From: Stanley Chu <stanley.chu@mediatek.com>
To: <linux-scsi@vger.kernel.org>, <martin.petersen@oracle.com>,
<avri.altman@wdc.com>, <alim.akhtar@samsung.com>,
<jejb@linux.ibm.com>, <asutoshd@codeaurora.org>
Cc: bvanassche@acm.org, andy.teng@mediatek.com,
chun-hung.wu@mediatek.com, kuohong.wang@mediatek.com,
linux-kernel@vger.kernel.org, cang@codeaurora.org,
linux-mediatek@lists.infradead.org, peter.wang@mediatek.com,
matthias.bgg@gmail.com, Stanley Chu <stanley.chu@mediatek.com>,
linux-arm-kernel@lists.infradead.org, beanhuo@micron.com
Subject: [PATCH v1 4/5] scsi: ufs: use flexible definition for UFS_WB_BUF_REMAIN_PERCENT
Date: Sat, 9 May 2020 01:15:12 +0800 [thread overview]
Message-ID: <20200508171513.14665-5-stanley.chu@mediatek.com> (raw)
In-Reply-To: <20200508171513.14665-1-stanley.chu@mediatek.com>
Use macro UFS_WB_BUF_REMAIN_PERCENT() instead to provide
more flexible usage of WriteBooster available buffer values.
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
---
drivers/scsi/ufs/ufs.h | 5 +----
drivers/scsi/ufs/ufshcd.c | 4 ++--
2 files changed, 3 insertions(+), 6 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 9a0ce6550c2f..bcc7a9ea8d2b 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -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;
}
@@ -7463,7 +7463,7 @@ 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_40_PERCENT_BUF_REMAIN,
+ .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,
--
2.18.0
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next prev parent reply other threads:[~2020-05-08 17:26 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-08 17:15 [PATCH v1 0/5] scsi: ufs: allow customizable WriteBooster flush policy Stanley Chu
2020-05-08 17:15 ` [PATCH v1 1/5] scsi: ufs: introduce ufs_hba_variant_params to collect customizable parameters Stanley Chu
2020-05-08 17:15 ` [PATCH v1 2/5] scsi: ufs-mediatek: change the way to use " Stanley Chu
2020-05-08 17:15 ` [PATCH v1 3/5] scsi: ufs: customize flush threshold for WriteBooster Stanley Chu
2020-05-08 18:12 ` Asutosh Das (asd)
2020-05-09 9:15 ` Stanley Chu
2020-05-08 17:15 ` Stanley Chu [this message]
2020-05-08 17:15 ` [PATCH v1 5/5] scsi: ufs-mediatek: customize WriteBooster flush policy Stanley Chu
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