From patchwork Sat Jun 10 08:33:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Po-Wen Kao X-Patchwork-Id: 691302 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA894C77B7A for ; Sat, 10 Jun 2023 08:35:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233518AbjFJIfj (ORCPT ); Sat, 10 Jun 2023 04:35:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233645AbjFJIfi (ORCPT ); Sat, 10 Jun 2023 04:35:38 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 31EFF3A9B; Sat, 10 Jun 2023 01:35:28 -0700 (PDT) X-UUID: bdb1ba52076911eeb20a276fd37b9834-20230610 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=F9DGJSfoIMfDpQBvUKd3BLVt+nRsf5o9c4jFkq99mEg=; b=KNrZ1WpOmhCncezTManAut9wasLZuckDAQUvrW20c3vKLfXERcn6rr4fFyohJr3HmWzfJ4NiJnbUUItGCSHVxrf8e2iUWqfzw8HGrnuqQs6xa0ESIWfPOglcBMXLZmpqHLO/Ro2P4hvq6JAS4yaqItzFrYmLidXVyY0/QQV0ulw=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.26, REQID:5042375d-f916-47d5-a46b-daa2b5c5557d, IP:0, U RL:0,TC:0,Content:0,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTION: release,TS:0 X-CID-META: VersionHash:cb9a4e1, CLOUDID:49ecfd3d-de1e-4348-bc35-c96f92f1dcbb, B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0,LES:1,SPR:NO X-CID-BVR: 0,NGT X-CID-BAS: 0,NGT,0,_ X-CID-FACTOR: TF_CID_SPAM_SNR X-UUID: bdb1ba52076911eeb20a276fd37b9834-20230610 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1940467571; Sat, 10 Jun 2023 16:35:23 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sat, 10 Jun 2023 16:35:21 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sat, 10 Jun 2023 16:35:21 +0800 From: Po-Wen Kao To: , , , , Alim Akhtar , Avri Altman , Bart Van Assche , "James E.J. Bottomley" , "Martin K. Petersen" , Matthias Brugger , AngeloGioacchino Del Regno CC: , , , , , , , , Subject: [PATCH v3 1/2] scsi: ufs: core: Export symbols for MTK driver module Date: Sat, 10 Jun 2023 16:33:19 +0800 Message-ID: <20230610083321.5566-2-powen.kao@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230610083321.5566-1-powen.kao@mediatek.com> References: <20230610083321.5566-1-powen.kao@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Export symbols for MediaTek UFS driver's PM flow and irq handler. Signed-off-by: Po-Wen Kao Reviewed-by: Bart Van Assche Reviewed-by: Stanley Chu Reviewed-by: AngeloGioacchino Del Regno --- drivers/ufs/core/ufs-mcq.c | 3 +++ drivers/ufs/core/ufshcd-priv.h | 2 -- include/ufs/ufshcd.h | 3 +++ 3 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/ufs/core/ufs-mcq.c b/drivers/ufs/core/ufs-mcq.c index 785fc9762cad..63c2a4bdbb4a 100644 --- a/drivers/ufs/core/ufs-mcq.c +++ b/drivers/ufs/core/ufs-mcq.c @@ -99,6 +99,7 @@ void ufshcd_mcq_config_mac(struct ufs_hba *hba, u32 max_active_cmds) val |= FIELD_PREP(MCQ_CFG_MAC_MASK, max_active_cmds); ufshcd_writel(hba, val, REG_UFS_MCQ_CFG); } +EXPORT_SYMBOL_GPL(ufshcd_mcq_config_mac); /** * ufshcd_mcq_req_to_hwq - find the hardware queue on which the @@ -249,6 +250,7 @@ u32 ufshcd_mcq_read_cqis(struct ufs_hba *hba, int i) { return readl(mcq_opr_base(hba, OPR_CQIS, i) + REG_CQIS); } +EXPORT_SYMBOL_GPL(ufshcd_mcq_read_cqis); void ufshcd_mcq_write_cqis(struct ufs_hba *hba, u32 val, int i) { @@ -392,6 +394,7 @@ void ufshcd_mcq_make_queues_operational(struct ufs_hba *hba) MCQ_CFG_n(REG_SQATTR, i)); } } +EXPORT_SYMBOL_GPL(ufshcd_mcq_make_queues_operational); void ufshcd_mcq_enable_esi(struct ufs_hba *hba) { diff --git a/drivers/ufs/core/ufshcd-priv.h b/drivers/ufs/core/ufshcd-priv.h index aa88e60ea1f6..4dee397513d2 100644 --- a/drivers/ufs/core/ufshcd-priv.h +++ b/drivers/ufs/core/ufshcd-priv.h @@ -66,8 +66,6 @@ void ufshcd_compl_one_cqe(struct ufs_hba *hba, int task_tag, int ufshcd_mcq_init(struct ufs_hba *hba); int ufshcd_mcq_decide_queue_depth(struct ufs_hba *hba); int ufshcd_mcq_memory_alloc(struct ufs_hba *hba); -void ufshcd_mcq_make_queues_operational(struct ufs_hba *hba); -void ufshcd_mcq_config_mac(struct ufs_hba *hba, u32 max_active_cmds); void ufshcd_mcq_select_mcq_mode(struct ufs_hba *hba); u32 ufshcd_mcq_read_cqis(struct ufs_hba *hba, int i); void ufshcd_mcq_write_cqis(struct ufs_hba *hba, u32 val, int i); diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 9b2d1859f885..871985073a8e 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -1242,9 +1242,12 @@ void ufshcd_parse_dev_ref_clk_freq(struct ufs_hba *hba, struct clk *refclk); void ufshcd_update_evt_hist(struct ufs_hba *hba, u32 id, u32 val); void ufshcd_hba_stop(struct ufs_hba *hba); void ufshcd_schedule_eh_work(struct ufs_hba *hba); +void ufshcd_mcq_config_mac(struct ufs_hba *hba, u32 max_active_cmds); +u32 ufshcd_mcq_read_cqis(struct ufs_hba *hba, int i); void ufshcd_mcq_write_cqis(struct ufs_hba *hba, u32 val, int i); unsigned long ufshcd_mcq_poll_cqe_lock(struct ufs_hba *hba, struct ufs_hw_queue *hwq); +void ufshcd_mcq_make_queues_operational(struct ufs_hba *hba); void ufshcd_mcq_enable_esi(struct ufs_hba *hba); void ufshcd_mcq_config_esi(struct ufs_hba *hba, struct msi_msg *msg); From patchwork Sat Jun 10 08:33:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Po-Wen Kao X-Patchwork-Id: 691607 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 617AFC77B7A for ; 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Sat, 10 Jun 2023 16:35:23 +0800 Received: from mtkmbs13n1.mediatek.inc (172.21.101.193) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Sat, 10 Jun 2023 16:35:22 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs13n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Sat, 10 Jun 2023 16:35:22 +0800 From: Po-Wen Kao To: , , , , Stanley Chu , "James E.J. Bottomley" , "Martin K. Petersen" , Matthias Brugger , AngeloGioacchino Del Regno CC: , , , , , , , Subject: [PATCH v3 2/2] scsi: ufs: ufs-mediatek: Add MCQ support for MTK platform Date: Sat, 10 Jun 2023 16:33:20 +0800 Message-ID: <20230610083321.5566-3-powen.kao@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230610083321.5566-1-powen.kao@mediatek.com> References: <20230610083321.5566-1-powen.kao@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Add UFS MCQ vops and irq handler for MediaTek platform. PM flow is fixed accordingly. Signed-off-by: Po-Wen Kao Reviewed-by: Stanley Chu --- drivers/ufs/host/ufs-mediatek.c | 174 +++++++++++++++++++++++++++++++- drivers/ufs/host/ufs-mediatek.h | 33 ++++++ 2 files changed, 205 insertions(+), 2 deletions(-) diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 33b301649757..662b06e285c6 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -27,8 +27,14 @@ #include #include "ufs-mediatek.h" +static int ufs_mtk_config_mcq(struct ufs_hba *hba, bool irq); + #define CREATE_TRACE_POINTS #include "ufs-mediatek-trace.h" +#undef CREATE_TRACE_POINTS + +#define MAX_SUPP_MAC 64 +#define MCQ_QUEUE_OFFSET(c) ((((c) >> 16) & 0xFF) * 0x200) static const struct ufs_dev_quirk ufs_mtk_dev_fixups[] = { { .wmanufacturerid = UFS_ANY_VENDOR, @@ -840,6 +846,37 @@ static void ufs_mtk_vreg_fix_vccqx(struct ufs_hba *hba) } } +static void ufs_mtk_init_mcq_irq(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + struct platform_device *pdev; + int i; + int irq; + + host->mcq_nr_intr = UFSHCD_MAX_Q_NR; + pdev = container_of(hba->dev, struct platform_device, dev); + + /* invalidate irq info */ + for (i = 0; i < host->mcq_nr_intr; i++) + host->mcq_intr_info[i].irq = MTK_MCQ_INVALID_IRQ; + + for (i = 0; i < host->mcq_nr_intr; i++) { + /* irq index 0 is legacy irq, sq/cq irq start from index 1 */ + irq = platform_get_irq(pdev, i + 1); + if (irq < 0) { + dev_err(hba->dev, "get platform mcq irq fail: %d\n", i); + goto failed; + } + host->mcq_intr_info[i].hba = hba; + host->mcq_intr_info[i].irq = irq; + dev_info(hba->dev, "get platform mcq irq: %d, %d\n", i, irq); + } + + return; +failed: + host->mcq_nr_intr = 0; +} + /** * ufs_mtk_init - find other essential mmio bases * @hba: host controller instance @@ -876,6 +913,8 @@ static int ufs_mtk_init(struct ufs_hba *hba) /* Initialize host capability */ ufs_mtk_init_host_caps(hba); + ufs_mtk_init_mcq_irq(hba); + err = ufs_mtk_bind_mphy(hba); if (err) goto out_variant_clear; @@ -1171,7 +1210,16 @@ static int ufs_mtk_link_set_hpm(struct ufs_hba *hba) else return err; - err = ufshcd_make_hba_operational(hba); + if (!hba->mcq_enabled) { + err = ufshcd_make_hba_operational(hba); + } else { + ufs_mtk_config_mcq(hba, false); + ufshcd_mcq_make_queues_operational(hba); + ufshcd_mcq_config_mac(hba, hba->nutrs); + ufshcd_writel(hba, ufshcd_readl(hba, REG_UFS_MEM_CFG) | 0x1, + REG_UFS_MEM_CFG); + } + if (err) return err; @@ -1495,6 +1543,123 @@ static int ufs_mtk_clk_scale_notify(struct ufs_hba *hba, bool scale_up, return 0; } +static int ufs_mtk_get_hba_mac(struct ufs_hba *hba) +{ + return MAX_SUPP_MAC; +} + +static int ufs_mtk_op_runtime_config(struct ufs_hba *hba) +{ + struct ufshcd_mcq_opr_info_t *opr; + int i; + + for (i = 0; i < OPR_MAX; i++) { + opr = &hba->mcq_opr[i]; + opr->stride = REG_UFS_MCQ_STRIDE; + } + + hba->mcq_opr[OPR_SQD].offset = REG_UFS_MTK_SQD; + hba->mcq_opr[OPR_SQIS].offset = REG_UFS_MTK_SQIS; + hba->mcq_opr[OPR_CQD].offset = REG_UFS_MTK_CQD; + hba->mcq_opr[OPR_CQIS].offset = REG_UFS_MTK_CQIS; + + hba->mcq_opr[OPR_SQD].base = hba->mmio_base + REG_UFS_MTK_SQD; + hba->mcq_opr[OPR_SQIS].base = hba->mmio_base + REG_UFS_MTK_SQIS; + hba->mcq_opr[OPR_CQD].base = hba->mmio_base + REG_UFS_MTK_CQD; + hba->mcq_opr[OPR_CQIS].base = hba->mmio_base + REG_UFS_MTK_CQIS; + + return 0; +} + +static int ufs_mtk_mcq_config_resource(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + + /* fail mcq initialization if interrupt is not filled properly */ + if (!host->mcq_nr_intr) { + dev_info(hba->dev, "IRQs not ready. MCQ disabled."); + return -EINVAL; + } + + hba->mcq_base = hba->mmio_base + MCQ_QUEUE_OFFSET(hba->mcq_capabilities); + return 0; +} + +static irqreturn_t ufs_mtk_mcq_intr(int irq, void *__intr_info) +{ + struct ufs_mtk_mcq_intr_info *mcq_intr_info = __intr_info; + struct ufs_hba *hba = mcq_intr_info->hba; + struct ufs_hw_queue *hwq; + u32 events; + int i = mcq_intr_info->qid; + + hwq = &hba->uhq[i]; + + events = ufshcd_mcq_read_cqis(hba, i); + if (events) + ufshcd_mcq_write_cqis(hba, events, i); + + if (events & UFSHCD_MCQ_CQIS_TAIL_ENT_PUSH_STS) + ufshcd_mcq_poll_cqe_lock(hba, hwq); + + return IRQ_HANDLED; +} + +static int ufs_mtk_config_mcq_irq(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + u32 irq, i; + int ret; + + for (i = 0; i < host->mcq_nr_intr; i++) { + irq = host->mcq_intr_info[i].irq; + if (irq == MTK_MCQ_INVALID_IRQ) { + dev_err(hba->dev, "invalid irq. %d\n", i); + return -ENOPARAM; + } + + host->mcq_intr_info[i].qid = i; + ret = devm_request_irq(hba->dev, irq, ufs_mtk_mcq_intr, 0, UFSHCD, + &host->mcq_intr_info[i]); + + dev_info(hba->dev, "request irq %d intr %s\n", irq, ret ? "failed" : ""); + + if (ret) + return ret; + } + + return 0; +} + +static int ufs_mtk_config_mcq(struct ufs_hba *hba, bool irq) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + int ret = 0; + + if (!host->mcq_set_intr) { + /* Disable irq option register */ + ufshcd_rmwl(hba, MCQ_INTR_EN_MSK, 0, REG_UFS_MMIO_OPT_CTRL_0); + + if (irq) + ret = ufs_mtk_config_mcq_irq(hba); + + if (ret) + return ret; + + host->mcq_set_intr = true; + } + + ufshcd_rmwl(hba, MCQ_AH8, MCQ_AH8, REG_UFS_MMIO_OPT_CTRL_0); + ufshcd_rmwl(hba, MCQ_INTR_EN_MSK, MCQ_MULTI_INTR_EN, REG_UFS_MMIO_OPT_CTRL_0); + + return 0; +} + +static int ufs_mtk_config_esi(struct ufs_hba *hba) +{ + return ufs_mtk_config_mcq(hba, true); +} + /* * struct ufs_hba_mtk_vops - UFS MTK specific variant operations * @@ -1518,6 +1683,11 @@ static const struct ufs_hba_variant_ops ufs_hba_mtk_vops = { .event_notify = ufs_mtk_event_notify, .config_scaling_param = ufs_mtk_config_scaling_param, .clk_scale_notify = ufs_mtk_clk_scale_notify, + /* mcq vops */ + .get_hba_mac = ufs_mtk_get_hba_mac, + .op_runtime_config = ufs_mtk_op_runtime_config, + .mcq_config_resource = ufs_mtk_mcq_config_resource, + .config_esi = ufs_mtk_config_esi, }; /** @@ -1564,7 +1734,7 @@ static int ufs_mtk_probe(struct platform_device *pdev) out: if (err) - dev_info(dev, "probe failed %d\n", err); + dev_err(dev, "probe failed %d\n", err); of_node_put(reset_node); return err; diff --git a/drivers/ufs/host/ufs-mediatek.h b/drivers/ufs/host/ufs-mediatek.h index 2fc6d7b87694..6e41550e1830 100644 --- a/drivers/ufs/host/ufs-mediatek.h +++ b/drivers/ufs/host/ufs-mediatek.h @@ -10,11 +10,27 @@ #include #include +/* + * MCQ define and struct + */ +#define UFSHCD_MAX_Q_NR 8 +#define MTK_MCQ_INVALID_IRQ 0xFFFF + +/* REG_UFS_MMIO_OPT_CTRL_0 160h */ +#define EHS_EN 0x1 +#define PFM_IMPV 0x2 +#define MCQ_MULTI_INTR_EN 0x4 +#define MCQ_CMB_INTR_EN 0x8 +#define MCQ_AH8 0x10 + +#define MCQ_INTR_EN_MSK (MCQ_MULTI_INTR_EN | MCQ_CMB_INTR_EN) + /* * Vendor specific UFSHCI Registers */ #define REG_UFS_XOUFS_CTRL 0x140 #define REG_UFS_REFCLK_CTRL 0x144 +#define REG_UFS_MMIO_OPT_CTRL_0 0x160 #define REG_UFS_EXTREG 0x2100 #define REG_UFS_MPHYCTRL 0x2200 #define REG_UFS_MTK_IP_VER 0x2240 @@ -26,6 +42,13 @@ #define REG_UFS_DEBUG_SEL_B2 0x22D8 #define REG_UFS_DEBUG_SEL_B3 0x22DC +#define REG_UFS_MTK_SQD 0x2800 +#define REG_UFS_MTK_SQIS 0x2814 +#define REG_UFS_MTK_CQD 0x281C +#define REG_UFS_MTK_CQIS 0x2824 + +#define REG_UFS_MCQ_STRIDE 0x30 + /* * Ref-clk control * @@ -136,6 +159,12 @@ struct ufs_mtk_hw_ver { u8 major; }; +struct ufs_mtk_mcq_intr_info { + struct ufs_hba *hba; + u32 irq; + u8 qid; +}; + struct ufs_mtk_host { struct phy *mphy; struct pm_qos_request pm_qos_req; @@ -155,6 +184,10 @@ struct ufs_mtk_host { u16 ref_clk_ungating_wait_us; u16 ref_clk_gating_wait_us; u32 ip_ver; + + bool mcq_set_intr; + int mcq_nr_intr; + struct ufs_mtk_mcq_intr_info mcq_intr_info[UFSHCD_MAX_Q_NR]; }; /*