diff options
| author | Stanley Chu <stanley.chu@mediatek.com> | 2020-05-09 17:37:15 +0800 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-05-14 21:02:22 -0400 |
| commit | d14734ae3ae79d3b0286a2431782054e5066da8f (patch) | |
| tree | a0b0a89a5af06bce8259ebf7b7524284ad3a53f8 /drivers/scsi/ufs/ufshcd.c | |
| parent | 90b8491c0033915ec1b290bc1c0de27935cb132d (diff) | |
scsi: ufs: Customize flush threshold for WriteBooster
Allow flush threshold for WriteBooster to be customizable by vendors. To
achieve this, make the value a variable in struct ufs_hba_variant_params.
Also introduce UFS_WB_BUF_REMAIN_PERCENT() macro to provide a more flexible
way to specify WriteBooster available buffer values.
Link: https://lore.kernel.org/r/20200509093716.21010-4-stanley.chu@mediatek.com
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 7 |
1 files changed, 4 insertions, 3 deletions
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, |