| cpufunc.h (69006) | cpufunc.h (74897) |
|---|---|
| 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/amd64/include/cpufunc.h 69006 2000-11-21 20:16:49Z markm $ | 33 * $FreeBSD: head/sys/amd64/include/cpufunc.h 74897 2001-03-28 02:31:54Z 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_ --- 43 unchanged lines hidden (view full) --- 85} 86 87static __inline void 88enable_intr(void) 89{ 90 __asm __volatile("sti"); 91} 92 | 34 */ 35 36/* 37 * Functions to provide access to special i386 instructions. 38 */ 39 40#ifndef _MACHINE_CPUFUNC_H_ 41#define _MACHINE_CPUFUNC_H_ --- 43 unchanged lines hidden (view full) --- 85} 86 87static __inline void 88enable_intr(void) 89{ 90 __asm __volatile("sti"); 91} 92 |
| 93static __inline u_int 94save_intr(void) 95{ 96 u_int ef; 97 98 __asm __volatile("pushfl; popl %0" : "=r" (ef)); 99 return (ef); 100} 101 102static __inline void 103restore_intr(u_int ef) 104{ 105 __asm __volatile("pushl %0; popfl" : : "r" (ef) : "memory" ); 106} 107 | |
| 108#define HAVE_INLINE_FFS 109 110static __inline int 111ffs(int mask) 112{ 113 /* 114 * Note that gcc-2's builtin ffs would be used if we didn't declare 115 * this inline or turn off the builtin. The builtin is faster but --- 374 unchanged lines hidden (view full) --- 490static __inline u_int 491rdr7(void) 492{ 493 u_int data; 494 __asm __volatile("movl %%dr7,%0" : "=r" (data)); 495 return (data); 496} 497 | 93#define HAVE_INLINE_FFS 94 95static __inline int 96ffs(int mask) 97{ 98 /* 99 * Note that gcc-2's builtin ffs would be used if we didn't declare 100 * this inline or turn off the builtin. The builtin is faster but --- 374 unchanged lines hidden (view full) --- 475static __inline u_int 476rdr7(void) 477{ 478 u_int data; 479 __asm __volatile("movl %%dr7,%0" : "=r" (data)); 480 return (data); 481} 482 |
| 483static __inline critical_t 484critical_enter(void) 485{ 486 critical_t eflags; 487 488 eflags = read_eflags(); 489 disable_intr(); 490 return (eflags); 491} 492 493static __inline void 494critical_exit(critical_t eflags) 495{ 496 write_eflags(eflags); 497} 498 |
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| 498#else /* !__GNUC__ */ 499 500int breakpoint __P((void)); 501u_int bsfl __P((u_int mask)); 502u_int bsrl __P((u_int mask)); 503void disable_intr __P((void)); 504void enable_intr __P((void)); 505u_char inb __P((u_int port)); --- 18 unchanged lines hidden (view full) --- 524u_int read_eflags __P((void)); 525void wbinvd __P((void)); 526void write_eflags __P((u_int ef)); 527void wrmsr __P((u_int msr, u_int64_t newval)); 528u_int rfs __P((void)); 529u_int rgs __P((void)); 530void load_fs __P((u_int sel)); 531void load_gs __P((u_int sel)); | 499#else /* !__GNUC__ */ 500 501int breakpoint __P((void)); 502u_int bsfl __P((u_int mask)); 503u_int bsrl __P((u_int mask)); 504void disable_intr __P((void)); 505void enable_intr __P((void)); 506u_char inb __P((u_int port)); --- 18 unchanged lines hidden (view full) --- 525u_int read_eflags __P((void)); 526void wbinvd __P((void)); 527void write_eflags __P((u_int ef)); 528void wrmsr __P((u_int msr, u_int64_t newval)); 529u_int rfs __P((void)); 530u_int rgs __P((void)); 531void load_fs __P((u_int sel)); 532void load_gs __P((u_int sel)); |
| 533critical_t critical_enter __P((void)); 534void critical_exit __P((critical_t eflags)); |
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| 532 533#endif /* __GNUC__ */ 534 535void load_cr0 __P((u_int cr0)); 536void load_cr3 __P((u_int cr3)); 537void load_cr4 __P((u_int cr4)); 538void ltr __P((u_short sel)); 539u_int rcr0 __P((void)); 540u_int rcr3 __P((void)); 541u_int rcr4 __P((void)); 542void load_dr6 __P((u_int dr6)); 543void reset_dbregs __P((void)); 544 545#endif /* !_MACHINE_CPUFUNC_H_ */ | 535 536#endif /* __GNUC__ */ 537 538void load_cr0 __P((u_int cr0)); 539void load_cr3 __P((u_int cr3)); 540void load_cr4 __P((u_int cr4)); 541void ltr __P((u_short sel)); 542u_int rcr0 __P((void)); 543u_int rcr3 __P((void)); 544u_int rcr4 __P((void)); 545void load_dr6 __P((u_int dr6)); 546void reset_dbregs __P((void)); 547 548#endif /* !_MACHINE_CPUFUNC_H_ */ |