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 8717ED6D232 for ; Thu, 18 Dec 2025 16:22:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 496B810EA52; Thu, 18 Dec 2025 16:22:54 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="VeP84a/t"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4ACD410EA5A; Thu, 18 Dec 2025 16:22:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1766074973; x=1797610973; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=fX8UP3xOL9N2USK/cbpqr0M+oY80ZUn7GCJ19LxBfmc=; b=VeP84a/thxnW6oLS9Sn8TjT/6yfmCiyJ11+6741u2pJpynAHN25p4tyd ME7CyKsrPS6eDGIwa22bPt1NRWrzBF7HjWgcsl7vVOrAsgxHMg/VzjvYk LMUJqRTN0RqfSavjyKMnu4ANyqHo4ZuclO1wYJSdvc/npeFV7qmGAMWYy y5GII9bndQKDN8ia9JyBdX6BuAfh6NALoqnd1pHFTc8Zb5U77Hjr5286w 7+t7IwKd7MUrLAndgNEsfT6XQbaK02+t7uRa88BJGHybEIKnozrncPGzQ ri8+dCnXjUoMKMVUGUAW9jwL1SRPfCvh5perpzYfuXe4CjlUEfL1u1SAa A==; X-CSE-ConnectionGUID: HRq6JFdtTQyWQlEx6yT+NQ== X-CSE-MsgGUID: oyRTDZVSRcGTU/lhIFOmvw== X-IronPort-AV: E=McAfee;i="6800,10657,11646"; a="70607736" X-IronPort-AV: E=Sophos;i="6.21,158,1763452800"; d="scan'208";a="70607736" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Dec 2025 08:22:52 -0800 X-CSE-ConnectionGUID: Z2AU13kgQEyAIDIHva/pRw== X-CSE-MsgGUID: tXvbMBN4S5K0bNCagd2r8Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,158,1763452800"; d="scan'208";a="203705832" Received: from dhhellew-desk2.ger.corp.intel.com (HELO fedora) ([10.245.244.93]) by orviesa005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Dec 2025 08:22:49 -0800 From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= To: intel-xe@lists.freedesktop.org Cc: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , Matthew Brost , Himal Prasad Ghimiray , dri-devel@lists.freedesktop.org, apopple@nvidia.com, airlied@gmail.com, Simona Vetter , felix.kuehling@amd.com, =?UTF-8?q?Christian=20K=C3=B6nig?= , dakr@kernel.org, "Mrozek, Michal" , Joonas Lahtinen Subject: [PATCH v5 21/24] drm/xe: Use drm_gpusvm_scan_mm() Date: Thu, 18 Dec 2025 17:20:58 +0100 Message-ID: <20251218162101.605379-22-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251218162101.605379-1-thomas.hellstrom@linux.intel.com> References: <20251218162101.605379-1-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" Use drm_gpusvm_scan_mm() to avoid unnecessarily calling into drm_pagemap_populate_mm(); v3: - New patch. Signed-off-by: Thomas Hellström Reviewed-by: Matthew Brost Reviewed-by: Himal Prasad Ghimiray --- drivers/gpu/drm/xe/xe_svm.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c index f4254d45b32e..c83ba32f1175 100644 --- a/drivers/gpu/drm/xe/xe_svm.c +++ b/drivers/gpu/drm/xe/xe_svm.c @@ -1612,11 +1612,23 @@ struct drm_pagemap *xe_vma_resolve_pagemap(struct xe_vma *vma, struct xe_tile *t int xe_svm_alloc_vram(struct xe_svm_range *range, const struct drm_gpusvm_ctx *ctx, struct drm_pagemap *dpagemap) { - struct xe_device *xe = range_to_vm(&range->base)->xe; + struct xe_vm *vm = range_to_vm(&range->base); + enum drm_gpusvm_scan_result migration_state; + struct xe_device *xe = vm->xe; xe_assert(range_to_vm(&range->base)->xe, range->base.pages.flags.migrate_devmem); range_debug(range, "ALLOCATE VRAM"); + migration_state = drm_gpusvm_scan_mm(&range->base, + xe_svm_private_page_owner(vm, false), + dpagemap->pagemap); + + if (migration_state == DRM_GPUSVM_SCAN_EQUAL) { + if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM)) + drm_dbg(dpagemap->drm, "Already migrated!\n"); + return 0; + } + if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM)) drm_dbg(&xe->drm, "Request migration to device memory on \"%s\".\n", dpagemap->drm->unique); -- 2.51.1