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📄 _align.h(87 B)
📄 _bus.h(1.82 KB)
📄 _inttypes.h(90 B)
📄 _limits.h(88 B)
📄 _stdint.h(88 B)
📄 _types.h(87 B)
📄 acpica_machdep.h(95 B)
📄 apm_bios.h(89 B)
📄 apm_segments.h(1.16 KB)
📄 asm.h(4.01 KB)
📄 asmacros.h(8.5 KB)
📄 atomic.h(27.13 KB)
📄 bootinfo.h(4.51 KB)
📄 bus.h(84 B)
📄 bus_dma.h(1.51 KB)
📄 clock.h(853 B)
📄 counter.h(4.78 KB)
📄 cpu.h(2.99 KB)
📄 cpufunc.h(15.05 KB)
📄 cputypes.h(2.64 KB)
📄 cserial.h(14.25 KB)
📄 db_machdep.h(2.87 KB)
📄 dump.h(85 B)
📄 efi.h(322 B)
📄 elan_mmcr.h(7.09 KB)
📄 elf.h(84 B)
📄 endian.h(87 B)
📄 exec.h(1.76 KB)
📄 fdt.h(84 B)
📄 float.h(86 B)
📄 floatingpoint.h(2.01 KB)
📄 fpu.h(87 B)
📄 frame.h(1.98 KB)
📄 gdb_machdep.h(1.89 KB)
📄 ieeefp.h(6.83 KB)
📄 in_cksum.h(3.98 KB)
📄 intr_machdep.h(93 B)
📄 iodev.h(1.81 KB)
📄 iommu.h(121 B)
📄 kdb.h(1.85 KB)
📄 limits.h(1.9 KB)
📄 md_var.h(3.41 KB)
📄 memdev.h(1.6 KB)
📄 metadata.h(89 B)
📄 minidump.h(1.71 KB)
📄 mp_watchdog.h(1.53 KB)
📄 nexusvar.h(1.76 KB)
📄 npx.h(3.39 KB)
📄 ofw_machdep.h(92 B)
📄 param.h(5.17 KB)
📁 pc
📄 pcb.h(3.61 KB)
📄 pcb_ext.h(1.88 KB)
📄 pci_cfgreg.h(91 B)
📄 pcpu.h(7.63 KB)
📄 pcpu_aux.h(2.3 KB)
📄 perfmon.h(7.25 KB)
📄 pmap.h(9.9 KB)
📄 pmap_base.h(5.33 KB)
📄 pmap_nopae.h(3.62 KB)
📄 pmap_pae.h(5.18 KB)
📄 pmc_mdep.h(5.51 KB)
📄 ppireg.h(1.88 KB)
📄 proc.h(2.92 KB)
📄 procctl.h(88 B)
📄 profile.h(5.53 KB)
📄 psl.h(84 B)
📄 ptrace.h(87 B)
📄 pvclock.h(88 B)
📄 reg.h(84 B)
📄 reloc.h(2.26 KB)
📄 resource.h(1.93 KB)
📄 runq.h(1.85 KB)
📄 segments.h(3.59 KB)
📄 setjmp.h(87 B)
📄 sf_buf.h(1.62 KB)
📄 sigframe.h(2.9 KB)
📄 signal.h(2.28 KB)
📄 smapi.h(2.57 KB)
📄 smp.h(1.16 KB)
📄 speaker.h(291 B)
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📄 stack.h(85 B)
📄 stdarg.h(87 B)
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📄 timerreg.h(2.05 KB)
📄 trap.h(85 B)
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📄 ucontext.h(2.34 KB)
📄 vdso.h(85 B)
📄 vm.h(2.02 KB)
📄 vm86.h(4.53 KB)
📄 vmparam.h(7.59 KB)
📁 xen

Editing: param.h

/*-
 * SPDX-License-Identifier: BSD-3-Clause
 *
 * 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. 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
 * $FreeBSD$
 */

#ifndef _I386_INCLUDE_PARAM_H_
#define	_I386_INCLUDE_PARAM_H_

#include <machine/_align.h>

/*
 * Machine dependent constants for Intel 386.
 */

#define __HAVE_ACPI
#define	__HAVE_PIR
#define __PCI_REROUTE_INTERRUPT

#ifndef MACHINE
#define MACHINE		"i386"
#endif
#ifndef MACHINE_ARCH
#define	MACHINE_ARCH	"i386"
#endif
#define MID_MACHINE	MID_I386

#ifdef SMP
#ifndef MAXCPU
#define MAXCPU		32
#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). 
 */
#define	ALIGNED_POINTER(p, t)	1

/*
 * 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		/* LOG2(PAGE_SIZE) */
#define PAGE_SIZE	(1 << PAGE_SHIFT)	/* bytes/page */
#define PAGE_MASK	(PAGE_SIZE - 1)
#define NPTEPG		(PAGE_SIZE / sizeof(pt_entry_t))

/* Size in bytes of the page directory */
#define NBPTD		(NPGPTD << PAGE_SHIFT)
/* Number of PDEs in page directory, 2048 for PAE, 1024 for non-PAE */
#define NPDEPTD		(NBPTD / sizeof(pd_entry_t))
/* Number of PDEs in one page of the page directory, 512 vs. 1024 */
#define NPDEPG		(PAGE_SIZE / sizeof(pd_entry_t))
#define PDRMASK		(NBPDR - 1)
#ifndef PDRSHIFT
#define	PDRSHIFT	i386_pmap_PDRSHIFT
#endif
#ifndef NBPDR
#define NBPDR		(1 << PDRSHIFT)	/* bytes/page dir */
#endif

#define	MAXPAGESIZES	2	/* maximum number of supported page sizes */

#define IOPAGES	2		/* pages of i/o permission bitmap */

#ifndef KSTACK_PAGES
#define KSTACK_PAGES 4		/* Includes pcb! */
#endif
#define KSTACK_GUARD_PAGES 1	/* pages of kstack guard; 0 disables */
#if KSTACK_PAGES < 4
#define	TD0_KSTACK_PAGES 4
#else
#define	TD0_KSTACK_PAGES KSTACK_PAGES
#endif

/*
 * Ceiling on amount of swblock kva space, can be changed via
 * the kern.maxswzone /boot/loader.conf variable.
 *
 * 276 is sizeof(struct swblock), but we do not always have a definition
 * in scope for struct swblock, so we have to hardcode it.  Each struct
 * swblock holds metadata for 32 pages, so in theory, this is enough for
 * 16 GB of swap.  In practice, however, the usable amount is considerably
 * lower due to fragmentation.
 */
#ifndef VM_SWZONE_SIZE_MAX
#define VM_SWZONE_SIZE_MAX	(276 * 128 * 1024)
#endif

/*
 * Ceiling on size of buffer cache (really only effects write queueing,
 * the VM page cache is not effected), can be changed via
 * the kern.maxbcache /boot/loader.conf variable.
 *
 * The value is equal to the size of the auto-tuned buffer map for
 * the machine with 4GB of RAM, see vfs_bio.c:kern_vfs_bio_buffer_alloc().
 */
#ifndef VM_BCACHE_SIZE_MAX
#define VM_BCACHE_SIZE_MAX	(7224 * 16 * 1024)
#endif

/*
 * Mach derived conversion macros
 */
#define trunc_page(x)		((x) & ~PAGE_MASK)
#define round_page(x)		(((x) + PAGE_MASK) & ~PAGE_MASK)
#define trunc_4mpage(x)		((x) & ~PDRMASK)
#define round_4mpage(x)		((((x)) + PDRMASK) & ~PDRMASK)

#define atop(x)			((x) >> PAGE_SHIFT)
#define ptoa(x)			((x) << PAGE_SHIFT)

#define i386_btop(x)		((x) >> PAGE_SHIFT)
#define i386_ptob(x)		((x) << PAGE_SHIFT)

#define	pgtok(x)		((x) * (PAGE_SIZE / 1024))

#define INKERNEL(va)		(TRUE)

#endif /* !_I386_INCLUDE_PARAM_H_ */

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