diff options
Diffstat (limited to 'drivers/gpu/drm/vkms/vkms_config.c')
| -rw-r--r-- | drivers/gpu/drm/vkms/vkms_config.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vkms/vkms_config.c b/drivers/gpu/drm/vkms/vkms_config.c index fbbdee6068ce..a1df5659b0fb 100644 --- a/drivers/gpu/drm/vkms/vkms_config.c +++ b/drivers/gpu/drm/vkms/vkms_config.c @@ -95,6 +95,9 @@ struct vkms_config *vkms_config_default_create(bool enable_cursor, if (IS_ERR(connector_cfg)) goto err_alloc; + if (vkms_config_connector_attach_encoder(connector_cfg, encoder_cfg)) + goto err_alloc; + return config; err_alloc: @@ -279,6 +282,22 @@ static bool valid_connector_number(const struct vkms_config *config) return true; } +static bool valid_connector_possible_encoders(const struct vkms_config *config) +{ + struct drm_device *dev = config->dev ? &config->dev->drm : NULL; + struct vkms_config_connector *connector_cfg; + + vkms_config_for_each_connector(config, connector_cfg) { + if (xa_empty(&connector_cfg->possible_encoders)) { + drm_info(dev, + "All connectors must have at least one possible encoder\n"); + return false; + } + } + + return true; +} + bool vkms_config_is_valid(const struct vkms_config *config) { struct vkms_config_crtc *crtc_cfg; @@ -306,6 +325,9 @@ bool vkms_config_is_valid(const struct vkms_config *config) if (!valid_encoder_possible_crtcs(config)) return false; + if (!valid_connector_possible_encoders(config)) + return false; + return true; } EXPORT_SYMBOL_IF_KUNIT(vkms_config_is_valid); @@ -513,6 +535,11 @@ EXPORT_SYMBOL_IF_KUNIT(vkms_config_create_encoder); void vkms_config_destroy_encoder(struct vkms_config *config, struct vkms_config_encoder *encoder_cfg) { + struct vkms_config_connector *connector_cfg; + + vkms_config_for_each_connector(config, connector_cfg) + vkms_config_connector_detach_encoder(connector_cfg, encoder_cfg); + xa_destroy(&encoder_cfg->possible_crtcs); list_del(&encoder_cfg->link); kfree(encoder_cfg); @@ -561,6 +588,7 @@ struct vkms_config_connector *vkms_config_create_connector(struct vkms_config *c return ERR_PTR(-ENOMEM); connector_cfg->config = config; + xa_init_flags(&connector_cfg->possible_encoders, XA_FLAGS_ALLOC); list_add_tail(&connector_cfg->link, &config->connectors); @@ -570,7 +598,43 @@ EXPORT_SYMBOL_IF_KUNIT(vkms_config_create_connector); void vkms_config_destroy_connector(struct vkms_config_connector *connector_cfg) { + xa_destroy(&connector_cfg->possible_encoders); list_del(&connector_cfg->link); kfree(connector_cfg); } EXPORT_SYMBOL_IF_KUNIT(vkms_config_destroy_connector); + +int __must_check vkms_config_connector_attach_encoder(struct vkms_config_connector *connector_cfg, + struct vkms_config_encoder *encoder_cfg) +{ + struct vkms_config_encoder *possible_encoder; + unsigned long idx = 0; + u32 encoder_idx = 0; + + if (connector_cfg->config != encoder_cfg->config) + return -EINVAL; + + vkms_config_connector_for_each_possible_encoder(connector_cfg, idx, + possible_encoder) { + if (possible_encoder == encoder_cfg) + return -EEXIST; + } + + return xa_alloc(&connector_cfg->possible_encoders, &encoder_idx, + encoder_cfg, xa_limit_32b, GFP_KERNEL); +} +EXPORT_SYMBOL_IF_KUNIT(vkms_config_connector_attach_encoder); + +void vkms_config_connector_detach_encoder(struct vkms_config_connector *connector_cfg, + struct vkms_config_encoder *encoder_cfg) +{ + struct vkms_config_encoder *possible_encoder; + unsigned long idx = 0; + + vkms_config_connector_for_each_possible_encoder(connector_cfg, idx, + possible_encoder) { + if (possible_encoder == encoder_cfg) + xa_erase(&connector_cfg->possible_encoders, idx); + } +} +EXPORT_SYMBOL_IF_KUNIT(vkms_config_connector_detach_encoder); |