drm/{i915, xe}: move xe_display_flush_cleanup_work() to i915 display

xe_display_flush_cleanup_work() is a bit of an oddball function in xe
display code. There shouldn't be anything this specific or xe
specific. While I'm not sure what the correct refactor for the function
should be, move it to shared display code for starters, next to the
eerily similar but slightly different intel_has_pending_fb_unpin() that
is only called from i915 core.

The main goal here is to unblock some refactors on
for_each_intel_crtc().

v2: Add FIXME comment (Ville)

Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260525110553.651208-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

3 files changed, 26 insertions, 24 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 6c8935f69db1..648155296fd2 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -737,6 +737,28 @@ bool intel_has_pending_fb_unpin(struct intel_display *display)
 	return false;
 }
 
+/* FIXME: remove this and just flush the cleanup wq where appropriate */
+void intel_display_flush_cleanup_work(struct intel_display *display)
+{
+	struct intel_crtc *crtc;
+
+	for_each_intel_crtc(display->drm, crtc) {
+		struct drm_crtc_commit *commit;
+
+		spin_lock(&crtc->base.commit_lock);
+		commit = list_first_entry_or_null(&crtc->base.commit_list,
+						  struct drm_crtc_commit, commit_entry);
+		if (commit)
+			drm_crtc_commit_get(commit);
+		spin_unlock(&crtc->base.commit_lock);
+
+		if (commit) {
+			wait_for_completion(&commit->cleanup_done);
+			drm_crtc_commit_put(commit);
+		}
+	}
+}
+
 /*
  * Finds the encoder associated with the given CRTC. This can only be
  * used when we know that the CRTC isn't feeding multiple encoders!
diff --git a/drivers/gpu/drm/i915/display/intel_display.h b/drivers/gpu/drm/i915/display/intel_display.h
index 45a90d2fe6ec..72f33113a5a3 100644
--- a/drivers/gpu/drm/i915/display/intel_display.h
+++ b/drivers/gpu/drm/i915/display/intel_display.h
@@ -402,6 +402,7 @@ void intel_disable_transcoder(const struct intel_crtc_state *old_crtc_state);
 void i830_enable_pipe(struct intel_display *display, enum pipe pipe);
 void i830_disable_pipe(struct intel_display *display, enum pipe pipe);
 bool intel_has_pending_fb_unpin(struct intel_display *display);
+void intel_display_flush_cleanup_work(struct intel_display *display);
 void intel_encoder_destroy(struct drm_encoder *encoder);
 struct drm_display_mode *
 intel_encoder_current_mode(struct intel_encoder *encoder);
diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c
index 75324aa82631..766811cea07d 100644
--- a/drivers/gpu/drm/xe/display/xe_display.c
+++ b/drivers/gpu/drm/xe/display/xe_display.c
@@ -265,27 +265,6 @@ static bool suspend_to_idle(void)
 	return false;
 }
 
-static void xe_display_flush_cleanup_work(struct xe_device *xe)
-{
-	struct intel_crtc *crtc;
-
-	for_each_intel_crtc(&xe->drm, crtc) {
-		struct drm_crtc_commit *commit;
-
-		spin_lock(&crtc->base.commit_lock);
-		commit = list_first_entry_or_null(&crtc->base.commit_list,
-						  struct drm_crtc_commit, commit_entry);
-		if (commit)
-			drm_crtc_commit_get(commit);
-		spin_unlock(&crtc->base.commit_lock);
-
-		if (commit) {
-			wait_for_completion(&commit->cleanup_done);
-			drm_crtc_commit_put(commit);
-		}
-	}
-}
-
 static void xe_display_enable_d3cold(struct xe_device *xe)
 {
 	struct intel_display *display = xe->display;
@@ -299,7 +278,7 @@ static void xe_display_enable_d3cold(struct xe_device *xe)
 	 */
 	intel_power_domains_disable(display);
 
-	xe_display_flush_cleanup_work(xe);
+	intel_display_flush_cleanup_work(display);
 
 	intel_opregion_suspend(display, PCI_D3cold);
 
@@ -354,7 +333,7 @@ void xe_display_pm_suspend(struct xe_device *xe)
 		intel_display_driver_suspend(display);
 	}
 
-	xe_display_flush_cleanup_work(xe);
+	intel_display_flush_cleanup_work(display);
 
 	intel_encoder_block_all_hpds(display);
 
@@ -386,7 +365,7 @@ void xe_display_pm_shutdown(struct xe_device *xe)
 		intel_display_driver_suspend(display);
 	}
 
-	xe_display_flush_cleanup_work(xe);
+	intel_display_flush_cleanup_work(display);
 	intel_dp_mst_suspend(display);
 	intel_encoder_block_all_hpds(display);
 	intel_hpd_cancel_work(display);