From patchwork Wed Jun 23 07:35:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Can Guo X-Patchwork-Id: 12339235 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ACEB6C4743C for ; Wed, 23 Jun 2021 07:42:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 962EA6128C for ; Wed, 23 Jun 2021 07:42:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229987AbhFWHpL (ORCPT ); Wed, 23 Jun 2021 03:45:11 -0400 Received: from labrats.qualcomm.com ([199.106.110.90]:11986 "EHLO labrats.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229938AbhFWHpK (ORCPT ); Wed, 23 Jun 2021 03:45:10 -0400 X-Greylist: delayed 366 seconds by postgrey-1.27 at vger.kernel.org; Wed, 23 Jun 2021 03:45:10 EDT IronPort-SDR: ctEM4QSLoXvC/Zv1StDrWtEWkPnvsFBmb/9zZU6Xl2S0Nhnd3UEOOWuXBcVa6AhbfQo+pe/vzj Al/wPoQBIE70ChFg8ySnnXGcexOBTRCzGsClzqdyy9LX6AEJK4S/ZxFeQP29iBnFC9rx9B1r6B 6a/ZW8AzdjERiATCscvEUvRO7/XvWET9hbI44xzweRILO4B56VuTGIOeIhmW4QowbAKzqZerbP CZhBIukh7BIUvyAMUhoB72LfISMlm1hZDGKYToYlqGEkbWYxXqTpC126SmRoSZvzNiPRKx29SW Jis= X-IronPort-AV: E=Sophos;i="5.83,293,1616482800"; d="scan'208";a="29780818" Received: from unknown (HELO ironmsg03-sd.qualcomm.com) ([10.53.140.143]) by labrats.qualcomm.com with ESMTP; 23 Jun 2021 00:36:47 -0700 X-QCInternal: smtphost Received: from stor-presley.qualcomm.com ([192.168.140.85]) by ironmsg03-sd.qualcomm.com with ESMTP; 23 Jun 2021 00:36:46 -0700 Received: by stor-presley.qualcomm.com (Postfix, from userid 359480) id A374A21BC1; Wed, 23 Jun 2021 00:36:46 -0700 (PDT) From: Can Guo To: asutoshd@codeaurora.org, nguyenb@codeaurora.org, hongwus@codeaurora.org, ziqichen@codeaurora.org, linux-scsi@vger.kernel.org, kernel-team@android.com, cang@codeaurora.org Cc: Andy Gross , Bjorn Andersson , Alim Akhtar , Avri Altman , "James E.J. Bottomley" , "Martin K. Petersen" , Stanley Chu , Bean Huo , Jaegeuk Kim , Adrian Hunter , Kiwoong Kim , Satya Tangirala , Bart Van Assche , linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT), linux-kernel@vger.kernel.org (open list) Subject: [PATCH v4 01/10] scsi: ufs: Rename flags pm_op_in_progress and is_sys_suspended Date: Wed, 23 Jun 2021 00:35:00 -0700 Message-Id: <1624433711-9339-2-git-send-email-cang@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1624433711-9339-1-git-send-email-cang@codeaurora.org> References: <1624433711-9339-1-git-send-email-cang@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Rename pm_op_in_progress and is_sys_suspended to wlu_pm_op_in_progress and is_wlu_sys_suspended accordingly. Signed-off-by: Can Guo --- drivers/scsi/ufs/ufs-qcom.c | 2 +- drivers/scsi/ufs/ufshcd.c | 30 +++++++++++++++--------------- drivers/scsi/ufs/ufshcd.h | 6 ++++-- 3 files changed, 20 insertions(+), 18 deletions(-) diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 9b1d18d..fbe21e0 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -641,7 +641,7 @@ static int ufs_qcom_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) if (err) return err; - hba->is_sys_suspended = false; + hba->is_wlu_sys_suspended = false; return 0; } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 25fe18a..c40ba1d 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -549,8 +549,8 @@ static void ufshcd_print_host_state(struct ufs_hba *hba) hba->saved_err, hba->saved_uic_err); dev_err(hba->dev, "Device power mode=%d, UIC link state=%d\n", hba->curr_dev_pwr_mode, hba->uic_link_state); - dev_err(hba->dev, "PM in progress=%d, sys. suspended=%d\n", - hba->pm_op_in_progress, hba->is_sys_suspended); + dev_err(hba->dev, "wlu_pm_op_in_progress=%d, is_wlu_sys_suspended=%d\n", + hba->wlu_pm_op_in_progress, hba->is_wlu_sys_suspended); dev_err(hba->dev, "Auto BKOPS=%d, Host self-block=%d\n", hba->auto_bkops_enabled, hba->host->host_self_blocked); dev_err(hba->dev, "Clk gate=%d\n", hba->clk_gating.state); @@ -1999,7 +1999,7 @@ static void ufshcd_clk_scaling_start_busy(struct ufs_hba *hba) if (!hba->clk_scaling.active_reqs++) queue_resume_work = true; - if (!hba->clk_scaling.is_enabled || hba->pm_op_in_progress) { + if (!hba->clk_scaling.is_enabled || hba->wlu_pm_op_in_progress) { spin_unlock_irqrestore(hba->host->host_lock, flags); return; } @@ -2734,7 +2734,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) * err handler blocked for too long. So, just fail the scsi cmd * sent from PM ops, err handler can recover PM error anyways. */ - if (hba->pm_op_in_progress) { + if (hba->wlu_pm_op_in_progress) { hba->force_reset = true; set_host_byte(cmd, DID_BAD_TARGET); cmd->scsi_done(cmd); @@ -2767,7 +2767,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) (hba->clk_gating.state != CLKS_ON)); if (unlikely(test_bit(tag, &hba->outstanding_reqs))) { - if (hba->pm_op_in_progress) + if (hba->wlu_pm_op_in_progress) set_host_byte(cmd, DID_BAD_TARGET); else err = SCSI_MLQUEUE_HOST_BUSY; @@ -5116,7 +5116,7 @@ ufshcd_transfer_rsp_status(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) * solution could be to abort the system suspend if * UFS device needs urgent BKOPs. */ - if (!hba->pm_op_in_progress && + if (!hba->wlu_pm_op_in_progress && !ufshcd_eh_in_progress(hba) && ufshcd_is_exception_event(lrbp->ucd_rsp_ptr)) /* Flushed in suspend */ @@ -5916,7 +5916,7 @@ static void ufshcd_err_handling_prepare(struct ufs_hba *hba) { ufshcd_rpm_get_sync(hba); if (pm_runtime_status_suspended(&hba->sdev_ufs_device->sdev_gendev) || - hba->is_sys_suspended) { + hba->is_wlu_sys_suspended) { enum ufs_pm_op pm_op; /* @@ -5933,7 +5933,7 @@ static void ufshcd_err_handling_prepare(struct ufs_hba *hba) if (!ufshcd_is_clkgating_allowed(hba)) ufshcd_setup_clocks(hba, true); ufshcd_release(hba); - pm_op = hba->is_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM; + pm_op = hba->is_wlu_sys_suspended ? UFS_SYSTEM_PM : UFS_RUNTIME_PM; ufshcd_vops_resume(hba, pm_op); } else { ufshcd_hold(hba, false); @@ -5976,7 +5976,7 @@ static void ufshcd_recover_pm_error(struct ufs_hba *hba) struct request_queue *q; int ret; - hba->is_sys_suspended = false; + hba->is_wlu_sys_suspended = false; /* * Set RPM status of wlun device to RPM_ACTIVE, * this also clears its runtime error. @@ -8784,7 +8784,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) enum ufs_dev_pwr_mode req_dev_pwr_mode; enum uic_link_state req_link_state; - hba->pm_op_in_progress = true; + hba->wlu_pm_op_in_progress = true; if (pm_op != UFS_SHUTDOWN_PM) { pm_lvl = pm_op == UFS_RUNTIME_PM ? hba->rpm_lvl : hba->spm_lvl; @@ -8919,7 +8919,7 @@ static int __ufshcd_wl_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op) hba->clk_gating.is_suspended = false; ufshcd_release(hba); } - hba->pm_op_in_progress = false; + hba->wlu_pm_op_in_progress = false; return ret; } @@ -8928,7 +8928,7 @@ static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) int ret; enum uic_link_state old_link_state = hba->uic_link_state; - hba->pm_op_in_progress = true; + hba->wlu_pm_op_in_progress = true; /* * Call vendor specific resume callback. As these callbacks may access @@ -9006,7 +9006,7 @@ static int __ufshcd_wl_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) ufshcd_update_evt_hist(hba, UFS_EVT_WL_RES_ERR, (u32)ret); hba->clk_gating.is_suspended = false; ufshcd_release(hba); - hba->pm_op_in_progress = false; + hba->wlu_pm_op_in_progress = false; return ret; } @@ -9072,7 +9072,7 @@ static int ufshcd_wl_suspend(struct device *dev) out: if (!ret) - hba->is_sys_suspended = true; + hba->is_wlu_sys_suspended = true; trace_ufshcd_wl_suspend(dev_name(dev), ret, ktime_to_us(ktime_sub(ktime_get(), start)), hba->curr_dev_pwr_mode, hba->uic_link_state); @@ -9100,7 +9100,7 @@ static int ufshcd_wl_resume(struct device *dev) ktime_to_us(ktime_sub(ktime_get(), start)), hba->curr_dev_pwr_mode, hba->uic_link_state); if (!ret) - hba->is_sys_suspended = false; + hba->is_wlu_sys_suspended = false; up(&hba->host_sem); return ret; } diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index c98d540..93aeeb3 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -752,7 +752,8 @@ struct ufs_hba { enum ufs_pm_level spm_lvl; struct device_attribute rpm_lvl_attr; struct device_attribute spm_lvl_attr; - int pm_op_in_progress; + /* A flag to tell whether __ufshcd_wl_suspend/resume() is in progress */ + bool wlu_pm_op_in_progress; /* Auto-Hibernate Idle Timer register value */ u32 ahit; @@ -838,7 +839,8 @@ struct ufs_hba { struct devfreq *devfreq; struct ufs_clk_scaling clk_scaling; - bool is_sys_suspended; + /* A flag to tell whether the UFS device W-LU is system suspended */ + bool is_wlu_sys_suspended; enum bkops_status urgent_bkops_lvl; bool is_urgent_bkops_lvl_checked;