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kms/impl-device: Add and remove connectors on hot plug

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Connectors may disappear and appear on hot plugs, e.g. when a docking
station is connected, so when processing a hot plug event, make sure we
remove connectors that are now gone, and add new ones that have appeared
since last time.

Fixes: https://gitlab.gnome.org/GNOME/mutter/issues/728

https://gitlab.gnome.org/GNOME/mutter/merge_requests/743
This commit is contained in:
Jonas Ådahl 2019-08-22 14:26:54 +02:00
parent 35776c5d29
commit 4cf828323d
8 changed files with 106 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
src/backends/native/meta-kms-connector-private.h
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@ -29,4 +29,7 @@ MetaKmsConnector * meta_kms_connector_new (MetaKmsImplDevice *impl_device,
drmModeConnector *drm_connector,
drmModeRes *drm_resources);
gboolean meta_kms_connector_is_same_as (MetaKmsConnector *connector,
drmModeConnector *drm_connector);
#endif /* META_KMS_CONNECTOR_PRIVATE_H */

11
src/backends/native/meta-kms-connector.c
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@ -36,6 +36,7 @@ struct _MetaKmsConnector
uint32_t id;
MetaConnectorType type;
uint32_t type_id;
char *name;
MetaKmsConnectorState *current_state;
@ -562,6 +563,15 @@ make_connector_name (drmModeConnector *drm_connector)
drm_connector->connector_type_id);
}
gboolean
meta_kms_connector_is_same_as (MetaKmsConnector *connector,
drmModeConnector *drm_connector)
{
return (connector->id == drm_connector->connector_id &&
connector->type == drm_connector->connector_type &&
connector->type_id == drm_connector->connector_type_id);
}
MetaKmsConnector *
meta_kms_connector_new (MetaKmsImplDevice *impl_device,
drmModeConnector *drm_connector,
@ -573,6 +583,7 @@ meta_kms_connector_new (MetaKmsImplDevice *impl_device,
connector->device = meta_kms_impl_device_get_device (impl_device);
connector->id = drm_connector->connector_id;
connector->type = (MetaConnectorType) drm_connector->connector_type;
connector->type_id = drm_connector->connector_type_id;
connector->name = make_connector_name (drm_connector);
find_property_ids (connector, impl_device, drm_connector);

3
src/backends/native/meta-kms-device-private.h
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@ -24,4 +24,7 @@
MetaKmsImplDevice * meta_kms_device_get_impl_device (MetaKmsDevice *device);
void meta_kms_device_update_states_in_impl (MetaKmsDevice *device,
MetaKmsUpdateStatesFlags flags);
#endif /* META_KMS_DEVICE_PRIVATE_H */

25
src/backends/native/meta-kms-device.c
View File

@ -108,6 +108,31 @@ meta_kms_device_get_primary_plane_for (MetaKmsDevice *device,
return NULL;
}
void
meta_kms_device_update_states_in_impl (MetaKmsDevice *device,
MetaKmsUpdateStatesFlags flags)
{
MetaKmsImplDevice *impl_device = meta_kms_device_get_impl_device (device);
meta_assert_in_kms_impl (device->kms);
meta_kms_impl_device_update_states (impl_device, flags);
if (flags & META_KMS_UPDATE_STATES_FLAG_HOTPLUG)
{
meta_assert_is_waiting_for_kms_impl_task (device->kms);
g_list_free (device->crtcs);
device->crtcs = meta_kms_impl_device_copy_crtcs (impl_device);
g_list_free (device->connectors);
device->connectors = meta_kms_impl_device_copy_connectors (impl_device);
g_list_free (device->planes);
device->planes = meta_kms_impl_device_copy_planes (impl_device);
}
}
static gboolean
dispatch_in_impl (MetaKmsImpl *impl,
gpointer user_data,

49
src/backends/native/meta-kms-impl-device.c
View File

@ -196,10 +196,28 @@ init_crtcs (MetaKmsImplDevice *impl_device,
impl_device->crtcs = g_list_reverse (impl_device->crtcs);
}
static void
init_connectors (MetaKmsImplDevice *impl_device,
drmModeRes *drm_resources)
static MetaKmsConnector *
find_existing_connector (MetaKmsImplDevice *impl_device,
drmModeConnector *drm_connector)
{
GList *l;
for (l = impl_device->connectors; l; l = l->next)
{
MetaKmsConnector *connector = l->data;
if (meta_kms_connector_is_same_as (connector, drm_connector))
return connector;
}
return NULL;
}
static void
update_connectors (MetaKmsImplDevice *impl_device,
drmModeRes *drm_resources)
{
GList *connectors = NULL;
unsigned int i;
for (i = 0; i < drm_resources->count_connectors; i++)
@ -212,14 +230,19 @@ init_connectors (MetaKmsImplDevice *impl_device,
if (!drm_connector)
continue;
connector = meta_kms_connector_new (impl_device, drm_connector,
drm_resources);
connector = find_existing_connector (impl_device, drm_connector);
if (connector)
connector = g_object_ref (connector);
else
connector = meta_kms_connector_new (impl_device, drm_connector,
drm_resources);
drmModeFreeConnector (drm_connector);
impl_device->connectors = g_list_prepend (impl_device->connectors,
connector);
connectors = g_list_prepend (connectors, connector);
}
impl_device->connectors = g_list_reverse (impl_device->connectors);
g_list_free_full (impl_device->connectors, g_object_unref);
impl_device->connectors = g_list_reverse (connectors);
}
static MetaKmsPlaneType
@ -295,13 +318,18 @@ init_planes (MetaKmsImplDevice *impl_device)
}
void
meta_kms_impl_device_update_states (MetaKmsImplDevice *impl_device)
meta_kms_impl_device_update_states (MetaKmsImplDevice *impl_device,
MetaKmsUpdateStatesFlags flags)
{
drmModeRes *drm_resources;
meta_assert_in_kms_impl (meta_kms_impl_get_kms (impl_device->impl));
drm_resources = drmModeGetResources (impl_device->fd);
if (flags & META_KMS_UPDATE_STATES_FLAG_HOTPLUG)
update_connectors (impl_device, drm_resources);
g_list_foreach (impl_device->crtcs, (GFunc) meta_kms_crtc_update_state,
NULL);
g_list_foreach (impl_device->connectors, (GFunc) meta_kms_connector_update_state,
@ -346,9 +374,10 @@ meta_kms_impl_device_new (MetaKmsDevice *device,
impl_device->fd = fd;
init_crtcs (impl_device, drm_resources);
init_connectors (impl_device, drm_resources);
init_planes (impl_device);
update_connectors (impl_device, drm_resources);
drmModeFreeResources (drm_resources);
impl_device->fd_source =

3
src/backends/native/meta-kms-impl-device.h
View File

@ -53,7 +53,8 @@ int meta_kms_impl_device_get_fd (MetaKmsImplDevice *impl_device);
int meta_kms_impl_device_leak_fd (MetaKmsImplDevice *impl_device);
void meta_kms_impl_device_update_states (MetaKmsImplDevice *impl_device);
void meta_kms_impl_device_update_states (MetaKmsImplDevice *impl_device,
MetaKmsUpdateStatesFlags flags);
int meta_kms_impl_device_close (MetaKmsImplDevice *impl_device);

6
src/backends/native/meta-kms-types.h
View File

@ -56,4 +56,10 @@ typedef enum _MetaKmsDeviceFlag
META_KMS_DEVICE_FLAG_PLATFORM_DEVICE = 1 << 1,
} MetaKmsDeviceFlag;
typedef enum _MetaKmsUpdateStatesFlags
{
META_KMS_UPDATE_STATES_FLAG_NONE = 0,
META_KMS_UPDATE_STATES_FLAG_HOTPLUG = 1 << 0,
} MetaKmsUpdateStatesFlags;
#endif /* META_KMS_IMPL_TYPES_H */

28
src/backends/native/meta-kms.c
View File

@ -167,7 +167,8 @@ struct _MetaKms
G_DEFINE_TYPE (MetaKms, meta_kms, G_TYPE_OBJECT)
static void
meta_kms_update_states_in_impl (MetaKms *kms);
meta_kms_update_states_in_impl (MetaKms *kms,
MetaKmsUpdateStatesFlags flags);
MetaKmsUpdate *
meta_kms_ensure_pending_update (MetaKms *kms)
@ -195,7 +196,8 @@ meta_kms_update_process_in_impl (MetaKmsImpl *impl,
ret = meta_kms_impl_process_update (impl, update, error);
if (meta_kms_update_has_mode_set (update))
meta_kms_update_states_in_impl (meta_kms_impl_get_kms (impl));
meta_kms_update_states_in_impl (meta_kms_impl_get_kms (impl),
META_KMS_UPDATE_STATES_FLAG_NONE);
return ret;
}
@ -450,7 +452,8 @@ meta_kms_is_waiting_for_impl_task (MetaKms *kms)
}
static void
meta_kms_update_states_in_impl (MetaKms *kms)
meta_kms_update_states_in_impl (MetaKms *kms,
MetaKmsUpdateStatesFlags flags)
{
GList *l;
@ -462,9 +465,8 @@ meta_kms_update_states_in_impl (MetaKms *kms)
for (l = kms->devices; l; l = l->next)
{
MetaKmsDevice *device = l->data;
MetaKmsImplDevice *impl_device = meta_kms_device_get_impl_device (device);
meta_kms_impl_device_update_states (impl_device);
meta_kms_device_update_states_in_impl (device, flags);
}
}
@ -473,20 +475,22 @@ update_states_in_impl (MetaKmsImpl *impl,
gpointer user_data,
GError **error)
{
MetaKms *kms = user_data;
MetaKms *kms = meta_kms_impl_get_kms (impl);;
MetaKmsUpdateStatesFlags flags = GPOINTER_TO_UINT (user_data);
meta_kms_update_states_in_impl (kms);
meta_kms_update_states_in_impl (kms, flags);
return TRUE;
}
static gboolean
meta_kms_update_states_sync (MetaKms *kms,
GError **error)
meta_kms_update_states_sync (MetaKms *kms,
MetaKmsUpdateStatesFlags flags,
GError **error)
{
return meta_kms_run_impl_task_sync (kms,
update_states_in_impl,
kms,
GUINT_TO_POINTER (flags),
error);
}
@ -495,7 +499,9 @@ handle_hotplug_event (MetaKms *kms)
{
g_autoptr (GError) error = NULL;
if (!meta_kms_update_states_sync (kms, &error))
if (!meta_kms_update_states_sync (kms,
META_KMS_UPDATE_STATES_FLAG_HOTPLUG,
&error))
g_warning ("Updating KMS state failed: %s", error->message);
}