| cpufunc.h (78903) | cpufunc.h (88088) |
|---|---|
| 1/*- 2 * Copyright (c) 1993 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 16 unchanged lines hidden (view full) --- 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * | 1/*- 2 * Copyright (c) 1993 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 16 unchanged lines hidden (view full) --- 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * |
| 33 * $FreeBSD: head/sys/i386/include/cpufunc.h 78903 2001-06-28 02:08:13Z bsd $ | 33 * $FreeBSD: head/sys/i386/include/cpufunc.h 88088 2001-12-18 00:27:18Z jhb $ |
| 34 */ 35 36/* 37 * Functions to provide access to special i386 instructions. 38 */ 39 40#ifndef _MACHINE_CPUFUNC_H_ 41#define _MACHINE_CPUFUNC_H_ 42 43#include <sys/cdefs.h> | 34 */ 35 36/* 37 * Functions to provide access to special i386 instructions. 38 */ 39 40#ifndef _MACHINE_CPUFUNC_H_ 41#define _MACHINE_CPUFUNC_H_ 42 43#include <sys/cdefs.h> |
| 44#include <machine/psl.h> |
|
| 44 45__BEGIN_DECLS 46#define readb(va) (*(volatile u_int8_t *) (va)) 47#define readw(va) (*(volatile u_int16_t *) (va)) 48#define readl(va) (*(volatile u_int32_t *) (va)) 49 50#define writeb(va, d) (*(volatile u_int8_t *) (va) = (d)) 51#define writew(va, d) (*(volatile u_int16_t *) (va) = (d)) 52#define writel(va, d) (*(volatile u_int32_t *) (va) = (d)) 53 | 45 46__BEGIN_DECLS 47#define readb(va) (*(volatile u_int8_t *) (va)) 48#define readw(va) (*(volatile u_int16_t *) (va)) 49#define readl(va) (*(volatile u_int32_t *) (va)) 50 51#define writeb(va, d) (*(volatile u_int8_t *) (va) = (d)) 52#define writew(va, d) (*(volatile u_int16_t *) (va) = (d)) 53#define writel(va, d) (*(volatile u_int32_t *) (va) = (d)) 54 |
| 55#define CRITICAL_FORK (read_eflags() | PSL_I) 56 |
|
| 54#ifdef __GNUC__ 55 56#ifdef SWTCH_OPTIM_STATS 57extern int tlb_flush_count; /* XXX */ 58#endif 59 60static __inline void 61breakpoint(void) --- 481 unchanged lines hidden (view full) --- 543 544static __inline void 545load_dr7(u_int sel) 546{ 547 __asm __volatile("movl %0,%%dr7" : : "r" (sel)); 548} 549 550static __inline critical_t | 57#ifdef __GNUC__ 58 59#ifdef SWTCH_OPTIM_STATS 60extern int tlb_flush_count; /* XXX */ 61#endif 62 63static __inline void 64breakpoint(void) --- 481 unchanged lines hidden (view full) --- 546 547static __inline void 548load_dr7(u_int sel) 549{ 550 __asm __volatile("movl %0,%%dr7" : : "r" (sel)); 551} 552 553static __inline critical_t |
| 551critical_enter(void) | 554cpu_critical_enter(void) |
| 552{ 553 critical_t eflags; 554 555 eflags = read_eflags(); 556 disable_intr(); 557 return (eflags); 558} 559 560static __inline void | 555{ 556 critical_t eflags; 557 558 eflags = read_eflags(); 559 disable_intr(); 560 return (eflags); 561} 562 563static __inline void |
| 561critical_exit(critical_t eflags) | 564cpu_critical_exit(critical_t eflags) |
| 562{ 563 write_eflags(eflags); 564} 565 566#else /* !__GNUC__ */ 567 568int breakpoint __P((void)); 569u_int bsfl __P((u_int mask)); --- 22 unchanged lines hidden (view full) --- 592u_int read_eflags __P((void)); 593void wbinvd __P((void)); 594void write_eflags __P((u_int ef)); 595void wrmsr __P((u_int msr, u_int64_t newval)); 596u_int rfs __P((void)); 597u_int rgs __P((void)); 598void load_fs __P((u_int sel)); 599void load_gs __P((u_int sel)); | 565{ 566 write_eflags(eflags); 567} 568 569#else /* !__GNUC__ */ 570 571int breakpoint __P((void)); 572u_int bsfl __P((u_int mask)); --- 22 unchanged lines hidden (view full) --- 595u_int read_eflags __P((void)); 596void wbinvd __P((void)); 597void write_eflags __P((u_int ef)); 598void wrmsr __P((u_int msr, u_int64_t newval)); 599u_int rfs __P((void)); 600u_int rgs __P((void)); 601void load_fs __P((u_int sel)); 602void load_gs __P((u_int sel)); |
| 600critical_t critical_enter __P((void)); 601void critical_exit __P((critical_t eflags)); | 603critical_t cpu_critical_enter __P((void)); 604void cpu_critical_exit __P((critical_t eflags)); |
| 602 603#endif /* __GNUC__ */ 604 605void load_cr0 __P((u_int cr0)); 606void load_cr3 __P((u_int cr3)); 607void load_cr4 __P((u_int cr4)); 608void ltr __P((u_short sel)); 609u_int rcr0 __P((void)); 610u_int rcr3 __P((void)); 611u_int rcr4 __P((void)); 612void reset_dbregs __P((void)); 613__END_DECLS 614 615#endif /* !_MACHINE_CPUFUNC_H_ */ | 605 606#endif /* __GNUC__ */ 607 608void load_cr0 __P((u_int cr0)); 609void load_cr3 __P((u_int cr3)); 610void load_cr4 __P((u_int cr4)); 611void ltr __P((u_short sel)); 612u_int rcr0 __P((void)); 613u_int rcr3 __P((void)); 614u_int rcr4 __P((void)); 615void reset_dbregs __P((void)); 616__END_DECLS 617 618#endif /* !_MACHINE_CPUFUNC_H_ */ |