mirror of
https://github.com/ARM-software/arm-trusted-firmware.git
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57d1e5faf2
Commit 4c0d039076 ("Rework type usage in Trusted Firmware") changed
the type usage in struct declarations, but did not touch the definition
side. Fix the type mismatch.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
132 lines
4.1 KiB
C
132 lines
4.1 KiB
C
/*
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* Copyright (c) 2015, ARM Limited and Contributors. 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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#include <arch_helpers.h>
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#include <assert.h>
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#include <bl_common.h>
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#include <context_mgmt.h>
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#include <debug.h>
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#include <psci.h>
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#include <tlk.h>
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#include "tlkd_private.h"
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extern tlk_context_t tlk_ctx;
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#define MPIDR_CPU0 0x80000000
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/*******************************************************************************
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* Return the type of payload TLKD is dealing with. Report the current
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* resident cpu (mpidr format) if it is a UP/UP migratable payload.
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******************************************************************************/
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static int32_t cpu_migrate_info(u_register_t *resident_cpu)
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{
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/* the payload runs only on CPU0 */
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*resident_cpu = MPIDR_CPU0;
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/* Uniprocessor, not migrate capable payload */
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return PSCI_TOS_NOT_UP_MIG_CAP;
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}
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/*******************************************************************************
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* This cpu is being suspended. Inform TLK of the SYSTEM_SUSPEND event, so
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* that it can pass this information to its Trusted Apps.
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******************************************************************************/
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static void cpu_suspend_handler(u_register_t suspend_level)
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{
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gp_regs_t *gp_regs;
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int cpu = read_mpidr() & MPIDR_CPU_MASK;
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int32_t rc = 0;
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/*
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* TLK runs only on CPU0 and suspends its Trusted Apps during
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* SYSTEM_SUSPEND. It has no role to play during CPU_SUSPEND.
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*/
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if ((cpu != 0) || (suspend_level != PLAT_MAX_PWR_LVL))
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return;
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/* pass system suspend event to TLK */
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gp_regs = get_gpregs_ctx(&tlk_ctx.cpu_ctx);
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write_ctx_reg(gp_regs, CTX_GPREG_X0, TLK_SYSTEM_SUSPEND);
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/* Program the entry point and enter TLK */
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rc = tlkd_synchronous_sp_entry(&tlk_ctx);
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/*
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* Read the response from TLK. A non-zero return means that
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* something went wrong while communicating with it.
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*/
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if (rc != 0)
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panic();
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}
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/*******************************************************************************
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* This cpu is being resumed. Inform TLK of the SYSTEM_SUSPEND exit, so
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* that it can pass this information to its Trusted Apps.
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******************************************************************************/
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static void cpu_resume_handler(u_register_t suspend_level)
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{
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gp_regs_t *gp_regs;
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int cpu = read_mpidr() & MPIDR_CPU_MASK;
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int32_t rc = 0;
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/*
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* TLK runs only on CPU0 and resumes its Trusted Apps during
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* SYSTEM_SUSPEND exit. It has no role to play during CPU_SUSPEND
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* exit.
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*/
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if ((cpu != 0) || (suspend_level != PLAT_MAX_PWR_LVL))
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return;
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/* pass system resume event to TLK */
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gp_regs = get_gpregs_ctx(&tlk_ctx.cpu_ctx);
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write_ctx_reg(gp_regs, CTX_GPREG_X0, TLK_SYSTEM_RESUME);
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/* Program the entry point and enter TLK */
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rc = tlkd_synchronous_sp_entry(&tlk_ctx);
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/*
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* Read the response from TLK. A non-zero return means that
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* something went wrong while communicating with it.
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*/
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if (rc != 0)
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panic();
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}
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/*******************************************************************************
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* System is about to be reset. Inform the SP to allow any book-keeping
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******************************************************************************/
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static void system_off_handler(void)
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{
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int cpu = read_mpidr() & MPIDR_CPU_MASK;
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gp_regs_t *gp_regs;
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/* TLK runs only on CPU0 */
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if (cpu != 0)
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return;
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/* pass system off/reset events to TLK */
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gp_regs = get_gpregs_ctx(&tlk_ctx.cpu_ctx);
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write_ctx_reg(gp_regs, CTX_GPREG_X0, TLK_SYSTEM_OFF);
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/*
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* Enter the SP. We do not care about the return value because we
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* must continue with the shutdown anyway.
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*/
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(void)tlkd_synchronous_sp_entry(&tlk_ctx);
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}
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/*******************************************************************************
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* Structure populated by the Dispatcher to be given a chance to perform any
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* bookkeeping before PSCI executes a power mgmt. operation.
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******************************************************************************/
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const spd_pm_ops_t tlkd_pm_ops = {
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.svc_migrate_info = cpu_migrate_info,
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.svc_suspend = cpu_suspend_handler,
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.svc_suspend_finish = cpu_resume_handler,
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.svc_system_off = system_off_handler,
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.svc_system_reset = system_off_handler
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};
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