diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 162 |
1 files changed, 119 insertions, 43 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 24c5434abd1c..f6191215b2cb 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -45,7 +45,7 @@ static struct drm_framebuffer * internal_framebuffer_create(struct drm_device *dev, - struct drm_mode_fb_cmd2 *r, + const struct drm_mode_fb_cmd2 *r, struct drm_file *file_priv); /* Avoid boilerplate. I'm tired of typing. */ @@ -649,6 +649,18 @@ EXPORT_SYMBOL(drm_framebuffer_remove); DEFINE_WW_CLASS(crtc_ww_class); +static unsigned int drm_num_crtcs(struct drm_device *dev) +{ + unsigned int num = 0; + struct drm_crtc *tmp; + + drm_for_each_crtc(tmp, dev) { + num++; + } + + return num; +} + /** * drm_crtc_init_with_planes - Initialise a new CRTC object with * specified primary and cursor planes. @@ -657,6 +669,7 @@ DEFINE_WW_CLASS(crtc_ww_class); * @primary: Primary plane for CRTC * @cursor: Cursor plane for CRTC * @funcs: callbacks for the new CRTC + * @name: printf style format string for the CRTC name, or NULL for default name * * Inits a new object created as base part of a driver crtc object. * @@ -666,7 +679,8 @@ DEFINE_WW_CLASS(crtc_ww_class); int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, struct drm_plane *primary, struct drm_plane *cursor, - const struct drm_crtc_funcs *funcs) + const struct drm_crtc_funcs *funcs, + const char *name, ...) { struct drm_mode_config *config = &dev->mode_config; int ret; @@ -682,6 +696,21 @@ int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc, if (ret) return ret; + if (name) { + va_list ap; + + va_start(ap, name); + crtc->name = kvasprintf(GFP_KERNEL, name, ap); + va_end(ap); + } else { + crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", + drm_num_crtcs(dev)); + } + if (!crtc->name) { + drm_mode_object_put(dev, &crtc->base); + return -ENOMEM; + } + crtc->base.properties = &crtc->properties; list_add_tail(&crtc->head, &config->crtc_list); @@ -728,6 +757,8 @@ void drm_crtc_cleanup(struct drm_crtc *crtc) if (crtc->state && crtc->funcs->atomic_destroy_state) crtc->funcs->atomic_destroy_state(crtc, crtc->state); + kfree(crtc->name); + memset(crtc, 0, sizeof(*crtc)); } EXPORT_SYMBOL(drm_crtc_cleanup); @@ -887,12 +918,19 @@ int drm_connector_init(struct drm_device *dev, connector->base.properties = &connector->properties; connector->dev = dev; connector->funcs = funcs; + + connector->connector_id = ida_simple_get(&config->connector_ida, 0, 0, GFP_KERNEL); + if (connector->connector_id < 0) { + ret = connector->connector_id; + goto out_put; + } + connector->connector_type = connector_type; connector->connector_type_id = ida_simple_get(connector_ida, 1, 0, GFP_KERNEL); if (connector->connector_type_id < 0) { ret = connector->connector_type_id; - goto out_put; + goto out_put_id; } connector->name = kasprintf(GFP_KERNEL, "%s-%d", @@ -900,7 +938,7 @@ int drm_connector_init(struct drm_device *dev, connector->connector_type_id); if (!connector->name) { ret = -ENOMEM; - goto out_put; + goto out_put_type_id; } INIT_LIST_HEAD(&connector->probed_modes); @@ -928,7 +966,12 @@ int drm_connector_init(struct drm_device *dev, } connector->debugfs_entry = NULL; - +out_put_type_id: + if (ret) + ida_remove(connector_ida, connector->connector_type_id); +out_put_id: + if (ret) + ida_remove(&config->connector_ida, connector->connector_id); out_put: if (ret) drm_mode_object_put(dev, &connector->base); @@ -965,6 +1008,9 @@ void drm_connector_cleanup(struct drm_connector *connector) ida_remove(&drm_connector_enum_list[connector->connector_type].ida, connector->connector_type_id); + ida_remove(&dev->mode_config.connector_ida, + connector->connector_id); + kfree(connector->display_info.bus_formats); drm_mode_object_put(dev, &connector->base); kfree(connector->name); @@ -982,32 +1028,6 @@ void drm_connector_cleanup(struct drm_connector *connector) EXPORT_SYMBOL(drm_connector_cleanup); /** - * drm_connector_index - find the index of a registered connector - * @connector: connector to find index for - * - * Given a registered connector, return the index of that connector within a DRM - * device's list of connectors. - */ -unsigned int drm_connector_index(struct drm_connector *connector) -{ - unsigned int index = 0; - struct drm_connector *tmp; - struct drm_mode_config *config = &connector->dev->mode_config; - - WARN_ON(!drm_modeset_is_locked(&config->connection_mutex)); - - drm_for_each_connector(tmp, connector->dev) { - if (tmp == connector) - return index; - - index++; - } - - BUG(); -} -EXPORT_SYMBOL(drm_connector_index); - -/** * drm_connector_register - register a connector * @connector: the connector to register * @@ -1075,6 +1095,7 @@ EXPORT_SYMBOL(drm_connector_unplug_all); * @encoder: the encoder to init * @funcs: callbacks for this encoder * @encoder_type: user visible type of the encoder + * @name: printf style format string for the encoder name, or NULL for default name * * Initialises a preallocated encoder. Encoder should be * subclassed as part of driver encoder objects. @@ -1085,7 +1106,7 @@ EXPORT_SYMBOL(drm_connector_unplug_all); int drm_encoder_init(struct drm_device *dev, struct drm_encoder *encoder, const struct drm_encoder_funcs *funcs, - int encoder_type) + int encoder_type, const char *name, ...) { int ret; @@ -1098,9 +1119,17 @@ int drm_encoder_init(struct drm_device *dev, encoder->dev = dev; encoder->encoder_type = encoder_type; encoder->funcs = funcs; - encoder->name = kasprintf(GFP_KERNEL, "%s-%d", - drm_encoder_enum_list[encoder_type].name, - encoder->base.id); + if (name) { + va_list ap; + + va_start(ap, name); + encoder->name = kvasprintf(GFP_KERNEL, name, ap); + va_end(ap); + } else { + encoder->name = kasprintf(GFP_KERNEL, "%s-%d", + drm_encoder_enum_list[encoder_type].name, + encoder->base.id); + } if (!encoder->name) { ret = -ENOMEM; goto out_put; @@ -1141,6 +1170,18 @@ void drm_encoder_cleanup(struct drm_encoder *encoder) } EXPORT_SYMBOL(drm_encoder_cleanup); +static unsigned int drm_num_planes(struct drm_device *dev) +{ + unsigned int num = 0; + struct drm_plane *tmp; + + drm_for_each_plane(tmp, dev) { + num++; + } + + return num; +} + /** * drm_universal_plane_init - Initialize a new universal plane object * @dev: DRM device @@ -1150,6 +1191,7 @@ EXPORT_SYMBOL(drm_encoder_cleanup); * @formats: array of supported formats (%DRM_FORMAT_*) * @format_count: number of elements in @formats * @type: type of plane (overlay, primary, cursor) + * @name: printf style format string for the plane name, or NULL for default name * * Initializes a plane object of type @type. * @@ -1160,7 +1202,8 @@ int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, unsigned long possible_crtcs, const struct drm_plane_funcs *funcs, const uint32_t *formats, unsigned int format_count, - enum drm_plane_type type) + enum drm_plane_type type, + const char *name, ...) { struct drm_mode_config *config = &dev->mode_config; int ret; @@ -1182,6 +1225,22 @@ int drm_universal_plane_init(struct drm_device *dev, struct drm_plane *plane, return -ENOMEM; } + if (name) { + va_list ap; + + va_start(ap, name); + plane->name = kvasprintf(GFP_KERNEL, name, ap); + va_end(ap); + } else { + plane->name = kasprintf(GFP_KERNEL, "plane-%d", + drm_num_planes(dev)); + } + if (!plane->name) { + kfree(plane->format_types); + drm_mode_object_put(dev, &plane->base); + return -ENOMEM; + } + memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); plane->format_count = format_count; plane->possible_crtcs = possible_crtcs; @@ -1240,7 +1299,7 @@ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, type = is_primary ? DRM_PLANE_TYPE_PRIMARY : DRM_PLANE_TYPE_OVERLAY; return drm_universal_plane_init(dev, plane, possible_crtcs, funcs, - formats, format_count, type); + formats, format_count, type, NULL); } EXPORT_SYMBOL(drm_plane_init); @@ -1272,6 +1331,8 @@ void drm_plane_cleanup(struct drm_plane *plane) if (plane->state && plane->funcs->atomic_destroy_state) plane->funcs->atomic_destroy_state(plane, plane->state); + kfree(plane->name); + memset(plane, 0, sizeof(*plane)); } EXPORT_SYMBOL(drm_plane_cleanup); @@ -1801,7 +1862,8 @@ int drm_mode_getresources(struct drm_device *dev, void *data, copied = 0; crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; drm_for_each_crtc(crtc, dev) { - DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); + DRM_DEBUG_KMS("[CRTC:%d:%s]\n", + crtc->base.id, crtc->name); if (put_user(crtc->base.id, crtc_id + copied)) { ret = -EFAULT; goto out; @@ -2646,7 +2708,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data, ret = -ENOENT; goto out; } - DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); + DRM_DEBUG_KMS("[CRTC:%d:%s]\n", crtc->base.id, crtc->name); if (crtc_req->mode_valid) { /* If we have a mode we need a framebuffer. */ @@ -3235,7 +3297,7 @@ static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) static struct drm_framebuffer * internal_framebuffer_create(struct drm_device *dev, - struct drm_mode_fb_cmd2 *r, + const struct drm_mode_fb_cmd2 *r, struct drm_file *file_priv) { struct drm_mode_config *config = &dev->mode_config; @@ -4785,9 +4847,7 @@ static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, /* Do DPMS ourselves */ if (property == connector->dev->mode_config.dpms_property) { - ret = 0; - if (connector->funcs->dpms) - ret = (*connector->funcs->dpms)(connector, (int)value); + ret = (*connector->funcs->dpms)(connector, (int)value); } else if (connector->funcs->set_property) ret = connector->funcs->set_property(connector, property, value); @@ -4983,6 +5043,20 @@ int drm_mode_connector_attach_encoder(struct drm_connector *connector, { int i; + /* + * In the past, drivers have attempted to model the static association + * of connector to encoder in simple connector/encoder devices using a + * direct assignment of connector->encoder = encoder. This connection + * is a logical one and the responsibility of the core, so drivers are + * expected not to mess with this. + * + * Note that the error return should've been enough here, but a large + * majority of drivers ignores the return value, so add in a big WARN + * to get people's attention. + */ + if (WARN_ON(connector->encoder)) + return -EINVAL; + for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { if (connector->encoder_ids[i] == 0) { connector->encoder_ids[i] = encoder->base.id; @@ -5704,6 +5778,7 @@ void drm_mode_config_init(struct drm_device *dev) INIT_LIST_HEAD(&dev->mode_config.plane_list); idr_init(&dev->mode_config.crtc_idr); idr_init(&dev->mode_config.tile_idr); + ida_init(&dev->mode_config.connector_ida); drm_modeset_lock_all(dev); drm_mode_create_standard_properties(dev); @@ -5784,6 +5859,7 @@ void drm_mode_config_cleanup(struct drm_device *dev) crtc->funcs->destroy(crtc); } + ida_destroy(&dev->mode_config.connector_ida); idr_destroy(&dev->mode_config.tile_idr); idr_destroy(&dev->mode_config.crtc_idr); drm_modeset_lock_fini(&dev->mode_config.connection_mutex); |