CMA buffer are pinned into system memory as soon as they are allocated
and will only disappear when they are freed.
Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_gem_cma_helper.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c
index 42abee9a0f4f..f0c4e7e6cc33 100644
--- a/drivers/gpu/drm/drm_gem_cma_helper.c
+++ b/drivers/gpu/drm/drm_gem_cma_helper.c
@@ -162,6 +162,8 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm,
goto error;
}
+ drm_gem_add_resident(&cma_obj->base);
+
return cma_obj;
error:
@@ -230,6 +232,8 @@ void drm_gem_cma_free(struct drm_gem_cma_object *cma_obj)
struct drm_gem_object *gem_obj = &cma_obj->base;
struct iosys_map map = IOSYS_MAP_INIT_VADDR(cma_obj->vaddr);
+ drm_gem_dec_resident(gem_obj);
+
if (gem_obj->import_attach) {
if (cma_obj->vaddr)
dma_buf_vunmap(gem_obj->import_attach->dmabuf, &map);
--
2.30.2
