| Message ID | e8d303eff0713a3e5f3c3725cdf6e5c5d3de2b01.1678244386.git.quic_asutoshd@quicinc.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | [v1,1/1] scsi: ufs: mcq: Use active_reqs to check busy in clock scaling | expand |
On Tue, Mar 07, 2023 at 07:00:09PM -0800, Asutosh Das wrote: > Multi Circular Queue doesn't use outstanding_reqs. > But the ufs clock scaling functions use outstanding_reqs to > determine if there're requests pending. When MCQ is enabled > this check always returns false. > > Hence use active_reqs to check if there're pending requests. > > Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com> This looks like a fix to me. Hence there should be a fixes tag. With that, Reviewed-by: Manivannan Sadhasivam <mani@kernel.org> Thanks, Mani > --- > drivers/ufs/core/ufshcd.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c > index 172d25fef740..c6b35123c83b 100644 > --- a/drivers/ufs/core/ufshcd.c > +++ b/drivers/ufs/core/ufshcd.c > @@ -1500,7 +1500,7 @@ static int ufshcd_devfreq_get_dev_status(struct device *dev, > scaling->window_start_t = curr_t; > scaling->tot_busy_t = 0; > > - if (hba->outstanding_reqs) { > + if (scaling->active_reqs) { > scaling->busy_start_t = curr_t; > scaling->is_busy_started = true; > } else { > @@ -2118,7 +2118,7 @@ static void ufshcd_clk_scaling_update_busy(struct ufs_hba *hba) > > spin_lock_irqsave(hba->host->host_lock, flags); > hba->clk_scaling.active_reqs--; > - if (!hba->outstanding_reqs && scaling->is_busy_started) { > + if (!scaling->active_reqs && scaling->is_busy_started) { > scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(), > scaling->busy_start_t)); > scaling->busy_start_t = 0; > -- > 2.7.4 >
diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c index 172d25fef740..c6b35123c83b 100644 --- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -1500,7 +1500,7 @@ static int ufshcd_devfreq_get_dev_status(struct device *dev, scaling->window_start_t = curr_t; scaling->tot_busy_t = 0; - if (hba->outstanding_reqs) { + if (scaling->active_reqs) { scaling->busy_start_t = curr_t; scaling->is_busy_started = true; } else { @@ -2118,7 +2118,7 @@ static void ufshcd_clk_scaling_update_busy(struct ufs_hba *hba) spin_lock_irqsave(hba->host->host_lock, flags); hba->clk_scaling.active_reqs--; - if (!hba->outstanding_reqs && scaling->is_busy_started) { + if (!scaling->active_reqs && scaling->is_busy_started) { scaling->tot_busy_t += ktime_to_us(ktime_sub(ktime_get(), scaling->busy_start_t)); scaling->busy_start_t = 0;
Multi Circular Queue doesn't use outstanding_reqs. But the ufs clock scaling functions use outstanding_reqs to determine if there're requests pending. When MCQ is enabled this check always returns false. Hence use active_reqs to check if there're pending requests. Signed-off-by: Asutosh Das <quic_asutoshd@quicinc.com> --- drivers/ufs/core/ufshcd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)