1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_FPU_FPUSYSTM_H 28 #define _SYS_FPU_FPUSYSTM_H 29 30 /* 31 * ISA-dependent FPU interfaces 32 */ 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #ifdef _KERNEL 39 40 struct _fpu; 41 struct regs; 42 43 #if !defined(DEBUG) && !defined(NEED_FPU_EXISTS) 44 #define fpu_exists 1 45 #else 46 extern int fpu_exists; 47 #endif 48 49 extern int fpu_version; 50 extern int fpdispr; 51 52 extern void fpu_probe(void); 53 extern void fp_disable(void); 54 extern void fp_disabled(struct regs *); 55 extern void fp_clearregs(kfpu_t *); 56 extern void fp_enable(void); 57 extern void fp_fksave(kfpu_t *); 58 extern void fp_runq(struct regs *); 59 extern void fp_load(kfpu_t *); 60 extern void fp_save(kfpu_t *); 61 extern void fp_restore(kfpu_t *); 62 extern void run_fpq(klwp_t *, fpregset_t *); 63 extern void syncfpu(void); 64 extern void _fp_read_pfsr(uint64_t *fsr); 65 extern void _fp_write_pfsr(uint64_t *); 66 extern void _fp_read_pfreg(uint32_t *, uint_t); 67 extern void _fp_write_pfreg(uint32_t *, uint_t); 68 extern void fp_free(kfpu_t *, int); 69 extern void fp_fork(klwp_t *, klwp_t *); 70 extern void fp_v8_load(kfpu_t *); 71 extern void fp_v8p_load(kfpu_t *); 72 extern void fp_v8_fksave(kfpu_t *); 73 extern void fp_v8p_fksave(kfpu_t *); 74 extern uint32_t _fp_read_fprs(void); 75 extern void _fp_write_fprs(uint32_t); 76 extern void save_gsr(kfpu_t *); 77 extern void restore_gsr(kfpu_t *); 78 extern uint64_t get_gsr(kfpu_t *); 79 extern void set_gsr(uint64_t, kfpu_t *); 80 extern uint64_t _fp_read_pgsr(kfpu_t *); 81 extern void _fp_write_pgsr(uint64_t, kfpu_t *); 82 extern void _fp_read_pdreg(uint64_t *, uint_t); 83 extern void _fp_write_pdreg(uint64_t *, uint_t); 84 85 #endif /* _KERNEL */ 86 87 #ifdef __cplusplus 88 } 89 #endif 90 91 #endif /* _SYS_FPU_FPUSYSTM_H */ 92