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Subject[PATCH v3 17/44] drm/nouveau/kms/nv50-: keep output state around until modeset complete
Date
From: Ben Skeggs <bskeggs@redhat.com>

- we'll want this info post-UPDATE for later patches

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Acked-by: Danilo Krummrich <me@dakr.org>
Signed-off-by: Lyude Paul <lyude@redhat.com>
---
drivers/gpu/drm/nouveau/dispnv50/disp.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index a72cb74184472..8fa3bb8c2f41e 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -2080,7 +2080,7 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
nv50_crc_atomic_init_notifier_contexts(state);

/* Update output path(s). */
- list_for_each_entry_safe(outp, outt, &atom->outp, head) {
+ list_for_each_entry(outp, &atom->outp, head) {
const struct drm_encoder_helper_funcs *help;
struct drm_encoder *encoder;

@@ -2094,9 +2094,6 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
help->atomic_enable(encoder, state);
interlock[NV50_DISP_INTERLOCK_CORE] = 1;
}
-
- list_del(&outp->head);
- kfree(outp);
}

/* Update head(s). */
@@ -2194,6 +2191,11 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state)
if (atom->lock_core)
mutex_unlock(&disp->mutex);

+ list_for_each_entry_safe(outp, outt, &atom->outp, head) {
+ list_del(&outp->head);
+ kfree(outp);
+ }
+
/* Wait for HW to signal completion. */
for_each_new_plane_in_state(state, plane, new_plane_state, i) {
struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
--
2.41.0
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