[PATCH 2/6] drm/i915: Handle adjust better in intel_pipe_config_compare

[Maarten Lankhorst]

Some parameters use CHECK_I, but should really use CHECK_BOOL.
Convert all boools to use CHECK_BOOL, and also create a
CHECK_BOOL_INCOMPLETE for has_audio and has_infoframe, we
cannot currently check whether the inherited infoframes and
audio are set up correctly.

Also do not check ips_enabled, it will not be enabled if the
primary plane isn't. It's only a flag indicating IPS can be
enabled.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_display.c | 49 +++++++++++++++++++++++++-----------
 1 file changed, 35 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 17665ee06c9a..f5933b0719c9 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -11076,6 +11076,9 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
 			  bool adjust)
 {
 	bool ret = true;
+	bool fixup_inherited = adjust &&
+		(current_config->base.mode.private_flags & I915_MODE_FLAG_INHERITED) &&
+		!(pipe_config->base.mode.private_flags & I915_MODE_FLAG_INHERITED);
 
 #define PIPE_CONF_CHECK_X(name)	\
 	if (current_config->name != pipe_config->name) { \
@@ -11095,6 +11098,26 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
 		ret = false; \
 	}
 
+#define PIPE_CONF_CHECK_BOOL(name)	\
+	if (current_config->name != pipe_config->name) { \
+		pipe_config_err(adjust, __stringify(name), \
+			  "(expected %s, found %s)\n", \
+			  yesno(current_config->name), \
+			  yesno(pipe_config->name)); \
+		ret = false; \
+	}
+
+#define PIPE_CONF_CHECK_BOOL_INCOMPLETE(name) \
+	if (!fixup_inherited || (!current_config->name && !pipe_config->name)) { \
+		PIPE_CONF_CHECK_BOOL(name); \
+	} else { \
+		pipe_config_err(adjust, __stringify(name), \
+			  "unable to verify whether state matches exactly, forcing modeset (expected %s, found %s)\n", \
+			  yesno(current_config->name), \
+			  yesno(pipe_config->name)); \
+		ret = false; \
+	}
+
 #define PIPE_CONF_CHECK_P(name)	\
 	if (current_config->name != pipe_config->name) { \
 		pipe_config_err(adjust, __stringify(name), \
@@ -11180,7 +11203,7 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
 
 	PIPE_CONF_CHECK_I(cpu_transcoder);
 
-	PIPE_CONF_CHECK_I(has_pch_encoder);
+	PIPE_CONF_CHECK_BOOL(has_pch_encoder);
 	PIPE_CONF_CHECK_I(fdi_lanes);
 	PIPE_CONF_CHECK_M_N(fdi_m_n);
 
@@ -11212,17 +11235,17 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
 	PIPE_CONF_CHECK_I(base.adjusted_mode.crtc_vsync_end);
 
 	PIPE_CONF_CHECK_I(pixel_multiplier);
-	PIPE_CONF_CHECK_I(has_hdmi_sink);
+	PIPE_CONF_CHECK_BOOL(has_hdmi_sink);
 	if ((INTEL_GEN(dev_priv) < 8 && !IS_HASWELL(dev_priv)) ||
 	    IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
-		PIPE_CONF_CHECK_I(limited_color_range);
+		PIPE_CONF_CHECK_BOOL(limited_color_range);
 
-	PIPE_CONF_CHECK_I(hdmi_scrambling);
-	PIPE_CONF_CHECK_I(hdmi_high_tmds_clock_ratio);
-	PIPE_CONF_CHECK_I(has_infoframe);
-	PIPE_CONF_CHECK_I(ycbcr420);
+	PIPE_CONF_CHECK_BOOL(hdmi_scrambling);
+	PIPE_CONF_CHECK_BOOL(hdmi_high_tmds_clock_ratio);
+	PIPE_CONF_CHECK_BOOL_INCOMPLETE(has_infoframe);
+	PIPE_CONF_CHECK_BOOL(ycbcr420);
 
-	PIPE_CONF_CHECK_I(has_audio);
+	PIPE_CONF_CHECK_BOOL_INCOMPLETE(has_audio);
 
 	PIPE_CONF_CHECK_FLAGS(base.adjusted_mode.flags,
 			      DRM_MODE_FLAG_INTERLACE);
@@ -11248,7 +11271,7 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
 		PIPE_CONF_CHECK_I(pipe_src_w);
 		PIPE_CONF_CHECK_I(pipe_src_h);
 
-		PIPE_CONF_CHECK_I(pch_pfit.enabled);
+		PIPE_CONF_CHECK_BOOL(pch_pfit.enabled);
 		if (current_config->pch_pfit.enabled) {
 			PIPE_CONF_CHECK_X(pch_pfit.pos);
 			PIPE_CONF_CHECK_X(pch_pfit.size);
@@ -11258,11 +11281,7 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
 		PIPE_CONF_CHECK_CLOCK_FUZZY(pixel_rate);
 	}
 
-	/* BDW+ don't expose a synchronous way to read the state */
-	if (IS_HASWELL(dev_priv))
-		PIPE_CONF_CHECK_I(ips_enabled);
-
-	PIPE_CONF_CHECK_I(double_wide);
+	PIPE_CONF_CHECK_BOOL(double_wide);
 
 	PIPE_CONF_CHECK_P(shared_dpll);
 	PIPE_CONF_CHECK_X(dpll_hw_state.dpll);
@@ -11300,6 +11319,8 @@ intel_pipe_config_compare(struct drm_i915_private *dev_priv,
 
 #undef PIPE_CONF_CHECK_X
 #undef PIPE_CONF_CHECK_I
+#undef PIPE_CONF_CHECK_BOOL
+#undef PIPE_CONF_CHECK_BOOL_INCOMPLETE
 #undef PIPE_CONF_CHECK_P
 #undef PIPE_CONF_CHECK_FLAGS
 #undef PIPE_CONF_CHECK_CLOCK_FUZZY
-- 
2.15.0