From patchwork Sat May 9 09:37:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11538131 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A06C414C0 for ; Sat, 9 May 2020 09:37:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 841DE217BA for ; Sat, 9 May 2020 09:37:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="XWDBzPGF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728255AbgEIJh3 (ORCPT ); Sat, 9 May 2020 05:37:29 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:6471 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728083AbgEIJh0 (ORCPT ); Sat, 9 May 2020 05:37:26 -0400 X-UUID: 4662f4d07bb64bd5beef6bcd7e7fbbde-20200509 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=QgdzxC6jifc5v5xz33NQoqMjvZUvNoNRAMd7vcGrEFo=; b=XWDBzPGF/cKZ2yU9Y9utKXuI7W3qTO3YXhqdsFQXEvKFl94RkqU5wzfcsKeQAhrm3RhJ9fck7DaoKrH/Kr2y4R3TYgYSH93IQlqhhZEIyWy2RPObaI4XwPBb99xcX1WOtgSwtqbhfRtVVezrgXTI+Tj1hTsy3G5bokqB5HCAkSY=; X-UUID: 4662f4d07bb64bd5beef6bcd7e7fbbde-20200509 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1460833602; Sat, 09 May 2020 17:37:19 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n2.mediatek.inc (172.21.101.101) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 9 May 2020 17:37:15 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 9 May 2020 17:37:16 +0800 From: Stanley Chu To: , , , , , CC: , , , , , , , , , , , Stanley Chu Subject: [PATCH v2 1/4] scsi: ufs: introduce ufs_hba_variant_params to collect customizable parameters Date: Sat, 9 May 2020 17:37:13 +0800 Message-ID: <20200509093716.21010-2-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200509093716.21010-1-stanley.chu@mediatek.com> References: <20200509093716.21010-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 3B04A6CD840250C5C51DB8CDC63535667407E28B0E3B84D1DDE349A5BF36E3642000:8 X-MTK: N Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org There are more and more customizable parameters showed up in UFS driver. Let's collect them into a unified place to make the driver more clean. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufshcd.c | 38 +++++++++++++++----------------------- drivers/scsi/ufs/ufshcd.h | 8 +++++++- 2 files changed, 22 insertions(+), 24 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 426073a518ef..cdacbe6378a1 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1353,23 +1353,6 @@ static int ufshcd_devfreq_get_dev_status(struct device *dev, return 0; } -static struct devfreq_dev_profile ufs_devfreq_profile = { - .polling_ms = 100, - .target = ufshcd_devfreq_target, - .get_dev_status = ufshcd_devfreq_get_dev_status, -}; - -#if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND) -static struct devfreq_simple_ondemand_data ufs_ondemand_data = { - .upthreshold = 70, - .downdifferential = 5, -}; - -static void *gov_data = &ufs_ondemand_data; -#else -static void *gov_data; /* NULL */ -#endif - static int ufshcd_devfreq_init(struct ufs_hba *hba) { struct list_head *clk_list = &hba->clk_list_head; @@ -1385,12 +1368,12 @@ static int ufshcd_devfreq_init(struct ufs_hba *hba) dev_pm_opp_add(hba->dev, clki->min_freq, 0); dev_pm_opp_add(hba->dev, clki->max_freq, 0); - ufshcd_vops_config_scaling_param(hba, &ufs_devfreq_profile, - gov_data); + ufshcd_vops_config_scaling_param(hba, &hba->vps->devfreq_profile, + &hba->vps->ondemand_data); devfreq = devfreq_add_device(hba->dev, - &ufs_devfreq_profile, + &hba->vps->devfreq_profile, DEVFREQ_GOV_SIMPLE_ONDEMAND, - gov_data); + &hba->vps->ondemand_data); if (IS_ERR(devfreq)) { ret = PTR_ERR(devfreq); dev_err(hba->dev, "Unable to register with devfreq %d\n", ret); @@ -4314,7 +4297,7 @@ int ufshcd_hba_enable(struct ufs_hba *hba) * instruction might be read back. * This delay can be changed based on the controller. */ - ufshcd_delay_us(hba->hba_enable_delay_us, 100); + ufshcd_delay_us(hba->vps->hba_enable_delay_us, 100); /* wait for the host controller to complete initialization */ retry = 50; @@ -7477,6 +7460,15 @@ static const struct attribute_group *ufshcd_driver_groups[] = { NULL, }; +static struct ufs_hba_variant_params ufs_hba_vps = { + .hba_enable_delay_us = 1000, + .devfreq_profile.polling_ms = 100, + .devfreq_profile.target = ufshcd_devfreq_target, + .devfreq_profile.get_dev_status = ufshcd_devfreq_get_dev_status, + .ondemand_data.upthreshold = 70, + .ondemand_data.downdifferential = 5, +}; + static struct scsi_host_template ufshcd_driver_template = { .module = THIS_MODULE, .name = UFSHCD, @@ -8724,7 +8716,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) hba->mmio_base = mmio_base; hba->irq = irq; - hba->hba_enable_delay_us = 1000; + hba->vps = &ufs_hba_vps; err = ufshcd_hba_init(hba); if (err) diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 23a434c03c2a..f7bdf52ba8b0 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -566,6 +566,12 @@ enum ufshcd_caps { UFSHCD_CAP_WB_EN = 1 << 7, }; +struct ufs_hba_variant_params { + struct devfreq_dev_profile devfreq_profile; + struct devfreq_simple_ondemand_data ondemand_data; + u16 hba_enable_delay_us; +}; + /** * struct ufs_hba - per adapter private structure * @mmio_base: UFSHCI base register address @@ -663,6 +669,7 @@ struct ufs_hba { int nutmrs; u32 ufs_version; const struct ufs_hba_variant_ops *vops; + struct ufs_hba_variant_params *vps; void *priv; unsigned int irq; bool is_irq_enabled; @@ -684,7 +691,6 @@ struct ufs_hba { u32 eh_flags; u32 intr_mask; u16 ee_ctrl_mask; - u16 hba_enable_delay_us; bool is_powered; /* Work Queues */ From patchwork Sat May 9 09:37:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11538127 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9F2B992A for ; Sat, 9 May 2020 09:37:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8676F217BA for ; 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Sat, 09 May 2020 17:37:19 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs02n1.mediatek.inc (172.21.101.77) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 9 May 2020 17:37:16 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 9 May 2020 17:37:16 +0800 From: Stanley Chu To: , , , , , CC: , , , , , , , , , , , Stanley Chu Subject: [PATCH v2 2/4] scsi: ufs-mediatek: change the way to use customizable parameters Date: Sat, 9 May 2020 17:37:14 +0800 Message-ID: <20200509093716.21010-3-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200509093716.21010-1-stanley.chu@mediatek.com> References: <20200509093716.21010-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Now all customizable parameters have been moved to hba->vps, thus modify the way to use them. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufs-mediatek.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index c543142554d3..56620f7d88ce 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -79,9 +79,9 @@ static int ufs_mtk_hce_enable_notify(struct ufs_hba *hba, if (status == PRE_CHANGE) { if (host->unipro_lpm) - hba->hba_enable_delay_us = 0; + hba->vps->hba_enable_delay_us = 0; else - hba->hba_enable_delay_us = 600; + hba->vps->hba_enable_delay_us = 600; } return 0; From patchwork Sat May 9 09:37:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11538129 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4CB9514C0 for ; Sat, 9 May 2020 09:37:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 33B3821974 for ; Sat, 9 May 2020 09:37:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="GSPBgeb/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728198AbgEIJhZ (ORCPT ); Sat, 9 May 2020 05:37:25 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:8597 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1728152AbgEIJhY (ORCPT ); Sat, 9 May 2020 05:37:24 -0400 X-UUID: 6b3e02ffd363465eb15b10662ae32451-20200509 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=9vLJufccMQirOO3fRMdyvDSO0idv15wihf8x27nLpCU=; b=GSPBgeb/Nmk/aAHRVy0tsl+qOYB+p0hcL1/iUW9UnQQR5dUNfoHxC7EAcMic5fvHQlcRxGmR02n7WzLZoVkH5f/eV9CDCvP93PAsuB38joVxrPflMHhFk2JkUUbNvTy9799QyF1iZgs7detWAtnn6+hRcizyRVVkN391VgMVy84=; X-UUID: 6b3e02ffd363465eb15b10662ae32451-20200509 Received: from mtkcas06.mediatek.inc [(172.21.101.30)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 294229266; Sat, 09 May 2020 17:37:22 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n2.mediatek.inc (172.21.101.56) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 9 May 2020 17:37:17 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 9 May 2020 17:37:16 +0800 From: Stanley Chu To: , , , , , CC: , , , , , , , , , , , Stanley Chu Subject: [PATCH v2 3/4] scsi: ufs: customize flush threshold for WriteBooster Date: Sat, 9 May 2020 17:37:15 +0800 Message-ID: <20200509093716.21010-4-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200509093716.21010-1-stanley.chu@mediatek.com> References: <20200509093716.21010-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: A1C6ED970B30FA952A189F7D64977EEEC0A73EE51969F02DCF84178B2B2A59822000:8 X-MTK: N Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Allow flush threshold for WriteBooster to be customizable by vendors. To achieve this, make the value as a variable in struct ufs_hba_variant_params. Besides, use macro UFS_WB_BUF_REMAIN_PERCENT() instead to provide more flexible usage of WriteBooster available buffer values. Signed-off-by: Stanley Chu --- drivers/scsi/ufs/ufs.h | 5 +---- drivers/scsi/ufs/ufshcd.c | 7 ++++--- drivers/scsi/ufs/ufshcd.h | 1 + 3 files changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index b3135344ab3f..fadba3a3bbcd 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -478,10 +478,7 @@ enum ufs_dev_pwr_mode { UFS_POWERDOWN_PWR_MODE = 3, }; -enum ufs_dev_wb_buf_avail_size { - UFS_WB_10_PERCENT_BUF_REMAIN = 0x1, - UFS_WB_40_PERCENT_BUF_REMAIN = 0x4, -}; +#define UFS_WB_BUF_REMAIN_PERCENT(val) ((val) / 10) /** * struct utp_cmd_rsp - Response UPIU structure diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index cdacbe6378a1..aca50ed39844 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -5301,8 +5301,8 @@ static bool ufshcd_wb_presrv_usrspc_keep_vcc_on(struct ufs_hba *hba, cur_buf); return false; } - /* Let it continue to flush when >60% full */ - if (avail_buf < UFS_WB_40_PERCENT_BUF_REMAIN) + /* Let it continue to flush when available buffer exceeds threshold */ + if (avail_buf < hba->vps->wb_flush_threshold) return true; return false; @@ -5336,7 +5336,7 @@ static bool ufshcd_wb_keep_vcc_on(struct ufs_hba *hba) } if (!hba->dev_info.b_presrv_uspc_en) { - if (avail_buf <= UFS_WB_10_PERCENT_BUF_REMAIN) + if (avail_buf <= UFS_WB_BUF_REMAIN_PERCENT(10)) return true; return false; } @@ -7462,6 +7462,7 @@ static const struct attribute_group *ufshcd_driver_groups[] = { static struct ufs_hba_variant_params ufs_hba_vps = { .hba_enable_delay_us = 1000, + .wb_flush_threshold = UFS_WB_BUF_REMAIN_PERCENT(40), .devfreq_profile.polling_ms = 100, .devfreq_profile.target = ufshcd_devfreq_target, .devfreq_profile.get_dev_status = ufshcd_devfreq_get_dev_status, diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index f7bdf52ba8b0..e3dfb48e669e 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -570,6 +570,7 @@ struct ufs_hba_variant_params { struct devfreq_dev_profile devfreq_profile; struct devfreq_simple_ondemand_data ondemand_data; u16 hba_enable_delay_us; + u32 wb_flush_threshold; }; /** From patchwork Sat May 9 09:37:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanley Chu X-Patchwork-Id: 11538139 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id F409E92A for ; Sat, 9 May 2020 09:37:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D327924956 for ; Sat, 9 May 2020 09:37:40 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="F682NrjV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728105AbgEIJhW (ORCPT ); Sat, 9 May 2020 05:37:22 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:14299 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726885AbgEIJhV (ORCPT ); Sat, 9 May 2020 05:37:21 -0400 X-UUID: af4c143c0417438c98634c562919f6fc-20200509 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=+7J/Ls/qZVPDQuRiUUjEeGW9nmJ58u2HwRnHyuO/vGQ=; b=F682NrjVCiA6DkCOVjnfoy8CWlR7fchyfIbvkY1zxY2C1WDZJYIjaNKNxRUtVxmcVEh7SvbOu87ZwZ1h0GeH0pT3z7t6ZDvtkwgKEuJeBWOyln2UwD0nCLFHnS1IINyt4LMt1aKqvsI2ApouD1H/peNM7I+RYGIrAYUj136/MAQ=; X-UUID: af4c143c0417438c98634c562919f6fc-20200509 Received: from mtkcas10.mediatek.inc [(172.21.101.39)] by mailgw02.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 455811775; Sat, 09 May 2020 17:37:19 +0800 Received: from MTKCAS06.mediatek.inc (172.21.101.30) by mtkmbs08n1.mediatek.inc (172.21.101.55) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Sat, 9 May 2020 17:37:17 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by MTKCAS06.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Sat, 9 May 2020 17:37:17 +0800 From: Stanley Chu To: , , , , , CC: , , , , , , , , , , , Stanley Chu Subject: [PATCH v2 4/4] scsi: ufs-mediatek: customize WriteBooster flush policy Date: Sat, 9 May 2020 17:37:16 +0800 Message-ID: <20200509093716.21010-5-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200509093716.21010-1-stanley.chu@mediatek.com> References: <20200509093716.21010-1-stanley.chu@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Change the WriteBooster policy to keep VCC on during runtime suspend if available WriteBooster buffer is less than 80%. Signed-off-by: Stanley Chu Reviewed-by: Asutosh Das --- drivers/scsi/ufs/ufs-mediatek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 56620f7d88ce..94e97701f456 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -271,6 +271,7 @@ static int ufs_mtk_init(struct ufs_hba *hba) /* Enable WriteBooster */ hba->caps |= UFSHCD_CAP_WB_EN; + hba->vps->wb_flush_threshold = UFS_WB_BUF_REMAIN_PERCENT(80); /* * ufshcd_vops_init() is invoked after