From: Jason Gunthorpe <jgg@nvidia.com> To: iommu@lists.linux.dev, Joerg Roedel <joro@8bytes.org>, linux-arm-kernel@lists.infradead.org, Robin Murphy <robin.murphy@arm.com>, Will Deacon <will@kernel.org> Cc: Lu Baolu <baolu.lu@linux.intel.com>, Jean-Philippe Brucker <jean-philippe@linaro.org>, Joerg Roedel <jroedel@suse.de>, Moritz Fischer <mdf@kernel.org>, Moritz Fischer <moritzf@google.com>, Michael Shavit <mshavit@google.com>, Nicolin Chen <nicolinc@nvidia.com>, patches@lists.linux.dev, Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>, Mostafa Saleh <smostafa@google.com>, Zhangfei Gao <zhangfei.gao@linaro.org> Subject: [PATCH v6 16/16] iommu/arm-smmu-v3: Convert to domain_alloc_paging() Date: Mon, 26 Feb 2024 13:07:27 -0400 [thread overview] Message-ID: <16-v6-96275f25c39d+2d4-smmuv3_newapi_p1_jgg@nvidia.com> (raw) In-Reply-To: <0-v6-96275f25c39d+2d4-smmuv3_newapi_p1_jgg@nvidia.com> Now that the BLOCKED and IDENTITY behaviors are managed with their own domains change to the domain_alloc_paging() op. For now SVA remains using the old interface, eventually it will get its own op that can pass in the device and mm_struct which will let us have a sane lifetime for the mmu_notifier. Call arm_smmu_domain_finalise() early if dev is available. Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Moritz Fischer <moritzf@google.com> Reviewed-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 22 ++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) 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 ebd8362c8aa3ac..b7938f17222b4d 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2197,14 +2197,15 @@ static bool arm_smmu_capable(struct device *dev, enum iommu_cap cap) static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) { - struct arm_smmu_domain *smmu_domain; if (type == IOMMU_DOMAIN_SVA) return arm_smmu_sva_domain_alloc(); + return ERR_PTR(-EOPNOTSUPP); +} - if (type != IOMMU_DOMAIN_UNMANAGED && - type != IOMMU_DOMAIN_DMA) - return NULL; +static struct iommu_domain *arm_smmu_domain_alloc_paging(struct device *dev) +{ + struct arm_smmu_domain *smmu_domain; /* * Allocate the domain and initialise some of its data structures. @@ -2213,13 +2214,23 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) */ smmu_domain = kzalloc(sizeof(*smmu_domain), GFP_KERNEL); if (!smmu_domain) - return NULL; + return ERR_PTR(-ENOMEM); mutex_init(&smmu_domain->init_mutex); INIT_LIST_HEAD(&smmu_domain->devices); spin_lock_init(&smmu_domain->devices_lock); INIT_LIST_HEAD(&smmu_domain->mmu_notifiers); + if (dev) { + struct arm_smmu_master *master = dev_iommu_priv_get(dev); + int ret; + + ret = arm_smmu_domain_finalise(smmu_domain, master->smmu); + if (ret) { + kfree(smmu_domain); + return ERR_PTR(ret); + } + } return &smmu_domain->domain; } @@ -3083,6 +3094,7 @@ static struct iommu_ops arm_smmu_ops = { .blocked_domain = &arm_smmu_blocked_domain, .capable = arm_smmu_capable, .domain_alloc = arm_smmu_domain_alloc, + .domain_alloc_paging = arm_smmu_domain_alloc_paging, .probe_device = arm_smmu_probe_device, .release_device = arm_smmu_release_device, .device_group = arm_smmu_device_group, -- 2.43.2
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@nvidia.com> To: iommu@lists.linux.dev, Joerg Roedel <joro@8bytes.org>, linux-arm-kernel@lists.infradead.org, Robin Murphy <robin.murphy@arm.com>, Will Deacon <will@kernel.org> Cc: Lu Baolu <baolu.lu@linux.intel.com>, Jean-Philippe Brucker <jean-philippe@linaro.org>, Joerg Roedel <jroedel@suse.de>, Moritz Fischer <mdf@kernel.org>, Moritz Fischer <moritzf@google.com>, Michael Shavit <mshavit@google.com>, Nicolin Chen <nicolinc@nvidia.com>, patches@lists.linux.dev, Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>, Mostafa Saleh <smostafa@google.com>, Zhangfei Gao <zhangfei.gao@linaro.org> Subject: [PATCH v6 16/16] iommu/arm-smmu-v3: Convert to domain_alloc_paging() Date: Mon, 26 Feb 2024 13:07:27 -0400 [thread overview] Message-ID: <16-v6-96275f25c39d+2d4-smmuv3_newapi_p1_jgg@nvidia.com> (raw) In-Reply-To: <0-v6-96275f25c39d+2d4-smmuv3_newapi_p1_jgg@nvidia.com> Now that the BLOCKED and IDENTITY behaviors are managed with their own domains change to the domain_alloc_paging() op. For now SVA remains using the old interface, eventually it will get its own op that can pass in the device and mm_struct which will let us have a sane lifetime for the mmu_notifier. Call arm_smmu_domain_finalise() early if dev is available. Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Moritz Fischer <moritzf@google.com> Reviewed-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 22 ++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) 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 ebd8362c8aa3ac..b7938f17222b4d 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -2197,14 +2197,15 @@ static bool arm_smmu_capable(struct device *dev, enum iommu_cap cap) static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) { - struct arm_smmu_domain *smmu_domain; if (type == IOMMU_DOMAIN_SVA) return arm_smmu_sva_domain_alloc(); + return ERR_PTR(-EOPNOTSUPP); +} - if (type != IOMMU_DOMAIN_UNMANAGED && - type != IOMMU_DOMAIN_DMA) - return NULL; +static struct iommu_domain *arm_smmu_domain_alloc_paging(struct device *dev) +{ + struct arm_smmu_domain *smmu_domain; /* * Allocate the domain and initialise some of its data structures. @@ -2213,13 +2214,23 @@ static struct iommu_domain *arm_smmu_domain_alloc(unsigned type) */ smmu_domain = kzalloc(sizeof(*smmu_domain), GFP_KERNEL); if (!smmu_domain) - return NULL; + return ERR_PTR(-ENOMEM); mutex_init(&smmu_domain->init_mutex); INIT_LIST_HEAD(&smmu_domain->devices); spin_lock_init(&smmu_domain->devices_lock); INIT_LIST_HEAD(&smmu_domain->mmu_notifiers); + if (dev) { + struct arm_smmu_master *master = dev_iommu_priv_get(dev); + int ret; + + ret = arm_smmu_domain_finalise(smmu_domain, master->smmu); + if (ret) { + kfree(smmu_domain); + return ERR_PTR(ret); + } + } return &smmu_domain->domain; } @@ -3083,6 +3094,7 @@ static struct iommu_ops arm_smmu_ops = { .blocked_domain = &arm_smmu_blocked_domain, .capable = arm_smmu_capable, .domain_alloc = arm_smmu_domain_alloc, + .domain_alloc_paging = arm_smmu_domain_alloc_paging, .probe_device = arm_smmu_probe_device, .release_device = arm_smmu_release_device, .device_group = arm_smmu_device_group, -- 2.43.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-02-26 17:07 UTC|newest] Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-02-26 17:07 [PATCH v6 00/16] Update SMMUv3 to the modern iommu API (part 1/3) Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 01/16] iommu/arm-smmu-v3: Make STE programming independent of the callers Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-27 12:47 ` Will Deacon 2024-02-27 12:47 ` Will Deacon 2024-02-29 14:07 ` Jason Gunthorpe 2024-02-29 14:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 02/16] iommu/arm-smmu-v3: Consolidate the STE generation for abort/bypass Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 03/16] iommu/arm-smmu-v3: Move the STE generation for S1 and S2 domains into functions Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 04/16] iommu/arm-smmu-v3: Build the whole STE in arm_smmu_make_s2_domain_ste() Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 05/16] iommu/arm-smmu-v3: Hold arm_smmu_asid_lock during all of attach_dev Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 06/16] iommu/arm-smmu-v3: Compute the STE only once for each master Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 07/16] iommu/arm-smmu-v3: Do not change the STE twice during arm_smmu_attach_dev() Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 08/16] iommu/arm-smmu-v3: Put writing the context descriptor in the right order Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 09/16] iommu/arm-smmu-v3: Pass smmu_domain to arm_enable/disable_ats() Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 10/16] iommu/arm-smmu-v3: Remove arm_smmu_master->domain Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 11/16] iommu/arm-smmu-v3: Check that the RID domain is S1 in SVA Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 12/16] iommu/arm-smmu-v3: Add a global static IDENTITY domain Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 13/16] iommu/arm-smmu-v3: Add a global static BLOCKED domain Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 14/16] iommu/arm-smmu-v3: Use the identity/blocked domain during release Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` [PATCH v6 15/16] iommu/arm-smmu-v3: Pass arm_smmu_domain and arm_smmu_device to finalize Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe 2024-02-26 17:07 ` Jason Gunthorpe [this message] 2024-02-26 17:07 ` [PATCH v6 16/16] iommu/arm-smmu-v3: Convert to domain_alloc_paging() Jason Gunthorpe 2024-02-29 16:34 ` [PATCH v6 00/16] Update SMMUv3 to the modern iommu API (part 1/3) Will Deacon 2024-02-29 16:34 ` Will Deacon 2024-02-29 20:23 ` Jason Gunthorpe 2024-02-29 20:23 ` Jason Gunthorpe 2024-02-29 20:47 ` Nicolin Chen 2024-02-29 20:47 ` Nicolin Chen 2024-03-01 8:01 ` Will Deacon 2024-03-01 8:01 ` Will Deacon
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