diff options
| author | Christian König <christian.koenig@amd.com> | 2018-02-20 15:35:21 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-03-14 14:38:27 -0500 |
| commit | 5d95109815493e273a2ef9010df0939aa3cfe10f (patch) | |
| tree | 69dbd8e553135d0d6b6c7868d16d42238d65bbe4 /drivers/gpu/drm/ttm/ttm_bo.c | |
| parent | 48527e5296edc7b952fb2c1c40fd8c388cc935ed (diff) | |
drm/ttm: add ttm_bo_pipeline_gutting
Allows us to gut a BO of it's backing store when the driver says that it
isn't needed any more.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index ad142a92eb80..98e06f8bf23b 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -622,14 +622,23 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo, reservation_object_assert_held(bo->resv); + placement.num_placement = 0; + placement.num_busy_placement = 0; + bdev->driver->evict_flags(bo, &placement); + + if (!placement.num_placement && !placement.num_busy_placement) { + ret = ttm_bo_pipeline_gutting(bo); + if (ret) + return ret; + + return ttm_tt_create(bo, false); + } + evict_mem = bo->mem; evict_mem.mm_node = NULL; evict_mem.bus.io_reserved_vm = false; evict_mem.bus.io_reserved_count = 0; - placement.num_placement = 0; - placement.num_busy_placement = 0; - bdev->driver->evict_flags(bo, &placement); ret = ttm_bo_mem_space(bo, &placement, &evict_mem, ctx); if (ret) { if (ret != -ERESTARTSYS) { |