[Intel-gfx] [PATCH v2 11/14] drm/i915: Remove some post-commit members from intel_crtc->atomic.

[Maarten Lankhorst]

fb_bits is useful to have in the crtc_state for cs flips later on,
so keep it alive there. The other stuff can be calculated in
post_plane_update, and aren't useful elsewhere.

Currently there's a loop in post_plane_update, this should disappear
with the changes to atomic wm's. At that point only updates to the
primary plane are important.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_atomic.c  |  1 +
 drivers/gpu/drm/i915/intel_display.c | 29 ++++++++++++++++++++---------
 drivers/gpu/drm/i915/intel_drv.h     |  3 +--
 3 files changed, 22 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index 2ba0cd698f9b..d890f5f63240 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -98,6 +98,7 @@ intel_crtc_duplicate_state(struct drm_crtc *crtc)
 	crtc_state->visible_changed = false;
 	crtc_state->wm_changed = false;
 	crtc_state->fb_changed = false;
+	crtc_state->fb_bits = 0;
 
 	return &crtc_state->base;
 }
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 77fe1d75404b..c42e87c62133 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -4742,15 +4742,20 @@ intel_pre_disable_primary(struct drm_crtc *crtc)
 	hsw_disable_ips(intel_crtc);
 }
 
-static void intel_post_plane_update(struct intel_crtc *crtc)
+static void intel_post_plane_update(struct intel_crtc_state *old_crtc_state)
 {
+	struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->base.crtc);
+	struct drm_atomic_state *old_state = old_crtc_state->base.state;
 	struct intel_crtc_atomic_commit *atomic = &crtc->atomic;
 	struct intel_crtc_state *pipe_config =
 		to_intel_crtc_state(crtc->base.state);
 	struct drm_device *dev = crtc->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct drm_plane *primary = crtc->base.primary;
+	struct drm_plane_state *old_pri_state =
+		drm_atomic_get_existing_plane_state(old_state, primary);
 
-	intel_frontbuffer_flip(dev, atomic->fb_bits);
+	intel_frontbuffer_flip(dev, pipe_config->fb_bits);
 
 	crtc->wm.cxsr_allowed = true;
 
@@ -4760,8 +4765,17 @@ static void intel_post_plane_update(struct intel_crtc *crtc)
 	if (atomic->update_fbc)
 		intel_fbc_update(dev_priv);
 
-	if (atomic->post_enable_primary)
-		intel_post_enable_primary(&crtc->base);
+	if (old_pri_state) {
+		struct intel_plane_state *primary_state =
+			to_intel_plane_state(primary->state);
+		struct intel_plane_state *old_primary_state =
+			to_intel_plane_state(old_pri_state);
+
+		if (primary_state->visible &&
+		    (needs_modeset(&pipe_config->base) ||
+		     !old_primary_state->visible))
+			intel_post_enable_primary(&crtc->base);
+	}
 
 	memset(atomic, 0, sizeof(*atomic));
 }
@@ -11685,13 +11699,10 @@ int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
 	}
 
 	if (visible || was_visible)
-		intel_crtc->atomic.fb_bits |=
-			to_intel_plane(plane)->frontbuffer_bit;
+		pipe_config->fb_bits |= to_intel_plane(plane)->frontbuffer_bit;
 
 	switch (plane->type) {
 	case DRM_PLANE_TYPE_PRIMARY:
-		intel_crtc->atomic.post_enable_primary = turn_on;
-
 		if (turn_off)
 			intel_crtc->atomic.disable_fbc = true;
 
@@ -13389,7 +13400,7 @@ static int intel_atomic_commit(struct drm_device *dev,
 	intel_atomic_wait_for_vblanks(dev, dev_priv, crtc_vblank_mask);
 
 	for_each_crtc_in_state(state, crtc, crtc_state, i)
-		intel_post_plane_update(to_intel_crtc(crtc));
+		intel_post_plane_update(to_intel_crtc_state(crtc_state));
 
 	mutex_lock(&dev->struct_mutex);
 	drm_atomic_helper_cleanup_planes(dev, state);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index dc024c27ca1e..aceeeccec09b 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -372,6 +372,7 @@ struct intel_crtc_state {
 #define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS	(1<<0) /* unreliable sync mode.flags */
 	unsigned long quirks;
 
+	unsigned fb_bits; /* framebuffers to flip */
 	bool update_pipe; /* can a fast modeset be performed? */
 	bool visible_changed; /* plane visibility changed */
 	bool wm_changed; /* wm changed */
@@ -539,9 +540,7 @@ struct intel_crtc_atomic_commit {
 	bool disable_fbc;
 
 	/* Sleepable operations to perform after commit */
-	unsigned fb_bits;
 	bool update_fbc;
-	bool post_enable_primary;
 };
 
 struct intel_crtc {
-- 
2.1.0