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drm/monitor: Remove primary_drm

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This field is not used anymore. This also gives us the opportunity to
clean up backend autocreation.
This commit is contained in:
Alexander Orzechowski 2024-01-28 17:50:18 -05:00
parent dc7855f674
commit 873ce330a7
3 changed files with 14 additions and 36 deletions
Download patch file Download diff file Expand all files Collapse all files

31
backend/backend.c
View file

@ -240,23 +240,23 @@ static struct wlr_backend *attempt_headless_backend(struct wl_event_loop *loop)
return backend;
}
static struct wlr_backend *attempt_drm_backend(struct wlr_backend *backend, struct wlr_session *session) {
static bool attempt_drm_backend(struct wlr_backend *backend, struct wlr_session *session) {
#if WLR_HAS_DRM_BACKEND
struct wlr_device *gpus[8];
ssize_t num_gpus = wlr_session_find_gpus(session, 8, gpus);
if (num_gpus < 0) {
wlr_log(WLR_ERROR, "Failed to find GPUs");
return NULL;
return false;
}
if (num_gpus == 0) {
wlr_log(WLR_ERROR, "Found 0 GPUs, cannot create backend");
return NULL;
return false;
} else {
wlr_log(WLR_INFO, "Found %zu GPUs", num_gpus);
}
struct wlr_backend *primary_drm = NULL;
bool ok = false;
for (size_t i = 0; i < (size_t)num_gpus; ++i) {
struct wlr_backend *drm = wlr_drm_backend_create(session, gpus[i]);
if (!drm) {
@ -264,22 +264,20 @@ static struct wlr_backend *attempt_drm_backend(struct wlr_backend *backend, stru
continue;
}
if (!primary_drm) {
primary_drm = drm;
}
wlr_multi_backend_add(backend, drm);
ok = true;
}
if (!primary_drm) {
if (!ok) {
wlr_log(WLR_ERROR, "Could not successfully create backend on any GPU");
return NULL;
return false;
}
if (getenv("WLR_DRM_DEVICES") == NULL) {
drm_backend_monitor_create(backend, primary_drm, session);
drm_backend_monitor_create(backend, session);
}
return primary_drm;
return true;
#else
wlr_log(WLR_ERROR, "Cannot create DRM backend: disabled at compile-time");
return NULL;
@ -319,7 +317,7 @@ static bool attempt_backend_by_name(struct wl_event_loop *loop,
backend = attempt_libinput_backend(*session_ptr);
} else {
// attempt_drm_backend() adds the multi drm backends itself
return attempt_drm_backend(multi, *session_ptr) != NULL;
return attempt_drm_backend(multi, *session_ptr);
}
} else {
wlr_log(WLR_ERROR, "unrecognized backend '%s'", name);
@ -423,16 +421,11 @@ struct wlr_backend *wlr_backend_autocreate(struct wl_event_loop *loop,
goto error;
}
struct wlr_backend *primary_drm = attempt_drm_backend(multi, session);
if (primary_drm == NULL) {
if (!attempt_drm_backend(multi, session)) {
wlr_log(WLR_ERROR, "Failed to open any DRM device");
goto error;
}
if (!auto_backend_monitor_create(multi, primary_drm)) {
goto error;
}
success:
if (session_ptr != NULL) {
*session_ptr = session;

14
backend/drm/monitor.c
View file

@ -7,7 +7,6 @@
static void drm_backend_monitor_destroy(struct wlr_drm_backend_monitor* monitor) {
wl_list_remove(&monitor->session_add_drm_card.link);
wl_list_remove(&monitor->session_destroy.link);
wl_list_remove(&monitor->primary_drm_destroy.link);
wl_list_remove(&monitor->multi_destroy.link);
free(monitor);
}
@ -49,12 +48,6 @@ static void handle_session_destroy(struct wl_listener *listener, void *data) {
drm_backend_monitor_destroy(backend_monitor);
}
static void handle_primary_drm_destroy(struct wl_listener *listener, void *data) {
struct wlr_drm_backend_monitor *backend_monitor =
wl_container_of(listener, backend_monitor, primary_drm_destroy);
drm_backend_monitor_destroy(backend_monitor);
}
static void handle_multi_destroy(struct wl_listener *listener, void *data) {
struct wlr_drm_backend_monitor *backend_monitor =
wl_container_of(listener, backend_monitor, multi_destroy);
@ -62,8 +55,7 @@ static void handle_multi_destroy(struct wl_listener *listener, void *data) {
}
struct wlr_drm_backend_monitor *drm_backend_monitor_create(
struct wlr_backend *multi, struct wlr_backend *primary_drm,
struct wlr_session *session) {
struct wlr_backend *multi, struct wlr_session *session) {
struct wlr_drm_backend_monitor *monitor = calloc(1, sizeof(*monitor));
if (!monitor) {
wlr_log_errno(WLR_ERROR, "Allocation failed");
@ -71,7 +63,6 @@ struct wlr_drm_backend_monitor *drm_backend_monitor_create(
}
monitor->multi = multi;
monitor->primary_drm = primary_drm;
monitor->session = session;
monitor->session_add_drm_card.notify = handle_add_drm_card;
@ -80,9 +71,6 @@ struct wlr_drm_backend_monitor *drm_backend_monitor_create(
monitor->session_destroy.notify = handle_session_destroy;
wl_signal_add(&session->events.destroy, &monitor->session_destroy);
monitor->primary_drm_destroy.notify = handle_primary_drm_destroy;
wl_signal_add(&primary_drm->events.destroy, &monitor->primary_drm_destroy);
monitor->multi_destroy.notify = handle_multi_destroy;
wl_signal_add(&multi->events.destroy, &monitor->multi_destroy);

5
include/backend/drm/monitor.h
View file

@ -8,17 +8,14 @@
*/
struct wlr_drm_backend_monitor {
struct wlr_backend *multi;
struct wlr_backend *primary_drm;
struct wlr_session *session;
struct wl_listener multi_destroy;
struct wl_listener primary_drm_destroy;
struct wl_listener session_destroy;
struct wl_listener session_add_drm_card;
};
struct wlr_drm_backend_monitor *drm_backend_monitor_create(
struct wlr_backend *multi, struct wlr_backend *primary_drm,
struct wlr_session *session);
struct wlr_backend *multi, struct wlr_session *session);
#endif