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[34.87.152.188]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3058494a321sm8298964a91.19.2025.04.07.01.44.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Apr 2025 01:44:02 -0700 (PDT) Date: Mon, 7 Apr 2025 08:43:55 +0000 From: Pranjal Shrivastava To: Nicolin Chen Cc: will@kernel.org, robin.murphy@arm.com, jgg@nvidia.com, joro@8bytes.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, linux-kernel@vger.kernel.org, shameerali.kolothum.thodi@huawei.com Subject: Re: [PATCH v1 2/4] iommu/arm-smmu-v3: Share arm_smmu_cmdq_issue_cmd_with_sync() with vsmmu Message-ID: References: Precedence: bulk X-Mailing-List: iommu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Tue, Mar 04, 2025 at 09:04:01PM -0800, Nicolin Chen wrote: > Allow arm-smmu-v3-iommufd to call it for S2 cache invalidations. > > Signed-off-by: Nicolin Chen Reviewed-by: Pranjal Shrivastava Thanks > --- > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 2 ++ > drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 4 ++-- > 2 files changed, 4 insertions(+), 2 deletions(-) > > 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 e08c4ede4b2d..3336d196062c 100644 > --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h > +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h > @@ -984,6 +984,8 @@ void arm_smmu_install_ste_for_dev(struct arm_smmu_master *master, > int arm_smmu_cmdq_issue_cmdlist(struct arm_smmu_device *smmu, > struct arm_smmu_cmdq *cmdq, u64 *cmds, int n, > bool sync); > +int arm_smmu_cmdq_issue_cmd_with_sync(struct arm_smmu_device *smmu, > + struct arm_smmu_cmdq_ent *ent); > > #ifdef CONFIG_ARM_SMMU_V3_SVA > bool arm_smmu_sva_supported(struct arm_smmu_device *smmu); > 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 310bb4109ec9..0462eb1b2912 100644 > --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c > +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c > @@ -929,8 +929,8 @@ static int arm_smmu_cmdq_issue_cmd(struct arm_smmu_device *smmu, > return __arm_smmu_cmdq_issue_cmd(smmu, ent, false); > } > > -static int arm_smmu_cmdq_issue_cmd_with_sync(struct arm_smmu_device *smmu, > - struct arm_smmu_cmdq_ent *ent) > +int arm_smmu_cmdq_issue_cmd_with_sync(struct arm_smmu_device *smmu, > + struct arm_smmu_cmdq_ent *ent) > { > return __arm_smmu_cmdq_issue_cmd(smmu, ent, true); > } > -- > 2.43.0 > >