linux-kernel - Re: [PATCH 02/11] iommu/vt-d: Optimize iotlb_sync

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Message-ID: <2867cd08-132b-40f9-bd19-707f9a78b2c7@linux.intel.com>
Date: Mon, 21 Jul 2025 09:57:55 +0800
From: Baolu Lu <baolu.lu@...ux.intel.com>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Joerg Roedel <joro@...tes.org>, iommu@...ts.linux.dev,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 02/11] iommu/vt-d: Optimize iotlb_sync_map for
 non-caching/non-RWBF modes

On 7/18/25 21:29, Jason Gunthorpe wrote:
> On Fri, Jul 18, 2025 at 10:56:24AM +0800, Baolu Lu wrote:
> 
>> How about the following changes (compiled but not tested)?
> Yes, exactly what I was thinking!

I will submit a formal patch.

> 
> That leaves the cache tag linked list race..
> 
> Nicolin is working on a neat solution for SMMU I wonder if we can
> reuse it here too..

Okay, let's wait and see.

Thanks,
baolu