diff options
| author | Christian König <christian.koenig@amd.com> | 2019-05-10 15:15:08 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-05-31 18:39:34 +0300 |
| commit | 6e58ab7ac7fac61acd7705a8abf1632462c1512a (patch) | |
| tree | d87b12440672118aaf6d87dbe60de5d602e2d8da /drivers/gpu/drm/ttm/ttm_bo.c | |
| parent | 526c654a8a0641d4289bf65effde4d6095bd8384 (diff) | |
| download | linux-6e58ab7ac7fac61acd7705a8abf1632462c1512a.tar.xz | |
drm/ttm: Make LRU removal optional v2
We are already doing this for DMA-buf imports and also for
amdgpu VM BOs for quite a while now.
If this doesn't run into any problems we are probably going
to stop removing BOs from the LRU altogether.
v2: drop BUG_ON from ttm_bo_add_to_lru
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Tested-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@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 | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 2845fceb2fbd..06bbcd2679b2 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -173,19 +173,20 @@ void ttm_bo_add_to_lru(struct ttm_buffer_object *bo) reservation_object_assert_held(bo->resv); - if (!(bo->mem.placement & TTM_PL_FLAG_NO_EVICT)) { - BUG_ON(!list_empty(&bo->lru)); + if (!list_empty(&bo->lru)) + return; - man = &bdev->man[bo->mem.mem_type]; - list_add_tail(&bo->lru, &man->lru[bo->priority]); - kref_get(&bo->list_kref); + if (bo->mem.placement & TTM_PL_FLAG_NO_EVICT) + return; - if (bo->ttm && !(bo->ttm->page_flags & - (TTM_PAGE_FLAG_SG | TTM_PAGE_FLAG_SWAPPED))) { - list_add_tail(&bo->swap, - &bdev->glob->swap_lru[bo->priority]); - kref_get(&bo->list_kref); - } + man = &bdev->man[bo->mem.mem_type]; + list_add_tail(&bo->lru, &man->lru[bo->priority]); + kref_get(&bo->list_kref); + + if (bo->ttm && !(bo->ttm->page_flags & + (TTM_PAGE_FLAG_SG | TTM_PAGE_FLAG_SWAPPED))) { + list_add_tail(&bo->swap, &bdev->glob->swap_lru[bo->priority]); + kref_get(&bo->list_kref); } } EXPORT_SYMBOL(ttm_bo_add_to_lru); |