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| author | Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com> | 2023-07-07 21:13:55 -0400 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2023-07-10 17:30:51 +0200 |
| commit | 35d67ee3e9c9bcaaab9f217cb3cc6dacf21f2b96 (patch) | |
| tree | 9cf1fbcd1eac0558bb0d0325e295beeed9c23ef5 | |
| parent | 45a4ff624f155314b6188d7cb53e80f3861beb0b (diff) | |
| download | lwn-35d67ee3e9c9bcaaab9f217cb3cc6dacf21f2b96.tar.gz lwn-35d67ee3e9c9bcaaab9f217cb3cc6dacf21f2b96.zip | |
drm/ttm: Use init_on_free to delay release TTM BOs
Delay release TTM BOs when the kernel default setting is init_on_free.
This offloads the overhead of clearing the system memory to the work
item and potentially a different CPU. This could be very beneficial when
the application does a lot of malloc/free style allocations of system
memory.
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>.
Link: https://patchwork.freedesktop.org/patch/msgid/20230708011355.853-1-rajneesh.bhardwaj@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
| -rw-r--r-- | 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 615d30c4262d..758f980e3e16 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -345,6 +345,7 @@ static void ttm_bo_release(struct kref *kref) if (!dma_resv_test_signaled(bo->base.resv, DMA_RESV_USAGE_BOOKKEEP) || + (want_init_on_free() && (bo->ttm != NULL)) || !dma_resv_trylock(bo->base.resv)) { /* The BO is not idle, resurrect it for delayed destroy */ ttm_bo_flush_all_fences(bo); |