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 X-Spam-Level: X-Spam-Status: No, score=0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FORGED_MUA_MOZILLA,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_HIGH,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 503A5C43143 for ; Mon, 10 Sep 2018 12:48:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F30702086E for ; Mon, 10 Sep 2018 12:48:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=samsung.com header.i=@samsung.com header.b="d1HeyLnW" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F30702086E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=samsung.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728571AbeIJRmq (ORCPT ); Mon, 10 Sep 2018 13:42:46 -0400 Received: from mailout1.w1.samsung.com ([210.118.77.11]:45193 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728063AbeIJRmq (ORCPT ); Mon, 10 Sep 2018 13:42:46 -0400 Received: from eucas1p2.samsung.com (unknown [182.198.249.207]) by mailout1.w1.samsung.com (KnoxPortal) with ESMTP id 20180910124847euoutp01bf253a8d360e18c7d2458857e02943bc~TCsJIvvYH3161831618euoutp01H for ; Mon, 10 Sep 2018 12:48:47 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout1.w1.samsung.com 20180910124847euoutp01bf253a8d360e18c7d2458857e02943bc~TCsJIvvYH3161831618euoutp01H DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1536583727; bh=uQO0h0ZmTt9ANQqVIpDyqrTOsJgPJ6R0dGHOZ2cqOmc=; h=Subject:To:Cc:From:Date:In-Reply-To:References:From; b=d1HeyLnWpIYGo67UBBNa+sfv1FvhzayOXs7FKqGx7FzO3NLJX0Ojkr/XK+y1+krul rcuyw/cOgh1LUUY4Jo5A8SXNZXKcwJ/CymRkmfg4lYjNuBTeZ+EW2pz14Lmu0HTqAR jNmnE5hm/ILmhdU0eKE3FxJfDFZCaLoWO7bUugX4= Received: from eusmges2new.samsung.com (unknown [203.254.199.244]) by eucas1p1.samsung.com (KnoxPortal) with ESMTP id 20180910124846eucas1p1498c193fa46bf1285649f91f49ce444b~TCsIK_7js1224212242eucas1p1q; Mon, 10 Sep 2018 12:48:46 +0000 (GMT) Received: from eucas1p2.samsung.com ( [182.198.249.207]) by eusmges2new.samsung.com (EUCPMTA) with SMTP id 3E.C7.04294.E28669B5; Mon, 10 Sep 2018 13:48:46 +0100 (BST) Received: from eusmtrp2.samsung.com (unknown [182.198.249.139]) by eucas1p1.samsung.com (KnoxPortal) with ESMTPA id 20180910124845eucas1p1b51674cd657757aadf5138e277e57ebe~TCsHYsLqt1779917799eucas1p18; Mon, 10 Sep 2018 12:48:45 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp2.samsung.com (KnoxPortal) with ESMTP id 20180910124845eusmtrp2bfc16b4dabc9488f8667b105bebceedf~TCsHHRhwZ3126931269eusmtrp2f; Mon, 10 Sep 2018 12:48:45 +0000 (GMT) X-AuditID: cbfec7f4-84fff700000010c6-72-5b96682ed861 Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 92.84.04128.D28669B5; Mon, 10 Sep 2018 13:48:45 +0100 (BST) Received: from [106.120.53.102] (unknown [106.120.53.102]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20180910124844eusmtip12ac25b60278a6bda718f86799dc7faf9~TCsGfGwrR1303813038eusmtip1Q; Mon, 10 Sep 2018 12:48:44 +0000 (GMT) Subject: Re: [PATCH 1/4] fbdev: Drop FBINFO_CAN_FORCE_OUTPUT flag To: Daniel Vetter , DRI Development Cc: Intel Graphics Development , LKML , Ben Skeggs , Greg Kroah-Hartman , Hans de Goede , Alexander Kapshuk , Kees Cook , Thierry Reding , David Lechner , nouveau@lists.freedesktop.org, linux-fbdev@vger.kernel.org, Daniel Vetter From: Bartlomiej Zolnierkiewicz Date: Mon, 10 Sep 2018 14:48:43 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <20180822085405.10787-1-daniel.vetter@ffwll.ch> Content-Transfer-Encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA02SfUxNcRjH9zvn3HNPl3v9uiXPiuKOTNML83KimTA7f5mZeavRpdOt6V65 py7FuDRlNb0t1a1QLnpd5WVR3lrRrRQaGZqXFk2k9xANnU6N/z6/7/N8f8/32R6GVL+QOTNh hkjeaNCGa2gFVVk/+sTTKzQjwCdljGIrG+vlbHfBacTmd7wh2YLmMpK9aHZin4/00WystZxm e2yZBJuTcp1gmxP1bENSv4x9Vp1Ls9+TkmRs+y/VWhWXY26luLvf8iiuKvuNnLPe6Sa4weRG GXf/XKmce5doI7gzsb0013evjeaGrrluVuxS+AXz4WEm3ui9JkgR+v5bExVhVRx+mjmGzOgR k4DsGMDLYMDaRousxoUIXrVtlXgYQfrQ6gSkGOchBJaSdGrK0NPbIZMKBQjSPg3LJEcfAuuI SmQH7A+p/QNIZEe8B+qySuSigcQ9JHSYPxJigcarIDW+eKKJwgvgcur5cWaYmXgHJDcvFGUl todGy4eJwXbYD9Jq4uUik9gNbn7NJcU/AY/KofdEHSUZTFDRZSGkpBsgNm5gMrUDfLbdkEs8 G/5UXSAkcyaCnp+XKelRjqC0uX7SvRrqbK0yMRGJF0F5tbck+0PT64eUKANWwcuv9lIgFaRV ZpKSrITTcWqp2x0qrlTQU2MTqopIiTmoan+BUtC87P/WzP5vtex/c/MQWYxm8VGCXscLSw38 IS9BqxeiDDqvfQf019D4tT36bRu+harH9tYizCDNdCUTcTZALdOahGh9LQKG1DgqqxdnBKiV wdroGN54YI8xKpwXapELQ2lmKVUeIQFqrNNG8vt5PoI3TlUJxs7ZjLaFxah1g+uvtgaajp/S /Hib6qkien0LdTE1bRuP3Q5x2V0UdGq/z4pN0aNffl86nn/khG5uy9t21xUHcZyTd5Rb/VKH dU0jRcr55i37fHemd3otL+4IefxF41I2I+t848/O0pb0k9stO2oe+K10NxVMa/h01McQeA53 NQmWNXNuT59/RUMJodolHqRR0P4F3Bl0BWkDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrHIsWRmVeSWpSXmKPExsVy+t/xu7q6GdOiDWZ+Y7fYdvIYu8XL5R2M Fgsf3mW2WH5mHbPFogYxiytf37NZNC9ez2bx5vh0JovZEzYzWZzpzrU40feB1eLyrjlsFt/7 +lgtbv/mc+DzmN1wkcVj77cFLB47Z91l91i85yWTx6f+k6we++euYfe4332cyaO3+R2bx/t9 V9k8Pm+SC+CK0rMpyi8tSVXIyC8usVWKNrQw0jO0tNAzMrHUMzQ2j7UyMlXSt7NJSc3JLEst 0rdL0Mt48O0US8FirooL0/8wNjCe5uhi5OSQEDCRePPuIWsXIxeHkMBSRonf61+ydDFyACVk JI6vL4OoEZb4c62LDaLmLaPEmcW3mEASwgKOEhM/fGQEsUUE4iU6T5xmhCjqZ5S4dXsCO0iC WeAds8T/J/IgNpuAlcTE9lVgDbwCdhJPHr5lAbFZBFQllk6cBxYXFYiQuPWwgwWiRlDi5Mwn YDangI3EpAPtUDPVJf7Mu8QMYctLbH87h3kCo+AsJC2zkJTNQlK2gJF5FaNIamlxbnpusZFe cWJucWleul5yfu4mRmDcbjv2c8sOxq53wYcYBTgYlXh4OQqmRguxJpYVV+YeYpTgYFYS4d2l My1aiDclsbIqtSg/vqg0J7X4EKMp0BMTmaVEk/OBKSWvJN7Q1NDcwtLQ3Njc2MxCSZz3vEFl lJBAemJJanZqakFqEUwfEwenVAOj0W9ZqaOdl6dUyCxdOOOvuOT9WexLZWZLNmo+nDTTY35w 1vlGFS8Fnn3/p50LvvnxCnuFroTKtFN7vHiPbty9zVtFM93Q6Naifbs+H5y9p3+pwPrJxoXC sqcvV0eVHol66G4QtS11teHnS9/ueJttXLmjgqHP9c0aW9WzkhtmSAvMcFs8L2e6tBJLcUai oRZzUXEiAC6Nx0HxAgAA Message-Id: <20180910124845eucas1p1b51674cd657757aadf5138e277e57ebe~TCsHYsLqt1779917799eucas1p18@eucas1p1.samsung.com> X-CMS-MailID: 20180910124845eucas1p1b51674cd657757aadf5138e277e57ebe X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20180822085418epcas5p30ab8aa4b49ba204f4891760af002bce1 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20180822085418epcas5p30ab8aa4b49ba204f4891760af002bce1 References: <20180822085405.10787-1-daniel.vetter@ffwll.ch> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 08/22/2018 10:54 AM, Daniel Vetter wrote: > This was only added for the drm's fbdev emulation support, so that it > would try harder to show the Oops. > > Unfortunately this never really worked reliably, and in practice ended > up pushing the real Oops off the screen due to plentyfull locking, > sleep-while-atomic and other issues. So we removed all that support > from the fbdev emulation a while back. Aside: We've also removed the > kgdb support, for similar reasons. > > Since it's such a small patch I figured I don't split this up into the > usual 3-phase removal. > > Cc: Ben Skeggs > Cc: Bartlomiej Zolnierkiewicz > Cc: Greg Kroah-Hartman > Cc: Hans de Goede > Cc: Daniel Vetter > Cc: Alexander Kapshuk > Cc: Kees Cook > Cc: Thierry Reding > Cc: David Lechner > Cc: nouveau@lists.freedesktop.org > Cc: linux-fbdev@vger.kernel.org > Signed-off-by: Daniel Vetter Acked-by: Bartlomiej Zolnierkiewicz Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Date: Mon, 10 Sep 2018 12:48:43 +0000 Subject: Re: [PATCH 1/4] fbdev: Drop FBINFO_CAN_FORCE_OUTPUT flag Message-Id: <20180910124845eucas1p1b51674cd657757aadf5138e277e57ebe~TCsHYsLqt1779917799eucas1p18@eucas1p1.samsung.com> List-Id: References: <20180822085405.10787-1-daniel.vetter@ffwll.ch> In-Reply-To: <20180822085405.10787-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Daniel Vetter , DRI Development Cc: linux-fbdev@vger.kernel.org, Alexander Kapshuk , Greg Kroah-Hartman , Intel Graphics Development , LKML , Hans de Goede , Ben Skeggs , nouveau@lists.freedesktop.org, Daniel Vetter , David Lechner , Thierry Reding , Kees Cook On 08/22/2018 10:54 AM, Daniel Vetter wrote: > This was only added for the drm's fbdev emulation support, so that it > would try harder to show the Oops. > > Unfortunately this never really worked reliably, and in practice ended > up pushing the real Oops off the screen due to plentyfull locking, > sleep-while-atomic and other issues. So we removed all that support > from the fbdev emulation a while back. Aside: We've also removed the > kgdb support, for similar reasons. > > Since it's such a small patch I figured I don't split this up into the > usual 3-phase removal. > > Cc: Ben Skeggs > Cc: Bartlomiej Zolnierkiewicz > Cc: Greg Kroah-Hartman > Cc: Hans de Goede > Cc: Daniel Vetter > Cc: Alexander Kapshuk > Cc: Kees Cook > Cc: Thierry Reding > Cc: David Lechner > Cc: nouveau@lists.freedesktop.org > Cc: linux-fbdev@vger.kernel.org > Signed-off-by: Daniel Vetter Acked-by: Bartlomiej Zolnierkiewicz Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Subject: Re: [PATCH 1/4] fbdev: Drop FBINFO_CAN_FORCE_OUTPUT flag Date: Mon, 10 Sep 2018 14:48:43 +0200 Message-ID: <20180910124845eucas1p1b51674cd657757aadf5138e277e57ebe~TCsHYsLqt1779917799eucas1p18@eucas1p1.samsung.com> References: <20180822085405.10787-1-daniel.vetter@ffwll.ch> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20180822085405.10787-1-daniel.vetter@ffwll.ch> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Daniel Vetter , DRI Development Cc: linux-fbdev@vger.kernel.org, Alexander Kapshuk , Greg Kroah-Hartman , Intel Graphics Development , LKML , Hans de Goede , Ben Skeggs , nouveau@lists.freedesktop.org, Daniel Vetter , David Lechner , Thierry Reding , Kees Cook List-Id: nouveau.vger.kernel.org Ck9uIDA4LzIyLzIwMTggMTA6NTQgQU0sIERhbmllbCBWZXR0ZXIgd3JvdGU6Cj4gVGhpcyB3YXMg b25seSBhZGRlZCBmb3IgdGhlIGRybSdzIGZiZGV2IGVtdWxhdGlvbiBzdXBwb3J0LCBzbyB0aGF0 IGl0Cj4gd291bGQgdHJ5IGhhcmRlciB0byBzaG93IHRoZSBPb3BzLgo+IAo+IFVuZm9ydHVuYXRl bHkgdGhpcyBuZXZlciByZWFsbHkgd29ya2VkIHJlbGlhYmx5LCBhbmQgaW4gcHJhY3RpY2UgZW5k ZWQKPiB1cCBwdXNoaW5nIHRoZSByZWFsIE9vcHMgb2ZmIHRoZSBzY3JlZW4gZHVlIHRvIHBsZW50 eWZ1bGwgbG9ja2luZywKPiBzbGVlcC13aGlsZS1hdG9taWMgYW5kIG90aGVyIGlzc3Vlcy4gU28g d2UgcmVtb3ZlZCBhbGwgdGhhdCBzdXBwb3J0Cj4gZnJvbSB0aGUgZmJkZXYgZW11bGF0aW9uIGEg d2hpbGUgYmFjay4gQXNpZGU6IFdlJ3ZlIGFsc28gcmVtb3ZlZCB0aGUKPiBrZ2RiIHN1cHBvcnQs IGZvciBzaW1pbGFyIHJlYXNvbnMuCj4gCj4gU2luY2UgaXQncyBzdWNoIGEgc21hbGwgcGF0Y2gg SSBmaWd1cmVkIEkgZG9uJ3Qgc3BsaXQgdGhpcyB1cCBpbnRvIHRoZQo+IHVzdWFsIDMtcGhhc2Ug cmVtb3ZhbC4KPiAKPiBDYzogQmVuIFNrZWdncyA8YnNrZWdnc0ByZWRoYXQuY29tPgo+IENjOiBC YXJ0bG9taWVqIFpvbG5pZXJraWV3aWN6IDxiLnpvbG5pZXJraWVAc2Ftc3VuZy5jb20+Cj4gQ2M6 IEdyZWcgS3JvYWgtSGFydG1hbiA8Z3JlZ2toQGxpbnV4Zm91bmRhdGlvbi5vcmc+Cj4gQ2M6IEhh bnMgZGUgR29lZGUgPGhkZWdvZWRlQHJlZGhhdC5jb20+Cj4gQ2M6IERhbmllbCBWZXR0ZXIgPGRh bmllbC52ZXR0ZXJAZmZ3bGwuY2g+Cj4gQ2M6IEFsZXhhbmRlciBLYXBzaHVrIDxhbGV4YW5kZXIu a2Fwc2h1a0BnbWFpbC5jb20+Cj4gQ2M6IEtlZXMgQ29vayA8a2Vlc2Nvb2tAY2hyb21pdW0ub3Jn Pgo+IENjOiBUaGllcnJ5IFJlZGluZyA8dHJlZGluZ0BudmlkaWEuY29tPgo+IENjOiBEYXZpZCBM ZWNobmVyIDxkYXZpZEBsZWNobm9sb2d5LmNvbT4KPiBDYzogbm91dmVhdUBsaXN0cy5mcmVlZGVz a3RvcC5vcmcKPiBDYzogbGludXgtZmJkZXZAdmdlci5rZXJuZWwub3JnCj4gU2lnbmVkLW9mZi1i eTogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBpbnRlbC5jb20+CgpBY2tlZC1ieTogQmFy dGxvbWllaiBab2xuaWVya2lld2ljeiA8Yi56b2xuaWVya2llQHNhbXN1bmcuY29tPgoKQmVzdCBy ZWdhcmRzLAotLQpCYXJ0bG9taWVqIFpvbG5pZXJraWV3aWN6ClNhbXN1bmcgUiZEIEluc3RpdHV0 ZSBQb2xhbmQKU2Ftc3VuZyBFbGVjdHJvbmljcwpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0 cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9s aXN0aW5mby9pbnRlbC1nZngK