drm/ttm: add ioctl to get back memory managed area sized

[profile/ivi/libdrm.git] / linux-core / drm_bo.c

diff --git a/linux-core/drm_bo.c b/linux-core/drm_bo.c
index 95802fe..b67946e 100644 (file)
--- a/linux-core/drm_bo.c
+++ b/linux-core/drm_bo.c
@@ -2283,6 +2283,7 @@ int drm_bo_init_mm(struct drm_device *dev,
        }
        man->has_type = 1;
        man->use_type = 1;
+       man->size = p_size;
 
        INIT_LIST_HEAD(&man->lru);
        INIT_LIST_HEAD(&man->pinned);
@@ -2553,6 +2554,42 @@ int drm_mm_unlock_ioctl(struct drm_device *dev,
        return 0;
 }
 
+int drm_mm_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
+{
+       struct drm_mm_info_arg *arg = data;
+       struct drm_buffer_manager *bm = &dev->bm;
+       struct drm_bo_driver *driver = dev->driver->bo_driver;
+       struct drm_mem_type_manager *man;
+       int ret = 0;
+       int mem_type = arg->mem_type;
+
+       if (!driver) {
+               DRM_ERROR("Buffer objects are not supported by this driver\n");
+               return -EINVAL;
+       }
+
+       if (mem_type >= DRM_BO_MEM_TYPES) {
+               DRM_ERROR("Illegal memory type %d\n", arg->mem_type);
+               return -EINVAL;
+       }
+
+       mutex_lock(&dev->struct_mutex);
+       if (!bm->initialized) {
+               DRM_ERROR("DRM memory manager was not initialized\n");
+               ret = -EINVAL;
+               goto out;
+       }
+
+
+       man = &bm->man[arg->mem_type];
+
+       arg->p_size = man->size;
+
+out:
+       mutex_unlock(&dev->struct_mutex);
+     
+       return ret;
+}
 /*
  * buffer object vm functions.
  */