From patchwork Wed Nov 15 10:19:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 13456476 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A8712DDA3 for ; Wed, 15 Nov 2023 10:29:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="ADl91A1L"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="bToUZgHS" Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E5AC310F for ; Wed, 15 Nov 2023 02:29:57 -0800 (PST) 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 74ACA204E3; Wed, 15 Nov 2023 10:29:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1700044196; 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=AScGBOOVRsIdNjA3ofDprTsJoTZ679DbuhovRxn5FnI=; b=ADl91A1L6z6+kgq+YQV0MWVVxtFl8oNYX5XPnRpbxn3HIBKdOgoixMge43hVPUMd/xk20l I78kukNcaWo+Wzb/PfcVAys70AvNBlLrGAbJe9nhgBErMXZjYn1g7SArb327UesPC1LXuU T2k5C/K/8xMhLTh0okcqUCmGfAq5Lmc= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1700044196; 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=AScGBOOVRsIdNjA3ofDprTsJoTZ679DbuhovRxn5FnI=; b=bToUZgHS5uA5zv7kPlkZ7Ud3JJimhs68X16aDXnYy0fo88jARXJijWTgdBJ62btd9GZwCL O553xePN0uNZpkDA== 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 53F0C13592; Wed, 15 Nov 2023 10:29:56 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 4C55E6SdVGV+UAAAMHmgww (envelope-from ); Wed, 15 Nov 2023 10:29:56 +0000 From: Thomas Zimmermann To: deller@gmx.de, javierm@redhat.com Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, Thomas Zimmermann Subject: [PATCH 00/32] fbdev: Modularize helpers for struct fb_ops Date: Wed, 15 Nov 2023 11:19:05 +0100 Message-ID: <20231115102954.7102-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.42.0 Precedence: bulk X-Mailing-List: linux-fbdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Authentication-Results: smtp-out2.suse.de; none X-Spam-Level: X-Spam-Score: -6.10 X-Spamd-Result: default: False [-6.10 / 50.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FREEMAIL_ENVRCPT(0.00)[gmx.de]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; NEURAL_HAM_LONG(-3.00)[-1.000]; RCPT_COUNT_FIVE(0.00)[5]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; FREEMAIL_TO(0.00)[gmx.de,redhat.com]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[]; BAYES_HAM(-3.00)[100.00%] Convert the remaining fbdev drivers to use fbdev's helpers macros for struct fb_ops. Then push the current default code for file-I/O operations into a module and remove it as default. Each driver now selects the helpers its needs for file I/O and drawing to its framebuffer. If no helper has been set for an operation in struct fb_ops, the operation is unsupported. Once applied, fbdev drivers will not include unnecessary helper code. The helpers will also be more robust against mis-use. The first 2 patches are bug fixes. Patches 3 to 26 modify fbdev drivers to set up their fb_ops structures correctly and select the necessary helpers. Patches 27 and 28 do a few additional minor cleanups. Patches 29 to 32 move all helpers for struct fb_ops into modules and drop the default. Helpers also warn if they operate on the wrong type of framebuffer memory. Framebuffers in I/O memory and system memory can only be used with the correct helper functions. Thomas Zimmermann (32): fbdev/acornfb: Fix name of fb_ops initializer macro fbdev/sm712fb: Use correct initializer macros for struct fb_ops fbdev/vfb: Set FBINFO_VIRTFB flag fbdev/vfb: Initialize fb_ops with fbdev macros fbdev/arcfb: Set FBINFO_VIRTFB flag fbdev/arcfb: Use generator macros for deferred I/O auxdisplay/cfag12864bfb: Set FBINFO_VIRTFB flag auxdisplay/cfag12864bfb: Initialize fb_ops with fbdev macros auxdisplay/ht16k33: Set FBINFO_VIRTFB flag auxdisplay/ht16k33: Initialize fb_ops with fbdev macros hid/picolcd_fb: Set FBINFO_VIRTFB flag fbdev/sh_mobile_lcdcfb: Set FBINFO_VIRTFB flag fbdev/sh_mobile_lcdcfb: Initialize fb_ops with fbdev macros fbdev/smscufx: Select correct helpers fbdev/udlfb: Select correct helpers fbdev/au1200fb: Set FBINFO_VIRTFB flag fbdev/au1200fb: Initialize fb_ops with fbdev macros fbdev/ps3fb: Set FBINFO_VIRTFB flag fbdev/ps3fb: Initialize fb_ops with fbdev macros media/ivtvfb: Initialize fb_ops to fbdev I/O-memory helpers fbdev/clps711x-fb: Initialize fb_ops with fbdev macros fbdev/vt8500lcdfb: Initialize fb_ops with fbdev macros fbdev/wm8505fb: Initialize fb_ops to fbdev I/O-memory helpers fbdev/cyber2000fb: Initialize fb_ops with fbdev macros staging/sm750fb: Declare fb_ops as constant staging/sm750fb: Initialize fb_ops with fbdev macros fbdev: Rename FB_SYS_FOPS token to FB_SYSMEM_FOPS fbdev: Remove trailing whitespaces fbdev: Push pgprot_decrypted() into mmap implementations fbdev: Move default fb_mmap code into helper function fbdev: Warn on incorrect framebuffer access fbdev: Remove default file-I/O implementations drivers/auxdisplay/Kconfig | 10 +- drivers/auxdisplay/cfag12864bfb.c | 10 +- drivers/auxdisplay/ht16k33.c | 10 +- drivers/hid/hid-picolcd_fb.c | 1 + drivers/media/pci/ivtv/Kconfig | 4 +- drivers/media/pci/ivtv/ivtvfb.c | 6 +- drivers/staging/sm750fb/sm750.c | 65 ++++++++-- drivers/video/fbdev/Kconfig | 50 ++------ drivers/video/fbdev/acornfb.c | 2 +- drivers/video/fbdev/amba-clcd.c | 2 + drivers/video/fbdev/arcfb.c | 114 +++++------------- drivers/video/fbdev/au1100fb.c | 2 + drivers/video/fbdev/au1200fb.c | 11 +- drivers/video/fbdev/clps711x-fb.c | 4 +- drivers/video/fbdev/core/Kconfig | 7 +- drivers/video/fbdev/core/Makefile | 2 +- drivers/video/fbdev/core/cfbcopyarea.c | 3 + drivers/video/fbdev/core/cfbfillrect.c | 3 + drivers/video/fbdev/core/cfbimgblt.c | 3 + drivers/video/fbdev/core/fb_chrdev.c | 68 ++--------- drivers/video/fbdev/core/fb_defio.c | 2 + drivers/video/fbdev/core/fb_io_fops.c | 36 ++++++ drivers/video/fbdev/core/fb_sys_fops.c | 6 + drivers/video/fbdev/core/syscopyarea.c | 3 + drivers/video/fbdev/core/sysfillrect.c | 3 + drivers/video/fbdev/core/sysimgblt.c | 3 + drivers/video/fbdev/cyber2000fb.c | 9 +- drivers/video/fbdev/ep93xx-fb.c | 2 + drivers/video/fbdev/gbefb.c | 2 + drivers/video/fbdev/omap/omapfb_main.c | 2 + .../video/fbdev/omap2/omapfb/omapfb-main.c | 2 + drivers/video/fbdev/ps3fb.c | 11 +- drivers/video/fbdev/sa1100fb.c | 2 + drivers/video/fbdev/sbuslib.c | 5 +- drivers/video/fbdev/sh_mobile_lcdcfb.c | 16 +-- drivers/video/fbdev/sm712fb.c | 6 +- drivers/video/fbdev/smscufx.c | 2 + drivers/video/fbdev/udlfb.c | 2 + drivers/video/fbdev/vermilion/vermilion.c | 2 + drivers/video/fbdev/vfb.c | 10 +- drivers/video/fbdev/vt8500lcdfb.c | 4 +- drivers/video/fbdev/wm8505fb.c | 2 + include/linux/fb.h | 11 +- 43 files changed, 254 insertions(+), 266 deletions(-) base-commit: ab54663d6cd21c6748f91c1cc0fe3456d4e38ce6