Commit 7935e899 authored by Ang Tien Sung's avatar Ang Tien Sung Committed by Greg Kroah-Hartman
Browse files

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: default avatarAng Tien Sung <tien.sung.ang@intel.com>
Signed-off-by: default avatarDinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20220711223140.2307945-6-dinguyen@kernel.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 1b4394c5

drivers/firmware/stratix10-svc.c

+10 −0
Original line number Diff line number Diff line
@@ -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;

include/linux/firmware/intel/stratix10-smc.h

+18 −0
Original line number Diff line number Diff line
@@ -466,6 +466,24 @@ INTEL_SIP_SMC_FAST_CALL_VAL(INTEL_SIP_SMC_FUNCID_FPGA_CONFIG_COMPLETED_WRITE) 
#define INTEL_SIP_SMC_FIRMWARE_VERSION \

        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

include/linux/firmware/intel/stratix10-svc-client.h

+5 −0
Original line number Diff line number Diff line
@@ -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,

};



/**