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authorKoby Elbaz2023-03-26 18:22:57 +0300
committerOded Gabbay2023-04-08 10:39:34 +0300
commitc19350efa9dae7f4474d7847ab7d6e667082fd18 (patch)
tree7ad026151127ba4755423b33cb764192d5fc2bc0 /drivers/accel
parent802f25b6c2c0377c681dd1e4f799a648c3df50dd (diff)
accel/habanalabs: don't wait for STS_OK after sending COMMS WFE
Sending COMMS_GOTO_WFE instructs the FW's CPU to halt (WFE state). Once sent, FW's CPU isn't expected to continue communicating with LKD. Therefore, the stage of waiting for COMMS_STS_OK should be skipped or else waiting for COMMS_STS_OK will simply timeout, which will trigger unexpected behavior. Signed-off-by: Koby Elbaz <kelbaz@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/accel')
-rw-r--r--drivers/accel/habanalabs/common/firmware_if.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/accel/habanalabs/common/firmware_if.c b/drivers/accel/habanalabs/common/firmware_if.c
index 781256dd49ad..59f61ec66445 100644
--- a/drivers/accel/habanalabs/common/firmware_if.c
+++ b/drivers/accel/habanalabs/common/firmware_if.c
@@ -1278,7 +1278,7 @@ void hl_fw_ask_halt_machine_without_linux(struct hl_device *hdev)
/* Stop device CPU to make sure nothing bad happens */
if (hdev->asic_prop.dynamic_fw_load) {
rc = hl_fw_dynamic_send_protocol_cmd(hdev, &hdev->fw_loader,
- COMMS_GOTO_WFE, 0, true,
+ COMMS_GOTO_WFE, 0, false,
hdev->fw_loader.cpu_timeout);
if (rc)
dev_err(hdev->dev, "Failed sending COMMS_GOTO_WFE\n");