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| author | Oded Gabbay <oded.gabbay@gmail.com> | 2020-09-07 18:08:51 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-09-22 18:49:53 +0300 |
| commit | 681a22f55f1506023da06ebf660a4a252b35bc93 (patch) | |
| tree | d53cd10e5c272e7dcae78be129fa24e8abd34061 /drivers/misc/habanalabs/common | |
| parent | 230b9b7d45b6d466afd1b6e82dddc252756c5c9c (diff) | |
| download | linux-681a22f55f1506023da06ebf660a4a252b35bc93.tar.xz | |
habanalabs: allow to wait on CS without sleep
The user sometimes wants to check if a CS has completed to clean resources.
In that case, the user doesn't want to sleep but just to check if the CS
has finished and continue with his code.
Add a new definition to the API of the wait on CS. The new definition says
that if the timeout is 0, the driver won't sleep at all but return
immediately after checking if the CS has finished.
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs/common')
| -rw-r--r-- | drivers/misc/habanalabs/common/command_submission.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/common/command_submission.c b/drivers/misc/habanalabs/common/command_submission.c index 470bffbe9bdc..b2b974ecc431 100644 --- a/drivers/misc/habanalabs/common/command_submission.c +++ b/drivers/misc/habanalabs/common/command_submission.c @@ -1180,8 +1180,11 @@ static long _hl_cs_wait_ioctl(struct hl_device *hdev, "Can't wait on CS %llu because current CS is at seq %llu\n", seq, ctx->cs_sequence); } else if (fence) { - rc = wait_for_completion_interruptible_timeout( - &fence->completion, timeout); + if (!timeout_us) + rc = completion_done(&fence->completion); + else + rc = wait_for_completion_interruptible_timeout( + &fence->completion, timeout); if (fence->error == -ETIMEDOUT) rc = -ETIMEDOUT; |