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 71066D41D6A for ; Thu, 11 Dec 2025 17:00:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D3C6910E89A; Thu, 11 Dec 2025 17:00:50 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="TwGEHZHZ"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4A26010E890; Thu, 11 Dec 2025 17:00:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1765472450; x=1797008450; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ZLHkSf8pZUY1W/z1QuY6EQAkbgWR58WwjGN1oHAYR6c=; b=TwGEHZHZmbpUZDIf0TNp1bDUR3ANIWxXbGcfMHJ83ZvjWYhnaEL8Z+ra cv5uKxdwhZd4D2kODh1pACb6IOkyp3aVE4dqXqjMhhNSlfMtFMU+E8uZd AvQZgWDkU/2pK0O+eKYm5d4PKLn4V/a4ocgG7vfeZdf7Jnq6+pG41+38Q 8SfRD67DXsH8RkPoUnUCdDl0xcjbqpwYqygX9dXwlLn+ohJBBuOzawfxN UAHbcLPXM8ALMfswnV7T3gJ0Tdm7zVl3l4+6Q5sRORNrbmg2yvBd/Hmov ngR3uttuNBQ+pequUvyZm5LjDtQ6hAfsV3fep4wgeNnNrDrdhWAqJgyw8 w==; X-CSE-ConnectionGUID: 0r5px+WbRaeWbFd2z4ld5A== X-CSE-MsgGUID: O92Tqaj3SmmbnCkMHLBvEQ== X-IronPort-AV: E=McAfee;i="6800,10657,11639"; a="71083425" X-IronPort-AV: E=Sophos;i="6.21,141,1763452800"; d="scan'208";a="71083425" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2025 09:00:50 -0800 X-CSE-ConnectionGUID: P/4U/zMGSQS84/OMk5Wiqg== X-CSE-MsgGUID: 0U0oN+7kSrOLKLwbJhJyOQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,141,1763452800"; d="scan'208";a="196849823" Received: from egrumbac-mobl6.ger.corp.intel.com (HELO fedora) ([10.245.244.197]) by orviesa007-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Dec 2025 09:00:47 -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 v4 20/22] drm/xe: Use drm_gpusvm_scan_mm() Date: Thu, 11 Dec 2025 17:59:07 +0100 Message-ID: <20251211165909.219710-21-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251211165909.219710-1-thomas.hellstrom@linux.intel.com> References: <20251211165909.219710-1-thomas.hellstrom@linux.intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 2fa73143fcd5..22281d69e26a 100644 --- a/drivers/gpu/drm/xe/xe_svm.c +++ b/drivers/gpu/drm/xe/xe_svm.c @@ -1625,11 +1625,23 @@ 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