[PATCH 10/12] drm/i915/xe3lpd: Increase bigjoiner limitations

Matt Atwood matthew.s.atwood at intel.com
Fri Oct 18 20:49:39 UTC 2024


From: Suraj Kandpal <suraj.kandpal at intel.com>

With 6k resolution support for a single crtc being added
bigjoiner will only come into picture when hdisplay > 6144

Signed-off-by: Suraj Kandpal <suraj.kandpal at intel.com>
Signed-off-by: Matt Atwood <matthew.s.atwood at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index be21e2743801..0093bd43c712 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1314,14 +1314,16 @@ bool intel_dp_needs_joiner(struct intel_dp *intel_dp,
 			   int num_joined_pipes)
 {
 	struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+	int hdisplay_limit;
 
 	if (!intel_dp_has_joiner(intel_dp))
 		return false;
 
+	hdisplay_limit = DISPLAY_VER(i915) >= 30 ? 6144 : 5120;
 	num_joined_pipes /= 2;
 
 	return clock > num_joined_pipes * i915->display.cdclk.max_dotclk_freq ||
-	       hdisplay > num_joined_pipes * 5120;
+	       hdisplay > num_joined_pipes * hdisplay_limit;
 }
 
 int intel_dp_num_joined_pipes(struct intel_dp *intel_dp,
-- 
2.45.0



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