#include "intel_drv.h"
#include "i915_drv.h"
-static void intel_increase_pllclock(struct drm_device *dev,
- enum pipe pipe)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- int dpll_reg = DPLL(pipe);
- int dpll;
-
- if (!HAS_GMCH_DISPLAY(dev))
- return;
-
- if (!dev_priv->lvds_downclock_avail)
- return;
-
- dpll = I915_READ(dpll_reg);
- if (!HAS_PIPE_CXSR(dev) && (dpll & DISPLAY_RATE_SELECT_FPA1)) {
- DRM_DEBUG_DRIVER("upclocking LVDS\n");
-
- assert_panel_unlocked(dev_priv, pipe);
-
- dpll &= ~DISPLAY_RATE_SELECT_FPA1;
- I915_WRITE(dpll_reg, dpll);
- intel_wait_for_vblank(dev, pipe);
-
- dpll = I915_READ(dpll_reg);
- if (dpll & DISPLAY_RATE_SELECT_FPA1)
- DRM_DEBUG_DRIVER("failed to upclock LVDS!\n");
- }
-}
-
-/**
- * intel_mark_fb_busy - mark given planes as busy
- * @dev: DRM device
- * @frontbuffer_bits: bits for the affected planes
- * @ring: optional ring for asynchronous commands
- *
- * This function gets called every time the screen contents change. It can be
- * used to keep e.g. the update rate at the nominal refresh rate with DRRS.
- */
-static void intel_mark_fb_busy(struct drm_device *dev,
- unsigned frontbuffer_bits,
- struct intel_engine_cs *ring)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
- enum pipe pipe;
-
- for_each_pipe(dev_priv, pipe) {
- if (!(frontbuffer_bits & INTEL_FRONTBUFFER_ALL_MASK(pipe)))
- continue;
-
- intel_increase_pllclock(dev, pipe);
- }
-}
-
/**
* intel_fb_obj_invalidate - invalidate frontbuffer object
* @obj: GEM object to invalidate
- * @ring: set for asynchronous rendering
* @origin: which operation caused the invalidation
*
* This function gets called every time rendering on the given object starts and
* frontbuffer caching (fbc, low refresh rate for DRRS, panel self refresh) must
- * be invalidated. If @ring is non-NULL any subsequent invalidation will be delayed
+ * be invalidated. For ORIGIN_CS any subsequent invalidation will be delayed
* until the rendering completes or a flip on this frontbuffer plane is
* scheduled.
*/
void intel_fb_obj_invalidate(struct drm_i915_gem_object *obj,
- struct intel_engine_cs *ring,
enum fb_op_origin origin)
{
struct drm_device *dev = obj->base.dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = to_i915(dev);
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
if (!obj->frontbuffer_bits)
return;
- if (ring) {
+ if (origin == ORIGIN_CS) {
mutex_lock(&dev_priv->fb_tracking.lock);
dev_priv->fb_tracking.busy_bits
|= obj->frontbuffer_bits;
mutex_unlock(&dev_priv->fb_tracking.lock);
}
- intel_mark_fb_busy(dev, obj->frontbuffer_bits, ring);
-
intel_psr_invalidate(dev, obj->frontbuffer_bits);
intel_edp_drrs_invalidate(dev, obj->frontbuffer_bits);
intel_fbc_invalidate(dev_priv, obj->frontbuffer_bits, origin);
* intel_frontbuffer_flush - flush frontbuffer
* @dev: DRM device
* @frontbuffer_bits: frontbuffer plane tracking bits
+ * @origin: which operation caused the flush
*
* This function gets called every time rendering on the given planes has
* completed and frontbuffer caching can be started again. Flushes will get
*
* Can be called without any locks held.
*/
-void intel_frontbuffer_flush(struct drm_device *dev,
- unsigned frontbuffer_bits)
+static void intel_frontbuffer_flush(struct drm_device *dev,
+ unsigned frontbuffer_bits,
+ enum fb_op_origin origin)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = to_i915(dev);
/* Delay flushing when rings are still busy.*/
mutex_lock(&dev_priv->fb_tracking.lock);
frontbuffer_bits &= ~dev_priv->fb_tracking.busy_bits;
mutex_unlock(&dev_priv->fb_tracking.lock);
- intel_mark_fb_busy(dev, frontbuffer_bits, NULL);
+ if (!frontbuffer_bits)
+ return;
intel_edp_drrs_flush(dev, frontbuffer_bits);
- intel_psr_flush(dev, frontbuffer_bits);
- intel_fbc_flush(dev_priv, frontbuffer_bits);
+ intel_psr_flush(dev, frontbuffer_bits, origin);
+ intel_fbc_flush(dev_priv, frontbuffer_bits, origin);
}
/**
* intel_fb_obj_flush - flush frontbuffer object
* @obj: GEM object to flush
* @retire: set when retiring asynchronous rendering
+ * @origin: which operation caused the flush
*
* This function gets called every time rendering on the given object has
* completed and frontbuffer caching can be started again. If @retire is true
* then any delayed flushes will be unblocked.
*/
void intel_fb_obj_flush(struct drm_i915_gem_object *obj,
- bool retire)
+ bool retire, enum fb_op_origin origin)
{
struct drm_device *dev = obj->base.dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = to_i915(dev);
unsigned frontbuffer_bits;
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
mutex_unlock(&dev_priv->fb_tracking.lock);
}
- intel_frontbuffer_flush(dev, frontbuffer_bits);
+ intel_frontbuffer_flush(dev, frontbuffer_bits, origin);
}
/**
void intel_frontbuffer_flip_prepare(struct drm_device *dev,
unsigned frontbuffer_bits)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = to_i915(dev);
mutex_lock(&dev_priv->fb_tracking.lock);
dev_priv->fb_tracking.flip_bits |= frontbuffer_bits;
/* Remove stale busy bits due to the old buffer. */
dev_priv->fb_tracking.busy_bits &= ~frontbuffer_bits;
mutex_unlock(&dev_priv->fb_tracking.lock);
+
+ intel_psr_single_frame_update(dev, frontbuffer_bits);
}
/**
void intel_frontbuffer_flip_complete(struct drm_device *dev,
unsigned frontbuffer_bits)
{
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_i915_private *dev_priv = to_i915(dev);
mutex_lock(&dev_priv->fb_tracking.lock);
/* Mask any cancelled flips. */
dev_priv->fb_tracking.flip_bits &= ~frontbuffer_bits;
mutex_unlock(&dev_priv->fb_tracking.lock);
- intel_frontbuffer_flush(dev, frontbuffer_bits);
+ intel_frontbuffer_flush(dev, frontbuffer_bits, ORIGIN_FLIP);
+}
+
+/**
+ * intel_frontbuffer_flip - synchronous frontbuffer flip
+ * @dev: DRM device
+ * @frontbuffer_bits: frontbuffer plane tracking bits
+ *
+ * This function gets called after scheduling a flip on @obj. This is for
+ * synchronous plane updates which will happen on the next vblank and which will
+ * not get delayed by pending gpu rendering.
+ *
+ * Can be called without any locks held.
+ */
+void intel_frontbuffer_flip(struct drm_device *dev,
+ unsigned frontbuffer_bits)
+{
+ struct drm_i915_private *dev_priv = to_i915(dev);
+
+ mutex_lock(&dev_priv->fb_tracking.lock);
+ /* Remove stale busy bits due to the old buffer. */
+ dev_priv->fb_tracking.busy_bits &= ~frontbuffer_bits;
+ mutex_unlock(&dev_priv->fb_tracking.lock);
+
+ intel_frontbuffer_flush(dev, frontbuffer_bits, ORIGIN_FLIP);
}
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