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 4D7ED10BA43A for ; Fri, 27 Mar 2026 08:16:58 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 05CCC10ECEB; Fri, 27 Mar 2026 08:16:58 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="QDTMBDSo"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5CEE310ED21; Fri, 27 Mar 2026 08:16:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1774599415; x=1806135415; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VCXy79fbBAt5QnmrzmMMuvOq3FMqVb404fQrx6b1TDI=; b=QDTMBDSo+YVdfWrmBy6I2uEOHZG4R7CD/mjMERNQn+xzvIEHMrhzDW08 Zw4md3MFqOtZG6XkKZjpvSqi3lgU7TyH0Zjr9vsFpiX1wK+EhlbzD3q2P CSFZRNmBWCYsj4LdKDUHQF2IDNrx+hYyCo4MTjfo/HEd+xhV/39BeNrGo nJ/2L3KptwZTBTn0NbA12pVdSXZFzXSLWeofIOgP8g+wXtr6c8hDCmLR5 6OopA5f7MsJAOQ/kiX/fxcsMPvHJv1Zon6hsKDPcYo8mvXZAE3fAlQTO7 Vt9cf7qrRLBakHkla0iRWc06dLsJmTEDwLypbfxNRp5YWYeGMh7TYpZmr A==; X-CSE-ConnectionGUID: f8cMXXRySQ6qZfBDlUkwjw== X-CSE-MsgGUID: y3Zsy+LlSr6vvToc0XZKgg== X-IronPort-AV: E=McAfee;i="6800,10657,11741"; a="75784090" X-IronPort-AV: E=Sophos;i="6.23,143,1770624000"; d="scan'208";a="75784090" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Mar 2026 01:16:55 -0700 X-CSE-ConnectionGUID: ZgzMJUUlRuaca/H2RVQkBQ== X-CSE-MsgGUID: 6pQoZOSvTGyqbF/NpGiVaA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,143,1770624000"; d="scan'208";a="255747944" Received: from egrumbac-mobl6.ger.corp.intel.com (HELO fedora) ([10.245.244.146]) by orviesa002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Mar 2026 01:16:50 -0700 From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= To: intel-xe@lists.freedesktop.org Cc: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , Natalie Vock , Johannes Weiner , Tejun Heo , =?UTF-8?q?Michal=20Koutn=C3=BD?= , cgroups@vger.kernel.org, Huang Rui , Matthew Brost , Matthew Auld , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Simona Vetter , David Airlie , =?UTF-8?q?Christian=20K=C3=B6nig?= , Alex Deucher , Rodrigo Vivi , dri-devel@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [PATCH 4/5] drm/xe: Wire up dmem cgroup reclaim for VRAM manager Date: Fri, 27 Mar 2026 09:15:59 +0100 Message-ID: <20260327081600.4885-5-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260327081600.4885-1-thomas.hellstrom@linux.intel.com> References: <20260327081600.4885-1-thomas.hellstrom@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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" Register the VRAM manager with the dmem cgroup reclaim infrastructure so that lowering dmem.max below current VRAM usage triggers TTM eviction rather than failing with -EBUSY. Assisted-by: GitHub Copilot:claude-sonnet-4.6 Signed-off-by: Thomas Hellström --- drivers/gpu/drm/xe/xe_ttm_vram_mgr.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c index 5fd0d5506a7e..1bdcb3fee901 100644 --- a/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c +++ b/drivers/gpu/drm/xe/xe_ttm_vram_mgr.c @@ -303,13 +303,6 @@ int __xe_ttm_vram_mgr_init(struct xe_device *xe, struct xe_ttm_vram_mgr *mgr, struct ttm_resource_manager *man = &mgr->manager; int err; - if (mem_type != XE_PL_STOLEN) { - const char *name = mem_type == XE_PL_VRAM0 ? "vram0" : "vram1"; - man->cg = drmm_cgroup_register_region(&xe->drm, name, size); - if (IS_ERR(man->cg)) - return PTR_ERR(man->cg); - } - man->func = &xe_ttm_vram_mgr_func; mgr->mem_type = mem_type; mutex_init(&mgr->lock); @@ -318,6 +311,18 @@ int __xe_ttm_vram_mgr_init(struct xe_device *xe, struct xe_ttm_vram_mgr *mgr, mgr->visible_avail = io_size; ttm_resource_manager_init(man, &xe->ttm, size); + + if (mem_type != XE_PL_STOLEN) { + const char *name = mem_type == XE_PL_VRAM0 ? "vram0" : "vram1"; + struct dmem_cgroup_region *cg = + drmm_cgroup_register_region(&xe->drm, name, size); + + if (IS_ERR(cg)) + return PTR_ERR(cg); + + ttm_resource_manager_set_dmem_region(man, cg); + } + err = gpu_buddy_init(&mgr->mm, man->size, default_page_size); if (err) return err; -- 2.53.0