mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
synced 2025-04-15 00:54:22 +00:00
fbc415d204
This corrects the MISRA violation C2012-10.4: Both operands of an operator in which the usual arithmetic conversions are performed shall have the same essential type category. The condition is explicitly checked against 0U, appending 'U' and typecasting for unsigned comparison. Change-Id: Ia352e3cf261b52777c1c431701e1e6c3be9cd279 Signed-off-by: Maheedhar Bollapalli <maheedharsai.bollapalli@amd.com>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
/*
|
|
* Copyright (c) 2018-2019, Arm Limited and Contributors. All rights reserved.
|
|
* Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved.
|
|
* Copyright (c) 2022-2024, Advanced Micro Devices, Inc. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: BSD-3-Clause
|
|
*/
|
|
|
|
/* Top level SMC handler for SiP calls. Dispatch PM calls to PM SMC handler. */
|
|
|
|
#include <errno.h>
|
|
#include <inttypes.h>
|
|
|
|
#include <common/debug.h>
|
|
#include <common/runtime_svc.h>
|
|
#include <drivers/scmi-msg.h>
|
|
#include <scmi.h>
|
|
#include <tools_share/uuid.h>
|
|
|
|
#include "ipi_mailbox_svc.h"
|
|
#include "plat_private.h"
|
|
#include "pm_svc_main.h"
|
|
|
|
/* SMC function IDs for SiP Service queries */
|
|
#define SIP_SVC_UID (0x8200ff01U)
|
|
#define SIP_SVC_VERSION (0x8200ff03U)
|
|
|
|
/* SiP Service Calls version numbers */
|
|
#define SIP_SVC_VERSION_MAJOR (0U)
|
|
#define SIP_SVC_VERSION_MINOR (1U)
|
|
|
|
/* These macros are used to identify PM calls from the SMC function ID */
|
|
#define SIP_FID_MASK GENMASK(23, 16)
|
|
#define XLNX_FID_MASK GENMASK(23, 12)
|
|
#define PM_FID_VALUE 0u
|
|
#define IPI_FID_VALUE 0x1000u
|
|
#define is_pm_fid(_fid) (((_fid) & XLNX_FID_MASK) == PM_FID_VALUE)
|
|
#define is_ipi_fid(_fid) (((_fid) & XLNX_FID_MASK) == IPI_FID_VALUE)
|
|
|
|
/* SiP Service UUID */
|
|
DEFINE_SVC_UUID2(_sip_uuid,
|
|
0x0499eb70, 0x5ed0, 0x11ee, 0xb3, 0x0a,
|
|
0x87, 0xd1, 0x1d, 0x4f, 0x8a, 0x9b);
|
|
|
|
/**
|
|
* sip_svc_setup() - Setup SiP Service
|
|
*
|
|
* Return: 0 on success, negative error code on failure.
|
|
*
|
|
*/
|
|
static int32_t sip_svc_setup(void)
|
|
{
|
|
return sip_svc_setup_init();
|
|
}
|
|
|
|
/*
|
|
* sip_svc_smc_handler() - Top-level SiP Service SMC handler
|
|
*
|
|
* Handler for all SiP SMC calls. Handles standard SIP requests
|
|
* and calls PM SMC handler if the call is for a PM-API function.
|
|
*/
|
|
static uintptr_t sip_svc_smc_handler(uint32_t smc_fid,
|
|
u_register_t x1,
|
|
u_register_t x2,
|
|
u_register_t x3,
|
|
u_register_t x4,
|
|
void *cookie,
|
|
void *handle,
|
|
u_register_t flags)
|
|
{
|
|
VERBOSE("SMCID: 0x%08x, x1: 0x%016" PRIx64 ", x2: 0x%016" PRIx64 ", x3: 0x%016" PRIx64 ", x4: 0x%016" PRIx64 "\n",
|
|
smc_fid, x1, x2, x3, x4);
|
|
|
|
if ((smc_fid & SIP_FID_MASK) != 0U) {
|
|
WARN("SMC out of SiP assinged range: 0x%x\n", smc_fid);
|
|
SMC_RET1(handle, SMC_UNK);
|
|
}
|
|
|
|
/* Let PM SMC handler deal with PM-related requests */
|
|
if (is_pm_fid(smc_fid)) {
|
|
return smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle, flags);
|
|
}
|
|
|
|
/* Let IPI SMC handler deal with IPI-related requests if platform */
|
|
if (is_ipi_fid(smc_fid)) {
|
|
return ipi_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle, flags);
|
|
}
|
|
|
|
/* Let PM SMC handler deal with PM-related requests */
|
|
switch (smc_fid) {
|
|
case SIP_SVC_UID:
|
|
SMC_UUID_RET(handle, _sip_uuid);
|
|
|
|
case SIP_SVC_VERSION:
|
|
SMC_RET2(handle, SIP_SVC_VERSION_MAJOR, SIP_SVC_VERSION_MINOR);
|
|
|
|
case SIP_SCMI:
|
|
if (platform_id != EMU) {
|
|
scmi_smt_fastcall_smc_entry(0);
|
|
SMC_RET1(handle, 0);
|
|
}
|
|
WARN("SCMI is not working on EMU\n");
|
|
SMC_RET1(handle, SMC_UNK);
|
|
default:
|
|
WARN("Unimplemented SiP Service Call: 0x%x\n", smc_fid);
|
|
SMC_RET1(handle, SMC_UNK);
|
|
}
|
|
}
|
|
|
|
/* Register PM Service Calls as runtime service */
|
|
DECLARE_RT_SVC(
|
|
sip_svc,
|
|
OEN_SIP_START,
|
|
OEN_SIP_END,
|
|
SMC_TYPE_FAST,
|
|
sip_svc_setup,
|
|
sip_svc_smc_handler);
|