From: Arun Thomas Date: Tue, 23 Nov 2010 11:05:09 +0000 (+0000) Subject: Add machine/param.h X-Git-Tag: v3.2.0~735 X-Git-Url: http://zhaoyanbai.com/repos/Bv9ARM.ch04.html?a=commitdiff_plain;h=6b5c8751da19f31e83452185f03e5cf871211866;p=minix.git Add machine/param.h --- diff --git a/include/arch/i386/Makefile b/include/arch/i386/Makefile index dfcce3570..c6ca87dfa 100644 --- a/include/arch/i386/Makefile +++ b/include/arch/i386/Makefile @@ -3,6 +3,6 @@ INCSDIR= /usr/include/i386 INCS= archtypes.h bios.h cmos.h cpu.h diskparm.h fpu.h int86.h \ interrupt.h mcontext.h memory.h partition.h \ pci.h pci_amd.h pci_intel.h pci_sis.h pci_via.h \ - ports.h stackframe.h vm.h asm.h + ports.h stackframe.h vm.h asm.h _align.h param.h .include diff --git a/include/arch/i386/_align.h b/include/arch/i386/_align.h new file mode 100644 index 000000000..20df0b8f8 --- /dev/null +++ b/include/arch/i386/_align.h @@ -0,0 +1,47 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: @(#)param.h 5.8 (Berkeley) 6/28/91 + * $FreeBSD$ + */ + +#ifndef _I386_INCLUDE__ALIGN_H_ +#define _I386_INCLUDE__ALIGN_H_ + +/* + * Round p (pointer or byte index) up to a correctly-aligned value + * for all data types (int, long, ...). The result is unsigned int + * and must be cast to any desired pointer type. + */ +#define _ALIGNBYTES (sizeof(int) - 1) +#define _ALIGN(p) (((unsigned)(p) + _ALIGNBYTES) & ~_ALIGNBYTES) + +#endif /* !_I386_INCLUDE__ALIGN_H_ */ diff --git a/include/arch/i386/param.h b/include/arch/i386/param.h new file mode 100644 index 000000000..fbcaeb753 --- /dev/null +++ b/include/arch/i386/param.h @@ -0,0 +1,110 @@ +/*- + * Copyright (c) 1990 The Regents of the University of California. + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * William Jolitz. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * from: @(#)param.h 5.8 (Berkeley) 6/28/91 + * $FreeBSD$ + */ + +#include + +#ifndef _I386_INCLUDE_PARAM_H_ +#define _I386_INCLUDE_PARAM_H_ + +/* + * Machine dependent constants for Intel 386. + */ + +/* + * Round p (pointer or byte index) up to a correctly-aligned value + * for all data types (int, long, ...). The result is unsigned int + * and must be cast to any desired pointer type. + */ +#ifndef _ALIGNBYTES +#define _ALIGNBYTES (sizeof(int) - 1) +#endif +#ifndef _ALIGN +#define _ALIGN(p) (((unsigned)(p) + _ALIGNBYTES) & ~_ALIGNBYTES) +#endif + +#define ALIGNBYTES _ALIGNBYTES +#define ALIGN(p) _ALIGN(p) +/* + * ALIGNED_POINTER is a boolean macro that checks whether an address + * is valid to fetch data elements of type t from on this architecture. + * This does not reflect the optimal alignment, just the possibility + * (within reasonable limits). + */ +#define ALIGNED_POINTER(p, t) 1 + +#define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */ +#define PAGE_SIZE (1<> PAGE_SHIFT) +#define ptoa(x) ((x) << PAGE_SHIFT) + +#define i386_btop(x) ((x) >> PAGE_SHIFT) +#define i386_ptob(x) ((x) << PAGE_SHIFT) + +#define pgtok(x) ((x) * (PAGE_SIZE / 1024)) + +#define trunc_page_ps(va, ps) ((va) & ~(ps - 1)) +#define round_page_ps(va, ps) (((va) + (ps - 1)) & ~(ps - 1)) +#define aligned(a, t) (trunc_page_ps((u_long)(a), sizeof(t)) == (u_long)(a)) + +#endif /* !_I386_INCLUDE_PARAM_H_ */ diff --git a/include/sys/param.h b/include/sys/param.h index 2e14ec924..c820d190c 100644 --- a/include/sys/param.h +++ b/include/sys/param.h @@ -12,6 +12,8 @@ sys/param.h #define NGROUPS 8 /* max number of supplementary groups */ #define MAXPATHLEN __MINIX_PATH_MAX +#include + /* Macros for min/max. */ #define MIN(a,b) ((/*CONSTCOND*/(a)<(b))?(a):(b)) #define MAX(a,b) ((/*CONSTCOND*/(a)>(b))?(a):(b))