1/* $Id: segment.c,v 1.1.1.1 2007/08/03 18:52:18 Exp $ 2 * segment.c: Prom routine to map segments in other contexts before 3 * a standalone is completely mapped. This is for sun4 and 4 * sun4c architectures only. 5 * 6 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) 7 */ 8 9#include <linux/types.h> 10#include <linux/kernel.h> 11#include <linux/sched.h> 12#include <asm/openprom.h> 13#include <asm/oplib.h> 14 15extern void restore_current(void); 16 17/* Set physical segment 'segment' at virtual address 'vaddr' in 18 * context 'ctx'. 19 */ 20void 21prom_putsegment(int ctx, unsigned long vaddr, int segment) 22{ 23 unsigned long flags; 24 spin_lock_irqsave(&prom_lock, flags); 25 (*(romvec->pv_setctxt))(ctx, (char *) vaddr, segment); 26 restore_current(); 27 spin_unlock_irqrestore(&prom_lock, flags); 28 return; 29} 30