From patchwork Fri Dec 17 00:37:39 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: 12683277 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 0D073C433F5 for ; Fri, 17 Dec 2021 00:39:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 008ED10E288; Fri, 17 Dec 2021 00:38:37 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id 80B9910E216 for ; Fri, 17 Dec 2021 00:38:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1639701504; 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=uYOa0F3jqaQqpv+N8rljaqNHk1HiWXZfWmsXt7P2ADU=; b=BjVVn9owmgKCVUKN5yViKCP4ccrzZGVJ/92Cr/ZapTxrlpnlhff6abM8mD2g42HIhS3LbD ReyID6PN7kUNBulIbEB3KFayoqvWnCIiW6o42ionaPE5rtv58LqP7Fz7A8Y48p5RTmLNYW Sr/CH/XEUC4ttNLjSrdD6UjHK+gS988= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-194-xL5CrdhdNh-8uYEMCVIP5Q-1; Thu, 16 Dec 2021 19:38:23 -0500 X-MC-Unique: xL5CrdhdNh-8uYEMCVIP5Q-1 Received: by mail-wm1-f70.google.com with SMTP id b75-20020a1c804e000000b0034569bde713so2066710wmd.9 for ; Thu, 16 Dec 2021 16:38:23 -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=uYOa0F3jqaQqpv+N8rljaqNHk1HiWXZfWmsXt7P2ADU=; b=32TV0Rao7mr7BeyBIaF7ttufDzw+lhAzC+9AL/s/W+xEnEwxuZi8A527IVlRyEts/6 spDytjdiKXLpFgPwS5Ast/7tkhX3deA4Xur/8QXHyrllVPp1atqQyiu+fv65f2S++VkT uJ/TRSaG31K4yvq1/GbcdnP6mKTSDXTGCbHhHt1/I7/c1A1L/88rGagFiujmge6DPrsv m80yePe1rJHRcBqCY6xygFuSTByAyXktSx/h/ztjNnXosDbPchhOmCWnAEQyQULb6e6H ZZkc9Oie/dywGLYyxK97niPgpN/v+0eVgNVg+F+gyUWrCJwoyDcs7v1rEBdzqYBp/fra Aitg== X-Gm-Message-State: AOAM532WUrMEmmGIpuaW5sfBncg+q5UMbMck5HXhSu7khkHZTO8OSkIE mB2gcewwwZXk2Bo+fjRmatNWnooNGbnm0H1sx216u+NQJNRTFGrqHa3sfaG+uAue20btfqL5xIz +t2SqKuUQjqOX5O2QrISWvbRAT1hd X-Received: by 2002:a5d:6e8d:: with SMTP id k13mr363709wrz.449.1639701502083; Thu, 16 Dec 2021 16:38:22 -0800 (PST) X-Google-Smtp-Source: ABdhPJwxTViLGqNo1DGlMqBapIEqyC75s/aJw0u0oxAO3rcEgKyVzTALKlCVK39UtqnhY5i7uh+BBw== X-Received: by 2002:a5d:6e8d:: with SMTP id k13mr363703wrz.449.1639701501862; Thu, 16 Dec 2021 16:38:21 -0800 (PST) Received: from minerva.home ([92.176.231.205]) by smtp.gmail.com with ESMTPSA id bg12sm7368433wmb.5.2021.12.16.16.38.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Dec 2021 16:38:21 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 24/37] drm/hyperv: Add support for the nomodeset kernel parameter Date: Fri, 17 Dec 2021 01:37:39 +0100 Message-Id: <20211217003752.3946210-25-javierm@redhat.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20211217003752.3946210-1-javierm@redhat.com> References: <20211217003752.3946210-1-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: Deepak Rawat , 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 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 Acked-by: Deepak Rawat --- (no changes since v1) drivers/gpu/drm/hyperv/hyperv_drm_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c index 00e53de4812b..4a8941fa0815 100644 --- a/drivers/gpu/drm/hyperv/hyperv_drm_drv.c +++ b/drivers/gpu/drm/hyperv/hyperv_drm_drv.c @@ -305,6 +305,9 @@ static int __init hyperv_init(void) { int ret; + if (drm_firmware_drivers_only()) + return -ENODEV; + ret = pci_register_driver(&hyperv_pci_driver); if (ret != 0) return ret;