From patchwork Mon Aug 28 13:14:16 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 718846 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 74734C83F15 for ; Mon, 28 Aug 2023 13:22:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230254AbjH1NWC (ORCPT ); Mon, 28 Aug 2023 09:22:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231642AbjH1NVj (ORCPT ); Mon, 28 Aug 2023 09:21:39 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A48D4124; Mon, 28 Aug 2023 06:21:36 -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 0C0C8219E6; Mon, 28 Aug 2023 13:21:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1693228895; 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=pnwZ65nZK9qeQ06lv/Mt+cgcaEzXDu6AFEyAEI4AnZk=; b=fPBDEz9qgFehf6BuZhp2iHjeAXo/bJTGn1MR05cIllGWQEwYt12OohQ7V/SV5rPR3DRSgS +D+xZOWIOPYd5gMN9NtONvBFEh8OoNGl25Uvy02zsnXSDCv2DVVB67QOgcZnp3qmoyQWgs L5SEUTRtXCtetol+ZjGd5hSUQQiXIxY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1693228895; 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=pnwZ65nZK9qeQ06lv/Mt+cgcaEzXDu6AFEyAEI4AnZk=; b=wGiy3UgLSj9rxu9VhhXasfT7LMsu/Be88DValn/yjpnAOHvrGmKm0T6IVTQzl+NB5CHtUL GuLsL4b/7iaRxtDA== 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 C699213A11; Mon, 28 Aug 2023 13:21:34 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id Mx11L16f7GTyOAAAMHmgww (envelope-from ); Mon, 28 Aug 2023 13:21:34 +0000 From: Thomas Zimmermann To: deller@gmx.de, daniel@ffwll.ch, sam@ravnborg.org, javierm@redhat.com Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-staging@lists.linux.dev, linux-hyperv@vger.kernel.org, linux-input@vger.kernel.org, Thomas Zimmermann Subject: [PATCH 0/8] fbdev: Use helpers for deferred I/O Date: Mon, 28 Aug 2023 15:14:16 +0200 Message-ID: <20230828132131.29295-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.41.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org Here's another patchset for deferred-I/O helpers. Update a number of fbdev drivers with deferred I/O to use fbdev's helper macros and Kconfig tokens. Generating and initializing via helpers macros will later allow for a fine-grained setup, depending on Kconfig options. For example, it will be possible to leave out file I/O if FB_DEVICE has not been set. Each driver in special in its own way. The smscufx and udlfb drivers support file I/O without damage updates. (That probably doesn't work correctly.) So they provide their own mmap code. The hyperv_fb driver sometimes operates on memory in I/O address spaces and fails to do damage handling correctly for write operations. The picolcd and fbtft drivers are outside of fbdev. Thomas Zimmermann (8): fbdev/smscufx: Use fb_ops helpers for deferred I/O fbdev/udlfb: Use fb_ops helpers for deferred I/O fbdev: Add Kconfig macro FB_IOMEM_HELPERS_DEFERRED fbdev/hyperv_fb: Use fb_ops helpers for deferred I/O hid: Remove trailing whitespace hid/picolcd: Use fb_ops helpers for deferred I/O staging/fbtft: Initialize fb_op struct as static const staging/fbtft: Use fb_ops helpers for deferred I/O drivers/hid/Kconfig | 8 +-- drivers/hid/hid-picolcd_fb.c | 73 ++++++---------------- drivers/staging/fbtft/Kconfig | 6 +- drivers/staging/fbtft/fbtft-core.c | 99 ++++++++---------------------- drivers/video/fbdev/Kconfig | 5 +- drivers/video/fbdev/core/Kconfig | 6 ++ drivers/video/fbdev/hyperv_fb.c | 48 +++++---------- drivers/video/fbdev/smscufx.c | 85 +++++++------------------ drivers/video/fbdev/udlfb.c | 89 +++++++-------------------- 9 files changed, 114 insertions(+), 305 deletions(-)