1 files changed, 39 insertions, 4 deletions

diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c
index df1e14145747..035479e273be 100644
--- a/drivers/gpu/drm/i915/gvt/display.c
+++ b/drivers/gpu/drm/i915/gvt/display.c
@@ -198,7 +198,8 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 			SDE_PORTC_HOTPLUG_CPT |
 			SDE_PORTD_HOTPLUG_CPT);
 
-	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ||
+	    IS_COFFEELAKE(dev_priv)) {
 		vgpu_vreg_t(vgpu, SDEISR) &= ~(SDE_PORTA_HOTPLUG_SPT |
 				SDE_PORTE_HOTPLUG_SPT);
 		vgpu_vreg_t(vgpu, SKL_FUSE_STATUS) |=
@@ -273,7 +274,8 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 		vgpu_vreg_t(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED;
 	}
 
-	if ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) &&
+	if ((IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ||
+	     IS_COFFEELAKE(dev_priv)) &&
 			intel_vgpu_has_monitor_on_port(vgpu, PORT_E)) {
 		vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTE_HOTPLUG_SPT;
 	}
@@ -340,6 +342,7 @@ static int setup_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num,
 	port->dpcd->data_valid = true;
 	port->dpcd->data[DPCD_SINK_COUNT] = 0x1;
 	port->type = type;
+	port->id = resolution;
 
 	emulate_monitor_status_change(vgpu);
 
@@ -443,6 +446,36 @@ void intel_gvt_emulate_vblank(struct intel_gvt *gvt)
 }
 
 /**
+ * intel_vgpu_emulate_hotplug - trigger hotplug event for vGPU
+ * @vgpu: a vGPU
+ * @conncted: link state
+ *
+ * This function is used to trigger hotplug interrupt for vGPU
+ *
+ */
+void intel_vgpu_emulate_hotplug(struct intel_vgpu *vgpu, bool connected)
+{
+	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
+
+	/* TODO: add more platforms support */
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) {
+		if (connected) {
+			vgpu_vreg_t(vgpu, SFUSE_STRAP) |=
+				SFUSE_STRAP_DDID_DETECTED;
+			vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT;
+		} else {
+			vgpu_vreg_t(vgpu, SFUSE_STRAP) &=
+				~SFUSE_STRAP_DDID_DETECTED;
+			vgpu_vreg_t(vgpu, SDEISR) &= ~SDE_PORTD_HOTPLUG_CPT;
+		}
+		vgpu_vreg_t(vgpu, SDEIIR) |= SDE_PORTD_HOTPLUG_CPT;
+		vgpu_vreg_t(vgpu, PCH_PORT_HOTPLUG) |=
+				PORTD_HOTPLUG_STATUS_MASK;
+		intel_vgpu_trigger_virtual_event(vgpu, DP_D_HOTPLUG);
+	}
+}
+
+/**
  * intel_vgpu_clean_display - clean vGPU virtual display emulation
  * @vgpu: a vGPU
  *
@@ -453,7 +486,8 @@ void intel_vgpu_clean_display(struct intel_vgpu *vgpu)
 {
 	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
 
-	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ||
+	    IS_COFFEELAKE(dev_priv))
 		clean_virtual_dp_monitor(vgpu, PORT_D);
 	else
 		clean_virtual_dp_monitor(vgpu, PORT_B);
@@ -476,7 +510,8 @@ int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution)
 
 	intel_vgpu_init_i2c_edid(vgpu);
 
-	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv))
+	if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv) ||
+	    IS_COFFEELAKE(dev_priv))
 		return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D,
 						resolution);
 	else