drm/i915/rkl: Limit number of universal planes to 5

RKL only has five universal planes, plus a cursor.  Since the
bottom-most universal plane is considered the primary plane, set the
number of sprites available on this platform to 4.

In general, the plane capabilities of the remaining planes stay the same
as TGL.  However the NV12 Y-plane support moves down to the new top two
planes and now only the bottom three planes can be used for NV12 UV.

Bspec: 49181
Bspec: 49251
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200504225227.464666-8-matthew.d.roper@intel.com

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

@@ -12505,7 +12505,7 @@ static int icl_check_nv12_planes(struct intel_crtc_state *crtc_state)
 			continue;
 
 		for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, linked) {
-			if (!icl_is_nv12_y_plane(linked->id))
+			if (!icl_is_nv12_y_plane(dev_priv, linked->id))
 				continue;
 
 			if (crtc_state->active_planes & BIT(linked->id))
@@ -12551,6 +12551,10 @@ static int icl_check_nv12_planes(struct intel_crtc_state *crtc_state)
 				plane_state->cus_ctl |= PLANE_CUS_PLANE_7;
 			else if (linked->id == PLANE_SPRITE4)
 				plane_state->cus_ctl |= PLANE_CUS_PLANE_6;
+			else if (linked->id == PLANE_SPRITE3)
+				plane_state->cus_ctl |= PLANE_CUS_PLANE_5_RKL;
+			else if (linked->id == PLANE_SPRITE2)
+				plane_state->cus_ctl |= PLANE_CUS_PLANE_4_RKL;
 			else
 				MISSING_CASE(linked->id);
 		}

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

@@ -333,6 +333,21 @@ int intel_plane_check_src_coordinates(struct intel_plane_state *plane_state)
 	return 0;
 }
 
+static u8 icl_nv12_y_plane_mask(struct drm_i915_private *i915)
+{
+	if (IS_ROCKETLAKE(i915))
+		return BIT(PLANE_SPRITE2) | BIT(PLANE_SPRITE3);
+	else
+		return BIT(PLANE_SPRITE4) | BIT(PLANE_SPRITE5);
+}
+
+bool icl_is_nv12_y_plane(struct drm_i915_private *dev_priv,
+			 enum plane_id plane_id)
+{
+	return INTEL_GEN(dev_priv) >= 11 &&
+		icl_nv12_y_plane_mask(dev_priv) & BIT(plane_id);
+}
+
 bool icl_is_hdr_plane(struct drm_i915_private *dev_priv, enum plane_id plane_id)
 {
 	return INTEL_GEN(dev_priv) >= 11 &&
@@ -3003,7 +3018,7 @@ static const u32 *icl_get_plane_formats(struct drm_i915_private *dev_priv,
 	if (icl_is_hdr_plane(dev_priv, plane_id)) {
 		*num_formats = ARRAY_SIZE(icl_hdr_plane_formats);
 		return icl_hdr_plane_formats;
-	} else if (icl_is_nv12_y_plane(plane_id)) {
+	} else if (icl_is_nv12_y_plane(dev_priv, plane_id)) {
 		*num_formats = ARRAY_SIZE(icl_sdr_y_plane_formats);
 		return icl_sdr_y_plane_formats;
 	} else {

drivers/gpu/drm/i915/display/intel_sprite.h

@@ -32,21 +32,14 @@ struct intel_plane *
 skl_universal_plane_create(struct drm_i915_private *dev_priv,
 			   enum pipe pipe, enum plane_id plane_id);
 
-static inline bool icl_is_nv12_y_plane(enum plane_id id)
-{
-	/* Don't need to do a gen check, these planes are only available on gen11 */
-	if (id == PLANE_SPRITE4 || id == PLANE_SPRITE5)
-		return true;
-
-	return false;
-}
-
 static inline u8 icl_hdr_plane_mask(void)
 {
 	return BIT(PLANE_PRIMARY) |
 		BIT(PLANE_SPRITE0) | BIT(PLANE_SPRITE1);
 }
 
+bool icl_is_nv12_y_plane(struct drm_i915_private *dev_priv,
+			 enum plane_id plane_id);
 bool icl_is_hdr_plane(struct drm_i915_private *dev_priv, enum plane_id plane_id);
 
 int ivb_plane_min_cdclk(const struct intel_crtc_state *crtc_state,

drivers/gpu/drm/i915/i915_irq.c

@@ -2254,7 +2254,9 @@ static u32 gen8_de_port_aux_mask(struct drm_i915_private *dev_priv)
 
 static u32 gen8_de_pipe_fault_mask(struct drm_i915_private *dev_priv)
 {
-	if (INTEL_GEN(dev_priv) >= 11)
+	if (IS_ROCKETLAKE(dev_priv))
+		return RKL_DE_PIPE_IRQ_FAULT_ERRORS;
+	else if (INTEL_GEN(dev_priv) >= 11)
 		return GEN11_DE_PIPE_IRQ_FAULT_ERRORS;
 	else if (INTEL_GEN(dev_priv) >= 9)
 		return GEN9_DE_PIPE_IRQ_FAULT_ERRORS;

drivers/gpu/drm/i915/i915_reg.h

@@ -6912,6 +6912,8 @@ enum {
 #define _PLANE_CUS_CTL_1_A			0x701c8
 #define _PLANE_CUS_CTL_2_A			0x702c8
 #define  PLANE_CUS_ENABLE			(1 << 31)
+#define  PLANE_CUS_PLANE_4_RKL			(0 << 30)
+#define  PLANE_CUS_PLANE_5_RKL			(1 << 30)
 #define  PLANE_CUS_PLANE_6			(0 << 30)
 #define  PLANE_CUS_PLANE_7			(1 << 30)
 #define  PLANE_CUS_HPHASE_SIGN_NEGATIVE		(1 << 19)
@@ -7578,6 +7580,9 @@ enum {
 	 GEN11_PIPE_PLANE7_FAULT | \
 	 GEN11_PIPE_PLANE6_FAULT | \
 	 GEN11_PIPE_PLANE5_FAULT)
+#define RKL_DE_PIPE_IRQ_FAULT_ERRORS \
+	(GEN9_DE_PIPE_IRQ_FAULT_ERRORS | \
+	 GEN11_PIPE_PLANE5_FAULT)
 
 #define GEN8_DE_PORT_ISR _MMIO(0x44440)
 #define GEN8_DE_PORT_IMR _MMIO(0x44444)

drivers/gpu/drm/i915/intel_device_info.c

@@ -934,7 +934,10 @@ void intel_device_info_runtime_init(struct drm_i915_private *dev_priv)
 
 	BUILD_BUG_ON(BITS_PER_TYPE(intel_engine_mask_t) < I915_NUM_ENGINES);
 
-	if (INTEL_GEN(dev_priv) >= 11)
+	if (IS_ROCKETLAKE(dev_priv))
+		for_each_pipe(dev_priv, pipe)
+			runtime->num_sprites[pipe] = 4;
+	else if (INTEL_GEN(dev_priv) >= 11)
 		for_each_pipe(dev_priv, pipe)
 			runtime->num_sprites[pipe] = 6;
 	else if (IS_GEN(dev_priv, 10) || IS_GEMINILAKE(dev_priv))