Release 4.14 arch/sparc/prom/mp.c

// SPDX-License-Identifier: GPL-2.0
/*
 * mp.c:  OpenBoot Prom Multiprocessor support routines.  Don't call
 *        these on a UP or else you will halt and catch fire. ;)
 *
 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
 */

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>

#include <asm/openprom.h>
#include <asm/oplib.h>

extern void restore_current(void);

/* Start cpu with prom-tree node 'cpunode' using context described
 * by 'ctable_reg' in context 'ctx' at program counter 'pc'.
 *
 * XXX Have to look into what the return values mean. XXX
 */

int

prom_startcpu(int cpunode, struct linux_prom_registers *ctable_reg, int ctx, char *pc)
{
	int ret;
	unsigned long flags;

	spin_lock_irqsave(&prom_lock, flags);
	switch(prom_vers) {
	case PROM_V0:
	case PROM_V2:
	default:
		ret = -1;
		break;
	case PROM_V3:
		ret = (*(romvec->v3_cpustart))(cpunode, (int) ctable_reg, ctx, pc);
		break;
	}
	restore_current();
	spin_unlock_irqrestore(&prom_lock, flags);

	return ret;
}
Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
95
100.00%
4
100.00%
Total
95
100.00%
4
100.00%

Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
118
98.33%
5
71.43%
Adrian Bunk
1
0.83%
1
14.29%
Greg Kroah-Hartman
1
0.83%
1
14.29%
Total
120
100.00%
7
100.00%
Directory: arch/sparc/prom

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