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 2EBCCC38A02 for ; Mon, 31 Oct 2022 10:31:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230486AbiJaKbI (ORCPT ); Mon, 31 Oct 2022 06:31:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47856 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230177AbiJaKaq (ORCPT ); Mon, 31 Oct 2022 06:30:46 -0400 Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3416DFE2; Mon, 31 Oct 2022 03:30:44 -0700 (PDT) Received: by mail-ed1-x536.google.com with SMTP id v27so16806883eda.1; Mon, 31 Oct 2022 03:30:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject:from:to:cc :subject:date:message-id:reply-to; bh=GkfY3OKUEb1lL3Bfe/yjIjQzK3oeH8bSWlJlOHIXGiE=; b=WeCNjBWfLE2cu4AqgVxwuz6y7Jc+k9wx9QAUEcaN/D6fuaGxQw4tdi12AOUVu2PSiL R69NCNd+ZwVy43Y7EGQmTkTcZKYQ1YMV57e3VpOKXfP+Q95nxr2N4dbCxLt2O4IfeyUi PUI10Vm8TG1xc4D/SdcuMaJfdG1BhANXFuYlXesbsx6ju9lOaE6FdANboIZSdarrubvZ KVAdZKmyZz5nx7l8fJVAsodAwdgEGJKr85inPYUizIVaBkA6IaiP5vewm5TLe1ssL7Ze VpbnCI67O2aBlRV8LGI833AyrpY/QiiCn74K2TwOP1P4QXtf3j+aqMnOl2ihkMnBI6fj 7XNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=GkfY3OKUEb1lL3Bfe/yjIjQzK3oeH8bSWlJlOHIXGiE=; b=Rmg/SurCfxWqxYO9j9e6lxYp+ngH1bqTfD2jGbInu9/6EfOEQnIeBIAH7qkIiMNic7 BfjXKjllPIZJUN/SocjH8pdwbXNAXvCQvyCK+KnSWF2Wlvkj4m9Wq26GSSuDzR+hAFvl 9ODgwywpN+klK2tFDNekb7Oh3no2vh0ZiFznWXbyh2MuvrnJ6putLOJRsLYwHbrn4fS1 9oZcG4fXE+IPP6iyyB7LZ6bvKOzag05uCd+k8SrszUGwrCG5PZakHBDhW7cO9Wgw6axK LEwthn8QX5YaMuw1a2477wjmMbADlUOGWb1gMjcOZeMNoFZzaatT7XUZCXsWLqxacTGJ OUaw== X-Gm-Message-State: ACrzQf2Ed889D3uZSOe+qQXeSN7GUr6zhxzoSJGlO6raIuekxxeUPBwO SKvbcStxyESof+BKmKZlDDI= X-Google-Smtp-Source: AMsMyM58xPXb9PLApmoVRMOgeG546jQFtpocVEZzBFNb44Snwz4s4WgLZIsVLu9hSj1k5oigRg7rBg== X-Received: by 2002:a05:6402:174f:b0:463:12ed:3f8f with SMTP id v15-20020a056402174f00b0046312ed3f8fmr10249383edx.67.1667212243275; Mon, 31 Oct 2022 03:30:43 -0700 (PDT) Received: from [192.168.1.10] ([46.249.74.23]) by smtp.googlemail.com with ESMTPSA id re21-20020a170906d8d500b007415f8ffcbbsm2841076ejb.98.2022.10.31.03.30.42 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 31 Oct 2022 03:30:42 -0700 (PDT) Subject: Re: [PATCH 3/3] drm: omapdrm: Do no allocate non-scanout GEMs through DMM/TILER To: Tony Lindgren , "H. Nikolaus Schaller" Cc: tomba@kernel.org, airlied@linux.ie, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, merlijn@wizzup.org References: <1642587791-13222-1-git-send-email-ivo.g.dimitrov.75@gmail.com> <1642587791-13222-4-git-send-email-ivo.g.dimitrov.75@gmail.com> <4B3F8E50-3472-4AED-9A77-3E265DF8C928@goldelico.com> <0000784a-ae89-1081-0ec7-fc77d3381545@gmail.com> From: Ivaylo Dimitrov Message-ID: <71a44adf-a97b-07cd-18d3-026bef229a6d@gmail.com> Date: Mon, 31 Oct 2022 12:30:39 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org On 31.10.22 г. 12:13 ч., Tony Lindgren wrote: > * Ivaylo Dimitrov [221031 06:55]: >> On 31.10.22 г. 0:08 ч., H. Nikolaus Schaller wrote: >>> [ 39.419846] WARNING: CPU: 0 PID: 3673 at drivers/bus/omap_l3_noc.c:139 l3_interrupt_handler+0x23c/0x330 >>> [ 39.429914] 44000000.l3-noc:L3 Custom Error: MASTER MPU TARGET GPMC (Idle): Data Access in Supervisor mode during Functional access >>> ... >>> >> >> I have no idea what that error is supposed to mean. @Tony? > > The error above is GPMC related. It means GPMC is not properly clocked or powered > while trying to access it's IO range. > > Maybe DSS is somehow trying to access GPMC address space registers with DMA? The > GPMC address space starts at 0. Maybe the DSS DMA address is 0 somwhere? > Seems like, but I can't see how this can happen given that omap_fbdev_create() calls omap_gem_new() with OMAP_BO_SCANOUT. Unless something bad happens in omap_framebuffer_init(), which is called before omap_gem_pin() is called. Regards, Ivo > Regards, > > Tony > 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 CE0A6C38A02 for ; Mon, 31 Oct 2022 10:30:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 41FBC10E18C; Mon, 31 Oct 2022 10:30:47 +0000 (UTC) Received: from mail-ed1-x534.google.com (mail-ed1-x534.google.com [IPv6:2a00:1450:4864:20::534]) by gabe.freedesktop.org (Postfix) with ESMTPS id AF9E410E18C for ; Mon, 31 Oct 2022 10:30:44 +0000 (UTC) Received: by mail-ed1-x534.google.com with SMTP id z97so16731059ede.8 for ; Mon, 31 Oct 2022 03:30:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject:from:to:cc :subject:date:message-id:reply-to; bh=GkfY3OKUEb1lL3Bfe/yjIjQzK3oeH8bSWlJlOHIXGiE=; b=WeCNjBWfLE2cu4AqgVxwuz6y7Jc+k9wx9QAUEcaN/D6fuaGxQw4tdi12AOUVu2PSiL R69NCNd+ZwVy43Y7EGQmTkTcZKYQ1YMV57e3VpOKXfP+Q95nxr2N4dbCxLt2O4IfeyUi PUI10Vm8TG1xc4D/SdcuMaJfdG1BhANXFuYlXesbsx6ju9lOaE6FdANboIZSdarrubvZ KVAdZKmyZz5nx7l8fJVAsodAwdgEGJKr85inPYUizIVaBkA6IaiP5vewm5TLe1ssL7Ze VpbnCI67O2aBlRV8LGI833AyrpY/QiiCn74K2TwOP1P4QXtf3j+aqMnOl2ihkMnBI6fj 7XNw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:content-language:in-reply-to:mime-version :user-agent:date:message-id:from:references:cc:to:subject :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=GkfY3OKUEb1lL3Bfe/yjIjQzK3oeH8bSWlJlOHIXGiE=; b=cFK1/694U/WBO9GhCz4LkXb2X2EikPGhrTth+yf1KlFIwikMtcFx0TfYcs6HMbTtuP wVRjADmbi0YSXYgd42ldxGCOS5vax3v4RJYak3IJuurgCndEbvAFNJQXwJxJyq0NHzUV p6WnltbEJHFd0J7NKxkejMGkHXgATizaItsVTS6O9ZMbOp7XdCyj5/dST3nBJiPjfsBb p9aHXoMKSfYITV7ZlSNVSdtBPeJH/+8YyKGMnhHEbit0rlebp5C8qH73DneJZIoyLtm1 ORdi1yQTIivdk9Ztq0WvI3iw+JuhXwZnyQJ0IvGmUf4FYj8nB3YKtSsY1YBPY/r0PCCS XKsA== X-Gm-Message-State: ACrzQf0Cf6s01lvvtW3XvhCx/6GTqusgwC71zcYc2frsTAf9UHjXWbV4 9g5MEGUc8cmhRWtJo8FIA38= X-Google-Smtp-Source: AMsMyM58xPXb9PLApmoVRMOgeG546jQFtpocVEZzBFNb44Snwz4s4WgLZIsVLu9hSj1k5oigRg7rBg== X-Received: by 2002:a05:6402:174f:b0:463:12ed:3f8f with SMTP id v15-20020a056402174f00b0046312ed3f8fmr10249383edx.67.1667212243275; Mon, 31 Oct 2022 03:30:43 -0700 (PDT) Received: from [192.168.1.10] ([46.249.74.23]) by smtp.googlemail.com with ESMTPSA id re21-20020a170906d8d500b007415f8ffcbbsm2841076ejb.98.2022.10.31.03.30.42 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 31 Oct 2022 03:30:42 -0700 (PDT) Subject: Re: [PATCH 3/3] drm: omapdrm: Do no allocate non-scanout GEMs through DMM/TILER To: Tony Lindgren , "H. Nikolaus Schaller" References: <1642587791-13222-1-git-send-email-ivo.g.dimitrov.75@gmail.com> <1642587791-13222-4-git-send-email-ivo.g.dimitrov.75@gmail.com> <4B3F8E50-3472-4AED-9A77-3E265DF8C928@goldelico.com> <0000784a-ae89-1081-0ec7-fc77d3381545@gmail.com> From: Ivaylo Dimitrov Message-ID: <71a44adf-a97b-07cd-18d3-026bef229a6d@gmail.com> Date: Mon, 31 Oct 2022 12:30:39 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0 Thunderbird/60.6.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB 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: , Cc: tomba@kernel.org, airlied@linux.ie, merlijn@wizzup.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 31.10.22 г. 12:13 ч., Tony Lindgren wrote: > * Ivaylo Dimitrov [221031 06:55]: >> On 31.10.22 г. 0:08 ч., H. Nikolaus Schaller wrote: >>> [ 39.419846] WARNING: CPU: 0 PID: 3673 at drivers/bus/omap_l3_noc.c:139 l3_interrupt_handler+0x23c/0x330 >>> [ 39.429914] 44000000.l3-noc:L3 Custom Error: MASTER MPU TARGET GPMC (Idle): Data Access in Supervisor mode during Functional access >>> ... >>> >> >> I have no idea what that error is supposed to mean. @Tony? > > The error above is GPMC related. It means GPMC is not properly clocked or powered > while trying to access it's IO range. > > Maybe DSS is somehow trying to access GPMC address space registers with DMA? The > GPMC address space starts at 0. Maybe the DSS DMA address is 0 somwhere? > Seems like, but I can't see how this can happen given that omap_fbdev_create() calls omap_gem_new() with OMAP_BO_SCANOUT. Unless something bad happens in omap_framebuffer_init(), which is called before omap_gem_pin() is called. Regards, Ivo > Regards, > > Tony >