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 C9872D3C52B for ; Wed, 10 Dec 2025 11:09:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8940410E70B; Wed, 10 Dec 2025 11:09:25 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="ceDLIbi+"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3C81110E707; Wed, 10 Dec 2025 11:09:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1765364964; x=1796900964; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=tMSiVXFTLf6cq+vJXPeJr2t1/rvagbjlNpH3U/OGcRc=; b=ceDLIbi+vzqHurJM1H1xZpcMq0bO1TD2NbwgoQ7fpygCOb97YG32/n23 uyKbLq6ppjO6Y3Ifr1TsFebOd2h0TYGYp+0qh0WBrEZ20dAu7px2oQ+xG oyDWiVtyzvMXVWNZDzCA/YJxBrvuAd1FnVKn84cGdhM4QGgiZ8qJh1AZF XD2EOpDw5T2X9KDtM99lTimYFKwAossEsvHTLHvCONPK+/MovDOYZweCN dbsDVJOt6w3u91Efs5r8nOtgH2PQtAyaPDgNwBqDDVOUsgxY9E9XesEb/ YHTNsj3NAv1X8OyVxSgaBJ56Q7y+0MkFfcH6JO2WRHMG87YL9W6MnWEii w==; X-CSE-ConnectionGUID: 3+28NzSUT2CXxmo351YBhA== X-CSE-MsgGUID: s/+cuWDWRn6Vo7BQNQaFXA== X-IronPort-AV: E=McAfee;i="6800,10657,11637"; a="67221903" X-IronPort-AV: E=Sophos;i="6.20,263,1758610800"; d="scan'208";a="67221903" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Dec 2025 03:09:24 -0800 X-CSE-ConnectionGUID: 3ehhx5y7StmZYu1ASLhl+Q== X-CSE-MsgGUID: DZPkZ42MRzy75dYkGIwSOg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,263,1758610800"; d="scan'208";a="196487248" Received: from rvuia-mobl.ger.corp.intel.com (HELO fedora) ([10.245.244.44]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Dec 2025 03:09:21 -0800 From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= To: intel-xe@lists.freedesktop.org Cc: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , dri-devel@lists.freedesktop.org, himal.prasad.ghimiray@intel.com, apopple@nvidia.com, airlied@gmail.com, Simona Vetter , felix.kuehling@amd.com, Matthew Brost , =?UTF-8?q?Christian=20K=C3=B6nig?= , dakr@kernel.org, "Mrozek, Michal" , Joonas Lahtinen Subject: [PATCH v3 20/22] drm/xe: Use drm_gpusvm_scan_mm() Date: Wed, 10 Dec 2025 12:07:40 +0100 Message-ID: <20251210110742.107575-21-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251210110742.107575-1-thomas.hellstrom@linux.intel.com> References: <20251210110742.107575-1-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 --- 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 efc4e53e8636..58107ba56534 100644 --- a/drivers/gpu/drm/xe/xe_svm.c +++ b/drivers/gpu/drm/xe/xe_svm.c @@ -1623,11 +1623,23 @@ 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