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feat(xilinx): add feature check function for TF-A specific APIs

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Currently, there is common feature check function for firmware APIs
and TF-A specific APIs. This should be separate from firmware APIs.
So add new TF-A API for feature check of TF-A specific APIs.

Signed-off-by: Jay Buddhabhatti <jay.buddhabhatti@amd.com>
Change-Id: I5585d17fb6aa1e98989d935117cca10bdb85133e
This commit is contained in:
Jay Buddhabhatti 2024-07-01 04:28:56 -07:00
parent c26aa08bee
commit 9a0f5d128a
4 changed files with 42 additions and 0 deletions
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1
plat/xilinx/common/include/pm_api_sys.h
View file

@ -64,6 +64,7 @@ enum pm_ret_status pm_register_notifier(uint32_t device_id, uint32_t event,
uint32_t wake, uint32_t enable,
uint32_t flag);
enum pm_ret_status pm_get_chipid(uint32_t *value);
enum pm_ret_status eemi_feature_check(uint32_t api_id, uint32_t *ret_payload);
/*
* Assigning of argument values into array elements.

1
plat/xilinx/common/include/pm_defs.h
View file

@ -35,6 +35,7 @@
(uint32_t)XPM_NODESUBCL_DEV_PERIPH, \
(uint32_t)XPM_NODETYPE_DEV_PERIPH, (IDX))
#define TF_A_FEATURE_CHECK 0xa00U
#define PM_GET_CALLBACK_DATA 0xa01U
#define PM_GET_TRUSTZONE_VERSION 0xa03U
#define TF_A_PM_REGISTER_SGI 0xa04U

31
plat/xilinx/common/pm_service/pm_api_sys.c
View file

@ -363,6 +363,37 @@ enum pm_ret_status pm_set_wakeup_source(uint32_t target, uint32_t wkup_device,
return pm_ipi_send_sync(primary_proc, payload, NULL, 0);
}
/**
* eemi_feature_check() - Returns the supported API version if supported.
* @api_id: API ID to check.
* @ret_payload: pointer to array of PAYLOAD_ARG_CNT number of
* words Returned supported API version
*
* Return: Returns status, either success or error+reason.
*/
enum pm_ret_status eemi_feature_check(uint32_t api_id, uint32_t *ret_payload)
{
enum pm_ret_status ret;
/* Return version of API which are implemented in TF-A only */
switch (api_id) {
case PM_GET_CALLBACK_DATA:
case PM_GET_TRUSTZONE_VERSION:
ret_payload[0] = PM_API_VERSION_2;
ret = PM_RET_SUCCESS;
break;
case TF_A_PM_REGISTER_SGI:
case TF_A_FEATURE_CHECK:
ret_payload[0] = PM_API_BASE_VERSION;
ret = PM_RET_SUCCESS;
break;
default:
ret = PM_RET_ERROR_NO_FEATURE;
}
return ret;
}
/**
* pm_feature_check() - Returns the supported API version if supported.
* @api_id: API ID to check.

9
plat/xilinx/common/pm_service/pm_svc_main.c
View file

@ -393,6 +393,15 @@ static uintptr_t TF_A_specific_handler(uint32_t api_id, uint32_t *pm_arg,
{
switch (api_id) {
case TF_A_FEATURE_CHECK:
{
enum pm_ret_status ret;
uint32_t result[PAYLOAD_ARG_CNT] = {0U};
ret = eemi_feature_check(pm_arg[0], result);
SMC_RET1(handle, (uint64_t)ret | ((uint64_t)result[0] << 32U));
}
case TF_A_PM_REGISTER_SGI:
{
int32_t ret;