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Diffstat (limited to 'sys/arch/amd64/include/param.h')
| -rw-r--r-- | sys/arch/amd64/include/param.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/sys/arch/amd64/include/param.h b/sys/arch/amd64/include/param.h new file mode 100644 index 00000000000..7e3f512977f --- /dev/null +++ b/sys/arch/amd64/include/param.h @@ -0,0 +1,173 @@ +/* $OpenBSD: param.h,v 1.1 2004/01/28 01:39:39 mickey Exp $ */ + +/*- + * 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. + * + * @(#)param.h 5.8 (Berkeley) 6/28/91 + */ + +#ifdef _KERNEL +#ifdef _LOCORE +#include <machine/psl.h> +#else +#include <machine/cpu.h> +#endif +#endif + +#define _MACHINE amd64 +#define MACHINE "amd64" +#define _MACHINE_ARCH x86_64 +#define MACHINE_ARCH "x86_64" +#define MID_MACHINE MID_X86_64 + +/* + * Round p (pointer or byte index) up to a correctly-aligned value + * for all data types (int, long, ...). The result is u_long and + * must be cast to any desired pointer type. + * + * 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 ALIGNBYTES (sizeof(long) - 1) +#define ALIGN(p) (((u_long)(p) + ALIGNBYTES) &~ALIGNBYTES) +#define ALIGNED_POINTER(p,t) 1 + +#define PGSHIFT 12 /* LOG2(NBPG) */ +#define NBPG (1 << PGSHIFT) /* bytes/page */ +#define PGOFSET (NBPG-1) /* byte offset into page */ + +#define PAGE_SHIFT 12 +#define PAGE_SIZE (1 << PAGE_SHIFT) +#define PAGE_MASK (PAGE_SIZE - 1) + +#define NPTEPG (NBPG/(sizeof (pt_entry_t))) + +#define KERNBASE 0xffffffff80000000 /* start of kernel virtual space */ +#define KERNTEXTOFF (KERNBASE+0x100000) /* start of kernel text */ +#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT) + +#define KERNTEXTOFF_HI 0xffffffff +#define KERNTEXTOFF_LO 0x80100000 + +#define KERNBASE_HI 0xffffffff +#define KERNBASE_LO 0x80000000 + +#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ +#define DEV_BSIZE (1 << DEV_BSHIFT) +#define BLKDEV_IOSIZE 2048 +#ifndef MAXPHYS +#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */ +#endif + +#define SSIZE 1 /* initial stack size/NBPG */ +#define SINCR 1 /* increment of stack/NBPG */ +#define UPAGES 5 /* pages of u-area */ +#define USPACE (UPAGES * NBPG) /* total size of u-area */ + +#ifndef MSGBUFSIZE +#define MSGBUFSIZE 4*NBPG /* default message buffer size */ +#endif + +/* + * Constants related to network buffer management. + * MCLBYTES must be no larger than NBPG (the software page size), and, + * on machines that exchange pages of input or output buffers with mbuf + * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple + * of the hardware page size. + */ +#define MSIZE 256 /* size of an mbuf */ +#define MCLSHIFT 11 /* convert bytes to m_buf clusters */ +#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */ +#define MCLOFSET (MCLBYTES - 1) /* offset within a m_buf cluster */ + +#ifndef NMBCLUSTERS +#define NMBCLUSTERS 2048 /* map size, max cluster allocation */ +#endif + +/* + * Minimum and maximum sizes of the kernel malloc arena in PAGE_SIZE-sized + * logical pages. + */ +#define NKMEMPAGES_MIN_DEFAULT ((8 * 1024 * 1024) >> PAGE_SHIFT) +#define NKMEMPAGES_MAX_DEFAULT ((128 * 1024 * 1024) >> PAGE_SHIFT) + +/* pages ("clicks") to disk blocks */ +#define ctod(x) ((x) << (PGSHIFT - DEV_BSHIFT)) +#define dtoc(x) ((x) >> (PGSHIFT - DEV_BSHIFT)) + +/* bytes to pages */ +#define ctob(x) ((x) << PGSHIFT) +#define btoc(x) (((x) + PGOFSET) >> PGSHIFT) + +/* bytes to disk blocks */ +#define dbtob(x) ((x) << DEV_BSHIFT) +#define btodb(x) ((x) >> DEV_BSHIFT) + +/* + * Map a ``block device block'' to a file system block. + * This should be device dependent, and should use the bsize + * field from the disk label. + * For now though just use DEV_BSIZE. + */ +#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE / DEV_BSIZE)) + +/* + * XXXfvdl the PD* stuff is different from i386. + */ +/* + * Mach derived conversion macros + */ +#define x86_round_pdr(x) \ + ((((unsigned long)(x)) + (NBPD_L2 - 1)) & ~(NBPD_L2 - 1)) +#define x86_trunc_pdr(x) ((unsigned long)(x) & ~(NBPD_L2 - 1)) +#define x86_btod(x) ((unsigned long)(x) >> L2_SHIFT) +#define x86_dtob(x) ((unsigned long)(x) << L2_SHIFT) +#define x86_round_page(x) ((((unsigned long)(x)) + PGOFSET) & ~PGOFSET) +#define x86_trunc_page(x) ((unsigned long)(x) & ~PGOFSET) +#define x86_btop(x) ((unsigned long)(x) >> PGSHIFT) +#define x86_ptob(x) ((unsigned long)(x) << PGSHIFT) + +#define btop(x) x86_btop(x) +#define ptob(x) x86_ptob(x) +#define round_pdr(x) x86_round_pdr(x) + +/* XXX - oh, the horror.. Just for now. */ +#define KERNEL_PROC_LOCK(p) +#define KERNEL_PROC_UNLOCK(p) +#define KERNEL_LOCK(i) +#define KERNEL_UNLOCK() |