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/*- * 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. * * 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: release/9.1.0/sys/sparc64/include/param.h 224232 2011-07-20 18:51:18Z marius $ */ #ifndef _SPARC64_INCLUDE_PARAM_H_ #define _SPARC64_INCLUDE_PARAM_H_ /* * Machine dependent constants for sparc64. */ #include <machine/_align.h> #define __PCI_BAR_ZERO_VALID #ifndef MACHINE #define MACHINE "sparc64" #endif #ifndef MACHINE_ARCH #define MACHINE_ARCH "sparc64" #endif #define MID_MACHINE MID_SPARC64 #if defined(SMP) || defined(KLD_MODULE) #ifndef MAXCPU #define MAXCPU 64 #endif #else #define MAXCPU 1 #endif /* SMP || KLD_MODULE */ #define INT_SHIFT 2 #define PTR_SHIFT 3 #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) ((((u_long)(p)) & (sizeof (t) - 1)) == 0) /* * 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) #define PAGE_SHIFT_8K 13 #define PAGE_SIZE_8K (1L<<PAGE_SHIFT_8K) #define PAGE_MASK_8K (PAGE_SIZE_8K-1) #define PAGE_SHIFT_64K 16 #define PAGE_SIZE_64K (1L<<PAGE_SHIFT_64K) #define PAGE_MASK_64K (PAGE_SIZE_64K-1) #define PAGE_SHIFT_512K 19 #define PAGE_SIZE_512K (1L<<PAGE_SHIFT_512K) #define PAGE_MASK_512K (PAGE_SIZE_512K-1) #define PAGE_SHIFT_4M 22 #define PAGE_SIZE_4M (1L<<PAGE_SHIFT_4M) #define PAGE_MASK_4M (PAGE_SIZE_4M-1) #define PAGE_SHIFT_32M 25 #define PAGE_SIZE_32M (1L<<PAGE_SHIFT_32M) #define PAGE_MASK_32M (PAGE_SIZE_32M-1) #define PAGE_SHIFT_256M 28 #define PAGE_SIZE_256M (1L<<PAGE_SHIFT_256M) #define PAGE_MASK_256M (PAGE_SIZE_256M-1) #define PAGE_SHIFT_MIN PAGE_SHIFT_8K #define PAGE_SIZE_MIN PAGE_SIZE_8K #define PAGE_MASK_MIN PAGE_MASK_8K #define PAGE_SHIFT PAGE_SHIFT_8K /* LOG2(PAGE_SIZE) */ #define PAGE_SIZE PAGE_SIZE_8K /* bytes/page */ #define PAGE_MASK PAGE_MASK_8K #define PAGE_SHIFT_MAX PAGE_SHIFT_4M #define PAGE_SIZE_MAX PAGE_SIZE_4M #define PAGE_MASK_MAX PAGE_MASK_4M #define MAXPAGESIZES 1 /* maximum number of supported page sizes */ #ifndef KSTACK_PAGES #define KSTACK_PAGES 4 /* pages of kernel stack (with pcb) */ #endif #define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */ #define PCPU_PAGES 1 /* * Ceiling on size of buffer cache (really only effects write queueing, * the VM page cache is not effected), can be changed via * the kern.maxbcache /boot/loader.conf variable. */ #ifndef VM_BCACHE_SIZE_MAX #define VM_BCACHE_SIZE_MAX (400 * 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 atop(x) ((unsigned long)(x) >> PAGE_SHIFT) #define ptoa(x) ((unsigned long)(x) << PAGE_SHIFT) #define sparc64_btop(x) ((unsigned long)(x) >> PAGE_SHIFT) #define sparc64_ptob(x) ((unsigned long)(x) << PAGE_SHIFT) #define pgtok(x) ((unsigned long)(x) * (PAGE_SIZE / 1024)) #endif /* !_SPARC64_INCLUDE_PARAM_H_ */