mirror of https://github.com/acidanthera/audk.git
106 lines
3.7 KiB
C
106 lines
3.7 KiB
C
/** @file
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Machine dependent constants for the Intel64 Architecture(X64).
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Copyright (c) 2010-2012, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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* $NetBSD: param.h,v 1.3 2006/08/28 13:43:35 yamt Exp
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**/
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#ifndef _X64_PARAM_H_
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#define _X64_PARAM_H_
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#define _MACHINE amd64
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#define MACHINE "amd64"
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#define _MACHINE_ARCH x86_64
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#define MACHINE_ARCH "x86_64"
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#define MID_MACHINE MID_X86_64
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/*
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* Round p (pointer or byte index) up to a correctly-aligned value
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* for all data types (int, long, ...). The result is u_int and
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* must be cast to any desired pointer type.
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*
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* ALIGNED_POINTER is a boolean macro that checks whether an address
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* is valid to fetch data elements of type t from on this architecture.
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* This does not reflect the optimal alignment, just the possibility
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* (within reasonable limits).
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*
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*/
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#define ALIGNBYTES (sizeof(INT64) - 1)
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#define ALIGN(p) (((UINT64)(p) + ALIGNBYTES) &~ALIGNBYTES)
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#define ALIGNED_POINTER(p,t) 1
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#define ALIGNBYTES32 (sizeof(INT32) - 1)
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#define ALIGN32(p) (((UINT64)(p) + ALIGNBYTES32) &~ALIGNBYTES32)
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#define PGSHIFT 12 /* LOG2(NBPG) */
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#define NBPG (1 << PGSHIFT) /* bytes/page */
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#define PGOFSET (NBPG-1) /* byte offset into page */
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#define NPTEPG (NBPG/(sizeof (pt_entry_t)))
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#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
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#define DEV_BSIZE (1 << DEV_BSHIFT)
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#define BLKDEV_IOSIZE 2048
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#ifndef MAXPHYS
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#define MAXPHYS (64 * 1024) /* max raw I/O transfer size */
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#endif
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#define SSIZE 1 /* initial stack size/NBPG */
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#define SINCR 1 /* increment of stack/NBPG */
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#define UPAGES 5 /* pages of u-area */
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#define USPACE (UPAGES * NBPG) /* total size of u-area */
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#ifndef MSGBUFSIZE
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#define MSGBUFSIZE 4*NBPG /* default message buffer size */
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#endif
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/*
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* Constants related to network buffer management.
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* MCLBYTES must be no larger than NBPG (the software page size), and,
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* on machines that exchange pages of input or output buffers with mbuf
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* clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
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* of the hardware page size.
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*/
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#define MSIZE 512 /* size of an mbuf */
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#ifndef MCLSHIFT
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#define MCLSHIFT 11 /* convert bytes to m_buf clusters */
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/* 2K cluster can hold Ether frame */
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#endif /* MCLSHIFT */
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#define MCLBYTES (1 << MCLSHIFT) /* size of a m_buf cluster */
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#ifndef NMBCLUSTERS
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#ifdef GATEWAY
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#define NMBCLUSTERS 4096 /* map size, max cluster allocation */
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#else
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#define NMBCLUSTERS 2048 /* map size, max cluster allocation */
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#endif
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#endif
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#ifndef NFS_RSIZE
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#define NFS_RSIZE 32768
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#endif
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#ifndef NFS_WSIZE
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#define NFS_WSIZE 32768
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#endif
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#define x86_round_page(x) ((((EFI_ULONG_T)(x)) + PGOFSET) & ~PGOFSET)
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#define x86_trunc_page(x) ((EFI_ULONG_T)(x) & ~PGOFSET)
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#define x86_btop(x) ((EFI_ULONG_T)(x) >> PGSHIFT)
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#define x86_ptob(x) ((EFI_ULONG_T)(x) << PGSHIFT)
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#define btop(x) x86_btop(x)
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#define ptob(x) x86_ptob(x)
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#define round_pdr(x) x86_round_pdr(x)
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#define mstohz(ms) ((ms + 0UL) * hz / 1000)
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#endif /* _X64_PARAM_H_ */
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