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path: root/drivers/gpu/drm/etnaviv/etnaviv_gem.c
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Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_gem.c')
-rw-r--r--drivers/gpu/drm/etnaviv/etnaviv_gem.c54
1 files changed, 31 insertions, 23 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index 4b519e4309b2..937a77520f58 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -260,8 +260,32 @@ etnaviv_gem_get_vram_mapping(struct etnaviv_gem_object *obj,
return NULL;
}
-int etnaviv_gem_get_iova(struct etnaviv_gpu *gpu,
- struct drm_gem_object *obj, u32 *iova)
+void etnaviv_gem_mapping_reference(struct etnaviv_vram_mapping *mapping)
+{
+ struct etnaviv_gem_object *etnaviv_obj = mapping->object;
+
+ drm_gem_object_reference(&etnaviv_obj->base);
+
+ mutex_lock(&etnaviv_obj->lock);
+ WARN_ON(mapping->use == 0);
+ mapping->use += 1;
+ mutex_unlock(&etnaviv_obj->lock);
+}
+
+void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping)
+{
+ struct etnaviv_gem_object *etnaviv_obj = mapping->object;
+
+ mutex_lock(&etnaviv_obj->lock);
+ WARN_ON(mapping->use == 0);
+ mapping->use -= 1;
+ mutex_unlock(&etnaviv_obj->lock);
+
+ drm_gem_object_unreference_unlocked(&etnaviv_obj->base);
+}
+
+struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
+ struct drm_gem_object *obj, struct etnaviv_gpu *gpu)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct etnaviv_vram_mapping *mapping;
@@ -329,28 +353,12 @@ int etnaviv_gem_get_iova(struct etnaviv_gpu *gpu,
out:
mutex_unlock(&etnaviv_obj->lock);
- if (!ret) {
- /* Take a reference on the object */
- drm_gem_object_reference(obj);
- *iova = mapping->iova;
- }
-
- return ret;
-}
-
-void etnaviv_gem_put_iova(struct etnaviv_gpu *gpu, struct drm_gem_object *obj)
-{
- struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
- struct etnaviv_vram_mapping *mapping;
-
- mutex_lock(&etnaviv_obj->lock);
- mapping = etnaviv_gem_get_vram_mapping(etnaviv_obj, gpu->mmu);
-
- WARN_ON(mapping->use == 0);
- mapping->use -= 1;
- mutex_unlock(&etnaviv_obj->lock);
+ if (ret)
+ return ERR_PTR(ret);
- drm_gem_object_unreference_unlocked(obj);
+ /* Take a reference on the object */
+ drm_gem_object_reference(obj);
+ return mapping;
}
void *etnaviv_gem_vmap(struct drm_gem_object *obj)