diff options
| author | Joerg Roedel <jroedel@suse.de> | 2021-02-02 13:35:40 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-02-02 13:35:40 +0100 |
| commit | d1e3306ba83a839462d239ab6dff45ec10f8ce2b (patch) | |
| tree | 9f4a9be46aec7d321a377429aed3bed726390598 | |
| parent | 6ee1d745b7c9fd573fba142a2efdad76a9f1cb04 (diff) | |
| parent | 7060377ce06f9cd3ed6274c0f2310463feb5baec (diff) | |
Merge tag 'arm-smmu-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into arm/smmu
Arm SMMU updates for 5.12
- Support for MT8192 IOMMU from Mediatek
- Arm v7s io-pgtable extensions for MT8192
- Removal of TLBI_ON_MAP quirk
- New Qualcomm compatible strings
- Allow SVA without hardware broadcast TLB maintenance on SMMUv3
- Virtualization Host Extension support for SMMUv3 (SVA)
- Allow SMMUv3 PMU (perf) driver to be built independently from IOMMU
- Misc cleanups
27 files changed, 981 insertions, 356 deletions
diff --git a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml index 3b63f2ae24db..6ba161dea4d8 100644 --- a/Documentation/devicetree/bindings/iommu/arm,smmu.yaml +++ b/Documentation/devicetree/bindings/iommu/arm,smmu.yaml @@ -34,9 +34,11 @@ properties: items: - enum: - qcom,sc7180-smmu-500 + - qcom,sc8180x-smmu-500 - qcom,sdm845-smmu-500 - qcom,sm8150-smmu-500 - qcom,sm8250-smmu-500 + - qcom,sm8350-smmu-500 - const: arm,mmu-500 - description: Qcom Adreno GPUs implementing "arm,smmu-v2" items: 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 992fe3b0900a..b50eb5320189 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11178,6 +11178,15 @@ 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-sva.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c index e13b092e6004..bb251cab61f3 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-sva.c @@ -182,9 +182,13 @@ static void arm_smmu_mm_invalidate_range(struct mmu_notifier *mn, unsigned long start, unsigned long end) { struct arm_smmu_mmu_notifier *smmu_mn = mn_to_smmu(mn); + struct arm_smmu_domain *smmu_domain = smmu_mn->domain; + size_t size = end - start + 1; - arm_smmu_atc_inv_domain(smmu_mn->domain, mm->pasid, start, - end - start + 1); + if (!(smmu_domain->smmu->features & ARM_SMMU_FEAT_BTM)) + arm_smmu_tlb_inv_range_asid(start, size, smmu_mn->cd->asid, + PAGE_SIZE, false, smmu_domain); + arm_smmu_atc_inv_domain(smmu_domain, mm->pasid, start, size); } static void arm_smmu_mm_release(struct mmu_notifier *mn, struct mm_struct *mm) @@ -391,7 +395,7 @@ bool arm_smmu_sva_supported(struct arm_smmu_device *smmu) unsigned long reg, fld; unsigned long oas; unsigned long asid_bits; - u32 feat_mask = ARM_SMMU_FEAT_BTM | ARM_SMMU_FEAT_COHERENCY; + u32 feat_mask = ARM_SMMU_FEAT_COHERENCY; if (vabits_actual == 52) feat_mask |= ARM_SMMU_FEAT_VAX; 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 8ca7415d785d..8594b4a83043 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -88,15 +88,6 @@ static struct arm_smmu_option_prop arm_smmu_options[] = { { 0, NULL}, }; -static inline void __iomem *arm_smmu_page1_fixup(unsigned long offset, - struct arm_smmu_device *smmu) -{ - if (offset > SZ_64K) - return smmu->page1 + offset - SZ_64K; - - return smmu->base + offset; -} - static void parse_driver_options(struct arm_smmu_device *smmu) { int i = 0; @@ -272,9 +263,11 @@ static int arm_smmu_cmdq_build_cmd(u64 *cmd, struct arm_smmu_cmdq_ent *ent) cmd[1] |= FIELD_PREP(CMDQ_CFGI_1_RANGE, 31); break; case CMDQ_OP_TLBI_NH_VA: + cmd[0] |= FIELD_PREP(CMDQ_TLBI_0_VMID, ent->tlbi.vmid); + fallthrough; + case CMDQ_OP_TLBI_EL2_VA: cmd[0] |= FIELD_PREP(CMDQ_TLBI_0_NUM, ent->tlbi.num); cmd[0] |= FIELD_PREP(CMDQ_TLBI_0_SCALE, ent->tlbi.scale); - cmd[0] |= FIELD_PREP(CMDQ_TLBI_0_VMID, ent->tlbi.vmid); cmd[0] |= FIELD_PREP(CMDQ_TLBI_0_ASID, ent->tlbi.asid); cmd[1] |= FIELD_PREP(CMDQ_TLBI_1_LEAF, ent->tlbi.leaf); cmd[1] |= FIELD_PREP(CMDQ_TLBI_1_TTL, ent->tlbi.ttl); @@ -296,6 +289,9 @@ static int arm_smmu_cmdq_build_cmd(u64 *cmd, struct arm_smmu_cmdq_ent *ent) case CMDQ_OP_TLBI_S12_VMALL: cmd[0] |= FIELD_PREP(CMDQ_TLBI_0_VMID, ent->tlbi.vmid); break; + case CMDQ_OP_TLBI_EL2_ASID: + cmd[0] |= FIELD_PREP(CMDQ_TLBI_0_ASID, ent->tlbi.asid); + break; case CMDQ_OP_ATC_INV: cmd[0] |= FIELD_PREP(CMDQ_0_SSV, ent->substream_valid); cmd[0] |= FIELD_PREP(CMDQ_ATC_0_GLOBAL, ent->atc.global); @@ -886,7 +882,8 @@ static int arm_smmu_cmdq_batch_submit(struct arm_smmu_device *smmu, void arm_smmu_tlb_inv_asid(struct arm_smmu_device *smmu, u16 asid) { struct arm_smmu_cmdq_ent cmd = { - .opcode = CMDQ_OP_TLBI_NH_ASID, + .opcode = smmu->features & ARM_SMMU_FEAT_E2H ? + CMDQ_OP_TLBI_EL2_ASID : CMDQ_OP_TLBI_NH_ASID, .tlbi.asid = asid, }; @@ -1269,13 +1266,16 @@ static void arm_smmu_write_strtab_ent(struct arm_smmu_master *master, u32 sid, } if (s1_cfg) { + u64 strw = smmu->features & ARM_SMMU_FEAT_E2H ? + STRTAB_STE_1_STRW_EL2 : STRTAB_STE_1_STRW_NSEL1; + BUG_ON(ste_live); dst[1] = cpu_to_le64( FIELD_PREP(STRTAB_STE_1_S1DSS, STRTAB_STE_1_S1DSS_SSID0) | FIELD_PREP(STRTAB_STE_1_S1CIR, STRTAB_STE_1_S1C_CACHE_WBRA) | FIELD_PREP(STRTAB_STE_1_S1COR, STRTAB_STE_1_S1C_CACHE_WBRA) | FIELD_PREP(STRTAB_STE_1_S1CSH, ARM_SMMU_SH_ISH) | - FIELD_PREP(STRTAB_STE_1_STRW, STRTAB_STE_1_STRW_NSEL1)); + FIELD_PREP(STRTAB_STE_1_STRW, strw)); if (smmu->features & ARM_SMMU_FEAT_STALLS && !(smmu->features & ARM_SMMU_FEAT_STALL_FORCE)) @@ -1667,40 +1667,28 @@ static void arm_smmu_tlb_inv_context(void *cookie) arm_smmu_atc_inv_domain(smmu_domain, 0, 0, 0); } -static void arm_smmu_tlb_inv_range(unsigned long iova, size_t size, - size_t granule, bool leaf, - struct arm_smmu_domain *smmu_domain) +static void __arm_smmu_tlb_inv_range(struct arm_smmu_cmdq_ent *cmd, + unsigned long iova, size_t size, + size_t granule, + struct arm_smmu_domain *smmu_domain) { struct arm_smmu_device *smmu = smmu_domain->smmu; - unsigned long start = iova, end = iova + size, num_pages = 0, tg = 0; + unsigned long end = iova + size, num_pages = 0, tg = 0; size_t inv_range = granule; struct arm_smmu_cmdq_batch cmds = {}; - struct arm_smmu_cmdq_ent cmd = { - .tlbi = { - .leaf = leaf, - }, - }; if (!size) return; - if (smmu_domain->stage == ARM_SMMU_DOMAIN_S1) { - cmd.opcode = CMDQ_OP_TLBI_NH_VA; - cmd.tlbi.asid = smmu_domain->s1_cfg.cd.asid; - } else { - cmd.opcode = CMDQ_OP_TLBI_S2_IPA; - cmd.tlbi.vmid = smmu_domain->s2_cfg.vmid; - } - if (smmu->features & ARM_SMMU_FEAT_RANGE_INV) { /* Get the leaf page size */ tg = __ffs(smmu_domain->domain.pgsize_bitmap); /* Convert page size of 12,14,16 (log2) to 1,2,3 */ - cmd.tlbi.tg = (tg - 10) / 2; + cmd->tlbi.tg = (tg - 10) / 2; /* Determine what level the granule is at */ - cmd.tlbi.ttl = 4 - ((ilog2(granule) - 3) / (tg - 3)); + cmd->tlbi.ttl = 4 - ((ilog2(granule) - 3) / (tg - 3)); num_pages = size >> tg; } @@ -1718,11 +1706,11 @@ static void arm_smmu_tlb_inv_range(unsigned long iova, size_t size, /* Determine the power of 2 multiple number of pages */ scale = __ffs(num_pages); - cmd.tlbi.scale = scale; + cmd->tlbi.scale = scale; /* Determine how many chunks of 2^scale size we have */ num = (num_pages >> scale) & CMDQ_TLBI_RANGE_NUM_MAX; - cmd.tlbi.num = num - 1; + cmd->tlbi.num = num - 1; /* range is num * 2^scale * pgsize */ inv_range = num << (scale + tg); @@ -1731,17 +1719,54 @@ static void arm_smmu_tlb_inv_range(unsigned long iova, size_t size, num_pages -= num << scale; } - cmd.tlbi.addr = iova; - arm_smmu_cmdq_batch_add(smmu, &cmds, &cmd); + cmd->tlbi.addr = iova; + arm_smmu_cmdq_batch_add(smmu, &cmds, cmd); iova += inv_range; } arm_smmu_cmdq_batch_submit(smmu, &cmds); +} + +static void arm_smmu_tlb_inv_range_domain(unsigned long iova, size_t size, + size_t granule, bool leaf, + struct arm_smmu_domain *smmu_domain) +{ + struct arm_smmu_cmdq_ent cmd = { + .tlbi = { + .leaf = leaf, + }, + }; + + if (smmu_domain->stage == ARM_SMMU_DOMAIN_S1) { + cmd.opcode = smmu_domain->smmu->features & ARM_SMMU_FEAT_E2H ? + CMDQ_OP_TLBI_EL2_VA : CMDQ_OP_TLBI_NH_VA; + cmd.tlbi.asid = smmu_domain->s1_cfg.cd.asid; + } else { + cmd.opcode = CMDQ_OP_TLBI_S2_IPA; + cmd.tlbi.vmid = smmu_domain->s2_cfg.vmid; + } + __arm_smmu_tlb_inv_range(&cmd, iova, size, granule, smmu_domain); /* * Unfortunately, this can't be leaf-only since we may have * zapped an entire table. */ - arm_smmu_atc_inv_domain(smmu_domain, 0, start, size); + arm_smmu_atc_inv_domain(smmu_domain, 0, iova, size); +} + +void arm_smmu_tlb_inv_range_asid(unsigned long iova, size_t size, int asid, + size_t granule, bool leaf, + struct arm_smmu_domain *smmu_domain) +{ + struct arm_smmu_cmdq_ent cmd = { + .opcode = smmu_domain->smmu->features & ARM_SMMU_FEAT_E2H ? + CMDQ_OP_TLBI_EL2_VA : CMDQ_OP_TLBI_NH_VA, + .tlbi = { + .asid = asid, + .leaf = leaf, + }, + }; + + __arm_smmu_tlb_inv_range(&cmd, iova, size, granule, smmu_domain); } static void arm_smmu_tlb_inv_page_nosync(struct iommu_iotlb_gather *gather, @@ -1757,7 +1782,7 @@ static void arm_smmu_tlb_inv_page_nosync(struct iommu_iotlb_gather *gather, static void arm_smmu_tlb_inv_walk(unsigned long iova, size_t size, size_t granule, void *cookie) { - arm_smmu_tlb_inv_range(iova, size, granule, false, cookie); + arm_smmu_tlb_inv_range_domain(iova, size, granule, false, cookie); } static const struct iommu_flush_ops arm_smmu_flush_ops = { @@ -2280,8 +2305,9 @@ 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(gather->start, gather->end - gather->start, - gather->pgsize, true, smmu_domain); + arm_smmu_tlb_inv_range_domain(gather->start, + gather->end - gather->start + 1, + gather->pgsize, true, smmu_domain); } static phys_addr_t @@ -2611,6 +2637,7 @@ static struct iommu_ops arm_smmu_ops = { /* Probing and initialisation functions */ static int arm_smmu_init_one_queue(struct arm_smmu_device *smmu, struct arm_smmu_queue *q, + void __iomem *page, unsigned long prod_off, unsigned long cons_off, size_t dwords, const char *name) @@ -2639,8 +2666,8 @@ static int arm_smmu_init_one_queue(struct arm_smmu_device *smmu, 1 << q->llq.max_n_shift, name); } - q->prod_reg = arm_smmu_page1_fixup(prod_off, smmu); - q->cons_reg = arm_smmu_page1_fixup(cons_off, smmu); + q->prod_reg = page + prod_off; + q->cons_reg = page + cons_off; q->ent_dwords = dwords; q->q_base = Q_BASE_RWA; @@ -2684,9 +2711,9 @@ static int arm_smmu_init_queues(struct arm_smmu_device *smmu) int ret; /* cmdq */ - ret = arm_smmu_init_one_queue(smmu, &smmu->cmdq.q, ARM_SMMU_CMDQ_PROD, - ARM_SMMU_CMDQ_CONS, CMDQ_ENT_DWORDS, - "cmdq"); + ret = arm_smmu_init_one_queue(smmu, &smmu->cmdq.q, smmu->base, + ARM_SMMU_CMDQ_PROD, ARM_SMMU_CMDQ_CONS, + CMDQ_ENT_DWORDS, "cmdq"); if (ret) return ret; @@ -2695,9 +2722,9 @@ static int arm_smmu_init_queues(struct arm_smmu_device *smmu) return ret; /* evtq */ - ret = arm_smmu_init_one_queue(smmu, &smmu->evtq.q, ARM_SMMU_EVTQ_PROD, - ARM_SMMU_EVTQ_CONS, EVTQ_ENT_DWORDS, - "evtq"); + ret = arm_smmu_init_one_queue(smmu, &smmu->evtq.q, smmu->page1, + ARM_SMMU_EVTQ_PROD, ARM_SMMU_EVTQ_CONS, + EVTQ_ENT_DWORDS, "evtq"); if (ret) return ret; @@ -2705,9 +2732,9 @@ static int arm_smmu_init_queues(struct arm_smmu_device *smmu) if (!(smmu->features & ARM_SMMU_FEAT_PRI)) return 0; - return arm_smmu_init_one_queue(smmu, &smmu->priq.q, ARM_SMMU_PRIQ_PROD, - ARM_SMMU_PRIQ_CONS, PRIQ_ENT_DWORDS, - "priq"); + return arm_smmu_init_one_queue(smmu, &smmu->priq.q, smmu->page1, + ARM_SMMU_PRIQ_PROD, ARM_SMMU_PRIQ_CONS, + PRIQ_ENT_DWORDS, "priq"); } static int arm_smmu_init_l1_strtab(struct arm_smmu_device *smmu) @@ -3060,7 +3087,11 @@ static int arm_smmu_device_reset(struct arm_smmu_device *smmu, bool bypass) writel_relaxed(reg, smmu->base + ARM_SMMU_CR1); /* CR2 (random crap) */ - reg = CR2_PTM | CR2_RECINVSID | CR2_E2H; + reg = CR2_PTM | CR2_RECINVSID; + + if (smmu->features & ARM_SMMU_FEAT_E2H) + reg |= CR2_E2H; + writel_relaxed(reg, smmu->base + ARM_SMMU_CR2); /* Stream table */ @@ -3099,10 +3130,8 @@ static int arm_smmu_device_reset(struct arm_smmu_device *smmu, bool bypass) /* Event queue */ writeq_relaxed(smmu->evtq.q.q_base, smmu->base + ARM_SMMU_EVTQ_BASE); - writel_relaxed(smmu->evtq.q.llq.prod, - arm_smmu_page1_fixup(ARM_SMMU_EVTQ_PROD, smmu)); - writel_relaxed(smmu->evtq.q.llq.cons, - arm_smmu_page1_fixup(ARM_SMMU_EVTQ_CONS, smmu)); + writel_relaxed(smmu->evtq.q.llq.prod, smmu->page1 + ARM_SMMU_EVTQ_PROD); + writel_relaxed(smmu->evtq.q.llq.cons, smmu->page1 + ARM_SMMU_EVTQ_CONS); enables |= CR0_EVTQEN; ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0, @@ -3117,9 +3146,9 @@ static int arm_smmu_device_reset(struct arm_smmu_device *smmu, bool bypass) writeq_relaxed(smmu->priq.q.q_base, smmu->base + ARM_SMMU_PRIQ_BASE); writel_relaxed(smmu->priq.q.llq.prod, - arm_smmu_page1_fixup(ARM_SMMU_PRIQ_PROD, smmu)); + smmu->page1 + ARM_SMMU_PRIQ_PROD); writel_relaxed(smmu->priq.q.llq.cons, - arm_smmu_page1_fixup(ARM_SMMU_PRIQ_CONS, smmu)); + smmu->page1 + ARM_SMMU_PRIQ_CONS); enables |= CR0_PRIQEN; ret = arm_smmu_write_reg_sync(smmu, enables, ARM_SMMU_CR0, @@ -3221,8 +3250,11 @@ static int arm_smmu_device_hw_probe(struct arm_smmu_device *smmu) smmu->options |= ARM_SMMU_OPT_MSIPOLL; } - if (reg & IDR0_HYP) + if (reg & IDR0_HYP) { smmu->features |= ARM_SMMU_FEAT_HYP; + if (cpus_have_cap(ARM64_HAS_VIRT_HOST_EXTN)) + smmu->features |= ARM_SMMU_FEAT_E2H; + } /* * The coherency feature as set by FW is used in preference to the ID @@ -3489,11 +3521,7 @@ err_reset_pci_ops: __maybe_unused; static void __iomem *arm_smmu_ioremap(struct device *dev, resource_size_t start, resource_size_t size) { - struct resource res = { - .flags = IORESOURCE_MEM, - .start = start, - .end = start + size - 1, - }; + struct resource res = DEFINE_RES_MEM(start, size); return devm_ioremap_resource(dev, &res); } diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h index 96c2e9565e00..f985817c967a 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h @@ -139,15 +139,15 @@ #define ARM_SMMU_CMDQ_CONS 0x9c #define ARM_SMMU_EVTQ_BASE 0xa0 -#define ARM_SMMU_EVTQ_PROD 0x100a8 -#define ARM_SMMU_EVTQ_CONS 0x100ac +#define ARM_SMMU_EVTQ_PROD 0xa8 +#define ARM_SMMU_EVTQ_CONS 0xac #define ARM_SMMU_EVTQ_IRQ_CFG0 0xb0 #define ARM_SMMU_EVTQ_IRQ_CFG1 0xb8 #define ARM_SMMU_EVTQ_IRQ_CFG2 0xbc #define ARM_SMMU_PRIQ_BASE 0xc0 -#define ARM_SMMU_PRIQ_PROD 0x100c8 -#define ARM_SMMU_PRIQ_CONS 0x100cc +#define ARM_SMMU_PRIQ_PROD 0xc8 +#define ARM_SMMU_PRIQ_CONS 0xcc #define ARM_SMMU_PRIQ_IRQ_CFG0 0xd0 #define ARM_SMMU_PRIQ_IRQ_CFG1 0xd8 #define ARM_SMMU_PRIQ_IRQ_CFG2 0xdc @@ -430,6 +430,8 @@ struct arm_smmu_cmdq_ent { #define CMDQ_OP_TLBI_NH_ASID 0x11 #define CMDQ_OP_TLBI_NH_VA 0x12 #define CMDQ_OP_TLBI_EL2_ALL 0x20 + #define CMDQ_OP_TLBI_EL2_ASID 0x21 + #define CMDQ_OP_TLBI_EL2_VA 0x22 #define CMDQ_OP_TLBI_S12_VMALL 0x28 #define CMDQ_OP_TLBI_S2_IPA 0x2a #define CMDQ_OP_TLBI_NSNH_ALL 0x30 @@ -604,6 +606,7 @@ struct arm_smmu_device { #define ARM_SMMU_FEAT_RANGE_INV (1 << 15) #define ARM_SMMU_FEAT_BTM (1 << 16) #define ARM_SMMU_FEAT_SVA (1 << 17) +#define ARM_SMMU_FEAT_E2H (1 << 18) u32 features; #define ARM_SMMU_OPT_SKIP_PREFETCH (1 << 0) @@ -694,6 +697,9 @@ extern struct arm_smmu_ctx_desc quiet_cd; int arm_smmu_write_ctx_desc(struct arm_smmu_domain *smmu_domain, int ssid, struct arm_smmu_ctx_desc *cd); void arm_smmu_tlb_inv_asid(struct arm_smmu_device *smmu, u16 asid); +void arm_smmu_tlb_inv_range_asid(unsigned long iova, size_t size, int asid, + size_t granule, bool leaf, + struct arm_smmu_domain *smmu_domain); bool arm_smmu_free_asid(struct arm_smmu_ctx_desc *cd); int arm_smmu_atc_inv_domain(struct arm_smmu_domain *smmu_domain, int ssid, unsigned long iova, size_t size); diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c index bcda17012aee..98b3a1c2a181 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c @@ -166,6 +166,7 @@ static const struct of_device_id qcom_smmu_client_of_match[] __maybe_unused = { { .compatible = "qcom,mdss" }, { .compatible = "qcom,sc7180-mdss" }, { .compatible = "qcom,sc7180-mss-pil" }, + { .compatible = "qcom,sc8180x-mdss" }, { .compatible = "qcom,sdm845-mdss" }, { .compatible = "qcom,sdm845-mss-pil" }, { } @@ -206,6 +207,8 @@ static int qcom_smmu_cfg_probe(struct arm_smmu_device *smmu) smr = arm_smmu_gr0_read(smmu, ARM_SMMU_GR0_SMR(i)); if (FIELD_GET(ARM_SMMU_SMR_VALID, smr)) { + /* Ignore valid bit for SMR mask extraction. */ + smr &= ~ARM_SMMU_SMR_VALID; smmu->smrs[i].id = FIELD_GET(ARM_SMMU_SMR_ID, smr); smmu->smrs[i].mask = FIELD_GET(ARM_SMMU_SMR_MASK, smr); smmu->smrs[i].valid = true; @@ -327,10 +330,12 @@ static struct arm_smmu_device *qcom_smmu_create(struct arm_smmu_device *smmu, static const struct of_device_id __maybe_unused qcom_smmu_impl_of_match[] = { { .compatible = "qcom,msm8998-smmu-v2" }, { .compatible = "qcom,sc7180-smmu-500" }, + { .compatible = "qcom,sc8180x-smmu-500" }, { .compatible = "qcom,sdm630-smmu-v2" }, { .compatible = "qcom,sdm845-smmu-500" }, { .compatible = "qcom,sm8150-smmu-500" }, { .compatible = "qcom,sm8250-smmu-500" }, + { .compatible = "qcom,sm8350-smmu-500" }, { } }; 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(®ion->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/drivers/perf/Kconfig b/drivers/perf/Kconfig index 3075cf171f78..77522e5efe11 100644 --- a/drivers/perf/Kconfig +++ b/drivers/perf/Kconfig @@ -62,7 +62,7 @@ config ARM_PMU_ACPI config ARM_SMMU_V3_PMU tristate "ARM SMMUv3 Performance Monitors Extension" - depends on ARM64 && ACPI && ARM_SMMU_V3 + depends on ARM64 && ACPI help Provides support for the ARM SMMUv3 Performance Monitor Counter Groups (PMCG), which provide monitoring of transactions passing 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]; }; /* |