freebsd-skq

History

rgrimes 4de8a9b207 Fix definitions to be in terms of a minimum number of constants by

using the SHIFT value as the basis for the other values, for example
instead of:
#define		NBPG		4096
#define		PGSHIFT		12
use:
#define		PGSHIFT		12
#define		NBPG		(1 << PGSHIFT)

===================================================================
RCS file: /a/cvs/386BSD/src/sys/i386/include/param.h,v
retrieving revision 1.3
diff -c -r1.3 param.h
*** 1.3	1993/10/08 12:49:55
--- param.h	1993/10/08 12:53:19
***************
*** 52,76 ****
  #define ALIGNBYTES	(sizeof(int) - 1)
  #define ALIGN(p)	(((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)

- #define	NBPG		4096		/* bytes/page */
- #define	PGOFSET		(NBPG-1)	/* byte offset into page */
  #define	PGSHIFT		12		/* LOG2(NBPG) */
  #define	NPTEPG		(NBPG/(sizeof (struct pte)))

- #define NBPDR		(1024*NBPG)	/* bytes/page dir */
- #define	PDROFSET	(NBPDR-1)	/* byte offset into page dir */
  #define	PDRSHIFT	22		/* LOG2(NBPDR) */

  #define	KERNBASE	0xFE000000	/* start of kernel virtual */
  #define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)

! #define	DEV_BSIZE	512
  #define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
  #define BLKDEV_IOSIZE	2048
  #define	MAXPHYS		(64 * 1024)	/* max raw I/O transfer size */

- #define	CLSIZE		1
  #define	CLSIZELOG2	0

  /* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
  #define	SSIZE	1		/* initial stack size/NBPG */
--- 52,79 ----
  #define ALIGNBYTES	(sizeof(int) - 1)
  #define ALIGN(p)	(((u_int)(p) + ALIGNBYTES) &~ ALIGNBYTES)

  #define	PGSHIFT		12		/* LOG2(NBPG) */
+ #define	NBPG		(1 << PGSHIFT)	/* bytes/page */
+ #define	PGOFSET		(NBPG-1)	/* byte offset into page */
  #define	NPTEPG		(NBPG/(sizeof (struct pte)))

  #define	PDRSHIFT	22		/* LOG2(NBPDR) */
+ #define NBPDR		(1 << PDRSHIFT)	/* bytes/page dir */
+ #define	PDROFSET	(NBPDR-1)	/* byte offset into page dir */

  #define	KERNBASE	0xFE000000	/* start of kernel virtual */
  #define	BTOPKERNBASE	((u_long)KERNBASE >> PGSHIFT)

! #define	KERNSIZE	0x00C00000	/* size of kernel virtual */
!
  #define	DEV_BSHIFT	9		/* log2(DEV_BSIZE) */
+ #define	DEV_BSIZE	(1 << DEV_BSHIFT)
+
  #define BLKDEV_IOSIZE	2048
  #define	MAXPHYS		(64 * 1024)	/* max raw I/O transfer size */

  #define	CLSIZELOG2	0
+ #define	CLSIZE		(1 << CLSIZELOG2)

  /* NOTE: SSIZE, SINCR and UPAGES must be multiples of CLSIZE */
  #define	SSIZE	1		/* initial stack size/NBPG */
***************
*** 92,99 ****
  #ifndef	MCLSHIFT
  #define	MCLSHIFT	11		/* convert bytes to m_buf clusters */
  #endif	/* MCLSHIFT */
! #define	MCLBYTES	(1 << MCLSHIFT)	/* size of a m_buf cluster */
! #define	MCLOFSET	(MCLBYTES - 1)	/* offset within a m_buf cluster */

  #ifndef NMBCLUSTERS
  #ifdef GATEWAY
--- 95,102 ----
  #ifndef	MCLSHIFT
  #define	MCLSHIFT	11		/* convert bytes to m_buf clusters */
  #endif	/* MCLSHIFT */
! #define	MCLBYTES	(1 << MCLSHIFT)	/* size of an m_buf cluster */
! #define	MCLOFSET	(MCLBYTES - 1)	/* offset within an m_buf cluster */

  #ifndef NMBCLUSTERS
  #ifdef GATEWAY

1993-10-08 13:01:34 +00:00

alpha/include

Latest changes for XFree86 2.0

1993-10-04 22:21:10 +00:00

amd64

Architecture specific syscalls (i386) from NetBSD

1993-10-08 11:31:40 +00:00

conf

From ljo:

1993-10-06 20:49:17 +00:00

ddb

>From: rich@id.slip.bcm.tmc.edu.cdrom.com (Rich Murphey)