diff options
| author | xinhui pan <xinhui.pan@amd.com> | 2020-01-15 09:07:45 +0300 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2020-01-22 14:51:56 +0300 |
| commit | 1bbcf69e42fe7fd49b6f4339c970729d0e343753 (patch) | |
| tree | 21a8018efe487d684130b4a0d4fce5e3724a6d1b /drivers/gpu/drm/ttm | |
| parent | b37ea8bff730aca844fb3bd202af2108476245fd (diff) | |
| download | linux-1bbcf69e42fe7fd49b6f4339c970729d0e343753.tar.xz | |
drm/ttm: flush the fence on the bo after we individualize the reservation object
As we move the ttm_bo_individualize_resv() upwards, we need flush the
copied fence too. Otherwise the driver keeps waiting for fence.
run&Kill kfdtest, then perf top.
25.53% [ttm] [k] ttm_bo_delayed_delete
24.29% [kernel] [k] dma_resv_test_signaled_rcu
19.72% [kernel] [k] ww_mutex_lock
Fix: 378e2d5b("drm/ttm: fix ttm_bo_cleanup_refs_or_queue once more")
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/series/72339/
Signed-off-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 06f6d650827f..1fbc36f05d89 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -491,8 +491,10 @@ static void ttm_bo_cleanup_refs_or_queue(struct ttm_buffer_object *bo) dma_resv_unlock(bo->base.resv); } - if (bo->base.resv != &bo->base._resv) + if (bo->base.resv != &bo->base._resv) { + ttm_bo_flush_all_fences(bo); dma_resv_unlock(&bo->base._resv); + } error: kref_get(&bo->list_kref); |