From patchwork Mon Nov 26 12:54:57 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Simon Horman X-Patchwork-Id: 10698341 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 923A113AD for ; Mon, 26 Nov 2018 13:16:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7C1322977A for ; Mon, 26 Nov 2018 13:16:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6CF9E2985C; Mon, 26 Nov 2018 13:16:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id F00EA2977A for ; Mon, 26 Nov 2018 13:15:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=EbRfzXm7oL5MR0pg1lUoNvRPn3JVdwjE3IHXlsv+hHQ=; b=ge+YIwLcVE+70pSZtSnnJKemqA M0ZC0FPd0ITEGaU2m9Vaw9bqtIpY9I2iQiwU3ESKVcrj+ETZ6b/PZDbonAg7KxJrzDonC/Dtr6Qwe AkXPzBtNROuCeZoly5lHfsdALb1RPlBIJijjOzhNbubkuhyJuv0bDyZ+0q7VUkkGQC5+zoLZ6x5IY T/+pj6LlspXmYn/Se/y5jqeFIhxVMNXBz/epszog0mYoDDfKFJHps8JSDc07Iokh6YPA4OXz+vuae +fBVNAArjGkrr1Z4LZx68hmQ5OxMDB8e/15IwHe9JSJGp6A1NNLqVMKs8Wq8/DyUiItdIT2PiDvZf mDtiOqDA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gRGk1-0001M7-UN; Mon, 26 Nov 2018 13:15:57 +0000 Received: from casper.infradead.org ([85.118.1.10]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gRGgI-0005MG-NZ for linux-arm-kernel@bombadil.infradead.org; Mon, 26 Nov 2018 13:12:06 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=WaCZTfJtppENdotRYxptwTyj4T252r0XvmV0Qg452IE=; b=BNheKLp1II5eyoUKrTmaLyYjg 6c5TMB3gtnAXAcxSIGYjTIfu7XBYpDB04O5qjVmFFrAjK0HXZGrPKgmIoZxbbU+Xop7WX14KFTOmX K7M4sYuG4JrEFvlhTglZF3Viusu29b4Tc+fb/M+yFPVsMdPkiyJicwT+r9kob2o/LzNHzc21RGAwB O3e/giET35eHxiKgxTTWaw1pEQ3CNsL48HRQKGp4hm/vlPAFOOkMtn1tBKmhzF1WWOsajt9bV7xK/ J6W2AMr62WuSE9Q37ez117P1Q0bFhto7hn11ieZKS6xrR+MIi7HMTHw5KxnO2/jhTDMiQ4+nZF3sz taqXYSTvg==; Received: from kirsty.vergenet.net ([202.4.237.240]) by casper.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gRGaU-0005w7-QU for linux-arm-kernel@lists.infradead.org; Mon, 26 Nov 2018 13:06:12 +0000 Received: from reginn.horms.nl (watermunt.horms.nl [80.127.179.77]) by kirsty.vergenet.net (Postfix) with ESMTPA id F34B125BF40; Mon, 26 Nov 2018 23:55:11 +1100 (AEDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=verge.net.au; s=mail; t=1543236912; bh=DANqpPGMXe7CQOAAw2GjVT2xkYxkuhUCXyTtOTRKUHc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rdXEQj5lvIximo0EvJA2+1xsZ5vkmo7xdTZz4UIztHaXH8X2YYY7FJ3s2pPsmYpoQ JZn6AEYnMBUOaLjoq6LScG0ZE6i1zTc/dlUn8agptTvY9Yg2Cc7kSJBlgV+5i/XUhk hLaloZnmFZfVWu+6ZbylQtEJSCX/aaUNMbwDmIQw= Received: by reginn.horms.nl (Postfix, from userid 7100) id B7C7A940AF8; Mon, 26 Nov 2018 13:55:09 +0100 (CET) From: Simon Horman To: linux-renesas-soc@vger.kernel.org Subject: [PATCH 31/40] arm64: dts: renesas: Add CPU capacity-dmips-mhz Date: Mon, 26 Nov 2018 13:54:57 +0100 Message-Id: <2250d856b279d992c392170860a78c2482b1859c.1543229515.git.horms+renesas@verge.net.au> X-Mailer: git-send-email 2.11.0 In-Reply-To: References: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181126_130607_415810_348534D2 X-CRM114-Status: GOOD ( 10.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Simon Horman , Gaku Inami , Magnus Damm , linux-arm-kernel@lists.infradead.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-Virus-Scanned: ClamAV using ClamSMTP From: Gaku Inami Set the capacity-dmips-mhz for R-Car Gen3 SoCs, that is based on dhrystone. The average in 10 times of dhrystone result as follows: r8a7795 SoC (A57x4 + A53x4) CPU max-freq dhrystone --------------------------------- A57 1500 MHz 11470943 lps/s A53 1200 MHz 4798583 lps/s r8a7796 SoC (A57x2 + A53x4) CPU max-freq dhrystone --------------------------------- A57 1500 MHz 11463526 lps/s A53 1200 MHz 4793276 lps/s Based on above, capacity-dmips-mhz values are calculated as follows: r8a7795 SoC A57 : 1024 / (11470943 / 1500) * (11470943 / 1500) = 1024 A53 : 1024 / (11470943 / 1500) * ( 4798583 / 1200) = 535 r8a7796 SoC A57 : 1024 / (11463526 / 1500) * (11463526 / 1500) = 1024 A53 : 1024 / (11463526 / 1500) * ( 4793276 / 1200) = 535 However, since each CPUs have different max frequencies, the final CPU capacities of A53 are scaled by this difference, the values are as follows. [r8a7795 SoC] $ cat /sys/devices/system/cpu/cpu*/cpu_capacity 1024 <---- CPU capacity of A57 1024 1024 1024 428 <---- CPU capacity of A53 428 428 428 [r8a7796 SoC] $ cat /sys/devices/system/cpu/cpu*/cpu_capacity 1024 <---- CPU capacity of A57 1024 428 <---- CPU capacity of A53 428 428 428 Signed-off-by: Gaku Inami Reviewed-by: Geert Uytterhoeven Signed-off-by: Simon Horman --- arch/arm64/boot/dts/renesas/r8a7795.dtsi | 8 ++++++++ arch/arm64/boot/dts/renesas/r8a7796.dtsi | 6 ++++++ 2 files changed, 14 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi index 408ff4e8170a..e94a5f2dbd08 100644 --- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi @@ -157,6 +157,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7795_CLK_Z>; operating-points-v2 = <&cluster0_opp>; + capacity-dmips-mhz = <1024>; #cooling-cells = <2>; }; @@ -169,6 +170,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7795_CLK_Z>; operating-points-v2 = <&cluster0_opp>; + capacity-dmips-mhz = <1024>; #cooling-cells = <2>; }; @@ -181,6 +183,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7795_CLK_Z>; operating-points-v2 = <&cluster0_opp>; + capacity-dmips-mhz = <1024>; #cooling-cells = <2>; }; @@ -193,6 +196,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7795_CLK_Z>; operating-points-v2 = <&cluster0_opp>; + capacity-dmips-mhz = <1024>; #cooling-cells = <2>; }; @@ -205,6 +209,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7795_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; + capacity-dmips-mhz = <535>; }; a53_1: cpu@101 { @@ -216,6 +221,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7795_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; + capacity-dmips-mhz = <535>; }; a53_2: cpu@102 { @@ -227,6 +233,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7795_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; + capacity-dmips-mhz = <535>; }; a53_3: cpu@103 { @@ -238,6 +245,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7795_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; + capacity-dmips-mhz = <535>; }; L2_CA57: cache-controller-0 { diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi index b12bf73bb03b..369d0bccc651 100644 --- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi @@ -162,6 +162,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7796_CLK_Z>; operating-points-v2 = <&cluster0_opp>; + capacity-dmips-mhz = <1024>; #cooling-cells = <2>; }; @@ -174,6 +175,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7796_CLK_Z>; operating-points-v2 = <&cluster0_opp>; + capacity-dmips-mhz = <1024>; #cooling-cells = <2>; }; @@ -186,6 +188,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; + capacity-dmips-mhz = <535>; }; a53_1: cpu@101 { @@ -197,6 +200,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; + capacity-dmips-mhz = <535>; }; a53_2: cpu@102 { @@ -208,6 +212,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; + capacity-dmips-mhz = <535>; }; a53_3: cpu@103 { @@ -219,6 +224,7 @@ enable-method = "psci"; clocks = <&cpg CPG_CORE R8A7796_CLK_Z2>; operating-points-v2 = <&cluster1_opp>; + capacity-dmips-mhz = <535>; }; L2_CA57: cache-controller-0 {