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-rw-r--r--drivers/gpu/drm/i915/display/intel_display_debugfs.c1
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.c46
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp.h6
-rw-r--r--drivers/gpu/drm/i915/display/intel_dp_mst.c23
4 files changed, 40 insertions, 36 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
index ae3715f0f1d8..5923bbc232be 100644
--- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c
+++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c
@@ -1343,6 +1343,7 @@ static ssize_t i915_joiner_write(struct file *file,
switch (force_joined_pipes) {
case 0:
+ case 1:
case 2:
connector->force_joined_pipes = force_joined_pipes;
break;
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index a1a64758d30d..f2a2541c1091 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1264,17 +1264,30 @@ intel_dp_mode_valid_downstream(struct intel_connector *connector,
return MODE_OK;
}
-bool intel_dp_need_joiner(struct intel_dp *intel_dp,
- struct intel_connector *connector,
- int hdisplay, int clock)
+static
+bool intel_dp_needs_bigjoiner(struct intel_dp *intel_dp,
+ struct intel_connector *connector,
+ int hdisplay, int clock)
{
struct drm_i915_private *i915 = dp_to_i915(intel_dp);
if (!intel_dp_has_joiner(intel_dp))
return false;
- return clock > i915->display.cdclk.max_dotclk_freq || hdisplay > 5120 ||
- connector->force_joined_pipes == 2;
+ return clock > i915->display.cdclk.max_dotclk_freq || hdisplay > 5120;
+}
+
+int intel_dp_num_joined_pipes(struct intel_dp *intel_dp,
+ struct intel_connector *connector,
+ int hdisplay, int clock)
+{
+ if (connector->force_joined_pipes)
+ return connector->force_joined_pipes;
+
+ if (intel_dp_needs_bigjoiner(intel_dp, connector, hdisplay, clock))
+ return 2;
+
+ return 1;
}
bool intel_dp_has_dsc(const struct intel_connector *connector)
@@ -1311,7 +1324,7 @@ 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;
int num_joined_pipes;
status = intel_cpu_transcoder_mode_valid(dev_priv, mode);
@@ -1333,13 +1346,9 @@ intel_dp_mode_valid(struct drm_connector *_connector,
target_clock = fixed_mode->clock;
}
- if (intel_dp_need_joiner(intel_dp, connector,
- mode->hdisplay, target_clock)) {
- joiner = true;
- max_dotclk *= 2;
- }
-
- num_joined_pipes = joiner ? 2 : 1;
+ num_joined_pipes = intel_dp_num_joined_pipes(intel_dp, connector,
+ mode->hdisplay, target_clock);
+ max_dotclk *= num_joined_pipes;
if (target_clock > max_dotclk)
return MODE_CLOCK_HIGH;
@@ -2507,12 +2516,11 @@ intel_dp_compute_link_config(struct intel_encoder *encoder,
!intel_dp_supports_fec(intel_dp, connector, pipe_config))
return -EINVAL;
- if (intel_dp_need_joiner(intel_dp, connector,
- adjusted_mode->crtc_hdisplay,
- adjusted_mode->crtc_clock))
- pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
-
- num_joined_pipes = intel_crtc_num_joined_pipes(pipe_config);
+ num_joined_pipes = intel_dp_num_joined_pipes(intel_dp, connector,
+ adjusted_mode->crtc_hdisplay,
+ adjusted_mode->crtc_clock);
+ if (num_joined_pipes > 1)
+ pipe_config->joiner_pipes = GENMASK(crtc->pipe + num_joined_pipes - 1, crtc->pipe);
joiner_needs_dsc = intel_dp_joiner_needs_dsc(i915, num_joined_pipes);
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 3b869429e575..53d1217800ef 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -151,9 +151,9 @@ int intel_dp_dsc_sink_max_compressed_bpp(const struct intel_connector *connector
u8 intel_dp_dsc_get_slice_count(const struct intel_connector *connector,
int mode_clock, int mode_hdisplay,
int num_joined_pipes);
-bool intel_dp_need_joiner(struct intel_dp *intel_dp,
- struct intel_connector *connector,
- int hdisplay, int clock);
+int intel_dp_num_joined_pipes(struct intel_dp *intel_dp,
+ struct intel_connector *connector,
+ int hdisplay, int clock);
static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
{
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 732d7543ad06..4765bda154c1 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -581,12 +581,11 @@ 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_joiner(intel_dp, connector,
- adjusted_mode->crtc_hdisplay,
- adjusted_mode->crtc_clock))
- pipe_config->joiner_pipes = GENMASK(crtc->pipe + 1, crtc->pipe);
-
- num_joined_pipes = intel_crtc_num_joined_pipes(pipe_config);
+ num_joined_pipes = intel_dp_num_joined_pipes(intel_dp, connector,
+ adjusted_mode->crtc_hdisplay,
+ adjusted_mode->crtc_clock);
+ if (num_joined_pipes > 1)
+ pipe_config->joiner_pipes = GENMASK(crtc->pipe + num_joined_pipes - 1, crtc->pipe);
pipe_config->sink_format = INTEL_OUTPUT_FORMAT_RGB;
pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
@@ -1428,7 +1427,7 @@ 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;
@@ -1472,13 +1471,9 @@ 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 (intel_dp_need_joiner(intel_dp, intel_connector,
- mode->hdisplay, target_clock)) {
- joiner = true;
- max_dotclk *= 2;
- }
-
- num_joined_pipes = joiner ? 2 : 1;
+ num_joined_pipes = intel_dp_num_joined_pipes(intel_dp, intel_connector,
+ mode->hdisplay, target_clock);
+ max_dotclk *= num_joined_pipes;
ret = drm_modeset_lock(&mgr->base.lock, ctx);
if (ret)
generated by cgit v1.2.3 (git 2.39.1) at 2026-01-03 09:48:04 +0000