From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 11:13:47 +0200 Subject: Adding upstream version 2.8.0+dfsg. Signed-off-by: Daniel Baumann --- plat/xilinx/versal/sip_svc_setup.c | 102 +++++++++++++++++++++++++++++++++++++ 1 file changed, 102 insertions(+) create mode 100644 plat/xilinx/versal/sip_svc_setup.c (limited to 'plat/xilinx/versal/sip_svc_setup.c') diff --git a/plat/xilinx/versal/sip_svc_setup.c b/plat/xilinx/versal/sip_svc_setup.c new file mode 100644 index 0000000..6f2ff94 --- /dev/null +++ b/plat/xilinx/versal/sip_svc_setup.c @@ -0,0 +1,102 @@ +/* + * Copyright (c) 2018-2021, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +/* Top level SMC handler for SiP calls. Dispatch PM calls to PM SMC handler. */ + +#include +#include +#include + +#include "ipi_mailbox_svc.h" +#include "pm_svc_main.h" + +/* SMC function IDs for SiP Service queries */ +#define VERSAL_SIP_SVC_CALL_COUNT U(0x8200ff00) +#define VERSAL_SIP_SVC_UID U(0x8200ff01) +#define VERSAL_SIP_SVC_VERSION U(0x8200ff03) + +/* SiP Service Calls version numbers */ +#define SIP_SVC_VERSION_MAJOR U(0) +#define SIP_SVC_VERSION_MINOR U(1) + +/* These macros are used to identify PM calls from the SMC function ID */ +#define PM_FID_MASK 0xf000u +#define PM_FID_VALUE 0u +#define IPI_FID_VALUE 0x1000u +#define is_pm_fid(_fid) (((_fid) & PM_FID_MASK) == PM_FID_VALUE) +#define is_ipi_fid(_fid) (((_fid) & PM_FID_MASK) == IPI_FID_VALUE) + +/* SiP Service UUID */ +DEFINE_SVC_UUID2(versal_sip_uuid, + 0x2ab9e4ecU, 0x93b9U, 0x11e7U, 0xa0U, 0x19U, + 0xdfU, 0xe0U, 0xdbU, 0xadU, 0x0aU, 0xe0U); + +/** + * sip_svc_setup() - Setup SiP Service + * + * Invokes PM setup + */ +static int32_t sip_svc_setup(void) +{ + /* PM implementation as SiP Service */ + (void)pm_setup(); + + return 0; +} + +/** + * 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. + */ +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) +{ + /* Let PM SMC handler deal with PM-related requests */ + if (is_pm_fid(smc_fid)) { + return pm_smc_handler(smc_fid, x1, x2, x3, x4, cookie, handle, + flags); + } + + /* Let IPI SMC handler deal with IPI-related requests */ + 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 VERSAL_SIP_SVC_CALL_COUNT: + /* PM functions + default functions */ + SMC_RET1(handle, 2); + + case VERSAL_SIP_SVC_UID: + SMC_UUID_RET(handle, versal_sip_uuid); + + case VERSAL_SIP_SVC_VERSION: + SMC_RET2(handle, SIP_SVC_VERSION_MAJOR, SIP_SVC_VERSION_MINOR); + + 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); -- cgit v1.2.3