Am 18.02.23 um 22:15 schrieb Rob Clark:
From: Rob Clark robdclark@chromium.org
Add a way to set a deadline on remaining resv fences according to the requested usage.
Signed-off-by: Rob Clark robdclark@chromium.org
drivers/dma-buf/dma-resv.c | 19 +++++++++++++++++++ include/linux/dma-resv.h | 2 ++ 2 files changed, 21 insertions(+)
diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 1c76aed8e262..0c86f6d577ab 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -684,6 +684,25 @@ 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)
Please add an additional description line, something like "Can be called without holding the dma_resv lock and sets @deadline on all fences filtered by @usage.".
With that done the patch is Reviewed-by: Christian König christian.koenig@amd.com
Regards, Christian.
- */
+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
diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h index 0637659a702c..8d0e34dad446 100644 --- a/include/linux/dma-resv.h +++ b/include/linux/dma-resv.h @@ -479,6 +479,8 @@ int dma_resv_get_singleton(struct dma_resv *obj, enum dma_resv_usage usage, int dma_resv_copy_fences(struct dma_resv *dst, struct dma_resv *src); long dma_resv_wait_timeout(struct dma_resv *obj, enum dma_resv_usage usage, bool intr, unsigned long timeout); +void dma_resv_set_deadline(struct dma_resv *obj, enum dma_resv_usage usage,
ktime_t deadline);