From: Nicolin Chen <nicolinc@nvidia.com>
To: Jason Gunthorpe <jgg@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>,
<zhangzekun11@huawei.com>, <linux-arm-kernel@lists.infradead.org>,
<iommu@lists.linux.dev>, <linux-kernel@vger.kernel.org>,
<patches@lists.linux.dev>
Subject: Re: [PATCH rfcv1 4/8] iommu/arm-smmu-v3: Introduce a per-domain arm_smmu_invs array
Date: Mon, 8 Sep 2025 11:20:44 -0700 [thread overview]
Message-ID: <aL8efIbaUl2xxClD@nvidia.com> (raw)
In-Reply-To: <20250908155149.GD789684@nvidia.com>
On Mon, Sep 08, 2025 at 12:51:49PM -0300, Jason Gunthorpe wrote:
> On Sat, Sep 06, 2025 at 01:16:45AM -0700, Nicolin Chen wrote:
> > > /*
> > > * A sorted array allows batching invalidations together for fewer SYNCs.
> > > * Also, ATS must follow the ASID/VMID invalidation SYNC.
> > > */
> > > sort_nonatomic(new_invs->inv, new_invs->num_invs,
> > > sizeof(add_invs->inv[0]), arm_smmu_invs_cmp, NULL);
> > > return new_invs;
>
> This should be deleted, merge sort always makes sorted lists.
I see. Dropping it.
Thanks
Nicolin
next prev parent reply other threads:[~2025-09-08 23:54 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-14 1:25 [PATCH rfcv1 0/8] iommu/arm-smmu-v3: Introduce an RCU-protected invalidation array Nicolin Chen
2025-08-14 1:25 ` [PATCH rfcv1 1/8] iommu/arm-smmu-v3: Clear cmds->num after arm_smmu_cmdq_batch_submit Nicolin Chen
2025-08-14 1:25 ` [PATCH rfcv1 2/8] iommu/arm-smmu-v3: Explicitly set smmu_domain->stage for SVA Nicolin Chen
2025-08-14 1:25 ` [PATCH rfcv1 3/8] iommu/arm-smmu-v3: Add an inline arm_smmu_domain_free() Nicolin Chen
2025-08-14 1:25 ` [PATCH rfcv1 4/8] iommu/arm-smmu-v3: Introduce a per-domain arm_smmu_invs array Nicolin Chen
2025-08-26 19:50 ` Jason Gunthorpe
2025-08-27 0:49 ` Nicolin Chen
2025-08-27 16:48 ` Jason Gunthorpe
2025-08-27 17:19 ` Nicolin Chen
2025-08-28 12:37 ` Jason Gunthorpe
2025-08-27 20:00 ` Jason Gunthorpe
2025-09-06 8:16 ` Nicolin Chen
2025-09-08 15:51 ` Jason Gunthorpe
2025-09-08 18:20 ` Nicolin Chen [this message]
2025-08-14 1:25 ` [PATCH rfcv1 5/8] iommu/arm-smmu-v3: Pre-allocate a per-master invalidation array Nicolin Chen
2025-08-26 19:56 ` Jason Gunthorpe
2025-09-06 7:45 ` Nicolin Chen
2025-09-08 15:36 ` Jason Gunthorpe
2025-08-14 1:25 ` [PATCH rfcv1 6/8] iommu/arm-smmu-v3: Populate smmu_domain->invs when attaching masters Nicolin Chen
2025-08-27 18:21 ` Jason Gunthorpe
2025-09-06 7:52 ` Nicolin Chen
2025-09-06 8:20 ` Nicolin Chen
2025-08-14 1:25 ` [PATCH rfcv1 7/8] iommu/arm-smmu-v3: Add arm_smmu_invs based arm_smmu_domain_inv_range() Nicolin Chen
2025-08-27 18:49 ` Jason Gunthorpe
2025-09-06 8:12 ` Nicolin Chen
2025-09-08 15:39 ` Jason Gunthorpe
2025-09-08 18:19 ` Nicolin Chen
2025-09-08 18:24 ` Jason Gunthorpe
2025-09-08 18:45 ` Nicolin Chen
2025-08-14 1:25 ` [PATCH rfcv1 8/8] iommu/arm-smmu-v3: Perform per-domain invalidations using arm_smmu_invs Nicolin Chen
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