/*
- * Copyright (c) 2000-2002, 2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2010 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*-
* Copyright (c) 1990, 1993
#ifndef _I386_PARAM_H_
#define _I386_PARAM_H_
+#include <i386/_param.h>
+
/*
* Round p (pointer or byte index) up to a correctly-aligned value for all
- * data types (int, long, ...). The result is unsigned long and must be
+ * data types (int, long, ...). The result is unsigned int and must be
* cast to any desired pointer type.
*/
-#define ALIGNBYTES (sizeof(unsigned long) - 1)
-#define ALIGN(p) ((unsigned long)((char *)(p) + ALIGNBYTES) &~ ALIGNBYTES)
+#define ALIGNBYTES __DARWIN_ALIGNBYTES
+#define ALIGN(p) __DARWIN_ALIGN(p)
-#define NBPG 4096 /* bytes/page */
-#define PGOFSET (NBPG-1) /* byte offset into page */
-#define PGSHIFT 12 /* LOG2(NBPG) */
+#define NBPG 4096 /* bytes/page */
+#define PGOFSET (NBPG-1) /* byte offset into page */
+#define PGSHIFT 12 /* LOG2(NBPG) */
-#define DEV_BSIZE 512
-#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
-#define BLKDEV_IOSIZE 2048
-#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */
+#define DEV_BSIZE 512
+#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
+#define BLKDEV_IOSIZE 2048
+#define MAXPHYS (128 * 1024) /* max raw I/O transfer size */
-#define CLSIZE 1
-#define CLSIZELOG2 0
+#define CLSIZE 1
+#define CLSIZELOG2 0
/*
* Constants related to network buffer management.
* clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
* of the hardware page size.
*/
-#define MSIZE 256 /* size of an mbuf */
-#define MCLBYTES 2048 /* large enough for ether MTU */
-#define MCLSHIFT 11
-#define MCLOFSET (MCLBYTES - 1)
+#define MSIZESHIFT 8 /* 256 */
+#define MSIZE (1 << MSIZESHIFT) /* size of an mbuf */
+#define MCLSHIFT 11 /* 2048 */
+#define MCLBYTES (1 << MCLSHIFT) /* size of an mbuf cluster */
+#define MBIGCLSHIFT 12 /* 4096 */
+#define MBIGCLBYTES (1 << MBIGCLSHIFT) /* size of a big cluster */
+#define M16KCLSHIFT 14 /* 16384 */
+#define M16KCLBYTES (1 << M16KCLSHIFT) /* size of a jumbo cluster */
+
+#define MCLOFSET (MCLBYTES - 1)
#ifndef NMBCLUSTERS
-#ifdef GATEWAY
-#define NMBCLUSTERS ((1024 * 1024) / MCLBYTES) /* cl map size: 1MB */
-#else
-#define NMBCLUSTERS ((1024 * 512) / MCLBYTES) /* cl map size: 0.5MB */
-#endif
+#define NMBCLUSTERS ((1024 * 1024) / MCLBYTES) /* cl map size: 1MB */
#endif
/*
* Some macros for units conversion
*/
/* Core clicks (NeXT_page_size bytes) to segments and vice versa */
-#define ctos(x) (x)
-#define stoc(x) (x)
+#define ctos(x) (x)
+#define stoc(x) (x)
/* Core clicks (4096 bytes) to disk blocks */
-#define ctod(x) ((x)<<(PGSHIFT-DEV_BSHIFT))
-#define dtoc(x) ((x)>>(PGSHIFT-DEV_BSHIFT))
-#define dtob(x) ((x)<<DEV_BSHIFT)
+#define ctod(x) ((x)<<(PGSHIFT-DEV_BSHIFT))
+#define dtoc(x) ((x)>>(PGSHIFT-DEV_BSHIFT))
+#define dtob(x) ((x)<<DEV_BSHIFT)
/* clicks to bytes */
-#define
ctob(x) ((x)<<PGSHIFT)
+#define ctob(x) ((x)<<PGSHIFT)
/* bytes to clicks */
-#define btoc(x) (((unsigned)(x)+(NBPG-1))>>PGSHIFT)
+#define btoc(x) (((unsigned)(x)+(NBPG-1))>>PGSHIFT)
#ifdef __APPLE__
#define btodb(bytes, devBlockSize) \
- ((unsigned)(bytes) / devBlockSize)
+ ((unsigned)(bytes) / devBlockSize)
#define dbtob(db, devBlockSize) \
- ((unsigned)(db) * devBlockSize)
+ ((unsigned)(db) * devBlockSize)
#else
-#define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \
+#define btodb(bytes) /* calculates (bytes / DEV_BSIZE) */ \
((unsigned)(bytes) >> DEV_BSHIFT)
-#define dbtob(db) /* calculates (db * DEV_BSIZE) */ \
+#define dbtob(db) /* calculates (db * DEV_BSIZE) */ \
((unsigned)(db) << DEV_BSHIFT)
#endif
* add an entry to cdevsw/bdevsw for that purpose.
* For now though just use DEV_BSIZE.
*/
-#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
+#define bdbtofsb(bn) ((bn) / (BLKDEV_IOSIZE/DEV_BSIZE))
/*
* Macros to decode (and encode) processor status word.
*/
-#define STATUS_WORD(rpl, ipl) (((ipl) << 8) | (rpl))
-#define USERMODE(x) (((x) & 3) == 3)
-#define BASEPRI(x) (((x) & (255 << 8)) == 0)
+#define STATUS_WORD(rpl, ipl) (((ipl) << 8) | (rpl))
+#define USERMODE(x) (((x) & 3) == 3)
+#define BASEPRI(x) (((x) & (255 << 8)) == 0)
-#if defined(KERNEL) || defined(STANDALONE)
-#define DELAY(n) delay(n)
+#if defined(KERNEL) || defined(STANDALONE)
+#define DELAY(n) delay(n)
-#else /* defined(KERNEL) || defined(STANDALONE) */
-#define DELAY(n) { register int N = (n); while (--N > 0); }
-#endif /* defined(KERNEL) || defined(STANDALONE) */
+#else /* defined(KERNEL) || defined(STANDALONE) */
+#define DELAY(n) { int N = (n); while (--N > 0); }
+#endif /* defined(KERNEL) || defined(STANDALONE) */
#endif /* _I386_PARAM_H_ */
projects / apple / xnu.git / blobdiff