[PATCH 20/22] drm/i915: Refactor __intel_atomic_commit_tail()

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Split intel_atomic_commit_tail() into a lower level function that does
the actual commit, and a higher level one that waits for the
dependencies and signals the commit as done. We'll reuse the lower
level function to perform commits during GPU resets.

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0ff3f254ee58..e9c85d7cbb3e 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13021,7 +13021,7 @@ static void intel_atomic_helper_free_state_worker(struct work_struct *work)
 	intel_atomic_helper_free_state(dev_priv);
 }
 
-static void intel_atomic_commit_tail(struct drm_atomic_state *state)
+static void __intel_atomic_commit_tail(struct drm_atomic_state *state)
 {
 	struct drm_device *dev = state->dev;
 	struct intel_atomic_state *intel_state = to_intel_atomic_state(state);
@@ -13034,8 +13034,6 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 	unsigned crtc_vblank_mask = 0;
 	int i;
 
-	drm_atomic_helper_wait_for_dependencies(state);
-
 	if (intel_state->modeset)
 		intel_display_power_get(dev_priv, POWER_DOMAIN_MODESET);
 
@@ -13160,8 +13158,6 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 	if (intel_state->modeset && intel_can_enable_sagv(state))
 		intel_enable_sagv(dev_priv);
 
-	drm_atomic_helper_commit_hw_done(state);
-
 	if (intel_state->modeset) {
 		/* As one of the primary mmio accessors, KMS has a high
 		 * likelihood of triggering bugs in unclaimed access. After we
@@ -13172,6 +13168,18 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 		intel_uncore_arm_unclaimed_mmio_detection(dev_priv);
 		intel_display_power_put(dev_priv, POWER_DOMAIN_MODESET);
 	}
+}
+
+static void intel_atomic_commit_tail(struct drm_atomic_state *state)
+{
+	struct drm_device *dev = state->dev;
+	struct drm_i915_private *dev_priv = to_i915(dev);
+
+	drm_atomic_helper_wait_for_dependencies(state);
+
+	__intel_atomic_commit_tail(state);
+
+	drm_atomic_helper_commit_hw_done(state);
 
 	mutex_lock(&dev->struct_mutex);
 	drm_atomic_helper_cleanup_planes(dev, state);
-- 
2.13.0

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