From: Jason Gunthorpe <jgg@nvidia.com>
To: Nicolin Chen <nicolinc@nvidia.com>
Cc: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org,
jpb@kernel.org, praan@google.com, miko.lenczewski@arm.com,
linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, patches@lists.linux.dev
Subject: Re: [PATCH v1 2/9] iommu/arm-smmu-v3: Add alloc_id/free_id functions to arm_smmu_invs
Date: Fri, 2 Jan 2026 11:54:15 -0400 [thread overview]
Message-ID: <20260102155415.GB125162@nvidia.com> (raw)
In-Reply-To: <aUW78ZV2D5aM75yN@Asurada-Nvidia>
On Fri, Dec 19, 2025 at 12:56:17PM -0800, Nicolin Chen wrote:
> Again, my intention is to avoid iterating the array since merge
> and unref functions are already doing that in their first loops.
It is not a performance path, and double iterating like this is much
easier to implement with clearer error flows.
Jason
next prev parent reply other threads:[~2026-01-02 15:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-18 20:26 [PATCH v1 0/9] iommu/arm-smmu-v3: Share domain across SMMU/vSMMU instances Nicolin Chen
2025-12-18 20:26 ` [PATCH v1 1/9] iommu/arm-smmu-v3: Pass in ssid to arm_smmu_make_s1_cd() Nicolin Chen
2025-12-18 20:26 ` [PATCH v1 2/9] iommu/arm-smmu-v3: Add alloc_id/free_id functions to arm_smmu_invs Nicolin Chen
2025-12-19 17:05 ` Jason Gunthorpe
2025-12-19 20:56 ` Nicolin Chen
2026-01-02 15:54 ` Jason Gunthorpe [this message]
2025-12-30 18:52 ` Nicolin Chen
2025-12-31 19:48 ` Nicolin Chen
2026-01-02 15:57 ` Jason Gunthorpe
2025-12-18 20:26 ` [PATCH v1 3/9] iommu/arm-smmu-v3: Store ASIDs and VMID in arm_smmu_master Nicolin Chen
2025-12-19 15:16 ` Jason Gunthorpe
2025-12-19 19:17 ` Nicolin Chen
2025-12-18 20:26 ` [PATCH v1 4/9] iommu/arm-smmu-v3: Use alloc_id/free_id ops in arm_smmu_invs_merge/unref Nicolin Chen
2025-12-18 20:26 ` [PATCH v1 5/9] iommu/arm-smmu-v3: Install to CD/STE the ASID/VMID stored in the master Nicolin Chen
2025-12-18 20:26 ` [PATCH v1 6/9] iommu/arm-smmu-v3: Use dummy ASID/VMID in arm_smmu_master_build_invs() Nicolin Chen
2025-12-18 20:26 ` [PATCH v1 7/9] iommu/arm-smmu-v3: Remove free_fn argument from arm_smmu_invs_unref() Nicolin Chen
2025-12-18 20:26 ` [PATCH v1 8/9] iommu/arm-smmu-v3: Remove ASID/VMID from arm_smmu_domain Nicolin Chen
2025-12-18 20:26 ` [PATCH v1 9/9] iommu/arm-smmu-v3: Allow sharing domain across SMMUs Nicolin Chen
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