drm: Improve on minor type helpers v3

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / gpu / drm / drm_crtc.c

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 266a01d..57fd888 100644 (file)
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -675,6 +675,29 @@ void drm_crtc_cleanup(struct drm_crtc *crtc)
 EXPORT_SYMBOL(drm_crtc_cleanup);
 
 /**
+ * drm_crtc_index - find the index of a registered CRTC
+ * @crtc: CRTC to find index for
+ *
+ * Given a registered CRTC, return the index of that CRTC within a DRM
+ * device's list of CRTCs.
+ */
+unsigned int drm_crtc_index(struct drm_crtc *crtc)
+{
+       unsigned int index = 0;
+       struct drm_crtc *tmp;
+
+       list_for_each_entry(tmp, &crtc->dev->mode_config.crtc_list, head) {
+               if (tmp == crtc)
+                       return index;
+
+               index++;
+       }
+
+       BUG();
+}
+EXPORT_SYMBOL(drm_crtc_index);
+
+/**
  * drm_mode_probed_add - add a mode to a connector's probed mode list
  * @connector: connector the new mode
  * @mode: mode data
@@ -1406,9 +1429,9 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
        mutex_unlock(&file_priv->fbs_lock);
 
        drm_modeset_lock_all(dev);
-       mode_group = &file_priv->master->minor->mode_group;
-       if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+       if (!drm_is_primary_client(file_priv)) {
 
+               mode_group = NULL;
                list_for_each(lh, &dev->mode_config.crtc_list)
                        crtc_count++;
 
@@ -1419,6 +1442,7 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
                        encoder_count++;
        } else {
 
+               mode_group = &file_priv->master->minor->mode_group;
                crtc_count = mode_group->num_crtcs;
                connector_count = mode_group->num_connectors;
                encoder_count = mode_group->num_encoders;
@@ -1433,7 +1457,7 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
        if (card_res->count_crtcs >= crtc_count) {
                copied = 0;
                crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr;
-               if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+               if (!mode_group) {
                        list_for_each_entry(crtc, &dev->mode_config.crtc_list,
                                            head) {
                                DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
@@ -1460,7 +1484,7 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
        if (card_res->count_encoders >= encoder_count) {
                copied = 0;
                encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr;
-               if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+               if (!mode_group) {
                        list_for_each_entry(encoder,
                                            &dev->mode_config.encoder_list,
                                            head) {
@@ -1491,7 +1515,7 @@ int drm_mode_getresources(struct drm_device *dev, void *data,
        if (card_res->count_connectors >= connector_count) {
                copied = 0;
                connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr;
-               if (file_priv->master->minor->type == DRM_MINOR_CONTROL) {
+               if (!mode_group) {
                        list_for_each_entry(connector,
                                            &dev->mode_config.connector_list,
                                            head) {
@@ -2692,7 +2716,8 @@ int drm_mode_getfb(struct drm_device *dev,
        r->bpp = fb->bits_per_pixel;
        r->pitch = fb->pitches[0];
        if (fb->funcs->create_handle) {
-               if (file_priv->is_master || capable(CAP_SYS_ADMIN)) {
+               if (file_priv->is_master || capable(CAP_SYS_ADMIN) ||
+                   drm_is_control_client(file_priv)) {
                        ret = fb->funcs->create_handle(fb, file_priv,
                                                       &r->handle);
                } else {