#define DIV_ROUND_CLOSEST_ULL(ll, d) \
({ unsigned long long _tmp = (ll)+(d)/2; do_div(_tmp, d); _tmp; })
-static void intel_increase_pllclock(struct drm_device *dev,
- enum pipe pipe);
static void intel_crtc_update_cursor(struct drm_crtc *crtc, bool on);
static void i9xx_crtc_clock_get(struct intel_crtc *crtc,
state_string(state), state_string(cur_state));
}
-static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
- enum pipe pipe)
+void assert_panel_unlocked(struct drm_i915_private *dev_priv,
+ enum pipe pipe)
{
struct drm_device *dev = dev_priv->dev;
int pp_reg;
if (dev_priv->display.disable_fbc)
dev_priv->display.disable_fbc(dev);
- intel_increase_pllclock(dev, to_intel_crtc(crtc)->pipe);
dev_priv->display.update_primary_plane(crtc, fb, x, y);
return mode;
}
-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");
- }
-}
-
static void intel_decrease_pllclock(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
intel_runtime_pm_put(dev_priv);
}
-
-/**
- * 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;
-
- if (!i915.powersave)
- return;
-
- for_each_pipe(dev_priv, pipe) {
- if (!(frontbuffer_bits & INTEL_FRONTBUFFER_ALL_MASK(pipe)))
- continue;
-
- intel_increase_pllclock(dev, pipe);
- if (ring && intel_fbc_enabled(dev))
- ring->fbc_dirty = true;
- }
-}
-
-/**
- * intel_fb_obj_invalidate - invalidate frontbuffer object
- * @obj: GEM object to invalidate
- * @ring: set for asynchronous rendering
- *
- * 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
- * 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)
-{
- struct drm_device *dev = obj->base.dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- WARN_ON(!mutex_is_locked(&dev->struct_mutex));
-
- if (!obj->frontbuffer_bits)
- return;
-
- if (ring) {
- mutex_lock(&dev_priv->fb_tracking.lock);
- dev_priv->fb_tracking.busy_bits
- |= obj->frontbuffer_bits;
- dev_priv->fb_tracking.flip_bits
- &= ~obj->frontbuffer_bits;
- mutex_unlock(&dev_priv->fb_tracking.lock);
- }
-
- intel_mark_fb_busy(dev, obj->frontbuffer_bits, ring);
-
- intel_edp_psr_invalidate(dev, obj->frontbuffer_bits);
-}
-
-/**
- * intel_frontbuffer_flush - flush frontbuffer
- * @dev: DRM device
- * @frontbuffer_bits: frontbuffer plane tracking bits
- *
- * This function gets called every time rendering on the given planes has
- * completed and frontbuffer caching can be started again. Flushes will get
- * delayed if they're blocked by some oustanding asynchronous rendering.
- *
- * Can be called without any locks held.
- */
-void intel_frontbuffer_flush(struct drm_device *dev,
- unsigned frontbuffer_bits)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- /* 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);
-
- intel_edp_psr_flush(dev, frontbuffer_bits);
-
- /*
- * FIXME: Unconditional fbc flushing here is a rather gross hack and
- * needs to be reworked into a proper frontbuffer tracking scheme like
- * psr employs.
- */
- if (IS_BROADWELL(dev))
- gen8_fbc_sw_flush(dev, FBC_REND_CACHE_CLEAN);
-}
-
-/**
- * intel_fb_obj_flush - flush frontbuffer object
- * @obj: GEM object to flush
- * @retire: set when retiring asynchronous rendering
- *
- * 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)
-{
- struct drm_device *dev = obj->base.dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- unsigned frontbuffer_bits;
-
- WARN_ON(!mutex_is_locked(&dev->struct_mutex));
-
- if (!obj->frontbuffer_bits)
- return;
-
- frontbuffer_bits = obj->frontbuffer_bits;
-
- if (retire) {
- mutex_lock(&dev_priv->fb_tracking.lock);
- /* Filter out new bits since rendering started. */
- frontbuffer_bits &= dev_priv->fb_tracking.busy_bits;
-
- dev_priv->fb_tracking.busy_bits &= ~frontbuffer_bits;
- mutex_unlock(&dev_priv->fb_tracking.lock);
- }
-
- intel_frontbuffer_flush(dev, frontbuffer_bits);
-}
-
-/**
- * intel_frontbuffer_flip_prepare - prepare asnychronous frontbuffer flip
- * @dev: DRM device
- * @frontbuffer_bits: frontbuffer plane tracking bits
- *
- * This function gets called after scheduling a flip on @obj. The actual
- * frontbuffer flushing will be delayed until completion is signalled with
- * intel_frontbuffer_flip_complete. If an invalidate happens in between this
- * flush will be cancelled.
- *
- * Can be called without any locks held.
- */
-void intel_frontbuffer_flip_prepare(struct drm_device *dev,
- unsigned frontbuffer_bits)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- mutex_lock(&dev_priv->fb_tracking.lock);
- dev_priv->fb_tracking.flip_bits
- |= frontbuffer_bits;
- mutex_unlock(&dev_priv->fb_tracking.lock);
-}
-
-/**
- * intel_frontbuffer_flip_complete - complete asynchronous frontbuffer flush
- * @dev: DRM device
- * @frontbuffer_bits: frontbuffer plane tracking bits
- *
- * This function gets called after the flip has been latched and will complete
- * on the next vblank. It will execute the fush if it hasn't been cancalled yet.
- *
- * Can be called without any locks held.
- */
-void intel_frontbuffer_flip_complete(struct drm_device *dev,
- unsigned frontbuffer_bits)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
- mutex_lock(&dev_priv->fb_tracking.lock);
- /* Mask any cancelled flips. */
- frontbuffer_bits &= dev_priv->fb_tracking.flip_bits;
- dev_priv->fb_tracking.flip_bits &= ~frontbuffer_bits;
- mutex_unlock(&dev_priv->fb_tracking.lock);
-
- intel_frontbuffer_flush(dev, frontbuffer_bits);
-}
-
static void intel_crtc_destroy(struct drm_crtc *crtc)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
projects / firefly-linux-kernel-4.4.55.git / blobdiff