From: Christopher James Halse Rogers christopher.halse.rogers@canonical.com
Attempting to migrate the bo will break the sharing of the buffer.
v2: Error-check the nouveau_bo_pin call; it can fail.
Signed-off-by: Christopher James Halse Rogers christopher.halse.rogers@canonical.com --- drivers/gpu/drm/nouveau/nouveau_prime.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/nouveau/nouveau_prime.c b/drivers/gpu/drm/nouveau/nouveau_prime.c index 1fefc93af1d7..ad5eaf70c8e2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_prime.c +++ b/drivers/gpu/drm/nouveau/nouveau_prime.c @@ -76,6 +76,12 @@ struct drm_gem_object *nouveau_gem_prime_import_sg_table(struct drm_device *dev, return ERR_PTR(ret);
nvbo->valid_domains = NOUVEAU_GEM_DOMAIN_GART; + /* pin imported buffer to GTT */ + ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_TT, false); + if (ret) { + nouveau_bo_ref(NULL, &nvbo); + return ERR_PTR(ret); + }
/* Initialize the embedded gem-object. We return a single gem-reference * to the caller, instead of a normal nouveau_bo ttm reference. */