diff options
| author | Adrian Ng Ho Yin <adrian.ho.yin.ng@altera.com> | 2026-07-14 13:37:46 +0800 |
|---|---|---|
| committer | Dinh Nguyen <dinguyen@kernel.org> | 2026-07-14 16:33:21 -0500 |
| commit | 9e1dc434ca708e1134332e45918935752f4410cd (patch) | |
| tree | bd1fd1aeba2d2f39c31ee1e1e310d03be8a272d6 /include/linux | |
| parent | 9b9a6e31bdd1ff20c3ffdab87431672d8bfc2a07 (diff) | |
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: bcb9f4f07061 ("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>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/firmware/intel/stratix10-smc.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/firmware/intel/stratix10-smc.h b/include/linux/firmware/intel/stratix10-smc.h index 2c603a24967f..9224974fffc4 100644 --- a/include/linux/firmware/intel/stratix10-smc.h +++ b/include/linux/firmware/intel/stratix10-smc.h @@ -67,6 +67,9 @@ * INTEL_SIP_SMC_STATUS_REJECTED: * Secure monitor software reject the service client's request. * + * INTEL_SIP_SMC_STATUS_NO_RESPONSE: + * Secure monitor software has no response for the request yet. + * * INTEL_SIP_SMC_STATUS_ERROR: * There is error during the process of service request. * @@ -77,6 +80,7 @@ #define INTEL_SIP_SMC_STATUS_OK 0x0 #define INTEL_SIP_SMC_STATUS_BUSY 0x1 #define INTEL_SIP_SMC_STATUS_REJECTED 0x2 +#define INTEL_SIP_SMC_STATUS_NO_RESPONSE 0x3 #define INTEL_SIP_SMC_STATUS_ERROR 0x4 #define INTEL_SIP_SMC_RSU_ERROR 0x7 |