diff mbox series

[04/12] drm/i915/display: Use joined pipes in dsc helpers for slices, bpp

Message ID 20240718081803.3338564-5-ankit.k.nautiyal@intel.com (mailing list archive)
State New, archived
Headers show
Series Ultrajoiner basic functionality series | expand

Commit Message

Ankit Nautiyal July 18, 2024, 8:17 a.m. UTC
In preparation of ultrajoiner, use number of joined pipes in the dsc
helpers to compute dsc slices and max compressed bpp, instead of using
the joiner flag.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c     | 27 +++++++++++----------
 drivers/gpu/drm/i915/display/intel_dp.h     |  4 +--
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 11 +++++----
 3 files changed, 22 insertions(+), 20 deletions(-)

Comments

Kandpal, Suraj July 31, 2024, 5:10 a.m. UTC | #1
> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces@lists.freedesktop.org> On Behalf Of Ankit
> Nautiyal
> Sent: Thursday, July 18, 2024 1:48 PM
> To: intel-gfx@lists.freedesktop.org
> Cc: Lisovskiy, Stanislav <stanislav.lisovskiy@intel.com>; Saarinen, Jani
> <jani.saarinen@intel.com>; ville.syrjala@linux.intel.com
> Subject: [PATCH 04/12] drm/i915/display: Use joined pipes in dsc helpers for
> slices, bpp
> 
> In preparation of ultrajoiner, use number of joined pipes in the dsc helpers to
> compute dsc slices and max compressed bpp, instead of using the joiner flag.
> 

LGTM,
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>

> Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_dp.c     | 27 +++++++++++----------
>  drivers/gpu/drm/i915/display/intel_dp.h     |  4 +--
>  drivers/gpu/drm/i915/display/intel_dp_mst.c | 11 +++++----
>  3 files changed, 22 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.c
> b/drivers/gpu/drm/i915/display/intel_dp.c
> index 320d8b6d1bce..ff4c123de0ed 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp.c
> @@ -752,14 +752,14 @@ u32 intel_dp_dsc_nearest_valid_bpp(struct
> drm_i915_private *i915, u32 bpp, u32 p  static
>  u32 get_max_compressed_bpp_with_joiner(struct drm_i915_private *i915,
>  				       u32 mode_clock, u32 mode_hdisplay,
> -				       bool bigjoiner)
> +				       enum intel_joiner_pipe_count
> joined_pipes)
>  {
>  	u32 max_bpp_small_joiner_ram;
> 
>  	/* Small Joiner Check: output bpp <= joiner RAM (bits) / Horiz. width */
>  	max_bpp_small_joiner_ram = small_joiner_ram_size_bits(i915) /
> mode_hdisplay;
> 
> -	if (bigjoiner) {
> +	if (joined_pipes == INTEL_PIPE_JOINER_BIG) {
>  		int bigjoiner_interface_bits = DISPLAY_VER(i915) >= 14 ? 36 :
> 24;
>  		/* With bigjoiner multiple dsc engines are used in parallel so
> PPC is 2 */
>  		int ppc = 2;
> @@ -778,7 +778,7 @@ u32 get_max_compressed_bpp_with_joiner(struct
> drm_i915_private *i915,
>  u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
>  					u32 link_clock, u32 lane_count,
>  					u32 mode_clock, u32 mode_hdisplay,
> -					bool bigjoiner,
> +					enum intel_joiner_pipe_count
> joined_pipes,
>  					enum intel_output_format
> output_format,
>  					u32 pipe_bpp,
>  					u32 timeslots)
> @@ -824,7 +824,7 @@ u16 intel_dp_dsc_get_max_compressed_bpp(struct
> drm_i915_private *i915,
>  				intel_dp_mode_to_fec_clock(mode_clock));
> 
>  	joiner_max_bpp = get_max_compressed_bpp_with_joiner(i915,
> mode_clock,
> -							    mode_hdisplay,
> bigjoiner);
> +							    mode_hdisplay,
> joined_pipes);
>  	bits_per_pixel = min(bits_per_pixel, joiner_max_bpp);
> 
>  	bits_per_pixel = intel_dp_dsc_nearest_valid_bpp(i915, bits_per_pixel,
> pipe_bpp); @@ -834,7 +834,7 @@ u16
> intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
> 
>  u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
>  				int mode_clock, int mode_hdisplay,
> -				bool bigjoiner)
> +				enum intel_joiner_pipe_count joined_pipes)
>  {
>  	struct drm_i915_private *i915 = to_i915(connector->base.dev);
>  	u8 min_slice_count, i;
> @@ -868,14 +868,14 @@ u8 intel_dp_dsc_get_slice_count(const struct
> intel_connector *connector,
> 
>  	/* Find the closest match to the valid slice count values */
>  	for (i = 0; i < ARRAY_SIZE(valid_dsc_slicecount); i++) {
> -		u8 test_slice_count = valid_dsc_slicecount[i] << bigjoiner;
> +		u8 test_slice_count = valid_dsc_slicecount[i] << (joined_pipes /
> 2);
> 
>  		if (test_slice_count >
>  		    drm_dp_dsc_sink_max_slice_count(connector->dp.dsc_dpcd,
> false))
>  			break;
> 
>  		/* big joiner needs small joiner to be enabled */
> -		if (bigjoiner && test_slice_count < 4)
> +		if (joined_pipes == INTEL_PIPE_JOINER_BIG && test_slice_count
> < 4)
>  			continue;
> 
>  		if (min_slice_count <= test_slice_count) @@ -1201,7 +1201,7
> @@ intel_dp_mode_valid(struct drm_connector *_connector,
>  	u16 dsc_max_compressed_bpp = 0;
>  	u8 dsc_slice_count = 0;
>  	enum drm_mode_status status;
> -	bool dsc = false, joiner = false;
> +	bool dsc = false;
>  	enum intel_joiner_pipe_count joined_pipes =
> INTEL_PIPE_JOINER_NONE;
> 
>  	status = intel_cpu_transcoder_mode_valid(dev_priv, mode); @@ -
> 1225,7 +1225,6 @@ intel_dp_mode_valid(struct drm_connector *_connector,
> 
>  	if (intel_dp_need_joiner(intel_dp, connector,
>  				 mode->hdisplay, target_clock)) {
> -		joiner = true;
>  		joined_pipes = INTEL_PIPE_JOINER_BIG;
>  		max_dotclk *= INTEL_PIPE_JOINER_BIG;
>  	}
> @@ -1272,14 +1271,14 @@ intel_dp_mode_valid(struct drm_connector
> *_connector,
>  								    max_lanes,
>  								    target_clock,
>  								    mode-
> >hdisplay,
> -								    joiner,
> +
> joined_pipes,
> 
> output_format,
>  								    pipe_bpp,
> 64);
>  			dsc_slice_count =
>  				intel_dp_dsc_get_slice_count(connector,
>  							     target_clock,
>  							     mode->hdisplay,
> -							     joiner);
> +							     joined_pipes);
>  		}
> 
>  		dsc = dsc_max_compressed_bpp && dsc_slice_count; @@ -
> 1995,6 +1994,7 @@ static int dsc_compute_compressed_bpp(struct intel_dp
> *intel_dp,
>  	int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
>  	int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
>  	int dsc_joiner_max_bpp;
> +	int joined_pipes = intel_joiner_num_pipes(pipe_config);
> 
>  	dsc_src_min_bpp = dsc_src_min_compressed_bpp();
>  	dsc_sink_min_bpp =
> intel_dp_dsc_sink_min_compressed_bpp(pipe_config);
> @@ -2009,7 +2009,7 @@ static int dsc_compute_compressed_bpp(struct
> intel_dp *intel_dp,
> 
>  	dsc_joiner_max_bpp = get_max_compressed_bpp_with_joiner(i915,
> adjusted_mode->clock,
> 
> 	adjusted_mode->hdisplay,
> -								pipe_config-
> >joiner_pipes);
> +								joined_pipes);
>  	dsc_max_bpp = min(dsc_max_bpp, dsc_joiner_max_bpp);
>  	dsc_max_bpp = min(dsc_max_bpp, to_bpp_int(limits-
> >link.max_bpp_x16));
> 
> @@ -2194,6 +2194,7 @@ int intel_dp_dsc_compute_config(struct intel_dp
> *intel_dp,
>  		to_intel_connector(conn_state->connector);
>  	const struct drm_display_mode *adjusted_mode =
>  		&pipe_config->hw.adjusted_mode;
> +	int joined_pipes = intel_joiner_num_pipes(pipe_config);
>  	int ret;
> 
>  	pipe_config->fec_enable = pipe_config->fec_enable || @@ -2243,7
> +2244,7 @@ int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
>  			intel_dp_dsc_get_slice_count(connector,
>  						     adjusted_mode->crtc_clock,
>  						     adjusted_mode-
> >crtc_hdisplay,
> -						     pipe_config->joiner_pipes);
> +						     joined_pipes);
>  		if (!dsc_dp_slice_count) {
>  			drm_dbg_kms(&dev_priv->drm,
>  				    "Compressed Slice Count not supported\n");
> diff --git a/drivers/gpu/drm/i915/display/intel_dp.h
> b/drivers/gpu/drm/i915/display/intel_dp.h
> index a8116210c618..acd05dc7b8ad 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp.h
> +++ b/drivers/gpu/drm/i915/display/intel_dp.h
> @@ -142,7 +142,7 @@ int intel_dp_dsc_compute_max_bpp(const struct
> intel_connector *connector,
>  u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
>  					u32 link_clock, u32 lane_count,
>  					u32 mode_clock, u32 mode_hdisplay,
> -					bool bigjoiner,
> +					enum intel_joiner_pipe_count
> joined_pipes,
>  					enum intel_output_format
> output_format,
>  					u32 pipe_bpp,
>  					u32 timeslots);
> @@ -152,7 +152,7 @@ int intel_dp_dsc_sink_max_compressed_bpp(const
> struct intel_connector *connector
>  					 int bpc);
>  u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
>  				int mode_clock, int mode_hdisplay,
> -				bool bigjoiner);
> +				enum intel_joiner_pipe_count joined_pipes);
>  bool intel_dp_need_joiner(struct intel_dp *intel_dp,
>  			  struct intel_connector *connector,
>  			  int hdisplay, int clock);
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 3f45ac7ca4d5..31a2acb7fa11 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -101,11 +101,13 @@ static int intel_dp_mst_bw_overhead(const struct
> intel_crtc_state *crtc_state,
>  	flags |= crtc_state->fec_enable ? DRM_DP_BW_OVERHEAD_FEC : 0;
> 
>  	if (dsc) {
> +		int joined_pipes = intel_joiner_num_pipes(crtc_state);
> +
>  		flags |= DRM_DP_BW_OVERHEAD_DSC;
>  		dsc_slice_count = intel_dp_dsc_get_slice_count(connector,
>  							       adjusted_mode-
> >clock,
>  							       adjusted_mode-
> >hdisplay,
> -							       crtc_state-
> >joiner_pipes);
> +							       joined_pipes);
>  	}
> 
>  	overhead = drm_dp_bw_overhead(crtc_state->lane_count,
> @@ -1393,7 +1395,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector
> *connector,
>  	int max_dotclk = to_i915(connector->dev)-
> >display.cdclk.max_dotclk_freq;
>  	int max_rate, mode_rate, max_lanes, max_link_clock;
>  	int ret;
> -	bool dsc = false, joiner = false;
> +	bool dsc = false;
>  	u16 dsc_max_compressed_bpp = 0;
>  	u8 dsc_slice_count = 0;
>  	int target_clock = mode->clock;
> @@ -1439,7 +1441,6 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector
> *connector,
>  	 */
>  	if (intel_dp_need_joiner(intel_dp, intel_connector,
>  				 mode->hdisplay, target_clock)) {
> -		joiner = true;
>  		joined_pipes = INTEL_PIPE_JOINER_BIG;
>  		max_dotclk *= INTEL_PIPE_JOINER_BIG;
>  	}
> @@ -1468,14 +1469,14 @@ intel_dp_mst_mode_valid_ctx(struct
> drm_connector *connector,
>  								    max_lanes,
>  								    target_clock,
>  								    mode-
> >hdisplay,
> -								    joiner,
> +
> joined_pipes,
> 
> INTEL_OUTPUT_FORMAT_RGB,
>  								    pipe_bpp,
> 64);
>  			dsc_slice_count =
>  				intel_dp_dsc_get_slice_count(intel_connector,
>  							     target_clock,
>  							     mode->hdisplay,
> -							     joiner);
> +							     joined_pipes);
>  		}
> 
>  		dsc = dsc_max_compressed_bpp && dsc_slice_count;
> --
> 2.45.2
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 320d8b6d1bce..ff4c123de0ed 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -752,14 +752,14 @@  u32 intel_dp_dsc_nearest_valid_bpp(struct drm_i915_private *i915, u32 bpp, u32 p
 static
 u32 get_max_compressed_bpp_with_joiner(struct drm_i915_private *i915,
 				       u32 mode_clock, u32 mode_hdisplay,
-				       bool bigjoiner)
+				       enum intel_joiner_pipe_count joined_pipes)
 {
 	u32 max_bpp_small_joiner_ram;
 
 	/* Small Joiner Check: output bpp <= joiner RAM (bits) / Horiz. width */
 	max_bpp_small_joiner_ram = small_joiner_ram_size_bits(i915) / mode_hdisplay;
 
-	if (bigjoiner) {
+	if (joined_pipes == INTEL_PIPE_JOINER_BIG) {
 		int bigjoiner_interface_bits = DISPLAY_VER(i915) >= 14 ? 36 : 24;
 		/* With bigjoiner multiple dsc engines are used in parallel so PPC is 2 */
 		int ppc = 2;
@@ -778,7 +778,7 @@  u32 get_max_compressed_bpp_with_joiner(struct drm_i915_private *i915,
 u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
 					u32 link_clock, u32 lane_count,
 					u32 mode_clock, u32 mode_hdisplay,
-					bool bigjoiner,
+					enum intel_joiner_pipe_count joined_pipes,
 					enum intel_output_format output_format,
 					u32 pipe_bpp,
 					u32 timeslots)
@@ -824,7 +824,7 @@  u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
 				intel_dp_mode_to_fec_clock(mode_clock));
 
 	joiner_max_bpp = get_max_compressed_bpp_with_joiner(i915, mode_clock,
-							    mode_hdisplay, bigjoiner);
+							    mode_hdisplay, joined_pipes);
 	bits_per_pixel = min(bits_per_pixel, joiner_max_bpp);
 
 	bits_per_pixel = intel_dp_dsc_nearest_valid_bpp(i915, bits_per_pixel, pipe_bpp);
@@ -834,7 +834,7 @@  u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
 
 u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
 				int mode_clock, int mode_hdisplay,
-				bool bigjoiner)
+				enum intel_joiner_pipe_count joined_pipes)
 {
 	struct drm_i915_private *i915 = to_i915(connector->base.dev);
 	u8 min_slice_count, i;
@@ -868,14 +868,14 @@  u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
 
 	/* Find the closest match to the valid slice count values */
 	for (i = 0; i < ARRAY_SIZE(valid_dsc_slicecount); i++) {
-		u8 test_slice_count = valid_dsc_slicecount[i] << bigjoiner;
+		u8 test_slice_count = valid_dsc_slicecount[i] << (joined_pipes / 2);
 
 		if (test_slice_count >
 		    drm_dp_dsc_sink_max_slice_count(connector->dp.dsc_dpcd, false))
 			break;
 
 		/* big joiner needs small joiner to be enabled */
-		if (bigjoiner && test_slice_count < 4)
+		if (joined_pipes == INTEL_PIPE_JOINER_BIG && test_slice_count < 4)
 			continue;
 
 		if (min_slice_count <= test_slice_count)
@@ -1201,7 +1201,7 @@  intel_dp_mode_valid(struct drm_connector *_connector,
 	u16 dsc_max_compressed_bpp = 0;
 	u8 dsc_slice_count = 0;
 	enum drm_mode_status status;
-	bool dsc = false, joiner = false;
+	bool dsc = false;
 	enum intel_joiner_pipe_count joined_pipes = INTEL_PIPE_JOINER_NONE;
 
 	status = intel_cpu_transcoder_mode_valid(dev_priv, mode);
@@ -1225,7 +1225,6 @@  intel_dp_mode_valid(struct drm_connector *_connector,
 
 	if (intel_dp_need_joiner(intel_dp, connector,
 				 mode->hdisplay, target_clock)) {
-		joiner = true;
 		joined_pipes = INTEL_PIPE_JOINER_BIG;
 		max_dotclk *= INTEL_PIPE_JOINER_BIG;
 	}
@@ -1272,14 +1271,14 @@  intel_dp_mode_valid(struct drm_connector *_connector,
 								    max_lanes,
 								    target_clock,
 								    mode->hdisplay,
-								    joiner,
+								    joined_pipes,
 								    output_format,
 								    pipe_bpp, 64);
 			dsc_slice_count =
 				intel_dp_dsc_get_slice_count(connector,
 							     target_clock,
 							     mode->hdisplay,
-							     joiner);
+							     joined_pipes);
 		}
 
 		dsc = dsc_max_compressed_bpp && dsc_slice_count;
@@ -1995,6 +1994,7 @@  static int dsc_compute_compressed_bpp(struct intel_dp *intel_dp,
 	int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
 	int dsc_src_max_bpp, dsc_sink_max_bpp, dsc_max_bpp;
 	int dsc_joiner_max_bpp;
+	int joined_pipes = intel_joiner_num_pipes(pipe_config);
 
 	dsc_src_min_bpp = dsc_src_min_compressed_bpp();
 	dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(pipe_config);
@@ -2009,7 +2009,7 @@  static int dsc_compute_compressed_bpp(struct intel_dp *intel_dp,
 
 	dsc_joiner_max_bpp = get_max_compressed_bpp_with_joiner(i915, adjusted_mode->clock,
 								adjusted_mode->hdisplay,
-								pipe_config->joiner_pipes);
+								joined_pipes);
 	dsc_max_bpp = min(dsc_max_bpp, dsc_joiner_max_bpp);
 	dsc_max_bpp = min(dsc_max_bpp, to_bpp_int(limits->link.max_bpp_x16));
 
@@ -2194,6 +2194,7 @@  int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 		to_intel_connector(conn_state->connector);
 	const struct drm_display_mode *adjusted_mode =
 		&pipe_config->hw.adjusted_mode;
+	int joined_pipes = intel_joiner_num_pipes(pipe_config);
 	int ret;
 
 	pipe_config->fec_enable = pipe_config->fec_enable ||
@@ -2243,7 +2244,7 @@  int intel_dp_dsc_compute_config(struct intel_dp *intel_dp,
 			intel_dp_dsc_get_slice_count(connector,
 						     adjusted_mode->crtc_clock,
 						     adjusted_mode->crtc_hdisplay,
-						     pipe_config->joiner_pipes);
+						     joined_pipes);
 		if (!dsc_dp_slice_count) {
 			drm_dbg_kms(&dev_priv->drm,
 				    "Compressed Slice Count not supported\n");
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index a8116210c618..acd05dc7b8ad 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -142,7 +142,7 @@  int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector,
 u16 intel_dp_dsc_get_max_compressed_bpp(struct drm_i915_private *i915,
 					u32 link_clock, u32 lane_count,
 					u32 mode_clock, u32 mode_hdisplay,
-					bool bigjoiner,
+					enum intel_joiner_pipe_count joined_pipes,
 					enum intel_output_format output_format,
 					u32 pipe_bpp,
 					u32 timeslots);
@@ -152,7 +152,7 @@  int intel_dp_dsc_sink_max_compressed_bpp(const struct intel_connector *connector
 					 int bpc);
 u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
 				int mode_clock, int mode_hdisplay,
-				bool bigjoiner);
+				enum intel_joiner_pipe_count joined_pipes);
 bool intel_dp_need_joiner(struct intel_dp *intel_dp,
 			  struct intel_connector *connector,
 			  int hdisplay, int clock);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 3f45ac7ca4d5..31a2acb7fa11 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -101,11 +101,13 @@  static int intel_dp_mst_bw_overhead(const struct intel_crtc_state *crtc_state,
 	flags |= crtc_state->fec_enable ? DRM_DP_BW_OVERHEAD_FEC : 0;
 
 	if (dsc) {
+		int joined_pipes = intel_joiner_num_pipes(crtc_state);
+
 		flags |= DRM_DP_BW_OVERHEAD_DSC;
 		dsc_slice_count = intel_dp_dsc_get_slice_count(connector,
 							       adjusted_mode->clock,
 							       adjusted_mode->hdisplay,
-							       crtc_state->joiner_pipes);
+							       joined_pipes);
 	}
 
 	overhead = drm_dp_bw_overhead(crtc_state->lane_count,
@@ -1393,7 +1395,7 @@  intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
 	int max_dotclk = to_i915(connector->dev)->display.cdclk.max_dotclk_freq;
 	int max_rate, mode_rate, max_lanes, max_link_clock;
 	int ret;
-	bool dsc = false, joiner = false;
+	bool dsc = false;
 	u16 dsc_max_compressed_bpp = 0;
 	u8 dsc_slice_count = 0;
 	int target_clock = mode->clock;
@@ -1439,7 +1441,6 @@  intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
 	 */
 	if (intel_dp_need_joiner(intel_dp, intel_connector,
 				 mode->hdisplay, target_clock)) {
-		joiner = true;
 		joined_pipes = INTEL_PIPE_JOINER_BIG;
 		max_dotclk *= INTEL_PIPE_JOINER_BIG;
 	}
@@ -1468,14 +1469,14 @@  intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
 								    max_lanes,
 								    target_clock,
 								    mode->hdisplay,
-								    joiner,
+								    joined_pipes,
 								    INTEL_OUTPUT_FORMAT_RGB,
 								    pipe_bpp, 64);
 			dsc_slice_count =
 				intel_dp_dsc_get_slice_count(intel_connector,
 							     target_clock,
 							     mode->hdisplay,
-							     joiner);
+							     joined_pipes);
 		}
 
 		dsc = dsc_max_compressed_bpp && dsc_slice_count;