drm/i915: Introduce intel_psr.c

No functional changes. Just cleaning and reorganizing it.

v2: Rebase it puting it to begin of psr rework. This helps to blame easily
at least latest changes.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/Makefile

@@ -51,6 +51,7 @@ i915-y += intel_audio.o \
 	  intel_frontbuffer.o \
 	  intel_modes.o \
 	  intel_overlay.o \
+	  intel_psr.o \
 	  intel_sideband.o \
 	  intel_sprite.o
 i915-$(CONFIG_ACPI)		+= intel_acpi.o intel_opregion.o

drivers/gpu/drm/i915/intel_ddi.c

@@ -1583,7 +1583,7 @@ static void intel_enable_ddi(struct intel_encoder *intel_encoder)
 			intel_dp_stop_link_train(intel_dp);
 
 		intel_edp_backlight_on(intel_dp);
-		intel_edp_psr_enable(intel_dp);
+		intel_psr_enable(intel_dp);
 	}
 
 	if (intel_crtc->config.has_audio) {
@@ -1609,7 +1609,7 @@ static void intel_disable_ddi(struct intel_encoder *intel_encoder)
 	if (type == INTEL_OUTPUT_EDP) {
 		struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
 
-		intel_edp_psr_disable(intel_dp);
+		intel_psr_disable(intel_dp);
 		intel_edp_backlight_off(intel_dp);
 	}
 }

drivers/gpu/drm/i915/intel_display.c

@@ -12449,7 +12449,7 @@ static void intel_setup_outputs(struct drm_device *dev)
 	if (SUPPORTS_TV(dev))
 		intel_tv_init(dev);
 
-	intel_edp_psr_init(dev);
+	intel_psr_init(dev);
 
 	for_each_intel_encoder(dev, encoder) {
 		encoder->base.possible_crtcs = encoder->crtc_mask;

drivers/gpu/drm/i915/intel_drv.h

@@ -999,21 +999,16 @@ void intel_edp_backlight_off(struct intel_dp *intel_dp);
 void intel_edp_panel_vdd_on(struct intel_dp *intel_dp);
 void intel_edp_panel_on(struct intel_dp *intel_dp);
 void intel_edp_panel_off(struct intel_dp *intel_dp);
-void intel_edp_psr_enable(struct intel_dp *intel_dp);
-void intel_edp_psr_disable(struct intel_dp *intel_dp);
 void intel_dp_set_drrs_state(struct drm_device *dev, int refresh_rate);
-void intel_edp_psr_invalidate(struct drm_device *dev,
-			      unsigned frontbuffer_bits);
-void intel_edp_psr_flush(struct drm_device *dev,
-			 unsigned frontbuffer_bits);
-void intel_edp_psr_init(struct drm_device *dev);
-
 void intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector);
 void intel_dp_mst_suspend(struct drm_device *dev);
 void intel_dp_mst_resume(struct drm_device *dev);
 int intel_dp_max_link_bw(struct intel_dp *intel_dp);
 void intel_dp_hot_plug(struct intel_encoder *intel_encoder);
 void vlv_power_sequencer_reset(struct drm_i915_private *dev_priv);
+uint32_t intel_dp_pack_aux(const uint8_t *src, int src_bytes);
+void intel_dp_unpack_aux(uint32_t src, uint8_t *dst, int dst_bytes);
+
 /* intel_dp_mst.c */
 int intel_dp_mst_encoder_init(struct intel_digital_port *intel_dig_port, int conn_id);
 void intel_dp_mst_encoder_cleanup(struct intel_digital_port *intel_dig_port);
@@ -1117,6 +1112,16 @@ void intel_backlight_register(struct drm_device *dev);
 void intel_backlight_unregister(struct drm_device *dev);
 
 
+/* intel_psr.c */
+bool intel_psr_is_enabled(struct drm_device *dev);
+void intel_psr_enable(struct intel_dp *intel_dp);
+void intel_psr_disable(struct intel_dp *intel_dp);
+void intel_psr_invalidate(struct drm_device *dev,
+			      unsigned frontbuffer_bits);
+void intel_psr_flush(struct drm_device *dev,
+			 unsigned frontbuffer_bits);
+void intel_psr_init(struct drm_device *dev);
+
 /* intel_runtime_pm.c */
 int intel_power_domains_init(struct drm_i915_private *);
 void intel_power_domains_fini(struct drm_i915_private *);

drivers/gpu/drm/i915/intel_frontbuffer.c

@@ -156,7 +156,7 @@ void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
 
 	intel_mark_fb_busy(dev, obj->frontbuffer_bits, ring);
 
-	intel_edp_psr_invalidate(dev, obj->frontbuffer_bits);
+	intel_psr_invalidate(dev, obj->frontbuffer_bits);
 }
 
 /**
@@ -182,7 +182,7 @@ void intel_frontbuffer_flush(struct drm_device *dev,
 
 	intel_mark_fb_busy(dev, frontbuffer_bits, NULL);
 
-	intel_edp_psr_flush(dev, frontbuffer_bits);
+	intel_psr_flush(dev, frontbuffer_bits);
 
 	/*
 	 * FIXME: Unconditional fbc flushing here is a rather gross hack and