From patchwork Thu Feb 10 14:11:09 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 542240 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 A943CC433EF for ; Thu, 10 Feb 2022 14:11:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236803AbiBJOLO (ORCPT ); Thu, 10 Feb 2022 09:11:14 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:32872 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235081AbiBJOLN (ORCPT ); Thu, 10 Feb 2022 09:11:13 -0500 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35632C1 for ; Thu, 10 Feb 2022 06:11:15 -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-out1.suse.de (Postfix) with ESMTPS id DD83C21114; Thu, 10 Feb 2022 14:11:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1644502273; 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=NqZX/R1rW0u9OuXptlIh/Izf+d0bGZuqQpKWsBEQtWw=; b=c7enywIuPfBT8b4t4bdZIJ6TZBGPg2H24iG6J8HVpgnWft3l6StNQJp3VkA80jFXngI8Ji gpbTtHyUYG8DYKUv1uyiXzk4uY8skdFhyCiCQY0jTM14kEKp2AtHb21Eg1dBbRzHIam7In 9B7hlpojYPluhCWotyaf3E+P3VLhJpc= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1644502273; 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=NqZX/R1rW0u9OuXptlIh/Izf+d0bGZuqQpKWsBEQtWw=; b=V5O0ngVfdN4/qyCuSxuQCTjLS7kbzLEWoGY0Pt5UP8AJ2EGuO8bwWtisApt9UkiyLH0Kyz 5o0eqnmJCRev7zDQ== 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 9594C13B9E; Thu, 10 Feb 2022 14:11:13 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id aIqKIwEdBWIPaQAAMHmgww (envelope-from ); Thu, 10 Feb 2022 14:11:13 +0000 From: Thomas Zimmermann To: daniel@ffwll.ch, javierm@redhat.com, noralf@tronnes.org, andriy.shevchenko@linux.intel.com, deller@gmx.de, bernie@plugable.com, jayalk@intworks.biz Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, linux-staging@lists.linux.dev, Thomas Zimmermann Subject: [PATCH 0/2] fbdev: Significantly improve performance of fbdefio mmap Date: Thu, 10 Feb 2022 15:11:09 +0100 Message-Id: <20220210141111.5231-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Remove the bubble sort from fbdev defered I/O page tracking. Most drivers only want to know which pages have been written to. The exact order is not important. Tested on simpledrm. Thomas Zimmermann (2): fbdev/defio: Early-out if page is already enlisted fbdev: Don't sorting deferred-I/O pages by default drivers/staging/fbtft/fbtft-core.c | 1 + drivers/video/fbdev/broadsheetfb.c | 1 + drivers/video/fbdev/core/fb_defio.c | 38 +++++++++++++++++------------ drivers/video/fbdev/metronomefb.c | 1 + drivers/video/fbdev/udlfb.c | 1 + include/linux/fb.h | 1 + 6 files changed, 28 insertions(+), 15 deletions(-)