/*- * SPDX-License-Identifier: BSD-4-Clause * * 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. */ #ifndef _ARM_INCLUDE_PARAM_H_ #define _ARM_INCLUDE_PARAM_H_ /* * Machine dependent constants for StrongARM */ #include #define STACKALIGNBYTES (8 - 1) #define STACKALIGN(p) ((u_int)(p) & ~STACKALIGNBYTES) #define __PCI_REROUTE_INTERRUPT #ifndef MACHINE #define MACHINE "arm" #endif #ifndef MACHINE_ARCH #if __ARM_ARCH >= 7 #define MACHINE_ARCH "armv7" #else #define MACHINE_ARCH "armv6" #endif #endif #ifdef SMP #ifndef MAXCPU #define MAXCPU 4 #endif #else #define MAXCPU 1 #endif #ifndef MAXMEMDOM #define MAXMEMDOM 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). * * armv4 and v5 require alignment to the type's size. armv6 requires 8-byte * alignment for the ldrd/strd instructions, but otherwise follows armv7 rules. * armv7 requires that an 8-byte type be aligned to at least a 4-byte boundary; * access to smaller types can be unaligned, except that the compiler may * optimize access to adjacent uint32_t values into a single load/store-multiple * instruction which requires 4-byte alignment, so we must provide the most- * pessimistic answer possible even on armv7. */ #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 PDR_SHIFT 20 /* log2(NBPDR) */ #define NBPDR (1 << PDR_SHIFT) #define PDRMASK (NBPDR - 1) #define NPDEPG (1 << (32 - PDR_SHIFT)) #define MAXPAGESIZES 2 /* 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) /* * Mach derived conversion macros */ #define trunc_page(x) ((x) & ~PAGE_MASK) #define round_page(x) (((x) + PAGE_MASK) & ~PAGE_MASK) #define trunc_1mpage(x) ((unsigned)(x) & ~PDRMASK) #define round_1mpage(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_ */