Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages

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To: Jason Gunthorpe <jgg@xxxxxxxx>
Subject: Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
From: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Thu, 17 Oct 2024 06:12:55 -0700
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Yonatan Maman <ymaman@xxxxxxxxxx>, nouveau@xxxxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-rdma@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, herbst@xxxxxxxxxx, lyude@xxxxxxxxxx, dakr@xxxxxxxxxx, airlied@xxxxxxxxx, simona@xxxxxxxx, leon@xxxxxxxxxx, jglisse@xxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, apopple@xxxxxxxxxx, bskeggs@xxxxxxxxxx, Gal Shalom <GalShalom@xxxxxxxxxx>
In-reply-to: <20241017130539.GA897978@ziepe.ca>
References: <20241015152348.3055360-1-ymaman@nvidia.com> <20241015152348.3055360-2-ymaman@nvidia.com> <Zw9F2uiq6-znYmTk@infradead.org> <20241016154428.GD4020792@ziepe.ca> <Zw_sn_DdZRUw5oxq@infradead.org> <20241016174445.GF4020792@ziepe.ca> <ZxD71D66qLI0qHpW@infradead.org> <20241017130539.GA897978@ziepe.ca>

On Thu, Oct 17, 2024 at 10:05:39AM -0300, Jason Gunthorpe wrote:
> Broadly I think whatever flow NVMe uses for P2P will apply to ODP as
> well.

ODP is a lot simpler than NVMe for P2P actually :(

Follow-Ups:
- Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
  - From: Jason Gunthorpe

References:
- [PATCH v1 0/4] GPU Direct RDMA (P2P DMA) for Device Private Pages
  - From: Yonatan Maman
- [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
  - From: Yonatan Maman
- Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
  - From: Christoph Hellwig
- Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
  - From: Jason Gunthorpe
- Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
  - From: Christoph Hellwig
- Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
  - From: Jason Gunthorpe
- Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
  - From: Christoph Hellwig
- Re: [PATCH v1 1/4] mm/hmm: HMM API for P2P DMA to device zone pages
  - From: Jason Gunthorpe

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