drm/i915: Extend skl+ crc sources with more planes

On skl the crc registers were extended to provide plane crcs
for up to 7 planes. Add the new crc sources.

The current code uses the ivb+ register definitions for skl+
which does happen to work as the plane1, plane2, and dmux/pf
bits happen the match what ivb+ had. So no bug in the current
code.

v2: Drop the unused set_wa parameter (DK)
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190214192219.3858-4-ville.syrjala@linux.intel.comReviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/i915/i915_drv.h

@@ -1198,6 +1198,11 @@ enum intel_pipe_crc_source {
 	INTEL_PIPE_CRC_SOURCE_NONE,
 	INTEL_PIPE_CRC_SOURCE_PLANE1,
 	INTEL_PIPE_CRC_SOURCE_PLANE2,
+	INTEL_PIPE_CRC_SOURCE_PLANE3,
+	INTEL_PIPE_CRC_SOURCE_PLANE4,
+	INTEL_PIPE_CRC_SOURCE_PLANE5,
+	INTEL_PIPE_CRC_SOURCE_PLANE6,
+	INTEL_PIPE_CRC_SOURCE_PLANE7,
 	INTEL_PIPE_CRC_SOURCE_PIPE,
 	/* TV/DP on pre-gen5/vlv can't use the pipe source. */
 	INTEL_PIPE_CRC_SOURCE_TV,

drivers/gpu/drm/i915/i915_reg.h

@@ -4017,6 +4017,15 @@ enum {
 /* Pipe A CRC regs */
 #define _PIPE_CRC_CTL_A			0x60050
 #define   PIPE_CRC_ENABLE		(1 << 31)
+/* skl+ source selection */
+#define   PIPE_CRC_SOURCE_PLANE_1_SKL	(0 << 28)
+#define   PIPE_CRC_SOURCE_PLANE_2_SKL	(2 << 28)
+#define   PIPE_CRC_SOURCE_DMUX_SKL	(4 << 28)
+#define   PIPE_CRC_SOURCE_PLANE_3_SKL	(6 << 28)
+#define   PIPE_CRC_SOURCE_PLANE_4_SKL	(7 << 28)
+#define   PIPE_CRC_SOURCE_PLANE_5_SKL	(5 << 28)
+#define   PIPE_CRC_SOURCE_PLANE_6_SKL	(3 << 28)
+#define   PIPE_CRC_SOURCE_PLANE_7_SKL	(1 << 28)
 /* ivb+ source selection */
 #define   PIPE_CRC_SOURCE_PRIMARY_IVB	(0 << 29)
 #define   PIPE_CRC_SOURCE_SPRITE_IVB	(1 << 29)

drivers/gpu/drm/i915/intel_pipe_crc.c

@@ -34,6 +34,11 @@ static const char * const pipe_crc_sources[] = {
 	[INTEL_PIPE_CRC_SOURCE_NONE] = "none",
 	[INTEL_PIPE_CRC_SOURCE_PLANE1] = "plane1",
 	[INTEL_PIPE_CRC_SOURCE_PLANE2] = "plane2",
+	[INTEL_PIPE_CRC_SOURCE_PLANE3] = "plane3",
+	[INTEL_PIPE_CRC_SOURCE_PLANE4] = "plane4",
+	[INTEL_PIPE_CRC_SOURCE_PLANE5] = "plane5",
+	[INTEL_PIPE_CRC_SOURCE_PLANE6] = "plane6",
+	[INTEL_PIPE_CRC_SOURCE_PLANE7] = "plane7",
 	[INTEL_PIPE_CRC_SOURCE_PIPE] = "pipe",
 	[INTEL_PIPE_CRC_SOURCE_TV] = "TV",
 	[INTEL_PIPE_CRC_SOURCE_DP_B] = "DP-B",
@@ -368,6 +373,49 @@ static int ivb_pipe_crc_ctl_reg(struct drm_i915_private *dev_priv,
 	return 0;
 }
 
+static int skl_pipe_crc_ctl_reg(struct drm_i915_private *dev_priv,
+				enum pipe pipe,
+				enum intel_pipe_crc_source *source,
+				uint32_t *val)
+{
+	if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
+		*source = INTEL_PIPE_CRC_SOURCE_PIPE;
+
+	switch (*source) {
+	case INTEL_PIPE_CRC_SOURCE_PLANE1:
+		*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PLANE_1_SKL;
+		break;
+	case INTEL_PIPE_CRC_SOURCE_PLANE2:
+		*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PLANE_2_SKL;
+		break;
+	case INTEL_PIPE_CRC_SOURCE_PLANE3:
+		*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PLANE_3_SKL;
+		break;
+	case INTEL_PIPE_CRC_SOURCE_PLANE4:
+		*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PLANE_4_SKL;
+		break;
+	case INTEL_PIPE_CRC_SOURCE_PLANE5:
+		*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PLANE_5_SKL;
+		break;
+	case INTEL_PIPE_CRC_SOURCE_PLANE6:
+		*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PLANE_6_SKL;
+		break;
+	case INTEL_PIPE_CRC_SOURCE_PLANE7:
+		*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PLANE_7_SKL;
+		break;
+	case INTEL_PIPE_CRC_SOURCE_PIPE:
+		*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_DMUX_SKL;
+		break;
+	case INTEL_PIPE_CRC_SOURCE_NONE:
+		*val = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int get_new_crc_ctl_reg(struct drm_i915_private *dev_priv,
 			       enum pipe pipe,
 			       enum intel_pipe_crc_source *source, u32 *val,
@@ -381,8 +429,10 @@ static int get_new_crc_ctl_reg(struct drm_i915_private *dev_priv,
 		return vlv_pipe_crc_ctl_reg(dev_priv, pipe, source, val);
 	else if (IS_GEN_RANGE(dev_priv, 5, 6))
 		return ilk_pipe_crc_ctl_reg(source, val);
-	else
+	else if (INTEL_GEN(dev_priv) < 9)
 		return ivb_pipe_crc_ctl_reg(dev_priv, pipe, source, val, set_wa);
+	else
+		return skl_pipe_crc_ctl_reg(dev_priv, pipe, source, val);
 }
 
 static int
@@ -482,6 +532,25 @@ static int ivb_crc_source_valid(struct drm_i915_private *dev_priv,
 	}
 }
 
+static int skl_crc_source_valid(struct drm_i915_private *dev_priv,
+				const enum intel_pipe_crc_source source)
+{
+	switch (source) {
+	case INTEL_PIPE_CRC_SOURCE_PIPE:
+	case INTEL_PIPE_CRC_SOURCE_PLANE1:
+	case INTEL_PIPE_CRC_SOURCE_PLANE2:
+	case INTEL_PIPE_CRC_SOURCE_PLANE3:
+	case INTEL_PIPE_CRC_SOURCE_PLANE4:
+	case INTEL_PIPE_CRC_SOURCE_PLANE5:
+	case INTEL_PIPE_CRC_SOURCE_PLANE6:
+	case INTEL_PIPE_CRC_SOURCE_PLANE7:
+	case INTEL_PIPE_CRC_SOURCE_NONE:
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
 static int
 intel_is_valid_crc_source(struct drm_i915_private *dev_priv,
 			  const enum intel_pipe_crc_source source)
@@ -494,8 +563,10 @@ intel_is_valid_crc_source(struct drm_i915_private *dev_priv,
 		return vlv_crc_source_valid(dev_priv, source);
 	else if (IS_GEN_RANGE(dev_priv, 5, 6))
 		return ilk_crc_source_valid(dev_priv, source);
-	else
+	else if (INTEL_GEN(dev_priv) < 9)
 		return ivb_crc_source_valid(dev_priv, source);
+	else
+		return skl_crc_source_valid(dev_priv, source);
 }
 
 const char *const *intel_crtc_get_crc_sources(struct drm_crtc *crtc,