xref: /freebsd-10.1-release/sys/contrib/ia64/libuwx/src/uwx_scoreboard.h

/*
 * Copyright (c) 2002,2003 Hewlett-Packard Company
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

#define NSB_SPECIAL	9
#define NSB_GR		4
#define NSB_BR		5
#define NSB_FR		20

#define SBREG_RP	0
#define SBREG_PSP	1
#define SBREG_PFS	2
#define SBREG_PREDS	3
#define SBREG_UNAT	4
#define SBREG_PRIUNAT	5
#define SBREG_RNAT	6
#define SBREG_LC	7
#define SBREG_FPSR	8
#define SBREG_GR	(0 + NSB_SPECIAL)
#define SBREG_BR	(SBREG_GR + NSB_GR)
#define SBREG_FR	(SBREG_BR + NSB_BR)

#define NSBREG_NOFR	(NSB_SPECIAL + NSB_GR + NSB_BR)
#define NSBREG		(NSB_SPECIAL + NSB_GR + NSB_BR + NSB_FR)

struct uwx_scoreboard {
    struct uwx_scoreboard *nextused;
    struct uwx_scoreboard *nextfree;
    struct uwx_scoreboard *nextstack;
    struct uwx_scoreboard *nextlabel;
    uint64_t rstate[NSBREG];
    int label;
    int id;
};

extern struct uwx_scoreboard *uwx_alloc_scoreboard(struct uwx_env *env);

extern struct uwx_scoreboard *uwx_init_scoreboards(struct uwx_env *env);

extern struct uwx_scoreboard *uwx_new_scoreboard(
    struct uwx_env *env,
    struct uwx_scoreboard *prevsb);

extern struct uwx_scoreboard *uwx_pop_scoreboards(
    struct uwx_env *env,
    struct uwx_scoreboard *sb,
    int ecount);

extern int uwx_label_scoreboard(
    struct uwx_env *env,
    struct uwx_scoreboard *sb,
    int label);

extern int uwx_copy_scoreboard(
    struct uwx_env *env,
    struct uwx_scoreboard *sb,
    int label);

extern void uwx_free_scoreboards(struct uwx_env *env);