cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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platsmp.c (967B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Keystone SOC SMP platform code
      4 *
      5 * Copyright 2013 Texas Instruments, Inc.
      6 *	Cyril Chemparathy <cyril@ti.com>
      7 *	Santosh Shilimkar <santosh.shillimkar@ti.com>
      8 *
      9 * Based on platsmp.c, Copyright (C) 2002 ARM Ltd.
     10 */
     11
     12#include <linux/init.h>
     13#include <linux/smp.h>
     14#include <linux/io.h>
     15#include <linux/pgtable.h>
     16
     17#include <asm/smp_plat.h>
     18#include <asm/prom.h>
     19#include <asm/tlbflush.h>
     20
     21#include "keystone.h"
     22
     23static int keystone_smp_boot_secondary(unsigned int cpu,
     24						struct task_struct *idle)
     25{
     26	unsigned long start = virt_to_idmap(&secondary_startup);
     27	int error;
     28
     29	pr_debug("keystone-smp: booting cpu %d, vector %08lx\n",
     30		 cpu, start);
     31
     32	error = keystone_cpu_smc(KEYSTONE_MON_CPU_UP_IDX, cpu, start);
     33	if (error)
     34		pr_err("CPU %d bringup failed with %d\n", cpu, error);
     35
     36	return error;
     37}
     38
     39const struct smp_operations keystone_smp_ops __initconst = {
     40	.smp_boot_secondary	= keystone_smp_boot_secondary,
     41};