Adrian Ng Ho YinandDinh Nguyen 9e1dc434ca firmware: stratix10-svc: handle NO_RESPONSE in async poll ...

Define INTEL_SIP_SMC_STATUS_NO_RESPONSE (0x3) and handle it in
stratix10_svc_async_poll() the same way as INTEL_SIP_SMC_STATUS_BUSY,
returning -EAGAIN so callers can retry instead of treating the poll as
a hard failure.

When the Secure Device Manager has not yet produced a response for an
asynchronous transaction, ATF is expected to return
INTEL_SIP_SMC_STATUS_NO_RESPONSE. Without this handling, the service
layer maps the status to -EINVAL and async clients cannot distinguish
"not ready yet" from a real error.

Fixes: bcb9f4f070 ("firmware: stratix10-svc: Add support for async communication")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

2026-07-14 16:33:21 -05:00

..

stratix10-smc.h

firmware: stratix10-svc: handle NO_RESPONSE in async poll

2026-07-14 16:33:21 -05:00

stratix10-svc-client.h

firmware: stratix10-svc: Add support to query Arm Trusted Firmware (ATF) version

2026-06-08 22:37:35 +09:00