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-rw-r--r--drivers/firmware/stratix10-svc.c18
-rw-r--r--include/linux/firmware/intel/stratix10-smc.h25
-rw-r--r--include/linux/firmware/intel/stratix10-svc-client.h5
3 files changed, 48 insertions, 0 deletions
diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c
index cab11af28c23..c693da60e9a9 100644
--- a/drivers/firmware/stratix10-svc.c
+++ b/drivers/firmware/stratix10-svc.c
@@ -37,6 +37,7 @@
#define SVC_NUM_CHANNEL 3
#define FPGA_CONFIG_DATA_CLAIM_TIMEOUT_MS 200
#define FPGA_CONFIG_STATUS_TIMEOUT_SEC 30
+#define BYTE_TO_WORD_SIZE 4
/* stratix10 service layer clients */
#define STRATIX10_RSU "stratix10-rsu"
@@ -361,6 +362,13 @@ static void svc_thread_recv_status_ok(struct stratix10_svc_data *p_data,
cb_data->kaddr2 = svc_pa_to_va(res.a2);
cb_data->kaddr3 = &res.a3;
break;
+ case COMMAND_MBOX_SEND_CMD:
+ cb_data->status = BIT(SVC_STATUS_OK);
+ cb_data->kaddr1 = &res.a1;
+ /* SDM return size in u8. Convert size to u32 word */
+ res.a2 = res.a2 * BYTE_TO_WORD_SIZE;
+ cb_data->kaddr2 = &res.a2;
+ break;
default:
pr_warn("it shouldn't happen\n");
break;
@@ -534,6 +542,15 @@ static int svc_normal_to_secure_thread(void *data)
a1 = 0;
a2 = 0;
break;
+ case COMMAND_MBOX_SEND_CMD:
+ a0 = INTEL_SIP_SMC_MBOX_SEND_CMD;
+ a1 = pdata->arg[0];
+ a2 = (unsigned long)pdata->paddr;
+ a3 = (unsigned long)pdata->size / BYTE_TO_WORD_SIZE;
+ a4 = pdata->arg[1];
+ a5 = (unsigned long)pdata->paddr_output;
+ a6 = (unsigned long)pdata->size_output / BYTE_TO_WORD_SIZE;
+ break;
default:
pr_warn("it shouldn't happen\n");
break;
@@ -597,6 +614,7 @@ static int svc_normal_to_secure_thread(void *data)
case COMMAND_FCS_DATA_ENCRYPTION:
case COMMAND_FCS_DATA_DECRYPTION:
case COMMAND_FCS_RANDOM_NUMBER_GEN:
+ case COMMAND_MBOX_SEND_CMD:
cbdata->status = BIT(SVC_STATUS_INVALID_PARAM);
cbdata->kaddr1 = NULL;
cbdata->kaddr2 = NULL;
diff --git a/include/linux/firmware/intel/stratix10-smc.h b/include/linux/firmware/intel/stratix10-smc.h
index a718f853d457..ee80ca4bb0d0 100644
--- a/include/linux/firmware/intel/stratix10-smc.h
+++ b/include/linux/firmware/intel/stratix10-smc.h
@@ -467,6 +467,31 @@ 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)
/**
+ * SMC call protocol for Mailbox, starting FUNCID from 60
+ *
+ * Call register usage:
+ * a0 INTEL_SIP_SMC_MBOX_SEND_CMD
+ * a1 mailbox command code
+ * a2 physical address that contain mailbox command data (not include header)
+ * a3 mailbox command data size in word
+ * a4 set to 0 for CASUAL, set to 1 for URGENT
+ * a5 physical address for secure firmware to put response data
+ * (not include header)
+ * a6 maximum size in word of physical address to store response data
+ * a7 not used
+ *
+ * Return status
+ * a0 INTEL_SIP_SMC_STATUS_OK, INTEL_SIP_SMC_STATUS_REJECTED or
+ * INTEL_SIP_SMC_STATUS_ERROR
+ * a1 mailbox error code
+ * a2 response data length in word
+ * a3 not used
+ */
+#define INTEL_SIP_SMC_FUNCID_MBOX_SEND_CMD 60
+ #define INTEL_SIP_SMC_MBOX_SEND_CMD \
+ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_MBOX_SEND_CMD)
+
+/**
* Request INTEL_SIP_SMC_SVC_VERSION
*
* Sync call used to query the SIP SMC API Version
diff --git a/include/linux/firmware/intel/stratix10-svc-client.h b/include/linux/firmware/intel/stratix10-svc-client.h
index 0c16037fd08d..60ed82112680 100644
--- a/include/linux/firmware/intel/stratix10-svc-client.h
+++ b/include/linux/firmware/intel/stratix10-svc-client.h
@@ -118,6 +118,9 @@ struct stratix10_svc_chan;
* @COMMAND_SMC_SVC_VERSION: Non-mailbox SMC SVC API Version,
* return status is SVC_STATUS_OK
*
+ * @COMMAND_MBOX_SEND_CMD: send generic mailbox command, return status is
+ * SVC_STATUS_OK or SVC_STATUS_ERROR
+ *
* @COMMAND_RSU_DCMF_STATUS: query firmware for the DCMF status
* return status is SVC_STATUS_OK or SVC_STATUS_ERROR
*
@@ -164,6 +167,8 @@ enum stratix10_svc_command_code {
COMMAND_FCS_RANDOM_NUMBER_GEN,
/* for general status poll */
COMMAND_POLL_SERVICE_STATUS = 40,
+ /* for generic mailbox send command */
+ COMMAND_MBOX_SEND_CMD = 100,
/* Non-mailbox SMC Call */
COMMAND_SMC_SVC_VERSION = 200,
};