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From: sashiko-bot@kernel.org
To: "Matthew Auld" <matthew.auld@intel.com>, intel-xe@lists.freedesktop.org
Subject: Re: [PATCH 2/3] drm/xe: Exclude imported dma-buf BOs from the TT budget
Date: Sat, 07 Nov 2026 17:36:57 +0000	[thread overview]
Message-ID: <sashiko-outbox-203113@kernel.org> (raw)
In-Reply-To: <20261107-oom-fun-v1-2-be9eb05b82ed@intel.com>

Thank you for your contribution! Sashiko AI review found 1 potential
issue to consider:
- [Low] drm/xe: commit message body describes outdated v1
  sys_mgr_sg_usage design
--

commit 2d9d97becda400684fed39733d2674585c59c2c5
Author: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>

drm/xe: Exclude imported dma-buf BOs from the TT budget

This commit excludes imported dma-buf BOs (ttm_bo_type_sg) from being
charged against the system TTM resource manager budget by tracking
charged allocations in xe->mem.sys_mgr_charged.

> Track the bytes of ttm_bo_type_sg BOs in a new per-device counter,
> mem.sys_mgr_sg_usage, and subtract it from the usage compared against
> the budget. The counter is maintained in xe_ttm_sys_mgr_new() and
> xe_ttm_sys_mgr_del().

[Severity: Low]
This isn't a bug, but this paragraph still describes the v1 design
(tracking ttm_bo_type_sg BOs in mem.sys_mgr_sg_usage and subtracting
them from manager usage), whereas the patch tracks non-imported BOs
directly in mem.sys_mgr_charged.

-- 
Sashiko AI review · https://sashiko.dev/#/patchset/20261107-oom-fun-v1-0-be9eb05b82ed@intel.com?part=2

  reply	other threads:[~2026-11-07 17:37 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-07 17:26 [PATCH 0/3] Spurious OOM with P2P dma-buf imports on multi-GPU systems Matthew Auld
2026-11-07 17:26 ` [PATCH 1/3] drm/xe: don't allocate fake mmap offsets for imported dma-bufs Matthew Auld
2026-11-07 17:43   ` sashiko-bot
2026-11-07 17:26 ` [PATCH 2/3] drm/xe: Exclude imported dma-buf BOs from the TT budget Matthew Auld
2026-11-07 17:36   ` sashiko-bot [this message]
2026-11-07 17:26 ` [PATCH 3/3] drm/ttm, drm/xe: Drop the ttm_tt on null moves to VRAM Matthew Auld
2026-11-07 17:36 ` ✓ CI.KUnit: success for Spurious OOM with P2P dma-buf imports on multi-GPU systems Patchwork
2026-11-07 18:10 ` ✓ Xe.CI.BAT: " Patchwork
2026-11-08  8:22 ` ✓ Xe.CI.FULL: " Patchwork

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