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 5924DD6D232 for ; Thu, 18 Dec 2025 16:22:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 15B8010EA56; Thu, 18 Dec 2025 16:22:39 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="JoFpJb89"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.13]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8FB0A10EA56; Thu, 18 Dec 2025 16:22:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1766074958; x=1797610958; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Nv7fF8vEqZYu1+XgwUxZpwgS1q8R7ctOIuotFqchpRE=; b=JoFpJb89BZu1eZu3zhhfEDhcyOPRCLv4x1RDwNXsCEeaYDCkdSiBYquW gS0Hj6BZgWmKspVsJd3kFZoQJ0x6rf8zE7Xn32jbcDBT7+HBUKMAIKE5E z2Yin028Dgce1I+N7qpBiUUh5PSEh25gtXIqMXmvqq7bktz7ebjtPUDaT Tmwy1PmXUlVc5X072p5B45XwH4MlrT/aWkGbFbd5mIISAEPBpt0ZJa3jj buNWgdlByAjT8KTTwa1PjZc9lYPl65bTWDuWqTr4wTps1EmGw34gjEYKb bT2UvDoxtifSSPsTbhrsfAQZ8vzNX1xzBDlu/TsXCl67moOm6AU83Bun5 A==; X-CSE-ConnectionGUID: wMnlDIKMQ36QgIQDluFskA== X-CSE-MsgGUID: qK11HyCmTVuWQsw5DXs0Tw== X-IronPort-AV: E=McAfee;i="6800,10657,11646"; a="70607695" X-IronPort-AV: E=Sophos;i="6.21,158,1763452800"; d="scan'208";a="70607695" 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 08:22:37 -0800 X-CSE-ConnectionGUID: BOmFtrGXS5+1c33Gq+7y9A== X-CSE-MsgGUID: NuvAR78nShi9t4jdZNLYaQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,158,1763452800"; d="scan'208";a="203705768" 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 08:22:34 -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 , dri-devel@lists.freedesktop.org, himal.prasad.ghimiray@intel.com, 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 17/24] drm/xe/vm: Add a couple of VM debug printouts Date: Thu, 18 Dec 2025 17:20:54 +0100 Message-ID: <20251218162101.605379-18-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" Add debug printouts that are valueable for pagemap prefetch, migration and page collection. v2: - Add additional debug prinouts around migration and page collection. - Require CONFIG_DRM_XE_DEBUG_VM. Signed-off-by: Thomas Hellström Reviewed-by: Matthew Brost #v1 --- drivers/gpu/drm/xe/xe_svm.c | 10 ++++++++++ drivers/gpu/drm/xe/xe_vm.c | 7 +++++++ 2 files changed, 17 insertions(+) diff --git a/drivers/gpu/drm/xe/xe_svm.c b/drivers/gpu/drm/xe/xe_svm.c index c46ced7a9d64..654c72e7e61c 100644 --- a/drivers/gpu/drm/xe/xe_svm.c +++ b/drivers/gpu/drm/xe/xe_svm.c @@ -1293,6 +1293,10 @@ static int __xe_svm_handle_pagefault(struct xe_vm *vm, struct xe_vma *vma, if (err) { range_debug(range, "PAGE FAULT - FAIL PAGE COLLECT"); goto out; + } else if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM)) { + drm_dbg(&vm->xe->drm, "After page collect data location is %sin \"%s\".\n", + xe_svm_range_has_pagemap(range, dpagemap) ? "" : "NOT ", + dpagemap ? dpagemap->drm->unique : "System."); } xe_svm_range_get_pages_us_stats_incr(gt, range, get_pages_start); @@ -1588,9 +1592,15 @@ 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; + xe_assert(range_to_vm(&range->base)->xe, range->base.pages.flags.migrate_devmem); range_debug(range, "ALLOCATE VRAM"); + if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM)) + drm_dbg(&xe->drm, "Request migration to device memory on \"%s\".\n", + dpagemap->drm->unique); + return drm_pagemap_populate_mm(dpagemap, xe_svm_range_start(range), xe_svm_range_end(range), range->base.gpusvm->mm, diff --git a/drivers/gpu/drm/xe/xe_vm.c b/drivers/gpu/drm/xe/xe_vm.c index 808b44fb0569..a07d8b53de66 100644 --- a/drivers/gpu/drm/xe/xe_vm.c +++ b/drivers/gpu/drm/xe/xe_vm.c @@ -2931,6 +2931,13 @@ static int prefetch_ranges(struct xe_vm *vm, struct xe_vma_op *op) if (!dpagemap) xe_svm_range_migrate_to_smem(vm, svm_range); + if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM)) { + drm_dbg(&vm->xe->drm, + "Prefetch pagemap is %s start 0x%016lx end 0x%016lx\n", + dpagemap ? dpagemap->drm->unique : "system", + xe_svm_range_start(svm_range), xe_svm_range_end(svm_range)); + } + if (xe_svm_range_needs_migrate_to_vram(svm_range, vma, dpagemap)) { err = xe_svm_alloc_vram(svm_range, &ctx, dpagemap); if (err) { -- 2.51.1