U_ID(0, 1)
+#define M4U_PORT_L0_OVL_RDMA0 MTK_M4U_ID(0, 2)
+#define M4U_PORT_L0_DISP_RDMA0 MTK_M4U_ID(0, 3)
+#define M4U_PORT_L0_DISP_WDMA0 MTK_M4U_ID(0, 4)
+#define M4U_PORT_L0_DISP_FAKE0 MTK_M4U_ID(0, 5)
+
+/* larb1 */
+#define M4U_PORT_L1_OVL_2L_RDMA0_HDR MTK_M4U_ID(1, 0)
+#define M4U_PORT_L1_OVL_2L_RDMA2_HDR MTK_M4U_ID(1, 1)
+#define M4U_PORT_L1_OVL_2L_RDMA0 MTK_M4U_ID(1, 2)
+#define M4U_PORT_L1_OVL_2L_RDMA2 MTK_M4U_ID(1, 3)
+#define M4U_PORT_L1_DISP_MDP_RDMA4 MTK_M4U_ID(1, 4)
+#define M4U_PORT_L1_DISP_RDMA4 MTK_M4U_ID(1, 5)
+#define M4U_PORT_L1_DISP_UFBC_WDMA0 MTK_M4U_ID(1, 6)
+#define M4U_PORT_L1_DISP_FAKE1 MTK_M4U_ID(1, 7)
+
+/* larb2 */
+#define M4U_PORT_L2_MDP_RDMA0 MTK_M4U_ID(2, 0)
+#define M4U_PORT_L2_MDP_RDMA1 MTK_M4U_ID(2, 1)
+#define M4U_PORT_L2_MDP_WROT0 MTK_M4U_ID(2, 2)
+#define M4U_PORT_L2_MDP_WROT1 MTK_M4U_ID(2, 3)
+#define M4U_PORT_L2_MDP_DISP_FAKE0 MTK_M4U_ID(2, 4)
+
+/* larb3: null */
+
+/* larb4 */
+#define M4U_PORT_L4_VDEC_MC_EXT MTK_M4U_ID(4, 0)
+#define M4U_PORT_L4_VDEC_UFO_EXT MTK_M4U_ID(4, 1)
+#define M4U_PORT_L4_VDEC_PP_EXT MTK_M4U_ID(4, 2)
+#define M4U_PORT_L4_VDEC_PRED_RD_EXT MTK_M4U_ID(4, 3)
+#define M4U_PORT_L4_VDEC_PRED_WR_EXT MTK_M4U_ID(4, 4)
+#define M4U_PORT_L4_VDEC_PPWRAP_EXT MTK_M4U_ID(4, 5)
+#define M4U_PORT_L4_VDEC_TILE_EXT MTK_M4U_ID(4, 6)
+#define M4U_PORT_L4_VDEC_VLD_EXT MTK_M4U_ID(4, 7)
+#define M4U_PORT_L4_VDEC_VLD2_EXT MTK_M4U_ID(4, 8)
+#define M4U_PORT_L4_VDEC_AVC_MV_EXT MTK_M4U_ID(4, 9)
+#define M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT MTK_M4U_ID(4, 10)
+
+/* larb5 */
+#define M4U_PORT_L5_VDEC_LAT0_VLD_EXT MTK_M4U_ID(5, 0)
+#define M4U_PORT_L5_VDEC_LAT0_VLD2_EXT MTK_M4U_ID(5, 1)
+#define M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT MTK_M4U_ID(5, 2)
+#define M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT MTK_M4U_ID(5, 3)
+#define M4U_PORT_L5_VDEC_LAT0_TILE_EXT MTK_M4U_ID(5, 4)
+#define M4U_PORT_L5_VDEC_LAT0_WDMA_EXT MTK_M4U_ID(5, 5)
+#define M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT MTK_M4U_ID(5, 6)
+#define M4U_PORT_L5_VDEC_UFO_ENC_EXT MTK_M4U_ID(5, 7)
+
+/* larb6: null */
+
+/* larb7 */
+#define M4U_PORT_L7_VENC_RCPU MTK_M4U_ID(7, 0)
+#define M4U_PORT_L7_VENC_REC MTK_M4U_ID(7, 1)
+#define M4U_PORT_L7_VENC_BSDMA MTK_M4U_ID(7, 2)
+#define M4U_PORT_L7_VENC_SV_COMV MTK_M4U_ID(7, 3)
+#define M4U_PORT_L7_VENC_RD_COMV MTK_M4U_ID(7, 4)
+#define M4U_PORT_L7_VENC_CUR_LUMA MTK_M4U_ID(7, 5)
+#define M4U_PORT_L7_VENC_CUR_CHROMA MTK_M4U_ID(7, 6)
+#define M4U_PORT_L7_VENC_REF_LUMA MTK_M4U_ID(7, 7)
+#define M4U_PORT_L7_VENC_REF_CHROMA MTK_M4U_ID(7, 8)
+#define M4U_PORT_L7_JPGENC_Y_RDMA MTK_M4U_ID(7, 9)
+#define M4U_PORT_L7_JPGENC_Q_RDMA MTK_M4U_ID(7, 10)
+#define M4U_PORT_L7_JPGENC_C_TABLE MTK_M4U_ID(7, 11)
+#define M4U_PORT_L7_JPGENC_BSDMA MTK_M4U_ID(7, 12)
+#define M4U_PORT_L7_VENC_SUB_R_LUMA MTK_M4U_ID(7, 13)
+#define M4U_PORT_L7_VENC_SUB_W_LUMA MTK_M4U_ID(7, 14)
+
+/* larb8: null */
+
+/* larb9 */
+#define M4U_PORT_L9_IMG_IMGI_D1 MTK_M4U_ID(9, 0)
+#define M4U_PORT_L9_IMG_IMGBI_D1 MTK_M4U_ID(9, 1)
+#define M4U_PORT_L9_IMG_DMGI_D1 MTK_M4U_ID(9, 2)
+#define M4U_PORT_L9_IMG_DEPI_D1 MTK_M4U_ID(9, 3)
+#define M4U_PORT_L9_IMG_ICE_D1 MTK_M4U_ID(9, 4)
+#define M4U_PORT_L9_IMG_SMTI_D1 MTK_M4U_ID(9, 5)
+#define M4U_PORT_L9_IMG_SMTO_D2 MTK_M4U_ID(9, 6)
+#define M4U_PORT_L9_IMG_SMTO_D1 MTK_M4U_ID(9, 7)
+#define M4U_PORT_L9_IMG_CRZO_D1 MTK_M4U_ID(9, 8)
+#define M4U_PORT_L9_IMG_IMG3O_D1 MTK_M4U_ID(9, 9)
+#define M4U_PORT_L9_IMG_VIPI_D1 MTK_M4U_ID(9, 10)
+#define M4U_PORT_L9_IMG_SMTI_D5 MTK_M4U_ID(9, 11)
+#define M4U_PORT_L9_IMG_TIMGO_D1 MTK_M4U_ID(9, 12)
+#define M4U_PORT_L9_IMG_UFBC_W0 MTK_M4U_ID(9, 13)
+#define M4U_PORT_L9_IMG_UFBC_R0 MTK_M4U_ID(9, 14)
+
+/* larb10: null */
+
+/* larb11 */
+#define M4U_PORT_L11_IMG_IMGI_D1 MTK_M4U_ID(11, 0)
+#define M4U_PORT_L11_IMG_IMGBI_D1 MTK_M4U_ID(11, 1)
+#define M4U_PORT_L11_IMG_DMGI_D1 MTK_M4U_ID(11, 2)
+#define M4U_PORT_L11_IMG_DEPI_D1 MTK_M4U_ID(11, 3)
+#define M4U_PORT_L11_IMG_ICE_D1 MTK_M4U_ID(11, 4)
+#define M4U_PORT_L11_IMG_SMTI_D1 MTK_M4U_ID(11, 5)
+#define M4U_PORT_L11_IMG_SMTO_D2 MTK_M4U_ID(11, 6)
+#define M4U_PORT_L11_IMG_SMTO_D1 MTK_M4U_ID(11, 7)
+#define M4U_PORT_L11_IMG_CRZO_D1 MTK_M4U_ID(11, 8)
+#define M4U_PORT_L11_IMG_IMG3O_D1 MTK_M4U_ID(11, 9)
+#define M4U_PORT_L11_IMG_VIPI_D1 MTK_M4U_ID(11, 10)
+#define M4U_PORT_L11_IMG_SMTI_D5 MTK_M4U_ID(11, 11)
+#define M4U_PORT_L11_IMG_TIMGO_D1 MTK_M4U_ID(11, 12)
+#define M4U_PORT_L11_IMG_UFBC_W0 MTK_M4U_ID(11, 13)
+#define M4U_PORT_L11_IMG_UFBC_R0 MTK_M4U_ID(11, 14)
+#define M4U_PORT_L11_IMG_WPE_RDMA1 MTK_M4U_ID(11, 15)
+#define M4U_PORT_L11_IMG_WPE_RDMA0 MTK_M4U_ID(11, 16)
+#define M4U_PORT_L11_IMG_WPE_WDMA MTK_M4U_ID(11, 17)
+#define M4U_PORT_L11_IMG_MFB_RDMA0 MTK_M4U_ID(11, 18)
+#define M4U_PORT_L11_IMG_MFB_RDMA1 MTK_M4U_ID(11, 19)
+#define M4U_PORT_L11_IMG_MFB_RDMA2 MTK_M4U_ID(11, 20)
+#define M4U_PORT_L11_IMG_MFB_RDMA3 MTK_M4U_ID(11, 21)
+#define M4U_PORT_L11_IMG_MFB_RDMA4 MTK_M4U_ID(11, 22)
+#define M4U_PORT_L11_IMG_MFB_RDMA5 MTK_M4U_ID(11, 23)
+#define M4U_PORT_L11_IMG_MFB_WDMA0 MTK_M4U_ID(11, 24)
+#define M4U_PORT_L11_IMG_MFB_WDMA1 MTK_M4U_ID(11, 25)
+
+/* larb12: null */
+
+/* larb13 */
+#define M4U_PORT_L13_CAM_MRAWI MTK_M4U_ID(13, 0)
+#define M4U_PORT_L13_CAM_MRAWO0 MTK_M4U_ID(13, 1)
+#define M4U_PORT_L13_CAM_MRAWO1 MTK_M4U_ID(13, 2)
+#define M4U_PORT_L13_CAM_CAMSV1 MTK_M4U_ID(13, 3)
+#define M4U_PORT_L13_CAM_CAMSV2 MTK_M4U_ID(13, 4)
+#define M4U_PORT_L13_CAM_CAMSV3 MTK_M4U_ID(13, 5)
+#define M4U_PORT_L13_CAM_CAMSV4 MTK_M4U_ID(13, 6)
+#define M4U_PORT_L13_CAM_CAMSV5 MTK_M4U_ID(13, 7)
+#define M4U_PORT_L13_CAM_CAMSV6 MTK_M4U_ID(13, 8)
+#define M4U_PORT_L13_CAM_CCUI MTK_M4U_ID(13, 9)
+#define M4U_PORT_L13_CAM_CCUO MTK_M4U_ID(13, 10)
+#define M4U_PORT_L13_CAM_FAKE MTK_M4U_ID(13, 11)
+
+/* larb14 */
+#define M4U_PORT_L14_CAM_RESERVE1 MTK_M4U_ID(14, 0)
+#define M4U_PORT_L14_CAM_RESERVE2 MTK_M4U_ID(14, 1)
+#define M4U_PORT_L14_CAM_RESERVE3 MTK_M4U_ID(14, 2)
+#define M4U_PORT_L14_CAM_CAMSV0 MTK_M4U_ID(14, 3)
+#define M4U_PORT_L14_CAM_CCUI MTK_M4U_ID(14, 4)
+#define M4U_PORT_L14_CAM_CCUO MTK_M4U_ID(14, 5)
+
+/* larb15: null */
+
+/* larb16 */
+#define M4U_PORT_L16_CAM_IMGO_R1_A MTK_M4U_ID(16, 0)
+#define M4U_PORT_L16_CAM_RRZO_R1_A MTK_M4U_ID(16, 1)
+#define M4U_PORT_L16_CAM_CQI_R1_A MTK_M4U_ID(16, 2)
+#define M4U_PORT_L16_CAM_BPCI_R1_A MTK_M4U_ID(16, 3)
+#define M4U_PORT_L16_CAM_YUVO_R1_A MTK_M4U_ID(16, 4)
+#define M4U_PORT_L16_CAM_UFDI_R2_A MTK_M4U_ID(16, 5)
+#define M4U_PORT_L16_CAM_RAWI_R2_A MTK_M4U_ID(16, 6)
+#define M4U_PORT_L16_CAM_RAWI_R3_A MTK_M4U_ID(16, 7)
+#define M4U_PORT_L16_CAM_AAO_R1_A MTK_M4U_ID(16, 8)
+#define M4U_PORT_L16_CAM_AFO_R1_A MTK_M4U_ID(16, 9)
+#define M4U_PORT_L16_CAM_FLKO_R1_A MTK_M4U_ID(16, 10)
+#define M4U_PORT_L16_CAM_LCESO_R1_A MTK_M4U_ID(16, 11)
+#define M4U_PORT_L16_CAM_CRZO_R1_A MTK_M4U_ID(16, 12)
+#define M4U_PORT_L16_CAM_LTMSO_R1_A MTK_M4U_ID(16, 13)
+#define M4U_PORT_L16_CAM_RSSO_R1_A MTK_M4U_ID(16, 14)
+#define M4U_PORT_L16_CAM_AAHO_R1_A MTK_M4U_ID(16, 15)
+#define M4U_PORT_L16_CAM_LSCI_R1_A MTK_M4U_ID(16, 16)
+
+/* larb17 */
+#define M4U_PORT_L17_CAM_IMGO_R1_B MTK_M4U_ID(17, 0)
+#define M4U_PORT_L17_CAM_RRZO_R1_B MTK_M4U_ID(17, 1)
+#define M4U_PORT_L17_CAM_CQI_R1_B MTK_M4U_ID(17, 2)
+#define M4U_PORT_L17_CAM_BPCI_R1_B MTK_M4U_ID(17, 3)
+#define M4U_PORT_L17_CAM_YUVO_R1_B MTK_M4U_ID(17, 4)
+#define M4U_PORT_L17_CAM_UFDI_R2_B MTK_M4U_ID(17, 5)
+#define M4U_PORT_L17_CAM_RAWI_R2_B MTK_M4U_ID(17, 6)
+#define M4U_PORT_L17_CAM_RAWI_R3_B MTK_M4U_ID(17, 7)
+#define M4U_PORT_L17_CAM_AAO_R1_B MTK_M4U_ID(17, 8)
+#define M4U_PORT_L17_CAM_AFO_R1_B MTK_M4U_ID(17, 9)
+#define M4U_PORT_L17_CAM_FLKO_R1_B MTK_M4U_ID(17, 10)
+#define M4U_PORT_L17_CAM_LCESO_R1_B MTK_M4U_ID(17, 11)
+#define M4U_PORT_L17_CAM_CRZO_R1_B MTK_M4U_ID(17, 12)
+#define M4U_PORT_L17_CAM_LTMSO_R1_B MTK_M4U_ID(17, 13)
+#define M4U_PORT_L17_CAM_RSSO_R1_B MTK_M4U_ID(17, 14)
+#define M4U_PORT_L17_CAM_AAHO_R1_B MTK_M4U_ID(17, 15)
+#define M4U_PORT_L17_CAM_LSCI_R1_B MTK_M4U_ID(17, 16)
+
+/* larb18 */
+#define M4U_PORT_L18_CAM_IMGO_R1_C MTK_M4U_ID(18, 0)
+#define M4U_PORT_L18_CAM_RRZO_R1_C MTK_M4U_ID(18, 1)
+#define M4U_PORT_L18_CAM_CQI_R1_C MTK_M4U_ID(18, 2)
+#define M4U_PORT_L18_CAM_BPCI_R1_C MTK_M4U_ID(18, 3)
+#define M4U_PORT_L18_CAM_YUVO_R1_C MTK_M4U_ID(18, 4)
+#define M4U_PORT_L18_CAM_UFDI_R2_C MTK_M4U_ID(18, 5)
+#define M4U_PORT_L18_CAM_RAWI_R2_C MTK_M4U_ID(18, 6)
+#define M4U_PORT_L18_CAM_RAWI_R3_C MTK_M4U_ID(18, 7)
+#define M4U_PORT_L18_CAM_AAO_R1_C MTK_M4U_ID(18, 8)
+#define M4U_PORT_L18_CAM_AFO_R1_C MTK_M4U_ID(18, 9)
+#define M4U_PORT_L18_CAM_FLKO_R1_C MTK_M4U_ID(18, 10)
+#define M4U_PORT_L18_CAM_LCESO_R1_C MTK_M4U_ID(18, 11)
+#define M4U_PORT_L18_CAM_CRZO_R1_C MTK_M4U_ID(18, 12)
+#define M4U_PORT_L18_CAM_LTMSO_R1_C MTK_M4U_ID(18, 13)
+#define M4U_PORT_L18_CAM_RSSO_R1_C MTK_M4U_ID(18, 14)
+#define M4U_PORT_L18_CAM_AAHO_R1_C MTK_M4U_ID(18, 15)
+#define M4U_PORT_L18_CAM_LSCI_R1_C MTK_M4U_ID(18, 16)
+
+/* larb19 */
+#define M4U_PORT_L19_IPE_DVS_RDMA MTK_M4U_ID(19, 0)
+#define M4U_PORT_L19_IPE_DVS_WDMA MTK_M4U_ID(19, 1)
+#define M4U_PORT_L19_IPE_DVP_RDMA MTK_M4U_ID(19, 2)
+#define M4U_PORT_L19_IPE_DVP_WDMA MTK_M4U_ID(19, 3)
+
+/* larb20 */
+#define M4U_PORT_L20_IPE_FDVT_RDA MTK_M4U_ID(20, 0)
+#define M4U_PORT_L20_IPE_FDVT_RDB MTK_M4U_ID(20, 1)
+#define M4U_PORT_L20_IPE_FDVT_WRA MTK_M4U_ID(20, 2)
+#define M4U_PORT_L20_IPE_FDVT_WRB MTK_M4U_ID(20, 3)
+#define M4U_PORT_L20_IPE_RSC_RDMA0 MTK_M4U_ID(20, 4)
+#define M4U_PORT_L20_IPE_RSC_WDMA MTK_M4U_ID(20, 5)
+
+#endif
diff --git a/include/dt-bindings/memory/mtk-memory-port.h b/include/dt-bindings/memory/mtk-memory-port.h
new file mode 100644
index 000000000000..7d64103209af
--- /dev/null
+++ b/include/dt-bindings/memory/mtk-memory-port.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2020 MediaTek Inc.
+ * Author: Yong Wu <yong.wu@mediatek.com>
+ */
+#ifndef __DT_BINDINGS_MEMORY_MTK_MEMORY_PORT_H_
+#define __DT_BINDINGS_MEMORY_MTK_MEMORY_PORT_H_
+
+#define MTK_LARB_NR_MAX 32
+
+#define MTK_M4U_ID(larb, port) (((larb) << 5) | (port))
+#define MTK_M4U_TO_LARB(id) (((id) >> 5) & 0x1f)
+#define MTK_M4U_TO_PORT(id) ((id) & 0x1f)
+
+#endif
diff --git a/include/linux/io-pgtable.h b/include/linux/io-pgtable.h
index ea727eb1a1a9..d69234a4a65e 100644
--- a/include/linux/io-pgtable.h
+++ b/include/linux/io-pgtable.h
@@ -68,13 +68,9 @@ struct io_pgtable_cfg {
* hardware which does not implement the permissions of a given
* format, and/or requires some format-specific default value.
*
- * IO_PGTABLE_QUIRK_TLBI_ON_MAP: If the format forbids caching invalid
- * (unmapped) entries but the hardware might do so anyway, perform
- * TLB maintenance when mapping as well as when unmapping.
- *
* IO_PGTABLE_QUIRK_ARM_MTK_EXT: (ARM v7s format) MediaTek IOMMUs extend
- * to support up to 34 bits PA where the bit32 and bit33 are
- * encoded in the bit9 and bit4 of the PTE respectively.
+ * to support up to 35 bits PA where the bit32, bit33 and bit34 are
+ * encoded in the bit9, bit4 and bit5 of the PTE respectively.
*
* IO_PGTABLE_QUIRK_NON_STRICT: Skip issuing synchronous leaf TLBIs
* on unmap, for DMA domains using the flush queue mechanism for
@@ -88,7 +84,6 @@ struct io_pgtable_cfg {
*/
#define IO_PGTABLE_QUIRK_ARM_NS BIT(0)
#define IO_PGTABLE_QUIRK_NO_PERMS BIT(1)
- #define IO_PGTABLE_QUIRK_TLBI_ON_MAP BIT(2)
#define IO_PGTABLE_QUIRK_ARM_MTK_EXT BIT(3)
#define IO_PGTABLE_QUIRK_NON_STRICT BIT(4)
#define IO_PGTABLE_QUIRK_ARM_TTBR1 BIT(5)
@@ -214,14 +209,16 @@ struct io_pgtable_domain_attr {
static inline void io_pgtable_tlb_flush_all(struct io_pgtable *iop)
{
- iop->cfg.tlb->tlb_flush_all(iop->cookie);
+ if (iop->cfg.tlb && iop->cfg.tlb->tlb_flush_all)
+ iop->cfg.tlb->tlb_flush_all(iop->cookie);
}
static inline void
io_pgtable_tlb_flush_walk(struct io_pgtable *iop, unsigned long iova,
size_t size, size_t granule)
{
- iop->cfg.tlb->tlb_flush_walk(iova, size, granule, iop->cookie);
+ if (iop->cfg.tlb && iop->cfg.tlb->tlb_flush_walk)
+ iop->cfg.tlb->tlb_flush_walk(iova, size, granule, iop->cookie);
}
static inline void
@@ -229,7 +226,7 @@ io_pgtable_tlb_add_page(struct io_pgtable *iop,
struct iommu_iotlb_gather * gather, unsigned long iova,
size_t granule)
{
- if (iop->cfg.tlb->tlb_add_page)
+ if (iop->cfg.tlb && iop->cfg.tlb->tlb_add_page)
iop->cfg.tlb->tlb_add_page(gather, iova, granule, iop->cookie);
}
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index b3f0e2018c62..ae8eddd4621b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -170,7 +170,7 @@ enum iommu_dev_features {
* struct iommu_iotlb_gather - Range information for a pending IOTLB flush
*
* @start: IOVA representing the start of the range to be flushed
- * @end: IOVA representing the end of the range to be flushed (exclusive)
+ * @end: IOVA representing the end of the range to be flushed (inclusive)
* @pgsize: The interval at which to perform the flush
*
* This structure is intended to be updated by multiple calls to the
@@ -246,7 +246,8 @@ struct iommu_ops {
size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
size_t size, struct iommu_iotlb_gather *iotlb_gather);
void (*flush_iotlb_all)(struct iommu_domain *domain);
- void (*iotlb_sync_map)(struct iommu_domain *domain);
+ void (*iotlb_sync_map)(struct iommu_domain *domain, unsigned long iova,
+ size_t size);
void (*iotlb_sync)(struct iommu_domain *domain,
struct iommu_iotlb_gather *iotlb_gather);
phys_addr_t (*iova_to_phys)(struct iommu_domain *domain, dma_addr_t iova);
@@ -538,7 +539,7 @@ static inline void iommu_iotlb_gather_add_page(struct iommu_domain *domain,
struct iommu_iotlb_gather *gather,
unsigned long iova, size_t size)
{
- unsigned long start = iova, end = start + size;
+ unsigned long start = iova, end = start + size - 1;
/*
* If the new page is disjoint from the current range or is mapped at
diff --git a/include/soc/mediatek/smi.h b/include/soc/mediatek/smi.h
index 5a34b87d89e3..4cf445dbbdaa 100644
--- a/include/soc/mediatek/smi.h
+++ b/include/soc/mediatek/smi.h
@@ -11,13 +11,12 @@
#ifdef CONFIG_MTK_SMI
-#define MTK_LARB_NR_MAX 16
-
#define MTK_SMI_MMU_EN(port) BIT(port)
struct mtk_smi_larb_iommu {
struct device *dev;
unsigned int mmu;
+ unsigned char bank[32];
};
/*