From: Jason Gunthorpe <jgg@nvidia.com>
To: Nicolin Chen <nicolinc@nvidia.com>
Cc: will@kernel.org, robin.murphy@arm.com, joro@8bytes.org,
jean-philippe@linaro.org, miko.lenczewski@arm.com,
balbirs@nvidia.com, peterz@infradead.org, smostafa@google.com,
kevin.tian@intel.com, praan@google.com,
linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev,
linux-kernel@vger.kernel.org, patches@lists.linux.dev
Subject: Re: [PATCH rfcv2 5/8] iommu/arm-smmu-v3: Pre-allocate a per-master invalidation array
Date: Tue, 30 Sep 2025 08:55:40 -0300 [thread overview]
Message-ID: <20250930115540.GF2942991@nvidia.com> (raw)
In-Reply-To: <aNrZ8z92CXs+J1pH@Asurada-Nvidia>
On Mon, Sep 29, 2025 at 12:11:47PM -0700, Nicolin Chen wrote:
> Hmm, I am not sure how it insures against anything concurrent.
Yes, not concurrent, just if someone is later looking at the IDs list
and expecting it to be in a certain order. I could not find such a
thing so I think it is safe.
Jason
next prev parent reply other threads:[~2025-09-30 11:56 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-08 23:26 [PATCH rfcv2 0/8] iommu/arm-smmu-v3: Introduce an RCU-protected invalidation array Nicolin Chen
2025-09-08 23:26 ` [PATCH rfcv2 1/8] iommu/arm-smmu-v3: Clear cmds->num after arm_smmu_cmdq_batch_submit Nicolin Chen
2025-09-09 3:16 ` Balbir Singh
2025-09-09 5:42 ` Nicolin Chen
2025-09-09 22:49 ` Balbir Singh
2025-09-10 2:03 ` Nicolin Chen
2025-09-10 2:56 ` Nicolin Chen
2025-09-08 23:26 ` [PATCH rfcv2 2/8] iommu/arm-smmu-v3: Explicitly set smmu_domain->stage for SVA Nicolin Chen
2025-09-09 3:25 ` Balbir Singh
2025-09-09 22:31 ` Balbir Singh
2025-09-10 2:06 ` Nicolin Chen
2025-09-24 21:07 ` Jason Gunthorpe
2025-09-08 23:26 ` [PATCH rfcv2 3/8] iommu/arm-smmu-v3: Add an inline arm_smmu_domain_free() Nicolin Chen
2025-09-24 21:08 ` Jason Gunthorpe
2025-09-08 23:26 ` [PATCH rfcv2 4/8] iommu/arm-smmu-v3: Introduce a per-domain arm_smmu_invs array Nicolin Chen
2025-09-09 13:01 ` kernel test robot
2025-09-20 0:26 ` Nicolin Chen
2025-09-24 21:29 ` Jason Gunthorpe
2025-09-29 18:52 ` Nicolin Chen
2025-09-30 12:13 ` Jason Gunthorpe
2025-09-08 23:26 ` [PATCH rfcv2 5/8] iommu/arm-smmu-v3: Pre-allocate a per-master invalidation array Nicolin Chen
2025-09-24 21:32 ` Jason Gunthorpe
2025-09-29 19:11 ` Nicolin Chen
2025-09-30 11:55 ` Jason Gunthorpe [this message]
2025-09-08 23:27 ` [PATCH rfcv2 6/8] iommu/arm-smmu-v3: Populate smmu_domain->invs when attaching masters Nicolin Chen
2025-09-24 21:42 ` Jason Gunthorpe
2025-09-29 20:52 ` Nicolin Chen
2025-09-30 12:12 ` Jason Gunthorpe
2025-09-30 20:19 ` Nicolin Chen
2025-10-01 16:25 ` Jason Gunthorpe
2025-10-01 17:16 ` Nicolin Chen
2025-09-08 23:27 ` [PATCH rfcv2 7/8] iommu/arm-smmu-v3: Add arm_smmu_invs based arm_smmu_domain_inv_range() Nicolin Chen
2025-09-24 21:56 ` Jason Gunthorpe
2025-09-29 21:00 ` Nicolin Chen
2025-09-08 23:27 ` [PATCH rfcv2 8/8] iommu/arm-smmu-v3: Perform per-domain invalidations using arm_smmu_invs Nicolin Chen
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