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 43187C4332F for ; Fri, 3 Nov 2023 15:32:53 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 041A510E16C; Fri, 3 Nov 2023 15:32:53 +0000 (UTC) Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4401D10E16C for ; Fri, 3 Nov 2023 15:32:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1699025571; x=1730561571; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=1izvJuQSi16w/H5CofpzWUSCOn4iVq1eH57Gy1Ot1nM=; b=kPd0FHV6MI5lIp0JdhyrdraYSsPAH6QHSGxpN+59d79KddYKYfADUw1Z +UbCOUBPYKluFajIy9i2bj6Nv6Fw9W3mg1LR/AUNXzswQfczq8a2Jt6dW pDrdXIn2qN0d57nufNOEu/iygDGb/rotJNHZ2TVs7BNNG/FB5shWLsLR8 F58GKG/uhAPMMpXkc02jyRqFpHPwD6JeWBmEr9Ls0eJXPnTzRLuy+lmEn UNeFWo/eWmMsoDgKFpLNkKmloiHtxmQL4b601FLSBLZmHwirUqyzEShCY dYGj0x8+7gmNplPlDtAT6FhsrGNxjz1ljv0IJ+l3s15kW3IjqtQSy5uFU A==; X-IronPort-AV: E=McAfee;i="6600,9927,10883"; a="387853729" X-IronPort-AV: E=Sophos;i="6.03,273,1694761200"; d="scan'208";a="387853729" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2023 08:32:51 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10883"; a="765272637" X-IronPort-AV: E=Sophos;i="6.03,273,1694761200"; d="scan'208";a="765272637" Received: from shouweis-mobl1.ccr.corp.intel.com (HELO fedora..) ([10.249.254.68]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Nov 2023 08:32:50 -0700 From: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= To: intel-xe@lists.freedesktop.org Date: Fri, 3 Nov 2023 16:32:18 +0100 Message-ID: <20231103153234.30407-2-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231103153234.30407-1-thomas.hellstrom@linux.intel.com> References: <20231103153234.30407-1-thomas.hellstrom@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: [Intel-xe] [CI v8 02/18] drm/gpuvm: don't always WARN in drm_gpuvm_check_overflow() 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" From: Danilo Krummrich Don't always WARN in drm_gpuvm_check_overflow() and separate it into a drm_gpuvm_check_overflow() and a dedicated drm_gpuvm_warn_check_overflow() variant. This avoids printing warnings due to invalid userspace requests. Signed-off-by: Danilo Krummrich --- drivers/gpu/drm/drm_gpuvm.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/drm_gpuvm.c b/drivers/gpu/drm/drm_gpuvm.c index b378554b81ac..1cbeb4169f9c 100644 --- a/drivers/gpu/drm/drm_gpuvm.c +++ b/drivers/gpu/drm/drm_gpuvm.c @@ -614,12 +614,18 @@ static int __drm_gpuva_insert(struct drm_gpuvm *gpuvm, static void __drm_gpuva_remove(struct drm_gpuva *va); static bool -drm_gpuvm_check_overflow(struct drm_gpuvm *gpuvm, u64 addr, u64 range) +drm_gpuvm_check_overflow(u64 addr, u64 range) { u64 end; - return drm_WARN(gpuvm->drm, check_add_overflow(addr, range, &end), - "GPUVA address limited to %zu bytes.\n", sizeof(end)); + return check_add_overflow(addr, range, &end); +} + +static bool +drm_gpuvm_warn_check_overflow(struct drm_gpuvm *gpuvm, u64 addr, u64 range) +{ + return drm_WARN(gpuvm->drm, drm_gpuvm_check_overflow(addr, range), + "GPUVA address limited to %zu bytes.\n", sizeof(addr)); } static bool @@ -647,7 +653,7 @@ static bool drm_gpuvm_range_valid(struct drm_gpuvm *gpuvm, u64 addr, u64 range) { - return !drm_gpuvm_check_overflow(gpuvm, addr, range) && + return !drm_gpuvm_check_overflow(addr, range) && drm_gpuvm_in_mm_range(gpuvm, addr, range) && !drm_gpuvm_in_kernel_node(gpuvm, addr, range); } @@ -682,7 +688,7 @@ drm_gpuvm_init(struct drm_gpuvm *gpuvm, const char *name, gpuvm->ops = ops; gpuvm->drm = drm; - drm_gpuvm_check_overflow(gpuvm, start_offset, range); + drm_gpuvm_warn_check_overflow(gpuvm, start_offset, range); gpuvm->mm_start = start_offset; gpuvm->mm_range = range; @@ -691,8 +697,8 @@ drm_gpuvm_init(struct drm_gpuvm *gpuvm, const char *name, gpuvm->kernel_alloc_node.va.addr = reserve_offset; gpuvm->kernel_alloc_node.va.range = reserve_range; - if (likely(!drm_gpuvm_check_overflow(gpuvm, reserve_offset, - reserve_range))) + if (likely(!drm_gpuvm_warn_check_overflow(gpuvm, reserve_offset, + reserve_range))) __drm_gpuva_insert(gpuvm, &gpuvm->kernel_alloc_node); } } -- 2.41.0