From patchwork Mon Sep 25 07:26:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13397364 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 C83DACE7A98 for ; Mon, 25 Sep 2023 07:33:42 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 82ED810E20A; Mon, 25 Sep 2023 07:33:26 +0000 (UTC) Received: from smtp-out2.suse.de (smtp-out2.suse.de [IPv6:2001:67c:2178:6::1d]) by gabe.freedesktop.org (Postfix) with ESMTPS id B104B10E075; Mon, 25 Sep 2023 07:33:19 +0000 (UTC) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 69DCC1F38D; Mon, 25 Sep 2023 07:33:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1695627198; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=QWUwHZClstx7ZOSeshSO7yDLKV3TqAiZa8aDlPu/hxk=; b=OtFMMGnBealOMT8kelTkyR/G6aJAFoMa8igi+8/Vv5h2uzKRYGOV9skGjlkKNfKteZIeZJ jjcvytX3MGaR8TJDHKkxvYleclbdpkRv732zPAHqBDeqVem3URTAEamWPQs8kd+vINWt+E HyVGceqZgtbUpMZqCK79VApeeNGqyCA= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1695627198; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=QWUwHZClstx7ZOSeshSO7yDLKV3TqAiZa8aDlPu/hxk=; b=wTzkEVSsvRZiDEVtZ+yRKzrs79xhgtBRfLSVvQWawGVXwDbKOmKSKy6HRrigr3RX1szc5f 7z8PotdYCLr2mNDQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 2B67C1358F; Mon, 25 Sep 2023 07:33:18 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id KPClCb43EWVyPQAAMHmgww (envelope-from ); Mon, 25 Sep 2023 07:33:18 +0000 From: Thomas Zimmermann To: jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com, tvrtko.ursulin@linux.intel.com, ville.syrjala@linux.intel.com, imre.deak@intel.com, tejas.upadhyay@intel.com, javierm@redhat.com, airlied@gmail.com, daniel@ffwll.ch Date: Mon, 25 Sep 2023 09:26:36 +0200 Message-ID: <20230925073315.11627-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.42.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 0/7] drm/i915: Convert fbdev to DRM client X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org, Thomas Zimmermann , dri-devel@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Convert i915's fbdev code to struct drm_client. Replaces the current ad-hoc integration. The conversion includes a number of cleanups. The patchset also enables unloading of driver modules with in-kernel DRM clients; a feature required by i915. As with the other drivers' fbdev emulation, fbdev in i915 is now an in-kernel DRM client that runs after the DRM device has been registered. This allows to remove the asynchronous initialization. i915 is the last driver with an fbdev emulation that is not build upon struct drm_client. Once reviewed, the patches would ideally go into drm-misc-next, so that the old fbdev helper code can be removed. We can also attempt to add additional in-kernel clients. A DRM-based dmesg log or a bootsplash are commonly mentioned. DRM can then switch easily among the existing clients if/when required. v3: * support module unloading (Jani, CI bot) * as before, silently ignore devices without displays (CI bot) v2: * fix error handling (Jani) * fix non-fbdev builds * various minor fixes and cleanups Thomas Zimmermann (7): drm/i915: Unregister in-kernel clients drm/client: Do not acquire module reference drm/client: Export drm_client_dev_unregister() drm/i915: Move fbdev functions drm/i915: Initialize fbdev DRM client with callback functions drm/i915: Implement fbdev client callbacks drm/i915: Implement fbdev emulation as in-kernel client drivers/gpu/drm/drm_client.c | 25 +- drivers/gpu/drm/i915/display/intel_display.c | 1 - .../drm/i915/display/intel_display_driver.c | 19 -- drivers/gpu/drm/i915/display/intel_fbdev.c | 250 ++++++++++-------- drivers/gpu/drm/i915/display/intel_fbdev.h | 29 +- drivers/gpu/drm/i915/i915_driver.c | 27 +- 6 files changed, 156 insertions(+), 195 deletions(-)