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/*- * Copyright (c) 2002 David E. O'Brien. All rights reserved. * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * the Systems Programming Group of the University of Utah Computer * Science Department and Ralph Campbell. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 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. * * @(#)param.h 8.1 (Berkeley) 6/10/93 * $FreeBSD: release/9.1.0/sys/amd64/include/param.h 224217 2011-07-19 13:00:30Z attilio $ */ #ifndef _AMD64_INCLUDE_PARAM_H_ #define _AMD64_INCLUDE_PARAM_H_ #include <machine/_align.h> /* * Machine dependent constants for AMD64. */ #define __HAVE_ACPI #define __PCI_REROUTE_INTERRUPT #ifndef MACHINE #define MACHINE "amd64" #endif #ifndef MACHINE_ARCH #define MACHINE_ARCH "amd64" #endif #ifndef MACHINE_ARCH32 #define MACHINE_ARCH32 "i386" #endif #if defined(SMP) || defined(KLD_MODULE) #ifndef MAXCPU #define MAXCPU 64 #endif #else #define MAXCPU 1 #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 /* * CACHE_LINE_SIZE is the compile-time maximum cache line size for an * architecture. It should be used with appropriate caution. */ #define CACHE_LINE_SHIFT 7 #define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) /* Size of the level 1 page table units */ #define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) #define NPTEPGSHIFT 9 /* LOG2(NPTEPG) */ #define PAGE_SHIFT 12 /* LOG2(PAGE_SIZE) */ #define PAGE_SIZE (1<<PAGE_SHIFT) /* bytes/page */ #define PAGE_MASK (PAGE_SIZE-1) /* Size of the level 2 page directory units */ #define NPDEPG (PAGE_SIZE/(sizeof (pd_entry_t))) #define NPDEPGSHIFT 9 /* LOG2(NPDEPG) */ #define PDRSHIFT 21 /* LOG2(NBPDR) */ #define NBPDR (1<<PDRSHIFT) /* bytes/page dir */ #define PDRMASK (NBPDR-1) /* Size of the level 3 page directory pointer table units */ #define NPDPEPG (PAGE_SIZE/(sizeof (pdp_entry_t))) #define NPDPEPGSHIFT 9 /* LOG2(NPDPEPG) */ #define PDPSHIFT 30 /* LOG2(NBPDP) */ #define NBPDP (1<<PDPSHIFT) /* bytes/page dir ptr table */ #define PDPMASK (NBPDP-1) /* Size of the level 4 page-map level-4 table units */ #define NPML4EPG (PAGE_SIZE/(sizeof (pml4_entry_t))) #define NPML4EPGSHIFT 9 /* LOG2(NPML4EPG) */ #define PML4SHIFT 39 /* LOG2(NBPML4) */ #define NBPML4 (1UL<<PML4SHIFT)/* bytes/page map lev4 table */ #define PML4MASK (NBPML4-1) #define MAXPAGESIZES 3 /* maximum number of supported page sizes */ #define IOPAGES 2 /* pages of i/o permission bitmap */ #ifndef KSTACK_PAGES #define KSTACK_PAGES 4 /* pages of kstack (with pcb) */ #endif #define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ /* * Ceiling on amount of swblock kva space, can be changed via * the kern.maxswzone /boot/loader.conf variable. */ #ifndef VM_SWZONE_SIZE_MAX #define VM_SWZONE_SIZE_MAX (32 * 1024 * 1024) #endif /* * Mach derived conversion macros */ #define round_page(x) ((((unsigned long)(x)) + PAGE_MASK) & ~(PAGE_MASK)) #define trunc_page(x) ((unsigned long)(x) & ~(PAGE_MASK)) #define trunc_2mpage(x) ((unsigned long)(x) & ~PDRMASK) #define round_2mpage(x) ((((unsigned long)(x)) + PDRMASK) & ~PDRMASK) #define trunc_1gpage(x) ((unsigned long)(x) & ~PDPMASK) #define atop(x) ((unsigned long)(x) >> PAGE_SHIFT) #define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) #define amd64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) #define amd64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) #define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024)) #endif /* !_AMD64_INCLUDE_PARAM_H_ */