9b4c0e34d2
x86-64. Since there's no hardware available yet, this port is only known to run on the Simics simulator for at the moment, and as such uses the PC devices that it simulates for now. It will be developed more (and cleaned up) as the hardware becomes available.
146 lines
4.4 KiB
C
146 lines
4.4 KiB
C
/* $NetBSD: param.h,v 1.1 2001/06/19 00:20:11 fvdl Exp $ */
|
|
|
|
#ifdef _KERNEL
|
|
#ifdef _LOCORE
|
|
#include <machine/psl.h>
|
|
#else
|
|
#include <machine/cpu.h>
|
|
#endif
|
|
#endif
|
|
|
|
#define _MACHINE x86_64
|
|
#define MACHINE "x86_64"
|
|
#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_int 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 ALIGNBYTES32 (sizeof(int) - 1)
|
|
#define ALIGN32(p) (((u_long)(p) + ALIGNBYTES32) &~ALIGNBYTES32)
|
|
|
|
#define PGSHIFT 12 /* LOG2(NBPG) */
|
|
#define NBPG (1 << PGSHIFT) /* bytes/page */
|
|
#define PGOFSET (NBPG-1) /* byte offset into page */
|
|
#define NPTEPG (NBPG/(sizeof (pt_entry_t)))
|
|
|
|
/*
|
|
* XXXfvdl change this (after bootstrap) to take # of bits from
|
|
* config info into account.
|
|
*/
|
|
#define KERNBASE 0xffff800000000000 /* start of kernel virtual space */
|
|
#define KERNTEXTOFF 0xffff800000100000 /* start of kernel text */
|
|
#define BTOPKERNBASE ((u_long)KERNBASE >> PGSHIFT)
|
|
|
|
#define KERNTEXTOFF_HI 0xffff8000
|
|
#define KERNTEXTOFF_LO 0x00100000
|
|
|
|
#define KERNBASE_HI 0xffff8000
|
|
#define KERNBASE_LO 0x00000000
|
|
|
|
#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 4 /* 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 */
|
|
|
|
#ifndef MCLSHIFT
|
|
# define MCLSHIFT 11 /* convert bytes to m_buf clusters */
|
|
#endif /* MCLSHIFT */
|
|
|
|
#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
|
|
#define MCLOFSET (MCLBYTES - 1) /* offset within a m_buf cluster */
|
|
|
|
#ifndef NMBCLUSTERS
|
|
|
|
#if defined(_KERNEL) && !defined(_LKM)
|
|
#include "opt_gateway.h"
|
|
#endif /* _KERNEL && ! _LKM */
|
|
|
|
#ifdef GATEWAY
|
|
#define NMBCLUSTERS 4096 /* map size, max cluster allocation */
|
|
#else
|
|
#define NMBCLUSTERS 2048 /* map size, max cluster allocation */
|
|
#endif
|
|
#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_64_round_pdr(x) \
|
|
((((unsigned long)(x)) + (NBPD_L2 - 1)) & ~(NBPD_L2 - 1))
|
|
#define x86_64_trunc_pdr(x) ((unsigned long)(x) & ~(NBPD_L2 - 1))
|
|
#define x86_64_btod(x) ((unsigned long)(x) >> L2_SHIFT)
|
|
#define x86_64_dtob(x) ((unsigned long)(x) << L2_SHIFT)
|
|
#define x86_64_round_page(x) ((((unsigned long)(x)) + PGOFSET) & ~PGOFSET)
|
|
#define x86_64_trunc_page(x) ((unsigned long)(x) & ~PGOFSET)
|
|
#define x86_64_btop(x) ((unsigned long)(x) >> PGSHIFT)
|
|
#define x86_64_ptob(x) ((unsigned long)(x) << PGSHIFT)
|
|
|
|
#define btop(x) x86_64_btop(x)
|
|
#define ptob(x) x86_64_ptob(x)
|
|
#define x86_trunc_page(x) x86_64_trunc_page(x)
|
|
#define round_pdr(x) x86_64_round_pdr(x)
|