drm/i915: Introduce GEN8_DE_PORT_HOTPLUG()

Unify the BDW/BXT hotplug bits. BDW only has port A, but that
matches BXT port A so we can shar the same macro for both.

v2: Remember the gvt
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201028213323.5423-9-ville.syrjala@linux.intel.com

drivers/gpu/drm/i915/gvt/display.c

@@ -174,23 +174,23 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 
 	if (IS_BROXTON(dev_priv)) {
 		vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) &=
-			~(BXT_DE_PORT_HP_DDI(HPD_PORT_A) |
-			  BXT_DE_PORT_HP_DDI(HPD_PORT_B) |
-			  BXT_DE_PORT_HP_DDI(HPD_PORT_C));
+			~(GEN8_DE_PORT_HOTPLUG(HPD_PORT_A) |
+			  GEN8_DE_PORT_HOTPLUG(HPD_PORT_B) |
+			  GEN8_DE_PORT_HOTPLUG(HPD_PORT_C));
 
 		if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) {
 			vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |=
-				BXT_DE_PORT_HP_DDI(HPD_PORT_A);
+				GEN8_DE_PORT_HOTPLUG(HPD_PORT_A);
 		}
 
 		if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) {
 			vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |=
-				BXT_DE_PORT_HP_DDI(HPD_PORT_B);
+				GEN8_DE_PORT_HOTPLUG(HPD_PORT_B);
 		}
 
 		if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) {
 			vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |=
-				BXT_DE_PORT_HP_DDI(HPD_PORT_C);
+				GEN8_DE_PORT_HOTPLUG(HPD_PORT_C);
 		}
 
 		return;
@@ -328,7 +328,7 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu)
 	if (intel_vgpu_has_monitor_on_port(vgpu, PORT_A)) {
 		if (IS_BROADWELL(dev_priv))
 			vgpu_vreg_t(vgpu, GEN8_DE_PORT_ISR) |=
-				GEN8_PORT_DP_A_HOTPLUG;
+				GEN8_DE_PORT_HOTPLUG(HPD_PORT_A);
 		else
 			vgpu_vreg_t(vgpu, SDEISR) |= SDE_PORTA_HOTPLUG_SPT;
 

drivers/gpu/drm/i915/i915_irq.c

@@ -71,7 +71,7 @@ static const u32 hpd_ivb[HPD_NUM_PINS] = {
 };
 
 static const u32 hpd_bdw[HPD_NUM_PINS] = {
-	[HPD_PORT_A] = GEN8_PORT_DP_A_HOTPLUG,
+	[HPD_PORT_A] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_A),
 };
 
 static const u32 hpd_ibx[HPD_NUM_PINS] = {
@@ -126,9 +126,9 @@ static const u32 hpd_status_i915[HPD_NUM_PINS] = {
 };
 
 static const u32 hpd_bxt[HPD_NUM_PINS] = {
-	[HPD_PORT_A] = BXT_DE_PORT_HP_DDI(HPD_PORT_A),
-	[HPD_PORT_B] = BXT_DE_PORT_HP_DDI(HPD_PORT_B),
-	[HPD_PORT_C] = BXT_DE_PORT_HP_DDI(HPD_PORT_C),
+	[HPD_PORT_A] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_A),
+	[HPD_PORT_B] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_B),
+	[HPD_PORT_C] = GEN8_DE_PORT_HOTPLUG(HPD_PORT_C),
 };
 
 static const u32 hpd_gen11[HPD_NUM_PINS] = {
@@ -2379,7 +2379,7 @@ gen8_de_irq_handler(struct drm_i915_private *dev_priv, u32 master_ctl)
 					found = true;
 				}
 			} else if (IS_BROADWELL(dev_priv)) {
-				tmp_mask = iir & GEN8_PORT_DP_A_HOTPLUG;
+				tmp_mask = iir & BDW_DE_PORT_HOTPLUG_MASK;
 				if (tmp_mask) {
 					ilk_hpd_irq_handler(dev_priv, tmp_mask);
 					found = true;
@@ -3420,13 +3420,13 @@ static void __bxt_hpd_detection_setup(struct drm_i915_private *dev_priv,
 	 * For BXT invert bit has to be set based on AOB design
 	 * for HPD detection logic, update it based on VBT fields.
 	 */
-	if ((enabled_irqs & BXT_DE_PORT_HP_DDI(HPD_PORT_A)) &&
+	if ((enabled_irqs & GEN8_DE_PORT_HOTPLUG(HPD_PORT_A)) &&
 	    intel_bios_is_port_hpd_inverted(dev_priv, PORT_A))
 		hotplug |= BXT_DDIA_HPD_INVERT;
-	if ((enabled_irqs & BXT_DE_PORT_HP_DDI(HPD_PORT_B)) &&
+	if ((enabled_irqs & GEN8_DE_PORT_HOTPLUG(HPD_PORT_B)) &&
 	    intel_bios_is_port_hpd_inverted(dev_priv, PORT_B))
 		hotplug |= BXT_DDIB_HPD_INVERT;
-	if ((enabled_irqs & BXT_DE_PORT_HP_DDI(HPD_PORT_C)) &&
+	if ((enabled_irqs & GEN8_DE_PORT_HOTPLUG(HPD_PORT_C)) &&
 	    intel_bios_is_port_hpd_inverted(dev_priv, PORT_C))
 		hotplug |= BXT_DDIC_HPD_INVERT;
 
@@ -3595,7 +3595,7 @@ static void gen8_de_irq_postinstall(struct drm_i915_private *dev_priv)
 	if (IS_GEN9_LP(dev_priv))
 		de_port_enables |= BXT_DE_PORT_HOTPLUG_MASK;
 	else if (IS_BROADWELL(dev_priv))
-		de_port_enables |= GEN8_PORT_DP_A_HOTPLUG;
+		de_port_enables |= BDW_DE_PORT_HOTPLUG_MASK;
 
 	if (INTEL_GEN(dev_priv) >= 12) {
 		enum transcoder trans;

drivers/gpu/drm/i915/i915_reg.h

@@ -7828,11 +7828,11 @@ enum {
 #define  GEN9_AUX_CHANNEL_B		(1 << 25)
 #define  DSI1_TE			(1 << 24)
 #define  DSI0_TE			(1 << 23)
-#define  BXT_DE_PORT_HP_DDI(hpd_pin)	REG_BIT(3 + _HPD_PIN_DDI(hpd_pin))
-#define  BXT_DE_PORT_HOTPLUG_MASK	(BXT_DE_PORT_HP_DDI(HPD_PORT_A) | \
-					 BXT_DE_PORT_HP_DDI(HPD_PORT_B) | \
-					 BXT_DE_PORT_HP_DDI(HPD_PORT_C))
-#define  GEN8_PORT_DP_A_HOTPLUG		(1 << 3)
+#define  GEN8_DE_PORT_HOTPLUG(hpd_pin)	REG_BIT(3 + _HPD_PIN_DDI(hpd_pin))
+#define  BXT_DE_PORT_HOTPLUG_MASK	(GEN8_DE_PORT_HOTPLUG(HPD_PORT_A) | \
+					 GEN8_DE_PORT_HOTPLUG(HPD_PORT_B) | \
+					 GEN8_DE_PORT_HOTPLUG(HPD_PORT_C))
+#define  BDW_DE_PORT_HOTPLUG_MASK	GEN8_DE_PORT_HOTPLUG(HPD_PORT_A)
 #define  BXT_DE_PORT_GMBUS		(1 << 1)
 #define  GEN8_AUX_CHANNEL_A		(1 << 0)
 #define  TGL_DE_PORT_AUX_USBC6		(1 << 13)