Changeset 342 for trunk/src/emx/include/386/param.h

Timestamp:

Jul 10, 2003, 6:38:11 PM (22 years ago)

Author:

bird

Message:

#427: header updates.

File:

• trunk/src/emx/include/386/param.h (modified) (6 diffs, 1 prop)

trunk/src/emx/include/386/param.h

@@ -1 @@
-/*- modified for gcc by bird 2003 (don't really need much of this btw.)
- *
+/*-
  * Copyright (c) 1990 The Regents of the University of California.
  * All rights reserved.
@@ -36 +35 @@
  *
  *      from: @(#)param.h       5.8 (Berkeley) 6/28/91
- * $FreeBSD: src/sys/i386/include/param.h,v 1.54.2.8 2002/08/31 21:15:55 dillon Exp $
+ * $FreeBSD: src/sys/i386/include/param.h,v 1.68 2003/03/30 05:24:52 jake Exp $
+ *
+ * @@level      FreeBSD 5.1
  */
 
@@ -75 +76 @@
 #define MID_MACHINE     MID_I386
 
-/*
- * OBJFORMAT_NAMES is a comma-separated list of the object formats
- * that are supported on the architecture.
- */
-#define OBJFORMAT_NAMES         "aout", "omf"
-#define OBJFORMAT_DEFAULT       "aout"
-
 #ifdef SMP
 #define MAXCPU          16
@@ -96 +90 @@
 #define NPTEPG          (PAGE_SIZE/(sizeof (pt_entry_t)))
 
+#ifdef PAE
+#define NPGPTD          4
+#define PDRSHIFT        21              /* LOG2(NBPDR) */
+#else
+#define NPGPTD          1
+#define PDRSHIFT        22              /* LOG2(NBPDR) */
+#endif
+
+#define NBPTD           (NPGPTD<<PAGE_SHIFT)
+#define NPDEPTD         (NBPTD/(sizeof (pd_entry_t)))
 #define NPDEPG          (PAGE_SIZE/(sizeof (pd_entry_t)))
-#define PDRSHIFT        22              /* LOG2(NBPDR) */
 #define NBPDR           (1<<PDRSHIFT)   /* bytes/page dir */
 #define PDRMASK         (NBPDR-1)
 
-#define DEV_BSHIFT      9               /* log2(DEV_BSIZE) */
-#define DEV_BSIZE       (1<<DEV_BSHIFT)
+#define IOPAGES 2               /* pages of i/o permission bitmap */
 
-#ifndef BLKDEV_IOSIZE
-#define BLKDEV_IOSIZE   PAGE_SIZE       /* default block device I/O size */
+#ifndef KSTACK_PAGES
+#define KSTACK_PAGES 2          /* Includes pcb! */
 #endif
-#define DFLTPHYS        (64 * 1024)     /* default max raw I/O transfer size */
-#define MAXPHYS         (128 * 1024)    /* max raw I/O transfer size */
-#define MAXDUMPPGS      (DFLTPHYS/PAGE_SIZE)
+#define UAREA_PAGES 1           /* holds struct user WITHOUT PCB (see def.) */
 
-#define IOPAGES 2               /* pages of i/o permission bitmap */
-#define UPAGES  3               /* pages of u-area */
+#define KSTACK_GUARD            /* compile in the kstack guard page */
 
 /*
  * Ceiling on amount of swblock kva space, can be changed via
- * kern.maxswzone /boot/loader.conf variable.
+ * the kern.maxswzone /boot/loader.conf variable.
  */
 #ifndef VM_SWZONE_SIZE_MAX
@@ -125 +124 @@
  * Ceiling on size of buffer cache (really only effects write queueing,
  * the VM page cache is not effected), can be changed via
- * kern.maxbcache /boot/loader.conf variable.
+ * the kern.maxbcache /boot/loader.conf variable.
  */
 #ifndef VM_BCACHE_SIZE_MAX
 #define VM_BCACHE_SIZE_MAX      (200 * 1024 * 1024)
 #endif
-
-
-/*
- * Constants related to network buffer management.
- * MCLBYTES must be no larger than CLBYTES (the software page size), and,
- * on machines that exchange pages of input or output buffers with mbuf
- * clusters (MAPPED_MBUFS), MCLBYTES must also be an integral multiple
- * of the hardware page size.
- */
-#ifndef MSIZE
-#define MSIZE           256             /* size of an mbuf */
-#endif  /* MSIZE */
-
-#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 */
-
-/*
- * Some macros for units conversion
- */
-
-/* clicks to bytes */
-#define ctob(x) ((x)<<PAGE_SHIFT)
-
-/* bytes to clicks */
-#define btoc(x) (((unsigned)(x)+PAGE_MASK)>>PAGE_SHIFT)
-
-/*
- * btodb() is messy and perhaps slow because `bytes' may be an off_t.  We
- * want to shift an unsigned type to avoid sign extension and we don't
- * want to widen `bytes' unnecessarily.  Assume that the result fits in
- * a daddr_t.
- */
-#define btodb(bytes)                    /* calculates (bytes / DEV_BSIZE) */ \
-        (sizeof (bytes) > sizeof(long) \
-         ? (daddr_t)((unsigned long long)(bytes) >> DEV_BSHIFT) \
-         : (daddr_t)((unsigned long)(bytes) >> DEV_BSHIFT))
-
-#define dbtob(db)                       /* calculates (db * DEV_BSIZE) */ \
-        ((off_t)(db) << DEV_BSHIFT)
 
 /*
@@ -178 +135 @@
 #define trunc_page(x)           ((x) & ~PAGE_MASK)
 #define round_page(x)           (((x) + PAGE_MASK) & ~PAGE_MASK)
-#define trunc_4mpage(x)         ((unsigned)(x) & ~PDRMASK)
-#define round_4mpage(x)         ((((unsigned)(x)) + PDRMASK) & ~PDRMASK)
+#define trunc_4mpage(x)         ((x) & ~PDRMASK)
+#define round_4mpage(x)         ((((x)) + PDRMASK) & ~PDRMASK)
 
-#define atop(x)                 ((unsigned)(x) >> PAGE_SHIFT)
-#define ptoa(x)                 ((unsigned)(x) << PAGE_SHIFT)
+#define atop(x)                 ((x) >> PAGE_SHIFT)
+#define ptoa(x)                 ((x) << PAGE_SHIFT)
 
-#define i386_btop(x)            ((unsigned)(x) >> PAGE_SHIFT)
-#define i386_ptob(x)            ((unsigned)(x) << PAGE_SHIFT)
+#define i386_btop(x)            ((x) >> PAGE_SHIFT)
+#define i386_ptob(x)            ((x) << PAGE_SHIFT)
 
 #define pgtok(x)                ((x) * (PAGE_SIZE / 1024))
 
-#ifdef _KERNEL
-
-/*
- * We put here the definition of two debugging macros/function which
- * are very convenient to have available.
- * The macro is called TSTMP() and is used to timestamp events in the
- * kernel using the TSC register, and export them to userland through
- * the sysctl variable debug.timestamp, which is a circular buffer
- * holding pairs of u_int32_t variables <timestamp, argument> .
- * They can be retrieved with something like
- *
- *      sysctl -b debug.timestamp | hexdump -e '"%15u %15u\n"'
- *
- * The function _TSTMP() is defined in i386/isa/clock.c. It does not
- * try to grab any locks or block interrupts or identify which CPU it
- * is running on. You are supposed to know what to do if you use it.
- *
- * The macros must be enabled with "options KERN_TIMESTAMP" in the kernel
- * config file, otherwise they default to an empty block.
- */
-
-#ifdef KERN_TIMESTAMP
-extern void _TSTMP(u_int32_t argument);
-#define TSTMP(class, unit, event, par)  _TSTMP( \
-        (((class) &   0x0f) << 28 ) |           \
-        (((unit)  &   0x0f) << 24 ) |           \
-        (((event) &   0xff) << 16 ) |           \
-        (((par)   & 0xffff)       )   )
-
-#else /* !KERN_TIMESTAMP */
-#define        _TSTMP(x)                       {}
-#define        TSTMP(class, unit, event, par)  _TSTMP(0)
-#endif /* !KERN_TIMESTAMP */
-#endif /* _KERNEL */
-
 #endif /* !_MACHINE_PARAM_H_ */
 #endif /* !_NO_NAMESPACE_POLLUTION */