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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 43DFEC433EF for ; Fri, 18 Feb 2022 19:42:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237616AbiBRTmt (ORCPT ); Fri, 18 Feb 2022 14:42:49 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:52394 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237590AbiBRTmm (ORCPT ); Fri, 18 Feb 2022 14:42:42 -0500 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 14A19D226F for ; Fri, 18 Feb 2022 11:42:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1645213345; x=1676749345; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version; bh=baOXokhByXXziWZwCqa3Bh4RX/PKcroubuFVmmtj6zE=; b=dRU8lUmu1CzSWq80Hkn/nBmRgFeR2dB9Q1YT6RR4vdDV4Mejvex/oUXH HGgn6xT6F3qM7x0ld4dw2oTcNNmSzvP32h6kD4pXadjksdCppwaY03XXV 6lqXCPFDLWpmrqveepwO+/p4aLiyvgB7pU+tGAWjb/Bu/wzXpqfYD1t/z kRYYU9QVW9Ontp5a7UJruuVxdBNCHMM9ZQkKlxM0OZalbxxcLY6xU6hBt 4RRXmvUKOVkELD1ovqywEYV9cMET2PAQ+gMQclkd3hEScVZWZ7yHBaFE+ aXsBFgjpON0q9/jDE1HAzqZDMHezffs/2u109jkmWMPvGB7DP2j2TyB6M Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10262"; a="251144521" X-IronPort-AV: E=Sophos;i="5.88,379,1635231600"; d="scan'208";a="251144521" Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Feb 2022 11:42:24 -0800 X-IronPort-AV: E=Sophos;i="5.88,379,1635231600"; d="scan'208";a="504111596" Received: from sporter-mobl.ger.corp.intel.com (HELO localhost) ([10.209.62.47]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Feb 2022 11:42:24 -0800 From: Jordan Justen To: Ramalingam C , Robert Beckett Cc: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter , Matthew Auld , Thomas =?utf-8?Q?Hellstr=C3=B6m?= , Simon Ser , Pekka Paalanen , Kenneth Graunke , mesa-dev@lists.freedesktop.org, Tony Ye , Slawomir Milczarek , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v8 5/5] drm/i915/uapi: document behaviour for DG2 64K support In-Reply-To: <20220218185540.GA7762@intel.com> References: <20220208203419.1094362-1-bob.beckett@collabora.com> <20220208203419.1094362-6-bob.beckett@collabora.com> <87ee40ojpc.fsf@jljusten-skl> <20220218134735.GB3646@intel.com> <78df4b73-9b2d-670b-a6b0-a45b476f1f0a@collabora.com> <20220218185540.GA7762@intel.com> Date: Fri, 18 Feb 2022 11:42:23 -0800 Message-ID: <875ypcneqo.fsf@jljusten-skl> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Ramalingam C writes: > On 2022-02-18 at 18:06:00 +0000, Robert Beckett wrote: >> >> If desired, we can make the wording clearer, maybe something like: >> >> "To keep things simple for userland, we mandate that any GTT mappings >> must be aligned to 2MB. The kernel will internally pad them out to the next >> 2MB boundary" > > Added the extra information in next version @ > https://patchwork.freedesktop.org/patch/475166/?series=100419&rev=1 > > Jordan, hope this explanation clears your doubt. Ok. It sounds like what we are doing in Mesa matches what is required by hardware and the kernel. Thanks. -Jordan