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| author |   Rob Clark <robdclark@chromium.org> | 2023-02-18 12:35:04 -0800 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2023-03-28 13:39:02 -0700 |
| commit | d7d5a21dd6b4706c04fbba5d25db8da5f25aab68 (patch) | |
| tree | 2bc415b6a11b1b9a440a07b15439c96af75f1543 /drivers/dma-buf | |
| parent | dma-buf/fence-chain: Add fence deadline support (diff) | |
| download | wireguard-linux-d7d5a21dd6b4706c04fbba5d25db8da5f25aab68.tar.xz wireguard-linux-d7d5a21dd6b4706c04fbba5d25db8da5f25aab68.zip | |
dma-buf/dma-resv: Add a way to set fence deadline
Add a way to set a deadline on remaining resv fences according to the
requested usage.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Diffstat (limited to 'drivers/dma-buf')
| -rw-r--r-- | drivers/dma-buf/dma-resv.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 1c76aed8e262..2a594b754af1 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -684,6 +684,28 @@ long dma_resv_wait_timeout(struct dma_resv *obj, enum dma_resv_usage usage, } EXPORT_SYMBOL_GPL(dma_resv_wait_timeout); +/** + * dma_resv_set_deadline - Set a deadline on reservation's objects fences + * @obj: the reservation object + * @usage: controls which fences to include, see enum dma_resv_usage. + * @deadline: the requested deadline (MONOTONIC) + * + * May be called without holding the dma_resv lock. Sets @deadline on + * all fences filtered by @usage. + */ +void dma_resv_set_deadline(struct dma_resv *obj, enum dma_resv_usage usage, + ktime_t deadline) +{ + struct dma_resv_iter cursor; + struct dma_fence *fence; + + dma_resv_iter_begin(&cursor, obj, usage); + dma_resv_for_each_fence_unlocked(&cursor, fence) { + dma_fence_set_deadline(fence, deadline); + } + dma_resv_iter_end(&cursor); +} +EXPORT_SYMBOL_GPL(dma_resv_set_deadline); /** * dma_resv_test_signaled - Test if a reservation object's fences have been |