mirror of https://github.com/acidanthera/audk.git
149 lines
5.7 KiB
C
149 lines
5.7 KiB
C
/** @file
|
|
Machine dependent constants for Intel IA32 Architecture.
|
|
|
|
Copyright (c) 2010-2012, Intel Corporation. All rights reserved.<BR>
|
|
This program and the accompanying materials are licensed and made available under
|
|
the terms and conditions of the BSD License that accompanies this distribution.
|
|
The full text of the license may be found at
|
|
http://opensource.org/licenses/bsd-license.
|
|
|
|
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
|
|
|
* 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.
|
|
*
|
|
* @(#)param.h 5.8 (Berkeley) 6/28/91
|
|
* $NetBSD: param.h,v 1.61 2006/08/28 13:43:35 yamt Exp
|
|
*/
|
|
#ifndef _I386_PARAM_H_
|
|
#define _I386_PARAM_H_
|
|
|
|
#define _MACHINE i386
|
|
#define MACHINE "i386"
|
|
#define _MACHINE_ARCH i386
|
|
#define MACHINE_ARCH "i386"
|
|
#define MID_MACHINE MID_I386
|
|
|
|
/*
|
|
* 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(int) - 1)
|
|
#define ALIGN(p) (((EFI_ULONG_T)(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 NPTEPG (NBPG/(sizeof (pt_entry_t)))
|
|
|
|
#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 */
|
|
|
|
#ifndef UPAGES
|
|
#ifdef NOREDZONE
|
|
#define UPAGES 2 /* pages of u-area */
|
|
#else
|
|
#define UPAGES 3
|
|
#endif /*NOREDZONE */
|
|
#endif /* !defined(UPAGES) */
|
|
#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 */
|
|
/* 2K cluster can hold Ether frame */
|
|
#endif /* MCLSHIFT */
|
|
|
|
#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
|
|
|
|
#ifndef NMBCLUSTERS
|
|
#ifdef GATEWAY
|
|
#define NMBCLUSTERS 2048 /* map size, max cluster allocation */
|
|
#else
|
|
#define NMBCLUSTERS 1024 /* map size, max cluster allocation */
|
|
#endif
|
|
#endif
|
|
|
|
#ifndef NFS_RSIZE
|
|
#define NFS_RSIZE 32768
|
|
#endif
|
|
#ifndef NFS_WSIZE
|
|
#define NFS_WSIZE 32768
|
|
#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)
|
|
|
|
/*
|
|
* Mach derived conversion macros
|
|
*/
|
|
#define x86_round_pdr(x) ((((EFI_ULONG_T)(x)) + PDOFSET) & ~PDOFSET)
|
|
#define x86_trunc_pdr(x) ((EFI_ULONG_T)(x) & ~PDOFSET)
|
|
#define x86_btod(x) ((EFI_ULONG_T)(x) >> PDSHIFT)
|
|
#define x86_dtob(x) ((EFI_ULONG_T)(x) << PDSHIFT)
|
|
#define x86_round_page(x) ((((EFI_ULONG_T)(x)) + PGOFSET) & ~PGOFSET)
|
|
#define x86_trunc_page(x) ((EFI_ULONG_T)(x) & ~PGOFSET)
|
|
#define x86_btop(x) ((EFI_ULONG_T)(x) >> PGSHIFT)
|
|
#define x86_ptob(x) ((EFI_ULONG_T)(x) << PGSHIFT)
|
|
|
|
#endif /* _I386_PARAM_H_ */
|