diff mbox series

[6/6] drm/i915: Allow bigjoiner for MST

Message ID 20240308131146.32714-7-stanislav.lisovskiy@intel.com (mailing list archive)
State New, archived
Headers show
Series Bigjoiner refactoring | expand

Commit Message

Lisovskiy, Stanislav March 8, 2024, 1:11 p.m. UTC
From: Vidya Srinivas <vidya.srinivas@intel.com>

We need bigjoiner support with MST functionality
for MST monitor resolutions > 5K to work.
Adding support for the same.

v2: Addressed review comments from Jani.
Revert rejection of MST bigjoiner modes and add
functionality

v3: Fixed pipe_mismatch WARN for mst_master_transcoder
Credits-to: Manasi Navare <navaremanasi@chromium.org>

Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Reviewed-by: Manasi Navare <navaremanasi@chromium.org>
---
 drivers/gpu/drm/i915/display/intel_ddi.c    |  6 ++++--
 drivers/gpu/drm/i915/display/intel_dp_mst.c | 17 +++++++++--------
 2 files changed, 13 insertions(+), 10 deletions(-)

Comments

Manasi Navare March 13, 2024, 4:48 a.m. UTC | #1
Now when we enable bigjoiner for MST, in MST case
intel_ddi_post_disable_hdmi_or_sst() function wont get called,
Do we need similar changes for MST case to loop over the joined pipes
in MST bigjoiner case?

Manasi

On Fri, Mar 8, 2024 at 5:12 AM Stanislav Lisovskiy
<stanislav.lisovskiy@intel.com> wrote:
>
> From: Vidya Srinivas <vidya.srinivas@intel.com>
>
> We need bigjoiner support with MST functionality
> for MST monitor resolutions > 5K to work.
> Adding support for the same.
>
> v2: Addressed review comments from Jani.
> Revert rejection of MST bigjoiner modes and add
> functionality
>
> v3: Fixed pipe_mismatch WARN for mst_master_transcoder
> Credits-to: Manasi Navare <navaremanasi@chromium.org>
>
> Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
> Reviewed-by: Manasi Navare <navaremanasi@chromium.org>
> ---
>  drivers/gpu/drm/i915/display/intel_ddi.c    |  6 ++++--
>  drivers/gpu/drm/i915/display/intel_dp_mst.c | 17 +++++++++--------
>  2 files changed, 13 insertions(+), 10 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 3756975bd561c..3bf8941107473 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -3924,9 +3924,11 @@ static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
>                 pipe_config->lane_count =
>                         ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1;
>
> -               if (DISPLAY_VER(dev_priv) >= 12)
> -                       pipe_config->mst_master_transcoder =
> +               if (DISPLAY_VER(dev_priv) >= 12) {
> +                       if (!intel_crtc_is_bigjoiner_slave(pipe_config))
> +                               pipe_config->mst_master_transcoder =
>                                         REG_FIELD_GET(TRANS_DDI_MST_TRANSPORT_SELECT_MASK, temp);
> +               }
>
>                 intel_cpu_transcoder_get_m1_n1(crtc, cpu_transcoder,
>                                                &pipe_config->dp_m_n);
> diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> index 53aec023ce92f..3e6e2cd08d3ab 100644
> --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> @@ -525,6 +525,7 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
>  {
>         struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
>         struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state);
> +       struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
>         struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
>         struct intel_dp *intel_dp = &intel_mst->primary->dp;
>         const struct intel_connector *connector =
> @@ -542,6 +543,10 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
>         if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
>                 return -EINVAL;
>
> +       if (intel_dp_need_bigjoiner(intel_dp, adjusted_mode->crtc_hdisplay,
> +                                   adjusted_mode->crtc_clock))
> +               pipe_config->bigjoiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
> +
>         pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB;
>         pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
>         pipe_config->has_pch_encoder = false;
> @@ -1330,12 +1335,6 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
>          *   corresponding link capabilities of the sink) in case the
>          *   stream is uncompressed for it by the last branch device.
>          */
> -       if (mode_rate > max_rate || mode->clock > max_dotclk ||
> -           drm_dp_calc_pbn_mode(mode->clock, min_bpp << 4) > port->full_pbn) {
> -               *status = MODE_CLOCK_HIGH;
> -               return 0;
> -       }
> -
>         if (mode->clock < 10000) {
>                 *status = MODE_CLOCK_LOW;
>                 return 0;
> @@ -1349,8 +1348,10 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
>         if (intel_dp_need_bigjoiner(intel_dp, mode->hdisplay, target_clock)) {
>                 bigjoiner = true;
>                 max_dotclk *= 2;
> +       }
>
> -               /* TODO: add support for bigjoiner */
> +       if (mode_rate > max_rate || mode->clock > max_dotclk ||
> +           drm_dp_calc_pbn_mode(mode->clock, min_bpp << 4) > port->full_pbn) {
>                 *status = MODE_CLOCK_HIGH;
>                 return 0;
>         }
> @@ -1397,7 +1398,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
>                 return 0;
>         }
>
> -       *status = intel_mode_valid_max_plane_size(dev_priv, mode, false);
> +       *status = intel_mode_valid_max_plane_size(dev_priv, mode, bigjoiner);
>         return 0;
>  }
>
> --
> 2.37.3
>
Lisovskiy, Stanislav March 13, 2024, 10:02 a.m. UTC | #2
On Tue, Mar 12, 2024 at 09:48:33PM -0700, Manasi Navare wrote:
> Now when we enable bigjoiner for MST, in MST case
> intel_ddi_post_disable_hdmi_or_sst() function wont get called,
> Do we need similar changes for MST case to loop over the joined pipes
> in MST bigjoiner case?
> 
> Manasi

Hi Manasi, check now my latest series, that should handle this.


Stan

> 
> On Fri, Mar 8, 2024 at 5:12 AM Stanislav Lisovskiy
> <stanislav.lisovskiy@intel.com> wrote:
> >
> > From: Vidya Srinivas <vidya.srinivas@intel.com>
> >
> > We need bigjoiner support with MST functionality
> > for MST monitor resolutions > 5K to work.
> > Adding support for the same.
> >
> > v2: Addressed review comments from Jani.
> > Revert rejection of MST bigjoiner modes and add
> > functionality
> >
> > v3: Fixed pipe_mismatch WARN for mst_master_transcoder
> > Credits-to: Manasi Navare <navaremanasi@chromium.org>
> >
> > Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
> > Reviewed-by: Manasi Navare <navaremanasi@chromium.org>
> > ---
> >  drivers/gpu/drm/i915/display/intel_ddi.c    |  6 ++++--
> >  drivers/gpu/drm/i915/display/intel_dp_mst.c | 17 +++++++++--------
> >  2 files changed, 13 insertions(+), 10 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
> > index 3756975bd561c..3bf8941107473 100644
> > --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> > @@ -3924,9 +3924,11 @@ static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
> >                 pipe_config->lane_count =
> >                         ((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1;
> >
> > -               if (DISPLAY_VER(dev_priv) >= 12)
> > -                       pipe_config->mst_master_transcoder =
> > +               if (DISPLAY_VER(dev_priv) >= 12) {
> > +                       if (!intel_crtc_is_bigjoiner_slave(pipe_config))
> > +                               pipe_config->mst_master_transcoder =
> >                                         REG_FIELD_GET(TRANS_DDI_MST_TRANSPORT_SELECT_MASK, temp);
> > +               }
> >
> >                 intel_cpu_transcoder_get_m1_n1(crtc, cpu_transcoder,
> >                                                &pipe_config->dp_m_n);
> > diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > index 53aec023ce92f..3e6e2cd08d3ab 100644
> > --- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > +++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
> > @@ -525,6 +525,7 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
> >  {
> >         struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
> >         struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state);
> > +       struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
> >         struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
> >         struct intel_dp *intel_dp = &intel_mst->primary->dp;
> >         const struct intel_connector *connector =
> > @@ -542,6 +543,10 @@ static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
> >         if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
> >                 return -EINVAL;
> >
> > +       if (intel_dp_need_bigjoiner(intel_dp, adjusted_mode->crtc_hdisplay,
> > +                                   adjusted_mode->crtc_clock))
> > +               pipe_config->bigjoiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
> > +
> >         pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB;
> >         pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
> >         pipe_config->has_pch_encoder = false;
> > @@ -1330,12 +1335,6 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
> >          *   corresponding link capabilities of the sink) in case the
> >          *   stream is uncompressed for it by the last branch device.
> >          */
> > -       if (mode_rate > max_rate || mode->clock > max_dotclk ||
> > -           drm_dp_calc_pbn_mode(mode->clock, min_bpp << 4) > port->full_pbn) {
> > -               *status = MODE_CLOCK_HIGH;
> > -               return 0;
> > -       }
> > -
> >         if (mode->clock < 10000) {
> >                 *status = MODE_CLOCK_LOW;
> >                 return 0;
> > @@ -1349,8 +1348,10 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
> >         if (intel_dp_need_bigjoiner(intel_dp, mode->hdisplay, target_clock)) {
> >                 bigjoiner = true;
> >                 max_dotclk *= 2;
> > +       }
> >
> > -               /* TODO: add support for bigjoiner */
> > +       if (mode_rate > max_rate || mode->clock > max_dotclk ||
> > +           drm_dp_calc_pbn_mode(mode->clock, min_bpp << 4) > port->full_pbn) {
> >                 *status = MODE_CLOCK_HIGH;
> >                 return 0;
> >         }
> > @@ -1397,7 +1398,7 @@ intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
> >                 return 0;
> >         }
> >
> > -       *status = intel_mode_valid_max_plane_size(dev_priv, mode, false);
> > +       *status = intel_mode_valid_max_plane_size(dev_priv, mode, bigjoiner);
> >         return 0;
> >  }
> >
> > --
> > 2.37.3
> >
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 3756975bd561c..3bf8941107473 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3924,9 +3924,11 @@  static void intel_ddi_read_func_ctl(struct intel_encoder *encoder,
 		pipe_config->lane_count =
 			((temp & DDI_PORT_WIDTH_MASK) >> DDI_PORT_WIDTH_SHIFT) + 1;
 
-		if (DISPLAY_VER(dev_priv) >= 12)
-			pipe_config->mst_master_transcoder =
+		if (DISPLAY_VER(dev_priv) >= 12) {
+			if (!intel_crtc_is_bigjoiner_slave(pipe_config))
+				pipe_config->mst_master_transcoder =
 					REG_FIELD_GET(TRANS_DDI_MST_TRANSPORT_SELECT_MASK, temp);
+		}
 
 		intel_cpu_transcoder_get_m1_n1(crtc, cpu_transcoder,
 					       &pipe_config->dp_m_n);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 53aec023ce92f..3e6e2cd08d3ab 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -525,6 +525,7 @@  static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	struct intel_atomic_state *state = to_intel_atomic_state(conn_state->state);
+	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
 	struct intel_dp_mst_encoder *intel_mst = enc_to_mst(encoder);
 	struct intel_dp *intel_dp = &intel_mst->primary->dp;
 	const struct intel_connector *connector =
@@ -542,6 +543,10 @@  static int intel_dp_mst_compute_config(struct intel_encoder *encoder,
 	if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)
 		return -EINVAL;
 
+	if (intel_dp_need_bigjoiner(intel_dp, adjusted_mode->crtc_hdisplay,
+				    adjusted_mode->crtc_clock))
+		pipe_config->bigjoiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
+
 	pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB;
 	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
 	pipe_config->has_pch_encoder = false;
@@ -1330,12 +1335,6 @@  intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
 	 *   corresponding link capabilities of the sink) in case the
 	 *   stream is uncompressed for it by the last branch device.
 	 */
-	if (mode_rate > max_rate || mode->clock > max_dotclk ||
-	    drm_dp_calc_pbn_mode(mode->clock, min_bpp << 4) > port->full_pbn) {
-		*status = MODE_CLOCK_HIGH;
-		return 0;
-	}
-
 	if (mode->clock < 10000) {
 		*status = MODE_CLOCK_LOW;
 		return 0;
@@ -1349,8 +1348,10 @@  intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
 	if (intel_dp_need_bigjoiner(intel_dp, mode->hdisplay, target_clock)) {
 		bigjoiner = true;
 		max_dotclk *= 2;
+	}
 
-		/* TODO: add support for bigjoiner */
+	if (mode_rate > max_rate || mode->clock > max_dotclk ||
+	    drm_dp_calc_pbn_mode(mode->clock, min_bpp << 4) > port->full_pbn) {
 		*status = MODE_CLOCK_HIGH;
 		return 0;
 	}
@@ -1397,7 +1398,7 @@  intel_dp_mst_mode_valid_ctx(struct drm_connector *connector,
 		return 0;
 	}
 
-	*status = intel_mode_valid_max_plane_size(dev_priv, mode, false);
+	*status = intel_mode_valid_max_plane_size(dev_priv, mode, bigjoiner);
 	return 0;
 }