From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 91D83C43602 for ; Mon, 6 Jul 2026 02:49:06 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4470410E719; Mon, 6 Jul 2026 02:49:06 +0000 (UTC) Received: from us-smtp-delivery-44.mimecast.com (us-smtp-delivery-44.mimecast.com [205.139.111.44]) by gabe.freedesktop.org (Postfix) with ESMTPS id 55B5410E71A for ; Mon, 6 Jul 2026 02:49:04 +0000 (UTC) Received: from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-160-PKOUoRp5OH6vp7_ivb1ATw-1; Sun, 05 Jul 2026 22:42:39 -0400 X-MC-Unique: PKOUoRp5OH6vp7_ivb1ATw-1 X-Mimecast-MFC-AGG-ID: PKOUoRp5OH6vp7_ivb1ATw_1783305758 Received: from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 0DF051955F73; Mon, 6 Jul 2026 02:42:38 +0000 (UTC) Received: from dreadlord.redhat.com (unknown [10.67.32.13]) by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 696D23000714; Mon, 6 Jul 2026 02:42:30 +0000 (UTC) From: Dave Airlie To: dri-devel@lists.freedesktop.org, tj@kernel.org, christian.koenig@amd.com, Johannes Weiner , Michal Hocko , Roman Gushchin , Shakeel Butt , Muchun Song Cc: cgroups@vger.kernel.org, Thomas Hellstrom , Waiman Long , simona@ffwll.ch, intel-xe@lists.freedesktop.org Subject: [PATCH 08/10] amdgpu: add support for memory cgroups Date: Mon, 6 Jul 2026 12:36:17 +1000 Message-ID: <20260706024122.853329-9-airlied@gmail.com> In-Reply-To: <20260706024122.853329-1-airlied@gmail.com> References: <20260706024122.853329-1-airlied@gmail.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: 4mciqM0zx9ts8r8f0Hf0ZZ8g5_BXXLCis6w94lr0zvc_1783305758 X-Mimecast-Originator: gmail.com Content-Transfer-Encoding: quoted-printable content-type: text/plain; charset=WINDOWS-1252; x-default=true X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" From: Dave Airlie This adds support for adding a obj cgroup to a buffer object, and passing in the placement flags to make sure it's accounted properly. Signed-off-by: Dave Airlie --- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 13 +++++++++---- drivers/gpu/drm/amd/amdgpu/amdgpu_object.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 3 +++ mm/memcontrol.c | 1 + 5 files changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/= amdgpu/amdgpu_gem.c index 6a0699746fbc..38f8b3300989 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -188,6 +188,7 @@ int amdgpu_gem_object_create(struct amdgpu_device *adev= , unsigned long size, =09bp.domain =3D initial_domain; =09bp.bo_ptr_size =3D sizeof(struct amdgpu_bo); =09bp.xcp_id_plus1 =3D xcp_id_plus1; +=09bp.objcg =3D get_obj_cgroup_from_current(); =20 =09r =3D amdgpu_bo_create_user(adev, &bp, &ubo); =09if (r) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/a= md/amdgpu/amdgpu_object.c index f98bfba59a2c..e4fb1a1d699b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -159,7 +159,7 @@ void amdgpu_bo_placement_from_domain(struct amdgpu_bo *= abo, u32 domain) =09=09places[c].mem_type =3D =09=09=09abo->flags & AMDGPU_GEM_CREATE_PREEMPTIBLE ? =09=09=09AMDGPU_PL_PREEMPT : TTM_PL_TT; -=09=09places[c].flags =3D 0; +=09=09places[c].flags =3D TTM_PL_FLAG_MEMCG; =09=09/* =09=09 * When GTT is just an alternative to VRAM make sure that we =09=09 * only use it as fallback and still try to fill up VRAM first. @@ -174,7 +174,7 @@ void amdgpu_bo_placement_from_domain(struct amdgpu_bo *= abo, u32 domain) =09=09places[c].fpfn =3D 0; =09=09places[c].lpfn =3D 0; =09=09places[c].mem_type =3D TTM_PL_SYSTEM; -=09=09places[c].flags =3D 0; +=09=09places[c].flags =3D TTM_PL_FLAG_MEMCG; =09=09c++; =09} =20 @@ -654,16 +654,21 @@ int amdgpu_bo_create(struct amdgpu_device *adev, =09=09size =3D ALIGN(size, PAGE_SIZE); =09} =20 -=09if (!amdgpu_bo_validate_size(adev, size, bp->domain)) +=09if (!amdgpu_bo_validate_size(adev, size, bp->domain)) { +=09=09obj_cgroup_put(bp->objcg); =09=09return -ENOMEM; +=09} =20 =09BUG_ON(bp->bo_ptr_size < sizeof(struct amdgpu_bo)); =20 =09*bo_ptr =3D NULL; =09bo =3D kvzalloc(bp->bo_ptr_size, GFP_KERNEL); -=09if (bo =3D=3D NULL) +=09if (bo =3D=3D NULL) { +=09=09obj_cgroup_put(bp->objcg); =09=09return -ENOMEM; +=09} =09drm_gem_private_object_init(adev_to_drm(adev), &bo->tbo.base, size); +=09ttm_bo_set_cgroup(&bo->tbo, bp->objcg); /* hand the reference to the tt= m bo */ =09bo->tbo.base.funcs =3D &amdgpu_gem_object_funcs; =09bo->vm_bo =3D NULL; =09bo->preferred_domains =3D bp->preferred_domain ? bp->preferred_domain : diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h b/drivers/gpu/drm/a= md/amdgpu/amdgpu_object.h index 4d68732d6223..1bc757e14292 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.h @@ -55,6 +55,7 @@ struct amdgpu_bo_param { =09enum ttm_bo_type=09=09type; =09bool=09=09=09=09no_wait_gpu; =09struct dma_resv=09=09=09*resv; +=09struct obj_cgroup *objcg; =09void=09=09=09=09(*destroy)(struct ttm_buffer_object *bo); =09/* xcp partition number plus 1, 0 means any partition */ =09int8_t=09=09=09=09xcp_id_plus1; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/= amdgpu/amdgpu_ttm.c index 8062b3d61157..1c8123c564ac 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -155,11 +155,14 @@ static void amdgpu_evict_flags(struct ttm_buffer_obje= ct *bo, =09=09=09amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_GTT | =09=09=09=09=09=09=09AMDGPU_GEM_DOMAIN_CPU); =09=09} +=09=09for (int i =3D 0; i < abo->placement.num_placement; i++) +=09=09=09abo->placements[i].flags &=3D ~TTM_PL_FLAG_MEMCG; =09=09break; =09case TTM_PL_TT: =09case AMDGPU_PL_PREEMPT: =09default: =09=09amdgpu_bo_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_CPU); +=09=09abo->placements[0].flags &=3D ~TTM_PL_FLAG_MEMCG; =09=09break; =09} =09*placement =3D abo->placement; diff --git a/mm/memcontrol.c b/mm/memcontrol.c index 4c682b91cbbe..625de4a287eb 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -3032,6 +3032,7 @@ __always_inline struct obj_cgroup *current_obj_cgroup= (void) =20 =09return rcu_dereference_check(root_mem_cgroup->nodeinfo[nid]->objcg, 1); } +EXPORT_SYMBOL_GPL(current_obj_cgroup); =20 struct obj_cgroup *get_obj_cgroup_from_folio(struct folio *folio) { --=20 2.54.0