From patchwork Fri Jun 16 06:20:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282040 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 55B8FEB64DA for ; Fri, 16 Jun 2023 06:22:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Z8r5A7IBjL6sIvxuDBbLnET3BxrXjEhb0i+Xqe03zJU=; b=Yu01QHK58Uy5lH 3Rqc4LgVoJ1dgdPb6W5ImNUVFfgHorJy5YZlvIG/iKfUNQEJ9szNL3RW9LRLTyiG8Q8JjPfRqagrG Igtkw6NLxYdg4xjEMLu9g/HzbGWpsIprY6Wckp/1z8H4Ru2fDwcXkTEX09yBDj06T/v+TBz7CBoFR 7accxgSKYhsGWMaJMssXtgTFnlYgSo5db+IVGMCcsINeMcIH+9xyD981btGAFwWlBW8+zx5NJoApY Wnbt1vzTX8NPDj6YXlyl/YqE7+BVG0up3SVAndT07Xf2ioeSF8lyq9QWMQJUDTEjRe8mww3rSu4gZ Zh6F0KV+QVo2aWBdnJag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qA2qK-00GzbM-2K; Fri, 16 Jun 2023 06:21:56 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qA2qG-00GzVA-1G for linux-arm-kernel@lists.infradead.org; Fri, 16 Jun 2023 06:21:54 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2q7-0006nY-VX; Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q5-007kxF-8Y; Fri, 16 Jun 2023 08:21:41 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FTy-8e; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 01/26] PM / devfreq: rockchip-dfi: Make pmu regmap mandatory Date: Fri, 16 Jun 2023 08:20:36 +0200 Message-Id: <20230616062101.601837-2-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org As a matter of fact the regmap_pmu already is mandatory because it is used unconditionally in the driver. Bail out gracefully in probe() rather than crashing later. Fixes: b9d1262bca0af ("PM / devfreq: event: support rockchip dfi controller") Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-2-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- Notes: Changes since v4: - move to beginning of the series to make it easier to backport to stable - Add a Fixes: tag - add missing of_node_put() drivers/devfreq/event/rockchip-dfi.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 39ac069cabc75..74893c06aa087 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -193,14 +193,15 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return dev_err_probe(dev, PTR_ERR(data->clk), "Cannot get the clk pclk_ddr_mon\n"); - /* try to find the optional reference to the pmu syscon */ node = of_parse_phandle(np, "rockchip,pmu", 0); - if (node) { - data->regmap_pmu = syscon_node_to_regmap(node); - of_node_put(node); - if (IS_ERR(data->regmap_pmu)) - return PTR_ERR(data->regmap_pmu); - } + if (!node) + return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); + + data->regmap_pmu = syscon_node_to_regmap(node); + of_node_put(node); + if (IS_ERR(data->regmap_pmu)) + return PTR_ERR(data->regmap_pmu); + data->dev = dev; desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL); From patchwork Fri Jun 16 06:20:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282041 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 30C4DEB64DA for ; Fri, 16 Jun 2023 06:22:34 +0000 (UTC) DKIM-Signature: v=1; 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Fri, 16 Jun 2023 06:21:55 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2q8-0006nX-74; Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q5-007kxD-4f; Fri, 16 Jun 2023 08:21:41 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FU1-Aj; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 02/26] PM / devfreq: rockchip-dfi: Embed desc into private data struct Date: Fri, 16 Jun 2023 08:20:37 +0200 Message-Id: <20230616062101.601837-3-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org No need for an extra allocation, just embed the struct devfreq_event_desc into the private data struct. Reviewed-by: Heiko Stuebner Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-3-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 74893c06aa087..467f9f42d38f7 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -49,7 +49,7 @@ struct dmc_usage { */ struct rockchip_dfi { struct devfreq_event_dev *edev; - struct devfreq_event_desc *desc; + struct devfreq_event_desc desc; struct dmc_usage ch_usage[RK3399_DMC_NUM_CH]; struct device *dev; void __iomem *regs; @@ -204,14 +204,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) data->dev = dev; - desc = devm_kzalloc(dev, sizeof(*desc), GFP_KERNEL); - if (!desc) - return -ENOMEM; - + desc = &data->desc; desc->ops = &rockchip_dfi_ops; desc->driver_data = data; desc->name = np->name; - data->desc = desc; data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); if (IS_ERR(data->edev)) { From patchwork Fri Jun 16 06:20:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282049 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0472BEB64D7 for ; Fri, 16 Jun 2023 06:23:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q5-007kxN-E7; Fri, 16 Jun 2023 08:21:41 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FU5-DB; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 03/26] PM / devfreq: rockchip-dfi: use consistent name for private data struct Date: Fri, 16 Jun 2023 08:20:38 +0200 Message-Id: <20230616062101.601837-4-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_232152_665848_D6BDA29F X-CRM114-Status: GOOD ( 20.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The variable name for the private data struct is 'info' in some functions and 'data' in others. Both names do not give a clue what type the variable has, so consistently use 'dfi'. Reviewed-by: Heiko Stuebner Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-4-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 72 ++++++++++++++-------------- 1 file changed, 36 insertions(+), 36 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 467f9f42d38f7..e19e5acaa362c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -59,13 +59,13 @@ struct rockchip_dfi { static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); - void __iomem *dfi_regs = info->regs; + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); + void __iomem *dfi_regs = dfi->regs; u32 val; u32 ddr_type; /* get ddr type */ - regmap_read(info->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); + regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & RK3399_PMUGRF_DDRTYPE_MASK; @@ -84,28 +84,28 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); - void __iomem *dfi_regs = info->regs; + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); + void __iomem *dfi_regs = dfi->regs; writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); } static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); u32 tmp, max = 0; u32 i, busier_ch = 0; - void __iomem *dfi_regs = info->regs; + void __iomem *dfi_regs = dfi->regs; rockchip_dfi_stop_hardware_counter(edev); /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - info->ch_usage[i].access = readl_relaxed(dfi_regs + + dfi->ch_usage[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4; - info->ch_usage[i].total = readl_relaxed(dfi_regs + + dfi->ch_usage[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); - tmp = info->ch_usage[i].access; + tmp = dfi->ch_usage[i].access; if (tmp > max) { busier_ch = i; max = tmp; @@ -118,20 +118,20 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) static int rockchip_dfi_disable(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); rockchip_dfi_stop_hardware_counter(edev); - clk_disable_unprepare(info->clk); + clk_disable_unprepare(dfi->clk); return 0; } static int rockchip_dfi_enable(struct devfreq_event_dev *edev) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); int ret; - ret = clk_prepare_enable(info->clk); + ret = clk_prepare_enable(dfi->clk); if (ret) { dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret); return ret; @@ -149,13 +149,13 @@ static int rockchip_dfi_set_event(struct devfreq_event_dev *edev) static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata) { - struct rockchip_dfi *info = devfreq_event_get_drvdata(edev); + struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); int busier_ch; busier_ch = rockchip_dfi_get_busier_ch(edev); - edata->load_count = info->ch_usage[busier_ch].access; - edata->total_count = info->ch_usage[busier_ch].total; + edata->load_count = dfi->ch_usage[busier_ch].access; + edata->total_count = dfi->ch_usage[busier_ch].total; return 0; } @@ -176,47 +176,47 @@ MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); static int rockchip_dfi_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - struct rockchip_dfi *data; + struct rockchip_dfi *dfi; struct devfreq_event_desc *desc; struct device_node *np = pdev->dev.of_node, *node; - data = devm_kzalloc(dev, sizeof(struct rockchip_dfi), GFP_KERNEL); - if (!data) + dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL); + if (!dfi) return -ENOMEM; - data->regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(data->regs)) - return PTR_ERR(data->regs); + dfi->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(dfi->regs)) + return PTR_ERR(dfi->regs); - data->clk = devm_clk_get(dev, "pclk_ddr_mon"); - if (IS_ERR(data->clk)) - return dev_err_probe(dev, PTR_ERR(data->clk), + dfi->clk = devm_clk_get(dev, "pclk_ddr_mon"); + if (IS_ERR(dfi->clk)) + return dev_err_probe(dev, PTR_ERR(dfi->clk), "Cannot get the clk pclk_ddr_mon\n"); node = of_parse_phandle(np, "rockchip,pmu", 0); if (!node) return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); - data->regmap_pmu = syscon_node_to_regmap(node); + dfi->regmap_pmu = syscon_node_to_regmap(node); of_node_put(node); - if (IS_ERR(data->regmap_pmu)) - return PTR_ERR(data->regmap_pmu); + if (IS_ERR(dfi->regmap_pmu)) + return PTR_ERR(dfi->regmap_pmu); - data->dev = dev; + dfi->dev = dev; - desc = &data->desc; + desc = &dfi->desc; desc->ops = &rockchip_dfi_ops; - desc->driver_data = data; + desc->driver_data = dfi; desc->name = np->name; - data->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); - if (IS_ERR(data->edev)) { + dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); + if (IS_ERR(dfi->edev)) { dev_err(&pdev->dev, "failed to add devfreq-event device\n"); - return PTR_ERR(data->edev); + return PTR_ERR(dfi->edev); } - platform_set_drvdata(pdev, data); + platform_set_drvdata(pdev, dfi); return 0; } From patchwork Fri Jun 16 06:20:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282045 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B0756EB64DD for ; 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Fri, 16 Jun 2023 06:22:21 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qA2qG-00GzV6-1D for linux-arm-kernel@lists.infradead.org; Fri, 16 Jun 2023 06:21:59 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2q7-0006nc-VV; Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q6-007kxk-SO; Fri, 16 Jun 2023 08:21:42 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUA-GA; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 04/26] PM / devfreq: rockchip-dfi: Add SoC specific init function Date: Fri, 16 Jun 2023 08:20:39 +0200 Message-Id: <20230616062101.601837-5-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_232152_520431_61BBC35D X-CRM114-Status: GOOD ( 22.16 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Move the RK3399 specifics to a SoC specific init function to make the way free for supporting other SoCs later. Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-5-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- Notes: Changes since v4: - use of_device_get_match_data() - use a callback rather than a struct type as driver data drivers/devfreq/event/rockchip-dfi.c | 48 +++++++++++++++++++--------- 1 file changed, 33 insertions(+), 15 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index e19e5acaa362c..6b1ef29df7048 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -17,6 +17,7 @@ #include #include #include +#include #include @@ -55,27 +56,21 @@ struct rockchip_dfi { void __iomem *regs; struct regmap *regmap_pmu; struct clk *clk; + u32 ddr_type; }; static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; - u32 val; - u32 ddr_type; - - /* get ddr type */ - regmap_read(dfi->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; /* clear DDRMON_CTRL setting */ writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) + if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); - else if (ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) + else if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ @@ -167,8 +162,26 @@ static const struct devfreq_event_ops rockchip_dfi_ops = { .set_event = rockchip_dfi_set_event, }; +static int rk3399_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 val; + + dfi->clk = devm_clk_get(dfi->dev, "pclk_ddr_mon"); + if (IS_ERR(dfi->clk)) + return dev_err_probe(dfi->dev, PTR_ERR(dfi->clk), + "Cannot get the clk pclk_ddr_mon\n"); + + /* get ddr type */ + regmap_read(regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); + dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & + RK3399_PMUGRF_DDRTYPE_MASK; + + return 0; +}; + static const struct of_device_id rockchip_dfi_id_match[] = { - { .compatible = "rockchip,rk3399-dfi" }, + { .compatible = "rockchip,rk3399-dfi", .data = rk3399_dfi_init }, { }, }; MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); @@ -179,6 +192,12 @@ static int rockchip_dfi_probe(struct platform_device *pdev) struct rockchip_dfi *dfi; struct devfreq_event_desc *desc; struct device_node *np = pdev->dev.of_node, *node; + int (*soc_init)(struct rockchip_dfi *dfi); + int ret; + + soc_init = of_device_get_match_data(&pdev->dev); + if (!soc_init) + return -EINVAL; dfi = devm_kzalloc(dev, sizeof(*dfi), GFP_KERNEL); if (!dfi) @@ -188,11 +207,6 @@ static int rockchip_dfi_probe(struct platform_device *pdev) if (IS_ERR(dfi->regs)) return PTR_ERR(dfi->regs); - dfi->clk = devm_clk_get(dev, "pclk_ddr_mon"); - if (IS_ERR(dfi->clk)) - return dev_err_probe(dev, PTR_ERR(dfi->clk), - "Cannot get the clk pclk_ddr_mon\n"); - node = of_parse_phandle(np, "rockchip,pmu", 0); if (!node) return dev_err_probe(&pdev->dev, -ENODEV, "Can't find pmu_grf registers\n"); @@ -209,6 +223,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) desc->driver_data = dfi; desc->name = np->name; + ret = soc_init(dfi); + if (ret) + return ret; + dfi->edev = devm_devfreq_event_add_edev(&pdev->dev, desc); if (IS_ERR(dfi->edev)) { dev_err(&pdev->dev, From patchwork Fri Jun 16 06:20:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282043 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 280D6EB64D8 for ; Fri, 16 Jun 2023 06:22:39 +0000 (UTC) DKIM-Signature: v=1; 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Fri, 16 Jun 2023 06:21:57 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2q8-0006nd-74; Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q7-007kxm-3a; Fri, 16 Jun 2023 08:21:43 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUG-Hj; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 05/26] PM / devfreq: rockchip-dfi: dfi store raw values in counter struct Date: Fri, 16 Jun 2023 08:20:40 +0200 Message-Id: <20230616062101.601837-6-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_232152_497474_E8E7D1EA X-CRM114-Status: GOOD ( 16.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When adding perf support to the DFI driver the perf part will need the raw counter values, so move the fixed * 4 factor to rockchip_dfi_get_event(). Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-6-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 6b1ef29df7048..680f629da64fc 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -97,7 +97,7 @@ static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { dfi->ch_usage[i].access = readl_relaxed(dfi_regs + - DDRMON_CH0_DFI_ACCESS_NUM + i * 20) * 4; + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); dfi->ch_usage[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); tmp = dfi->ch_usage[i].access; @@ -149,7 +149,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, busier_ch = rockchip_dfi_get_busier_ch(edev); - edata->load_count = dfi->ch_usage[busier_ch].access; + edata->load_count = dfi->ch_usage[busier_ch].access * 4; edata->total_count = dfi->ch_usage[busier_ch].total; return 0; From patchwork Fri Jun 16 06:20:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282047 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 147C8EB64DC for ; Fri, 16 Jun 2023 06:22:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q5-007kxR-Ii; Fri, 16 Jun 2023 08:21:41 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUK-K9; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 06/26] PM / devfreq: rockchip-dfi: Use free running counter Date: Fri, 16 Jun 2023 08:20:41 +0200 Message-Id: <20230616062101.601837-7-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_232153_498483_ECEEEB6B X-CRM114-Status: GOOD ( 22.29 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The DDR_MON counters are free running counters. These are resetted to 0 when starting them over like currently done when reading the current counter values. Resetting the counters becomes a problem with perf support we want to add later, because perf needs counters that are not modified elsewhere. This patch removes resetting the counters and keeps them running instead. That means we no longer use the absolute counter values but instead compare them with the counter values we read last time. Not stopping the counters also has the impact that they are running while we are reading them. We cannot read multiple timers atomically, so the values do not exactly fit together. The effect should be negligible though as the time between two measurements is some orders of magnitude bigger than the time we need to read multiple registers. Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-7-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- Notes: Changes since v4: - rephrase commit message - Drop unused variable drivers/devfreq/event/rockchip-dfi.c | 52 ++++++++++++++++------------ 1 file changed, 30 insertions(+), 22 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 680f629da64fc..126bb744645b6 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -38,11 +38,15 @@ #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 -struct dmc_usage { +struct dmc_count_channel { u32 access; u32 total; }; +struct dmc_count { + struct dmc_count_channel c[RK3399_DMC_NUM_CH]; +}; + /* * The dfi controller can monitor DDR load. It has an upper and lower threshold * for the operating points. Whenever the usage leaves these bounds an event is @@ -51,7 +55,7 @@ struct dmc_usage { struct rockchip_dfi { struct devfreq_event_dev *edev; struct devfreq_event_desc desc; - struct dmc_usage ch_usage[RK3399_DMC_NUM_CH]; + struct dmc_count last_event_count; struct device *dev; void __iomem *regs; struct regmap *regmap_pmu; @@ -85,30 +89,18 @@ static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); } -static int rockchip_dfi_get_busier_ch(struct devfreq_event_dev *edev) +static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - u32 tmp, max = 0; - u32 i, busier_ch = 0; + u32 i; void __iomem *dfi_regs = dfi->regs; - rockchip_dfi_stop_hardware_counter(edev); - - /* Find out which channel is busier */ for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - dfi->ch_usage[i].access = readl_relaxed(dfi_regs + + count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); - dfi->ch_usage[i].total = readl_relaxed(dfi_regs + + count->c[i].total = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); - tmp = dfi->ch_usage[i].access; - if (tmp > max) { - busier_ch = i; - max = tmp; - } } - rockchip_dfi_start_hardware_counter(edev); - - return busier_ch; } static int rockchip_dfi_disable(struct devfreq_event_dev *edev) @@ -145,12 +137,28 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct devfreq_event_data *edata) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - int busier_ch; + struct dmc_count count; + struct dmc_count *last = &dfi->last_event_count; + u32 access = 0, total = 0; + int i; + + rockchip_dfi_read_counters(edev, &count); + + /* We can only report one channel, so find the busiest one */ + for (i = 0; i < RK3399_DMC_NUM_CH; i++) { + u32 a = count.c[i].access - last->c[i].access; + u32 t = count.c[i].total - last->c[i].total; + + if (a > access) { + access = a; + total = t; + } + } - busier_ch = rockchip_dfi_get_busier_ch(edev); + edata->load_count = access * 4; + edata->total_count = total; - edata->load_count = dfi->ch_usage[busier_ch].access * 4; - edata->total_count = dfi->ch_usage[busier_ch].total; + dfi->last_event_count = count; return 0; } From patchwork Fri Jun 16 06:20:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282054 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 92B44EB64DB for ; Fri, 16 Jun 2023 06:23:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q5-007kxY-Rl; Fri, 16 Jun 2023 08:21:41 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUS-Lp; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 07/26] PM / devfreq: rockchip-dfi: introduce channel mask Date: Fri, 16 Jun 2023 08:20:42 +0200 Message-Id: <20230616062101.601837-8-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_232201_766667_5E5D434C X-CRM114-Status: GOOD ( 19.30 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Different Rockchip SoC variants have a different number of channels. Introduce a channel mask to make the number of channels configurable from SoC initialization code. Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-8-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 23 +++++++++++++++++------ 1 file changed, 17 insertions(+), 6 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 126bb744645b6..82de24a027579 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -18,10 +18,11 @@ #include #include #include +#include #include -#define RK3399_DMC_NUM_CH 2 +#define DMC_MAX_CHANNELS 2 /* DDRMON_CTRL */ #define DDRMON_CTRL 0x04 @@ -44,7 +45,7 @@ struct dmc_count_channel { }; struct dmc_count { - struct dmc_count_channel c[RK3399_DMC_NUM_CH]; + struct dmc_count_channel c[DMC_MAX_CHANNELS]; }; /* @@ -61,6 +62,7 @@ struct rockchip_dfi { struct regmap *regmap_pmu; struct clk *clk; u32 ddr_type; + unsigned int channel_mask; }; static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) @@ -95,7 +97,9 @@ static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dm u32 i; void __iomem *dfi_regs = dfi->regs; - for (i = 0; i < RK3399_DMC_NUM_CH; i++) { + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + if (!(dfi->channel_mask & BIT(i))) + continue; count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); count->c[i].total = readl_relaxed(dfi_regs + @@ -145,9 +149,14 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, rockchip_dfi_read_counters(edev, &count); /* We can only report one channel, so find the busiest one */ - for (i = 0; i < RK3399_DMC_NUM_CH; i++) { - u32 a = count.c[i].access - last->c[i].access; - u32 t = count.c[i].total - last->c[i].total; + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + u32 a, t; + + if (!(dfi->channel_mask & BIT(i))) + continue; + + a = count.c[i].access - last->c[i].access; + t = count.c[i].total - last->c[i].total; if (a > access) { access = a; @@ -185,6 +194,8 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & RK3399_PMUGRF_DDRTYPE_MASK; 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Fri, 16 Jun 2023 08:21:45 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUW-O9; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 08/26] PM / devfreq: rk3399_dmc,dfi: generalize DDRTYPE defines Date: Fri, 16 Jun 2023 08:20:43 +0200 Message-Id: <20230616062101.601837-9-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072150_877329_B6079F70 X-CRM114-Status: GOOD ( 21.25 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The DDRTYPE defines are named to be RK3399 specific, but they can be used for other Rockchip SoCs as well, so replace the RK3399_PMUGRF_ prefix with ROCKCHIP_. They are defined in a SoC specific header file, so when generalizing the prefix also move the new defines to a SoC agnostic header file. While at it use GENMASK to define the DDRTYPE bitfield and give it a name including the full register name. Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-9-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 9 +++++---- drivers/devfreq/rk3399_dmc.c | 10 +++++----- include/soc/rockchip/rk3399_grf.h | 7 +------ include/soc/rockchip/rockchip_grf.h | 17 +++++++++++++++++ 4 files changed, 28 insertions(+), 15 deletions(-) create mode 100644 include/soc/rockchip/rockchip_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 82de24a027579..6bccb6fbcfc0c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -18,8 +18,10 @@ #include #include #include +#include #include +#include #include #define DMC_MAX_CHANNELS 2 @@ -74,9 +76,9 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR3) + if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == RK3399_PMUGRF_DDRTYPE_LPDDR4) + else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ @@ -191,8 +193,7 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) /* get ddr type */ regmap_read(regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - dfi->ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; + dfi->ddr_type = FIELD_GET(RK3399_PMUGRF_OS_REG2_DDRTYPE, val); dfi->channel_mask = GENMASK(1, 0); diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c index daff407026157..fd2c5ffedf41e 100644 --- a/drivers/devfreq/rk3399_dmc.c +++ b/drivers/devfreq/rk3399_dmc.c @@ -22,6 +22,7 @@ #include #include +#include #include #include @@ -381,17 +382,16 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev) } regmap_read(data->regmap_pmu, RK3399_PMUGRF_OS_REG2, &val); - ddr_type = (val >> RK3399_PMUGRF_DDRTYPE_SHIFT) & - RK3399_PMUGRF_DDRTYPE_MASK; + ddr_type = FIELD_GET(RK3399_PMUGRF_OS_REG2_DDRTYPE, val); switch (ddr_type) { - case RK3399_PMUGRF_DDRTYPE_DDR3: + case ROCKCHIP_DDRTYPE_DDR3: data->odt_dis_freq = data->ddr3_odt_dis_freq; break; - case RK3399_PMUGRF_DDRTYPE_LPDDR3: + case ROCKCHIP_DDRTYPE_LPDDR3: data->odt_dis_freq = data->lpddr3_odt_dis_freq; break; - case RK3399_PMUGRF_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4: data->odt_dis_freq = data->lpddr4_odt_dis_freq; break; default: diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h index 3eebabcb28123..775f8444bea8d 100644 --- a/include/soc/rockchip/rk3399_grf.h +++ b/include/soc/rockchip/rk3399_grf.h @@ -11,11 +11,6 @@ /* PMU GRF Registers */ #define RK3399_PMUGRF_OS_REG2 0x308 -#define RK3399_PMUGRF_DDRTYPE_SHIFT 13 -#define RK3399_PMUGRF_DDRTYPE_MASK 7 -#define RK3399_PMUGRF_DDRTYPE_DDR3 3 -#define RK3399_PMUGRF_DDRTYPE_LPDDR2 5 -#define RK3399_PMUGRF_DDRTYPE_LPDDR3 6 -#define RK3399_PMUGRF_DDRTYPE_LPDDR4 7 +#define RK3399_PMUGRF_OS_REG2_DDRTYPE GENMASK(15, 13) #endif diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h new file mode 100644 index 0000000000000..dde1a9796ccb5 --- /dev/null +++ b/include/soc/rockchip/rockchip_grf.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Rockchip General Register Files definitions + */ + +#ifndef __SOC_ROCKCHIP_GRF_H +#define __SOC_ROCKCHIP_GRF_H + +/* Rockchip DDRTYPE defines */ +enum { + ROCKCHIP_DDRTYPE_DDR3 = 3, + ROCKCHIP_DDRTYPE_LPDDR2 = 5, + ROCKCHIP_DDRTYPE_LPDDR3 = 6, + ROCKCHIP_DDRTYPE_LPDDR4 = 7, +}; + +#endif /* __SOC_ROCKCHIP_GRF_H */ From patchwork Fri Jun 16 06:20:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282063 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F2673EB64D8 for ; Fri, 16 Jun 2023 06:24:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:45 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUa-Q7; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 09/26] PM / devfreq: rockchip-dfi: Clean up DDR type register defines Date: Fri, 16 Jun 2023 08:20:44 +0200 Message-Id: <20230616062101.601837-10-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072221_655903_C1F59293 X-CRM114-Status: GOOD ( 16.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Use the HIWORD_UPDATE() define known from other rockchip drivers to make the defines look less odd to the readers who've seen other rockchip drivers. The HIWORD registers have their functional bits in the lower 16 bits whereas the upper 16 bits contain a mask. Only the functional bits that have the corresponding mask bit set are modified during a write. Although the register writes look different, the end result should be the same, at least there's no functional change intended with this patch. Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-10-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 33 ++++++++++++++++++---------- 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 6bccb6fbcfc0c..6b3ef97b3be09 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -26,15 +26,19 @@ #define DMC_MAX_CHANNELS 2 +#define HIWORD_UPDATE(val, mask) ((val) | (mask) << 16) + /* DDRMON_CTRL */ #define DDRMON_CTRL 0x04 -#define CLR_DDRMON_CTRL (0x1f0000 << 0) -#define LPDDR4_EN (0x10001 << 4) -#define HARDWARE_EN (0x10001 << 3) -#define LPDDR3_EN (0x10001 << 2) -#define SOFTWARE_EN (0x10001 << 1) -#define SOFTWARE_DIS (0x10000 << 1) -#define TIME_CNT_EN (0x10001 << 0) +#define DDRMON_CTRL_DDR4 BIT(5) +#define DDRMON_CTRL_LPDDR4 BIT(4) +#define DDRMON_CTRL_HARDWARE_EN BIT(3) +#define DDRMON_CTRL_LPDDR23 BIT(2) +#define DDRMON_CTRL_SOFTWARE_EN BIT(1) +#define DDRMON_CTRL_TIMER_CNT_EN BIT(0) +#define DDRMON_CTRL_DDR_TYPE_MASK (DDRMON_CTRL_DDR4 | \ + DDRMON_CTRL_LPDDR4 | \ + DDRMON_CTRL_LPDDR23) #define DDRMON_CH0_COUNT_NUM 0x28 #define DDRMON_CH0_DFI_ACCESS_NUM 0x2c @@ -73,16 +77,20 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) void __iomem *dfi_regs = dfi->regs; /* clear DDRMON_CTRL setting */ - writel_relaxed(CLR_DDRMON_CTRL, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_TIMER_CNT_EN | DDRMON_CTRL_SOFTWARE_EN | + DDRMON_CTRL_HARDWARE_EN), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) - writel_relaxed(LPDDR3_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + DDRMON_CTRL); else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) - writel_relaxed(LPDDR4_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + DDRMON_CTRL); /* enable count, use software mode */ - writel_relaxed(SOFTWARE_EN, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + DDRMON_CTRL); } static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) @@ -90,7 +98,8 @@ static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; - writel_relaxed(SOFTWARE_DIS, dfi_regs + DDRMON_CTRL); + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + DDRMON_CTRL); } static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) From patchwork Fri Jun 16 06:20:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282051 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7139CEB64D7 for ; Fri, 16 Jun 2023 06:23:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUe-Rn; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 10/26] PM / devfreq: rockchip-dfi: Add RK3568 support Date: Fri, 16 Jun 2023 08:20:45 +0200 Message-Id: <20230616062101.601837-11-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072155_432181_99C436ED X-CRM114-Status: GOOD ( 18.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This adds RK3568 support to the DFI driver. Only iniitialization differs from the currently supported RK3399. Link: https://lore.kernel.org/r/20230524083153.2046084-11-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 21 +++++++++++++++++++++ include/soc/rockchip/rk3568_grf.h | 12 ++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 include/soc/rockchip/rk3568_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 6b3ef97b3be09..261d112580c9e 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -23,6 +23,7 @@ #include #include +#include #define DMC_MAX_CHANNELS 2 @@ -209,10 +210,30 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) return 0; }; +static int rk3568_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 reg2, reg3; + + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG2, ®2); + regmap_read(regmap_pmu, RK3568_PMUGRF_OS_REG3, ®3); + + dfi->ddr_type = FIELD_GET(RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO, reg2); + + if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) + dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + + dfi->channel_mask = 1; + + return 0; +}; + static const struct of_device_id rockchip_dfi_id_match[] = { { .compatible = "rockchip,rk3399-dfi", .data = rk3399_dfi_init }, + { .compatible = "rockchip,rk3568-dfi", .data = rk3568_dfi_init }, { }, }; + MODULE_DEVICE_TABLE(of, rockchip_dfi_id_match); static int rockchip_dfi_probe(struct platform_device *pdev) diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h new file mode 100644 index 0000000000000..575584e9d8834 --- /dev/null +++ b/include/soc/rockchip/rk3568_grf.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef __SOC_RK3568_GRF_H +#define __SOC_RK3568_GRF_H + +#define RK3568_PMUGRF_OS_REG2 0x208 +#define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) + +#define RK3568_PMUGRF_OS_REG3 0x20c +#define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) +#define RK3568_PMUGRF_OS_REG3_SYSREG_VERSION GENMASK(31, 28) + +#endif /* __SOC_RK3568_GRF_H */ From patchwork Fri Jun 16 06:20:46 2023 Content-Type: text/plain; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUi-Tb; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 11/26] PM / devfreq: rockchip-dfi: Handle LPDDR2 correctly Date: Fri, 16 Jun 2023 08:20:46 +0200 Message-Id: <20230616062101.601837-12-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072202_571328_F2C33CDC X-CRM114-Status: GOOD ( 14.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org According to the downstream driver the DDRMON_CTRL_LPDDR23 bit must be set for both LPDDR2 and LPDDR3. Add the missing LPDDR2 case and while at it turn the if/else if/else into switch/case which makes it easier to read. Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-12-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 261d112580c9e..16cd5365671f7 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -82,12 +82,19 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) DDRMON_CTRL_HARDWARE_EN), dfi_regs + DDRMON_CTRL); /* set ddr type to dfi */ - if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR3) + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); - else if (dfi->ddr_type == ROCKCHIP_DDRTYPE_LPDDR4) + break; + case ROCKCHIP_DDRTYPE_LPDDR4: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); + break; + default: + break; + } /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), From patchwork Fri Jun 16 06:20:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282061 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9FCEEEB64D7 for ; Fri, 16 Jun 2023 06:24:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q4-003FUm-Vw; Fri, 16 Jun 2023 08:21:40 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 12/26] PM / devfreq: rockchip-dfi: Handle LPDDR4X Date: Fri, 16 Jun 2023 08:20:47 +0200 Message-Id: <20230616062101.601837-13-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072218_223039_FB377555 X-CRM114-Status: GOOD ( 14.63 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org In the DFI driver LPDDR4X can be handled in the same way as LPDDR4. Add the missing case. Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-13-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 1 + include/soc/rockchip/rockchip_grf.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 16cd5365671f7..0a568c5551699 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -89,6 +89,7 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) dfi_regs + DDRMON_CTRL); break; case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), dfi_regs + DDRMON_CTRL); break; diff --git a/include/soc/rockchip/rockchip_grf.h b/include/soc/rockchip/rockchip_grf.h index dde1a9796ccb5..e46fd72aea8d1 100644 --- a/include/soc/rockchip/rockchip_grf.h +++ b/include/soc/rockchip/rockchip_grf.h @@ -12,6 +12,7 @@ enum { ROCKCHIP_DDRTYPE_LPDDR2 = 5, ROCKCHIP_DDRTYPE_LPDDR3 = 6, ROCKCHIP_DDRTYPE_LPDDR4 = 7, + ROCKCHIP_DDRTYPE_LPDDR4X = 8, }; #endif /* __SOC_ROCKCHIP_GRF_H */ From patchwork Fri Jun 16 06:20:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282052 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 40379EB64DA for ; Fri, 16 Jun 2023 06:23:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q7-007kxt-Rh; Fri, 16 Jun 2023 08:21:43 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FUs-1T; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 13/26] PM / devfreq: rockchip-dfi: Pass private data struct to internal functions Date: Fri, 16 Jun 2023 08:20:48 +0200 Message-Id: <20230616062101.601837-14-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_232156_203937_266C8198 X-CRM114-Status: GOOD ( 16.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The internal functions do not need the struct devfreq_event_dev *, so pass them the struct rockchip_dfi *. This is a preparation for adding perf support later which doesn't have a struct devfreq_event_dev *. Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-14-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 0a568c5551699..d39db5de7f19c 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -72,9 +72,8 @@ struct rockchip_dfi { unsigned int channel_mask; }; -static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) +static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; /* clear DDRMON_CTRL setting */ @@ -102,18 +101,16 @@ static void rockchip_dfi_start_hardware_counter(struct devfreq_event_dev *edev) dfi_regs + DDRMON_CTRL); } -static void rockchip_dfi_stop_hardware_counter(struct devfreq_event_dev *edev) +static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); void __iomem *dfi_regs = dfi->regs; writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); } -static void rockchip_dfi_read_counters(struct devfreq_event_dev *edev, struct dmc_count *count) +static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) { - struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); u32 i; void __iomem *dfi_regs = dfi->regs; @@ -131,7 +128,7 @@ static int rockchip_dfi_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - rockchip_dfi_stop_hardware_counter(edev); + rockchip_dfi_stop_hardware_counter(dfi); clk_disable_unprepare(dfi->clk); return 0; @@ -148,7 +145,7 @@ static int rockchip_dfi_enable(struct devfreq_event_dev *edev) return ret; } - rockchip_dfi_start_hardware_counter(edev); + rockchip_dfi_start_hardware_counter(dfi); return 0; } @@ -166,7 +163,7 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, u32 access = 0, total = 0; int i; - rockchip_dfi_read_counters(edev, &count); + rockchip_dfi_read_counters(dfi, &count); /* We can only report one channel, so find the busiest one */ for (i = 0; i < DMC_MAX_CHANNELS; i++) { From patchwork Fri Jun 16 06:20:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282064 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 9EB62EB64D8 for ; Fri, 16 Jun 2023 06:24:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FUz-2x; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 14/26] PM / devfreq: rockchip-dfi: Prepare for multiple users Date: Fri, 16 Jun 2023 08:20:49 +0200 Message-Id: <20230616062101.601837-15-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072202_460953_F18C52B6 X-CRM114-Status: GOOD ( 20.45 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org When adding perf support later the DFI must be enabled when either of devfreq-event or perf is active. Prepare for that by adding a usage counter for the DFI. Also move enabling and disabling of the clock away from the devfreq-event specific functions to which the perf specific part won't have access. Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-15-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 57 +++++++++++++++++++--------- 1 file changed, 40 insertions(+), 17 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index d39db5de7f19c..8a7af7c32ae0d 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -68,13 +68,28 @@ struct rockchip_dfi { void __iomem *regs; struct regmap *regmap_pmu; struct clk *clk; + int usecount; + struct mutex mutex; u32 ddr_type; unsigned int channel_mask; }; -static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) +static int rockchip_dfi_enable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + int ret = 0; + + mutex_lock(&dfi->mutex); + + dfi->usecount++; + if (dfi->usecount > 1) + goto out; + + ret = clk_prepare_enable(dfi->clk); + if (ret) { + dev_err(&dfi->edev->dev, "failed to enable dfi clk: %d\n", ret); + goto out; + } /* clear DDRMON_CTRL setting */ writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_TIMER_CNT_EN | DDRMON_CTRL_SOFTWARE_EN | @@ -99,14 +114,30 @@ static void rockchip_dfi_start_hardware_counter(struct rockchip_dfi *dfi) /* enable count, use software mode */ writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); +out: + mutex_unlock(&dfi->mutex); + + return ret; } -static void rockchip_dfi_stop_hardware_counter(struct rockchip_dfi *dfi) +static void rockchip_dfi_disable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + mutex_lock(&dfi->mutex); + + dfi->usecount--; + + WARN_ON_ONCE(dfi->usecount < 0); + + if (dfi->usecount > 0) + goto out; + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), dfi_regs + DDRMON_CTRL); + clk_disable_unprepare(dfi->clk); +out: + mutex_unlock(&dfi->mutex); } static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) @@ -124,29 +155,20 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun } } -static int rockchip_dfi_disable(struct devfreq_event_dev *edev) +static int rockchip_dfi_event_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - rockchip_dfi_stop_hardware_counter(dfi); - clk_disable_unprepare(dfi->clk); + rockchip_dfi_disable(dfi); return 0; } -static int rockchip_dfi_enable(struct devfreq_event_dev *edev) +static int rockchip_dfi_event_enable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); - int ret; - - ret = clk_prepare_enable(dfi->clk); - if (ret) { - dev_err(&edev->dev, "failed to enable dfi clk: %d\n", ret); - return ret; - } - rockchip_dfi_start_hardware_counter(dfi); - return 0; + return rockchip_dfi_enable(dfi); } static int rockchip_dfi_set_event(struct devfreq_event_dev *edev) @@ -190,8 +212,8 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, } static const struct devfreq_event_ops rockchip_dfi_ops = { - .disable = rockchip_dfi_disable, - .enable = rockchip_dfi_enable, + .disable = rockchip_dfi_event_disable, + .enable = rockchip_dfi_event_enable, .get_event = rockchip_dfi_get_event, .set_event = rockchip_dfi_set_event, }; @@ -272,6 +294,7 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return PTR_ERR(dfi->regmap_pmu); dfi->dev = dev; + mutex_init(&dfi->mutex); desc = &dfi->desc; desc->ops = &rockchip_dfi_ops; From patchwork Fri Jun 16 06:20:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282050 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D5BD7EB64D8 for ; Fri, 16 Jun 2023 06:23:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:45 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q8-007kyE-HI; Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FV3-5D; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 15/26] PM / devfreq: rockchip-dfi: give variable a better name Date: Fri, 16 Jun 2023 08:20:50 +0200 Message-Id: <20230616062101.601837-16-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_232155_097466_EAC791F6 X-CRM114-Status: GOOD ( 18.13 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org struct dmc_count_channel::total counts the clock cycles of the DDR controller. Rename it accordingly to give the reader a better idea what this is about. While at it, at some documentation to struct dmc_count_channel. Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-16-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 8a7af7c32ae0d..50e497455dc69 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -46,9 +46,14 @@ #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 +/** + * struct dmc_count_channel - structure to hold counter values from the DDR controller + * @access: Number of read and write accesses + * @clock_cycles: DDR clock cycles + */ struct dmc_count_channel { u32 access; - u32 total; + u32 clock_cycles; }; struct dmc_count { @@ -150,7 +155,7 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun continue; count->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); - count->c[i].total = readl_relaxed(dfi_regs + + count->c[i].clock_cycles = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); } } @@ -182,29 +187,29 @@ static int rockchip_dfi_get_event(struct devfreq_event_dev *edev, struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); struct dmc_count count; struct dmc_count *last = &dfi->last_event_count; - u32 access = 0, total = 0; + u32 access = 0, clock_cycles = 0; int i; rockchip_dfi_read_counters(dfi, &count); /* We can only report one channel, so find the busiest one */ for (i = 0; i < DMC_MAX_CHANNELS; i++) { - u32 a, t; + u32 a, c; if (!(dfi->channel_mask & BIT(i))) continue; a = count.c[i].access - last->c[i].access; - t = count.c[i].total - last->c[i].total; + c = count.c[i].clock_cycles - last->c[i].clock_cycles; if (a > access) { access = a; - total = t; + clock_cycles = c; } } edata->load_count = access * 4; - edata->total_count = total; + edata->total_count = clock_cycles; dfi->last_event_count = count; From patchwork Fri Jun 16 06:20:51 2023 Content-Type: text/plain; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FV8-7W; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 16/26] PM / devfreq: rockchip-dfi: Add perf support Date: Fri, 16 Jun 2023 08:20:51 +0200 Message-Id: <20230616062101.601837-17-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072155_658199_B283A9FE X-CRM114-Status: GOOD ( 31.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The DFI is a unit which is suitable for measuring DDR utilization, but so far it could only be used as an event driver for the DDR frequency scaling driver. This adds perf support to the DFI driver. Usage with the 'perf' tool can look like: perf stat -a -e rockchip_ddr/cycles/,\ rockchip_ddr/read-bytes/,\ rockchip_ddr/write-bytes/,\ rockchip_ddr/bytes/ sleep 1 Performance counter stats for 'system wide': 1582524826 rockchip_ddr/cycles/ 1802.25 MB rockchip_ddr/read-bytes/ 1793.72 MB rockchip_ddr/write-bytes/ 3595.90 MB rockchip_ddr/bytes/ 1.014369709 seconds time elapsed perf support has been tested on a RK3568 and a RK3399, the latter with dual channel DDR. Link: https://lore.kernel.org/r/20230524083153.2046084-17-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer Reviewed-by: Sebastian Reichel --- Notes: Changes since v5: - Add missing initialization of &dfi->last_perf_count Changes since v4: - use __stringify to ensure event type definitions and event numbers in sysfs are consistent - only use 64bit values in structs holding counters - support monitoring individual DDR channels - fix return value in rockchip_ddr_perf_event_init(): -EOPNOTSUPP -> -EINVAL - check for invalid event->attr.config values - start hrtimer to trigger in one second, not immediately - use devm_add_action_or_reset() - add suppress_bind_attrs - enable DDRMON during probe when perf is enabled - use a seqlock to protect perf reading the counters from the hrtimer callback modifying them drivers/devfreq/event/rockchip-dfi.c | 442 ++++++++++++++++++++++++++- include/soc/rockchip/rk3399_grf.h | 2 + include/soc/rockchip/rk3568_grf.h | 1 + 3 files changed, 440 insertions(+), 5 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 50e497455dc69..969b62f071b83 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -16,10 +16,12 @@ #include #include #include +#include #include #include #include #include +#include #include #include @@ -41,19 +43,39 @@ DDRMON_CTRL_LPDDR4 | \ DDRMON_CTRL_LPDDR23) +#define DDRMON_CH0_WR_NUM 0x20 +#define DDRMON_CH0_RD_NUM 0x24 #define DDRMON_CH0_COUNT_NUM 0x28 #define DDRMON_CH0_DFI_ACCESS_NUM 0x2c #define DDRMON_CH1_COUNT_NUM 0x3c #define DDRMON_CH1_DFI_ACCESS_NUM 0x40 +#define PERF_EVENT_CYCLES 0x0 +#define PERF_EVENT_READ_BYTES 0x1 +#define PERF_EVENT_WRITE_BYTES 0x2 +#define PERF_EVENT_READ_BYTES0 0x3 +#define PERF_EVENT_WRITE_BYTES0 0x4 +#define PERF_EVENT_READ_BYTES1 0x5 +#define PERF_EVENT_WRITE_BYTES1 0x6 +#define PERF_EVENT_READ_BYTES2 0x7 +#define PERF_EVENT_WRITE_BYTES2 0x8 +#define PERF_EVENT_READ_BYTES3 0x9 +#define PERF_EVENT_WRITE_BYTES3 0xa +#define PERF_EVENT_BYTES 0xb +#define PERF_ACCESS_TYPE_MAX 0xc + /** * struct dmc_count_channel - structure to hold counter values from the DDR controller * @access: Number of read and write accesses * @clock_cycles: DDR clock cycles + * @read_access: number of read accesses + * @write_acccess: number of write accesses */ struct dmc_count_channel { - u32 access; - u32 clock_cycles; + u64 access; + u64 clock_cycles; + u64 read_access; + u64 write_access; }; struct dmc_count { @@ -69,6 +91,11 @@ struct rockchip_dfi { struct devfreq_event_dev *edev; struct devfreq_event_desc desc; struct dmc_count last_event_count; + + struct dmc_count last_perf_count; + struct dmc_count total_count; + seqlock_t count_seqlock; /* protects last_perf_count and total_count */ + struct device *dev; void __iomem *regs; struct regmap *regmap_pmu; @@ -77,6 +104,14 @@ struct rockchip_dfi { struct mutex mutex; u32 ddr_type; unsigned int channel_mask; + enum cpuhp_state cpuhp_state; + struct hlist_node node; + struct pmu pmu; + struct hrtimer timer; + unsigned int cpu; + int active_events; + int burst_len; + int buswidth[DMC_MAX_CHANNELS]; }; static int rockchip_dfi_enable(struct rockchip_dfi *dfi) @@ -145,7 +180,7 @@ static void rockchip_dfi_disable(struct rockchip_dfi *dfi) mutex_unlock(&dfi->mutex); } -static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *count) +static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_count *c) { u32 i; void __iomem *dfi_regs = dfi->regs; @@ -153,13 +188,36 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun for (i = 0; i < DMC_MAX_CHANNELS; i++) { if (!(dfi->channel_mask & BIT(i))) continue; - count->c[i].access = readl_relaxed(dfi_regs + + c->c[i].read_access = readl_relaxed(dfi_regs + + DDRMON_CH0_RD_NUM + i * 20); + c->c[i].write_access = readl_relaxed(dfi_regs + + DDRMON_CH0_WR_NUM + i * 20); + c->c[i].access = readl_relaxed(dfi_regs + DDRMON_CH0_DFI_ACCESS_NUM + i * 20); - count->c[i].clock_cycles = readl_relaxed(dfi_regs + + c->c[i].clock_cycles = readl_relaxed(dfi_regs + DDRMON_CH0_COUNT_NUM + i * 20); } } +static void rockchip_ddr_perf_counters_add(struct rockchip_dfi *dfi, + const struct dmc_count *now, + struct dmc_count *res) +{ + const struct dmc_count *last = &dfi->last_perf_count; + int i; + + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + res->c[i].read_access = dfi->total_count.c[i].read_access + + (u32)(now->c[i].read_access - last->c[i].read_access); + res->c[i].write_access = dfi->total_count.c[i].write_access + + (u32)(now->c[i].write_access - last->c[i].write_access); + res->c[i].access = dfi->total_count.c[i].access + + (u32)(now->c[i].access - last->c[i].access); + res->c[i].clock_cycles = dfi->total_count.c[i].clock_cycles + + (u32)(now->c[i].clock_cycles - last->c[i].clock_cycles); + } +} + static int rockchip_dfi_event_disable(struct devfreq_event_dev *edev) { struct rockchip_dfi *dfi = devfreq_event_get_drvdata(edev); @@ -223,6 +281,370 @@ static const struct devfreq_event_ops rockchip_dfi_ops = { .set_event = rockchip_dfi_set_event, }; +#ifdef CONFIG_PERF_EVENTS + +static ssize_t ddr_perf_cpumask_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct pmu *pmu = dev_get_drvdata(dev); + struct rockchip_dfi *dfi = container_of(pmu, struct rockchip_dfi, pmu); + + return cpumap_print_to_pagebuf(true, buf, cpumask_of(dfi->cpu)); +} + +static struct device_attribute ddr_perf_cpumask_attr = + __ATTR(cpumask, 0444, ddr_perf_cpumask_show, NULL); + +static struct attribute *ddr_perf_cpumask_attrs[] = { + &ddr_perf_cpumask_attr.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_cpumask_attr_group = { + .attrs = ddr_perf_cpumask_attrs, +}; + +PMU_EVENT_ATTR_STRING(cycles, ddr_pmu_cycles, "event="__stringify(PERF_EVENT_CYCLES)) + +#define DFI_PMU_EVENT_ATTR(_name, _var, _str) \ + PMU_EVENT_ATTR_STRING(_name, _var, _str); \ + PMU_EVENT_ATTR_STRING(_name.unit, _var##_unit, "MB"); \ + PMU_EVENT_ATTR_STRING(_name.scale, _var##_scale, "9.536743164e-07") + +DFI_PMU_EVENT_ATTR(read-bytes0, ddr_pmu_read_bytes0, "event="__stringify(PERF_EVENT_READ_BYTES0)); +DFI_PMU_EVENT_ATTR(write-bytes0, ddr_pmu_write_bytes0, "event="__stringify(PERF_EVENT_WRITE_BYTES0)); + +DFI_PMU_EVENT_ATTR(read-bytes1, ddr_pmu_read_bytes1, "event="__stringify(PERF_EVENT_READ_BYTES1)); +DFI_PMU_EVENT_ATTR(write-bytes1, ddr_pmu_write_bytes1, "event="__stringify(PERF_EVENT_WRITE_BYTES1)); + +DFI_PMU_EVENT_ATTR(read-bytes2, ddr_pmu_read_bytes2, "event="__stringify(PERF_EVENT_READ_BYTES2)); +DFI_PMU_EVENT_ATTR(write-bytes2, ddr_pmu_write_bytes2, "event="__stringify(PERF_EVENT_WRITE_BYTES2)); + +DFI_PMU_EVENT_ATTR(read-bytes3, ddr_pmu_read_bytes3, "event="__stringify(PERF_EVENT_READ_BYTES3)); +DFI_PMU_EVENT_ATTR(write-bytes3, ddr_pmu_write_bytes3, "event="__stringify(PERF_EVENT_WRITE_BYTES3)); + +DFI_PMU_EVENT_ATTR(read-bytes, ddr_pmu_read_bytes, "event="__stringify(PERF_EVENT_READ_BYTES)); +DFI_PMU_EVENT_ATTR(write-bytes, ddr_pmu_write_bytes, "event="__stringify(PERF_EVENT_WRITE_BYTES)); + +DFI_PMU_EVENT_ATTR(bytes, ddr_pmu_bytes, "event="__stringify(PERF_EVENT_BYTES)); + +#define DFI_ATTR_MB(_name) \ + &_name.attr.attr, \ + &_name##_unit.attr.attr, \ + &_name##_scale.attr.attr + +static struct attribute *ddr_perf_events_attrs[] = { + &ddr_pmu_cycles.attr.attr, + DFI_ATTR_MB(ddr_pmu_read_bytes), + DFI_ATTR_MB(ddr_pmu_write_bytes), + DFI_ATTR_MB(ddr_pmu_read_bytes0), + DFI_ATTR_MB(ddr_pmu_write_bytes0), + DFI_ATTR_MB(ddr_pmu_read_bytes1), + DFI_ATTR_MB(ddr_pmu_write_bytes1), + DFI_ATTR_MB(ddr_pmu_read_bytes2), + DFI_ATTR_MB(ddr_pmu_write_bytes2), + DFI_ATTR_MB(ddr_pmu_read_bytes3), + DFI_ATTR_MB(ddr_pmu_write_bytes3), + DFI_ATTR_MB(ddr_pmu_bytes), + NULL, +}; + +static const struct attribute_group ddr_perf_events_attr_group = { + .name = "events", + .attrs = ddr_perf_events_attrs, +}; + +PMU_FORMAT_ATTR(event, "config:0-7"); + +static struct attribute *ddr_perf_format_attrs[] = { + &format_attr_event.attr, + NULL, +}; + +static const struct attribute_group ddr_perf_format_attr_group = { + .name = "format", + .attrs = ddr_perf_format_attrs, +}; + +static const struct attribute_group *attr_groups[] = { + &ddr_perf_events_attr_group, + &ddr_perf_cpumask_attr_group, + &ddr_perf_format_attr_group, + NULL, +}; + +static int rockchip_ddr_perf_event_init(struct perf_event *event) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + if (event->attr.type != event->pmu->type) + return -ENOENT; + + if (event->attach_state & PERF_ATTACH_TASK) + return -EINVAL; + + if (event->cpu < 0) { + dev_warn(dfi->dev, "Can't provide per-task data!\n"); + return -EINVAL; + } + + return 0; +} + +static u64 rockchip_ddr_perf_event_get_count(struct perf_event *event) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + int blen = dfi->burst_len; + struct dmc_count total, now; + unsigned int seq; + u64 c = 0; + int i; + + rockchip_dfi_read_counters(dfi, &now); + + do { + seq = read_seqbegin(&dfi->count_seqlock); + + rockchip_ddr_perf_counters_add(dfi, &now, &total); + + } while (read_seqretry(&dfi->count_seqlock, seq)); + + switch (event->attr.config) { + case PERF_EVENT_CYCLES: + c = total.c[0].clock_cycles; + break; + case PERF_EVENT_READ_BYTES: + for (i = 0; i < DMC_MAX_CHANNELS; i++) + c += total.c[i].read_access * blen * dfi->buswidth[i]; + break; + case PERF_EVENT_WRITE_BYTES: + for (i = 0; i < DMC_MAX_CHANNELS; i++) + c += total.c[i].write_access * blen * dfi->buswidth[i]; + break; + case PERF_EVENT_READ_BYTES0: + c = total.c[0].read_access * blen * dfi->buswidth[0]; + break; + case PERF_EVENT_WRITE_BYTES0: + c = total.c[0].write_access * blen * dfi->buswidth[0]; + break; + case PERF_EVENT_READ_BYTES1: + c = total.c[1].read_access * blen * dfi->buswidth[1]; + break; + case PERF_EVENT_WRITE_BYTES1: + c = total.c[1].write_access * blen * dfi->buswidth[1]; + break; + case PERF_EVENT_READ_BYTES2: + c = total.c[2].read_access * blen * dfi->buswidth[2]; + break; + case PERF_EVENT_WRITE_BYTES2: + c = total.c[2].write_access * blen * dfi->buswidth[2]; + break; + case PERF_EVENT_READ_BYTES3: + c = total.c[3].read_access * blen * dfi->buswidth[3]; + break; + case PERF_EVENT_WRITE_BYTES3: + c = total.c[3].write_access * blen * dfi->buswidth[3]; + break; + case PERF_EVENT_BYTES: + for (i = 0; i < DMC_MAX_CHANNELS; i++) + c += total.c[i].access * blen * dfi->buswidth[i]; + break; + } + + return c; +} + +static void rockchip_ddr_perf_event_update(struct perf_event *event) +{ + u64 now; + s64 prev; + + if (event->attr.config >= PERF_ACCESS_TYPE_MAX) + return; + + now = rockchip_ddr_perf_event_get_count(event); + prev = local64_xchg(&event->hw.prev_count, now); + local64_add(now - prev, &event->count); +} + +static void rockchip_ddr_perf_event_start(struct perf_event *event, int flags) +{ + u64 now = rockchip_ddr_perf_event_get_count(event); + + local64_set(&event->hw.prev_count, now); +} + +static int rockchip_ddr_perf_event_add(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + dfi->active_events++; + + if (dfi->active_events == 1) { + dfi->total_count = (struct dmc_count){}; + rockchip_dfi_read_counters(dfi, &dfi->last_perf_count); + hrtimer_start(&dfi->timer, ns_to_ktime(NSEC_PER_SEC), HRTIMER_MODE_REL); + } + + if (flags & PERF_EF_START) + rockchip_ddr_perf_event_start(event, flags); + + return 0; +} + +static void rockchip_ddr_perf_event_stop(struct perf_event *event, int flags) +{ + rockchip_ddr_perf_event_update(event); +} + +static void rockchip_ddr_perf_event_del(struct perf_event *event, int flags) +{ + struct rockchip_dfi *dfi = container_of(event->pmu, struct rockchip_dfi, pmu); + + rockchip_ddr_perf_event_stop(event, PERF_EF_UPDATE); + + dfi->active_events--; + + if (dfi->active_events == 0) + hrtimer_cancel(&dfi->timer); +} + +static enum hrtimer_restart rockchip_dfi_timer(struct hrtimer *timer) +{ + struct rockchip_dfi *dfi = container_of(timer, struct rockchip_dfi, timer); + struct dmc_count now, total; + + rockchip_dfi_read_counters(dfi, &now); + + write_seqlock(&dfi->count_seqlock); + + rockchip_ddr_perf_counters_add(dfi, &now, &total); + dfi->total_count = total; + dfi->last_perf_count = now; + + write_sequnlock(&dfi->count_seqlock); + + hrtimer_forward_now(&dfi->timer, ns_to_ktime(NSEC_PER_SEC)); + + return HRTIMER_RESTART; +}; + +static int ddr_perf_offline_cpu(unsigned int cpu, struct hlist_node *node) +{ + struct rockchip_dfi *dfi = hlist_entry_safe(node, struct rockchip_dfi, node); + int target; + + if (cpu != dfi->cpu) + return 0; + + target = cpumask_any_but(cpu_online_mask, cpu); + if (target >= nr_cpu_ids) + return 0; + + perf_pmu_migrate_context(&dfi->pmu, cpu, target); + dfi->cpu = target; + + return 0; +} + +static void rockchip_ddr_cpuhp_remove_state(void *data) +{ + struct rockchip_dfi *dfi = data; + + cpuhp_remove_multi_state(dfi->cpuhp_state); + + rockchip_dfi_disable(dfi); +} + +static void rockchip_ddr_cpuhp_remove_instance(void *data) +{ + struct rockchip_dfi *dfi = data; + + cpuhp_state_remove_instance_nocalls(dfi->cpuhp_state, &dfi->node); +} + +static void rockchip_ddr_perf_remove(void *data) +{ + struct rockchip_dfi *dfi = data; + + perf_pmu_unregister(&dfi->pmu); +} + +static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi) +{ + struct pmu *pmu = &dfi->pmu; + int ret; + + seqlock_init(&dfi->count_seqlock); + + pmu->module = THIS_MODULE; + pmu->capabilities = PERF_PMU_CAP_NO_EXCLUDE; + pmu->task_ctx_nr = perf_invalid_context; + pmu->attr_groups = attr_groups; + pmu->event_init = rockchip_ddr_perf_event_init; + pmu->add = rockchip_ddr_perf_event_add; + pmu->del = rockchip_ddr_perf_event_del; + pmu->start = rockchip_ddr_perf_event_start; + pmu->stop = rockchip_ddr_perf_event_stop; + pmu->read = rockchip_ddr_perf_event_update; + + dfi->cpu = raw_smp_processor_id(); + + ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN, + "rockchip_ddr_perf_pmu", + NULL, + ddr_perf_offline_cpu); + + if (ret < 0) { + dev_err(dfi->dev, "cpuhp_setup_state_multi failed: %d\n", ret); + return ret; + } + + dfi->cpuhp_state = ret; + + rockchip_dfi_enable(dfi); + + ret = devm_add_action_or_reset(dfi->dev, rockchip_ddr_cpuhp_remove_state, dfi); + if (ret) + return ret; + + ret = cpuhp_state_add_instance_nocalls(dfi->cpuhp_state, &dfi->node); + if (ret) { + dev_err(dfi->dev, "Error %d registering hotplug\n", ret); + return ret; + } + + ret = devm_add_action_or_reset(dfi->dev, rockchip_ddr_cpuhp_remove_instance, dfi); + if (ret) + return ret; + + hrtimer_init(&dfi->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL); + dfi->timer.function = rockchip_dfi_timer; + + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: + dfi->burst_len = 8; + break; + case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: + dfi->burst_len = 16; + break; + } + + ret = perf_pmu_register(pmu, "rockchip_ddr", -1); + if (ret) + return ret; + + return devm_add_action_or_reset(dfi->dev, rockchip_ddr_perf_remove, dfi); +} +#else +static int rockchip_ddr_perf_init(struct rockchip_dfi *dfi) +{ + return 0; +} +#endif + static int rk3399_dfi_init(struct rockchip_dfi *dfi) { struct regmap *regmap_pmu = dfi->regmap_pmu; @@ -239,6 +661,9 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->channel_mask = GENMASK(1, 0); + dfi->buswidth[0] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH0, val) == 0 ? 4 : 2; + dfi->buswidth[1] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH1, val) == 0 ? 4 : 2; + return 0; }; @@ -255,6 +680,8 @@ static int rk3568_dfi_init(struct rockchip_dfi *dfi) if (FIELD_GET(RK3568_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) dfi->ddr_type |= FIELD_GET(RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + dfi->buswidth[0] = FIELD_GET(RK3568_PMUGRF_OS_REG2_BW_CH0, reg2) == 0 ? 4 : 2; + dfi->channel_mask = 1; return 0; @@ -317,6 +744,10 @@ static int rockchip_dfi_probe(struct platform_device *pdev) return PTR_ERR(dfi->edev); } + ret = rockchip_ddr_perf_init(dfi); + if (ret) + return ret; + platform_set_drvdata(pdev, dfi); return 0; @@ -327,6 +758,7 @@ static struct platform_driver rockchip_dfi_driver = { .driver = { .name = "rockchip-dfi", .of_match_table = rockchip_dfi_id_match, + .suppress_bind_attrs = true, }, }; module_platform_driver(rockchip_dfi_driver); diff --git a/include/soc/rockchip/rk3399_grf.h b/include/soc/rockchip/rk3399_grf.h index 775f8444bea8d..39cd44cec982f 100644 --- a/include/soc/rockchip/rk3399_grf.h +++ b/include/soc/rockchip/rk3399_grf.h @@ -12,5 +12,7 @@ /* PMU GRF Registers */ #define RK3399_PMUGRF_OS_REG2 0x308 #define RK3399_PMUGRF_OS_REG2_DDRTYPE GENMASK(15, 13) +#define RK3399_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) +#define RK3399_PMUGRF_OS_REG2_BW_CH1 GENMASK(19, 18) #endif diff --git a/include/soc/rockchip/rk3568_grf.h b/include/soc/rockchip/rk3568_grf.h index 575584e9d8834..52853efd6720e 100644 --- a/include/soc/rockchip/rk3568_grf.h +++ b/include/soc/rockchip/rk3568_grf.h @@ -4,6 +4,7 @@ #define RK3568_PMUGRF_OS_REG2 0x208 #define RK3568_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) +#define RK3568_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) #define RK3568_PMUGRF_OS_REG3 0x20c #define RK3568_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) From patchwork Fri Jun 16 06:20:52 2023 Content-Type: text/plain; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVD-Ab; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 17/26] PM / devfreq: rockchip-dfi: make register stride SoC specific Date: Fri, 16 Jun 2023 08:20:52 +0200 Message-Id: <20230616062101.601837-18-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072203_293754_B8B2647D X-CRM114-Status: GOOD ( 14.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The currently supported RK3399 has a stride of 20 between the channel specific registers. Upcoming RK3588 has a different stride, so put the stride into driver data to make it configurable. While at it convert decimal 20 to hex 0x14 for consistency with RK3588 which has a register stride 0x4000 and we want to write that in hex as well. Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-18-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 969b62f071b83..85ec93fd41858 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -112,6 +112,7 @@ struct rockchip_dfi { int active_events; int burst_len; int buswidth[DMC_MAX_CHANNELS]; + int ddrmon_stride; }; static int rockchip_dfi_enable(struct rockchip_dfi *dfi) @@ -189,13 +190,13 @@ static void rockchip_dfi_read_counters(struct rockchip_dfi *dfi, struct dmc_coun if (!(dfi->channel_mask & BIT(i))) continue; c->c[i].read_access = readl_relaxed(dfi_regs + - DDRMON_CH0_RD_NUM + i * 20); + DDRMON_CH0_RD_NUM + i * dfi->ddrmon_stride); c->c[i].write_access = readl_relaxed(dfi_regs + - DDRMON_CH0_WR_NUM + i * 20); + DDRMON_CH0_WR_NUM + i * dfi->ddrmon_stride); c->c[i].access = readl_relaxed(dfi_regs + - DDRMON_CH0_DFI_ACCESS_NUM + i * 20); + DDRMON_CH0_DFI_ACCESS_NUM + i * dfi->ddrmon_stride); c->c[i].clock_cycles = readl_relaxed(dfi_regs + - DDRMON_CH0_COUNT_NUM + i * 20); + DDRMON_CH0_COUNT_NUM + i * dfi->ddrmon_stride); } } @@ -664,6 +665,8 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->buswidth[0] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH0, val) == 0 ? 4 : 2; dfi->buswidth[1] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH1, val) == 0 ? 4 : 2; + dfi->ddrmon_stride = 0x14; + return 0; }; From patchwork Fri Jun 16 06:20:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282057 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 236E2EB64DB for ; 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Fri, 16 Jun 2023 06:22:03 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2qA-0006tr-Gx; Fri, 16 Jun 2023 08:21:46 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q9-007kyx-OF; Fri, 16 Jun 2023 08:21:45 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVH-CR; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 18/26] PM / devfreq: rockchip-dfi: account for multiple DDRMON_CTRL registers Date: Fri, 16 Jun 2023 08:20:53 +0200 Message-Id: <20230616062101.601837-19-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072151_238719_6E4A4540 X-CRM114-Status: GOOD ( 20.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The currently supported RK3399 has a set of registers per channel, but it has only a single DDRMON_CTRL register. With upcoming RK3588 this will be different, the RK3588 has a DDRMON_CTRL register per channel. Instead of expecting a single DDRMON_CTRL register, loop over the channels and write the channel specific DDRMON_CTRL register. Break out early out of the loop when there is only a single DDRMON_CTRL register like on the RK3399. Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-19-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 72 ++++++++++++++++++---------- 1 file changed, 48 insertions(+), 24 deletions(-) diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 85ec93fd41858..2362d3953ba40 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -113,12 +113,13 @@ struct rockchip_dfi { int burst_len; int buswidth[DMC_MAX_CHANNELS]; int ddrmon_stride; + bool ddrmon_ctrl_single; }; static int rockchip_dfi_enable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; - int ret = 0; + int i, ret = 0; mutex_lock(&dfi->mutex); @@ -132,29 +133,41 @@ static int rockchip_dfi_enable(struct rockchip_dfi *dfi) goto out; } - /* clear DDRMON_CTRL setting */ - writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_TIMER_CNT_EN | DDRMON_CTRL_SOFTWARE_EN | - DDRMON_CTRL_HARDWARE_EN), dfi_regs + DDRMON_CTRL); + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + u32 ctrl = 0; - /* set ddr type to dfi */ - switch (dfi->ddr_type) { - case ROCKCHIP_DDRTYPE_LPDDR2: - case ROCKCHIP_DDRTYPE_LPDDR3: - writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR23, DDRMON_CTRL_DDR_TYPE_MASK), - dfi_regs + DDRMON_CTRL); - break; - case ROCKCHIP_DDRTYPE_LPDDR4: - case ROCKCHIP_DDRTYPE_LPDDR4X: - writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_LPDDR4, DDRMON_CTRL_DDR_TYPE_MASK), - dfi_regs + DDRMON_CTRL); - break; - default: - break; - } + if (!(dfi->channel_mask & BIT(i))) + continue; - /* enable count, use software mode */ - writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), - dfi_regs + DDRMON_CTRL); + /* clear DDRMON_CTRL setting */ + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_TIMER_CNT_EN | + DDRMON_CTRL_SOFTWARE_EN | DDRMON_CTRL_HARDWARE_EN), + dfi_regs + i * dfi->ddrmon_stride + DDRMON_CTRL); + + /* set ddr type to dfi */ + switch (dfi->ddr_type) { + case ROCKCHIP_DDRTYPE_LPDDR2: + case ROCKCHIP_DDRTYPE_LPDDR3: + ctrl = DDRMON_CTRL_LPDDR23; + break; + case ROCKCHIP_DDRTYPE_LPDDR4: + case ROCKCHIP_DDRTYPE_LPDDR4X: + ctrl = DDRMON_CTRL_LPDDR4; + break; + default: + break; + } + + writel_relaxed(HIWORD_UPDATE(ctrl, DDRMON_CTRL_DDR_TYPE_MASK), + dfi_regs + i * dfi->ddrmon_stride + DDRMON_CTRL); + + /* enable count, use software mode */ + writel_relaxed(HIWORD_UPDATE(DDRMON_CTRL_SOFTWARE_EN, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + i * dfi->ddrmon_stride + DDRMON_CTRL); + + if (dfi->ddrmon_ctrl_single) + break; + } out: mutex_unlock(&dfi->mutex); @@ -164,6 +177,7 @@ static int rockchip_dfi_enable(struct rockchip_dfi *dfi) static void rockchip_dfi_disable(struct rockchip_dfi *dfi) { void __iomem *dfi_regs = dfi->regs; + int i; mutex_lock(&dfi->mutex); @@ -174,8 +188,17 @@ static void rockchip_dfi_disable(struct rockchip_dfi *dfi) if (dfi->usecount > 0) goto out; - writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), - dfi_regs + DDRMON_CTRL); + for (i = 0; i < DMC_MAX_CHANNELS; i++) { + if (!(dfi->channel_mask & BIT(i))) + continue; + + writel_relaxed(HIWORD_UPDATE(0, DDRMON_CTRL_SOFTWARE_EN), + dfi_regs + i * dfi->ddrmon_stride + DDRMON_CTRL); + + if (dfi->ddrmon_ctrl_single) + break; + } + clk_disable_unprepare(dfi->clk); out: mutex_unlock(&dfi->mutex); @@ -666,6 +689,7 @@ static int rk3399_dfi_init(struct rockchip_dfi *dfi) dfi->buswidth[1] = FIELD_GET(RK3399_PMUGRF_OS_REG2_BW_CH1, val) == 0 ? 4 : 2; dfi->ddrmon_stride = 0x14; + dfi->ddrmon_ctrl_single = true; return 0; }; From patchwork Fri Jun 16 06:20:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282066 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 36C25EB64D8 for ; Fri, 16 Jun 2023 06:25:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9kUoJlRA04OP3YTgmqa8D6YAbDSTxNhibBARaw48C2Y=; b=bq3InWBeGI9dtm j8tgXIUE/qiSBaiXtxnyxRmFcrmnzAfOGhhNam7Sk4NUASCNvm0ilkBw55PeyfOAlIeHKMrWnnyy0 NbuQ/Gwr/tuNr1ytRjnsICJxhWaq3e1dsEj10D6GHBC2V6nBaPy7+c8WuLRHgeEdWJWcglExfQTEy XryCTaBC+/OL3Xak8iKkfbkeJQhefbYFEgegaJHB2F8S4qwYLIQ7qeMDdha5nWciuSGZS4T9Zw5kf of5fAKylO8lfVJY/OtpRihpdUO8UVWvw+lDv5RbqKFrqEZqh0J+lP3VneVX616ZPxQZyG+UHTA+go Sr64wwYylhhmGDPJ4n4Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qA2sy-00H1jH-1t; Fri, 16 Jun 2023 06:24:40 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qA2sA-00H1Cf-2S for linux-arm-kernel@bombadil.infradead.org; Fri, 16 Jun 2023 06:23:50 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=Qy0Av0UZnnDsO3MQJwBrJdNNwstjVnmapqJauYVaNEA=; b=kBffjmoh+czWEqBftwuidMu+G5 BmY8728HzzxVIXs6EcJrqIeBe2dSAJB0Q26ZIxm+KHbnaPagNYIVfD+hDpoKsCyp+LsMrpSZRPFdV YHpysz1KqpKaiHYf2+DgYD7znlG8G4ElyBj8zZHxGCrPg4yT/12zFlu6mf5sPqCw6vu/WVZ1snLlW E6QvLpJ+kSZ+OX1tMB8xy+QDNqkJLwpoZ0ZydPjXP//wqGCvbCQRaV8E9oY5kstQLjESp0mXUXbTz O8wU/AWxmRU2XRJlQNPVBiaVYOdHLBX7SEcs0ZKQ/MzmIB8QpacK3cgIOBoJI4HDHdu6kty9PiloE bQ6yJVYQ==; Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by desiato.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qA2qM-00Corj-2I for linux-arm-kernel@lists.infradead.org; Fri, 16 Jun 2023 06:23:49 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2q8-0006pP-W3; Fri, 16 Jun 2023 08:21:45 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q8-007kxw-5Y; Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVM-Dv; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Jonathan Cameron Subject: [PATCH v6 19/26] PM / devfreq: rockchip-dfi: add support for RK3588 Date: Fri, 16 Jun 2023 08:20:54 +0200 Message-Id: <20230616062101.601837-20-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072202_715975_0782FE7F X-CRM114-Status: GOOD ( 18.57 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add support for the RK3588 to the driver. The RK3588 has four DDR channels with a register stride of 0x4000 between the channel registers, also it has a DDRMON_CTRL register per channel. Reviewed-by: Jonathan Cameron Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-20-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- drivers/devfreq/event/rockchip-dfi.c | 30 +++++++++++++++++++++++++++- include/soc/rockchip/rk3588_grf.h | 18 +++++++++++++++++ 2 files changed, 47 insertions(+), 1 deletion(-) create mode 100644 include/soc/rockchip/rk3588_grf.h diff --git a/drivers/devfreq/event/rockchip-dfi.c b/drivers/devfreq/event/rockchip-dfi.c index 2362d3953ba40..9854d4093e186 100644 --- a/drivers/devfreq/event/rockchip-dfi.c +++ b/drivers/devfreq/event/rockchip-dfi.c @@ -26,8 +26,9 @@ #include #include #include +#include -#define DMC_MAX_CHANNELS 2 +#define DMC_MAX_CHANNELS 4 #define HIWORD_UPDATE(val, mask) ((val) | (mask) << 16) @@ -714,9 +715,36 @@ static int rk3568_dfi_init(struct rockchip_dfi *dfi) return 0; }; +static int rk3588_dfi_init(struct rockchip_dfi *dfi) +{ + struct regmap *regmap_pmu = dfi->regmap_pmu; + u32 reg2, reg3, reg4; + + regmap_read(regmap_pmu, RK3588_PMUGRF_OS_REG2, ®2); + regmap_read(regmap_pmu, RK3588_PMUGRF_OS_REG3, ®3); + regmap_read(regmap_pmu, RK3588_PMUGRF_OS_REG4, ®4); + + dfi->ddr_type = FIELD_GET(RK3588_PMUGRF_OS_REG2_DRAMTYPE_INFO, reg2); + + if (FIELD_GET(RK3588_PMUGRF_OS_REG3_SYSREG_VERSION, reg3) >= 0x3) + dfi->ddr_type |= FIELD_GET(RK3588_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3, reg3) << 3; + + dfi->buswidth[0] = FIELD_GET(RK3588_PMUGRF_OS_REG2_BW_CH0, reg2) == 0 ? 4 : 2; + dfi->buswidth[1] = FIELD_GET(RK3588_PMUGRF_OS_REG2_BW_CH1, reg2) == 0 ? 4 : 2; + dfi->buswidth[2] = FIELD_GET(RK3568_PMUGRF_OS_REG2_BW_CH0, reg4) == 0 ? 4 : 2; + dfi->buswidth[3] = FIELD_GET(RK3588_PMUGRF_OS_REG2_BW_CH1, reg4) == 0 ? 4 : 2; + dfi->channel_mask = FIELD_GET(RK3588_PMUGRF_OS_REG2_CH_INFO, reg2) | + FIELD_GET(RK3588_PMUGRF_OS_REG2_CH_INFO, reg4) << 2; + + dfi->ddrmon_stride = 0x4000; + + return 0; +}; + static const struct of_device_id rockchip_dfi_id_match[] = { { .compatible = "rockchip,rk3399-dfi", .data = rk3399_dfi_init }, { .compatible = "rockchip,rk3568-dfi", .data = rk3568_dfi_init }, + { .compatible = "rockchip,rk3588-dfi", .data = rk3588_dfi_init }, { }, }; diff --git a/include/soc/rockchip/rk3588_grf.h b/include/soc/rockchip/rk3588_grf.h new file mode 100644 index 0000000000000..630b35a550640 --- /dev/null +++ b/include/soc/rockchip/rk3588_grf.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +#ifndef __SOC_RK3588_GRF_H +#define __SOC_RK3588_GRF_H + +#define RK3588_PMUGRF_OS_REG2 0x208 +#define RK3588_PMUGRF_OS_REG2_DRAMTYPE_INFO GENMASK(15, 13) +#define RK3588_PMUGRF_OS_REG2_BW_CH0 GENMASK(3, 2) +#define RK3588_PMUGRF_OS_REG2_BW_CH1 GENMASK(19, 18) +#define RK3588_PMUGRF_OS_REG2_CH_INFO GENMASK(29, 28) + +#define RK3588_PMUGRF_OS_REG3 0x20c +#define RK3588_PMUGRF_OS_REG3_DRAMTYPE_INFO_V3 GENMASK(13, 12) +#define RK3588_PMUGRF_OS_REG3_SYSREG_VERSION GENMASK(31, 28) + +#define RK3588_PMUGRF_OS_REG4 0x210 +#define RK3588_PMUGRF_OS_REG5 0x214 + +#endif /* __SOC_RK3588_GRF_H */ From patchwork Fri Jun 16 06:20:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282053 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 21D0CEB64D8 for ; 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Fri, 16 Jun 2023 06:22:02 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2qA-0006tq-EM; Fri, 16 Jun 2023 08:21:46 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q9-007kyw-Ms; Fri, 16 Jun 2023 08:21:45 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVQ-Fu; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Rob Herring Subject: [PATCH v6 20/26] dt-bindings: devfreq: event: convert Rockchip DFI binding to yaml Date: Fri, 16 Jun 2023 08:20:55 +0200 Message-Id: <20230616062101.601837-21-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072151_174049_38296078 X-CRM114-Status: GOOD ( 18.33 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Convert the Rockchip DFI binding to yaml. Reviewed-by: Rob Herring Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-21-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- Notes: Changes since v4: - Revert to state of v3 (changes were lost in v4) .../bindings/devfreq/event/rockchip,dfi.yaml | 61 +++++++++++++++++++ .../bindings/devfreq/event/rockchip-dfi.txt | 18 ------ .../rockchip,rk3399-dmc.yaml | 2 +- 3 files changed, 62 insertions(+), 19 deletions(-) create mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml delete mode 100644 Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml new file mode 100644 index 0000000000000..7a82f6ae0701e --- /dev/null +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml @@ -0,0 +1,61 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/devfreq/event/rockchip,dfi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip DFI + +maintainers: + - Sascha Hauer + +properties: + compatible: + enum: + - rockchip,rk3399-dfi + + clocks: + maxItems: 1 + + clock-names: + items: + - const: pclk_ddr_mon + + interrupts: + maxItems: 1 + + reg: + maxItems: 1 + + rockchip,pmu: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the syscon managing the "PMU general register files". + +required: + - compatible + - clocks + - clock-names + - interrupts + - reg + +additionalProperties: false + +examples: + - | + #include + #include + + bus { + #address-cells = <2>; + #size-cells = <2>; + + dfi: dfi@ff630000 { + compatible = "rockchip,rk3399-dfi"; + reg = <0x00 0xff630000 0x00 0x4000>; + interrupts = ; + rockchip,pmu = <&pmugrf>; + clocks = <&cru PCLK_DDR_MON>; + clock-names = "pclk_ddr_mon"; + }; + }; diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt b/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt deleted file mode 100644 index 148191b0fc158..0000000000000 --- a/Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt +++ /dev/null @@ -1,18 +0,0 @@ - -* Rockchip rk3399 DFI device - -Required properties: -- compatible: Must be "rockchip,rk3399-dfi". -- reg: physical base address of each DFI and length of memory mapped region -- rockchip,pmu: phandle to the syscon managing the "pmu general register files" -- clocks: phandles for clock specified in "clock-names" property -- clock-names : the name of clock used by the DFI, must be "pclk_ddr_mon"; - -Example: - dfi: dfi@ff630000 { - compatible = "rockchip,rk3399-dfi"; - reg = <0x00 0xff630000 0x00 0x4000>; - rockchip,pmu = <&pmugrf>; - clocks = <&cru PCLK_DDR_MON>; - clock-names = "pclk_ddr_mon"; - }; diff --git a/Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml b/Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml index fb4920397d08e..aba8649aaeb10 100644 --- a/Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/rockchip,rk3399-dmc.yaml @@ -18,7 +18,7 @@ properties: $ref: /schemas/types.yaml#/definitions/phandle description: Node to get DDR loading. Refer to - Documentation/devicetree/bindings/devfreq/event/rockchip-dfi.txt. + Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml. clocks: maxItems: 1 From patchwork Fri Jun 16 06:20:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282060 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C3DAFEB64D8 for ; Fri, 16 Jun 2023 06:24:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVW-I5; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer , Conor Dooley Subject: [PATCH v6 21/26] dt-bindings: devfreq: event: rockchip,dfi: Add rk3568 support Date: Fri, 16 Jun 2023 08:20:56 +0200 Message-Id: <20230616062101.601837-22-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072202_039134_DA8AC629 X-CRM114-Status: GOOD ( 12.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This adds the rockchip,rk3568-dfi compatible to the binding. Make clocks optional for this SoC as the RK3568 doesn't have a kernel controllable PCLK. Reviewed-by: Conor Dooley Link: https://lore.kernel.org/r/20230524083153.2046084-22-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- .../bindings/devfreq/event/rockchip,dfi.yaml | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml index 7a82f6ae0701e..e8b64494ee8bd 100644 --- a/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml @@ -13,6 +13,7 @@ properties: compatible: enum: - rockchip,rk3399-dfi + - rockchip,rk3568-dfi clocks: maxItems: 1 @@ -34,11 +35,21 @@ properties: required: - compatible - - clocks - - clock-names - interrupts - reg +if: + properties: + compatible: + contains: + enum: + - rockchip,rk3399-dfi + +then: + required: + - clocks + - clock-names + additionalProperties: false examples: From patchwork Fri Jun 16 06:20:57 2023 Content-Type: text/plain; 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Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVd-JF; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 22/26] dt-bindings: devfreq: event: rockchip,dfi: Add rk3588 support Date: Fri, 16 Jun 2023 08:20:57 +0200 Message-Id: <20230616062101.601837-23-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072154_485456_AD7ACEA7 X-CRM114-Status: GOOD ( 12.75 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org This adds rockchip,rk3588-dfi to the list of compatibles. Unlike ealier SoCs the rk3588 has four interrupts (one for each channel) instead of only one, so increase the number of allowed interrupts to four. Link: https://lore.kernel.org/r/20230524083153.2046084-23-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer Acked-by: Conor Dooley --- Notes: Changes since v4: - new patch Changes since v5: - drop interrupt-names property Changes since v4: - new patch .../devicetree/bindings/devfreq/event/rockchip,dfi.yaml | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml b/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml index e8b64494ee8bd..50d3fabe958d5 100644 --- a/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml +++ b/Documentation/devicetree/bindings/devfreq/event/rockchip,dfi.yaml @@ -14,6 +14,7 @@ properties: enum: - rockchip,rk3399-dfi - rockchip,rk3568-dfi + - rockchip,rk3588-dfi clocks: maxItems: 1 @@ -23,7 +24,8 @@ properties: - const: pclk_ddr_mon interrupts: - maxItems: 1 + minItems: 1 + maxItems: 4 reg: maxItems: 1 From patchwork Fri Jun 16 06:20:58 2023 Content-Type: text/plain; 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Fri, 16 Jun 2023 08:21:45 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVl-KZ; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 23/26] dt-bindings: soc: rockchip: grf: add rockchip,rk3588-pmugrf Date: Fri, 16 Jun 2023 08:20:58 +0200 Message-Id: <20230616062101.601837-24-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072151_430595_18F76253 X-CRM114-Status: GOOD ( 11.89 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add rockchip,rk3588-pmugrf compatible string. Signed-off-by: Sascha Hauer Acked-by: Conor Dooley --- Notes: Changes since v5: - new patch Documentation/devicetree/bindings/soc/rockchip/grf.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml index 65a2d5a4f28d8..12f8fe4435584 100644 --- a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml +++ b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml @@ -52,6 +52,7 @@ properties: - rockchip,rk3399-pmugrf - rockchip,rk3568-grf - rockchip,rk3568-pmugrf + - rockchip,rk3588-pmugrf - rockchip,rv1108-grf - rockchip,rv1108-pmugrf - rockchip,rv1126-grf From patchwork Fri Jun 16 06:20:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282062 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CCEAEEB64DA for ; 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Fri, 16 Jun 2023 06:22:15 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2q9-0006qr-Mz; Fri, 16 Jun 2023 08:21:45 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q8-007kyb-Rx; Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVp-LV; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 24/26] arm64: dts: rockchip: rk3399: Enable DFI Date: Fri, 16 Jun 2023 08:20:59 +0200 Message-Id: <20230616062101.601837-25-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072202_125230_823BC91F X-CRM114-Status: GOOD ( 12.94 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org the DFI unit can provide useful data for measuring DDR utilization and works without any configuration from the board, so enable it in the dtsi file directly. Link: https://lore.kernel.org/r/20230524083153.2046084-24-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- arch/arm64/boot/dts/rockchip/rk3399.dtsi | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index 928948e7c7bbb..fa0a5dbd1b0ec 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -1331,7 +1331,6 @@ dfi: dfi@ff630000 { interrupts = ; clocks = <&cru PCLK_DDR_MON>; clock-names = "pclk_ddr_mon"; - status = "disabled"; }; vpu: video-codec@ff650000 { From patchwork Fri Jun 16 06:21:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282044 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 001D1EB64D8 for ; Fri, 16 Jun 2023 06:22:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=YkcYR6KRd/G+IdrdvyYdYT5bYrTpn4wFV40qXiqSTNQ=; b=uW/roI78O2QUOq 9MYZJb8jtT1hi7NOlDyQUVYorLHAHOfnmP873kzOaEK220vSj6YrtpafEK+dV7VZ/TYjp5HM8HfFd un0ScKsWSyV5+EVaoiVwS7VMSJ7MKN6N/zJYq4pV3DJ1GQ02mmy1lzGj8GYm4zrYGXZbiMn/Jc08k FyqUstPYrG42ZYjhht7SdHM0QU6qHIMlPJ6uoxyKBHkH5gQA0fii6+djCJsLFOGHR44ditFvW+oSn MfAYnZVUiCUeO7fg2I9xcjUYbrHblVjLoAyOtGNHPBdy1cDFyX2Yja7Lag/6W/oeG3is1oFFRbKFk uf+C9vCFJbk2wdPoDSrw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qA2qc-00Gzq4-0k; Fri, 16 Jun 2023 06:22:14 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qA2qG-00GzVD-1F for linux-arm-kernel@lists.infradead.org; Fri, 16 Jun 2023 06:21:59 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2q8-0006ne-Ct; Fri, 16 Jun 2023 08:21:44 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q7-007kxq-FE; Fri, 16 Jun 2023 08:21:43 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FVw-Mc; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 25/26] arm64: dts: rockchip: rk356x: Add DFI Date: Fri, 16 Jun 2023 08:21:00 +0200 Message-Id: <20230616062101.601837-26-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230615_232152_544719_D52E9C19 X-CRM114-Status: GOOD ( 12.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The DFI unit can be used to measure DRAM utilization using perf. Add the node to the device tree. Link: https://lore.kernel.org/r/20230524083153.2046084-25-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- arch/arm64/boot/dts/rockchip/rk356x.dtsi | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi index f62e0fd881a95..910d8a84ea8f2 100644 --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi @@ -948,6 +948,13 @@ qos_vop_m1: qos@fe1a8100 { reg = <0x0 0xfe1a8100 0x0 0x20>; }; + dfi: dfi@fe230000 { + compatible = "rockchip,rk3568-dfi"; + reg = <0x00 0xfe230000 0x00 0x400>; + interrupts = ; + rockchip,pmu = <&pmugrf>; + }; + pcie2x1: pcie@fe260000 { compatible = "rockchip,rk3568-pcie"; reg = <0x3 0xc0000000 0x0 0x00400000>, From patchwork Fri Jun 16 06:21:01 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sascha Hauer X-Patchwork-Id: 13282056 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A211AEB64D8 for ; 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Fri, 16 Jun 2023 06:22:05 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1qA2q9-0006qc-Kq; Fri, 16 Jun 2023 08:21:45 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1qA2q8-007kyZ-Q8; Fri, 16 Jun 2023 08:21:44 +0200 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1qA2q5-003FW2-NS; Fri, 16 Jun 2023 08:21:41 +0200 From: Sascha Hauer To: linux-rockchip@lists.infradead.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Heiko Stuebner , Kyungmin Park , MyungJoo Ham , Will Deacon , Mark Rutland , kernel@pengutronix.de, Michael Riesch , Robin Murphy , Vincent Legoll , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Sebastian Reichel , Sascha Hauer Subject: [PATCH v6 26/26] arm64: dts: rockchip: rk3588s: Add DFI Date: Fri, 16 Jun 2023 08:21:01 +0200 Message-Id: <20230616062101.601837-27-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230616062101.601837-1-s.hauer@pengutronix.de> References: <20230616062101.601837-1-s.hauer@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: sha@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230616_072155_175582_2AF2A4BF X-CRM114-Status: GOOD ( 13.53 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The DFI unit can be used to measure DRAM utilization using perf. Add the node to the device tree. The DFI needs a rockchip,pmu phandle to the pmu containing registers for SDRAM configuration details. This is added in this patch as well. Reviewed-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230524083153.2046084-26-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer --- Notes: Changes since v4: - new patch arch/arm64/boot/dts/rockchip/rk3588s.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi index 657c019d27fa9..4a445d8704c8f 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588s.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3588s.dtsi @@ -388,6 +388,11 @@ scmi_shmem: sram@0 { }; }; + pmu1grf: syscon@fd58a000 { + compatible = "rockchip,rk3588-pmugrf", "syscon", "simple-mfd"; + reg = <0x0 0xfd58a000 0x0 0x10000>; + }; + sys_grf: syscon@fd58c000 { compatible = "rockchip,rk3588-sys-grf", "syscon"; reg = <0x0 0xfd58c000 0x0 0x1000>; @@ -1112,6 +1117,17 @@ qos_vop_m1: qos@fdf82200 { reg = <0x0 0xfdf82200 0x0 0x20>; }; + dfi: dfi@fe060000 { + reg = <0x00 0xfe060000 0x00 0x10000>; + compatible = "rockchip,rk3588-dfi"; + interrupts = , + , + , + ; + interrupt-names = "ch0", "ch1", "ch2", "ch3"; + rockchip,pmu = <&pmu1grf>; + }; + gmac1: ethernet@fe1c0000 { compatible = "rockchip,rk3588-gmac", "snps,dwmac-4.20a"; reg = <0x0 0xfe1c0000 0x0 0x10000>;