From patchwork Fri Nov 3 14:53:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jocelyn Falempe X-Patchwork-Id: 13444598 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 B3F6CC4332F for ; Fri, 3 Nov 2023 14:55:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B955610EA09; Fri, 3 Nov 2023 14:55:55 +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 50C8010EA04 for ; Fri, 3 Nov 2023 14:55:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1699023353; 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=cHZPg3Ae3/vSii4YmeaUnopY4CM7CyvSoW6lvZvMs34=; b=PdXCiHdIK0KlOP3Mg8ZH9OSHp1Bb2OyML4k9MCoojqqX4WJlKg3BAIkSefr51PeWKI7dT1 SDa7bweMTb3M5ZBG4wGIy9RdetmBT1T3cjOMTZSgMMckXit3jKw29bGS0zjnar9s8Y1lxe zFbn0dNI60+0gtYBmtIsCX3wdt5MNdw= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-320-zzCDQF3vPpG_YLI73zIkug-1; Fri, 03 Nov 2023 10:55:50 -0400 X-MC-Unique: zzCDQF3vPpG_YLI73zIkug-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id C4BA68370E0; Fri, 3 Nov 2023 14:55:49 +0000 (UTC) Received: from hydra.redhat.com (unknown [10.39.193.253]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2AC7F1C060BA; Fri, 3 Nov 2023 14:55:48 +0000 (UTC) From: Jocelyn Falempe To: dri-devel@lists.freedesktop.org, tzimmermann@suse.de, airlied@redhat.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, daniel@ffwll.ch, javierm@redhat.com, bluescreen_avenger@verizon.net, noralf@tronnes.org Subject: [PATCH v5 3/6] drm/simpledrm: Add drm_panic support Date: Fri, 3 Nov 2023 15:53:27 +0100 Message-ID: <20231103145526.628138-4-jfalempe@redhat.com> In-Reply-To: <20231103145526.628138-1-jfalempe@redhat.com> References: <20231103145526.628138-1-jfalempe@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 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: gpiccoli@igalia.com, Jocelyn Falempe Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add support for the drm_panic module, which displays a user-friendly message to the screen when a kernel panic occurs. Signed-off-by: Jocelyn Falempe --- drivers/gpu/drm/tiny/simpledrm.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/gpu/drm/tiny/simpledrm.c b/drivers/gpu/drm/tiny/simpledrm.c index 8ea120eb8674..e5070b82703a 100644 --- a/drivers/gpu/drm/tiny/simpledrm.c +++ b/drivers/gpu/drm/tiny/simpledrm.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include @@ -842,6 +843,19 @@ static struct simpledrm_device *simpledrm_device_create(struct drm_driver *drv, return sdev; } +static int simpledrm_get_scanout_buffer(struct drm_device *dev, + struct drm_scanout_buffer *sb) +{ + struct simpledrm_device *sdev = simpledrm_device_of_dev(dev); + + sb->width = sdev->mode.hdisplay; + sb->height = sdev->mode.vdisplay; + sb->pitch = sdev->pitch; + sb->format = sdev->format; + sb->map = sdev->screen_base; + return 0; +} + /* * DRM driver */ @@ -857,6 +871,7 @@ static struct drm_driver simpledrm_driver = { .minor = DRIVER_MINOR, .driver_features = DRIVER_ATOMIC | DRIVER_GEM | DRIVER_MODESET, .fops = &simpledrm_fops, + .get_scanout_buffer = simpledrm_get_scanout_buffer, }; /*