diff options
| author | Dave Airlie <airlied@redhat.com> | 2016-04-27 11:27:39 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-05-05 12:52:05 +1000 |
| commit | d2307dea14a4f14a4b5db01b6d40a30fa6117e6c (patch) | |
| tree | e9aa6cf0376a35ab1f19fd4c0e31aa4491433cd5 | |
| parent | 0955c1250e9699b3bdc633d778710d219c61df66 (diff) | |
drm/atomic: use connector references (v3)
Take a reference when setting a crtc on a connecter,
also take one when duplicating if a crtc is set,
and drop one on destroy if a crtc is set.
v2: take Daniel Stone's advice and simplify the
ref/unref dances, also take care of NULL as connector
to state reset.
v3: remove need for connector NULL check.
Reviewed-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/drm_atomic.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 4 |
2 files changed, 9 insertions, 9 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index e4879d34c280..86e89db02ed7 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -144,15 +144,7 @@ void drm_atomic_state_default_clear(struct drm_atomic_state *state) if (!connector) continue; - /* - * FIXME: Nonblocking commits can race with connector unplugging and - * there's currently nothing that prevents cleanup up state for - * deleted connectors. As long as the callback doesn't look at - * the connector we'll be fine though, so make sure that's the - * case by setting all connector pointers to NULL. - */ - state->connector_states[i]->connector = NULL; - connector->funcs->atomic_destroy_state(NULL, + connector->funcs->atomic_destroy_state(connector, state->connector_states[i]); state->connectors[i] = NULL; state->connector_states[i] = NULL; @@ -1168,6 +1160,8 @@ drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, { struct drm_crtc_state *crtc_state; + if (crtc) + drm_connector_reference(conn_state->connector); if (conn_state->crtc && conn_state->crtc != crtc) { crtc_state = drm_atomic_get_existing_crtc_state(conn_state->state, conn_state->crtc); @@ -1185,6 +1179,8 @@ drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state, 1 << drm_connector_index(conn_state->connector); } + if (conn_state->crtc) + drm_connector_unreference(conn_state->connector); conn_state->crtc = crtc; if (crtc) diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 92e11a2b83c8..997fd21e5388 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -2762,6 +2762,8 @@ __drm_atomic_helper_connector_duplicate_state(struct drm_connector *connector, struct drm_connector_state *state) { memcpy(state, connector->state, sizeof(*state)); + if (state->crtc) + drm_connector_reference(connector); } EXPORT_SYMBOL(__drm_atomic_helper_connector_duplicate_state); @@ -2889,6 +2891,8 @@ __drm_atomic_helper_connector_destroy_state(struct drm_connector *connector, * state will automatically do the right thing if code is ever added * to this function. */ + if (state->crtc) + drm_connector_unreference(state->connector); } EXPORT_SYMBOL(__drm_atomic_helper_connector_destroy_state); |