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 9E1F9C433F5 for ; Fri, 29 Apr 2022 08:43:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355951AbiD2Iql (ORCPT ); Fri, 29 Apr 2022 04:46:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355906AbiD2Iqb (ORCPT ); Fri, 29 Apr 2022 04:46:31 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0FE063879C for ; Fri, 29 Apr 2022 01:43:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1651221792; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fRMcUIWA7sdzgB28q5eAL1IlJEzmKZ6fC0UlacasRt0=; b=UCplvL+EkJWURtHzbVLo9qYpdMdjmn6PKm2lOzklHdcTZQTwj2xzaZUHY54waC1dvTyaOi O5yyL66zLuEm37UWSBga5JfM/ujuMzOCdNQQtV7wMCg7NNAp3SuSQD/y3iKyn5QlEb8Zej H+11p7/OjJVR6Quf/+5GGKHTkEDxajM= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-374-l-j7c1JYPxOJ7UXjlmp09w-1; Fri, 29 Apr 2022 04:43:10 -0400 X-MC-Unique: l-j7c1JYPxOJ7UXjlmp09w-1 Received: by mail-wr1-f71.google.com with SMTP id v13-20020adfc5cd000000b0020ad3580cd0so2808240wrg.10 for ; Fri, 29 Apr 2022 01:43:10 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fRMcUIWA7sdzgB28q5eAL1IlJEzmKZ6fC0UlacasRt0=; b=LW5r0q4KO9ec3q06gbRIIgDmEjd/gHAY4yJP5J7dlC7DnnGsKbF4qyLRlnNE4yl7b3 jLKe+8qis+zl4XqWLUK0s65te/U3ped6dtAfD3I0ofkcIBarCdxGK7xKIGUj8+t1WnX0 X1iUVlABU0tpb+fOTIx3lr/m7sZHkStKdQLSMnBxRZH5y9NFqYTo33YheX5jPwgR007J U24NHoC0W8IjZKitL+dpWScwT8rjNZ+2lbWCneDRAWIy3Pr7iNPQzzwcsMZAgwMLZwhq acQKzs2P0xNQF6FMHhrZ0pQJQ1jb8DP2lUU+ev5eveS1X8p3W0V5+0IaqihmkZ9XWoCp 7f2A== X-Gm-Message-State: AOAM531ZQ4OFIGWt6LVfPffhdNkwKebi0N6CkNwA05eYjNCEpEi1Ooaf S0jOdbF0Gne/ahg7N2t4hGzf/5LAQRtg4mrkwSBdnx2HuuyWmifs1I1PHNh1HnwQSdeAn0ZXbqn oRsXjN8aE44l/MClY+Iw1cfHzmcmMQAMqIHCgqgxFZhfH17V6sVo4nEq8ugk8aN/OHtvYERXCtL Q= X-Received: by 2002:adf:decb:0:b0:20a:c975:8eec with SMTP id i11-20020adfdecb000000b0020ac9758eecmr28945546wrn.438.1651221789496; Fri, 29 Apr 2022 01:43:09 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwtZEVR1B2SxYUlJMQTPPXV31wb/4bFJp+yeoC7Nu0Cucm9c+snWTdOciLZN/4zm1HB6AokFA== X-Received: by 2002:adf:decb:0:b0:20a:c975:8eec with SMTP id i11-20020adfdecb000000b0020ac9758eecmr28945524wrn.438.1651221789280; Fri, 29 Apr 2022 01:43:09 -0700 (PDT) Received: from minerva.home ([92.176.231.205]) by smtp.gmail.com with ESMTPSA id f7-20020a05600c4e8700b00393f1393abfsm7199256wmq.41.2022.04.29.01.43.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Apr 2022 01:43:08 -0700 (PDT) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: dri-devel@lists.freedesktop.org, Daniel Vetter , Greg Kroah-Hartman , Thomas Zimmermann , Javier Martinez Canillas , Daniel Vetter , David Airlie , Maarten Lankhorst , Maxime Ripard Subject: [RFC PATCH v4 02/11] drm/fb-helper: Set FBINFO_MISC_FIRMWARE flag for DRIVER_FIRMWARE fb Date: Fri, 29 Apr 2022 10:42:44 +0200 Message-Id: <20220429084253.1085911-3-javierm@redhat.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220429084253.1085911-1-javierm@redhat.com> References: <20220429084253.1085911-1-javierm@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The DRIVER_FIRMWARE flag denotes that a DRM driver uses a framebuffer that was initialized and provided by the system firmware for scanout. Indicate to the fbdev subsystem that the registered framebuffer is a FBINFO_MISC_FIRMWARE, so that it can handle accordingly. For example, wold hot-unplug the associated device if asked to remove conflicting framebuffers. Suggested-by: Thomas Zimmermann Signed-off-by: Javier Martinez Canillas --- (no changes since v1) drivers/gpu/drm/drm_fb_helper.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c index d265a73313c9..76dd11888621 100644 --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -1891,6 +1891,10 @@ __drm_fb_helper_initial_config_and_unlock(struct drm_fb_helper *fb_helper, /* don't leak any physical addresses to userspace */ info->flags |= FBINFO_HIDE_SMEM_START; + /* Indicate that the framebuffer is provided by the firmware */ + if (drm_core_check_feature(dev, DRIVER_FIRMWARE)) + info->flags |= FBINFO_MISC_FIRMWARE; + /* Need to drop locks to avoid recursive deadlock in * register_framebuffer. This is ok because the only thing left to do is * register the fbdev emulation instance in kernel_fb_helper_list. */ -- 2.35.1