diff options
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_gem.c')
-rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gem.c | 54 |
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 97d4457..281c6ec 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) |