From: Maxime Ripard <mripard@xxxxxxxxxx>
DLIST generation can get pretty tricky and there's not a lot of debug in
the driver to help. Let's add a few more to track the generated DLIST
size.
Signed-off-by: Maxime Ripard <mripard@xxxxxxxxxx>
Signed-off-by: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/vc4/vc4_hvs.c | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
index 267c9fde7362..189d00fcf4c2 100644
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -456,11 +456,21 @@ int vc4_hvs_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state)
if (hweight32(crtc_state->connector_mask) > 1)
return -EINVAL;
- drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, crtc_state)
- dlist_count += vc4_plane_dlist_size(plane_state);
+ drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, crtc_state) {
+ u32 plane_dlist_count = vc4_plane_dlist_size(plane_state);
+
+ drm_dbg_driver(dev, "[CRTC:%d:%s] Found [PLANE:%d:%s] with DLIST size: %u\n",
+ crtc->base.id, crtc->name,
+ plane->base.id, plane->name,
+ plane_dlist_count);
+
+ dlist_count += plane_dlist_count;
+ }
dlist_count++; /* Account for SCALER_CTL0_END. */
+ drm_dbg_driver(dev, "[CRTC:%d:%s] Allocating DLIST block with size: %u\n",
+ crtc->base.id, crtc->name, dlist_count);
spin_lock_irqsave(&vc4->hvs->mm_lock, flags);
ret = drm_mm_insert_node(&vc4->hvs->dlist_mm, &vc4_state->mm,
dlist_count);
--
2.34.1
