/** @file | |
Machine dependent constants for the Intel64 Architecture(X64). | |
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. | |
* $NetBSD: param.h,v 1.3 2006/08/28 13:43:35 yamt Exp | |
**/ | |
#ifndef _X64_PARAM_H_ | |
#define _X64_PARAM_H_ | |
#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_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(INT64) - 1) | |
#define ALIGN(p) (((UINT64)(p) + ALIGNBYTES) &~ALIGNBYTES) | |
#define ALIGNED_POINTER(p,t) 1 | |
#define ALIGNBYTES32 (sizeof(INT32) - 1) | |
#define ALIGN32(p) (((UINT64)(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))) | |
#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 512 /* 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 4096 /* map size, max cluster allocation */ | |
#else | |
#define NMBCLUSTERS 2048 /* map size, max cluster allocation */ | |
#endif | |
#endif | |
#ifndef NFS_RSIZE | |
#define NFS_RSIZE 32768 | |
#endif | |
#ifndef NFS_WSIZE | |
#define NFS_WSIZE 32768 | |
#endif | |
#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) | |
#define btop(x) x86_btop(x) | |
#define ptob(x) x86_ptob(x) | |
#define round_pdr(x) x86_round_pdr(x) | |
#define mstohz(ms) ((ms + 0UL) * hz / 1000) | |
#endif /* _X64_PARAM_H_ */ |