From: Sagar Arun Kamble <sagar.a.kam...@intel.com>

This patch will inform GuC SLPC about changes in the refresh rate
due to Seamless DRRS. Refresh rate changes due to Static DRRS will
be notified via commit path.

Signed-off-by: Sagar Arun Kamble <sagar.a.kam...@intel.com>
Acked-by: Tom O'Rourke <Tom.O'rou...@intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c   |  2 ++
 drivers/gpu/drm/i915/intel_slpc.c | 22 ++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_slpc.h |  1 +
 3 files changed, 25 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e2bea710..5100e8c 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5434,6 +5434,8 @@ static void intel_dp_set_drrs_state(struct drm_device 
*dev, int refresh_rate)
        dev_priv->drrs.refresh_rate_type = index;
 
        DRM_DEBUG_KMS("eDP Refresh Rate set to : %dHz\n", refresh_rate);
+
+       intel_slpc_update_display_rr_info(dev, refresh_rate);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_slpc.c 
b/drivers/gpu/drm/i915/intel_slpc.c
index f5f7cad..c15ab19 100644
--- a/drivers/gpu/drm/i915/intel_slpc.c
+++ b/drivers/gpu/drm/i915/intel_slpc.c
@@ -317,3 +317,25 @@ int intel_slpc_update_display_mode_info(struct drm_device 
*dev)
 
        return 0;
 }
+
+int intel_slpc_update_display_rr_info(struct drm_device *dev, u32 refresh_rate)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       struct drm_crtc *crtc;
+       struct intel_display_pipe_basic_info *per_pipe_info;
+       struct intel_slpc_display_mode_event_params *display_params;
+
+       if (!HAS_SLPC(dev))
+               return -EINVAL;
+
+       display_params = &dev_priv->guc.slpc.display_mode_params;
+       crtc = dp_to_dig_port(dev_priv->drrs.dp)->base.base.crtc;
+
+       per_pipe_info = 
&display_params->per_pipe_info[to_intel_crtc(crtc)->pipe];
+       per_pipe_info->refresh_rate = refresh_rate;
+       per_pipe_info->vsync_ft_usec = 1000000 / refresh_rate;
+
+       host2guc_slpc_display_mode_change(dev_priv);
+
+       return 0;
+}
diff --git a/drivers/gpu/drm/i915/intel_slpc.h 
b/drivers/gpu/drm/i915/intel_slpc.h
index 18e551b..bb1d12e 100644
--- a/drivers/gpu/drm/i915/intel_slpc.h
+++ b/drivers/gpu/drm/i915/intel_slpc.h
@@ -153,5 +153,6 @@ int intel_slpc_disable(struct drm_device *dev);
 int intel_slpc_enable(struct drm_device *dev);
 int intel_slpc_reset(struct drm_device *dev);
 int intel_slpc_update_display_mode_info(struct drm_device *dev);
+int intel_slpc_update_display_rr_info(struct drm_device *dev, u32 
refresh_rate);
 
 #endif
-- 
1.9.1

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