Merge tag 'drm-intel-next-2021-01-04' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- Display hotplug fix for gen2/gen3 (Chris)
- Remove trailing semicolon (Tom)
- Suppress display warnings for old ifwi presend on our CI (Chris)
- OA/Perf related workaround (Lionel)
- Replace I915_READ/WRITE per new uncore and display read/write functions (Jani)
- PSR improvements (Jose)
- HDR and other color changes on LSPCON (Uma, Ville)
- FBC fixes for TGL (Uma)
- Record plane update times for debugging (Chris)
- Refactor panel backlight control functions (Dave)
- Display power improvements (Imre)
- Add VRR register definition (Manasi)
- Atomic modeset improvements for bigjoiner pipes (Ville)
- Switch off the scanout during driver unregister (Chris)
- Clean-up DP's FEW enable (Manasi)
- Fix VDSCP slice count (Manasi)
- Fix and clean up around rc_model_size for DSC (Jani)
- Remove Type-C noisy debug warn message (Sean)
- Display HPD code clean-up (Ville)
- Refactor Intel Display (Dave)
- Start adding support for Intel's eDP backlight controls (Lyude)

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210104211018.GA1094707@intel.com

1 files changed, 95 insertions, 32 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index fe2d90bba536..d52374f01316 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -2184,26 +2184,6 @@ static void __intel_display_power_put(struct drm_i915_private *dev_priv,
 	mutex_unlock(&power_domains->lock);
 }
 
-/**
- * intel_display_power_put_unchecked - release an unchecked power domain reference
- * @dev_priv: i915 device instance
- * @domain: power domain to reference
- *
- * This function drops the power domain reference obtained by
- * intel_display_power_get() and might power down the corresponding hardware
- * block right away if this is the last reference.
- *
- * This function exists only for historical reasons and should be avoided in
- * new code, as the correctness of its use cannot be checked. Always use
- * intel_display_power_put() instead.
- */
-void intel_display_power_put_unchecked(struct drm_i915_private *dev_priv,
-				       enum intel_display_power_domain domain)
-{
-	__intel_display_power_put(dev_priv, domain);
-	intel_runtime_pm_put_unchecked(&dev_priv->runtime_pm);
-}
-
 static void
 queue_async_put_domains_work(struct i915_power_domains *power_domains,
 			     intel_wakeref_t wakeref)
@@ -2410,8 +2390,85 @@ void intel_display_power_put(struct drm_i915_private *dev_priv,
 	__intel_display_power_put(dev_priv, domain);
 	intel_runtime_pm_put(&dev_priv->runtime_pm, wakeref);
 }
+#else
+/**
+ * intel_display_power_put_unchecked - release an unchecked power domain reference
+ * @dev_priv: i915 device instance
+ * @domain: power domain to reference
+ *
+ * This function drops the power domain reference obtained by
+ * intel_display_power_get() and might power down the corresponding hardware
+ * block right away if this is the last reference.
+ *
+ * This function is only for the power domain code's internal use to suppress wakeref
+ * tracking when the correspondig debug kconfig option is disabled, should not
+ * be used otherwise.
+ */
+void intel_display_power_put_unchecked(struct drm_i915_private *dev_priv,
+				       enum intel_display_power_domain domain)
+{
+	__intel_display_power_put(dev_priv, domain);
+	intel_runtime_pm_put_unchecked(&dev_priv->runtime_pm);
+}
 #endif
 
+void
+intel_display_power_get_in_set(struct drm_i915_private *i915,
+			       struct intel_display_power_domain_set *power_domain_set,
+			       enum intel_display_power_domain domain)
+{
+	intel_wakeref_t __maybe_unused wf;
+
+	drm_WARN_ON(&i915->drm, power_domain_set->mask & BIT_ULL(domain));
+
+	wf = intel_display_power_get(i915, domain);
+#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
+	power_domain_set->wakerefs[domain] = wf;
+#endif
+	power_domain_set->mask |= BIT_ULL(domain);
+}
+
+bool
+intel_display_power_get_in_set_if_enabled(struct drm_i915_private *i915,
+					  struct intel_display_power_domain_set *power_domain_set,
+					  enum intel_display_power_domain domain)
+{
+	intel_wakeref_t wf;
+
+	drm_WARN_ON(&i915->drm, power_domain_set->mask & BIT_ULL(domain));
+
+	wf = intel_display_power_get_if_enabled(i915, domain);
+	if (!wf)
+		return false;
+
+#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
+	power_domain_set->wakerefs[domain] = wf;
+#endif
+	power_domain_set->mask |= BIT_ULL(domain);
+
+	return true;
+}
+
+void
+intel_display_power_put_mask_in_set(struct drm_i915_private *i915,
+				    struct intel_display_power_domain_set *power_domain_set,
+				    u64 mask)
+{
+	enum intel_display_power_domain domain;
+
+	drm_WARN_ON(&i915->drm, mask & ~power_domain_set->mask);
+
+	for_each_power_domain(domain, mask) {
+		intel_wakeref_t __maybe_unused wf = -1;
+
+#if IS_ENABLED(CONFIG_DRM_I915_DEBUG_RUNTIME_PM)
+		wf = fetch_and_zero(&power_domain_set->wakerefs[domain]);
+#endif
+		intel_display_power_put(i915, domain, wf);
+		power_domain_set->mask &= ~BIT_ULL(domain);
+	}
+}
+
 #define I830_PIPES_POWER_DOMAINS (		\
 	BIT_ULL(POWER_DOMAIN_PIPE_A) |		\
 	BIT_ULL(POWER_DOMAIN_PIPE_B) |		\
@@ -5601,12 +5658,16 @@ void intel_power_domains_init_hw(struct drm_i915_private *i915, bool resume)
 	 * resources powered until display HW readout is complete. We drop
 	 * this reference in intel_power_domains_enable().
 	 */
-	power_domains->wakeref =
+	drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
+	power_domains->init_wakeref =
 		intel_display_power_get(i915, POWER_DOMAIN_INIT);
 
 	/* Disable power support if the user asked so. */
-	if (!i915->params.disable_power_well)
-		intel_display_power_get(i915, POWER_DOMAIN_INIT);
+	if (!i915->params.disable_power_well) {
+		drm_WARN_ON(&i915->drm, power_domains->disable_wakeref);
+		i915->power_domains.disable_wakeref = intel_display_power_get(i915,
+									      POWER_DOMAIN_INIT);
+	}
 	intel_power_domains_sync_hw(i915);
 
 	power_domains->initializing = false;
@@ -5626,11 +5687,12 @@ void intel_power_domains_init_hw(struct drm_i915_private *i915, bool resume)
 void intel_power_domains_driver_remove(struct drm_i915_private *i915)
 {
 	intel_wakeref_t wakeref __maybe_unused =
-		fetch_and_zero(&i915->power_domains.wakeref);
+		fetch_and_zero(&i915->power_domains.init_wakeref);
 
 	/* Remove the refcount we took to keep power well support disabled. */
 	if (!i915->params.disable_power_well)
-		intel_display_power_put_unchecked(i915, POWER_DOMAIN_INIT);
+		intel_display_power_put(i915, POWER_DOMAIN_INIT,
+					fetch_and_zero(&i915->power_domains.disable_wakeref));
 
 	intel_display_power_flush_work_sync(i915);
 
@@ -5655,7 +5717,7 @@ void intel_power_domains_driver_remove(struct drm_i915_private *i915)
 void intel_power_domains_enable(struct drm_i915_private *i915)
 {
 	intel_wakeref_t wakeref __maybe_unused =
-		fetch_and_zero(&i915->power_domains.wakeref);
+		fetch_and_zero(&i915->power_domains.init_wakeref);
 
 	intel_display_power_put(i915, POWER_DOMAIN_INIT, wakeref);
 	intel_power_domains_verify_state(i915);
@@ -5672,8 +5734,8 @@ void intel_power_domains_disable(struct drm_i915_private *i915)
 {
 	struct i915_power_domains *power_domains = &i915->power_domains;
 
-	drm_WARN_ON(&i915->drm, power_domains->wakeref);
-	power_domains->wakeref =
+	drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
+	power_domains->init_wakeref =
 		intel_display_power_get(i915, POWER_DOMAIN_INIT);
 
 	intel_power_domains_verify_state(i915);
@@ -5695,7 +5757,7 @@ void intel_power_domains_suspend(struct drm_i915_private *i915,
 {
 	struct i915_power_domains *power_domains = &i915->power_domains;
 	intel_wakeref_t wakeref __maybe_unused =
-		fetch_and_zero(&power_domains->wakeref);
+		fetch_and_zero(&power_domains->init_wakeref);
 
 	intel_display_power_put(i915, POWER_DOMAIN_INIT, wakeref);
 
@@ -5719,7 +5781,8 @@ void intel_power_domains_suspend(struct drm_i915_private *i915,
 	 * power wells if power domains must be deinitialized for suspend.
 	 */
 	if (!i915->params.disable_power_well)
-		intel_display_power_put_unchecked(i915, POWER_DOMAIN_INIT);
+		intel_display_power_put(i915, POWER_DOMAIN_INIT,
+					fetch_and_zero(&i915->power_domains.disable_wakeref));
 
 	intel_display_power_flush_work(i915);
 	intel_power_domains_verify_state(i915);
@@ -5754,8 +5817,8 @@ void intel_power_domains_resume(struct drm_i915_private *i915)
 		intel_power_domains_init_hw(i915, true);
 		power_domains->display_core_suspended = false;
 	} else {
-		drm_WARN_ON(&i915->drm, power_domains->wakeref);
-		power_domains->wakeref =
+		drm_WARN_ON(&i915->drm, power_domains->init_wakeref);
+		power_domains->init_wakeref =
 			intel_display_power_get(i915, POWER_DOMAIN_INIT);
 	}