fix autoconf, move code to isa.c, remove debugging, drop redundant tlbflushes, macros...

[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 9eaf632..403e731 100644 (file)
--- a/usr/src/sys/i386/include/vmparam.h
+++ b/usr/src/sys/i386/include/vmparam.h
@@ -7,7 +7,7 @@
  *
  * %sccs.include.noredist.c%
  *
  *
  * %sccs.include.noredist.c%
  *

- *     @(#)vmparam.h   5.1 (Berkeley) %G%
+ *     @(#)vmparam.h   5.3 (Berkeley) %G%

  */
 
 /*
  */
 
 /*


@@ -25,6 +25,7 @@
  * region begins with user text and ends with user data.
  * Immediately after the user structure is the kernal address space.
  */
  * region begins with user text and ends with user data.
  * Immediately after the user structure is the kernal address space.
  */

+

 #define        USRTEXT         0
 #define        USRSTACK        0xFDFFE000      /* Sysbase - UPAGES*NBPG */
 #define        BTOPUSRSTACK    (0xFE000-(UPAGES))      /* btop(USRSTACK) */
 #define        USRTEXT         0
 #define        USRSTACK        0xFDFFE000      /* Sysbase - UPAGES*NBPG */
 #define        BTOPUSRSTACK    (0xFE000-(UPAGES))      /* btop(USRSTACK) */


@@ -65,6 +66,11 @@
 #define        SYSPTSIZE       (2*NPTEPG)
 #define        USRPTSIZE       (2*NPTEPG)
 
 #define        SYSPTSIZE       (2*NPTEPG)
 #define        USRPTSIZE       (2*NPTEPG)
 

+/*
+ * Size of User Raw I/O map
+ */
+#define        USRIOSIZE       30
+

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


@@ -96,7 +102,7 @@
  * { wfj 6/16/89: Retail AT memory expansion $800/megabyte, loan of $17
  *   on disk costing $7/mb or $0.18 (in memory still 100:1 in cost!) }
  */
  * { wfj 6/16/89: Retail AT memory expansion $800/megabyte, loan of $17
  *   on disk costing $7/mb or $0.18 (in memory still 100:1 in cost!) }
  */

-#define        SAFERSS         32              /* nominal ``small'' resident set size
+#define        SAFERSS         8               /* nominal ``small'' resident set size

                                           protected against replacement */
 
 /*
                                           protected against replacement */
 
 /*


@@ -162,7 +168,7 @@
 #define        LOTSOFMEM       2
 
 #define        mapin(pte, v, pfnum, prot) \
 #define        LOTSOFMEM       2
 
 #define        mapin(pte, v, pfnum, prot) \

-       (*(int *)(pte) = ((pfnum)<<PGSHIFT) | (prot))
+       {(*(int *)(pte) = ((pfnum)<<PGSHIFT) | (prot)); tlbflush(); }

 
 /*
  * Invalidate a cluster (optimized here for standard CLSIZE).
 
 /*
  * Invalidate a cluster (optimized here for standard CLSIZE).


@@ -170,3 +176,33 @@
 #if CLSIZE == 1
 #define        tbiscl(v)
 #endif
 #if CLSIZE == 1
 #define        tbiscl(v)
 #endif

+
+/*
+ * inline assembler macros
+ */
+
+/*
+ * Flush MMU TLB
+ */
+
+#define        tlbflush()      asm(" movl %%cr3,%%eax; movl %%eax,%%cr3 " ::: "ax")
+
+#ifndef I386_CR3PAT
+#define        I386_CR3PAT     0x0
+#endif
+
+#define _cr3() ({u_long rtn; \
+       asm (" movl %%cr3,%%eax; movl %%eax,%0 " \
+               : "=g" (rtn) \
+               : \
+               : "ax"); \
+       rtn; \
+})
+
+#define load_cr3(s) ({ u_long val; \
+       val = (s) | I386_CR3PAT; \
+       asm ("movl %0,%%eax; movl %%eax,%%cr3" \
+               :  \
+               : "g" (val) \
+               : "ax"); \
+})