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27749653c7
Use the same format in all files 's/Copyright (C)/Copyright (c)/g'. Change-Id: I0e200eb135e7369d0e6b3b694acd406ec10ca9e7 Signed-off-by: Michal Simek <michal.simek@amd.com>
111 lines
3.1 KiB
C
111 lines
3.1 KiB
C
/*
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* Copyright (c) 2018-2019, Arm Limited and Contributors. All rights reserved.
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* Copyright (c) 2018-2022, Xilinx, Inc. All rights reserved.
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* Copyright (c) 2022, Advanced Micro Devices, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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/* Top level SMC handler for SiP calls. Dispatch PM calls to PM SMC handler. */
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#include <errno.h>
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#include <inttypes.h>
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#include <common/debug.h>
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#include <common/runtime_svc.h>
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#include <tools_share/uuid.h>
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#include "ipi_mailbox_svc.h"
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#include "plat_private.h"
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#include "pm_svc_main.h"
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/* SMC function IDs for SiP Service queries */
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#define VERSAL_NET_SIP_SVC_CALL_COUNT (0x8200ff00U)
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#define VERSAL_NET_SIP_SVC_UID (0x8200ff01U)
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#define VERSAL_NET_SIP_SVC_VERSION (0x8200ff03U)
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/* SiP Service Calls version numbers */
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#define SIP_SVC_VERSION_MAJOR (0U)
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#define SIP_SVC_VERSION_MINOR (1U)
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/* These macros are used to identify PM calls from the SMC function ID */
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#define SIP_FID_MASK GENMASK(23, 16)
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#define XLNX_FID_MASK GENMASK(23, 12)
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#define PM_FID_VALUE 0u
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#define IPI_FID_VALUE 0x1000u
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#define is_pm_fid(_fid) (((_fid) & XLNX_FID_MASK) == PM_FID_VALUE)
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#define is_ipi_fid(_fid) (((_fid) & XLNX_FID_MASK) == IPI_FID_VALUE)
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/* SiP Service UUID */
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DEFINE_SVC_UUID2(versal_net_sip_uuid,
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0x80d4c25a, 0xebaf, 0x11eb, 0x94, 0x68,
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0x0b, 0x4e, 0x3b, 0x8f, 0xc3, 0x60);
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/**
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* sip_svc_setup() - Setup SiP Service
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*/
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static int32_t sip_svc_setup(void)
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{
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return sip_svc_setup_init();
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}
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/*
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* sip_svc_smc_handler() - Top-level SiP Service SMC handler
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*
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* Handler for all SiP SMC calls. Handles standard SIP requests
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* and calls PM SMC handler if the call is for a PM-API function.
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*/
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static uintptr_t sip_svc_smc_handler(uint32_t smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags)
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{
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VERBOSE("SMCID: 0x%08x, x1: 0x%016" PRIx64 ", x2: 0x%016" PRIx64 ", x3: 0x%016" PRIx64 ", x4: 0x%016" PRIx64 "\n",
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smc_fid, x1, x2, x3, x4);
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if (smc_fid & SIP_FID_MASK) {
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WARN("SMC out of SiP assinged range: 0x%x\n", smc_fid);
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SMC_RET1(handle, SMC_UNK);
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}
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/* Let PM SMC handler deal with PM-related requests */
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if (is_pm_fid(smc_fid)) {
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return smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle,
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flags);
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}
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/* Let IPI SMC handler deal with IPI-related requests if platform */
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if (is_ipi_fid(smc_fid)) {
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return ipi_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle, flags);
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}
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/* Let PM SMC handler deal with PM-related requests */
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switch (smc_fid) {
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case VERSAL_NET_SIP_SVC_CALL_COUNT:
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/* PM functions + default functions */
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SMC_RET1(handle, 2);
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case VERSAL_NET_SIP_SVC_UID:
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SMC_UUID_RET(handle, versal_net_sip_uuid);
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case VERSAL_NET_SIP_SVC_VERSION:
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SMC_RET2(handle, SIP_SVC_VERSION_MAJOR, SIP_SVC_VERSION_MINOR);
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default:
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WARN("Unimplemented SiP Service Call: 0x%x\n", smc_fid);
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SMC_RET1(handle, SMC_UNK);
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}
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}
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/* Register PM Service Calls as runtime service */
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DECLARE_RT_SVC(
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sip_svc,
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OEN_SIP_START,
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OEN_SIP_END,
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SMC_TYPE_FAST,
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sip_svc_setup,
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sip_svc_smc_handler);
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