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drm: Rename connector list iterator API 

Currently the functions that initialize and tear down a connector
iterator use the _get() and _put() suffixes. However, these suffixes
are typically used by reference counting functions.

Make these function names a little more consistent by changing the
suffixes to _begin() and _end(), which is a fairly common pattern in
the rest of the Linux kernel.

Suggested-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170228144643.5668-8-thierry.reding@gmail.com
This commit is contained in:
Thierry Reding 2017-02-28 15:46:43 +01:00
Родитель 6472e5090b
Коммит b982dab1e6
10 изменённых файлов: 70 добавлений и 70 удалений
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10
drivers/gpu/drm/drm_atomic.c
Просмотреть файл

@ -1449,18 +1449,18 @@ drm_atomic_add_affected_connectors(struct drm_atomic_state *state,
* Changed connectors are already in @state, so only need to look
* at the connector_mask in crtc_state.
*/
drm_connector_list_iter_get(state->dev, &conn_iter);
drm_connector_list_iter_begin(state->dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (!(crtc_state->connector_mask & (1 << drm_connector_index(connector))))
continue;
conn_state = drm_atomic_get_connector_state(state, connector);
if (IS_ERR(conn_state)) {
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return PTR_ERR(conn_state);
}
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return 0;
}
@ -1722,10 +1722,10 @@ void drm_state_dump(struct drm_device *dev, struct drm_printer *p)
list_for_each_entry(crtc, &config->crtc_list, head)
drm_atomic_crtc_print_state(p, crtc->state);
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
drm_atomic_connector_print_state(p, connector->state);
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
}
EXPORT_SYMBOL(drm_state_dump);

14
drivers/gpu/drm/drm_atomic_helper.c
Просмотреть файл

@ -145,7 +145,7 @@ static int handle_conflicting_encoders(struct drm_atomic_state *state,
* and the crtc is disabled if no encoder is left. This preserves
* compatibility with the legacy set_config behavior.
*/
drm_connector_list_iter_get(state->dev, &conn_iter);
drm_connector_list_iter_begin(state->dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
struct drm_crtc_state *crtc_state;
@ -193,7 +193,7 @@ static int handle_conflicting_encoders(struct drm_atomic_state *state,
}
}
out:
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return ret;
}
@ -3018,7 +3018,7 @@ retry:
WARN_ON(!drm_modeset_is_locked(&config->connection_mutex));
drm_connector_list_iter_get(connector->dev, &conn_iter);
drm_connector_list_iter_begin(connector->dev, &conn_iter);
drm_for_each_connector_iter(tmp_connector, &conn_iter) {
if (tmp_connector->state->crtc != crtc)
continue;
@ -3028,7 +3028,7 @@ retry:
break;
}
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
crtc_state->active = active;
ret = drm_atomic_commit(state);
@ -3439,18 +3439,18 @@ drm_atomic_helper_duplicate_state(struct drm_device *dev,
}
}
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(conn, &conn_iter) {
struct drm_connector_state *conn_state;
conn_state = drm_atomic_get_connector_state(state, conn);
if (IS_ERR(conn_state)) {
err = PTR_ERR(conn_state);
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
goto free;
}
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
/* clear the acquire context so that it isn't accidentally reused */
state->acquire_ctx = NULL;

24
drivers/gpu/drm/drm_connector.c
Просмотреть файл

@ -435,10 +435,10 @@ void drm_connector_unregister_all(struct drm_device *dev)
struct drm_connector *connector;
struct drm_connector_list_iter conn_iter;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
drm_connector_unregister(connector);
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
}
int drm_connector_register_all(struct drm_device *dev)
@ -447,13 +447,13 @@ int drm_connector_register_all(struct drm_device *dev)
struct drm_connector_list_iter conn_iter;
int ret = 0;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
ret = drm_connector_register(connector);
if (ret)
break;
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
if (ret)
drm_connector_unregister_all(dev);
@ -507,23 +507,23 @@ static struct lockdep_map connector_list_iter_dep_map = {
#endif
/**
* drm_connector_list_iter_get - initialize a connector_list iterator
* drm_connector_list_iter_begin - initialize a connector_list iterator
* @dev: DRM device
* @iter: connector_list iterator
*
* Sets @iter up to walk the &drm_mode_config.connector_list of @dev. @iter
* must always be cleaned up again by calling drm_connector_list_iter_put().
* must always be cleaned up again by calling drm_connector_list_iter_end().
* Iteration itself happens using drm_connector_list_iter_next() or
* drm_for_each_connector_iter().
*/
void drm_connector_list_iter_get(struct drm_device *dev,
struct drm_connector_list_iter *iter)
void drm_connector_list_iter_begin(struct drm_device *dev,
struct drm_connector_list_iter *iter)
{
iter->dev = dev;
iter->conn = NULL;
lock_acquire_shared_recursive(&connector_list_iter_dep_map, 0, 1, NULL, _RET_IP_);
}
EXPORT_SYMBOL(drm_connector_list_iter_get);
EXPORT_SYMBOL(drm_connector_list_iter_begin);
/**
* drm_connector_list_iter_next - return next connector
@ -564,7 +564,7 @@ drm_connector_list_iter_next(struct drm_connector_list_iter *iter)
EXPORT_SYMBOL(drm_connector_list_iter_next);
/**
* drm_connector_list_iter_put - tear down a connector_list iterator
* drm_connector_list_iter_end - tear down a connector_list iterator
* @iter: connector_list iterator
*
* Tears down @iter and releases any resources (like &drm_connector references)
@ -572,14 +572,14 @@ EXPORT_SYMBOL(drm_connector_list_iter_next);
* iteration completes fully or when it was aborted without walking the entire
* list.
*/
void drm_connector_list_iter_put(struct drm_connector_list_iter *iter)
void drm_connector_list_iter_end(struct drm_connector_list_iter *iter)
{
iter->dev = NULL;
if (iter->conn)
drm_connector_put(iter->conn);
lock_release(&connector_list_iter_dep_map, 0, _RET_IP_);
}
EXPORT_SYMBOL(drm_connector_list_iter_put);
EXPORT_SYMBOL(drm_connector_list_iter_end);
static const struct drm_prop_enum_list drm_subpixel_enum_list[] = {
{ SubPixelUnknown, "Unknown" },

36
drivers/gpu/drm/drm_crtc_helper.c
Просмотреть файл

@ -102,14 +102,14 @@ bool drm_helper_encoder_in_use(struct drm_encoder *encoder)
}
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (connector->encoder == encoder) {
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return true;
}
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return false;
}
EXPORT_SYMBOL(drm_helper_encoder_in_use);
@ -449,7 +449,7 @@ drm_crtc_helper_disable(struct drm_crtc *crtc)
if (encoder->crtc != crtc)
continue;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (connector->encoder != encoder)
continue;
@ -467,7 +467,7 @@ drm_crtc_helper_disable(struct drm_crtc *crtc)
/* we keep a reference while the encoder is bound */
drm_connector_put(connector);
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
}
__drm_helper_disable_unused_functions(dev);
@ -583,10 +583,10 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
}
count = 0;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
save_connector_encoders[count++] = connector->encoder;
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
save_set.crtc = set->crtc;
save_set.mode = &set->crtc->mode;
@ -628,7 +628,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
/* a) traverse passed in connector list and get encoders for them */
count = 0;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
const struct drm_connector_helper_funcs *connector_funcs =
connector->helper_private;
@ -662,7 +662,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
connector->encoder = new_encoder;
}
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
if (fail) {
ret = -EINVAL;
@ -670,7 +670,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
}
count = 0;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (!connector->encoder)
continue;
@ -689,7 +689,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
if (new_crtc &&
!drm_encoder_crtc_ok(connector->encoder, new_crtc)) {
ret = -EINVAL;
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
goto fail;
}
if (new_crtc != connector->encoder->crtc) {
@ -706,7 +706,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
connector->base.id, connector->name);
}
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
/* mode_set_base is not a required function */
if (fb_changed && !crtc_funcs->mode_set_base)
@ -761,10 +761,10 @@ fail:
}
count = 0;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
connector->encoder = save_connector_encoders[count++];
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
/* after fail drop reference on all unbound connectors in set, let
* bound connectors keep their reference
@ -794,12 +794,12 @@ static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder)
struct drm_connector_list_iter conn_iter;
struct drm_device *dev = encoder->dev;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
if (connector->encoder == encoder)
if (connector->dpms < dpms)
dpms = connector->dpms;
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return dpms;
}
@ -835,12 +835,12 @@ static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc)
struct drm_connector_list_iter conn_iter;
struct drm_device *dev = crtc->dev;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
if (connector->encoder && connector->encoder->crtc == crtc)
if (connector->dpms < dpms)
dpms = connector->dpms;
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return dpms;
}

6
drivers/gpu/drm/drm_encoder.c
Просмотреть файл

@ -188,7 +188,7 @@ static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder)
/* For atomic drivers only state objects are synchronously updated and
* protected by modeset locks, so check those first. */
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (!connector->state)
continue;
@ -198,10 +198,10 @@ static struct drm_crtc *drm_encoder_get_crtc(struct drm_encoder *encoder)
if (connector->state->best_encoder != encoder)
continue;
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return connector->state->crtc;
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
/* Don't return stale data (e.g. pending async disable). */
if (uses_atomic)

4
drivers/gpu/drm/drm_fb_helper.c
Просмотреть файл

@ -134,7 +134,7 @@ int drm_fb_helper_single_add_all_connectors(struct drm_fb_helper *fb_helper)
return 0;
mutex_lock(&dev->mode_config.mutex);
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
ret = drm_fb_helper_add_one_connector(fb_helper, connector);
@ -155,7 +155,7 @@ fail:
}
fb_helper->connector_count = 0;
out:
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
mutex_unlock(&dev->mode_config.mutex);
return ret;

18
drivers/gpu/drm/drm_mode_config.c
Просмотреть файл

@ -139,19 +139,19 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
}
card_res->count_encoders = count;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
count = 0;
connector_id = u64_to_user_ptr(card_res->connector_id_ptr);
drm_for_each_connector_iter(connector, &conn_iter) {
if (count < card_res->count_connectors &&
put_user(connector->base.id, connector_id + count)) {
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return -EFAULT;
}
count++;
}
card_res->count_connectors = count;
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return ret;
}
@ -184,11 +184,11 @@ void drm_mode_config_reset(struct drm_device *dev)
if (encoder->funcs->reset)
encoder->funcs->reset(encoder);
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
if (connector->funcs->reset)
connector->funcs->reset(connector);
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
}
EXPORT_SYMBOL(drm_mode_config_reset);
@ -412,7 +412,7 @@ void drm_mode_config_cleanup(struct drm_device *dev)
encoder->funcs->destroy(encoder);
}
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
/* drm_connector_list_iter holds an full reference to the
* current connector itself, which means it is inherently safe
@ -420,12 +420,12 @@ void drm_mode_config_cleanup(struct drm_device *dev)
* deleting it right away. */
drm_connector_put(connector);
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
if (WARN_ON(!list_empty(&dev->mode_config.connector_list))) {
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter)
DRM_ERROR("connector %s leaked!\n", connector->name);
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
}
list_for_each_entry_safe(property, pt, &dev->mode_config.property_list,

4
drivers/gpu/drm/drm_plane_helper.c
Просмотреть файл

@ -85,7 +85,7 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc,
*/
WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex));
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (connector->encoder && connector->encoder->crtc == crtc) {
if (connector_list != NULL && count < num_connectors)
@ -94,7 +94,7 @@ static int get_connectors_for_crtc(struct drm_crtc *crtc,
count++;
}
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
return count;
}

12
drivers/gpu/drm/drm_probe_helper.c
Просмотреть файл

@ -140,13 +140,13 @@ void drm_kms_helper_poll_enable(struct drm_device *dev)
if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll)
return;
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT |
DRM_CONNECTOR_POLL_DISCONNECT))
poll = true;
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
if (dev->mode_config.delayed_event) {
/*
@ -420,7 +420,7 @@ static void output_poll_execute(struct work_struct *work)
goto out;
}
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
/* Ignore forced connectors. */
if (connector->force)
@ -474,7 +474,7 @@ static void output_poll_execute(struct work_struct *work)
changed = true;
}
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
mutex_unlock(&dev->mode_config.mutex);
@ -580,7 +580,7 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev)
return false;
mutex_lock(&dev->mode_config.mutex);
drm_connector_list_iter_get(dev, &conn_iter);
drm_connector_list_iter_begin(dev, &conn_iter);
drm_for_each_connector_iter(connector, &conn_iter) {
/* Only handle HPD capable connectors. */
if (!(connector->polled & DRM_CONNECTOR_POLL_HPD))
@ -597,7 +597,7 @@ bool drm_helper_hpd_irq_event(struct drm_device *dev)
if (old_status != connector->status)
changed = true;
}
drm_connector_list_iter_put(&conn_iter);
drm_connector_list_iter_end(&conn_iter);
mutex_unlock(&dev->mode_config.mutex);
if (changed)

12
include/drm/drm_connector.h
Просмотреть файл

@ -926,7 +926,7 @@ void drm_mode_put_tile_group(struct drm_device *dev,
*
* This iterator tracks state needed to be able to walk the connector_list
* within struct drm_mode_config. Only use together with
* drm_connector_list_iter_get(), drm_connector_list_iter_put() and
* drm_connector_list_iter_begin(), drm_connector_list_iter_end() and
* drm_connector_list_iter_next() respectively the convenience macro
* drm_for_each_connector_iter().
*/
@ -936,11 +936,11 @@ struct drm_connector_list_iter {
struct drm_connector *conn;
};
void drm_connector_list_iter_get(struct drm_device *dev,
struct drm_connector_list_iter *iter);
void drm_connector_list_iter_begin(struct drm_device *dev,
struct drm_connector_list_iter *iter);
struct drm_connector *
drm_connector_list_iter_next(struct drm_connector_list_iter *iter);
void drm_connector_list_iter_put(struct drm_connector_list_iter *iter);
void drm_connector_list_iter_end(struct drm_connector_list_iter *iter);
/**
* drm_for_each_connector_iter - connector_list iterator macro
@ -948,8 +948,8 @@ void drm_connector_list_iter_put(struct drm_connector_list_iter *iter);
* @iter: &struct drm_connector_list_iter
*
* Note that @connector is only valid within the list body, if you want to use
* @connector after calling drm_connector_list_iter_put() then you need to grab
* your own reference first using drm_connector_get().
* @connector after calling drm_connector_list_iter_end() then you need to grab
* your own reference first using drm_connector_begin().
*/
#define drm_for_each_connector_iter(connector, iter) \
while ((connector = drm_connector_list_iter_next(iter)))