diff options
| author |   Ang Tien Sung <tien.sung.ang@intel.com> | 2022-07-11 17:31:40 -0500 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-07-14 16:55:09 +0200 |
| commit | 7935e899b35c93faa26e1d272a51b3d9cb39f23f (patch) | |
| tree | b02f7c146bf54b4c2b909f8a74742841ae947c8c | |
| parent | firmware: stratix10-svc: extend svc to support RSU feature (diff) | |
| download | linux-dev-7935e899b35c93faa26e1d272a51b3d9cb39f23f.tar.xz linux-dev-7935e899b35c93faa26e1d272a51b3d9cb39f23f.zip | |
firmware: stratix10-svc: To support a command ATF Get Version
We are to support a new SMC Command of hexadecimal 0x200 that returns
the ATF Firmware major and minor version.
Signed-off-by: Ang Tien Sung <tien.sung.ang@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20220711223140.2307945-6-dinguyen@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/firmware/stratix10-svc.c | 10 | ||||
| -rw-r--r-- | include/linux/firmware/intel/stratix10-smc.h | 18 | ||||
| -rw-r--r-- | include/linux/firmware/intel/stratix10-svc-client.h | 5 |
3 files changed, 33 insertions, 0 deletions
diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c index 7fea94fe2ca0..b4081f4d88a3 100644 --- a/drivers/firmware/stratix10-svc.c +++ b/drivers/firmware/stratix10-svc.c @@ -343,6 +343,11 @@ static void svc_thread_recv_status_ok(struct stratix10_svc_data *p_data, cb_data->status = BIT(SVC_STATUS_OK); cb_data->kaddr1 = &res.a1; break; + case COMMAND_SMC_SVC_VERSION: + cb_data->status = BIT(SVC_STATUS_OK); + cb_data->kaddr1 = &res.a1; + cb_data->kaddr2 = &res.a2; + break; case COMMAND_RSU_DCMF_VERSION: cb_data->status = BIT(SVC_STATUS_OK); cb_data->kaddr1 = &res.a1; @@ -524,6 +529,11 @@ static int svc_normal_to_secure_thread(void *data) a1 = 0; a2 = 0; break; + case COMMAND_SMC_SVC_VERSION: + a0 = INTEL_SIP_SMC_SVC_VERSION; + a1 = 0; + a2 = 0; + break; default: pr_warn("it shouldn't happen\n"); break; diff --git a/include/linux/firmware/intel/stratix10-smc.h b/include/linux/firmware/intel/stratix10-smc.h index 8fc4aa450517..a718f853d457 100644 --- a/include/linux/firmware/intel/stratix10-smc.h +++ b/include/linux/firmware/intel/stratix10-smc.h @@ -467,6 +467,24 @@ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FPGA_CONFIG_COMPLETED_WRITE) INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FIRMWARE_VERSION) /** + * Request INTEL_SIP_SMC_SVC_VERSION + * + * Sync call used to query the SIP SMC API Version + * + * Call register usage: + * a0 INTEL_SIP_SMC_SVC_VERSION + * a1-a7 not used + * + * Return status: + * a0 INTEL_SIP_SMC_STATUS_OK + * a1 Major + * a2 Minor + */ +#define INTEL_SIP_SMC_SVC_FUNCID_VERSION 512 +#define INTEL_SIP_SMC_SVC_VERSION \ + INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_SVC_FUNCID_VERSION) + +/** * SMC call protocol for FPGA Crypto Service (FCS) * FUNCID starts from 90 */ diff --git a/include/linux/firmware/intel/stratix10-svc-client.h b/include/linux/firmware/intel/stratix10-svc-client.h index 82a20e62f15f..a776a787ac75 100644 --- a/include/linux/firmware/intel/stratix10-svc-client.h +++ b/include/linux/firmware/intel/stratix10-svc-client.h @@ -114,6 +114,9 @@ struct stratix10_svc_chan; * @COMMAND_FIRMWARE_VERSION: query running firmware version, return status * is SVC_STATUS_OK or SVC_STATUS_ERROR * + * @COMMAND_SMC_SVC_VERSION: Non-mailbox SMC SVC API Version, + * return status is SVC_STATUS_OK + * * @COMMAND_RSU_DCMF_STATUS: query firmware for the DCMF status * return status is SVC_STATUS_OK or SVC_STATUS_ERROR * @@ -160,6 +163,8 @@ enum stratix10_svc_command_code { COMMAND_FCS_RANDOM_NUMBER_GEN, /* for general status poll */ COMMAND_POLL_SERVICE_STATUS = 40, + /* Non-mailbox SMC Call */ + COMMAND_SMC_SVC_VERSION = 200, }; /** |