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Date: Thu, 13 Aug 2020 19:40:57 -0700 From: Rob Clark <robdclark@...il.com> To: dri-devel@...ts.freedesktop.org, iommu@...ts.linux-foundation.org, linux-arm-msm@...r.kernel.org Cc: Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>, Will Deacon <will@...nel.org>, freedreno@...ts.freedesktop.org, Bjorn Andersson <bjorn.andersson@...aro.org>, Sibi Sankar <sibis@...eaurora.org>, Vivek Gautam <vivek.gautam@...eaurora.org>, Stephen Boyd <swboyd@...omium.org>, Robin Murphy <robin.murphy@....com>, Joerg Roedel <joro@...tes.org>, linux-arm-kernel@...ts.infradead.org, Jordan Crouse <jcrouse@...eaurora.org>, Rob Clark <robdclark@...omium.org>, Jonathan Marek <jonathan@...ek.ca>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Thierry Reding <thierry.reding@...il.com>, Krishna Reddy <vdumpa@...dia.com>, linux-kernel@...r.kernel.org (open list) Subject: [PATCH 02/19] iommu/arm-smmu: Pass io-pgtable config to implementation specific function From: Jordan Crouse <jcrouse@...eaurora.org> Construct the io-pgtable config before calling the implementation specific init_context function and pass it so the implementation specific function can get a chance to change it before the io-pgtable is created. Signed-off-by: Jordan Crouse <jcrouse@...eaurora.org> Signed-off-by: Rob Clark <robdclark@...omium.org> --- drivers/iommu/arm/arm-smmu/arm-smmu-impl.c | 3 ++- drivers/iommu/arm/arm-smmu/arm-smmu.c | 11 ++++++----- drivers/iommu/arm/arm-smmu/arm-smmu.h | 3 ++- 3 files changed, 10 insertions(+), 7 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c index f4ff124a1967..a9861dcd0884 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu-impl.c @@ -68,7 +68,8 @@ static int cavium_cfg_probe(struct arm_smmu_device *smmu) return 0; } -static int cavium_init_context(struct arm_smmu_domain *smmu_domain) +static int cavium_init_context(struct arm_smmu_domain *smmu_domain, + struct io_pgtable_cfg *pgtbl_cfg) { struct cavium_smmu *cs = container_of(smmu_domain->smmu, struct cavium_smmu, smmu); diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.c b/drivers/iommu/arm/arm-smmu/arm-smmu.c index 09c42af9f31e..37d8d49299b4 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.c +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.c @@ -795,11 +795,6 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain, cfg->asid = cfg->cbndx; smmu_domain->smmu = smmu; - if (smmu->impl && smmu->impl->init_context) { - ret = smmu->impl->init_context(smmu_domain); - if (ret) - goto out_unlock; - } pgtbl_cfg = (struct io_pgtable_cfg) { .pgsize_bitmap = smmu->pgsize_bitmap, @@ -810,6 +805,12 @@ static int arm_smmu_init_domain_context(struct iommu_domain *domain, .iommu_dev = smmu->dev, }; + if (smmu->impl && smmu->impl->init_context) { + ret = smmu->impl->init_context(smmu_domain, &pgtbl_cfg); + if (ret) + goto out_clear_smmu; + } + if (smmu_domain->non_strict) pgtbl_cfg.quirks |= IO_PGTABLE_QUIRK_NON_STRICT; diff --git a/drivers/iommu/arm/arm-smmu/arm-smmu.h b/drivers/iommu/arm/arm-smmu/arm-smmu.h index d890a4a968e8..83294516ac08 100644 --- a/drivers/iommu/arm/arm-smmu/arm-smmu.h +++ b/drivers/iommu/arm/arm-smmu/arm-smmu.h @@ -386,7 +386,8 @@ struct arm_smmu_impl { u64 val); int (*cfg_probe)(struct arm_smmu_device *smmu); int (*reset)(struct arm_smmu_device *smmu); - int (*init_context)(struct arm_smmu_domain *smmu_domain); + int (*init_context)(struct arm_smmu_domain *smmu_domain, + struct io_pgtable_cfg *cfg); void (*tlb_sync)(struct arm_smmu_device *smmu, int page, int sync, int status); int (*def_domain_type)(struct device *dev); -- 2.26.2
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