iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

firmware: stratix10-svc: To support a command ATF Get Version

Browse Source 
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>
This commit is contained in:
Ang Tien Sung 2022-07-11 17:31:40 -05:00 committed by Greg Kroah-Hartman
parent 1b4394c5d7
commit 7935e899b3
3 changed files with 33 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/firmware/stratix10-svc.c
View File

@ -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;

18
include/linux/firmware/intel/stratix10-smc.h
View File

@ -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

5
include/linux/firmware/intel/stratix10-svc-client.h
View File

@ -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,
};
/**