diff mbox series

[v2,6/8] drm/msm/dpu: Remove num_enc from topology struct in favour of num_dsc

Message ID 20221221231943.1961117-7-marijn.suijten@somainline.org (mailing list archive)
State Not Applicable
Headers show
Series drm/msm: DSC Electric Boogaloo for sm8[12]50 | expand

Commit Message

Marijn Suijten Dec. 21, 2022, 11:19 p.m. UTC
Downstream calls this num_enc yet the DSC patches introduced a new
num_dsc struct member, leaving num_enc effectively unused.

Fixes: 7e9cc175b159 ("drm/msm/disp/dpu1: Add support for DSC in topology")
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 9 ++++-----
 drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c      | 4 ++--
 drivers/gpu/drm/msm/msm_drv.h               | 2 --
 3 files changed, 6 insertions(+), 9 deletions(-)

Comments

Dmitry Baryshkov Jan. 8, 2023, 11:31 p.m. UTC | #1
On 22/12/2022 01:19, Marijn Suijten wrote:
> Downstream calls this num_enc yet the DSC patches introduced a new
> num_dsc struct member, leaving num_enc effectively unused.
> 
> Fixes: 7e9cc175b159 ("drm/msm/disp/dpu1: Add support for DSC in topology")
> Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 9 ++++-----
>   drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c      | 4 ++--
>   drivers/gpu/drm/msm/msm_drv.h               | 2 --
>   3 files changed, 6 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index 9c6817b5a194..a158cd502d38 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -579,19 +579,18 @@ static struct msm_display_topology dpu_encoder_get_topology(
>   			topology.num_dspp = topology.num_lm;
>   	}
>   
> -	topology.num_enc = 0;
>   	topology.num_intf = intf_count;
>   
>   	if (dpu_enc->dsc) {
> -		/* In case of Display Stream Compression (DSC), we would use
> -		 * 2 encoders, 2 layer mixers and 1 interface
> +		/*
> +		 * In case of Display Stream Compression (DSC), we would use
> +		 * 2 DSC encoders, 2 layer mixers and 1 interface
>   		 * this is power optimal and can drive up to (including) 4k
>   		 * screens
>   		 */
> -		topology.num_enc = 2;
>   		topology.num_dsc = 2;
> -		topology.num_intf = 1;
>   		topology.num_lm = 2;
> +		topology.num_intf = 1;

Unless there is a reason, please move num_intf assignment back while 
preparing v3.

With that fixed:

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

>   	}
>   
>   	return topology;
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
> index dcbf03d2940a..5e7aa0f3a31c 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
> @@ -548,8 +548,8 @@ static int _dpu_rm_populate_requirements(
>   {
>   	reqs->topology = req_topology;
>   
> -	DRM_DEBUG_KMS("num_lm: %d num_enc: %d num_intf: %d\n",
> -		      reqs->topology.num_lm, reqs->topology.num_enc,
> +	DRM_DEBUG_KMS("num_lm: %d num_dsc: %d num_intf: %d\n",
> +		      reqs->topology.num_lm, reqs->topology.num_dsc,
>   		      reqs->topology.num_intf);
>   
>   	return 0;
> diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
> index d4e0ef608950..74626a271f46 100644
> --- a/drivers/gpu/drm/msm/msm_drv.h
> +++ b/drivers/gpu/drm/msm/msm_drv.h
> @@ -82,14 +82,12 @@ enum msm_event_wait {
>   /**
>    * struct msm_display_topology - defines a display topology pipeline
>    * @num_lm:       number of layer mixers used
> - * @num_enc:      number of compression encoder blocks used
>    * @num_intf:     number of interfaces the panel is mounted on
>    * @num_dspp:     number of dspp blocks used
>    * @num_dsc:      number of Display Stream Compression (DSC) blocks used
>    */
>   struct msm_display_topology {
>   	u32 num_lm;
> -	u32 num_enc;
>   	u32 num_intf;
>   	u32 num_dspp;
>   	u32 num_dsc;
Marijn Suijten Jan. 9, 2023, 8:21 a.m. UTC | #2
On 2023-01-09 01:31:57, Dmitry Baryshkov wrote:
> On 22/12/2022 01:19, Marijn Suijten wrote:
> > Downstream calls this num_enc yet the DSC patches introduced a new
> > num_dsc struct member, leaving num_enc effectively unused.
> > 
> > Fixes: 7e9cc175b159 ("drm/msm/disp/dpu1: Add support for DSC in topology")
> > Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
> > ---
> >   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 9 ++++-----
> >   drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c      | 4 ++--
> >   drivers/gpu/drm/msm/msm_drv.h               | 2 --
> >   3 files changed, 6 insertions(+), 9 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> > index 9c6817b5a194..a158cd502d38 100644
> > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> > @@ -579,19 +579,18 @@ static struct msm_display_topology dpu_encoder_get_topology(
> >   			topology.num_dspp = topology.num_lm;
> >   	}
> >   
> > -	topology.num_enc = 0;
> >   	topology.num_intf = intf_count;
> >   
> >   	if (dpu_enc->dsc) {
> > -		/* In case of Display Stream Compression (DSC), we would use
> > -		 * 2 encoders, 2 layer mixers and 1 interface
> > +		/*
> > +		 * In case of Display Stream Compression (DSC), we would use
> > +		 * 2 DSC encoders, 2 layer mixers and 1 interface
> >   		 * this is power optimal and can drive up to (including) 4k
> >   		 * screens
> >   		 */
> > -		topology.num_enc = 2;
> >   		topology.num_dsc = 2;
> > -		topology.num_intf = 1;
> >   		topology.num_lm = 2;
> > +		topology.num_intf = 1;
> 
> Unless there is a reason, please move num_intf assignment back while 
> preparing v3.

The assignment was reordered to match the order described in the comment
right above, such that this reads more naturally.  Not sure if it's
worth sending that as a separate fix, or drop it entirely.

> With that fixed:
> 
> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

<snip>
Dmitry Baryshkov Jan. 9, 2023, 9:08 a.m. UTC | #3
On Mon, 9 Jan 2023 at 10:21, Marijn Suijten
<marijn.suijten@somainline.org> wrote:
>
> On 2023-01-09 01:31:57, Dmitry Baryshkov wrote:
> > On 22/12/2022 01:19, Marijn Suijten wrote:
> > > Downstream calls this num_enc yet the DSC patches introduced a new
> > > num_dsc struct member, leaving num_enc effectively unused.
> > >
> > > Fixes: 7e9cc175b159 ("drm/msm/disp/dpu1: Add support for DSC in topology")
> > > Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
> > > ---
> > >   drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 9 ++++-----
> > >   drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c      | 4 ++--
> > >   drivers/gpu/drm/msm/msm_drv.h               | 2 --
> > >   3 files changed, 6 insertions(+), 9 deletions(-)
> > >
> > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> > > index 9c6817b5a194..a158cd502d38 100644
> > > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> > > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> > > @@ -579,19 +579,18 @@ static struct msm_display_topology dpu_encoder_get_topology(
> > >                     topology.num_dspp = topology.num_lm;
> > >     }
> > >
> > > -   topology.num_enc = 0;
> > >     topology.num_intf = intf_count;
> > >
> > >     if (dpu_enc->dsc) {
> > > -           /* In case of Display Stream Compression (DSC), we would use
> > > -            * 2 encoders, 2 layer mixers and 1 interface
> > > +           /*
> > > +            * In case of Display Stream Compression (DSC), we would use
> > > +            * 2 DSC encoders, 2 layer mixers and 1 interface
> > >              * this is power optimal and can drive up to (including) 4k
> > >              * screens
> > >              */
> > > -           topology.num_enc = 2;
> > >             topology.num_dsc = 2;
> > > -           topology.num_intf = 1;
> > >             topology.num_lm = 2;
> > > +           topology.num_intf = 1;
> >
> > Unless there is a reason, please move num_intf assignment back while
> > preparing v3.
>
> The assignment was reordered to match the order described in the comment
> right above, such that this reads more naturally.  Not sure if it's
> worth sending that as a separate fix, or drop it entirely.

I see. Sounds logical then. Let's keep it as is.

>
> > With that fixed:
> >
> > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
>
> <snip>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
index 9c6817b5a194..a158cd502d38 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
@@ -579,19 +579,18 @@  static struct msm_display_topology dpu_encoder_get_topology(
 			topology.num_dspp = topology.num_lm;
 	}
 
-	topology.num_enc = 0;
 	topology.num_intf = intf_count;
 
 	if (dpu_enc->dsc) {
-		/* In case of Display Stream Compression (DSC), we would use
-		 * 2 encoders, 2 layer mixers and 1 interface
+		/*
+		 * In case of Display Stream Compression (DSC), we would use
+		 * 2 DSC encoders, 2 layer mixers and 1 interface
 		 * this is power optimal and can drive up to (including) 4k
 		 * screens
 		 */
-		topology.num_enc = 2;
 		topology.num_dsc = 2;
-		topology.num_intf = 1;
 		topology.num_lm = 2;
+		topology.num_intf = 1;
 	}
 
 	return topology;
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
index dcbf03d2940a..5e7aa0f3a31c 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c
@@ -548,8 +548,8 @@  static int _dpu_rm_populate_requirements(
 {
 	reqs->topology = req_topology;
 
-	DRM_DEBUG_KMS("num_lm: %d num_enc: %d num_intf: %d\n",
-		      reqs->topology.num_lm, reqs->topology.num_enc,
+	DRM_DEBUG_KMS("num_lm: %d num_dsc: %d num_intf: %d\n",
+		      reqs->topology.num_lm, reqs->topology.num_dsc,
 		      reqs->topology.num_intf);
 
 	return 0;
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index d4e0ef608950..74626a271f46 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -82,14 +82,12 @@  enum msm_event_wait {
 /**
  * struct msm_display_topology - defines a display topology pipeline
  * @num_lm:       number of layer mixers used
- * @num_enc:      number of compression encoder blocks used
  * @num_intf:     number of interfaces the panel is mounted on
  * @num_dspp:     number of dspp blocks used
  * @num_dsc:      number of Display Stream Compression (DSC) blocks used
  */
 struct msm_display_topology {
 	u32 num_lm;
-	u32 num_enc;
 	u32 num_intf;
 	u32 num_dspp;
 	u32 num_dsc;