From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 27 Sep 2024 12:05:30 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1su7qp-003MLP-1n for lore@lore.pengutronix.de; Fri, 27 Sep 2024 12:05:30 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1su7qq-0004yC-1T for lore@pengutronix.de; Fri, 27 Sep 2024 12:05:28 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Az5nuz43SLczAOqFnx0eyzpyi9JSdL1rq+y0lE+LU5I=; b=hJpO6g/VnbE8hUz8JaojBSXYuO Ga1q+tZtdo9N0idoR9IwThClPx4QioYOZ9qkLbJ8wLEGMAe6s18Rr24aSQdDi1QGMiYcMYFs1RhM7 ewjdUUnhCO61Qta+b4Q9me2rCilnYDGY3wwbv7+bq3SSQSjM45l2AT/wHv10O15qP99AW192vR8wc 8O02wn4FrMIwMXKiAycuGfwLbiZcFcF3YmegjmrgrUMpvYkUfm8iYo08/TLg4JOvc0+KdQ4yy4DAG FUMLi5A1uPo+G8rqoivLWSqCwIQtM8LdcKhwbQTl4v1oXO4mYJcraBDFYpGA0BqgpXNV90La7BEeW kPw1GkMg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1su7qH-0000000Am35-2jwm; Fri, 27 Sep 2024 10:04:53 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1su7qE-0000000Am1x-2DTh for barebox@lists.infradead.org; Fri, 27 Sep 2024 10:04:52 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1su7qA-0004er-KZ; Fri, 27 Sep 2024 12:04:46 +0200 Received: from [2a0a:edc0:2:b01:1d::c5] (helo=pty.whiteo.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1su7qA-001tYg-82; Fri, 27 Sep 2024 12:04:46 +0200 Received: from sha by pty.whiteo.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1su7qA-00F1u8-0W; Fri, 27 Sep 2024 12:04:46 +0200 Date: Fri, 27 Sep 2024 12:04:46 +0200 From: Sascha Hauer To: Marco Felsch Cc: "open list:BAREBOX" , Ahmad Fatoum Message-ID: References: <20240926-arm-assembly-memmove-v2-0-0a3313d29a66@pengutronix.de> <20240926-arm-assembly-memmove-v2-10-0a3313d29a66@pengutronix.de> <20240927051215.67lqwfarfcdnzbsq@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240927051215.67lqwfarfcdnzbsq@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240927_030450_703415_3DEE704C X-CRM114-Status: GOOD ( 16.58 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.0 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH v2 10/10] ARM: add optimized memmove X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) On Fri, Sep 27, 2024 at 07:12:15AM +0200, Marco Felsch wrote: > Hi Sascha, > > On 24-09-26, Sascha Hauer wrote: > > Until now there has been no assembler optimized version of memmove() for > > ARM. Add this from Linux-6.10 for both ARM32 and ARM64. This also updates > > memcpy() for ARM64 from Linux-6.10. > > out of curiosity, did you made performance measurements? No, I haven't made any performance measurements. I implemented this for framebuffer console rotation support. When moving a framebuffer one line left or right it's the difference between night and day. Otherwise I think memmove is rarely used in barebox. Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |