[src/trunk]: src/sys/arch/sparc64/include add some sun4/sun4c/sun4m compat co...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/33a04bc3ab01
branches:  trunk
changeset: 514343:33a04bc3ab01
user:      mrg <mrg%NetBSD.org@localhost>
date:      Thu Aug 30 09:32:23 2001 +0000

description:
add some sun4/sun4c/sun4m compat code so we can build 32 bit kvm.  (these files are not even vaguely syncable.)

diffstat:

 sys/arch/sparc64/include/pmap.h |   9 ++++++++-
 sys/arch/sparc64/include/pte.h  |  40 +++++++++++++++++++++++++++++++++++++++-
 2 files changed, 47 insertions(+), 2 deletions(-)

diffs (82 lines):

diff -r e48a507479ea -r 33a04bc3ab01 sys/arch/sparc64/include/pmap.h
--- a/sys/arch/sparc64/include/pmap.h   Thu Aug 30 09:30:40 2001 +0000
+++ b/sys/arch/sparc64/include/pmap.h   Thu Aug 30 09:32:23 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pmap.h,v 1.16 2001/04/22 23:19:30 thorpej Exp $        */
+/*     $NetBSD: pmap.h,v 1.17 2001/08/30 09:32:23 mrg Exp $    */
 
 /*-
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -185,4 +185,11 @@
 
 #endif /* _KERNEL */
 #endif /* _LOCORE */
+
+/* This is only for compatibility with the SPARC */ 
+struct segmap {
+       int     *sg_pte;                /* points to NPTESG PTEs */
+       pmeg_t  sg_pmeg;                /* the MMU segment number (4c) */
+       u_char  sg_npte;                /* number of valid PTEs per seg */
+};
 #endif /* _MACHINE_PMAP_H_ */
diff -r e48a507479ea -r 33a04bc3ab01 sys/arch/sparc64/include/pte.h
--- a/sys/arch/sparc64/include/pte.h    Thu Aug 30 09:30:40 2001 +0000
+++ b/sys/arch/sparc64/include/pte.h    Thu Aug 30 09:32:23 2001 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: pte.h,v 1.7 2001/07/31 06:55:46 eeh Exp $ */
+/*     $NetBSD: pte.h,v 1.8 2001/08/30 09:32:23 mrg Exp $ */
 
 /*
  * Copyright (c) 1996-1999 Eduardo Horvath
@@ -54,9 +54,13 @@
  */
 
 /* virtual address to virtual page number */
+#define        VA_SUN4_VPG(va)         (((int)(va) >> 13) & 31)
+#define        VA_SUN4C_VPG(va)        (((int)(va) >> 12) & 63)
 #define        VA_SUN4U_VPG(va)        (((int)(va) >> 13) & 31)
 
 /* virtual address to offset within page */
+#define VA_SUN4_OFF(va)        (((int)(va)) & 0x1FFF)
+#define VA_SUN4C_OFF(va)       (((int)(va)) & 0xFFF)
 #define VA_SUN4U_OFF(va)               (((int)(va)) & 0x1FFF)
 
 /* When we go to 64-bit VAs we need to handle the hole */
@@ -234,3 +238,37 @@
 #define IOPTE_RSVD      0x000000f1
 #define IOPTE_WRITE     0x00000004
 #define IOPTE_VALID     0x00000002
+
+/*
+ * This is purely for compatibility with the old SPARC machines.
+ */
+#define        NBPRG   (1 << 24)       /* bytes per region */
+#define        RGSHIFT 24              /* log2(NBPRG) */
+#define NSEGRG (NBPRG / NBPSG) /* segments per region */
+
+#define        NBPSG   (1 << 18)       /* bytes per segment */
+#define        SGSHIFT 18              /* log2(NBPSG) */
+
+/* there is no `struct pte'; we just use `int'; this is for non-4M only */
+#define        PG_V            0x80000000
+#define        PG_PFNUM        0x0007ffff      /* n.b.: only 16 bits on sun4c */
+
+/* virtual address to virtual region number */
+#define        VA_VREG(va)     (((unsigned int)(va) >> RGSHIFT) & 255)
+
+/* virtual address to virtual segment number */
+#define        VA_VSEG(va)     (((unsigned int)(va) >> SGSHIFT) & 63)
+
+#ifndef _LOCORE
+typedef u_short pmeg_t;                /* 10 bits needed per Sun-4 segmap entry */
+#endif
+
+/*
+ * Here are the bit definitions for 4M/SRMMU pte's
+ */
+               /* MMU TABLE ENTRIES */
+#define SRMMU_TETYPE   0x3             /* mask for table entry type */
+#define SRMMU_TEPTE    0x2             /* Page Table Entry */
+               /* PTE FIELDS */
+#define SRMMU_PPNMASK  0xFFFFFF00
+#define SRMMU_PPNPASHIFT 0x4           /* shift to put ppn into PAddr */