1/* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * Copyright (C) 2002-2006 Silicon Graphics, Inc. All Rights Reserved. 7 */ 8#ifndef _ASM_IA64_SN_RW_MMR_H 9#define _ASM_IA64_SN_RW_MMR_H 10 11 12/* 13 * This file that access MMRs via uncached physical addresses. 14 * pio_phys_read_mmr - read an MMR 15 * pio_phys_write_mmr - write an MMR 16 * pio_atomic_phys_write_mmrs - atomically write 1 or 2 MMRs with psr.ic=0 17 * Second MMR will be skipped if address is NULL 18 * 19 * Addresses passed to these routines should be uncached physical addresses 20 * ie., 0x80000.... 21 */ 22 23 24extern long pio_phys_read_mmr(volatile long *mmr); 25extern void pio_phys_write_mmr(volatile long *mmr, long val); 26extern void pio_atomic_phys_write_mmrs(volatile long *mmr1, long val1, volatile long *mmr2, long val2); 27 28#endif /* _ASM_IA64_SN_RW_MMR_H */ 29