diff options
Diffstat (limited to 'usr/src/uts/sun4v/sys/lpad.h')
| -rw-r--r-- | usr/src/uts/sun4v/sys/lpad.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/usr/src/uts/sun4v/sys/lpad.h b/usr/src/uts/sun4v/sys/lpad.h new file mode 100644 index 0000000000..e538702220 --- /dev/null +++ b/usr/src/uts/sun4v/sys/lpad.h @@ -0,0 +1,95 @@ +/* + * CDDL HEADER START + * + * The contents of this file are subject to the terms of the + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. + * + * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE + * or http://www.opensolaris.org/os/licensing. + * See the License for the specific language governing permissions + * and limitations under the License. + * + * When distributing Covered Code, include this CDDL HEADER in each + * file and include the License file at usr/src/OPENSOLARIS.LICENSE. + * If applicable, add the following below this CDDL HEADER, with the + * fields enclosed by brackets "[]" replaced with your own identifying + * information: Portions Copyright [yyyy] [name of copyright owner] + * + * CDDL HEADER END + */ + +/* + * Copyright 2006 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _LPAD_H +#define _LPAD_H + +#pragma ident "%Z%%M% %I% %E% SMI" + +/* + * sun4v Landing Pad + */ + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef _ASM + +#include <sys/pte.h> + +typedef union { + struct { + unsigned int rsvd0:32; + unsigned int rsvd1:29; + unsigned int perm:1; + unsigned int mmuflags:2; + } flag_bits; + uint64_t ll; +} lpad_map_flag_t; + +typedef struct lpad_map { + lpad_map_flag_t flags; + uint64_t va; + tte_t tte; +} lpad_map_t; + +#define flag_mmuflags flags.flag_bits.mmuflags +#define flag_perm flags.flag_bits.perm + +typedef struct lpad_data { + uint64_t magic; /* magic value for sanity checking */ + uint64_t *inuse; /* clear flag when done with lpad */ + uint64_t mmfsa_ra; /* RA of MMU fault status area */ + uint64_t pc; /* VA of CPU startup function */ + uint64_t arg; /* argument to startup function */ + uint64_t nmap; /* number of mappings */ + lpad_map_t map[1]; /* array of mappings */ +} lpad_data_t; + +extern uint64_t *lpad_setup(int cpuid, uint64_t pc, uint64_t arg); + +#endif /* ! _ASM */ + +/* + * General landing pad constants + */ +#define LPAD_TEXT_SIZE 1024 +#define LPAD_DATA_SIZE 1024 +#define LPAD_SIZE (LPAD_TEXT_SIZE + LPAD_DATA_SIZE) +#define LPAD_MAGIC_VAL 0x4C502D4D41474943 /* "LP-MAGIC" */ + +/* + * Masks for the lpad_map_t flag bitfield + */ +#define FLAG_MMUFLAGS_MASK 0x3 +#define FLAG_LOCK_MASK 0x4 + +#ifdef __cplusplus +} +#endif + +#endif /* _LPAD_H */ |