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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
* $FreeBSD$
*/
#ifndef _SUN4V_INCLUDE_PARAM_H_
#define _SUN4V_INCLUDE_PARAM_H_
/*
* Machine dependent constants for sparc64.
*/
#include <machine/_align.h>
#ifndef MACHINE
#define MACHINE "sun4v"
#endif
#ifndef MACHINE_ARCH
#define MACHINE_ARCH "sparc64"
#endif
#define MID_MACHINE MID_SPARC64
#if defined(SMP) || defined(KLD_MODULE)
#define MAXCPU 32
#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_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
*/
#ifndef LOCORE
#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 /* LOCORE */
#endif /* !_SUN4V_INCLUDE_PARAM_H_ */
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