From patchwork Wed Dec 15 00:59:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Martinez Canillas X-Patchwork-Id: 12677213 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 8308CC433F5 for ; Wed, 15 Dec 2021 01:02:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8350810E1B7; Wed, 15 Dec 2021 01:02:23 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id E7C4010E155 for ; Wed, 15 Dec 2021 01:01:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639530076; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=4v2Cdkkc86EoGFiSfZtWSuCTFtKbYEs+OLYgRjBvGt8=; b=D1Ch1GM1ZtLTYtJhKRZdcyZrnbw/o6t8cgBwFGujI4LoJsetxbaxLN4jpLnMS7/mNsZCkz V180+Av8l4sqkBWifb+1hPnSASnO5xJaVjasNAh4Muz+t52zZRhmaqxgOyU34dEZpyFGal 0atz/XHdD1ie4ashEc+I2oWyYutxplU= 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-573-3FFTjWNHPhaBoZ8y4WJGNA-1; Tue, 14 Dec 2021 20:01:13 -0500 X-MC-Unique: 3FFTjWNHPhaBoZ8y4WJGNA-1 Received: by mail-wr1-f71.google.com with SMTP id h12-20020adfa4cc000000b001a22dceda69so94070wrb.16 for ; Tue, 14 Dec 2021 17:01:12 -0800 (PST) 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=4v2Cdkkc86EoGFiSfZtWSuCTFtKbYEs+OLYgRjBvGt8=; b=TQvj9Vk0xBsSPCNPpR7QsR0kd2HJ3mn7ILvBDLf5121feHvUHTjYXemBjSSpLaNQHq O35M7UIUe0e7gEim1WaCCDiS7uPifSrgO9rWlnU0GS0J0iCMuC86lXgqZ3yNvq6qqb0c dBmB29aWwFzSAfUiNRX4ZB21/Y1sq+g27DTLCvefRFCyu+n85ENhklXCNy/o3AveT9yO 4Dsj9YbF2nI+4TAYsC3lyPiwOrmL0XC7eZuWGXu4NGwbmjqnH7l/q2TWYSIkdbO5s5zK 0ND9I0qY/FKZhVgTkLi7vpQti1p65IL0d/lir01r7YI+D069/IFUI6w9I0SsVr8VIjfx 7vmw== X-Gm-Message-State: AOAM532si9ODdGBk3Lf3YSjbO0oQQrrr/uAn4ARzwvlGFShrGeiLfboG SWlLtcxK5mJ/FArFssxmFc2DTIqP401V63UwrjqYtZ+C1CbESH2agdf5pcfFjGKvL8raCTEv30+ ZXNn1vV3wvT4oxGWiI5UMhUStPrYu X-Received: by 2002:a05:600c:4fc3:: with SMTP id o3mr2180596wmq.147.1639530071807; Tue, 14 Dec 2021 17:01:11 -0800 (PST) X-Google-Smtp-Source: ABdhPJxRgo4oee72DiQIAzT8vtMRiCvnx6s1mV/IDHw6fAFur1PTySFdTzwVNjAp/rnPgigfO3wCxw== X-Received: by 2002:a05:600c:4fc3:: with SMTP id o3mr2180582wmq.147.1639530071585; Tue, 14 Dec 2021 17:01:11 -0800 (PST) Received: from minerva.home ([92.176.231.205]) by smtp.gmail.com with ESMTPSA id o64sm334543wme.28.2021.12.14.17.01.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 14 Dec 2021 17:01:11 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH 25/60] drm/msm: Add support for the nomodeset kernel parameter Date: Wed, 15 Dec 2021 01:59:33 +0100 Message-Id: <20211215010008.2545520-26-javierm@redhat.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211215010008.2545520-1-javierm@redhat.com> References: <20211215010008.2545520-1-javierm@redhat.com> MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=javierm@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.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: Sean Paul , Javier Martinez Canillas Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" According to disable Documentation/admin-guide/kernel-parameters.txt, this parameter can be used to disable kernel modesetting. DRM drivers will not perform display-mode changes or accelerated rendering and only the systewm system framebuffer will be available if it was set-up. But only a few DRM drivers currently check for nomodeset, make this driver to also support the command line parameter. Signed-off-by: Javier Martinez Canillas --- drivers/gpu/drm/msm/msm_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 7936e8d498dd..eb098475224b 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -518,6 +518,9 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) struct msm_mdss *mdss; int ret, i; + if (drm_firmware_drivers_only()) + return -ENODEV; + ddev = drm_dev_alloc(drv, dev); if (IS_ERR(ddev)) { DRM_DEV_ERROR(dev, "failed to allocate drm_device\n");