89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
|
/*-
|
||
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
||
|
*
|
||
|
* Copyright (c) 2021 Adrian Chadd <adrian@FreeBSD.org>
|
||
|
*
|
||
|
* Redistribution and use in source and binary forms, with or without
|
||
|
* modification, are permitted provided that the following conditions
|
||
|
* are met:
|
||
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
* notice, this list of conditions and the following disclaimer.
|
||
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
* documentation and/or other materials provided with the distribution.
|
||
|
*
|
||
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
||
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
||
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
* SUCH DAMAGE.
|
||
|
*/
|
||
|
|
||
|
#include "opt_platform.h"
|
||
|
|
||
|
#include <sys/cdefs.h>
|
||
|
__FBSDID("$FreeBSD$");
|
||
|
|
||
|
#include <sys/param.h>
|
||
|
#include <sys/systm.h>
|
||
|
#include <sys/bus.h>
|
||
|
#include <sys/reboot.h>
|
||
|
#include <sys/devmap.h>
|
||
|
#include <sys/smp.h>
|
||
|
|
||
|
#include <vm/vm.h>
|
||
|
#include <vm/pmap.h>
|
||
|
|
||
|
#include <machine/cpu.h>
|
||
|
#include <machine/bus.h>
|
||
|
#include <machine/intr.h>
|
||
|
#include <machine/machdep.h>
|
||
|
#include <machine/smp.h>
|
||
|
|
||
|
#include <arm/qualcomm/qcom_scm_defs.h>
|
||
|
#include <arm/qualcomm/qcom_scm_legacy_defs.h>
|
||
|
#include <arm/qualcomm/qcom_scm_legacy.h>
|
||
|
|
||
|
#include <dev/psci/smccc.h>
|
||
|
|
||
|
/*
|
||
|
* Set the cold boot address for (later) a mask of CPUs.
|
||
|
*
|
||
|
* Don't set it for CPU0, that CPU is the boot CPU and is already alive.
|
||
|
*
|
||
|
* For now it sets it on CPU1..3.
|
||
|
*
|
||
|
* This works on the IPQ4019 as tested; the retval is 0x0.
|
||
|
*/
|
||
|
uint32_t
|
||
|
qcom_scm_legacy_mp_set_cold_boot_address(vm_offset_t mp_entry_func)
|
||
|
{
|
||
|
struct arm_smccc_res res;
|
||
|
int ret;
|
||
|
int context_id;
|
||
|
|
||
|
uint32_t scm_arg0 = QCOM_SCM_LEGACY_ATOMIC_ID(QCOM_SCM_SVC_BOOT,
|
||
|
QCOM_SCM_BOOT_SET_ADDR, 2);
|
||
|
|
||
|
uint32_t scm_arg1 = QCOM_SCM_FLAG_COLDBOOT_CPU1
|
||
|
| QCOM_SCM_FLAG_COLDBOOT_CPU2
|
||
|
| QCOM_SCM_FLAG_COLDBOOT_CPU3;
|
||
|
uint32_t scm_arg2 = pmap_kextract((vm_offset_t)mp_entry_func);
|
||
|
|
||
|
ret = arm_smccc_smc(scm_arg0, (uint32_t) &context_id, scm_arg1,
|
||
|
scm_arg2, 0, 0, 0, 0, &res);
|
||
|
|
||
|
if (ret == 0 && res.a0 == 0)
|
||
|
return (0);
|
||
|
printf("%s: called; error; ret=0x%08x; retval[0]=0x%08x\n",
|
||
|
__func__, ret, res.a0);
|
||
|
|
||
|
return (0);
|
||
|
}
|