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| author | Christian König <christian.koenig@amd.com> | 2019-07-31 10:41:50 +0300 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2019-08-05 10:28:43 +0300 |
| commit | 0dbd555a011c2d096a7b7e40c83c5776a7df367c (patch) | |
| tree | 4399a2204760664daad1c91896aa3f8217744d43 /drivers/gpu/drm/ttm/ttm_bo.c | |
| parent | 05103ea9a3159b9bb7004e9c0693948d4d6124f9 (diff) | |
| download | linux-0dbd555a011c2d096a7b7e40c83c5776a7df367c.tar.xz | |
dma-buf: add more reservation object locking wrappers
Complete the abstraction of the ww_mutex inside the reservation object.
This allows us to add more handling and debugging to the reservation
object in the future.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/320761/
Diffstat (limited to 'drivers/gpu/drm/ttm/ttm_bo.c')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 58c403eda04e..40d3e547c78e 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -850,8 +850,8 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev, if (!ttm_bo_evict_swapout_allowable(bo, ctx, &locked, &busy)) { - if (busy && !busy_bo && - bo->resv->lock.ctx != ticket) + if (busy && !busy_bo && ticket != + reservation_object_locking_ctx(bo->resv)) busy_bo = bo; continue; } @@ -957,8 +957,10 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo, { struct ttm_bo_device *bdev = bo->bdev; struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; + struct ww_acquire_ctx *ticket; int ret; + ticket = reservation_object_locking_ctx(bo->resv); do { ret = (*man->func->get_node)(man, bo, place, mem); if (unlikely(ret != 0)) @@ -966,7 +968,7 @@ static int ttm_bo_mem_force_space(struct ttm_buffer_object *bo, if (mem->mm_node) break; ret = ttm_mem_evict_first(bdev, mem->mem_type, place, ctx, - bo->resv->lock.ctx); + ticket); if (unlikely(ret != 0)) return ret; } while (1); @@ -1963,7 +1965,7 @@ int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo) ret = mutex_lock_interruptible(&bo->wu_mutex); if (unlikely(ret != 0)) return -ERESTARTSYS; - if (!ww_mutex_is_locked(&bo->resv->lock)) + if (!reservation_object_is_locked(bo->resv)) goto out_unlock; ret = reservation_object_lock_interruptible(bo->resv, NULL); if (ret == -EINTR) |