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 5DF07D767DA for ; Fri, 19 Dec 2025 11:35:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 21B8E10EF41; Fri, 19 Dec 2025 11:35:22 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="Hig1i1w+"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id 66EA710EF35; Fri, 19 Dec 2025 11:35:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1766144120; x=1797680120; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=BrX8gJpzEirXvnNpYBwfHzo04L4RMTFSsRI/4Z2fCCE=; b=Hig1i1w+wDZsxXSCiVk/iwvHrZUl54EpZkbpgjzHLlLPicJZTIVoFxtY Tx115MrB52+DXNZ6h6U/ATsQGfJB42qDKvFrVwto1VZlhI5YQ0z1Jy2VM /23/XsrCcRA3pDddSRf+aQoQZ2fpC9e0CAzxbzpcPVrx8dWWpNC/I1j9N EGDO49Tcye9j8PjOrQRCcUlQxGaEvqDxNphc6UxrwZa1ynwnGJs3jJ0XL bqn5u2/GCyLkZnZgW52/4c1vOmWFAxLtEDCMF2maINOQUErw4Y1tw5y+m wT5gI3+FM+QavQmHxHtto77+LYWQO7hM31FveevLNATQtZx0Z1KobOJQb g==; X-CSE-ConnectionGUID: 9YK3HmUERamFVetbWuoZ9A== X-CSE-MsgGUID: Ek4rcgzFQx69GVNYt0+VCw== X-IronPort-AV: E=McAfee;i="6800,10657,11646"; a="79224619" X-IronPort-AV: E=Sophos;i="6.21,161,1763452800"; d="scan'208";a="79224619" Received: from orviesa003.jf.intel.com ([10.64.159.143]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Dec 2025 03:35:20 -0800 X-CSE-ConnectionGUID: zCT7rFYPSLayzQ2ZRC7HTg== X-CSE-MsgGUID: onFhz1IfTECI/vshUkVwLg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,161,1763452800"; d="scan'208";a="203005821" Received: from egrumbac-mobl6.ger.corp.intel.com (HELO fedora) ([10.245.244.251]) by ORVIESA003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Dec 2025 03:35:17 -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 v6 21/24] drm/xe: Use drm_gpusvm_scan_mm() Date: Fri, 19 Dec 2025 12:33:17 +0100 Message-ID: <20251219113320.183860-22-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251219113320.183860-1-thomas.hellstrom@linux.intel.com> References: <20251219113320.183860-1-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 3ec32f9805e3..ed4afb386ba2 100644 --- a/drivers/gpu/drm/xe/xe_svm.c +++ b/drivers/gpu/drm/xe/xe_svm.c @@ -1590,11 +1590,23 @@ 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