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From: Matthew Brost <matthew.brost@intel.com>
To: intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
	"Dave Chinner" <david@fromorbit.com>,
	"Qi Zheng" <zhengqi.arch@bytedance.com>,
	"Roman Gushchin" <roman.gushchin@linux.dev>,
	"Muchun Song" <muchun.song@linux.dev>,
	"David Hildenbrand" <david@kernel.org>,
	"Lorenzo Stoakes" <ljs@kernel.org>,
	"Liam R. Howlett" <Liam.Howlett@oracle.com>,
	"Vlastimil Babka" <vbabka@kernel.org>,
	"Mike Rapoport" <rppt@kernel.org>,
	"Suren Baghdasaryan" <surenb@google.com>,
	"Michal Hocko" <mhocko@suse.com>,
	"Johannes Weiner" <hannes@cmpxchg.org>,
	"Shakeel Butt" <shakeel.butt@linux.dev>,
	"Kairui Song" <kasong@tencent.com>,
	"Barry Song" <baohua@kernel.org>,
	"Axel Rasmussen" <axelrasmussen@google.com>,
	"Yuanchu Xie" <yuanchu@google.com>, "Wei Xu" <weixugc@google.com>,
	linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	"Thomas Hellström" <thomas.hellstrom@linux.intel.com>,
	"Carlos Santa" <carlos.santa@intel.com>,
	"Matthew Auld" <matthew.auld@intel.com>,
	"Andi Shyti" <andi.shyti@linux.intel.com>
Subject: [PATCH v5 4/5] drm/xe: Set TTM device beneficial_order to 9 (2M)
Date: Tue,  5 May 2026 20:32:59 -0700	[thread overview]
Message-ID: <20260506033300.3534883-5-matthew.brost@intel.com> (raw)
In-Reply-To: <20260506033300.3534883-1-matthew.brost@intel.com>

Set the TTM device beneficial_order to 9 (2M), which is the sweet
spot for Xe when attempting reclaim on system memory BOs, as it matches
the large GPU page size. This ensures reclaim is attempted at the most
effective order for the driver.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Kairui Song <kasong@tencent.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Axel Rasmussen <axelrasmussen@google.com>
Cc: Yuanchu Xie <yuanchu@google.com>
Cc: Wei Xu <weixugc@google.com>
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Carlos Santa <carlos.santa@intel.com>
Cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
---
 drivers/gpu/drm/xe/xe_device.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_device.c b/drivers/gpu/drm/xe/xe_device.c
index 4b45b617a039..3f719ab08d1c 100644
--- a/drivers/gpu/drm/xe/xe_device.c
+++ b/drivers/gpu/drm/xe/xe_device.c
@@ -500,7 +500,8 @@ struct xe_device *xe_device_create(struct pci_dev *pdev,
 
 	err = ttm_device_init(&xe->ttm, &xe_ttm_funcs, xe->drm.dev,
 			      xe->drm.anon_inode->i_mapping,
-			      xe->drm.vma_offset_manager, 0);
+			      xe->drm.vma_offset_manager,
+			      TTM_ALLOCATION_POOL_BENEFICIAL_ORDER(get_order(SZ_2M)));
 	if (WARN_ON(err))
 		return ERR_PTR(err);
 
-- 
2.34.1


  parent reply	other threads:[~2026-05-06  3:33 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-05-06  3:32 [PATCH v5 0/5] mm, drm/ttm, drm/xe: Avoid reclaim/eviction loops under fragmentation Matthew Brost
2026-05-06  3:32 ` [PATCH v5 1/5] mm: Wire up order in shrink_control Matthew Brost
2026-05-06  3:32 ` [PATCH v5 2/5] mm: Introduce opportunistic_compaction concept to vmscan and shrinkers Matthew Brost
2026-05-06  3:32 ` [PATCH v5 3/5] drm/ttm: Issue direct reclaim at beneficial_order Matthew Brost
2026-05-06  3:32 ` Matthew Brost [this message]
2026-05-06  3:33 ` [PATCH v5 5/5] drm/xe: Make use of shrink_control::opportunistic_compaction hint Matthew Brost
2026-05-06 14:38   ` Thomas Hellström

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