2 * Copyright (c) 1998 Doug Rabson
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #ifndef _MACHINE_CPUFUNC_H_
30 #define _MACHINE_CPUFUNC_H_
34 #include <sys/types.h>
35 #include <machine/ia64_cpu.h>
36 #include <machine/vmparam.h>
39 #error this file needs sys/cdefs.h as a prerequisite
44 #define IA64_FIXED_BREAK 0x84B5D
51 __asm __volatile("break.m %0" :: "i"(IA64_FIXED_BREAK));
54 #define HAVE_INLINE_FFS
55 #define ffs(x) __builtin_ffs(x)
59 ia64_disable_intr(void)
61 __asm __volatile ("rsm psr.i");
65 ia64_enable_intr(void)
67 __asm __volatile ("ssm psr.i;; srlz.d");
70 static __inline register_t
75 __asm __volatile ("mov %0=psr;;" : "=r"(psr));
77 return ((psr & IA64_PSR_I) ? 1 : 0);
81 intr_restore(register_t ie)
87 #endif /* __GNUCLIKE_ASM */
91 #endif /* !_MACHINE_CPUFUNC_H_ */