Putting param.h back into hpcarm's include
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reinoud
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/* $NetBSD: param.h,v 1.2 2001/02/23 21:23:52 reinoud Exp $ */
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/* $NetBSD: param.h,v 1.3 2001/02/26 00:07:54 reinoud Exp $ */
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#include <arm/arm32/param.h>
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/*
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* Copyright (c) 1994,1995 Mark Brinicombe.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the RiscBSD team.
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* 4. The name "RiscBSD" nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY RISCBSD ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL RISCBSD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _ARM32_PARAM_H_
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#define _ARM32_PARAM_H_
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#ifdef _KERNEL
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# include <machine/cpu.h>
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#endif
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/*
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* Machine dependent constants for ARM6+ processors
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*/
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#define _MACHINE hpcarm
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#define MACHINE "hpcarm"
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#define _MACHINE_ARCH arm
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#define MACHINE_ARCH "arm"
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#define MID_MACHINE MID_ARM6
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/*
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* Round p (pointer or byte index) up to a correctly-aligned value
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* for all data types (int, long, ...). The result is u_int and
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* must be cast to any desired pointer type.
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*
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* ALIGNED_POINTER is a boolean macro that checks whether an address
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* is valid to fetch data elements of type t from on this architecture.
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* This does not reflect the optimal alignment, just the possibility
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* (within reasonable limits).
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*
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*/
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#define ALIGNBYTES (sizeof(int) - 1)
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#define ALIGN(p) (((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)
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#define ALIGNED_POINTER(p,t) ((((u_long)(p)) & (sizeof(t)-1)) == 0)
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#define PGSHIFT 12 /* LOG2(NBPG) */
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#define NBPG (1 << PGSHIFT) /* bytes/page */
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#define PGOFSET (NBPG-1) /* byte offset into page */
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#define NPTEPG (NBPG/(sizeof (pt_entry_t)))
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#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
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#define DEV_BSIZE (1 << DEV_BSHIFT)
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#define BLKDEV_IOSIZE 2048
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#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */
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#define SSIZE 1 /* initial stack size/NBPG */
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#define SINCR 1 /* increment of stack/NBPG */
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#define UPAGES 2 /* pages of u-area */
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#define USPACE (UPAGES * NBPG) /* total size of u-area */
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#ifndef MSGBUFSIZE
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#define MSGBUFSIZE NBPG /* default message buffer size */
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#endif
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/*
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* Constants related to network buffer management.
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* MCLBYTES must be no larger than NBPG (the software page size), and,
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* on machines that exchange pages of input or output buffers with mbuf
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* clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
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* of the hardware page size.
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*/
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#define MSIZE 256 /* size of an mbuf */
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#define MCLSHIFT 11 /* convert bytes to m_buf clusters */
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#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
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#define MCLOFSET (MCLBYTES - 1) /* offset within a m_buf cluster */
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#ifndef NMBCLUSTERS
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#if defined(_KERNEL) && !defined(_LKM)
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#include "opt_gateway.h"
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#endif /* _KERNEL && ! _LKM */
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#ifdef GATEWAY
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#define NMBCLUSTERS 512 /* map size, max cluster allocation */
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#else
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#define NMBCLUSTERS 256 /* map size, max cluster allocation */
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#endif
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#endif
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/*
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* Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized
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* logical pages.
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*/
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#define NKMEMPAGES_MIN_DEFAULT ((6 * 1024 * 1024) >> PAGE_SHIFT)
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#define NKMEMPAGES_MAX_DEFAULT ((7 * 1024 * 1024) >> PAGE_SHIFT)
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/* pages ("clicks") (4096 bytes) to disk blocks */
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#define ctod(x) ((x) << (PGSHIFT - DEV_BSHIFT))
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#define dtoc(x) ((x) >> (PGSHIFT - DEV_BSHIFT))
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/*#define dtob(x) ((x) << DEV_BSHIFT)*/
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#define ctob(x) ((x) << PGSHIFT)
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/* bytes to pages */
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#define btoc(x) (((x) + PGOFSET) >> PGSHIFT)
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#define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \
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((bytes) >> DEV_BSHIFT)
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#define dbtob(db) /* calculates (db * DEV_BSIZE) */ \
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((db) << DEV_BSHIFT)
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/*
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* Map a ``block device block'' to a file system block.
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* This should be device dependent, and should use the bsize
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* field from the disk label.
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* For now though just use DEV_BSIZE.
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*/
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#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE / DEV_BSIZE))
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/* Constants used to divide the USPACE area */
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/*
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* The USPACE area contains :
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* 1. the user structure for the process
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* 2. the fp context for FP emulation
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* 3. the kernel (svc) stack
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* 4. the undefined instruction stack
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*
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* The layout of the area looks like this
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*
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* | user area | FP context | undefined stack | kernel stack |
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*
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* The size of the user area is known.
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* The size of the FP context is variable depending of the FP emulator
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* in use and whether there is hardware FP support. However we can put
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* an upper limit on it.
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* The undefined stack needs to be at least 512 bytes. This is a requirement
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* if the FP emulators
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* The kernel stack should be at least 4K is size.
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*
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* The stack top addresses are used to set the stack pointers. The stack bottom
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* addresses at the addresses monitored by the diagnostic code for stack overflows
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*
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*/
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#define FPCONTEXTSIZE (0x100)
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#define USPACE_SVC_STACK_TOP (USPACE)
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#define USPACE_SVC_STACK_BOTTOM (USPACE_SVC_STACK_TOP - 0x1000)
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#define USPACE_UNDEF_STACK_TOP (USPACE_SVC_STACK_BOTTOM - 0x10)
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#define USPACE_UNDEF_STACK_BOTTOM (sizeof(struct user) + FPCONTEXTSIZE + 10)
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#define arm_byte_to_page(x) ((x) >> PGSHIFT)
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#define arm_page_to_byte(x) ((x) << PGSHIFT)
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#ifdef _KERNEL
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#ifndef _LOCORE
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void delay __P((unsigned));
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#define DELAY(x) delay(x)
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#endif
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#endif
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#endif /* _ARM_PARAM_H_ */
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