diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc_helper.c')
-rw-r--r-- | drivers/gpu/drm/drm_crtc_helper.c | 75 |
1 files changed, 39 insertions, 36 deletions
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c index 393114df88a3..ef534758a02c 100644 --- a/drivers/gpu/drm/drm_crtc_helper.c +++ b/drivers/gpu/drm/drm_crtc_helper.c @@ -121,7 +121,7 @@ bool drm_helper_encoder_in_use(struct drm_encoder *encoder) WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); } - list_for_each_entry(connector, &dev->mode_config.connector_list, head) + drm_for_each_connector(connector, dev) if (connector->encoder == encoder) return true; return false; @@ -151,7 +151,7 @@ bool drm_helper_crtc_in_use(struct drm_crtc *crtc) if (!oops_in_progress) WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) + drm_for_each_encoder(encoder, dev) if (encoder->crtc == crtc && drm_helper_encoder_in_use(encoder)) return true; return false; @@ -180,7 +180,7 @@ static void __drm_helper_disable_unused_functions(struct drm_device *dev) drm_warn_on_modeset_not_all_locked(dev); - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { if (!drm_helper_encoder_in_use(encoder)) { drm_encoder_disable(encoder); /* disconnect encoder from any connector */ @@ -188,7 +188,7 @@ static void __drm_helper_disable_unused_functions(struct drm_device *dev) } } - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + drm_for_each_crtc(crtc, dev) { const struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; crtc->enabled = drm_helper_crtc_in_use(crtc); if (!crtc->enabled) { @@ -230,7 +230,7 @@ drm_crtc_prepare_encoders(struct drm_device *dev) const struct drm_encoder_helper_funcs *encoder_funcs; struct drm_encoder *encoder; - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { encoder_funcs = encoder->helper_private; /* Disable unused encoders */ if (encoder->crtc == NULL) @@ -305,7 +305,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, * adjust it according to limitations or connector properties, and also * a chance to reject the mode entirely. */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { if (encoder->crtc != crtc) continue; @@ -334,7 +334,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, crtc->hwmode = *adjusted_mode; /* Prepare the encoders and CRTCs before setting the mode. */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { if (encoder->crtc != crtc) continue; @@ -359,7 +359,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, if (!ret) goto done; - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { if (encoder->crtc != crtc) continue; @@ -376,7 +376,7 @@ bool drm_crtc_helper_set_mode(struct drm_crtc *crtc, /* Now enable the clocks, plane, pipe, and connectors that we set up. */ crtc_funcs->commit(crtc); - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { if (encoder->crtc != crtc) continue; @@ -418,11 +418,11 @@ drm_crtc_helper_disable(struct drm_crtc *crtc) struct drm_encoder *encoder; /* Decouple all encoders and their attached connectors from this crtc */ - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { if (encoder->crtc != crtc) continue; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + drm_for_each_connector(connector, dev) { if (connector->encoder != encoder) continue; @@ -519,12 +519,12 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) * restored, not the drivers personal bookkeeping. */ count = 0; - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { save_encoders[count++] = *encoder; } count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + drm_for_each_connector(connector, dev) { save_connectors[count++] = *connector; } @@ -562,7 +562,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) /* a) traverse passed in connector list and get encoders for them */ count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + drm_for_each_connector(connector, dev) { const struct drm_connector_helper_funcs *connector_funcs = connector->helper_private; new_encoder = connector->encoder; @@ -602,7 +602,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) } count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + drm_for_each_connector(connector, dev) { if (!connector->encoder) continue; @@ -685,12 +685,12 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set) fail: /* Restore all previous data. */ count = 0; - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { *encoder = save_encoders[count++]; } count = 0; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + drm_for_each_connector(connector, dev) { *connector = save_connectors[count++]; } @@ -712,7 +712,7 @@ static int drm_helper_choose_encoder_dpms(struct drm_encoder *encoder) struct drm_connector *connector; struct drm_device *dev = encoder->dev; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) + drm_for_each_connector(connector, dev) if (connector->encoder == encoder) if (connector->dpms < dpms) dpms = connector->dpms; @@ -746,7 +746,7 @@ static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc) struct drm_connector *connector; struct drm_device *dev = crtc->dev; - list_for_each_entry(connector, &dev->mode_config.connector_list, head) + drm_for_each_connector(connector, dev) if (connector->encoder && connector->encoder->crtc == crtc) if (connector->dpms < dpms) dpms = connector->dpms; @@ -762,15 +762,18 @@ static int drm_helper_choose_crtc_dpms(struct drm_crtc *crtc) * implementing the DPMS connector attribute. It computes the new desired DPMS * state for all encoders and crtcs in the output mesh and calls the ->dpms() * callback provided by the driver appropriately. + * + * Returns: + * Always returns 0. */ -void drm_helper_connector_dpms(struct drm_connector *connector, int mode) +int drm_helper_connector_dpms(struct drm_connector *connector, int mode) { struct drm_encoder *encoder = connector->encoder; struct drm_crtc *crtc = encoder ? encoder->crtc : NULL; int old_dpms, encoder_dpms = DRM_MODE_DPMS_OFF; if (mode == connector->dpms) - return; + return 0; old_dpms = connector->dpms; connector->dpms = mode; @@ -802,7 +805,7 @@ void drm_helper_connector_dpms(struct drm_connector *connector, int mode) } } - return; + return 0; } EXPORT_SYMBOL(drm_helper_connector_dpms); @@ -862,7 +865,7 @@ void drm_helper_resume_force_mode(struct drm_device *dev) bool ret; drm_modeset_lock_all(dev); - list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { + drm_for_each_crtc(crtc, dev) { if (!crtc->enabled) continue; @@ -876,7 +879,7 @@ void drm_helper_resume_force_mode(struct drm_device *dev) /* Turn off outputs that were already powered off */ if (drm_helper_choose_crtc_dpms(crtc)) { - list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + drm_for_each_encoder(encoder, dev) { if(encoder->crtc != crtc) continue; @@ -928,15 +931,15 @@ int drm_helper_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mod if (crtc->funcs->atomic_duplicate_state) crtc_state = crtc->funcs->atomic_duplicate_state(crtc); else { - crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL); - if (!crtc_state) - return -ENOMEM; - if (crtc->state) - __drm_atomic_helper_crtc_duplicate_state(crtc, crtc_state); - else - crtc_state->crtc = crtc; + if (!crtc->state) + drm_atomic_helper_crtc_reset(crtc); + + crtc_state = drm_atomic_helper_crtc_duplicate_state(crtc); } + if (!crtc_state) + return -ENOMEM; + crtc_state->planes_changed = true; crtc_state->mode_changed = true; ret = drm_atomic_set_mode_for_crtc(crtc_state, mode); @@ -957,11 +960,11 @@ int drm_helper_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mod ret = drm_helper_crtc_mode_set_base(crtc, x, y, old_fb); out: - if (crtc->funcs->atomic_destroy_state) - crtc->funcs->atomic_destroy_state(crtc, crtc_state); - else { - __drm_atomic_helper_crtc_destroy_state(crtc, crtc_state); - kfree(crtc_state); + if (crtc_state) { + if (crtc->funcs->atomic_destroy_state) + crtc->funcs->atomic_destroy_state(crtc, crtc_state); + else + drm_atomic_helper_crtc_destroy_state(crtc, crtc_state); } return ret; |