From patchwork Fri Dec 18 14:18:13 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Lezcano X-Patchwork-Id: 7886101 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 26F96BEEE5 for ; Fri, 18 Dec 2015 14:57:50 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 4AF8420480 for ; Fri, 18 Dec 2015 14:57:49 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 81336203A1 for ; Fri, 18 Dec 2015 14:57:48 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1a9wS8-0003vS-UE; Fri, 18 Dec 2015 14:56:16 +0000 Received: from mail-wm0-x230.google.com ([2a00:1450:400c:c09::230]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1a9vtG-0007no-Vd for linux-arm-kernel@lists.infradead.org; Fri, 18 Dec 2015 14:20:18 +0000 Received: by mail-wm0-x230.google.com with SMTP id l126so66187855wml.0 for ; Fri, 18 Dec 2015 06:19:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=gx/2/QWDUjZSZ1rAQFKAAWxYNrl1O0F5akmuPXNHvR0=; b=DgF0xr90cOU4/iVUH0tEioBbDkm8uS+svkbs7n728EwYmGnTcTshFlPA5rznagfOq+ u0zHA4QP4YcTBQHQRQScgDLSPRXKI5NqhmP1rM8mtzT0t8768gGEnvHY6OHp0AqLlIvA xp0PDQ6hDneok14uj7xNX2sCjUEw84GIMtEK8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=gx/2/QWDUjZSZ1rAQFKAAWxYNrl1O0F5akmuPXNHvR0=; b=DwsAmjMrYDR+9hKQLid83pMvod+oENeMfv8x6K+CFM4Tt+OladDx4mEey3J5Q7tPb5 jQIYIo18SDcoBVbHNfX+AxWuM+yOZwufJF1DJwcxw1lWn3lVaYJ4NxvJccyK4lEe4CJZ izy6XPRsqpKHpkn43YNCJDJ8SMxcyBGePmN3vho3yGBSmRPresb/6xHr3PaLxQcjT8Zk NQk7QVxoUDiKZ8d6XNc1bT3v1RWlJqadmjPRVXBYA84XSSlqbOvsVWtiMwlVhzYGDTee sF2k0A9ySgyt2St69lgH3wIYmL85F+3w+pBvI7WobbqVERipXjt56KFaROxJ65SKASMy uxtw== X-Gm-Message-State: ALoCoQnJMZEWZcJWpDv5/b40VeYfjRPX/2MLHeOHvmeAShS453fL7GNbrdu/ns4YuBQL3Z9NEYkzkCtLgOgzD9n2xy7sl/zK9A== X-Received: by 10.194.222.135 with SMTP id qm7mr4346161wjc.106.1450448393581; Fri, 18 Dec 2015 06:19:53 -0800 (PST) Received: from localhost.localdomain ([78.210.255.2]) by smtp.gmail.com with ESMTPSA id ql10sm15010027wjc.23.2015.12.18.06.19.52 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 18 Dec 2015 06:19:53 -0800 (PST) From: Daniel Lezcano To: tglx@linutronix.de Subject: [PATCH 60/69] clocksource/drivers/dw_apb_timer: Inline apbt_readl and apbt_writel Date: Fri, 18 Dec 2015 15:18:13 +0100 Message-Id: <1450448302-27429-60-git-send-email-daniel.lezcano@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1450448302-27429-1-git-send-email-daniel.lezcano@linaro.org> References: <5672CB9E.7090707@linaro.org> <1450448302-27429-1-git-send-email-daniel.lezcano@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20151218_062015_499078_6CAEBA0F X-CRM114-Status: GOOD ( 10.50 ) X-Spam-Score: -2.7 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jisheng Zhang , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, mingo@kernel.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jisheng Zhang It seems gcc can automatically inline apbt_writel() for us, but apbt_real isn't inlined. This patch makes them inline to get a trivial performance improvement: 4096 rounds of __apbt_read_clocksource() call spend time on Marvell BG4CT platform: before the patch 1275240ns on average after the patch 1263240ns on average so we get 1% performance improvement. Signed-off-by: Jisheng Zhang Signed-off-by: Daniel Lezcano --- drivers/clocksource/dw_apb_timer.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/clocksource/dw_apb_timer.c b/drivers/clocksource/dw_apb_timer.c index 7f95b53..6334526 100644 --- a/drivers/clocksource/dw_apb_timer.c +++ b/drivers/clocksource/dw_apb_timer.c @@ -49,13 +49,13 @@ clocksource_to_dw_apb_clocksource(struct clocksource *cs) return container_of(cs, struct dw_apb_clocksource, cs); } -static u32 apbt_readl(struct dw_apb_timer *timer, unsigned long offs) +static inline u32 apbt_readl(struct dw_apb_timer *timer, unsigned long offs) { return readl(timer->base + offs); } -static void apbt_writel(struct dw_apb_timer *timer, u32 val, - unsigned long offs) +static inline void apbt_writel(struct dw_apb_timer *timer, u32 val, + unsigned long offs) { writel(val, timer->base + offs); }