[PATCH 11/19] drm/i915: Split current joiner hw state readout

[Ankit Nautiyal]

From: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>

We need to add a new sanity checks and also do
some preparations for adding ultrajoiner hw state readout.
Lets first split reading of the uncompressed joiner and bigjoiner
bit masks into separate functions.

v2: Fixed checkpatch warnings (Ankit)
v3: Use struct intel_display in the new functions. (Ankit)

Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy at intel.com>
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 75 ++++++++++++++------
 1 file changed, 55 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 248ad63b0ba8..e93af02aa859 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -3582,27 +3582,54 @@ static bool intel_display_can_use_joiner(struct intel_display *display)
 	return (DISPLAY_VER(display) >= 11);
 }
 
-static void enabled_joiner_pipes(struct drm_i915_private *dev_priv,
-				 u8 *primary_pipes, u8 *secondary_pipes)
+static void enabled_uncompressed_joiner_pipes(struct intel_display *display,
+					      u8 *primary_pipes, u8 *secondary_pipes)
 {
-	struct intel_display *display = to_intel_display(&dev_priv->drm);
+	struct drm_i915_private *i915 = to_i915(display->drm);
 	struct intel_crtc *crtc;
 
 	*primary_pipes = 0;
 	*secondary_pipes = 0;
 
-	if (!intel_display_can_use_joiner(display))
+	if (DISPLAY_VER(display) < 13)
 		return;
 
-	for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, crtc,
-					 joiner_pipes(dev_priv)) {
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc,
+					 joiner_pipes(i915)) {
 		enum intel_display_power_domain power_domain;
 		enum pipe pipe = crtc->pipe;
 		intel_wakeref_t wakeref;
 
-		power_domain = intel_dsc_power_domain(crtc, (enum transcoder) pipe);
-		with_intel_display_power_if_enabled(dev_priv, power_domain, wakeref) {
-			u32 tmp = intel_de_read(dev_priv, ICL_PIPE_DSS_CTL1(pipe));
+		power_domain = POWER_DOMAIN_PIPE(pipe);
+		with_intel_display_power_if_enabled(i915, power_domain, wakeref) {
+			u32 tmp = intel_de_read(display, ICL_PIPE_DSS_CTL1(pipe));
+
+			if (tmp & UNCOMPRESSED_JOINER_PRIMARY)
+				*primary_pipes |= BIT(pipe);
+			if (tmp & UNCOMPRESSED_JOINER_SECONDARY)
+				*secondary_pipes |= BIT(pipe);
+		}
+	}
+}
+
+static void enabled_bigjoiner_pipes(struct intel_display *display,
+				    u8 *primary_pipes, u8 *secondary_pipes)
+{
+	struct drm_i915_private *i915 = to_i915(display->drm);
+	struct intel_crtc *crtc;
+
+	*primary_pipes = 0;
+	*secondary_pipes = 0;
+
+	for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc,
+					 joiner_pipes(i915)) {
+		enum intel_display_power_domain power_domain;
+		enum pipe pipe = crtc->pipe;
+		intel_wakeref_t wakeref;
+
+		power_domain = intel_dsc_power_domain(crtc, (enum transcoder)pipe);
+		with_intel_display_power_if_enabled(i915, power_domain, wakeref) {
+			u32 tmp = intel_de_read(display, ICL_PIPE_DSS_CTL1(pipe));
 
 			if (!(tmp & BIG_JOINER_ENABLE))
 				continue;
@@ -3612,20 +3639,28 @@ static void enabled_joiner_pipes(struct drm_i915_private *dev_priv,
 			else
 				*secondary_pipes |= BIT(pipe);
 		}
+	}
+}
 
-		if (DISPLAY_VER(dev_priv) < 13)
-			continue;
+static void enabled_joiner_pipes(struct drm_i915_private *dev_priv,
+				 u8 *primary_pipes, u8 *secondary_pipes)
+{
+	struct intel_display *display = to_intel_display(&dev_priv->drm);
+	u8 primary_uncompressed_joiner_pipes, primary_bigjoiner_pipes;
+	u8 secondary_uncompressed_joiner_pipes, secondary_bigjoiner_pipes;
 
-		power_domain = POWER_DOMAIN_PIPE(pipe);
-		with_intel_display_power_if_enabled(dev_priv, power_domain, wakeref) {
-			u32 tmp = intel_de_read(dev_priv, ICL_PIPE_DSS_CTL1(pipe));
+	if (!intel_display_can_use_joiner(display))
+		return;
 
-			if (tmp & UNCOMPRESSED_JOINER_PRIMARY)
-				*primary_pipes |= BIT(pipe);
-			if (tmp & UNCOMPRESSED_JOINER_SECONDARY)
-				*secondary_pipes |= BIT(pipe);
-		}
-	}
+	enabled_uncompressed_joiner_pipes(display, &primary_uncompressed_joiner_pipes,
+					  &secondary_uncompressed_joiner_pipes);
+
+	enabled_bigjoiner_pipes(display, &primary_bigjoiner_pipes,
+				&secondary_bigjoiner_pipes);
+
+	*primary_pipes = primary_uncompressed_joiner_pipes | primary_bigjoiner_pipes;
+
+	*secondary_pipes = secondary_uncompressed_joiner_pipes | secondary_bigjoiner_pipes;
 
 	/* Joiner pipes should always be consecutive primary and secondary */
 	drm_WARN(&dev_priv->drm, *secondary_pipes != *primary_pipes << 1,
-- 
2.45.2