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

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  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

#84840 — Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU

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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


-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (500, 'testing'), (100, 'unstable'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.3-amd64 (SMP w/16 CPU threads; PREEMPT)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-amd64 depends on:
pn  linux-image-6.11.10-amd64  <none>
pn  linux-image-6.12.3-amd64   <none>
pn  linux-image-6.5.0-5-amd64  <none>

linux-image-amd64 recommends no packages.

linux-image-amd64 suggests no packages.

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#85040

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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

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#85041 — Processed: Re: Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU

Processing control commands:

> merge -1 1015871
Bug #1090072 [src:linux] linux-image-amd64: Enable P2P and HMM feature for AMDGPU
Bug #1015871 [src:linux] Please enable CONFIG_PCI_P2PDMA
Marked as found in versions linux/6.12.3-1.
Added tag(s) patch.
Merged 1015871 1090072

-- 
1015871: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1015871
1090072: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1090072
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#86445 — Bug#1090072: marked as done (linux-image-amd64: Enable P2P and HMM feature for AMDGPU)

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Your message dated Fri, 14 Mar 2025 21:03:12 +0000
with message-id <E1ttCBU-003YaX-VG@fasolo.debian.org>
and subject line Bug#1015871: fixed in linux 6.13.7-1~exp1
has caused the Debian Bug report #1015871,
regarding linux-image-amd64: Enable P2P and HMM feature for AMDGPU
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
1015871: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1015871
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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