Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU

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From	Uwe Kleine-König <ukleinek@debian.org>
Newsgroups	linux.debian.bugs.dist, linux.debian.kernel
Subject	Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU
Date	Mon, 06 Jan 2025 15:10:01 +0100
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Control: merge -1 1015871

Hello,

On Mon, Dec 16, 2024 at 12:05:23PM +0800, Yiyang Wu wrote:
> Package: linux-image-amd64
> Version: 6.12.3-1
> Severity: wishlist
> Tags: patch
> X-Debbugs-Cc: Benda Xu <orv@debian.org>
> 
> The peer to peer (P2P) data transfer is important for programs that use multi-GPU. 
> 
> The heterogeneous memory management (HMM), is a mechanism to treat CPU memory
> and GPU memory in a joint address space. It is an essential part of Unified
> Memory in heterogeneous computing, which frees the developer from manually
> handling data migration across different types of memories. Data will be
> automatically transferred and cached into the memory of the compute node. This
> programming model is gaining popularity, and for AMD GPU and ROCm, cards that
> support xnack replay can utilize this model if CONFIG_HSA_AMD_SVM=y

This request came up already in the past, see https://bugs.debian.org/1015871

Back then this looked more like some niche thing that mostly helps people
who need a custom kernel anyhow. Does this new bug report mean that
things have changed?

Best regards
Uwe

Thread

Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU Yiyang Wu <xgreenlandforwyy@gmail.com> - 2024-12-16 05:10 +0100
  Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU Uwe Kleine-König <ukleinek@debian.org> - 2025-01-06 15:10 +0100
  Processed: Re: Bug#1090072: linux-image-amd64: Enable P2P and HMM  feature for AMDGPU "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-01-06 15:10 +0100
  Bug#1090072: marked as done (linux-image-amd64: Enable P2P and  HMM feature for AMDGPU) "Debian Bug Tracking System" <owner@bugs.debian.org> - 2025-03-14 22:10 +0100

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