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 ADAB9C7EE25 for ; Thu, 8 Jun 2023 05:59:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C0ECA10E537; Thu, 8 Jun 2023 05:59:29 +0000 (UTC) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id A01E210E537 for ; Thu, 8 Jun 2023 05:59:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1686203968; x=1717739968; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=Sl73sOaEWgKZ3chOAx8UuPqphgVCkPJC59Vo6kBzHbo=; b=hohzbIaRtIoQyOnrDa0JM/uL3BkVp8e6jrtVAnP0RFtdSvs5X8hEjcst Lg4dsfZqKCOjBW1pQktbC1xEOlDLTkfIjJ/9PYPGDI1Fx6ujgqDKukMrj 2VzkkdsIFgadTL0APS1NysWUkOgzvOw7LBiRQvwTVIb2BBSuCbQAliGvJ bC35MRLg49fpk+4zg86MeFHIzWLDsSPti5FlgeInDZmYPPsupv8BYtOkt rUvYCW7pwKoJTHWnpCkiHNKCCmB3TVCVLtgLQWvIuSoXyh40TexsoQap+ 8HeoSpZyLZpGxekNxdv+MPLE6XG0IVz+V6eaTga1nhmPIjj5HYdya0RbA Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10734"; a="385555163" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; d="scan'208";a="385555163" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jun 2023 22:59:28 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10734"; a="834030927" X-IronPort-AV: E=Sophos;i="6.00,226,1681196400"; d="scan'208";a="834030927" Received: from joe-255.igk.intel.com (HELO localhost) ([10.91.220.57]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jun 2023 22:59:26 -0700 Date: Thu, 8 Jun 2023 07:59:22 +0200 From: Stanislaw Gruszka To: Jeffrey Hugo Subject: Re: [PATCH 5/5] accel/ivpu: Mark 64 kB contiguous areas as contiguous in PTEs Message-ID: <20230608055922.GE324119@linux.intel.com> References: <20230518131605.650622-1-stanislaw.gruszka@linux.intel.com> <20230518131605.650622-6-stanislaw.gruszka@linux.intel.com> <71225f48-c1fc-9aef-2ef9-94e2ca5b1ab6@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <71225f48-c1fc-9aef-2ef9-94e2ca5b1ab6@quicinc.com> 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: , Cc: Karol Wachowski , Oded Gabbay , Jacek Lawrynowicz , dri-devel@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Thu, May 18, 2023 at 08:17:02AM -0600, Jeffrey Hugo wrote: > On 5/18/2023 7:16 AM, Stanislaw Gruszka wrote: > > From: Karol Wachowski > > > > Whenever KMD maps region larger than 64kB that is both aligned and > > contiguous, set contiguous bit (52) in MMU PTE descriptor for each page > > in that region. > > > > This allows to treat 16 contiguous pages as one and reduce > > number of MMU page walks required what results in lower latency. > > what -> which Fixed this and applied the set to drm-misc-next Thanks Stanislaw