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Current File : //sys/arm/include/param.h |
/*- * Copyright (c) 2001 David E. O'Brien * 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. * 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. * * from: @(#)param.h 5.8 (Berkeley) 6/28/91 * $FreeBSD: release/9.1.0/sys/arm/include/param.h 224207 2011-07-19 00:37:24Z attilio $ */ #ifndef _ARM_INCLUDE_PARAM_H_ #define _ARM_INCLUDE_PARAM_H_ /* * Machine dependent constants for StrongARM */ #include <machine/_align.h> #define STACKALIGNBYTES (8 - 1) #define STACKALIGN(p) ((u_int)(p) & ~STACKALIGNBYTES) #define __PCI_REROUTE_INTERRUPT #ifndef MACHINE #define MACHINE "arm" #endif #ifndef MACHINE_ARCH #define MACHINE_ARCH "arm" #endif #define MID_MACHINE MID_ARM6 #if defined(SMP) || defined(KLD_MODULE) #ifndef MAXCPU #define MAXCPU 2 #endif #else #define MAXCPU 1 #endif /* SMP || KLD_MODULE */ #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) ((((unsigned)(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 6 #define CACHE_LINE_SIZE (1 << CACHE_LINE_SHIFT) #define PAGE_SHIFT 12 #define PAGE_SIZE (1 << PAGE_SHIFT) /* Page size */ #define PAGE_MASK (PAGE_SIZE - 1) #define NPTEPG (PAGE_SIZE/(sizeof (pt_entry_t))) #define PDR_SHIFT 20 /* log2(NBPDR) */ #define NBPDR (1 << PDR_SHIFT) #define NPDEPG (1 << (32 - PDR_SHIFT)) #define MAXPAGESIZES 1 /* maximum number of supported page sizes */ #ifndef KSTACK_PAGES #define KSTACK_PAGES 2 #endif /* !KSTACK_PAGES */ #ifndef FPCONTEXTSIZE #define FPCONTEXTSIZE (0x100) #endif #ifndef KSTACK_GUARD_PAGES #define KSTACK_GUARD_PAGES 1 #endif /* !KSTACK_GUARD_PAGES */ #define USPACE_SVC_STACK_TOP KSTACK_PAGES * PAGE_SIZE #define USPACE_SVC_STACK_BOTTOM (USPACE_SVC_STACK_TOP - 0x1000) #define USPACE_UNDEF_STACK_TOP (USPACE_SVC_STACK_BOTTOM - 0x10) #define USPACE_UNDEF_STACK_BOTTOM (FPCONTEXTSIZE + 10) /* * Mach derived conversion macros */ #define trunc_page(x) ((x) & ~PAGE_MASK) #define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK) #define trunc_4mpage(x) ((unsigned)(x) & ~PDRMASK) #define round_4mpage(x) ((((unsigned)(x)) + PDRMASK) & ~PDRMASK) #define atop(x) ((unsigned)(x) >> PAGE_SHIFT) #define ptoa(x) ((unsigned)(x) << PAGE_SHIFT) #define arm32_btop(x) ((unsigned)(x) >> PAGE_SHIFT) #define arm32_ptob(x) ((unsigned)(x) << PAGE_SHIFT) #define pgtok(x) ((x) * (PAGE_SIZE / 1024)) #endif /* !_ARM_INCLUDE_PARAM_H_ */