add basic data types

[unix-history] / usr / src / sys / vax / include / vmparam.h

diff --git a/usr/src/sys/vax/include/vmparam.h b/usr/src/sys/vax/include/vmparam.h
index 33c5d87..0d927be 100644 (file)
--- a/usr/src/sys/vax/include/vmparam.h
+++ b/usr/src/sys/vax/include/vmparam.h
@@ -1,9 +1,10 @@
-/*
- * Copyright (c) 1982, 1986 Regents of the University of California.
- * All rights reserved.  The Berkeley software License Agreement
- * specifies the terms and conditions for redistribution.
+/*-
+ * Copyright (c) 1982, 1986 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * %sccs.include.proprietary.c%

  *
  *

- *     @(#)vmparam.h   7.1 (Berkeley) %G%
+ *     @(#)vmparam.h   7.4 (Berkeley) %G%

  */
 
 /*
  */
 
 /*


@@ -47,6 +48,8 @@
  * Default sizes of swap allocation chunks (see dmap.h).
  * The actual values may be changed in vminit() based on MAXDSIZ.
  * With MAXDSIZ of 16Mb and NDMAP of 38, dmmax will be 1024.
  * Default sizes of swap allocation chunks (see dmap.h).
  * The actual values may be changed in vminit() based on MAXDSIZ.
  * With MAXDSIZ of 16Mb and NDMAP of 38, dmmax will be 1024.

+ * DMMIN should be at least ctod(1) so that vtod() works.
+ * vminit() ensures this.

  */
 #define        DMMIN   32                      /* smallest swap allocation */
 #define        DMMAX   4096                    /* largest potential swap allocation */
  */
 #define        DMMIN   32                      /* smallest swap allocation */
 #define        DMMAX   4096                    /* largest potential swap allocation */


@@ -59,6 +62,19 @@
 #define        SYSPTSIZE       ((20+MAXUSERS)*NPTEPG)
 #define        USRPTSIZE       (32*NPTEPG)
 
 #define        SYSPTSIZE       ((20+MAXUSERS)*NPTEPG)
 #define        USRPTSIZE       (32*NPTEPG)
 

+/*
+ * PTEs for system V compatible shared memory.
+ * This is basically slop for kmempt which we actually allocate (malloc) from.
+ */
+#define SHMMAXPGS      1024
+
+/*
+ * Boundary at which to place first MAPMEM segment if not explicitly
+ * specified.  Should be a power of two.  This allows some slop for
+ * the data segment to grow underneath the first mapped segment.
+ */
+#define MMSEG          0x200000
+

 /*
  * The size of the clock loop.
  */
 /*
  * The size of the clock loop.
  */


@@ -104,7 +120,9 @@
  * larger than it really is.
  *
  * KLMAX gives maximum cluster size in CLSIZE page (cluster-page)
  * larger than it really is.
  *
  * KLMAX gives maximum cluster size in CLSIZE page (cluster-page)

- * units.  Note that KLMAX*CLSIZE must be <= DMMIN in dmap.h.
+ * units.  Note that ctod(KLMAX*CLSIZE) must be <= DMMIN in dmap.h.
+ * ctob(KLMAX) should also be less than MAXPHYS (in vm_swp.c) to
+ * avoid "big push" panics.

  */
 
 #define        KLMAX   (32/CLSIZE)
  */
 
 #define        KLMAX   (32/CLSIZE)


@@ -153,8 +171,5 @@
  */
 #define        LOTSOFMEM       2
 
  */
 #define        LOTSOFMEM       2
 

-/*
- * BEWARE THIS DEFINITION WORKS ONLY WITH COUNT OF 1
- */
-#define        mapin(pte, v, pfnum, count, prot) \
-       (*(int *)(pte) = (pfnum) | (prot), mtpr(TBIS, ptob(v)))
+#define        mapin(pte, v, pfnum, prot) \
+       (*(int *)(pte) = (pfnum) | (prot), mtpr(TBIS, v))