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authorOded Gabbay <[email protected]>2021-07-01 10:36:16 +0300
committerOded Gabbay <[email protected]>2021-08-29 09:47:45 +0300
commit429d77ca2760e0f42523fda72db59861c1b3aefc (patch)
tree5b9f195445c56dc1e4a02b97d113e529bf120c88
parentb07e6c7ef5c7a094c20fa9962f9af2b42546ee94 (diff)
habanalabs: handle case of interruptable wait
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 <[email protected]>
-rw-r--r--drivers/misc/habanalabs/common/command_submission.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/common/command_submission.c b/drivers/misc/habanalabs/common/command_submission.c
index 12f20446e99a..997a37e78241 100644
--- a/drivers/misc/habanalabs/common/command_submission.c
+++ b/drivers/misc/habanalabs/common/command_submission.c
@@ -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;
}