drm/msm: Allow exported dma-bufs to be mapped

[linux-2.6-microblaze.git] / drivers / gpu / drm / msm / msm_gem_prime.c

diff --git a/drivers/gpu/drm/msm/msm_gem_prime.c b/drivers/gpu/drm/msm/msm_gem_prime.c
index ad772fe..dd7a7ab 100644 (file)
--- a/drivers/gpu/drm/msm/msm_gem_prime.c
+++ b/drivers/gpu/drm/msm/msm_gem_prime.c
@@ -37,6 +37,19 @@ void msm_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr)
        /* TODO msm_gem_vunmap() */
 }
 
+int msm_gem_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
+{
+       int ret;
+
+       mutex_lock(&obj->dev->struct_mutex);
+       ret = drm_gem_mmap_obj(obj, obj->size, vma);
+       mutex_unlock(&obj->dev->struct_mutex);
+       if (ret < 0)
+               return ret;
+
+       return msm_gem_mmap_obj(vma->vm_private_data, vma);
+}
+
 struct drm_gem_object *msm_gem_prime_import_sg_table(struct drm_device *dev,
                struct dma_buf_attachment *attach, struct sg_table *sg)
 {