BSD 4_4 release

[unix-history] / usr / src / sys / i386 / include / vmparam.h

diff --git a/usr/src/sys/i386/include/vmparam.h b/usr/src/sys/i386/include/vmparam.h
index a92a9d1..7157d21 100644 (file)
--- a/usr/src/sys/i386/include/vmparam.h
+++ b/usr/src/sys/i386/include/vmparam.h
@@ -1,13 +1,39 @@
 /*-
 /*-

- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
+ * Copyright (c) 1990, 1993
+ *     The Regents of the University of California.  All rights reserved.

  *
  * This code is derived from software contributed to Berkeley by
  * William Jolitz.
  *
  *
  * This code is derived from software contributed to Berkeley by
  * William Jolitz.
  *

- * %sccs.include.noredist.c%
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.

  *
  *

- *     @(#)vmparam.h   5.4 (Berkeley) %G%
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)vmparam.h   8.1 (Berkeley) 6/11/93

  */
 
 
  */
 
 


@@ -21,16 +47,14 @@
  * USRTEXT is the start of the user text/data space, while USRSTACK
  * is the top (end) of the user stack. Immediately above the user stack
  * resides the user structure, which is UPAGES long and contains the
  * USRTEXT is the start of the user text/data space, while USRSTACK
  * is the top (end) of the user stack. Immediately above the user stack
  * resides the user structure, which is UPAGES long and contains the

- * kernel stack. As such, UPAGES is the number of pages from the beginning
- * of the P1 region to the beginning of the user stack. Also, the P0
- * region begins with user text and ends with user data.
- * Immediately after the user structure is the kernal address space.
+ * kernel stack.
+ *
+ * Immediately after the user structure is the page table map, and then
+ * kernal address space.

  */
 #define        USRTEXT         0
  */
 #define        USRTEXT         0

-#define        USRSTACK        0xFDFFE000      /* Sysbase - UPAGES*NBPG */
-#define        BTOPUSRSTACK    (0xFE000-(UPAGES))      /* btop(USRSTACK) */
-
-#define P1PAGES                0xFE000
+#define        USRSTACK        0xFDBFE000
+#define        BTOPUSRSTACK    (0xFDC00-(UPAGES))      /* btop(USRSTACK) */

 #define        LOWPAGES        0
 #define HIGHPAGES      UPAGES
 
 #define        LOWPAGES        0
 #define HIGHPAGES      UPAGES
 


@@ -171,11 +195,31 @@
        {(*(int *)(pte) = ((pfnum)<<PGSHIFT) | (prot)) ; }
 
 /*
        {(*(int *)(pte) = ((pfnum)<<PGSHIFT) | (prot)) ; }
 
 /*

- * Invalidate a cluster (optimized here for standard CLSIZE).
+ * Mach derived constants

  */
  */

-#if CLSIZE == 1
-#define        tbiscl(v)
-#endif
+
+/* user/kernel map constants */
+#define VM_MIN_ADDRESS         ((vm_offset_t)0)
+#define VM_MAXUSER_ADDRESS     ((vm_offset_t)0xFDBFD000)
+#define UPT_MIN_ADDRESS                ((vm_offset_t)0xFDC00000)
+#define UPT_MAX_ADDRESS                ((vm_offset_t)0xFDFF7000)
+#define VM_MAX_ADDRESS         UPT_MAX_ADDRESS
+#define VM_MIN_KERNEL_ADDRESS  ((vm_offset_t)0xFDFF7000)
+#define UPDT                   VM_MIN_KERNEL_ADDRESS
+#define KPT_MIN_ADDRESS                ((vm_offset_t)0xFDFF8000)
+#define KPT_MAX_ADDRESS                ((vm_offset_t)0xFDFFF000)
+#define VM_MAX_KERNEL_ADDRESS  ((vm_offset_t)0xFF7FF000)
+
+/* virtual sizes (bytes) for various kernel submaps */
+#define VM_MBUF_SIZE           (NMBCLUSTERS*MCLBYTES)
+#define VM_KMEM_SIZE           (NKMEMCLUSTERS*CLBYTES)
+#define VM_PHYS_SIZE           (USRIOSIZE*CLBYTES)
+
+/* # of kernel PT pages (initial only, can grow dynamically) */
+#define VM_KERNEL_PT_PAGES     ((vm_size_t)2)          /* XXX: SYSPTSIZE */
+
+/* pcb base */
+#define        pcbb(p)         ((u_int)(p)->p_addr)

 
 /*
  * Flush MMU TLB
 
 /*
  * Flush MMU TLB


@@ -185,6 +229,7 @@
 #define        I386_CR3PAT     0x0
 #endif
 
 #define        I386_CR3PAT     0x0
 #endif
 

+#ifdef notyet

 #define _cr3() ({u_long rtn; \
        asm (" movl %%cr3,%%eax; movl %%eax,%0 " \
                : "=g" (rtn) \
 #define _cr3() ({u_long rtn; \
        asm (" movl %%cr3,%%eax; movl %%eax,%0 " \
                : "=g" (rtn) \


@@ -208,3 +253,4 @@
                : "g" (val) \
                : "ax"); \
 })
                : "g" (val) \
                : "ax"); \
 })

+#endif