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habanalabs: handle case of interruptable wait

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Same as we handle it in the regular wait for CS, we need to handle the
case where the waiting for user interrupt was interrupted. In that case,
we need to return correct error code to the user.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
This commit is contained in:
Oded Gabbay 2021-07-01 10:36:16 +03:00
parent b07e6c7ef5
commit 429d77ca27
1 changed files with 9 additions and 2 deletions
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11
drivers/misc/habanalabs/common/command_submission.c
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@ -2102,6 +2102,12 @@ wait_again:
spin_unlock(&interrupt->wait_list_lock);
goto wait_again;
}
} else if (completion_rc == -ERESTARTSYS) {
dev_err_ratelimited(hdev->dev,
"user process got signal while waiting for interrupt ID %d\n",
interrupt->interrupt_id);
*status = HL_WAIT_CS_STATUS_INTERRUPTED;
rc = -EINTR;
} else {
*status = CS_WAIT_STATUS_BUSY;
}
@ -2159,8 +2165,9 @@ static int hl_interrupt_wait_ioctl(struct hl_fpriv *hpriv, void *data)
memset(args, 0, sizeof(*args));
if (rc) {
dev_err_ratelimited(hdev->dev,
"interrupt_wait_ioctl failed (%d)\n", rc);
if (rc != -EINTR)
dev_err_ratelimited(hdev->dev,
"interrupt_wait_ioctl failed (%d)\n", rc);
return rc;
}