[PATCH 1/2] drm/ttm: ensure ttm_mem_io_free is called on bo destruction

From: Ben Skeggs bskeggs@redhat.com

Nouveau will start to use ttm_mem_io_reserve to allocate BAR VM space for VRAM mappings, and without this call GPU address space gets leaked.

Signed-off-by: Ben Skeggs bskeggs@redhat.com --- drivers/gpu/drm/ttm/ttm_bo.c | 1 + 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index dfa163b..c373cf9 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -472,6 +472,7 @@ static void ttm_bo_cleanup_memtype_use(struct ttm_buffer_object *bo) wake_up_all(&bo->event_queue); spin_unlock(&glob->lru_lock);

+ ttm_mem_io_free(bo->bdev, &tmp_mem); ttm_bo_mem_put(bo, &tmp_mem); }