We already have logging for ADDFB2. Add some logging for RMFB as
well.
This can be handy when trying to find out why a CRTC gets magically
disabled.
v2: make log message more explicit, add log messages to
drm_framebuffer_remove (Daniel)
Signed-off-by: Simon Ser <contact@xxxxxxxxxxx>
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
---
drivers/gpu/drm/drm_framebuffer.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
index 4d01464b6f95..d3d09aba9833 100644
--- a/drivers/gpu/drm/drm_framebuffer.c
+++ b/drivers/gpu/drm/drm_framebuffer.c
@@ -404,6 +404,9 @@ static void drm_mode_rmfb_work_fn(struct work_struct *w)
struct drm_framebuffer *fb =
list_first_entry(&arg->fbs, typeof(*fb), filp_head);
+ drm_dbg_kms(fb->dev,
+ "Removing [FB:%d] from all active usage due to RMFB ioctl\n",
+ fb->base.id);
list_del_init(&fb->filp_head);
drm_framebuffer_remove(fb);
}
@@ -981,6 +984,10 @@ static int atomic_remove_fb(struct drm_framebuffer *fb)
if (plane->state->fb != fb)
continue;
+ drm_dbg_kms(dev,
+ "Disabling [PLANE:%d:%s] because [FB:%d] is removed\n",
+ plane->base.id, plane->name, fb->base.id);
+
plane_state = drm_atomic_get_plane_state(state, plane);
if (IS_ERR(plane_state)) {
ret = PTR_ERR(plane_state);
@@ -990,6 +997,11 @@ static int atomic_remove_fb(struct drm_framebuffer *fb)
if (disable_crtcs && plane_state->crtc->primary == plane) {
struct drm_crtc_state *crtc_state;
+ drm_dbg_kms(dev,
+ "Disabling [CRTC:%d:%s] because [FB:%d] is removed\n",
+ plane_state->crtc->base.id,
+ plane_state->crtc->name, fb->base.id);
+
crtc_state = drm_atomic_get_existing_crtc_state(state, plane_state->crtc);
ret = drm_atomic_add_affected_connectors(state, plane_state->crtc);
@@ -1052,6 +1064,10 @@ static void legacy_remove_fb(struct drm_framebuffer *fb)
/* remove from any CRTC */
drm_for_each_crtc(crtc, dev) {
if (crtc->primary->fb == fb) {
+ drm_dbg_kms(dev,
+ "Disabling [CRTC:%d:%s] because [FB:%d] is removed\n",
+ crtc->base.id, crtc->name, fb->base.id);
+
/* should turn off the crtc */
if (drm_crtc_force_disable(crtc))
DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc);
@@ -1059,8 +1075,12 @@ static void legacy_remove_fb(struct drm_framebuffer *fb)
}
drm_for_each_plane(plane, dev) {
- if (plane->fb == fb)
+ if (plane->fb == fb) {
+ drm_dbg_kms(dev,
+ "Disabling [PLANE:%d:%s] because [FB:%d] is removed\n",
+ plane->base.id, plane->name, fb->base.id);
drm_plane_force_disable(plane);
+ }
}
drm_modeset_unlock_all(dev);
}
--
2.32.0
