From patchwork Fri May 12 08:41:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 681542 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 D540EC77B75 for ; Fri, 12 May 2023 08:41:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240164AbjELIl6 (ORCPT ); Fri, 12 May 2023 04:41:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54322 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232659AbjELIl5 (ORCPT ); Fri, 12 May 2023 04:41:57 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C777B3A96; Fri, 12 May 2023 01:41:55 -0700 (PDT) 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-out1.suse.de (Postfix) with ESMTPS id 85EC92277E; Fri, 12 May 2023 08:41:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1683880914; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=pWQ1m120kigJP8UI6CyQFrBjDqO1iQT2O49PACRC7NY=; b=mnFQs8mVfueIa/exRdcpKrEU2GTwDYtt4Ut4AUoRyeO2HeCTyXk/NuBpUJdhfuNQ+07Blv iIroG2RhLFmydYDquWy8pwc6KQ5zHj+k8DJG5sOHJufzKhV80f6BcHMxq+YNCYdTPYyT3B QhFfLGHeK/18steKR301Y0RMtv9V/EY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1683880914; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=pWQ1m120kigJP8UI6CyQFrBjDqO1iQT2O49PACRC7NY=; b=lcj89k5WVh2hez+Bd24Oq73UKlKEc85Ivu/B6pfMwNsSbV2OIrZMU8oIFW4VJnpHVuYQFa 6E5Ifjx2JsjJbODA== 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 2CFD213466; Fri, 12 May 2023 08:41:54 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 3DnrCdL7XWQZKQAAMHmgww (envelope-from ); Fri, 12 May 2023 08:41:54 +0000 From: Thomas Zimmermann To: daniel@ffwll.ch, airlied@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, javierm@redhat.com Cc: dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thomas Zimmermann Subject: [PATCH 00/11] drm/fbdev: Remove DRM's helpers for fbdev I/O Date: Fri, 12 May 2023 10:41:41 +0200 Message-Id: <20230512084152.31233-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.40.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org DRM provides a number of wrappers around fbdev cfb_() sys_(), fb_io_() and fb_sys_() helpers. The DRM functions don't provide any additional functionality for most DRM drivers. So remove them and call the fbdev I/O helpers directly. The DRM fbdev I/O wrappers were originally added because does not protect its content with CONFIG_FB. DRM fbdev emulation did not build if the the config option had been disabled. This has been fixed. For fbdev-generic and i915, the wrappers added support for damage handling. But this is better handled within the two callers, as each is special in its damage handling. Patches 1 to 8 replace the DRM wrappers in a number of fbdev emulations. Patch 9 exports two helpers for damage handling. Patches 10 and 11 update fbdev-generic and i915 with the help of the exported functions. The patches also remove DRM's fbdev I/O helpers, which are now unused. DRM's fbdev helpers had to select fbdev I/O helpers for I/O and for system memory. Each fbdev emulation now selects the correct helpers for itself. Depending on the selected DRM drivers, kernel builds will now only contain the necessary fbdev I/O helpers and might be slightly smaller in size. Thomas Zimmermann (11): drm/armada: Use regular fbdev I/O helpers drm/exynos: Use regular fbdev I/O helpers drm/gma500: Use regular fbdev I/O helpers drm/radeon: Use regular fbdev I/O helpers drm/fbdev-dma: Use regular fbdev I/O helpers drm/msm: Use regular fbdev I/O helpers drm/omapdrm: Use regular fbdev I/O helpers drm/tegra: Use regular fbdev I/O helpers drm/fb-helper: Export helpers for marking damage areas drm/fbdev-generic: Implement dedicated fbdev I/O helpers drm/i915: Implement dedicated fbdev I/O helpers drivers/gpu/drm/Kconfig | 27 +- drivers/gpu/drm/Makefile | 7 +- drivers/gpu/drm/armada/Kconfig | 8 + drivers/gpu/drm/armada/Makefile | 2 +- drivers/gpu/drm/armada/armada_drm.h | 2 +- drivers/gpu/drm/armada/armada_fbdev.c | 9 +- drivers/gpu/drm/drm_fb_helper.c | 233 ++---------------- drivers/gpu/drm/drm_fbdev_dma.c | 12 +- drivers/gpu/drm/drm_fbdev_generic.c | 47 +++- drivers/gpu/drm/exynos/Kconfig | 8 + drivers/gpu/drm/exynos/Makefile | 2 +- drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 10 +- drivers/gpu/drm/exynos/exynos_drm_fbdev.h | 2 +- drivers/gpu/drm/gma500/Kconfig | 8 + drivers/gpu/drm/gma500/Makefile | 2 +- drivers/gpu/drm/gma500/fbdev.c | 9 +- drivers/gpu/drm/gma500/psb_drv.h | 2 +- drivers/gpu/drm/i915/Kconfig | 8 + drivers/gpu/drm/i915/Makefile | 2 +- .../drm/i915/display/intel_display_debugfs.c | 2 +- drivers/gpu/drm/i915/display/intel_fbdev.c | 51 +++- drivers/gpu/drm/i915/display/intel_fbdev.h | 2 +- drivers/gpu/drm/msm/Kconfig | 9 + drivers/gpu/drm/msm/Makefile | 2 +- drivers/gpu/drm/msm/msm_drv.h | 2 +- drivers/gpu/drm/msm/msm_fbdev.c | 12 +- drivers/gpu/drm/omapdrm/Kconfig | 9 + drivers/gpu/drm/omapdrm/Makefile | 2 +- drivers/gpu/drm/omapdrm/omap_debugfs.c | 4 +- drivers/gpu/drm/omapdrm/omap_fbdev.c | 12 +- drivers/gpu/drm/omapdrm/omap_fbdev.h | 2 +- drivers/gpu/drm/omapdrm/omap_gem.c | 4 +- drivers/gpu/drm/radeon/Kconfig | 8 + drivers/gpu/drm/radeon/Makefile | 2 +- drivers/gpu/drm/radeon/radeon_fbdev.c | 9 +- drivers/gpu/drm/radeon/radeon_mode.h | 2 +- drivers/gpu/drm/tegra/Kconfig | 9 + drivers/gpu/drm/tegra/Makefile | 2 +- drivers/gpu/drm/tegra/drm.h | 2 +- drivers/gpu/drm/tegra/fbdev.c | 11 +- include/drm/drm_fb_helper.h | 84 +------ include/drm/drm_fbdev_dma.h | 2 +- include/drm/drm_fbdev_generic.h | 2 +- 43 files changed, 264 insertions(+), 382 deletions(-) base-commit: 451e49cfbaa90720149e63f4fa9c7824013c783d